PVE/QemuServer.pm

   1 package PVE::QemuServer;
   2
   3 use strict;
   4 use warnings;
   5 use POSIX;
   6 use IO::Handle;
   7 use IO::Select;
   8 use IO::File;
   9 use IO::Dir;
  10 use IO::Socket::UNIX;
  11 use File::Basename;
  12 use File::Path;
  13 use File::stat;
  14 use Getopt::Long;
  15 use Digest::SHA;
  16 use Fcntl ':flock';
  17 use Cwd 'abs_path';
  18 use IPC::Open3;
  19 use JSON;
  20 use Fcntl;
  21 use PVE::SafeSyslog;
  22 use Storable qw(dclone);
  23 use PVE::Exception qw(raise raise_param_exc);
  24 use PVE::Storage;
  25 use PVE::Tools qw(run_command lock_file lock_file_full file_read_firstline dir_glob_foreach);
  26 use PVE::JSONSchema qw(get_standard_option);
  27 use PVE::Cluster qw(cfs_register_file cfs_read_file cfs_write_file cfs_lock_file);
  28 use PVE::INotify;
  29 use PVE::ProcFSTools;
  30 use PVE::QMPClient;
  31 use PVE::RPCEnvironment;
  32 use Time::HiRes qw(gettimeofday);
  33
  34 my $cpuinfo = PVE::ProcFSTools::read_cpuinfo();
  35
  36 # Note about locking: we use flock on the config file protect
  37 # against concurent actions.
  38 # Aditionaly, we have a 'lock' setting in the config file. This
  39 # can be set to 'migrate', 'backup', 'snapshot' or 'rollback'. Most actions are not
  40 # allowed when such lock is set. But you can ignore this kind of
  41 # lock with the --skiplock flag.
  42
  43 cfs_register_file('/qemu-server/',
  44                   \&parse_vm_config,
  45                   \&write_vm_config);
  46
  47 PVE::JSONSchema::register_standard_option('skiplock', {
  48     description => "Ignore locks - only root is allowed to use this option.",
  49     type => 'boolean',
  50     optional => 1,
  51 });
  52
  53 PVE::JSONSchema::register_standard_option('pve-qm-stateuri', {
  54     description => "Some command save/restore state from this location.",
  55     type => 'string',
  56     maxLength => 128,
  57     optional => 1,
  58 });
  59
  60 PVE::JSONSchema::register_standard_option('pve-snapshot-name', {
  61     description => "The name of the snapshot.",
  62     type => 'string', format => 'pve-configid',
  63     maxLength => 40,
  64 });
  65
  66 #no warnings 'redefine';
  67
  68 unless(defined(&_VZSYSCALLS_H_)) {
  69     eval 'sub _VZSYSCALLS_H_ () {1;}' unless defined(&_VZSYSCALLS_H_);
  70     require 'sys/syscall.ph';
  71     if(defined(&__x86_64__)) {
  72         eval 'sub __NR_fairsched_vcpus () {499;}' unless defined(&__NR_fairsched_vcpus);
  73         eval 'sub __NR_fairsched_mknod () {504;}' unless defined(&__NR_fairsched_mknod);
  74         eval 'sub __NR_fairsched_rmnod () {505;}' unless defined(&__NR_fairsched_rmnod);
  75         eval 'sub __NR_fairsched_chwt () {506;}' unless defined(&__NR_fairsched_chwt);
  76         eval 'sub __NR_fairsched_mvpr () {507;}' unless defined(&__NR_fairsched_mvpr);
  77         eval 'sub __NR_fairsched_rate () {508;}' unless defined(&__NR_fairsched_rate);
  78         eval 'sub __NR_setluid () {501;}' unless defined(&__NR_setluid);
  79         eval 'sub __NR_setublimit () {502;}' unless defined(&__NR_setublimit);
  80     }
  81     elsif(defined( &__i386__) ) {
  82         eval 'sub __NR_fairsched_mknod () {500;}' unless defined(&__NR_fairsched_mknod);
  83         eval 'sub __NR_fairsched_rmnod () {501;}' unless defined(&__NR_fairsched_rmnod);
  84         eval 'sub __NR_fairsched_chwt () {502;}' unless defined(&__NR_fairsched_chwt);
  85         eval 'sub __NR_fairsched_mvpr () {503;}' unless defined(&__NR_fairsched_mvpr);
  86         eval 'sub __NR_fairsched_rate () {504;}' unless defined(&__NR_fairsched_rate);
  87         eval 'sub __NR_fairsched_vcpus () {505;}' unless defined(&__NR_fairsched_vcpus);
  88         eval 'sub __NR_setluid () {511;}' unless defined(&__NR_setluid);
  89         eval 'sub __NR_setublimit () {512;}' unless defined(&__NR_setublimit);
  90     } else {
  91         die("no fairsched syscall for this arch");
  92     }
  93     require 'asm/ioctl.ph';
  94     eval 'sub KVM_GET_API_VERSION () { &_IO(0xAE, 0x);}' unless defined(&KVM_GET_API_VERSION);
  95 }
  96
  97 sub fairsched_mknod {
  98     my ($parent, $weight, $desired) = @_;
  99
 100     return syscall(&__NR_fairsched_mknod, int($parent), int($weight), int($desired));
 101 }
 102
 103 sub fairsched_rmnod {
 104     my ($id) = @_;
 105
 106     return syscall(&__NR_fairsched_rmnod, int($id));
 107 }
 108
 109 sub fairsched_mvpr {
 110     my ($pid, $newid) = @_;
 111
 112     return syscall(&__NR_fairsched_mvpr, int($pid), int($newid));
 113 }
 114
 115 sub fairsched_vcpus {
 116     my ($id, $vcpus) = @_;
 117
 118     return syscall(&__NR_fairsched_vcpus, int($id), int($vcpus));
 119 }
 120
 121 sub fairsched_rate {
 122     my ($id, $op, $rate) = @_;
 123
 124     return syscall(&__NR_fairsched_rate, int($id), int($op), int($rate));
 125 }
 126
 127 use constant FAIRSCHED_SET_RATE  => 0;
 128 use constant FAIRSCHED_DROP_RATE => 1;
 129 use constant FAIRSCHED_GET_RATE  => 2;
 130
 131 sub fairsched_cpulimit {
 132     my ($id, $limit) = @_;
 133
 134     my $cpulim1024 = int($limit * 1024 / 100);
 135     my $op = $cpulim1024 ? FAIRSCHED_SET_RATE : FAIRSCHED_DROP_RATE;
 136
 137     return fairsched_rate($id, $op, $cpulim1024);
 138 }
 139
 140 my $nodename = PVE::INotify::nodename();
 141
 142 mkdir "/etc/pve/nodes/$nodename";
 143 my $confdir = "/etc/pve/nodes/$nodename/qemu-server";
 144 mkdir $confdir;
 145
 146 my $var_run_tmpdir = "/var/run/qemu-server";
 147 mkdir $var_run_tmpdir;
 148
 149 my $lock_dir = "/var/lock/qemu-server";
 150 mkdir $lock_dir;
 151
 152 my $pcisysfs = "/sys/bus/pci";
 153
 154 my $confdesc = {
 155     iothread => {
 156         optional => 1,
 157         type => 'boolean',
 158         description => "Enable iothread dataplane.",
 159         default => 0,
 160     },
 161     onboot => {
 162         optional => 1,
 163         type => 'boolean',
 164         description => "Specifies whether a VM will be started during system bootup.",
 165         default => 0,
 166     },
 167     autostart => {
 168         optional => 1,
 169         type => 'boolean',
 170         description => "Automatic restart after crash (currently ignored).",
 171         default => 0,
 172     },
 173     hotplug => {
 174         optional => 1,
 175         type => 'string', format => 'pve-hotplug-features',
 176         description => "Selectively enable hotplug features. This is a comma separated list of hotplug features: 'network', 'disk', 'cpu', 'memory' and 'usb'. Use '0' to disable hotplug completely. Value '1' is an alias for the default 'network,disk,usb'.",
 177         default => 'network,disk,usb',
 178     },
 179     reboot => {
 180         optional => 1,
 181         type => 'boolean',
 182         description => "Allow reboot. If set to '0' the VM exit on reboot.",
 183         default => 1,
 184     },
 185     lock => {
 186         optional => 1,
 187         type => 'string',
 188         description => "Lock/unlock the VM.",
 189         enum => [qw(migrate backup snapshot rollback)],
 190     },
 191     cpulimit => {
 192         optional => 1,
 193         type => 'integer',
 194         description => "Limit of CPU usage in per cent. Note if the computer has 2 CPUs, it has total of 200% CPU time. Value '0' indicates no CPU limit.\n\nNOTE: This option is currently ignored.",
 195         minimum => 0,
 196         default => 0,
 197     },
 198     cpuunits => {
 199         optional => 1,
 200         type => 'integer',
 201         description => "CPU weight for a VM. Argument is used in the kernel fair scheduler. The larger the number is, the more CPU time this VM gets. Number is relative to weights of all the other running VMs.\n\nNOTE: You can disable fair-scheduler configuration by setting this to 0.",
 202         minimum => 0,
 203         maximum => 500000,
 204         default => 1000,
 205     },
 206     memory => {
 207         optional => 1,
 208         type => 'integer',
 209         description => "Amount of RAM for the VM in MB. This is the maximum available memory when you use the balloon device.",
 210         minimum => 16,
 211         default => 512,
 212     },
 213     balloon => {
 214         optional => 1,
 215         type => 'integer',
 216         description => "Amount of target RAM for the VM in MB. Using zero disables the ballon driver.",
 217         minimum => 0,
 218     },
 219     shares => {
 220         optional => 1,
 221         type => 'integer',
 222         description => "Amount of memory shares for auto-ballooning. The larger the number is, the more memory this VM gets. Number is relative to weights of all other running VMs. Using zero disables auto-ballooning",
 223         minimum => 0,
 224         maximum => 50000,
 225         default => 1000,
 226     },
 227     keyboard => {
 228         optional => 1,
 229         type => 'string',
 230         description => "Keybord layout for vnc server. Default is read from the datacenter configuration file.",
 231         enum => PVE::Tools::kvmkeymaplist(),
 232         default => 'en-us',
 233     },
 234     name => {
 235         optional => 1,
 236         type => 'string', format => 'dns-name',
 237         description => "Set a name for the VM. Only used on the configuration web interface.",
 238     },
 239     scsihw => {
 240         optional => 1,
 241         type => 'string',
 242         description => "scsi controller model",
 243         enum => [qw(lsi lsi53c810 virtio-scsi-pci megasas pvscsi)],
 244         default => 'lsi',
 245     },
 246     description => {
 247         optional => 1,
 248         type => 'string',
 249         description => "Description for the VM. Only used on the configuration web interface. This is saved as comment inside the configuration file.",
 250     },
 251     ostype => {
 252         optional => 1,
 253         type => 'string',
 254         enum => [qw(other wxp w2k w2k3 w2k8 wvista win7 win8 l24 l26 solaris)],
 255         description => <<EODESC,
 256 Used to enable special optimization/features for specific
 257 operating systems:
 258
 259 other  => unspecified OS
 260 wxp    => Microsoft Windows XP
 261 w2k    => Microsoft Windows 2000
 262 w2k3   => Microsoft Windows 2003
 263 w2k8   => Microsoft Windows 2008
 264 wvista => Microsoft Windows Vista
 265 win7   => Microsoft Windows 7
 266 win8   => Microsoft Windows 8/2012
 267 l24    => Linux 2.4 Kernel
 268 l26    => Linux 2.6/3.X Kernel
 269 solaris => solaris/opensolaris/openindiania kernel
 270
 271 other|l24|l26|solaris                       ... no special behaviour
 272 wxp|w2k|w2k3|w2k8|wvista|win7|win8  ... use --localtime switch
 273 EODESC
 274     },
 275     boot => {
 276         optional => 1,
 277         type => 'string',
 278         description => "Boot on floppy (a), hard disk (c), CD-ROM (d), or network (n).",
 279         pattern => '[acdn]{1,4}',
 280         default => 'cdn',
 281     },
 282     bootdisk => {
 283         optional => 1,
 284         type => 'string', format => 'pve-qm-bootdisk',
 285         description => "Enable booting from specified disk.",
 286         pattern => '(ide|sata|scsi|virtio)\d+',
 287     },
 288     smp => {
 289         optional => 1,
 290         type => 'integer',
 291         description => "The number of CPUs. Please use option -sockets instead.",
 292         minimum => 1,
 293         default => 1,
 294     },
 295     sockets => {
 296         optional => 1,
 297         type => 'integer',
 298         description => "The number of CPU sockets.",
 299         minimum => 1,
 300         default => 1,
 301     },
 302     cores => {
 303         optional => 1,
 304         type => 'integer',
 305         description => "The number of cores per socket.",
 306         minimum => 1,
 307         default => 1,
 308     },
 309     numa => {
 310         optional => 1,
 311         type => 'boolean',
 312         description => "Enable/disable Numa.",
 313         default => 0,
 314     },
 315     vcpus => {
 316         optional => 1,
 317         type => 'integer',
 318         description => "Number of hotplugged vcpus.",
 319         minimum => 1,
 320         default => 0,
 321     },
 322     acpi => {
 323         optional => 1,
 324         type => 'boolean',
 325         description => "Enable/disable ACPI.",
 326         default => 1,
 327     },
 328     agent => {
 329         optional => 1,
 330         type => 'boolean',
 331         description => "Enable/disable Qemu GuestAgent.",
 332         default => 0,
 333     },
 334     kvm => {
 335         optional => 1,
 336         type => 'boolean',
 337         description => "Enable/disable KVM hardware virtualization.",
 338         default => 1,
 339     },
 340     tdf => {
 341         optional => 1,
 342         type => 'boolean',
 343         description => "Enable/disable time drift fix.",
 344         default => 0,
 345     },
 346     localtime => {
 347         optional => 1,
 348         type => 'boolean',
 349         description => "Set the real time clock to local time. This is enabled by default if ostype indicates a Microsoft OS.",
 350     },
 351     freeze => {
 352         optional => 1,
 353         type => 'boolean',
 354         description => "Freeze CPU at startup (use 'c' monitor command to start execution).",
 355     },
 356     vga => {
 357         optional => 1,
 358         type => 'string',
 359         description => "Select VGA type. If you want to use high resolution modes (>= 1280x1024x16) then you should use option 'std' or 'vmware'. Default is 'std' for win8/win7/w2k8, and 'cirrur' for other OS types. Option 'qxl' enables the SPICE display sever. You can also run without any graphic card using a serial devive as terminal.",
 360         enum => [qw(std cirrus vmware qxl serial0 serial1 serial2 serial3 qxl2 qxl3 qxl4)],
 361     },
 362     watchdog => {
 363         optional => 1,
 364         type => 'string', format => 'pve-qm-watchdog',
 365         typetext => '[[model=]i6300esb|ib700] [,[action=]reset|shutdown|poweroff|pause|debug|none]',
 366         description => "Create a virtual hardware watchdog device.  Once enabled (by a guest action), the watchdog must be periodically polled by an agent inside the guest or else the guest will be restarted (or execute the action specified)",
 367     },
 368     startdate => {
 369         optional => 1,
 370         type => 'string',
 371         typetext => "(now | YYYY-MM-DD | YYYY-MM-DDTHH:MM:SS)",
 372         description => "Set the initial date of the real time clock. Valid format for date are: 'now' or '2006-06-17T16:01:21' or '2006-06-17'.",
 373         pattern => '(now|\d{4}-\d{1,2}-\d{1,2}(T\d{1,2}:\d{1,2}:\d{1,2})?)',
 374         default => 'now',
 375     },
 376     startup => {
 377         optional => 1,
 378         type => 'string', format => 'pve-qm-startup',
 379         typetext => '[[order=]\d+] [,up=\d+] [,down=\d+] ',
 380         description => "Startup and shutdown behavior. Order is a non-negative number defining the general startup order. Shutdown in done with reverse ordering. Additionally you can set the 'up' or 'down' delay in seconds, which specifies a delay to wait before the next VM is started or stopped.",
 381     },
 382     template => {
 383         optional => 1,
 384         type => 'boolean',
 385         description => "Enable/disable Template.",
 386         default => 0,
 387     },
 388     args => {
 389         optional => 1,
 390         type => 'string',
 391         description => <<EODESCR,
 392 Note: this option is for experts only. It allows you to pass arbitrary arguments to kvm, for example:
 393
 394 args: -no-reboot -no-hpet
 395 EODESCR
 396     },
 397     tablet => {
 398         optional => 1,
 399         type => 'boolean',
 400         default => 1,
 401         description => "Enable/disable the usb tablet device. This device is usually needed to allow absolute mouse positioning with VNC. Else the mouse runs out of sync with normal VNC clients. If you're running lots of console-only guests on one host, you may consider disabling this to save some context switches. This is turned of by default if you use spice (vga=qxl).",
 402     },
 403     migrate_speed => {
 404         optional => 1,
 405         type => 'integer',
 406         description => "Set maximum speed (in MB/s) for migrations. Value 0 is no limit.",
 407         minimum => 0,
 408         default => 0,
 409     },
 410     migrate_downtime => {
 411         optional => 1,
 412         type => 'number',
 413         description => "Set maximum tolerated downtime (in seconds) for migrations.",
 414         minimum => 0,
 415         default => 0.1,
 416     },
 417     cdrom => {
 418         optional => 1,
 419         type => 'string', format => 'pve-qm-drive',
 420         typetext => 'volume',
 421         description => "This is an alias for option -ide2",
 422     },
 423     cpu => {
 424         optional => 1,
 425         description => "Emulated CPU type.",
 426         type => 'string',
 427         enum => [ qw(486 athlon pentium pentium2 pentium3 coreduo core2duo kvm32 kvm64 qemu32 qemu64 phenom Conroe Penryn Nehalem Westmere SandyBridge Haswell Broadwell Opteron_G1 Opteron_G2 Opteron_G3 Opteron_G4 Opteron_G5 host) ],
 428         default => 'kvm64',
 429     },
 430     parent => get_standard_option('pve-snapshot-name', {
 431         optional => 1,
 432         description => "Parent snapshot name. This is used internally, and should not be modified.",
 433     }),
 434     snaptime => {
 435         optional => 1,
 436         description => "Timestamp for snapshots.",
 437         type => 'integer',
 438         minimum => 0,
 439     },
 440     vmstate => {
 441         optional => 1,
 442         type => 'string', format => 'pve-volume-id',
 443         description => "Reference to a volume which stores the VM state. This is used internally for snapshots.",
 444     },
 445     machine => {
 446         description => "Specific the Qemu machine type.",
 447         type => 'string',
 448         pattern => '(pc|pc(-i440fx)?-\d+\.\d+|q35|pc-q35-\d+\.\d+)',
 449         maxLength => 40,
 450         optional => 1,
 451     },
 452     smbios1 => {
 453         description => "Specify SMBIOS type 1 fields.",
 454         type => 'string', format => 'pve-qm-smbios1',
 455         typetext => "[manufacturer=str][,product=str][,version=str][,serial=str] [,uuid=uuid][,sku=str][,family=str]",
 456         maxLength => 256,
 457         optional => 1,
 458     },
 459 };
 460
 461 # what about other qemu settings ?
 462 #cpu => 'string',
 463 #machine => 'string',
 464 #fda => 'file',
 465 #fdb => 'file',
 466 #mtdblock => 'file',
 467 #sd => 'file',
 468 #pflash => 'file',
 469 #snapshot => 'bool',
 470 #bootp => 'file',
 471 ##tftp => 'dir',
 472 ##smb => 'dir',
 473 #kernel => 'file',
 474 #append => 'string',
 475 #initrd => 'file',
 476 ##soundhw => 'string',
 477
 478 while (my ($k, $v) = each %$confdesc) {
 479     PVE::JSONSchema::register_standard_option("pve-qm-$k", $v);
 480 }
 481
 482 my $MAX_IDE_DISKS = 4;
 483 my $MAX_SCSI_DISKS = 14;
 484 my $MAX_VIRTIO_DISKS = 16;
 485 my $MAX_SATA_DISKS = 6;
 486 my $MAX_USB_DEVICES = 5;
 487 my $MAX_NETS = 32;
 488 my $MAX_UNUSED_DISKS = 8;
 489 my $MAX_HOSTPCI_DEVICES = 4;
 490 my $MAX_SERIAL_PORTS = 4;
 491 my $MAX_PARALLEL_PORTS = 3;
 492 my $MAX_NUMA = 8;
 493 my $MAX_MEM = 4194304;
 494 my $STATICMEM = 1024;
 495
 496 my $numadesc = {
 497     optional => 1,
 498     type => 'string', format => 'pve-qm-numanode',
 499     typetext => "cpus=<id[-id],memory=<mb>[[,hostnodes=<id[-id]>] [,policy=<preferred|bind|interleave>]]",
 500     description => "numa topology",
 501 };
 502 PVE::JSONSchema::register_standard_option("pve-qm-numanode", $numadesc);
 503
 504 for (my $i = 0; $i < $MAX_NUMA; $i++)  {
 505     $confdesc->{"numa$i"} = $numadesc;
 506 }
 507
 508 my $nic_model_list = ['rtl8139', 'ne2k_pci', 'e1000',  'pcnet',  'virtio',
 509                       'ne2k_isa', 'i82551', 'i82557b', 'i82559er', 'vmxnet3',
 510                       'e1000-82540em', 'e1000-82544gc', 'e1000-82545em'];
 511 my $nic_model_list_txt = join(' ', sort @$nic_model_list);
 512
 513 my $netdesc = {
 514     optional => 1,
 515     type => 'string', format => 'pve-qm-net',
 516     typetext => "MODEL=XX:XX:XX:XX:XX:XX [,bridge=<dev>][,queues=<nbqueues>][,rate=<mbps>] [,tag=<vlanid>][,firewall=0|1],link_down=0|1]",
 517     description => <<EODESCR,
 518 Specify network devices.
 519
 520 MODEL is one of: $nic_model_list_txt
 521
 522 XX:XX:XX:XX:XX:XX should be an unique MAC address. This is
 523 automatically generated if not specified.
 524
 525 The bridge parameter can be used to automatically add the interface to a bridge device. The Proxmox VE standard bridge is called 'vmbr0'.
 526
 527 Option 'rate' is used to limit traffic bandwidth from and to this interface. It is specified as floating point number, unit is 'Megabytes per second'.
 528
 529 If you specify no bridge, we create a kvm 'user' (NATed) network device, which provides DHCP and DNS services. The following addresses are used:
 530
 531 10.0.2.2   Gateway
 532 10.0.2.3   DNS Server
 533 10.0.2.4   SMB Server
 534
 535 The DHCP server assign addresses to the guest starting from 10.0.2.15.
 536
 537 EODESCR
 538 };
 539 PVE::JSONSchema::register_standard_option("pve-qm-net", $netdesc);
 540
 541 for (my $i = 0; $i < $MAX_NETS; $i++)  {
 542     $confdesc->{"net$i"} = $netdesc;
 543 }
 544
 545 my $drivename_hash;
 546
 547 my $idedesc = {
 548     optional => 1,
 549     type => 'string', format => 'pve-qm-drive',
 550     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads] [,discard=ignore|on]',
 551     description => "Use volume as IDE hard disk or CD-ROM (n is 0 to " .($MAX_IDE_DISKS -1) . ").",
 552 };
 553 PVE::JSONSchema::register_standard_option("pve-qm-ide", $idedesc);
 554
 555 my $scsidesc = {
 556     optional => 1,
 557     type => 'string', format => 'pve-qm-drive',
 558     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads] [,discard=ignore|on]',
 559     description => "Use volume as SCSI hard disk or CD-ROM (n is 0 to " . ($MAX_SCSI_DISKS - 1) . ").",
 560 };
 561 PVE::JSONSchema::register_standard_option("pve-qm-scsi", $scsidesc);
 562
 563 my $satadesc = {
 564     optional => 1,
 565     type => 'string', format => 'pve-qm-drive',
 566     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads]  [,discard=ignore|on]',
 567     description => "Use volume as SATA hard disk or CD-ROM (n is 0 to " . ($MAX_SATA_DISKS - 1). ").",
 568 };
 569 PVE::JSONSchema::register_standard_option("pve-qm-sata", $satadesc);
 570
 571 my $virtiodesc = {
 572     optional => 1,
 573     type => 'string', format => 'pve-qm-drive',
 574     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads]  [,discard=ignore|on]',
 575     description => "Use volume as VIRTIO hard disk (n is 0 to " . ($MAX_VIRTIO_DISKS - 1) . ").",
 576 };
 577 PVE::JSONSchema::register_standard_option("pve-qm-virtio", $virtiodesc);
 578
 579 my $usbdesc = {
 580     optional => 1,
 581     type => 'string', format => 'pve-qm-usb-device',
 582     typetext => 'host=HOSTUSBDEVICE|spice',
 583     description => <<EODESCR,
 584 Configure an USB device (n is 0 to 4). This can be used to
 585 pass-through usb devices to the guest. HOSTUSBDEVICE syntax is:
 586
 587 'bus-port(.port)*' (decimal numbers) or
 588 'vendor_id:product_id' (hexadeciaml numbers)
 589
 590 You can use the 'lsusb -t' command to list existing usb devices.
 591
 592 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 593
 594 The value 'spice' can be used to add a usb redirection devices for spice.
 595
 596 EODESCR
 597 };
 598 PVE::JSONSchema::register_standard_option("pve-qm-usb", $usbdesc);
 599
 600 my $hostpcidesc = {
 601         optional => 1,
 602         type => 'string', format => 'pve-qm-hostpci',
 603         typetext => "[host=]HOSTPCIDEVICE [,driver=kvm|vfio] [,rombar=on|off] [,pcie=0|1] [,x-vga=on|off]",
 604         description => <<EODESCR,
 605 Map host pci devices. HOSTPCIDEVICE syntax is:
 606
 607 'bus:dev.func' (hexadecimal numbers)
 608
 609 You can us the 'lspci' command to list existing pci devices.
 610
 611 The 'rombar' option determines whether or not the device's ROM will be visible in the guest's memory map (default is 'on').
 612
 613 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 614
 615 Experimental: user reported problems with this option.
 616 EODESCR
 617 };
 618 PVE::JSONSchema::register_standard_option("pve-qm-hostpci", $hostpcidesc);
 619
 620 my $serialdesc = {
 621         optional => 1,
 622         type => 'string',
 623         pattern => '(/dev/.+|socket)',
 624         description =>  <<EODESCR,
 625 Create a serial device inside the VM (n is 0 to 3), and pass through a host serial device (i.e. /dev/ttyS0), or create a unix socket on the host side (use 'qm terminal' to open a terminal connection).
 626
 627 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 628
 629 Experimental: user reported problems with this option.
 630 EODESCR
 631 };
 632
 633 my $paralleldesc= {
 634         optional => 1,
 635         type => 'string',
 636         pattern => '/dev/parport\d+|/dev/usb/lp\d+',
 637         description =>  <<EODESCR,
 638 Map host parallel devices (n is 0 to 2).
 639
 640 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 641
 642 Experimental: user reported problems with this option.
 643 EODESCR
 644 };
 645
 646 for (my $i = 0; $i < $MAX_PARALLEL_PORTS; $i++)  {
 647     $confdesc->{"parallel$i"} = $paralleldesc;
 648 }
 649
 650 for (my $i = 0; $i < $MAX_SERIAL_PORTS; $i++)  {
 651     $confdesc->{"serial$i"} = $serialdesc;
 652 }
 653
 654 for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
 655     $confdesc->{"hostpci$i"} = $hostpcidesc;
 656 }
 657
 658 for (my $i = 0; $i < $MAX_IDE_DISKS; $i++)  {
 659     $drivename_hash->{"ide$i"} = 1;
 660     $confdesc->{"ide$i"} = $idedesc;
 661 }
 662
 663 for (my $i = 0; $i < $MAX_SATA_DISKS; $i++)  {
 664     $drivename_hash->{"sata$i"} = 1;
 665     $confdesc->{"sata$i"} = $satadesc;
 666 }
 667
 668 for (my $i = 0; $i < $MAX_SCSI_DISKS; $i++)  {
 669     $drivename_hash->{"scsi$i"} = 1;
 670     $confdesc->{"scsi$i"} = $scsidesc ;
 671 }
 672
 673 for (my $i = 0; $i < $MAX_VIRTIO_DISKS; $i++)  {
 674     $drivename_hash->{"virtio$i"} = 1;
 675     $confdesc->{"virtio$i"} = $virtiodesc;
 676 }
 677
 678 for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
 679     $confdesc->{"usb$i"} = $usbdesc;
 680 }
 681
 682 my $unuseddesc = {
 683     optional => 1,
 684     type => 'string', format => 'pve-volume-id',
 685     description => "Reference to unused volumes.",
 686 };
 687
 688 for (my $i = 0; $i < $MAX_UNUSED_DISKS; $i++)  {
 689     $confdesc->{"unused$i"} = $unuseddesc;
 690 }
 691
 692 my $kvm_api_version = 0;
 693
 694 sub kvm_version {
 695
 696     return $kvm_api_version if $kvm_api_version;
 697
 698     my $fh = IO::File->new("</dev/kvm") ||
 699         return 0;
 700
 701     if (my $v = $fh->ioctl(KVM_GET_API_VERSION(), 0)) {
 702         $kvm_api_version = $v;
 703     }
 704
 705     $fh->close();
 706
 707     return  $kvm_api_version;
 708 }
 709
 710 my $kvm_user_version;
 711
 712 sub kvm_user_version {
 713
 714     return $kvm_user_version if $kvm_user_version;
 715
 716     $kvm_user_version = 'unknown';
 717
 718     my $tmp = `kvm -help 2>/dev/null`;
 719
 720     if ($tmp =~ m/^QEMU( PC)? emulator version (\d+\.\d+(\.\d+)?)[,\s]/) {
 721         $kvm_user_version = $2;
 722     }
 723
 724     return $kvm_user_version;
 725
 726 }
 727
 728 my $kernel_has_vhost_net = -c '/dev/vhost-net';
 729
 730 sub disknames {
 731     # order is important - used to autoselect boot disk
 732     return ((map { "ide$_" } (0 .. ($MAX_IDE_DISKS - 1))),
 733             (map { "scsi$_" } (0 .. ($MAX_SCSI_DISKS - 1))),
 734             (map { "virtio$_" } (0 .. ($MAX_VIRTIO_DISKS - 1))),
 735             (map { "sata$_" } (0 .. ($MAX_SATA_DISKS - 1))));
 736 }
 737
 738 sub valid_drivename {
 739     my $dev = shift;
 740
 741     return defined($drivename_hash->{$dev});
 742 }
 743
 744 sub option_exists {
 745     my $key = shift;
 746     return defined($confdesc->{$key});
 747 }
 748
 749 sub nic_models {
 750     return $nic_model_list;
 751 }
 752
 753 sub os_list_description {
 754
 755     return {
 756         other => 'Other',
 757         wxp => 'Windows XP',
 758         w2k => 'Windows 2000',
 759         w2k3 =>, 'Windows 2003',
 760         w2k8 => 'Windows 2008',
 761         wvista => 'Windows Vista',
 762         win7 => 'Windows 7',
 763         win8 => 'Windows 8/2012',
 764         l24 => 'Linux 2.4',
 765         l26 => 'Linux 2.6',
 766     };
 767 }
 768
 769 my $cdrom_path;
 770
 771 sub get_cdrom_path {
 772
 773     return  $cdrom_path if $cdrom_path;
 774
 775     return $cdrom_path = "/dev/cdrom" if -l "/dev/cdrom";
 776     return $cdrom_path = "/dev/cdrom1" if -l "/dev/cdrom1";
 777     return $cdrom_path = "/dev/cdrom2" if -l "/dev/cdrom2";
 778 }
 779
 780 sub get_iso_path {
 781     my ($storecfg, $vmid, $cdrom) = @_;
 782
 783     if ($cdrom eq 'cdrom') {
 784         return get_cdrom_path();
 785     } elsif ($cdrom eq 'none') {
 786         return '';
 787     } elsif ($cdrom =~ m|^/|) {
 788         return $cdrom;
 789     } else {
 790         return PVE::Storage::path($storecfg, $cdrom);
 791     }
 792 }
 793
 794 # try to convert old style file names to volume IDs
 795 sub filename_to_volume_id {
 796     my ($vmid, $file, $media) = @_;
 797
 798     if (!($file eq 'none' || $file eq 'cdrom' ||
 799           $file =~ m|^/dev/.+| || $file =~ m/^([^:]+):(.+)$/)) {
 800
 801         return undef if $file =~ m|/|;
 802
 803         if ($media && $media eq 'cdrom') {
 804             $file = "local:iso/$file";
 805         } else {
 806             $file = "local:$vmid/$file";
 807         }
 808     }
 809
 810     return $file;
 811 }
 812
 813 sub verify_media_type {
 814     my ($opt, $vtype, $media) = @_;
 815
 816     return if !$media;
 817
 818     my $etype;
 819     if ($media eq 'disk') {
 820         $etype = 'images';
 821     } elsif ($media eq 'cdrom') {
 822         $etype = 'iso';
 823     } else {
 824         die "internal error";
 825     }
 826
 827     return if ($vtype eq $etype);
 828
 829     raise_param_exc({ $opt => "unexpected media type ($vtype != $etype)" });
 830 }
 831
 832 sub cleanup_drive_path {
 833     my ($opt, $storecfg, $drive) = @_;
 834
 835     # try to convert filesystem paths to volume IDs
 836
 837     if (($drive->{file} !~ m/^(cdrom|none)$/) &&
 838         ($drive->{file} !~ m|^/dev/.+|) &&
 839         ($drive->{file} !~ m/^([^:]+):(.+)$/) &&
 840         ($drive->{file} !~ m/^\d+$/)) {
 841         my ($vtype, $volid) = PVE::Storage::path_to_volume_id($storecfg, $drive->{file});
 842         raise_param_exc({ $opt => "unable to associate path '$drive->{file}' to any storage"}) if !$vtype;
 843         $drive->{media} = 'cdrom' if !$drive->{media} && $vtype eq 'iso';
 844         verify_media_type($opt, $vtype, $drive->{media});
 845         $drive->{file} = $volid;
 846     }
 847
 848     $drive->{media} = 'cdrom' if !$drive->{media} && $drive->{file} =~ m/^(cdrom|none)$/;
 849 }
 850
 851 sub create_conf_nolock {
 852     my ($vmid, $settings) = @_;
 853
 854     my $filename = config_file($vmid);
 855
 856     die "configuration file '$filename' already exists\n" if -f $filename;
 857
 858     my $defaults = load_defaults();
 859
 860     $settings->{name} = "vm$vmid" if !$settings->{name};
 861     $settings->{memory} = $defaults->{memory} if !$settings->{memory};
 862
 863     my $data = '';
 864     foreach my $opt (keys %$settings) {
 865         next if !$confdesc->{$opt};
 866
 867         my $value = $settings->{$opt};
 868         next if !$value;
 869
 870         $data .= "$opt: $value\n";
 871     }
 872
 873     PVE::Tools::file_set_contents($filename, $data);
 874 }
 875
 876 sub parse_hotplug_features {
 877     my ($data) = @_;
 878
 879     my $res = {};
 880
 881     return $res if $data eq '0';
 882
 883     $data = $confdesc->{hotplug}->{default} if $data eq '1';
 884
 885     foreach my $feature (PVE::Tools::split_list($data)) {
 886         if ($feature =~ m/^(network|disk|cpu|memory|usb)$/) {
 887             $res->{$1} = 1;
 888         } else {
 889             warn "ignoring unknown hotplug feature '$feature'\n";
 890         }
 891     }
 892     return $res;
 893 }
 894
 895 PVE::JSONSchema::register_format('pve-hotplug-features', \&pve_verify_hotplug_features);
 896 sub pve_verify_hotplug_features {
 897     my ($value, $noerr) = @_;
 898
 899     return $value if parse_hotplug_features($value);
 900
 901     return undef if $noerr;
 902
 903     die "unable to parse hotplug option\n";
 904 }
 905
 906 my $parse_size = sub {
 907     my ($value) = @_;
 908
 909     return undef if $value !~ m/^(\d+(\.\d+)?)([KMG])?$/;
 910     my ($size, $unit) = ($1, $3);
 911     if ($unit) {
 912         if ($unit eq 'K') {
 913             $size = $size * 1024;
 914         } elsif ($unit eq 'M') {
 915             $size = $size * 1024 * 1024;
 916         } elsif ($unit eq 'G') {
 917             $size = $size * 1024 * 1024 * 1024;
 918         }
 919     }
 920     return int($size);
 921 };
 922
 923 my $format_size = sub {
 924     my ($size) = @_;
 925
 926     $size = int($size);
 927
 928     my $kb = int($size/1024);
 929     return $size if $kb*1024 != $size;
 930
 931     my $mb = int($kb/1024);
 932     return "${kb}K" if $mb*1024 != $kb;
 933
 934     my $gb = int($mb/1024);
 935     return "${mb}M" if $gb*1024 != $mb;
 936
 937     return "${gb}G";
 938 };
 939
 940 # ideX = [volume=]volume-id[,media=d][,cyls=c,heads=h,secs=s[,trans=t]]
 941 #        [,snapshot=on|off][,cache=on|off][,format=f][,backup=yes|no]
 942 #        [,rerror=ignore|report|stop][,werror=enospc|ignore|report|stop]
 943 #        [,aio=native|threads][,discard=ignore|on]
 944
 945 sub parse_drive {
 946     my ($key, $data) = @_;
 947
 948     my $res = {};
 949
 950     # $key may be undefined - used to verify JSON parameters
 951     if (!defined($key)) {
 952         $res->{interface} = 'unknown'; # should not harm when used to verify parameters
 953         $res->{index} = 0;
 954     } elsif ($key =~ m/^([^\d]+)(\d+)$/) {
 955         $res->{interface} = $1;
 956         $res->{index} = $2;
 957     } else {
 958         return undef;
 959     }
 960
 961     foreach my $p (split (/,/, $data)) {
 962         next if $p =~ m/^\s*$/;
 963
 964         if ($p =~ m/^(file|volume|cyls|heads|secs|trans|media|snapshot|cache|format|rerror|werror|backup|aio|bps|mbps|mbps_max|bps_rd|mbps_rd|mbps_rd_max|bps_wr|mbps_wr|mbps_wr_max|iops|iops_max|iops_rd|iops_rd_max|iops_wr|iops_wr_max|size|discard)=(.+)$/) {
 965             my ($k, $v) = ($1, $2);
 966
 967             $k = 'file' if $k eq 'volume';
 968
 969             return undef if defined $res->{$k};
 970
 971             if ($k eq 'bps' || $k eq 'bps_rd' || $k eq 'bps_wr') {
 972                 return undef if !$v || $v !~ m/^\d+/;
 973                 $k = "m$k";
 974                 $v = sprintf("%.3f", $v / (1024*1024));
 975             }
 976             $res->{$k} = $v;
 977         } else {
 978             if (!$res->{file} && $p !~ m/=/) {
 979                 $res->{file} = $p;
 980             } else {
 981                 return undef;
 982             }
 983         }
 984     }
 985
 986     return undef if !$res->{file};
 987
 988     if($res->{file} =~ m/\.(raw|cow|qcow|qcow2|vmdk|cloop)$/){
 989         $res->{format} = $1;
 990     }
 991
 992     return undef if $res->{cache} &&
 993         $res->{cache} !~ m/^(off|none|writethrough|writeback|unsafe|directsync)$/;
 994     return undef if $res->{snapshot} && $res->{snapshot} !~ m/^(on|off)$/;
 995     return undef if $res->{cyls} && $res->{cyls} !~ m/^\d+$/;
 996     return undef if $res->{heads} && $res->{heads} !~ m/^\d+$/;
 997     return undef if $res->{secs} && $res->{secs} !~ m/^\d+$/;
 998     return undef if $res->{media} && $res->{media} !~ m/^(disk|cdrom)$/;
 999     return undef if $res->{trans} && $res->{trans} !~ m/^(none|lba|auto)$/;
1000     return undef if $res->{format} && $res->{format} !~ m/^(raw|cow|qcow|qcow2|vmdk|cloop)$/;
1001     return undef if $res->{rerror} && $res->{rerror} !~ m/^(ignore|report|stop)$/;
1002     return undef if $res->{werror} && $res->{werror} !~ m/^(enospc|ignore|report|stop)$/;
1003     return undef if $res->{backup} && $res->{backup} !~ m/^(yes|no)$/;
1004     return undef if $res->{aio} && $res->{aio} !~ m/^(native|threads)$/;
1005     return undef if $res->{discard} && $res->{discard} !~ m/^(ignore|on)$/;
1006
1007     return undef if $res->{mbps_rd} && $res->{mbps};
1008     return undef if $res->{mbps_wr} && $res->{mbps};
1009
1010     return undef if $res->{mbps} && $res->{mbps} !~ m/^\d+(\.\d+)?$/;
1011     return undef if $res->{mbps_max} && $res->{mbps_max} !~ m/^\d+(\.\d+)?$/;
1012     return undef if $res->{mbps_rd} && $res->{mbps_rd} !~ m/^\d+(\.\d+)?$/;
1013     return undef if $res->{mbps_rd_max} && $res->{mbps_rd_max} !~ m/^\d+(\.\d+)?$/;
1014     return undef if $res->{mbps_wr} && $res->{mbps_wr} !~ m/^\d+(\.\d+)?$/;
1015     return undef if $res->{mbps_wr_max} && $res->{mbps_wr_max} !~ m/^\d+(\.\d+)?$/;
1016
1017     return undef if $res->{iops_rd} && $res->{iops};
1018     return undef if $res->{iops_wr} && $res->{iops};
1019
1020
1021     return undef if $res->{iops} && $res->{iops} !~ m/^\d+$/;
1022     return undef if $res->{iops_max} && $res->{iops_max} !~ m/^\d+$/;
1023     return undef if $res->{iops_rd} && $res->{iops_rd} !~ m/^\d+$/;
1024     return undef if $res->{iops_rd_max} && $res->{iops_rd_max} !~ m/^\d+$/;
1025     return undef if $res->{iops_wr} && $res->{iops_wr} !~ m/^\d+$/;
1026     return undef if $res->{iops_wr_max} && $res->{iops_wr_max} !~ m/^\d+$/;
1027
1028
1029     if ($res->{size}) {
1030         return undef if !defined($res->{size} = &$parse_size($res->{size}));
1031     }
1032
1033     if ($res->{media} && ($res->{media} eq 'cdrom')) {
1034         return undef if $res->{snapshot} || $res->{trans} || $res->{format};
1035         return undef if $res->{heads} || $res->{secs} || $res->{cyls};
1036         return undef if $res->{interface} eq 'virtio';
1037     }
1038
1039     # rerror does not work with scsi drives
1040     if ($res->{rerror}) {
1041         return undef if $res->{interface} eq 'scsi';
1042     }
1043
1044     return $res;
1045 }
1046
1047 my @qemu_drive_options = qw(heads secs cyls trans media format cache snapshot rerror werror aio discard iops iops_rd iops_wr iops_max iops_rd_max iops_wr_max);
1048
1049 sub print_drive {
1050     my ($vmid, $drive) = @_;
1051
1052     my $opts = '';
1053     foreach my $o (@qemu_drive_options, 'mbps', 'mbps_rd', 'mbps_wr', 'mbps_max', 'mbps_rd_max', 'mbps_wr_max', 'backup') {
1054         $opts .= ",$o=$drive->{$o}" if $drive->{$o};
1055     }
1056
1057     if ($drive->{size}) {
1058         $opts .= ",size=" . &$format_size($drive->{size});
1059     }
1060
1061     return "$drive->{file}$opts";
1062 }
1063
1064 sub scsi_inquiry {
1065     my($fh, $noerr) = @_;
1066
1067     my $SG_IO = 0x2285;
1068     my $SG_GET_VERSION_NUM = 0x2282;
1069
1070     my $versionbuf = "\x00" x 8;
1071     my $ret = ioctl($fh, $SG_GET_VERSION_NUM, $versionbuf);
1072     if (!$ret) {
1073         die "scsi ioctl SG_GET_VERSION_NUM failoed - $!\n" if !$noerr;
1074         return undef;
1075     }
1076     my $version = unpack("I", $versionbuf);
1077     if ($version < 30000) {
1078         die "scsi generic interface too old\n"  if !$noerr;
1079         return undef;
1080     }
1081
1082     my $buf = "\x00" x 36;
1083     my $sensebuf = "\x00" x 8;
1084     my $cmd = pack("C x3 C x1", 0x12, 36);
1085
1086     # see /usr/include/scsi/sg.h
1087     my $sg_io_hdr_t = "i i C C s I P P P I I i P C C C C S S i I I";
1088
1089     my $packet = pack($sg_io_hdr_t, ord('S'), -3, length($cmd),
1090                       length($sensebuf), 0, length($buf), $buf,
1091                       $cmd, $sensebuf, 6000);
1092
1093     $ret = ioctl($fh, $SG_IO, $packet);
1094     if (!$ret) {
1095         die "scsi ioctl SG_IO failed - $!\n" if !$noerr;
1096         return undef;
1097     }
1098
1099     my @res = unpack($sg_io_hdr_t, $packet);
1100     if ($res[17] || $res[18]) {
1101         die "scsi ioctl SG_IO status error - $!\n" if !$noerr;
1102         return undef;
1103     }
1104
1105     my $res = {};
1106     (my $byte0, my $byte1, $res->{vendor},
1107      $res->{product}, $res->{revision}) = unpack("C C x6 A8 A16 A4", $buf);
1108
1109     $res->{removable} = $byte1 & 128 ? 1 : 0;
1110     $res->{type} = $byte0 & 31;
1111
1112     return $res;
1113 }
1114
1115 sub path_is_scsi {
1116     my ($path) = @_;
1117
1118     my $fh = IO::File->new("+<$path") || return undef;
1119     my $res = scsi_inquiry($fh, 1);
1120     close($fh);
1121
1122     return $res;
1123 }
1124
1125 sub machine_type_is_q35 {
1126     my ($conf) = @_;
1127
1128     return $conf->{machine} && ($conf->{machine} =~ m/q35/) ? 1 : 0;
1129 }
1130
1131 sub print_tabletdevice_full {
1132     my ($conf) = @_;
1133
1134     my $q35 = machine_type_is_q35($conf);
1135
1136     # we use uhci for old VMs because tablet driver was buggy in older qemu
1137     my $usbbus = $q35 ? "ehci" : "uhci";
1138
1139     return "usb-tablet,id=tablet,bus=$usbbus.0,port=1";
1140 }
1141
1142 sub print_drivedevice_full {
1143     my ($storecfg, $conf, $vmid, $drive, $bridges) = @_;
1144
1145     my $device = '';
1146     my $maxdev = 0;
1147
1148     if ($drive->{interface} eq 'virtio') {
1149         my $pciaddr = print_pci_addr("$drive->{interface}$drive->{index}", $bridges);
1150         $device = "virtio-blk-pci,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}$pciaddr";
1151         $device .= ",iothread=iothread0" if $conf->{iothread};
1152     } elsif ($drive->{interface} eq 'scsi') {
1153         $maxdev = ($conf->{scsihw} && ($conf->{scsihw} !~ m/^lsi/)) ? 256 : 7;
1154         my $controller = int($drive->{index} / $maxdev);
1155         my $unit = $drive->{index} % $maxdev;
1156         my $devicetype = 'hd';
1157         my $path = '';
1158         if (drive_is_cdrom($drive)) {
1159               $devicetype = 'cd';
1160         } else {
1161               if ($drive->{file} =~ m|^/|) {
1162                   $path = $drive->{file};
1163               } else {
1164                   $path = PVE::Storage::path($storecfg, $drive->{file});
1165               }
1166
1167               if($path =~ m/^iscsi\:\/\//){
1168                   $devicetype = 'generic';
1169               } else {
1170                   if (my $info = path_is_scsi($path)) {
1171                       if ($info->{type} == 0) {
1172                           $devicetype = 'block';
1173                       } elsif ($info->{type} == 1) { # tape
1174                           $devicetype = 'generic';
1175                       }
1176                   }
1177               }
1178          }
1179
1180         if (!$conf->{scsihw} || ($conf->{scsihw} =~ m/^lsi/)){
1181             $device = "scsi-$devicetype,bus=scsihw$controller.0,scsi-id=$unit,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1182         } else {
1183             $device = "scsi-$devicetype,bus=scsihw$controller.0,channel=0,scsi-id=0,lun=$drive->{index},drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1184         }
1185
1186     } elsif ($drive->{interface} eq 'ide'){
1187         $maxdev = 2;
1188         my $controller = int($drive->{index} / $maxdev);
1189         my $unit = $drive->{index} % $maxdev;
1190         my $devicetype = ($drive->{media} && $drive->{media} eq 'cdrom') ? "cd" : "hd";
1191
1192         $device = "ide-$devicetype,bus=ide.$controller,unit=$unit,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1193     } elsif ($drive->{interface} eq 'sata'){
1194         my $controller = int($drive->{index} / $MAX_SATA_DISKS);
1195         my $unit = $drive->{index} % $MAX_SATA_DISKS;
1196         $device = "ide-drive,bus=ahci$controller.$unit,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1197     } elsif ($drive->{interface} eq 'usb') {
1198         die "implement me";
1199         #  -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0
1200     } else {
1201         die "unsupported interface type";
1202     }
1203
1204     $device .= ",bootindex=$drive->{bootindex}" if $drive->{bootindex};
1205
1206     return $device;
1207 }
1208
1209 sub get_initiator_name {
1210     my $initiator;
1211
1212     my $fh = IO::File->new('/etc/iscsi/initiatorname.iscsi') || return undef;
1213     while (defined(my $line = <$fh>)) {
1214         next if $line !~ m/^\s*InitiatorName\s*=\s*([\.\-:\w]+)/;
1215         $initiator = $1;
1216         last;
1217     }
1218     $fh->close();
1219
1220     return $initiator;
1221 }
1222
1223 sub print_drive_full {
1224     my ($storecfg, $vmid, $drive) = @_;
1225
1226     my $opts = '';
1227     foreach my $o (@qemu_drive_options) {
1228         next if $o eq 'bootindex';
1229         $opts .= ",$o=$drive->{$o}" if $drive->{$o};
1230     }
1231
1232     foreach my $o (qw(bps bps_rd bps_wr)) {
1233         my $v = $drive->{"m$o"};
1234         $opts .= ",$o=" . int($v*1024*1024) if $v;
1235     }
1236
1237     # use linux-aio by default (qemu default is threads)
1238     $opts .= ",aio=native" if !$drive->{aio};
1239
1240     my $path;
1241     my $volid = $drive->{file};
1242     if (drive_is_cdrom($drive)) {
1243         $path = get_iso_path($storecfg, $vmid, $volid);
1244     } else {
1245         if ($volid =~ m|^/|) {
1246             $path = $volid;
1247         } else {
1248             $path = PVE::Storage::path($storecfg, $volid);
1249         }
1250     }
1251
1252     $opts .= ",cache=none" if !$drive->{cache} && !drive_is_cdrom($drive);
1253
1254     my $detectzeroes = $drive->{discard} ? "unmap" : "on";
1255     $opts .= ",detect-zeroes=$detectzeroes" if !drive_is_cdrom($drive);
1256
1257     my $pathinfo = $path ? "file=$path," : '';
1258
1259     return "${pathinfo}if=none,id=drive-$drive->{interface}$drive->{index}$opts";
1260 }
1261
1262 sub print_netdevice_full {
1263     my ($vmid, $conf, $net, $netid, $bridges) = @_;
1264
1265     my $bootorder = $conf->{boot} || $confdesc->{boot}->{default};
1266
1267     my $device = $net->{model};
1268     if ($net->{model} eq 'virtio') {
1269          $device = 'virtio-net-pci';
1270      };
1271
1272     my $pciaddr = print_pci_addr("$netid", $bridges);
1273     my $tmpstr = "$device,mac=$net->{macaddr},netdev=$netid$pciaddr,id=$netid";
1274     if ($net->{queues} && $net->{queues} > 1 && $net->{model} eq 'virtio'){
1275         #Consider we have N queues, the number of vectors needed is 2*N + 2 (plus one config interrupt and control vq)
1276         my $vectors = $net->{queues} * 2 + 2;
1277         $tmpstr .= ",vectors=$vectors,mq=on";
1278     }
1279     $tmpstr .= ",bootindex=$net->{bootindex}" if $net->{bootindex} ;
1280     return $tmpstr;
1281 }
1282
1283 sub print_netdev_full {
1284     my ($vmid, $conf, $net, $netid) = @_;
1285
1286     my $i = '';
1287     if ($netid =~ m/^net(\d+)$/) {
1288         $i = int($1);
1289     }
1290
1291     die "got strange net id '$i'\n" if $i >= ${MAX_NETS};
1292
1293     my $ifname = "tap${vmid}i$i";
1294
1295     # kvm uses TUNSETIFF ioctl, and that limits ifname length
1296     die "interface name '$ifname' is too long (max 15 character)\n"
1297         if length($ifname) >= 16;
1298
1299     my $vhostparam = '';
1300     $vhostparam = ',vhost=on' if $kernel_has_vhost_net && $net->{model} eq 'virtio';
1301
1302     my $vmname = $conf->{name} || "vm$vmid";
1303
1304     my $netdev = "";
1305
1306     if ($net->{bridge}) {
1307         $netdev = "type=tap,id=$netid,ifname=${ifname},script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown$vhostparam";
1308     } else {
1309         $netdev = "type=user,id=$netid,hostname=$vmname";
1310     }
1311
1312     $netdev .= ",queues=$net->{queues}" if ($net->{queues} && $net->{model} eq 'virtio');
1313
1314     return $netdev;
1315 }
1316
1317 sub drive_is_cdrom {
1318     my ($drive) = @_;
1319
1320     return $drive && $drive->{media} && ($drive->{media} eq 'cdrom');
1321
1322 }
1323
1324 sub parse_numa {
1325     my ($data) = @_;
1326
1327     my $res = {};
1328
1329     foreach my $kvp (split(/,/, $data)) {
1330
1331         if ($kvp =~ m/^memory=(\S+)$/) {
1332             $res->{memory} = $1;
1333         } elsif ($kvp =~ m/^policy=(preferred|bind|interleave)$/) {
1334             $res->{policy} = $1;
1335         } elsif ($kvp =~ m/^cpus=(\d+)(-(\d+))?$/) {
1336             $res->{cpus}->{start} = $1;
1337             $res->{cpus}->{end} = $3;
1338         } elsif ($kvp =~ m/^hostnodes=(\d+)(-(\d+))?$/) {
1339             $res->{hostnodes}->{start} = $1;
1340             $res->{hostnodes}->{end} = $3;
1341         } else {
1342             return undef;
1343         }
1344     }
1345
1346     return $res;
1347 }
1348
1349 sub parse_hostpci {
1350     my ($value) = @_;
1351
1352     return undef if !$value;
1353
1354
1355     my @list = split(/,/, $value);
1356     my $found;
1357
1358     my $res = {};
1359     foreach my $kv (@list) {
1360
1361         if ($kv =~ m/^(host=)?([a-f0-9]{2}:[a-f0-9]{2})(\.([a-f0-9]))?$/) {
1362             $found = 1;
1363             if(defined($4)){
1364                 push @{$res->{pciid}}, { id => $2 , function => $4};
1365
1366             }else{
1367                 my $pcidevices = lspci($2);
1368                 $res->{pciid} = $pcidevices->{$2};
1369             }
1370         } elsif ($kv =~ m/^driver=(kvm|vfio)$/) {
1371             $res->{driver} = $1;
1372         } elsif ($kv =~ m/^rombar=(on|off)$/) {
1373             $res->{rombar} = $1;
1374         } elsif ($kv =~ m/^x-vga=(on|off)$/) {
1375             $res->{'x-vga'} = $1;
1376         } elsif ($kv =~ m/^pcie=(\d+)$/) {
1377             $res->{pcie} = 1 if $1 == 1;
1378         } else {
1379             warn "unknown hostpci setting '$kv'\n";
1380         }
1381     }
1382
1383     return undef if !$found;
1384
1385     return $res;
1386 }
1387
1388 # netX: e1000=XX:XX:XX:XX:XX:XX,bridge=vmbr0,rate=<mbps>
1389 sub parse_net {
1390     my ($data) = @_;
1391
1392     my $res = {};
1393
1394     foreach my $kvp (split(/,/, $data)) {
1395
1396         if ($kvp =~ m/^(ne2k_pci|e1000|e1000-82540em|e1000-82544gc|e1000-82545em|rtl8139|pcnet|virtio|ne2k_isa|i82551|i82557b|i82559er|vmxnet3)(=([0-9a-f]{2}(:[0-9a-f]{2}){5}))?$/i) {
1397             my $model = lc($1);
1398             my $mac = defined($3) ? uc($3) : PVE::Tools::random_ether_addr();
1399             $res->{model} = $model;
1400             $res->{macaddr} = $mac;
1401         } elsif ($kvp =~ m/^bridge=(\S+)$/) {
1402             $res->{bridge} = $1;
1403         } elsif ($kvp =~ m/^queues=(\d+)$/) {
1404             $res->{queues} = $1;
1405         } elsif ($kvp =~ m/^rate=(\d+(\.\d+)?)$/) {
1406             $res->{rate} = $1;
1407         } elsif ($kvp =~ m/^tag=(\d+)$/) {
1408             $res->{tag} = $1;
1409         } elsif ($kvp =~ m/^firewall=([01])$/) {
1410             $res->{firewall} = $1;
1411         } elsif ($kvp =~ m/^link_down=([01])$/) {
1412             $res->{link_down} = $1;
1413         } else {
1414             return undef;
1415         }
1416
1417     }
1418
1419     return undef if !$res->{model};
1420
1421     return $res;
1422 }
1423
1424 sub print_net {
1425     my $net = shift;
1426
1427     my $res = "$net->{model}";
1428     $res .= "=$net->{macaddr}" if $net->{macaddr};
1429     $res .= ",bridge=$net->{bridge}" if $net->{bridge};
1430     $res .= ",rate=$net->{rate}" if $net->{rate};
1431     $res .= ",tag=$net->{tag}" if $net->{tag};
1432     $res .= ",firewall=1" if $net->{firewall};
1433     $res .= ",link_down=1" if $net->{link_down};
1434     $res .= ",queues=$net->{queues}" if $net->{queues};
1435
1436     return $res;
1437 }
1438
1439 sub add_random_macs {
1440     my ($settings) = @_;
1441
1442     foreach my $opt (keys %$settings) {
1443         next if $opt !~ m/^net(\d+)$/;
1444         my $net = parse_net($settings->{$opt});
1445         next if !$net;
1446         $settings->{$opt} = print_net($net);
1447     }
1448 }
1449
1450 sub add_unused_volume {
1451     my ($config, $volid) = @_;
1452
1453     my $key;
1454     for (my $ind = $MAX_UNUSED_DISKS - 1; $ind >= 0; $ind--) {
1455         my $test = "unused$ind";
1456         if (my $vid = $config->{$test}) {
1457             return if $vid eq $volid; # do not add duplicates
1458         } else {
1459             $key = $test;
1460         }
1461     }
1462
1463     die "To many unused volume - please delete them first.\n" if !$key;
1464
1465     $config->{$key} = $volid;
1466
1467     return $key;
1468 }
1469
1470 sub vm_is_volid_owner {
1471     my ($storecfg, $vmid, $volid) = @_;
1472
1473     if ($volid !~  m|^/|) {
1474         my ($path, $owner);
1475         eval { ($path, $owner) = PVE::Storage::path($storecfg, $volid); };
1476         if ($owner && ($owner == $vmid)) {
1477             return 1;
1478         }
1479     }
1480
1481     return undef;
1482 }
1483
1484 sub vmconfig_delete_pending_option {
1485     my ($conf, $key) = @_;
1486
1487     delete $conf->{pending}->{$key};
1488     my $pending_delete_hash = { $key => 1 };
1489     foreach my $opt (PVE::Tools::split_list($conf->{pending}->{delete})) {
1490         $pending_delete_hash->{$opt} = 1;
1491     }
1492     $conf->{pending}->{delete} = join(',', keys %$pending_delete_hash);
1493 }
1494
1495 sub vmconfig_undelete_pending_option {
1496     my ($conf, $key) = @_;
1497
1498     my $pending_delete_hash = {};
1499     foreach my $opt (PVE::Tools::split_list($conf->{pending}->{delete})) {
1500         $pending_delete_hash->{$opt} = 1;
1501     }
1502     delete $pending_delete_hash->{$key};
1503
1504     my @keylist = keys %$pending_delete_hash;
1505     if (scalar(@keylist)) {
1506         $conf->{pending}->{delete} = join(',', @keylist);
1507     } else {
1508         delete $conf->{pending}->{delete};
1509     }
1510 }
1511
1512 sub vmconfig_register_unused_drive {
1513     my ($storecfg, $vmid, $conf, $drive) = @_;
1514
1515     if (!drive_is_cdrom($drive)) {
1516         my $volid = $drive->{file};
1517         if (vm_is_volid_owner($storecfg, $vmid, $volid)) {
1518             add_unused_volume($conf, $volid, $vmid);
1519         }
1520     }
1521 }
1522
1523 sub vmconfig_cleanup_pending {
1524     my ($conf) = @_;
1525
1526     # remove pending changes when nothing changed
1527     my $changes;
1528     foreach my $opt (keys %{$conf->{pending}}) {
1529         if (defined($conf->{$opt}) && ($conf->{pending}->{$opt} eq  $conf->{$opt})) {
1530             $changes = 1;
1531             delete $conf->{pending}->{$opt};
1532         }
1533     }
1534
1535     # remove delete if option is not set
1536     my $pending_delete_hash = {};
1537     foreach my $opt (PVE::Tools::split_list($conf->{pending}->{delete})) {
1538         if (defined($conf->{$opt})) {
1539             $pending_delete_hash->{$opt} = 1;
1540         } else {
1541             $changes = 1;
1542         }
1543     }
1544
1545     my @keylist = keys %$pending_delete_hash;
1546     if (scalar(@keylist)) {
1547         $conf->{pending}->{delete} = join(',', @keylist);
1548     } else {
1549         delete $conf->{pending}->{delete};
1550     }
1551
1552     return $changes;
1553 }
1554
1555 my $valid_smbios1_options = {
1556     manufacturer => '\S+',
1557     product => '\S+',
1558     version => '\S+',
1559     serial => '\S+',
1560     uuid => '[a-fA-F0-9]{8}(?:-[a-fA-F0-9]{4}){3}-[a-fA-F0-9]{12}',
1561     sku => '\S+',
1562     family => '\S+',
1563 };
1564
1565 # smbios: [manufacturer=str][,product=str][,version=str][,serial=str][,uuid=uuid][,sku=str][,family=str]
1566 sub parse_smbios1 {
1567     my ($data) = @_;
1568
1569     my $res = {};
1570
1571     foreach my $kvp (split(/,/, $data)) {
1572         return undef if $kvp !~ m/^(\S+)=(.+)$/;
1573         my ($k, $v) = split(/=/, $kvp);
1574         return undef if !defined($k) || !defined($v);
1575         return undef if !$valid_smbios1_options->{$k};
1576         return undef if $v !~ m/^$valid_smbios1_options->{$k}$/;
1577         $res->{$k} = $v;
1578     }
1579
1580     return $res;
1581 }
1582
1583 sub print_smbios1 {
1584     my ($smbios1) = @_;
1585
1586     my $data = '';
1587     foreach my $k (keys %$smbios1) {
1588         next if !defined($smbios1->{$k});
1589         next if !$valid_smbios1_options->{$k};
1590         $data .= ',' if $data;
1591         $data .= "$k=$smbios1->{$k}";
1592     }
1593     return $data;
1594 }
1595
1596 PVE::JSONSchema::register_format('pve-qm-smbios1', \&verify_smbios1);
1597 sub verify_smbios1 {
1598     my ($value, $noerr) = @_;
1599
1600     return $value if parse_smbios1($value);
1601
1602     return undef if $noerr;
1603
1604     die "unable to parse smbios (type 1) options\n";
1605 }
1606
1607 PVE::JSONSchema::register_format('pve-qm-bootdisk', \&verify_bootdisk);
1608 sub verify_bootdisk {
1609     my ($value, $noerr) = @_;
1610
1611     return $value if valid_drivename($value);
1612
1613     return undef if $noerr;
1614
1615     die "invalid boot disk '$value'\n";
1616 }
1617
1618 PVE::JSONSchema::register_format('pve-qm-numanode', \&verify_numa);
1619 sub verify_numa {
1620     my ($value, $noerr) = @_;
1621
1622     return $value if parse_numa($value);
1623
1624     return undef if $noerr;
1625
1626     die "unable to parse numa options\n";
1627 }
1628
1629 PVE::JSONSchema::register_format('pve-qm-net', \&verify_net);
1630 sub verify_net {
1631     my ($value, $noerr) = @_;
1632
1633     return $value if parse_net($value);
1634
1635     return undef if $noerr;
1636
1637     die "unable to parse network options\n";
1638 }
1639
1640 PVE::JSONSchema::register_format('pve-qm-drive', \&verify_drive);
1641 sub verify_drive {
1642     my ($value, $noerr) = @_;
1643
1644     return $value if parse_drive(undef, $value);
1645
1646     return undef if $noerr;
1647
1648     die "unable to parse drive options\n";
1649 }
1650
1651 PVE::JSONSchema::register_format('pve-qm-hostpci', \&verify_hostpci);
1652 sub verify_hostpci {
1653     my ($value, $noerr) = @_;
1654
1655     return $value if parse_hostpci($value);
1656
1657     return undef if $noerr;
1658
1659     die "unable to parse pci id\n";
1660 }
1661
1662 PVE::JSONSchema::register_format('pve-qm-watchdog', \&verify_watchdog);
1663 sub verify_watchdog {
1664     my ($value, $noerr) = @_;
1665
1666     return $value if parse_watchdog($value);
1667
1668     return undef if $noerr;
1669
1670     die "unable to parse watchdog options\n";
1671 }
1672
1673 sub parse_watchdog {
1674     my ($value) = @_;
1675
1676     return undef if !$value;
1677
1678     my $res = {};
1679
1680     foreach my $p (split(/,/, $value)) {
1681         next if $p =~ m/^\s*$/;
1682
1683         if ($p =~ m/^(model=)?(i6300esb|ib700)$/) {
1684             $res->{model} = $2;
1685         } elsif ($p =~ m/^(action=)?(reset|shutdown|poweroff|pause|debug|none)$/) {
1686             $res->{action} = $2;
1687         } else {
1688             return undef;
1689         }
1690     }
1691
1692     return $res;
1693 }
1694
1695 PVE::JSONSchema::register_format('pve-qm-startup', \&verify_startup);
1696 sub verify_startup {
1697     my ($value, $noerr) = @_;
1698
1699     return $value if parse_startup($value);
1700
1701     return undef if $noerr;
1702
1703     die "unable to parse startup options\n";
1704 }
1705
1706 sub parse_startup {
1707     my ($value) = @_;
1708
1709     return undef if !$value;
1710
1711     my $res = {};
1712
1713     foreach my $p (split(/,/, $value)) {
1714         next if $p =~ m/^\s*$/;
1715
1716         if ($p =~ m/^(order=)?(\d+)$/) {
1717             $res->{order} = $2;
1718         } elsif ($p =~ m/^up=(\d+)$/) {
1719             $res->{up} = $1;
1720         } elsif ($p =~ m/^down=(\d+)$/) {
1721             $res->{down} = $1;
1722         } else {
1723             return undef;
1724         }
1725     }
1726
1727     return $res;
1728 }
1729
1730 sub parse_usb_device {
1731     my ($value) = @_;
1732
1733     return undef if !$value;
1734
1735     my @dl = split(/,/, $value);
1736     my $found;
1737
1738     my $res = {};
1739     foreach my $v (@dl) {
1740         if ($v =~ m/^host=(0x)?([0-9A-Fa-f]{4}):(0x)?([0-9A-Fa-f]{4})$/) {
1741             $found = 1;
1742             $res->{vendorid} = $2;
1743             $res->{productid} = $4;
1744         } elsif ($v =~ m/^host=(\d+)\-(\d+(\.\d+)*)$/) {
1745             $found = 1;
1746             $res->{hostbus} = $1;
1747             $res->{hostport} = $2;
1748         } elsif ($v =~ m/^spice$/) {
1749             $found = 1;
1750             $res->{spice} = 1;
1751         } else {
1752             return undef;
1753         }
1754     }
1755     return undef if !$found;
1756
1757     return $res;
1758 }
1759
1760 PVE::JSONSchema::register_format('pve-qm-usb-device', \&verify_usb_device);
1761 sub verify_usb_device {
1762     my ($value, $noerr) = @_;
1763
1764     return $value if parse_usb_device($value);
1765
1766     return undef if $noerr;
1767
1768     die "unable to parse usb device\n";
1769 }
1770
1771 # add JSON properties for create and set function
1772 sub json_config_properties {
1773     my $prop = shift;
1774
1775     foreach my $opt (keys %$confdesc) {
1776         next if $opt eq 'parent' || $opt eq 'snaptime' || $opt eq 'vmstate';
1777         $prop->{$opt} = $confdesc->{$opt};
1778     }
1779
1780     return $prop;
1781 }
1782
1783 sub check_type {
1784     my ($key, $value) = @_;
1785
1786     die "unknown setting '$key'\n" if !$confdesc->{$key};
1787
1788     my $type = $confdesc->{$key}->{type};
1789
1790     if (!defined($value)) {
1791         die "got undefined value\n";
1792     }
1793
1794     if ($value =~ m/[\n\r]/) {
1795         die "property contains a line feed\n";
1796     }
1797
1798     if ($type eq 'boolean') {
1799         return 1 if ($value eq '1') || ($value =~ m/^(on|yes|true)$/i);
1800         return 0 if ($value eq '0') || ($value =~ m/^(off|no|false)$/i);
1801         die "type check ('boolean') failed - got '$value'\n";
1802     } elsif ($type eq 'integer') {
1803         return int($1) if $value =~ m/^(\d+)$/;
1804         die "type check ('integer') failed - got '$value'\n";
1805     } elsif ($type eq 'number') {
1806         return $value if $value =~ m/^(\d+)(\.\d+)?$/;
1807         die "type check ('number') failed - got '$value'\n";
1808     } elsif ($type eq 'string') {
1809         if (my $fmt = $confdesc->{$key}->{format}) {
1810             if ($fmt eq 'pve-qm-drive') {
1811                 # special case - we need to pass $key to parse_drive()
1812                 my $drive = parse_drive($key, $value);
1813                 return $value if $drive;
1814                 die "unable to parse drive options\n";
1815             }
1816             PVE::JSONSchema::check_format($fmt, $value);
1817             return $value;
1818         }
1819         $value =~ s/^\"(.*)\"$/$1/;
1820         return $value;
1821     } else {
1822         die "internal error"
1823     }
1824 }
1825
1826 sub lock_config_full {
1827     my ($vmid, $timeout, $code, @param) = @_;
1828
1829     my $filename = config_file_lock($vmid);
1830
1831     my $res = lock_file($filename, $timeout, $code, @param);
1832
1833     die $@ if $@;
1834
1835     return $res;
1836 }
1837
1838 sub lock_config_mode {
1839     my ($vmid, $timeout, $shared, $code, @param) = @_;
1840
1841     my $filename = config_file_lock($vmid);
1842
1843     my $res = lock_file_full($filename, $timeout, $shared, $code, @param);
1844
1845     die $@ if $@;
1846
1847     return $res;
1848 }
1849
1850 sub lock_config {
1851     my ($vmid, $code, @param) = @_;
1852
1853     return lock_config_full($vmid, 10, $code, @param);
1854 }
1855
1856 sub cfs_config_path {
1857     my ($vmid, $node) = @_;
1858
1859     $node = $nodename if !$node;
1860     return "nodes/$node/qemu-server/$vmid.conf";
1861 }
1862
1863 sub check_iommu_support{
1864     #fixme : need to check IOMMU support
1865     #http://www.linux-kvm.org/page/How_to_assign_devices_with_VT-d_in_KVM
1866
1867     my $iommu=1;
1868     return $iommu;
1869
1870 }
1871
1872 sub config_file {
1873     my ($vmid, $node) = @_;
1874
1875     my $cfspath = cfs_config_path($vmid, $node);
1876     return "/etc/pve/$cfspath";
1877 }
1878
1879 sub config_file_lock {
1880     my ($vmid) = @_;
1881
1882     return "$lock_dir/lock-$vmid.conf";
1883 }
1884
1885 sub touch_config {
1886     my ($vmid) = @_;
1887
1888     my $conf = config_file($vmid);
1889     utime undef, undef, $conf;
1890 }
1891
1892 sub destroy_vm {
1893     my ($storecfg, $vmid, $keep_empty_config) = @_;
1894
1895     my $conffile = config_file($vmid);
1896
1897     my $conf = load_config($vmid);
1898
1899     check_lock($conf);
1900
1901     # only remove disks owned by this VM
1902     foreach_drive($conf, sub {
1903         my ($ds, $drive) = @_;
1904
1905         return if drive_is_cdrom($drive);
1906
1907         my $volid = $drive->{file};
1908
1909         return if !$volid || $volid =~ m|^/|;
1910
1911         my ($path, $owner) = PVE::Storage::path($storecfg, $volid);
1912         return if !$path || !$owner || ($owner != $vmid);
1913
1914         PVE::Storage::vdisk_free($storecfg, $volid);
1915     });
1916
1917     if ($keep_empty_config) {
1918         PVE::Tools::file_set_contents($conffile, "memory: 128\n");
1919     } else {
1920         unlink $conffile;
1921     }
1922
1923     # also remove unused disk
1924     eval {
1925         my $dl = PVE::Storage::vdisk_list($storecfg, undef, $vmid);
1926
1927         eval {
1928             PVE::Storage::foreach_volid($dl, sub {
1929                 my ($volid, $sid, $volname, $d) = @_;
1930                 PVE::Storage::vdisk_free($storecfg, $volid);
1931             });
1932         };
1933         warn $@ if $@;
1934
1935     };
1936     warn $@ if $@;
1937 }
1938
1939 sub load_config {
1940     my ($vmid, $node) = @_;
1941
1942     my $cfspath = cfs_config_path($vmid, $node);
1943
1944     my $conf = PVE::Cluster::cfs_read_file($cfspath);
1945
1946     die "no such VM ('$vmid')\n" if !defined($conf);
1947
1948     return $conf;
1949 }
1950
1951 sub parse_vm_config {
1952     my ($filename, $raw) = @_;
1953
1954     return undef if !defined($raw);
1955
1956     my $res = {
1957         digest => Digest::SHA::sha1_hex($raw),
1958         snapshots => {},
1959         pending => {},
1960     };
1961
1962     $filename =~ m|/qemu-server/(\d+)\.conf$|
1963         || die "got strange filename '$filename'";
1964
1965     my $vmid = $1;
1966
1967     my $conf = $res;
1968     my $descr = '';
1969     my $section = '';
1970
1971     my @lines = split(/\n/, $raw);
1972     foreach my $line (@lines) {
1973         next if $line =~ m/^\s*$/;
1974
1975         if ($line =~ m/^\[PENDING\]\s*$/i) {
1976             $section = 'pending';
1977             $conf->{description} = $descr if $descr;
1978             $descr = '';
1979             $conf = $res->{$section} = {};
1980             next;
1981
1982         } elsif ($line =~ m/^\[([a-z][a-z0-9_\-]+)\]\s*$/i) {
1983             $section = $1;
1984             $conf->{description} = $descr if $descr;
1985             $descr = '';
1986             $conf = $res->{snapshots}->{$section} = {};
1987             next;
1988         }
1989
1990         if ($line =~ m/^\#(.*)\s*$/) {
1991             $descr .= PVE::Tools::decode_text($1) . "\n";
1992             next;
1993         }
1994
1995         if ($line =~ m/^(description):\s*(.*\S)\s*$/) {
1996             $descr .= PVE::Tools::decode_text($2);
1997         } elsif ($line =~ m/snapstate:\s*(prepare|delete)\s*$/) {
1998             $conf->{snapstate} = $1;
1999         } elsif ($line =~ m/^(args):\s*(.*\S)\s*$/) {
2000             my $key = $1;
2001             my $value = $2;
2002             $conf->{$key} = $value;
2003         } elsif ($line =~ m/^delete:\s*(.*\S)\s*$/) {
2004             my $value = $1;
2005             if ($section eq 'pending') {
2006                 $conf->{delete} = $value; # we parse this later
2007             } else {
2008                 warn "vm $vmid - propertry 'delete' is only allowed in [PENDING]\n";
2009             }
2010         } elsif ($line =~ m/^([a-z][a-z_]*\d*):\s*(\S+)\s*$/) {
2011             my $key = $1;
2012             my $value = $2;
2013             eval { $value = check_type($key, $value); };
2014             if ($@) {
2015                 warn "vm $vmid - unable to parse value of '$key' - $@";
2016             } else {
2017                 my $fmt = $confdesc->{$key}->{format};
2018                 if ($fmt && $fmt eq 'pve-qm-drive') {
2019                     my $v = parse_drive($key, $value);
2020                     if (my $volid = filename_to_volume_id($vmid, $v->{file}, $v->{media})) {
2021                         $v->{file} = $volid;
2022                         $value = print_drive($vmid, $v);
2023                     } else {
2024                         warn "vm $vmid - unable to parse value of '$key'\n";
2025                         next;
2026                     }
2027                 }
2028
2029                 if ($key eq 'cdrom') {
2030                     $conf->{ide2} = $value;
2031                 } else {
2032                     $conf->{$key} = $value;
2033                 }
2034             }
2035         }
2036     }
2037
2038     $conf->{description} = $descr if $descr;
2039
2040     delete $res->{snapstate}; # just to be sure
2041
2042     return $res;
2043 }
2044
2045 sub write_vm_config {
2046     my ($filename, $conf) = @_;
2047
2048     delete $conf->{snapstate}; # just to be sure
2049
2050     if ($conf->{cdrom}) {
2051         die "option ide2 conflicts with cdrom\n" if $conf->{ide2};
2052         $conf->{ide2} = $conf->{cdrom};
2053         delete $conf->{cdrom};
2054     }
2055
2056     # we do not use 'smp' any longer
2057     if ($conf->{sockets}) {
2058         delete $conf->{smp};
2059     } elsif ($conf->{smp}) {
2060         $conf->{sockets} = $conf->{smp};
2061         delete $conf->{cores};
2062         delete $conf->{smp};
2063     }
2064
2065     my $used_volids = {};
2066
2067     my $cleanup_config = sub {
2068         my ($cref, $pending, $snapname) = @_;
2069
2070         foreach my $key (keys %$cref) {
2071             next if $key eq 'digest' || $key eq 'description' || $key eq 'snapshots' ||
2072                 $key eq 'snapstate' || $key eq 'pending';
2073             my $value = $cref->{$key};
2074             if ($key eq 'delete') {
2075                 die "propertry 'delete' is only allowed in [PENDING]\n"
2076                     if !$pending;
2077                 # fixme: check syntax?
2078                 next;
2079             }
2080             eval { $value = check_type($key, $value); };
2081             die "unable to parse value of '$key' - $@" if $@;
2082
2083             $cref->{$key} = $value;
2084
2085             if (!$snapname && valid_drivename($key)) {
2086                 my $drive = parse_drive($key, $value);
2087                 $used_volids->{$drive->{file}} = 1 if $drive && $drive->{file};
2088             }
2089         }
2090     };
2091
2092     &$cleanup_config($conf);
2093
2094     &$cleanup_config($conf->{pending}, 1);
2095
2096     foreach my $snapname (keys %{$conf->{snapshots}}) {
2097         die "internal error" if $snapname eq 'pending';
2098         &$cleanup_config($conf->{snapshots}->{$snapname}, undef, $snapname);
2099     }
2100
2101     # remove 'unusedX' settings if we re-add a volume
2102     foreach my $key (keys %$conf) {
2103         my $value = $conf->{$key};
2104         if ($key =~ m/^unused/ && $used_volids->{$value}) {
2105             delete $conf->{$key};
2106         }
2107     }
2108
2109     my $generate_raw_config = sub {
2110         my ($conf) = @_;
2111
2112         my $raw = '';
2113
2114         # add description as comment to top of file
2115         my $descr = $conf->{description} || '';
2116         foreach my $cl (split(/\n/, $descr)) {
2117             $raw .= '#' .  PVE::Tools::encode_text($cl) . "\n";
2118         }
2119
2120         foreach my $key (sort keys %$conf) {
2121             next if $key eq 'digest' || $key eq 'description' || $key eq 'pending' || $key eq 'snapshots';
2122             $raw .= "$key: $conf->{$key}\n";
2123         }
2124         return $raw;
2125     };
2126
2127     my $raw = &$generate_raw_config($conf);
2128
2129     if (scalar(keys %{$conf->{pending}})){
2130         $raw .= "\n[PENDING]\n";
2131         $raw .= &$generate_raw_config($conf->{pending});
2132     }
2133
2134     foreach my $snapname (sort keys %{$conf->{snapshots}}) {
2135         $raw .= "\n[$snapname]\n";
2136         $raw .= &$generate_raw_config($conf->{snapshots}->{$snapname});
2137     }
2138
2139     return $raw;
2140 }
2141
2142 sub update_config_nolock {
2143     my ($vmid, $conf, $skiplock) = @_;
2144
2145     check_lock($conf) if !$skiplock;
2146
2147     my $cfspath = cfs_config_path($vmid);
2148
2149     PVE::Cluster::cfs_write_file($cfspath, $conf);
2150 }
2151
2152 sub update_config {
2153     my ($vmid, $conf, $skiplock) = @_;
2154
2155     lock_config($vmid, &update_config_nolock, $conf, $skiplock);
2156 }
2157
2158 sub load_defaults {
2159
2160     my $res = {};
2161
2162     # we use static defaults from our JSON schema configuration
2163     foreach my $key (keys %$confdesc) {
2164         if (defined(my $default = $confdesc->{$key}->{default})) {
2165             $res->{$key} = $default;
2166         }
2167     }
2168
2169     my $conf = PVE::Cluster::cfs_read_file('datacenter.cfg');
2170     $res->{keyboard} = $conf->{keyboard} if $conf->{keyboard};
2171
2172     return $res;
2173 }
2174
2175 sub config_list {
2176     my $vmlist = PVE::Cluster::get_vmlist();
2177     my $res = {};
2178     return $res if !$vmlist || !$vmlist->{ids};
2179     my $ids = $vmlist->{ids};
2180
2181     foreach my $vmid (keys %$ids) {
2182         my $d = $ids->{$vmid};
2183         next if !$d->{node} || $d->{node} ne $nodename;
2184         next if !$d->{type} || $d->{type} ne 'qemu';
2185         $res->{$vmid}->{exists} = 1;
2186     }
2187     return $res;
2188 }
2189
2190 # test if VM uses local resources (to prevent migration)
2191 sub check_local_resources {
2192     my ($conf, $noerr) = @_;
2193
2194     my $loc_res = 0;
2195
2196     $loc_res = 1 if $conf->{hostusb}; # old syntax
2197     $loc_res = 1 if $conf->{hostpci}; # old syntax
2198
2199     foreach my $k (keys %$conf) {
2200         next if $k =~ m/^usb/ && ($conf->{$k} eq 'spice');
2201         $loc_res = 1 if $k =~ m/^(usb|hostpci|serial|parallel)\d+$/;
2202     }
2203
2204     die "VM uses local resources\n" if $loc_res && !$noerr;
2205
2206     return $loc_res;
2207 }
2208
2209 # check if used storages are available on all nodes (use by migrate)
2210 sub check_storage_availability {
2211     my ($storecfg, $conf, $node) = @_;
2212
2213     foreach_drive($conf, sub {
2214         my ($ds, $drive) = @_;
2215
2216         my $volid = $drive->{file};
2217         return if !$volid;
2218
2219         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
2220         return if !$sid;
2221
2222         # check if storage is available on both nodes
2223         my $scfg = PVE::Storage::storage_check_node($storecfg, $sid);
2224         PVE::Storage::storage_check_node($storecfg, $sid, $node);
2225    });
2226 }
2227
2228 # list nodes where all VM images are available (used by has_feature API)
2229 sub shared_nodes {
2230     my ($conf, $storecfg) = @_;
2231
2232     my $nodelist = PVE::Cluster::get_nodelist();
2233     my $nodehash = { map { $_ => 1 } @$nodelist };
2234     my $nodename = PVE::INotify::nodename();
2235
2236     foreach_drive($conf, sub {
2237         my ($ds, $drive) = @_;
2238
2239         my $volid = $drive->{file};
2240         return if !$volid;
2241
2242         my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
2243         if ($storeid) {
2244             my $scfg = PVE::Storage::storage_config($storecfg, $storeid);
2245             if ($scfg->{disable}) {
2246                 $nodehash = {};
2247             } elsif (my $avail = $scfg->{nodes}) {
2248                 foreach my $node (keys %$nodehash) {
2249                     delete $nodehash->{$node} if !$avail->{$node};
2250                 }
2251             } elsif (!$scfg->{shared}) {
2252                 foreach my $node (keys %$nodehash) {
2253                     delete $nodehash->{$node} if $node ne $nodename
2254                 }
2255             }
2256         }
2257     });
2258
2259     return $nodehash
2260 }
2261
2262 sub check_lock {
2263     my ($conf) = @_;
2264
2265     die "VM is locked ($conf->{lock})\n" if $conf->{lock};
2266 }
2267
2268 sub check_cmdline {
2269     my ($pidfile, $pid) = @_;
2270
2271     my $fh = IO::File->new("/proc/$pid/cmdline", "r");
2272     if (defined($fh)) {
2273         my $line = <$fh>;
2274         $fh->close;
2275         return undef if !$line;
2276         my @param = split(/\0/, $line);
2277
2278         my $cmd = $param[0];
2279         return if !$cmd || ($cmd !~ m|kvm$| && $cmd !~ m|qemu-system-x86_64$|);
2280
2281         for (my $i = 0; $i < scalar (@param); $i++) {
2282             my $p = $param[$i];
2283             next if !$p;
2284             if (($p eq '-pidfile') || ($p eq '--pidfile')) {
2285                 my $p = $param[$i+1];
2286                 return 1 if $p && ($p eq $pidfile);
2287                 return undef;
2288             }
2289         }
2290     }
2291     return undef;
2292 }
2293
2294 sub check_running {
2295     my ($vmid, $nocheck, $node) = @_;
2296
2297     my $filename = config_file($vmid, $node);
2298
2299     die "unable to find configuration file for VM $vmid - no such machine\n"
2300         if !$nocheck && ! -f $filename;
2301
2302     my $pidfile = pidfile_name($vmid);
2303
2304     if (my $fd = IO::File->new("<$pidfile")) {
2305         my $st = stat($fd);
2306         my $line = <$fd>;
2307         close($fd);
2308
2309         my $mtime = $st->mtime;
2310         if ($mtime > time()) {
2311             warn "file '$filename' modified in future\n";
2312         }
2313
2314         if ($line =~ m/^(\d+)$/) {
2315             my $pid = $1;
2316             if (check_cmdline($pidfile, $pid)) {
2317                 if (my $pinfo = PVE::ProcFSTools::check_process_running($pid)) {
2318                     return $pid;
2319                 }
2320             }
2321         }
2322     }
2323
2324     return undef;
2325 }
2326
2327 sub vzlist {
2328
2329     my $vzlist = config_list();
2330
2331     my $fd = IO::Dir->new($var_run_tmpdir) || return $vzlist;
2332
2333     while (defined(my $de = $fd->read)) {
2334         next if $de !~ m/^(\d+)\.pid$/;
2335         my $vmid = $1;
2336         next if !defined($vzlist->{$vmid});
2337         if (my $pid = check_running($vmid)) {
2338             $vzlist->{$vmid}->{pid} = $pid;
2339         }
2340     }
2341
2342     return $vzlist;
2343 }
2344
2345 sub disksize {
2346     my ($storecfg, $conf) = @_;
2347
2348     my $bootdisk = $conf->{bootdisk};
2349     return undef if !$bootdisk;
2350     return undef if !valid_drivename($bootdisk);
2351
2352     return undef if !$conf->{$bootdisk};
2353
2354     my $drive = parse_drive($bootdisk, $conf->{$bootdisk});
2355     return undef if !defined($drive);
2356
2357     return undef if drive_is_cdrom($drive);
2358
2359     my $volid = $drive->{file};
2360     return undef if !$volid;
2361
2362     return $drive->{size};
2363 }
2364
2365 my $last_proc_pid_stat;
2366
2367 # get VM status information
2368 # This must be fast and should not block ($full == false)
2369 # We only query KVM using QMP if $full == true (this can be slow)
2370 sub vmstatus {
2371     my ($opt_vmid, $full) = @_;
2372
2373     my $res = {};
2374
2375     my $storecfg = PVE::Storage::config();
2376
2377     my $list = vzlist();
2378     my ($uptime) = PVE::ProcFSTools::read_proc_uptime(1);
2379
2380     my $cpucount = $cpuinfo->{cpus} || 1;
2381
2382     foreach my $vmid (keys %$list) {
2383         next if $opt_vmid && ($vmid ne $opt_vmid);
2384
2385         my $cfspath = cfs_config_path($vmid);
2386         my $conf = PVE::Cluster::cfs_read_file($cfspath) || {};
2387
2388         my $d = {};
2389         $d->{pid} = $list->{$vmid}->{pid};
2390
2391         # fixme: better status?
2392         $d->{status} = $list->{$vmid}->{pid} ? 'running' : 'stopped';
2393
2394         my $size = disksize($storecfg, $conf);
2395         if (defined($size)) {
2396             $d->{disk} = 0; # no info available
2397             $d->{maxdisk} = $size;
2398         } else {
2399             $d->{disk} = 0;
2400             $d->{maxdisk} = 0;
2401         }
2402
2403         $d->{cpus} = ($conf->{sockets} || 1) * ($conf->{cores} || 1);
2404         $d->{cpus} = $cpucount if $d->{cpus} > $cpucount;
2405         $d->{cpus} = $conf->{vcpus} if $conf->{vcpus};
2406
2407         $d->{name} = $conf->{name} || "VM $vmid";
2408         $d->{maxmem} = $conf->{memory} ? $conf->{memory}*(1024*1024) : 0;
2409
2410         if ($conf->{balloon}) {
2411             $d->{balloon_min} = $conf->{balloon}*(1024*1024);
2412             $d->{shares} = defined($conf->{shares}) ? $conf->{shares} : 1000;
2413         }
2414
2415         $d->{uptime} = 0;
2416         $d->{cpu} = 0;
2417         $d->{mem} = 0;
2418
2419         $d->{netout} = 0;
2420         $d->{netin} = 0;
2421
2422         $d->{diskread} = 0;
2423         $d->{diskwrite} = 0;
2424
2425         $d->{template} = is_template($conf);
2426
2427         $res->{$vmid} = $d;
2428     }
2429
2430     my $netdev = PVE::ProcFSTools::read_proc_net_dev();
2431     foreach my $dev (keys %$netdev) {
2432         next if $dev !~ m/^tap([1-9]\d*)i/;
2433         my $vmid = $1;
2434         my $d = $res->{$vmid};
2435         next if !$d;
2436
2437         $d->{netout} += $netdev->{$dev}->{receive};
2438         $d->{netin} += $netdev->{$dev}->{transmit};
2439     }
2440
2441     my $ctime = gettimeofday;
2442
2443     foreach my $vmid (keys %$list) {
2444
2445         my $d = $res->{$vmid};
2446         my $pid = $d->{pid};
2447         next if !$pid;
2448
2449         my $pstat = PVE::ProcFSTools::read_proc_pid_stat($pid);
2450         next if !$pstat; # not running
2451
2452         my $used = $pstat->{utime} + $pstat->{stime};
2453
2454         $d->{uptime} = int(($uptime - $pstat->{starttime})/$cpuinfo->{user_hz});
2455
2456         if ($pstat->{vsize}) {
2457             $d->{mem} = int(($pstat->{rss}/$pstat->{vsize})*$d->{maxmem});
2458         }
2459
2460         my $old = $last_proc_pid_stat->{$pid};
2461         if (!$old) {
2462             $last_proc_pid_stat->{$pid} = {
2463                 time => $ctime,
2464                 used => $used,
2465                 cpu => 0,
2466             };
2467             next;
2468         }
2469
2470         my $dtime = ($ctime -  $old->{time}) * $cpucount * $cpuinfo->{user_hz};
2471
2472         if ($dtime > 1000) {
2473             my $dutime = $used -  $old->{used};
2474
2475             $d->{cpu} = (($dutime/$dtime)* $cpucount) / $d->{cpus};
2476             $last_proc_pid_stat->{$pid} = {
2477                 time => $ctime,
2478                 used => $used,
2479                 cpu => $d->{cpu},
2480             };
2481         } else {
2482             $d->{cpu} = $old->{cpu};
2483         }
2484     }
2485
2486     return $res if !$full;
2487
2488     my $qmpclient = PVE::QMPClient->new();
2489
2490     my $ballooncb = sub {
2491         my ($vmid, $resp) = @_;
2492
2493         my $info = $resp->{'return'};
2494         return if !$info->{max_mem};
2495
2496         my $d = $res->{$vmid};
2497
2498         # use memory assigned to VM
2499         $d->{maxmem} = $info->{max_mem};
2500         $d->{balloon} = $info->{actual};
2501
2502         if (defined($info->{total_mem}) && defined($info->{free_mem})) {
2503             $d->{mem} = $info->{total_mem} - $info->{free_mem};
2504             $d->{freemem} = $info->{free_mem};
2505         }
2506
2507     };
2508
2509     my $blockstatscb = sub {
2510         my ($vmid, $resp) = @_;
2511         my $data = $resp->{'return'} || [];
2512         my $totalrdbytes = 0;
2513         my $totalwrbytes = 0;
2514         for my $blockstat (@$data) {
2515             $totalrdbytes = $totalrdbytes + $blockstat->{stats}->{rd_bytes};
2516             $totalwrbytes = $totalwrbytes + $blockstat->{stats}->{wr_bytes};
2517         }
2518         $res->{$vmid}->{diskread} = $totalrdbytes;
2519         $res->{$vmid}->{diskwrite} = $totalwrbytes;
2520     };
2521
2522     my $statuscb = sub {
2523         my ($vmid, $resp) = @_;
2524
2525         $qmpclient->queue_cmd($vmid, $blockstatscb, 'query-blockstats');
2526         # this fails if ballon driver is not loaded, so this must be
2527         # the last commnand (following command are aborted if this fails).
2528         $qmpclient->queue_cmd($vmid, $ballooncb, 'query-balloon');
2529
2530         my $status = 'unknown';
2531         if (!defined($status = $resp->{'return'}->{status})) {
2532             warn "unable to get VM status\n";
2533             return;
2534         }
2535
2536         $res->{$vmid}->{qmpstatus} = $resp->{'return'}->{status};
2537     };
2538
2539     foreach my $vmid (keys %$list) {
2540         next if $opt_vmid && ($vmid ne $opt_vmid);
2541         next if !$res->{$vmid}->{pid}; # not running
2542         $qmpclient->queue_cmd($vmid, $statuscb, 'query-status');
2543     }
2544
2545     $qmpclient->queue_execute(undef, 1);
2546
2547     foreach my $vmid (keys %$list) {
2548         next if $opt_vmid && ($vmid ne $opt_vmid);
2549         $res->{$vmid}->{qmpstatus} = $res->{$vmid}->{status} if !$res->{$vmid}->{qmpstatus};
2550     }
2551
2552     return $res;
2553 }
2554
2555 sub foreach_dimm {
2556     my ($conf, $vmid, $memory, $sockets, $func) = @_;
2557
2558     my $dimm_id = 0;
2559     my $current_size = 1024;
2560     my $dimm_size = 512;
2561     return if $current_size == $memory;
2562
2563     for (my $j = 0; $j < 8; $j++) {
2564         for (my $i = 0; $i < 32; $i++) {
2565             my $name = "dimm${dimm_id}";
2566             $dimm_id++;
2567             my $numanode = $i % $sockets;
2568             $current_size += $dimm_size;
2569             &$func($conf, $vmid, $name, $dimm_size, $numanode, $current_size, $memory);
2570             return  $current_size if $current_size >= $memory;
2571         }
2572         $dimm_size *= 2;
2573     }
2574 }
2575
2576 sub foreach_drive {
2577     my ($conf, $func) = @_;
2578
2579     foreach my $ds (keys %$conf) {
2580         next if !valid_drivename($ds);
2581
2582         my $drive = parse_drive($ds, $conf->{$ds});
2583         next if !$drive;
2584
2585         &$func($ds, $drive);
2586     }
2587 }
2588
2589 sub foreach_volid {
2590     my ($conf, $func) = @_;
2591
2592     my $volhash = {};
2593
2594     my $test_volid = sub {
2595         my ($volid, $is_cdrom) = @_;
2596
2597         return if !$volid;
2598
2599         $volhash->{$volid} = $is_cdrom || 0;
2600     };
2601
2602     foreach_drive($conf, sub {
2603         my ($ds, $drive) = @_;
2604         &$test_volid($drive->{file}, drive_is_cdrom($drive));
2605     });
2606
2607     foreach my $snapname (keys %{$conf->{snapshots}}) {
2608         my $snap = $conf->{snapshots}->{$snapname};
2609         &$test_volid($snap->{vmstate}, 0);
2610         foreach_drive($snap, sub {
2611             my ($ds, $drive) = @_;
2612             &$test_volid($drive->{file}, drive_is_cdrom($drive));
2613         });
2614     }
2615
2616     foreach my $volid (keys %$volhash) {
2617         &$func($volid, $volhash->{$volid});
2618     }
2619 }
2620
2621 sub vga_conf_has_spice {
2622     my ($vga) = @_;
2623
2624     return 0 if !$vga || $vga !~ m/^qxl([234])?$/;
2625
2626     return $1 || 1;
2627 }
2628
2629 sub config_to_command {
2630     my ($storecfg, $vmid, $conf, $defaults, $forcemachine) = @_;
2631
2632     my $cmd = [];
2633     my $globalFlags = [];
2634     my $machineFlags = [];
2635     my $rtcFlags = [];
2636     my $cpuFlags = [];
2637     my $devices = [];
2638     my $pciaddr = '';
2639     my $bridges = {};
2640     my $kvmver = kvm_user_version();
2641     my $vernum = 0; # unknown
2642     if ($kvmver =~ m/^(\d+)\.(\d+)$/) {
2643         $vernum = $1*1000000+$2*1000;
2644     } elsif ($kvmver =~ m/^(\d+)\.(\d+)\.(\d+)$/) {
2645         $vernum = $1*1000000+$2*1000+$3;
2646     }
2647
2648     die "detected old qemu-kvm binary ($kvmver)\n" if $vernum < 15000;
2649
2650     my $have_ovz = -f '/proc/vz/vestat';
2651
2652     my $q35 = machine_type_is_q35($conf);
2653     my $hotplug_features = parse_hotplug_features(defined($conf->{hotplug}) ? $conf->{hotplug} : '1');
2654     my $machine_type = $forcemachine || $conf->{machine};
2655
2656     push @$cmd, '/usr/bin/kvm';
2657
2658     push @$cmd, '-id', $vmid;
2659
2660     my $use_virtio = 0;
2661
2662     my $qmpsocket = qmp_socket($vmid);
2663     push @$cmd, '-chardev', "socket,id=qmp,path=$qmpsocket,server,nowait";
2664     push @$cmd, '-mon', "chardev=qmp,mode=control";
2665
2666     my $socket = vnc_socket($vmid);
2667     push @$cmd,  '-vnc', "unix:$socket,x509,password";
2668
2669     push @$cmd, '-pidfile' , pidfile_name($vmid);
2670
2671     push @$cmd, '-daemonize';
2672
2673     if ($conf->{smbios1}) {
2674         push @$cmd, '-smbios', "type=1,$conf->{smbios1}";
2675     }
2676
2677     push @$cmd, '-object', "iothread,id=iothread0" if $conf->{iothread};
2678
2679     if ($q35) {
2680         # the q35 chipset support native usb2, so we enable usb controller
2681         # by default for this machine type
2682         push @$devices, '-readconfig', '/usr/share/qemu-server/pve-q35.cfg';
2683     } else {
2684         $pciaddr = print_pci_addr("piix3", $bridges);
2685         push @$devices, '-device', "piix3-usb-uhci,id=uhci$pciaddr.0x2";
2686
2687         my $use_usb2 = 0;
2688         for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
2689             next if !$conf->{"usb$i"};
2690             $use_usb2 = 1;
2691         }
2692         # include usb device config
2693         push @$devices, '-readconfig', '/usr/share/qemu-server/pve-usb.cfg' if $use_usb2;
2694     }
2695
2696     my $vga = $conf->{vga};
2697
2698     my $qxlnum = vga_conf_has_spice($vga);
2699     $vga = 'qxl' if $qxlnum;
2700
2701     if (!$vga) {
2702         if ($conf->{ostype} && ($conf->{ostype} eq 'win8' ||
2703                                 $conf->{ostype} eq 'win7' ||
2704                                 $conf->{ostype} eq 'w2k8')) {
2705             $vga = 'std';
2706         } else {
2707             $vga = 'cirrus';
2708         }
2709     }
2710
2711     # enable absolute mouse coordinates (needed by vnc)
2712     my $tablet;
2713     if (defined($conf->{tablet})) {
2714         $tablet = $conf->{tablet};
2715     } else {
2716         $tablet = $defaults->{tablet};
2717         $tablet = 0 if $qxlnum; # disable for spice because it is not needed
2718         $tablet = 0 if $vga =~ m/^serial\d+$/; # disable if we use serial terminal (no vga card)
2719     }
2720
2721     push @$devices, '-device', print_tabletdevice_full($conf) if $tablet;
2722
2723     # host pci devices
2724     for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
2725         my $d = parse_hostpci($conf->{"hostpci$i"});
2726         next if !$d;
2727
2728         my $pcie = $d->{pcie};
2729         if($pcie){
2730             die "q35 machine model is not enabled" if !$q35;
2731             $pciaddr = print_pcie_addr("hostpci$i");
2732         }else{
2733             $pciaddr = print_pci_addr("hostpci$i", $bridges);
2734         }
2735
2736         my $rombar = $d->{rombar} && $d->{rombar} eq 'off' ? ",rombar=0" : "";
2737         my $driver = $d->{driver} && $d->{driver} eq 'vfio' ? "vfio-pci" : "pci-assign";
2738         my $xvga = $d->{'x-vga'} && $d->{'x-vga'} eq 'on' ? ",x-vga=on" : "";
2739         if ($xvga && $xvga ne '') {
2740             push @$cpuFlags, 'kvm=off';
2741             $vga = 'none';
2742         }
2743         $driver = "vfio-pci" if $xvga ne '';
2744         my $pcidevices = $d->{pciid};
2745         my $multifunction = 1 if @$pcidevices > 1;
2746
2747         my $j=0;
2748         foreach my $pcidevice (@$pcidevices) {
2749
2750             my $id = "hostpci$i";
2751             $id .= ".$j" if $multifunction;
2752             my $addr = $pciaddr;
2753             $addr .= ".$j" if $multifunction;
2754             my $devicestr = "$driver,host=$pcidevice->{id}.$pcidevice->{function},id=$id$addr";
2755
2756             if($j == 0){
2757                 $devicestr .= "$rombar$xvga";
2758                 $devicestr .= ",multifunction=on" if $multifunction;
2759             }
2760
2761             push @$devices, '-device', $devicestr;
2762             $j++;
2763         }
2764     }
2765
2766     # usb devices
2767     for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
2768         my $d = parse_usb_device($conf->{"usb$i"});
2769         next if !$d;
2770         if ($d->{vendorid} && $d->{productid}) {
2771             push @$devices, '-device', "usb-host,vendorid=0x$d->{vendorid},productid=0x$d->{productid}";
2772         } elsif (defined($d->{hostbus}) && defined($d->{hostport})) {
2773             push @$devices, '-device', "usb-host,hostbus=$d->{hostbus},hostport=$d->{hostport}";
2774         } elsif ($d->{spice}) {
2775             # usb redir support for spice
2776             push @$devices, '-chardev', "spicevmc,id=usbredirchardev$i,name=usbredir";
2777             push @$devices, '-device', "usb-redir,chardev=usbredirchardev$i,id=usbredirdev$i,bus=ehci.0";
2778         }
2779     }
2780
2781     # serial devices
2782     for (my $i = 0; $i < $MAX_SERIAL_PORTS; $i++)  {
2783         if (my $path = $conf->{"serial$i"}) {
2784             if ($path eq 'socket') {
2785                 my $socket = "/var/run/qemu-server/${vmid}.serial$i";
2786                 push @$devices, '-chardev', "socket,id=serial$i,path=$socket,server,nowait";
2787                 push @$devices, '-device', "isa-serial,chardev=serial$i";
2788             } else {
2789                 die "no such serial device\n" if ! -c $path;
2790                 push @$devices, '-chardev', "tty,id=serial$i,path=$path";
2791                 push @$devices, '-device', "isa-serial,chardev=serial$i";
2792             }
2793         }
2794     }
2795
2796     # parallel devices
2797     for (my $i = 0; $i < $MAX_PARALLEL_PORTS; $i++)  {
2798         if (my $path = $conf->{"parallel$i"}) {
2799             die "no such parallel device\n" if ! -c $path;
2800             my $devtype = $path =~ m!^/dev/usb/lp! ? 'tty' : 'parport';
2801             push @$devices, '-chardev', "$devtype,id=parallel$i,path=$path";
2802             push @$devices, '-device', "isa-parallel,chardev=parallel$i";
2803         }
2804     }
2805
2806     my $vmname = $conf->{name} || "vm$vmid";
2807
2808     push @$cmd, '-name', $vmname;
2809
2810     my $sockets = 1;
2811     $sockets = $conf->{smp} if $conf->{smp}; # old style - no longer iused
2812     $sockets = $conf->{sockets} if  $conf->{sockets};
2813
2814     my $cores = $conf->{cores} || 1;
2815
2816     my $maxcpus = $sockets * $cores;
2817
2818     my $vcpus = $conf->{vcpus} ? $conf->{vcpus} : $maxcpus;
2819
2820     my $allowed_vcpus = $cpuinfo->{cpus};
2821
2822     die "MAX $maxcpus vcpus allowed per VM on this node\n"
2823         if ($allowed_vcpus < $maxcpus);
2824
2825     push @$cmd, '-smp', "$vcpus,sockets=$sockets,cores=$cores,maxcpus=$maxcpus";
2826
2827     push @$cmd, '-nodefaults';
2828
2829     my $bootorder = $conf->{boot} || $confdesc->{boot}->{default};
2830
2831     my $bootindex_hash = {};
2832     my $i = 1;
2833     foreach my $o (split(//, $bootorder)) {
2834         $bootindex_hash->{$o} = $i*100;
2835         $i++;
2836     }
2837
2838     push @$cmd, '-boot', "menu=on,strict=on,reboot-timeout=1000";
2839
2840     push @$cmd, '-no-acpi' if defined($conf->{acpi}) && $conf->{acpi} == 0;
2841
2842     push @$cmd, '-no-reboot' if  defined($conf->{reboot}) && $conf->{reboot} == 0;
2843
2844     push @$cmd, '-vga', $vga if $vga && $vga !~ m/^serial\d+$/; # for kvm 77 and later
2845
2846     # time drift fix
2847     my $tdf = defined($conf->{tdf}) ? $conf->{tdf} : $defaults->{tdf};
2848
2849     my $nokvm = defined($conf->{kvm}) && $conf->{kvm} == 0 ? 1 : 0;
2850     my $useLocaltime = $conf->{localtime};
2851
2852     if (my $ost = $conf->{ostype}) {
2853         # other, wxp, w2k, w2k3, w2k8, wvista, win7, win8, l24, l26, solaris
2854
2855         if ($ost =~ m/^w/) { # windows
2856             $useLocaltime = 1 if !defined($conf->{localtime});
2857
2858             # use time drift fix when acpi is enabled
2859             if (!(defined($conf->{acpi}) && $conf->{acpi} == 0)) {
2860                 $tdf = 1 if !defined($conf->{tdf});
2861             }
2862         }
2863
2864         if ($ost eq 'win7' || $ost eq 'win8' || $ost eq 'w2k8' ||
2865             $ost eq 'wvista') {
2866             push @$globalFlags, 'kvm-pit.lost_tick_policy=discard';
2867             push @$cmd, '-no-hpet';
2868             if (qemu_machine_feature_enabled ($machine_type, $kvmver, 2, 3)) {
2869                 push @$cpuFlags , 'hv_spinlocks=0x1fff' if !$nokvm;
2870                 push @$cpuFlags , 'hv_vapic' if !$nokvm;
2871                 push @$cpuFlags , 'hv_time' if !$nokvm;
2872
2873             } else {
2874                 push @$cpuFlags , 'hv_spinlocks=0xffff' if !$nokvm;
2875             }
2876         }
2877
2878         if ($ost eq 'win7' || $ost eq 'win8') {
2879             push @$cpuFlags , 'hv_relaxed' if !$nokvm;
2880         }
2881     }
2882
2883     push @$rtcFlags, 'driftfix=slew' if $tdf;
2884
2885     if ($nokvm) {
2886         push @$machineFlags, 'accel=tcg';
2887     } else {
2888         die "No accelerator found!\n" if !$cpuinfo->{hvm};
2889     }
2890
2891     if ($machine_type) {
2892         push @$machineFlags, "type=${machine_type}";
2893     }
2894
2895     if ($conf->{startdate}) {
2896         push @$rtcFlags, "base=$conf->{startdate}";
2897     } elsif ($useLocaltime) {
2898         push @$rtcFlags, 'base=localtime';
2899     }
2900
2901     my $cpu = $nokvm ? "qemu64" : "kvm64";
2902     $cpu = $conf->{cpu} if $conf->{cpu};
2903
2904     push @$cpuFlags , '+lahf_lm' if $cpu eq 'kvm64';
2905
2906     push @$cpuFlags , '+x2apic' if !$nokvm && $conf->{ostype} ne 'solaris';
2907
2908     push @$cpuFlags , '-x2apic' if $conf->{ostype} eq 'solaris';
2909
2910     push @$cpuFlags, '+sep' if $cpu eq 'kvm64' || $cpu eq 'kvm32';
2911
2912     if (qemu_machine_feature_enabled ($machine_type, $kvmver, 2, 3)) {
2913
2914         push @$cpuFlags , '+kvm_pv_unhalt' if !$nokvm;
2915         push @$cpuFlags , '+kvm_pv_eoi' if !$nokvm;
2916     }
2917
2918     $cpu .= "," . join(',', @$cpuFlags) if scalar(@$cpuFlags);
2919
2920     push @$cmd, '-cpu', "$cpu,enforce";
2921
2922     my $memory = $conf->{memory} || $defaults->{memory};
2923     my $static_memory = 0;
2924     my $dimm_memory = 0;
2925
2926     if ($hotplug_features->{memory}) {
2927         die "Numa need to be enabled for memory hotplug\n" if !$conf->{numa};
2928         die "Total memory is bigger than ${MAX_MEM}MB\n" if $memory > $MAX_MEM;
2929         $static_memory = $STATICMEM;
2930         die "minimum memory must be ${static_memory}MB\n" if($memory < $static_memory);
2931         $dimm_memory = $memory - $static_memory;
2932         push @$cmd, '-m', "size=${static_memory},slots=255,maxmem=${MAX_MEM}M";
2933
2934     } else {
2935
2936         $static_memory = $memory;
2937         push @$cmd, '-m', $static_memory;
2938     }
2939
2940     if ($conf->{numa}) {
2941
2942         my $numa_totalmemory = undef;
2943         for (my $i = 0; $i < $MAX_NUMA; $i++) {
2944             next if !$conf->{"numa$i"};
2945             my $numa = parse_numa($conf->{"numa$i"});
2946             next if !$numa;
2947             # memory
2948             die "missing numa node$i memory value\n" if !$numa->{memory};
2949             my $numa_memory = $numa->{memory};
2950             $numa_totalmemory += $numa_memory;
2951             my $numa_object = "memory-backend-ram,id=ram-node$i,size=${numa_memory}M";
2952
2953             # cpus
2954             my $cpus_start = $numa->{cpus}->{start};
2955             die "missing numa node$i cpus\n" if !defined($cpus_start);
2956             my $cpus_end = $numa->{cpus}->{end} if defined($numa->{cpus}->{end});
2957             my $cpus = $cpus_start;
2958             if (defined($cpus_end)) {
2959                 $cpus .= "-$cpus_end";
2960                 die "numa node$i :  cpu range $cpus is incorrect\n" if $cpus_end <= $cpus_start;
2961             }
2962
2963             # hostnodes
2964             my $hostnodes_start = $numa->{hostnodes}->{start};
2965             if (defined($hostnodes_start)) {
2966                 my $hostnodes_end = $numa->{hostnodes}->{end} if defined($numa->{hostnodes}->{end});
2967                 my $hostnodes = $hostnodes_start;
2968                 if (defined($hostnodes_end)) {
2969                     $hostnodes .= "-$hostnodes_end";
2970                     die "host node $hostnodes range is incorrect\n" if $hostnodes_end <= $hostnodes_start;
2971                 }
2972
2973                 my $hostnodes_end_range = defined($hostnodes_end) ? $hostnodes_end : $hostnodes_start;
2974                 for (my $i = $hostnodes_start; $i <= $hostnodes_end_range; $i++ ) {
2975                     die "host numa node$i don't exist\n" if ! -d "/sys/devices/system/node/node$i/";
2976                 }
2977
2978                 # policy
2979                 my $policy = $numa->{policy};
2980                 die "you need to define a policy for hostnode $hostnodes\n" if !$policy;
2981                 $numa_object .= ",host-nodes=$hostnodes,policy=$policy";
2982             }
2983
2984             push @$cmd, '-object', $numa_object;
2985             push @$cmd, '-numa', "node,nodeid=$i,cpus=$cpus,memdev=ram-node$i";
2986         }
2987
2988         die "total memory for NUMA nodes must be equal to vm static memory\n"
2989             if $numa_totalmemory && $numa_totalmemory != $static_memory;
2990
2991         #if no custom tology, we split memory and cores across numa nodes
2992         if(!$numa_totalmemory) {
2993
2994             my $numa_memory = ($static_memory / $sockets) . "M";
2995
2996             for (my $i = 0; $i < $sockets; $i++)  {
2997
2998                 my $cpustart = ($cores * $i);
2999                 my $cpuend = ($cpustart + $cores - 1) if $cores && $cores > 1;
3000                 my $cpus = $cpustart;
3001                 $cpus .= "-$cpuend" if $cpuend;
3002
3003                 push @$cmd, '-object', "memory-backend-ram,size=$numa_memory,id=ram-node$i";
3004                 push @$cmd, '-numa', "node,nodeid=$i,cpus=$cpus,memdev=ram-node$i";
3005             }
3006         }
3007     }
3008
3009     if ($hotplug_features->{memory}) {
3010         foreach_dimm($conf, $vmid, $memory, $sockets, sub {
3011             my ($conf, $vmid, $name, $dimm_size, $numanode, $current_size, $memory) = @_;
3012             push @$cmd, "-object" , "memory-backend-ram,id=mem-$name,size=${dimm_size}M";
3013             push @$cmd, "-device", "pc-dimm,id=$name,memdev=mem-$name,node=$numanode";
3014
3015             #if dimm_memory is not aligned to dimm map
3016             if($current_size > $memory) {
3017                  $conf->{memory} = $current_size;
3018                  update_config_nolock($vmid, $conf, 1);
3019             }
3020         });
3021     }
3022
3023     push @$cmd, '-S' if $conf->{freeze};
3024
3025     # set keyboard layout
3026     my $kb = $conf->{keyboard} || $defaults->{keyboard};
3027     push @$cmd, '-k', $kb if $kb;
3028
3029     # enable sound
3030     #my $soundhw = $conf->{soundhw} || $defaults->{soundhw};
3031     #push @$cmd, '-soundhw', 'es1370';
3032     #push @$cmd, '-soundhw', $soundhw if $soundhw;
3033
3034     if($conf->{agent}) {
3035         my $qgasocket = qmp_socket($vmid, 1);
3036         my $pciaddr = print_pci_addr("qga0", $bridges);
3037         push @$devices, '-chardev', "socket,path=$qgasocket,server,nowait,id=qga0";
3038         push @$devices, '-device', "virtio-serial,id=qga0$pciaddr";
3039         push @$devices, '-device', 'virtserialport,chardev=qga0,name=org.qemu.guest_agent.0';
3040     }
3041
3042     my $spice_port;
3043
3044     if ($qxlnum) {
3045         if ($qxlnum > 1) {
3046             if ($conf->{ostype} && $conf->{ostype} =~ m/^w/){
3047                 for(my $i = 1; $i < $qxlnum; $i++){
3048                     my $pciaddr = print_pci_addr("vga$i", $bridges);
3049                     push @$cmd, '-device', "qxl,id=vga$i,ram_size=67108864,vram_size=33554432$pciaddr";
3050                 }
3051             } else {
3052                 # assume other OS works like Linux
3053                 push @$cmd, '-global', 'qxl-vga.ram_size=134217728';
3054                 push @$cmd, '-global', 'qxl-vga.vram_size=67108864';
3055             }
3056         }
3057
3058         my $pciaddr = print_pci_addr("spice", $bridges);
3059
3060         $spice_port = PVE::Tools::next_spice_port();
3061
3062         push @$devices, '-spice', "tls-port=${spice_port},addr=127.0.0.1,tls-ciphers=DES-CBC3-SHA,seamless-migration=on";
3063
3064         push @$devices, '-device', "virtio-serial,id=spice$pciaddr";
3065         push @$devices, '-chardev', "spicevmc,id=vdagent,name=vdagent";
3066         push @$devices, '-device', "virtserialport,chardev=vdagent,name=com.redhat.spice.0";
3067     }
3068
3069     # enable balloon by default, unless explicitly disabled
3070     if (!defined($conf->{balloon}) || $conf->{balloon}) {
3071         $pciaddr = print_pci_addr("balloon0", $bridges);
3072         push @$devices, '-device', "virtio-balloon-pci,id=balloon0$pciaddr";
3073     }
3074
3075     if ($conf->{watchdog}) {
3076         my $wdopts = parse_watchdog($conf->{watchdog});
3077         $pciaddr = print_pci_addr("watchdog", $bridges);
3078         my $watchdog = $wdopts->{model} || 'i6300esb';
3079         push @$devices, '-device', "$watchdog$pciaddr";
3080         push @$devices, '-watchdog-action', $wdopts->{action} if $wdopts->{action};
3081     }
3082
3083     my $vollist = [];
3084     my $scsicontroller = {};
3085     my $ahcicontroller = {};
3086     my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : $defaults->{scsihw};
3087
3088     # Add iscsi initiator name if available
3089     if (my $initiator = get_initiator_name()) {
3090         push @$devices, '-iscsi', "initiator-name=$initiator";
3091     }
3092
3093     foreach_drive($conf, sub {
3094         my ($ds, $drive) = @_;
3095
3096         if (PVE::Storage::parse_volume_id($drive->{file}, 1)) {
3097             push @$vollist, $drive->{file};
3098         }
3099
3100         $use_virtio = 1 if $ds =~ m/^virtio/;
3101
3102         if (drive_is_cdrom ($drive)) {
3103             if ($bootindex_hash->{d}) {
3104                 $drive->{bootindex} = $bootindex_hash->{d};
3105                 $bootindex_hash->{d} += 1;
3106             }
3107         } else {
3108             if ($bootindex_hash->{c}) {
3109                 $drive->{bootindex} = $bootindex_hash->{c} if $conf->{bootdisk} && ($conf->{bootdisk} eq $ds);
3110                 $bootindex_hash->{c} += 1;
3111             }
3112         }
3113
3114         if ($drive->{interface} eq 'scsi') {
3115
3116             my $maxdev = ($scsihw !~ m/^lsi/) ? 256 : 7;
3117             my $controller = int($drive->{index} / $maxdev);
3118             $pciaddr = print_pci_addr("scsihw$controller", $bridges);
3119             push @$devices, '-device', "$scsihw,id=scsihw$controller$pciaddr" if !$scsicontroller->{$controller};
3120             $scsicontroller->{$controller}=1;
3121         }
3122
3123         if ($drive->{interface} eq 'sata') {
3124            my $controller = int($drive->{index} / $MAX_SATA_DISKS);
3125            $pciaddr = print_pci_addr("ahci$controller", $bridges);
3126            push @$devices, '-device', "ahci,id=ahci$controller,multifunction=on$pciaddr" if !$ahcicontroller->{$controller};
3127            $ahcicontroller->{$controller}=1;
3128         }
3129
3130         my $drive_cmd = print_drive_full($storecfg, $vmid, $drive);
3131         push @$devices, '-drive',$drive_cmd;
3132         push @$devices, '-device', print_drivedevice_full($storecfg, $conf, $vmid, $drive, $bridges);
3133     });
3134
3135     for (my $i = 0; $i < $MAX_NETS; $i++) {
3136          next if !$conf->{"net$i"};
3137          my $d = parse_net($conf->{"net$i"});
3138          next if !$d;
3139
3140          $use_virtio = 1 if $d->{model} eq 'virtio';
3141
3142          if ($bootindex_hash->{n}) {
3143             $d->{bootindex} = $bootindex_hash->{n};
3144             $bootindex_hash->{n} += 1;
3145          }
3146
3147          my $netdevfull = print_netdev_full($vmid,$conf,$d,"net$i");
3148          push @$devices, '-netdev', $netdevfull;
3149
3150          my $netdevicefull = print_netdevice_full($vmid,$conf,$d,"net$i",$bridges);
3151          push @$devices, '-device', $netdevicefull;
3152     }
3153
3154     if (!$q35) {
3155         # add pci bridges
3156         if (qemu_machine_feature_enabled ($machine_type, $kvmver, 2, 3)) {
3157            $bridges->{1} = 1;
3158            $bridges->{2} = 1;
3159         }
3160
3161         while (my ($k, $v) = each %$bridges) {
3162             $pciaddr = print_pci_addr("pci.$k");
3163             unshift @$devices, '-device', "pci-bridge,id=pci.$k,chassis_nr=$k$pciaddr" if $k > 0;
3164         }
3165     }
3166
3167     # hack: virtio with fairsched is unreliable, so we do not use fairsched
3168     # when the VM uses virtio devices.
3169     if (!$use_virtio && $have_ovz) {
3170
3171         my $cpuunits = defined($conf->{cpuunits}) ?
3172             $conf->{cpuunits} : $defaults->{cpuunits};
3173
3174         push @$cmd, '-cpuunits', $cpuunits if $cpuunits;
3175
3176         # fixme: cpulimit is currently ignored
3177         #push @$cmd, '-cpulimit', $conf->{cpulimit} if $conf->{cpulimit};
3178     }
3179
3180     # add custom args
3181     if ($conf->{args}) {
3182         my $aa = PVE::Tools::split_args($conf->{args});
3183         push @$cmd, @$aa;
3184     }
3185
3186     push @$cmd, @$devices;
3187     push @$cmd, '-rtc', join(',', @$rtcFlags)
3188         if scalar(@$rtcFlags);
3189     push @$cmd, '-machine', join(',', @$machineFlags)
3190         if scalar(@$machineFlags);
3191     push @$cmd, '-global', join(',', @$globalFlags)
3192         if scalar(@$globalFlags);
3193
3194     return wantarray ? ($cmd, $vollist, $spice_port) : $cmd;
3195 }
3196
3197 sub vnc_socket {
3198     my ($vmid) = @_;
3199     return "${var_run_tmpdir}/$vmid.vnc";
3200 }
3201
3202 sub spice_port {
3203     my ($vmid) = @_;
3204
3205     my $res = vm_mon_cmd($vmid, 'query-spice');
3206
3207     return $res->{'tls-port'} || $res->{'port'} || die "no spice port\n";
3208 }
3209
3210 sub qmp_socket {
3211     my ($vmid, $qga) = @_;
3212     my $sockettype = $qga ? 'qga' : 'qmp';
3213     return "${var_run_tmpdir}/$vmid.$sockettype";
3214 }
3215
3216 sub pidfile_name {
3217     my ($vmid) = @_;
3218     return "${var_run_tmpdir}/$vmid.pid";
3219 }
3220
3221 sub vm_devices_list {
3222     my ($vmid) = @_;
3223
3224     my $res = vm_mon_cmd($vmid, 'query-pci');
3225     my $devices = {};
3226     foreach my $pcibus (@$res) {
3227         foreach my $device (@{$pcibus->{devices}}) {
3228             next if !$device->{'qdev_id'};
3229             if ($device->{'pci_bridge'}) {
3230                 $devices->{$device->{'qdev_id'}} = 1;
3231                 foreach my $bridge_device (@{$device->{'pci_bridge'}->{devices}}) {
3232                     next if !$bridge_device->{'qdev_id'};
3233                     $devices->{$bridge_device->{'qdev_id'}} = 1;
3234                     $devices->{$device->{'qdev_id'}}++;
3235                 }
3236             } else {
3237                 $devices->{$device->{'qdev_id'}} = 1;
3238             }
3239         }
3240     }
3241
3242     my $resblock = vm_mon_cmd($vmid, 'query-block');
3243     foreach my $block (@$resblock) {
3244         if($block->{device} =~ m/^drive-(\S+)/){
3245                 $devices->{$1} = 1;
3246         }
3247     }
3248
3249     my $resmice = vm_mon_cmd($vmid, 'query-mice');
3250     foreach my $mice (@$resmice) {
3251         if ($mice->{name} eq 'QEMU HID Tablet') {
3252             $devices->{tablet} = 1;
3253             last;
3254         }
3255     }
3256
3257     return $devices;
3258 }
3259
3260 sub vm_deviceplug {
3261     my ($storecfg, $conf, $vmid, $deviceid, $device) = @_;
3262
3263     my $q35 = machine_type_is_q35($conf);
3264
3265     my $devices_list = vm_devices_list($vmid);
3266     return 1 if defined($devices_list->{$deviceid});
3267
3268     qemu_add_pci_bridge($storecfg, $conf, $vmid, $deviceid); # add PCI bridge if we need it for the device
3269
3270     if ($deviceid eq 'tablet') {
3271
3272         qemu_deviceadd($vmid, print_tabletdevice_full($conf));
3273
3274     } elsif ($deviceid =~ m/^(virtio)(\d+)$/) {
3275
3276         qemu_driveadd($storecfg, $vmid, $device);
3277         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
3278
3279         qemu_deviceadd($vmid, $devicefull);
3280         eval { qemu_deviceaddverify($vmid, $deviceid); };
3281         if (my $err = $@) {
3282             eval { qemu_drivedel($vmid, $deviceid); };
3283             warn $@ if $@;
3284             die $err;
3285         }
3286
3287     } elsif ($deviceid =~ m/^(scsihw)(\d+)$/) {
3288
3289         my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : "lsi";
3290         my $pciaddr = print_pci_addr($deviceid);
3291         my $devicefull = "$scsihw,id=$deviceid$pciaddr";
3292
3293         qemu_deviceadd($vmid, $devicefull);
3294         qemu_deviceaddverify($vmid, $deviceid);
3295
3296     } elsif ($deviceid =~ m/^(scsi)(\d+)$/) {
3297
3298         qemu_findorcreatescsihw($storecfg,$conf, $vmid, $device);
3299         qemu_driveadd($storecfg, $vmid, $device);
3300
3301         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
3302         eval { qemu_deviceadd($vmid, $devicefull); };
3303         if (my $err = $@) {
3304             eval { qemu_drivedel($vmid, $deviceid); };
3305             warn $@ if $@;
3306             die $err;
3307         }
3308
3309     } elsif ($deviceid =~ m/^(net)(\d+)$/) {
3310
3311         return undef if !qemu_netdevadd($vmid, $conf, $device, $deviceid);
3312         my $netdevicefull = print_netdevice_full($vmid, $conf, $device, $deviceid);
3313         qemu_deviceadd($vmid, $netdevicefull);
3314         eval { qemu_deviceaddverify($vmid, $deviceid); };
3315         if (my $err = $@) {
3316             eval { qemu_netdevdel($vmid, $deviceid); };
3317             warn $@ if $@;
3318             die $err;
3319         }
3320
3321     } elsif (!$q35 && $deviceid =~ m/^(pci\.)(\d+)$/) {
3322
3323         my $bridgeid = $2;
3324         my $pciaddr = print_pci_addr($deviceid);
3325         my $devicefull = "pci-bridge,id=pci.$bridgeid,chassis_nr=$bridgeid$pciaddr";
3326
3327         qemu_deviceadd($vmid, $devicefull);
3328         qemu_deviceaddverify($vmid, $deviceid);
3329
3330     } else {
3331         die "can't hotplug device '$deviceid'\n";
3332     }
3333
3334     return 1;
3335 }
3336
3337 # fixme: this should raise exceptions on error!
3338 sub vm_deviceunplug {
3339     my ($vmid, $conf, $deviceid) = @_;
3340
3341     my $devices_list = vm_devices_list($vmid);
3342     return 1 if !defined($devices_list->{$deviceid});
3343
3344     die "can't unplug bootdisk" if $conf->{bootdisk} && $conf->{bootdisk} eq $deviceid;
3345
3346     if ($deviceid eq 'tablet') {
3347
3348         qemu_devicedel($vmid, $deviceid);
3349
3350     } elsif ($deviceid =~ m/^(virtio)(\d+)$/) {
3351
3352         qemu_devicedel($vmid, $deviceid);
3353         qemu_devicedelverify($vmid, $deviceid);
3354         qemu_drivedel($vmid, $deviceid);
3355
3356     } elsif ($deviceid =~ m/^(lsi)(\d+)$/) {
3357
3358         qemu_devicedel($vmid, $deviceid);
3359
3360     } elsif ($deviceid =~ m/^(scsi)(\d+)$/) {
3361
3362         qemu_devicedel($vmid, $deviceid);
3363         qemu_drivedel($vmid, $deviceid);
3364
3365     } elsif ($deviceid =~ m/^(net)(\d+)$/) {
3366
3367         qemu_devicedel($vmid, $deviceid);
3368         qemu_devicedelverify($vmid, $deviceid);
3369         qemu_netdevdel($vmid, $deviceid);
3370
3371     } else {
3372         die "can't unplug device '$deviceid'\n";
3373     }
3374
3375     return 1;
3376 }
3377
3378 sub qemu_deviceadd {
3379     my ($vmid, $devicefull) = @_;
3380
3381     $devicefull = "driver=".$devicefull;
3382     my %options =  split(/[=,]/, $devicefull);
3383
3384     vm_mon_cmd($vmid, "device_add" , %options);
3385 }
3386
3387 sub qemu_devicedel {
3388     my ($vmid, $deviceid) = @_;
3389
3390     my $ret = vm_mon_cmd($vmid, "device_del", id => $deviceid);
3391 }
3392
3393 sub qemu_objectadd {
3394     my($vmid, $objectid, $qomtype) = @_;
3395
3396     vm_mon_cmd($vmid, "object-add", id => $objectid, "qom-type" => $qomtype);
3397
3398     return 1;
3399 }
3400
3401 sub qemu_objectdel {
3402     my($vmid, $objectid) = @_;
3403
3404     vm_mon_cmd($vmid, "object-del", id => $objectid);
3405
3406     return 1;
3407 }
3408
3409 sub qemu_driveadd {
3410     my ($storecfg, $vmid, $device) = @_;
3411
3412     my $drive = print_drive_full($storecfg, $vmid, $device);
3413     $drive =~ s/\\/\\\\/g;
3414     my $ret = vm_human_monitor_command($vmid, "drive_add auto \"$drive\"");
3415
3416     # If the command succeeds qemu prints: "OK"
3417     return 1 if $ret =~ m/OK/s;
3418
3419     die "adding drive failed: $ret\n";
3420 }
3421
3422 sub qemu_drivedel {
3423     my($vmid, $deviceid) = @_;
3424
3425     my $ret = vm_human_monitor_command($vmid, "drive_del drive-$deviceid");
3426     $ret =~ s/^\s+//;
3427
3428     return 1 if $ret eq "";
3429
3430     # NB: device not found errors mean the drive was auto-deleted and we ignore the error
3431     return 1 if $ret =~ m/Device \'.*?\' not found/s;
3432
3433     die "deleting drive $deviceid failed : $ret\n";
3434 }
3435
3436 sub qemu_deviceaddverify {
3437     my ($vmid, $deviceid) = @_;
3438
3439     for (my $i = 0; $i <= 5; $i++) {
3440          my $devices_list = vm_devices_list($vmid);
3441          return 1 if defined($devices_list->{$deviceid});
3442          sleep 1;
3443     }
3444
3445     die "error on hotplug device '$deviceid'\n";
3446 }
3447
3448
3449 sub qemu_devicedelverify {
3450     my ($vmid, $deviceid) = @_;
3451
3452     # need to verify that the device is correctly removed as device_del
3453     # is async and empty return is not reliable
3454
3455     for (my $i = 0; $i <= 5; $i++) {
3456          my $devices_list = vm_devices_list($vmid);
3457          return 1 if !defined($devices_list->{$deviceid});
3458          sleep 1;
3459     }
3460
3461     die "error on hot-unplugging device '$deviceid'\n";
3462 }
3463
3464 sub qemu_findorcreatescsihw {
3465     my ($storecfg, $conf, $vmid, $device) = @_;
3466
3467     my $maxdev = ($conf->{scsihw} && ($conf->{scsihw} !~ m/^lsi/)) ? 256 : 7;
3468     my $controller = int($device->{index} / $maxdev);
3469     my $scsihwid="scsihw$controller";
3470     my $devices_list = vm_devices_list($vmid);
3471
3472     if(!defined($devices_list->{$scsihwid})) {
3473         vm_deviceplug($storecfg, $conf, $vmid, $scsihwid);
3474     }
3475
3476     return 1;
3477 }
3478
3479 sub qemu_add_pci_bridge {
3480     my ($storecfg, $conf, $vmid, $device) = @_;
3481
3482     my $bridges = {};
3483
3484     my $bridgeid;
3485
3486     print_pci_addr($device, $bridges);
3487
3488     while (my ($k, $v) = each %$bridges) {
3489         $bridgeid = $k;
3490     }
3491     return 1 if !defined($bridgeid) || $bridgeid < 1;
3492
3493     my $bridge = "pci.$bridgeid";
3494     my $devices_list = vm_devices_list($vmid);
3495
3496     if (!defined($devices_list->{$bridge})) {
3497         vm_deviceplug($storecfg, $conf, $vmid, $bridge);
3498     }
3499
3500     return 1;
3501 }
3502
3503 sub qemu_set_link_status {
3504     my ($vmid, $device, $up) = @_;
3505
3506     vm_mon_cmd($vmid, "set_link", name => $device,
3507                up => $up ? JSON::true : JSON::false);
3508 }
3509
3510 sub qemu_netdevadd {
3511     my ($vmid, $conf, $device, $deviceid) = @_;
3512
3513     my $netdev = print_netdev_full($vmid, $conf, $device, $deviceid);
3514     my %options =  split(/[=,]/, $netdev);
3515
3516     vm_mon_cmd($vmid, "netdev_add",  %options);
3517     return 1;
3518 }
3519
3520 sub qemu_netdevdel {
3521     my ($vmid, $deviceid) = @_;
3522
3523     vm_mon_cmd($vmid, "netdev_del", id => $deviceid);
3524 }
3525
3526 sub qemu_cpu_hotplug {
3527     my ($vmid, $conf, $vcpus) = @_;
3528
3529     my $sockets = 1;
3530     $sockets = $conf->{smp} if $conf->{smp}; # old style - no longer iused
3531     $sockets = $conf->{sockets} if  $conf->{sockets};
3532     my $cores = $conf->{cores} || 1;
3533     my $maxcpus = $sockets * $cores;
3534
3535     $vcpus = $maxcpus if !$vcpus;
3536
3537     die "you can't add more vcpus than maxcpus\n"
3538         if $vcpus > $maxcpus;
3539
3540     my $currentvcpus = $conf->{vcpus} || $maxcpus;
3541     die "online cpu unplug is not yet possible\n"
3542         if $vcpus < $currentvcpus;
3543
3544     my $currentrunningvcpus = vm_mon_cmd($vmid, "query-cpus");
3545     die "vcpus in running vm is different than configuration\n"
3546         if scalar(@{$currentrunningvcpus}) != $currentvcpus;
3547
3548     for (my $i = $currentvcpus; $i < $vcpus; $i++) {
3549         vm_mon_cmd($vmid, "cpu-add", id => int($i));
3550     }
3551 }
3552
3553 sub qemu_memory_hotplug {
3554     my ($vmid, $conf, $defaults, $opt, $value) = @_;
3555
3556     return $value if !check_running($vmid);
3557
3558     my $memory = $conf->{memory} || $defaults->{memory};
3559     $value = $defaults->{memory} if !$value;
3560     return $value if $value == $memory;
3561
3562     my $static_memory = $STATICMEM;
3563     my $dimm_memory = $memory - $static_memory;
3564
3565     die "memory can't be lower than $static_memory MB" if $value < $static_memory;
3566     die "memory unplug is not yet available" if $value < $memory;
3567     die "you cannot add more memory than $MAX_MEM MB!\n" if $memory > $MAX_MEM;
3568
3569
3570     my $sockets = 1;
3571     $sockets = $conf->{sockets} if $conf->{sockets};
3572
3573     foreach_dimm($conf, $vmid, $value, $sockets, sub {
3574         my ($conf, $vmid, $name, $dimm_size, $numanode, $current_size, $memory) = @_;
3575
3576             return if $current_size <= $conf->{memory};
3577
3578             eval { vm_mon_cmd($vmid, "object-add", 'qom-type' => "memory-backend-ram", id => "mem-$name", props => { size => int($dimm_size*1024*1024) } ) };
3579             if (my $err = $@) {
3580                 eval { qemu_objectdel($vmid, "mem-$name"); };
3581                 die $err;
3582             }
3583
3584             eval { vm_mon_cmd($vmid, "device_add", driver => "pc-dimm", id => "$name", memdev => "mem-$name", node => $numanode) };
3585             if (my $err = $@) {
3586                 eval { qemu_objectdel($vmid, "mem-$name"); };
3587                 die $err;
3588             }
3589             #update conf after each succesful module hotplug
3590             $conf->{memory} = $current_size;
3591             update_config_nolock($vmid, $conf, 1);
3592     });
3593 }
3594
3595 sub qemu_block_set_io_throttle {
3596     my ($vmid, $deviceid, $bps, $bps_rd, $bps_wr, $iops, $iops_rd, $iops_wr) = @_;
3597
3598     return if !check_running($vmid) ;
3599
3600     vm_mon_cmd($vmid, "block_set_io_throttle", device => $deviceid, bps => int($bps), bps_rd => int($bps_rd), bps_wr => int($bps_wr), iops => int($iops), iops_rd => int($iops_rd), iops_wr => int($iops_wr));
3601
3602 }
3603
3604 # old code, only used to shutdown old VM after update
3605 sub __read_avail {
3606     my ($fh, $timeout) = @_;
3607
3608     my $sel = new IO::Select;
3609     $sel->add($fh);
3610
3611     my $res = '';
3612     my $buf;
3613
3614     my @ready;
3615     while (scalar (@ready = $sel->can_read($timeout))) {
3616         my $count;
3617         if ($count = $fh->sysread($buf, 8192)) {
3618             if ($buf =~ /^(.*)\(qemu\) $/s) {
3619                 $res .= $1;
3620                 last;
3621             } else {
3622                 $res .= $buf;
3623             }
3624         } else {
3625             if (!defined($count)) {
3626                 die "$!\n";
3627             }
3628             last;
3629         }
3630     }
3631
3632     die "monitor read timeout\n" if !scalar(@ready);
3633
3634     return $res;
3635 }
3636
3637 # old code, only used to shutdown old VM after update
3638 sub vm_monitor_command {
3639     my ($vmid, $cmdstr, $nocheck) = @_;
3640
3641     my $res;
3642
3643     eval {
3644         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
3645
3646         my $sname = "${var_run_tmpdir}/$vmid.mon";
3647
3648         my $sock = IO::Socket::UNIX->new( Peer => $sname ) ||
3649             die "unable to connect to VM $vmid socket - $!\n";
3650
3651         my $timeout = 3;
3652
3653         # hack: migrate sometime blocks the monitor (when migrate_downtime
3654         # is set)
3655         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
3656             $timeout = 60*60; # 1 hour
3657         }
3658
3659         # read banner;
3660         my $data = __read_avail($sock, $timeout);
3661
3662         if ($data !~ m/^QEMU\s+(\S+)\s+monitor\s/) {
3663             die "got unexpected qemu monitor banner\n";
3664         }
3665
3666         my $sel = new IO::Select;
3667         $sel->add($sock);
3668
3669         if (!scalar(my @ready = $sel->can_write($timeout))) {
3670             die "monitor write error - timeout";
3671         }
3672
3673         my $fullcmd = "$cmdstr\r";
3674
3675         # syslog('info', "VM $vmid monitor command: $cmdstr");
3676
3677         my $b;
3678         if (!($b = $sock->syswrite($fullcmd)) || ($b != length($fullcmd))) {
3679             die "monitor write error - $!";
3680         }
3681
3682         return if ($cmdstr eq 'q') || ($cmdstr eq 'quit');
3683
3684         $timeout = 20;
3685
3686         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
3687             $timeout = 60*60; # 1 hour
3688         } elsif ($cmdstr =~ m/^(eject|change)/) {
3689             $timeout = 60; # note: cdrom mount command is slow
3690         }
3691         if ($res = __read_avail($sock, $timeout)) {
3692
3693             my @lines = split("\r?\n", $res);
3694
3695             shift @lines if $lines[0] !~ m/^unknown command/; # skip echo
3696
3697             $res = join("\n", @lines);
3698             $res .= "\n";
3699         }
3700     };
3701
3702     my $err = $@;
3703
3704     if ($err) {
3705         syslog("err", "VM $vmid monitor command failed - $err");
3706         die $err;
3707     }
3708
3709     return $res;
3710 }
3711
3712 sub qemu_block_resize {
3713     my ($vmid, $deviceid, $storecfg, $volid, $size) = @_;
3714
3715     my $running = check_running($vmid);
3716
3717     return if !PVE::Storage::volume_resize($storecfg, $volid, $size, $running);
3718
3719     return if !$running;
3720
3721     vm_mon_cmd($vmid, "block_resize", device => $deviceid, size => int($size));
3722
3723 }
3724
3725 sub qemu_volume_snapshot {
3726     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
3727
3728     my $running = check_running($vmid);
3729
3730     return if !PVE::Storage::volume_snapshot($storecfg, $volid, $snap, $running);
3731
3732     return if !$running;
3733
3734     vm_mon_cmd($vmid, "snapshot-drive", device => $deviceid, name => $snap);
3735
3736 }
3737
3738 sub qemu_volume_snapshot_delete {
3739     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
3740
3741     my $running = check_running($vmid);
3742
3743     return if !PVE::Storage::volume_snapshot_delete($storecfg, $volid, $snap, $running);
3744
3745     return if !$running;
3746
3747     vm_mon_cmd($vmid, "delete-drive-snapshot", device => $deviceid, name => $snap);
3748 }
3749
3750 sub set_migration_caps {
3751     my ($vmid) = @_;
3752
3753     my $cap_ref = [];
3754
3755     my $enabled_cap = {
3756         "auto-converge" => 1,
3757         "xbzrle" => 0,
3758         "x-rdma-pin-all" => 0,
3759         "zero-blocks" => 0,
3760     };
3761
3762     my $supported_capabilities = vm_mon_cmd_nocheck($vmid, "query-migrate-capabilities");
3763
3764     for my $supported_capability (@$supported_capabilities) {
3765         push @$cap_ref, {
3766             capability => $supported_capability->{capability},
3767             state => $enabled_cap->{$supported_capability->{capability}} ? JSON::true : JSON::false,
3768         };
3769     }
3770
3771     vm_mon_cmd_nocheck($vmid, "migrate-set-capabilities", capabilities => $cap_ref);
3772 }
3773
3774 my $fast_plug_option = {
3775     'lock' => 1,
3776     'name' => 1,
3777     'onboot' => 1,
3778     'shares' => 1,
3779     'startup' => 1,
3780 };
3781
3782 # hotplug changes in [PENDING]
3783 # $selection hash can be used to only apply specified options, for
3784 # example: { cores => 1 } (only apply changed 'cores')
3785 # $errors ref is used to return error messages
3786 sub vmconfig_hotplug_pending {
3787     my ($vmid, $conf, $storecfg, $selection, $errors) = @_;
3788
3789     my $defaults = load_defaults();
3790
3791     # commit values which do not have any impact on running VM first
3792     # Note: those option cannot raise errors, we we do not care about
3793     # $selection and always apply them.
3794
3795     my $add_error = sub {
3796         my ($opt, $msg) = @_;
3797         $errors->{$opt} = "hotplug problem - $msg";
3798     };
3799
3800     my $changes = 0;
3801     foreach my $opt (keys %{$conf->{pending}}) { # add/change
3802         if ($fast_plug_option->{$opt}) {
3803             $conf->{$opt} = $conf->{pending}->{$opt};
3804             delete $conf->{pending}->{$opt};
3805             $changes = 1;
3806         }
3807     }
3808
3809     if ($changes) {
3810         update_config_nolock($vmid, $conf, 1);
3811         $conf = load_config($vmid); # update/reload
3812     }
3813
3814     my $hotplug_features = parse_hotplug_features(defined($conf->{hotplug}) ? $conf->{hotplug} : '1');
3815
3816     my @delete = PVE::Tools::split_list($conf->{pending}->{delete});
3817     foreach my $opt (@delete) {
3818         next if $selection && !$selection->{$opt};
3819         eval {
3820             if ($opt eq 'hotplug') {
3821                 die "skip\n" if ($conf->{hotplug} =~ /memory/);
3822             } elsif ($opt eq 'tablet') {
3823                 die "skip\n" if !$hotplug_features->{usb};
3824                 if ($defaults->{tablet}) {
3825                     vm_deviceplug($storecfg, $conf, $vmid, $opt);
3826                 } else {
3827                     vm_deviceunplug($vmid, $conf, $opt);
3828                 }
3829             } elsif ($opt eq 'vcpus') {
3830                 die "skip\n" if !$hotplug_features->{cpu};
3831                 qemu_cpu_hotplug($vmid, $conf, undef);
3832             } elsif ($opt eq 'balloon') {
3833                 # enable balloon device is not hotpluggable
3834                 die "skip\n" if !defined($conf->{balloon}) || $conf->{balloon};
3835             } elsif ($fast_plug_option->{$opt}) {
3836                 # do nothing
3837             } elsif ($opt =~ m/^net(\d+)$/) {
3838                 die "skip\n" if !$hotplug_features->{network};
3839                 vm_deviceunplug($vmid, $conf, $opt);
3840             } elsif (valid_drivename($opt)) {
3841                 die "skip\n" if !$hotplug_features->{disk} || $opt =~ m/(ide|sata)(\d+)/;
3842                 vm_deviceunplug($vmid, $conf, $opt);
3843                 vmconfig_register_unused_drive($storecfg, $vmid, $conf, parse_drive($opt, $conf->{$opt}));
3844             } elsif ($opt =~ m/^memory$/) {
3845                 die "skip\n" if !$hotplug_features->{memory};
3846                 qemu_memory_hotplug($vmid, $conf, $defaults, $opt);
3847             } else {
3848                 die "skip\n";
3849             }
3850         };
3851         if (my $err = $@) {
3852             &$add_error($opt, $err) if $err ne "skip\n";
3853         } else {
3854             # save new config if hotplug was successful
3855             delete $conf->{$opt};
3856             vmconfig_undelete_pending_option($conf, $opt);
3857             update_config_nolock($vmid, $conf, 1);
3858             $conf = load_config($vmid); # update/reload
3859         }
3860     }
3861
3862     foreach my $opt (keys %{$conf->{pending}}) {
3863         next if $selection && !$selection->{$opt};
3864         my $value = $conf->{pending}->{$opt};
3865         eval {
3866             if ($opt eq 'hotplug') {
3867                 die "skip\n" if ($value =~ /memory/) || ($value !~ /memory/ && $conf->{hotplug} =~ /memory/);
3868             } elsif ($opt eq 'tablet') {
3869                 die "skip\n" if !$hotplug_features->{usb};
3870                 if ($value == 1) {
3871                     vm_deviceplug($storecfg, $conf, $vmid, $opt);
3872                 } elsif ($value == 0) {
3873                     vm_deviceunplug($vmid, $conf, $opt);
3874                 }
3875             } elsif ($opt eq 'vcpus') {
3876                 die "skip\n" if !$hotplug_features->{cpu};
3877                 qemu_cpu_hotplug($vmid, $conf, $value);
3878             } elsif ($opt eq 'balloon') {
3879                 # enable/disable balloning device is not hotpluggable
3880                 my $old_balloon_enabled =  !!(!defined($conf->{balloon}) || $conf->{balloon});
3881                 my $new_balloon_enabled =  !!(!defined($conf->{pending}->{balloon}) || $conf->{pending}->{balloon});
3882                 die "skip\n" if $old_balloon_enabled != $new_balloon_enabled;
3883
3884                 # allow manual ballooning if shares is set to zero
3885                 if ((defined($conf->{shares}) && ($conf->{shares} == 0))) {
3886                     my $balloon = $conf->{pending}->{balloon} || $conf->{memory} || $defaults->{memory};
3887                     vm_mon_cmd($vmid, "balloon", value => $balloon*1024*1024);
3888                 }
3889             } elsif ($opt =~ m/^net(\d+)$/) {
3890                 # some changes can be done without hotplug
3891                 vmconfig_update_net($storecfg, $conf, $hotplug_features->{network},
3892                                     $vmid, $opt, $value);
3893             } elsif (valid_drivename($opt)) {
3894                 # some changes can be done without hotplug
3895                 vmconfig_update_disk($storecfg, $conf, $hotplug_features->{disk},
3896                                      $vmid, $opt, $value, 1);
3897             } elsif ($opt =~ m/^memory$/) { #dimms
3898                 die "skip\n" if !$hotplug_features->{memory};
3899                 $value = qemu_memory_hotplug($vmid, $conf, $defaults, $opt, $value);
3900             } else {
3901                 die "skip\n";  # skip non-hot-pluggable options
3902             }
3903         };
3904         if (my $err = $@) {
3905             &$add_error($opt, $err) if $err ne "skip\n";
3906         } else {
3907             # save new config if hotplug was successful
3908             $conf->{$opt} = $value;
3909             delete $conf->{pending}->{$opt};
3910             update_config_nolock($vmid, $conf, 1);
3911             $conf = load_config($vmid); # update/reload
3912         }
3913     }
3914 }
3915
3916 sub vmconfig_apply_pending {
3917     my ($vmid, $conf, $storecfg) = @_;
3918
3919     # cold plug
3920
3921     my @delete = PVE::Tools::split_list($conf->{pending}->{delete});
3922     foreach my $opt (@delete) { # delete
3923         die "internal error" if $opt =~ m/^unused/;
3924         $conf = load_config($vmid); # update/reload
3925         if (!defined($conf->{$opt})) {
3926             vmconfig_undelete_pending_option($conf, $opt);
3927             update_config_nolock($vmid, $conf, 1);
3928         } elsif (valid_drivename($opt)) {
3929             vmconfig_register_unused_drive($storecfg, $vmid, $conf, parse_drive($opt, $conf->{$opt}));
3930             vmconfig_undelete_pending_option($conf, $opt);
3931             delete $conf->{$opt};
3932             update_config_nolock($vmid, $conf, 1);
3933         } else {
3934             vmconfig_undelete_pending_option($conf, $opt);
3935             delete $conf->{$opt};
3936             update_config_nolock($vmid, $conf, 1);
3937         }
3938     }
3939
3940     $conf = load_config($vmid); # update/reload
3941
3942     foreach my $opt (keys %{$conf->{pending}}) { # add/change
3943         $conf = load_config($vmid); # update/reload
3944
3945         if (defined($conf->{$opt}) && ($conf->{$opt} eq $conf->{pending}->{$opt})) {
3946             # skip if nothing changed
3947         } elsif (valid_drivename($opt)) {
3948             vmconfig_register_unused_drive($storecfg, $vmid, $conf, parse_drive($opt, $conf->{$opt}))
3949                 if defined($conf->{$opt});
3950             $conf->{$opt} = $conf->{pending}->{$opt};
3951         } else {
3952             $conf->{$opt} = $conf->{pending}->{$opt};
3953         }
3954
3955         delete $conf->{pending}->{$opt};
3956         update_config_nolock($vmid, $conf, 1);
3957     }
3958 }
3959
3960 my $safe_num_ne = sub {
3961     my ($a, $b) = @_;
3962
3963     return 0 if !defined($a) && !defined($b);
3964     return 1 if !defined($a);
3965     return 1 if !defined($b);
3966
3967     return $a != $b;
3968 };
3969
3970 my $safe_string_ne = sub {
3971     my ($a, $b) = @_;
3972
3973     return 0 if !defined($a) && !defined($b);
3974     return 1 if !defined($a);
3975     return 1 if !defined($b);
3976
3977     return $a ne $b;
3978 };
3979
3980 sub vmconfig_update_net {
3981     my ($storecfg, $conf, $hotplug, $vmid, $opt, $value) = @_;
3982
3983     my $newnet = parse_net($value);
3984
3985     if ($conf->{$opt}) {
3986         my $oldnet = parse_net($conf->{$opt});
3987
3988         if (&$safe_string_ne($oldnet->{model}, $newnet->{model}) ||
3989             &$safe_string_ne($oldnet->{macaddr}, $newnet->{macaddr}) ||
3990             &$safe_num_ne($oldnet->{queues}, $newnet->{queues}) ||
3991             !($newnet->{bridge} && $oldnet->{bridge})) { # bridge/nat mode change
3992
3993             # for non online change, we try to hot-unplug
3994             die "skip\n" if !$hotplug;
3995             vm_deviceunplug($vmid, $conf, $opt);
3996         } else {
3997
3998             die "internal error" if $opt !~ m/net(\d+)/;
3999             my $iface = "tap${vmid}i$1";
4000
4001             if (&$safe_num_ne($oldnet->{rate}, $newnet->{rate})) {
4002                 PVE::Network::tap_rate_limit($iface, $newnet->{rate});
4003             }
4004
4005             if (&$safe_string_ne($oldnet->{bridge}, $newnet->{bridge}) ||
4006                 &$safe_num_ne($oldnet->{tag}, $newnet->{tag}) ||
4007                 &$safe_num_ne($oldnet->{firewall}, $newnet->{firewall})) {
4008                 PVE::Network::tap_unplug($iface);
4009                 PVE::Network::tap_plug($iface, $newnet->{bridge}, $newnet->{tag}, $newnet->{firewall});
4010             }
4011
4012             if (&$safe_string_ne($oldnet->{link_down}, $newnet->{link_down})) {
4013                 qemu_set_link_status($vmid, $opt, !$newnet->{link_down});
4014             }
4015
4016             return 1;
4017         }
4018     }
4019
4020     if ($hotplug) {
4021         vm_deviceplug($storecfg, $conf, $vmid, $opt, $newnet);
4022     } else {
4023         die "skip\n";
4024     }
4025 }
4026
4027 sub vmconfig_update_disk {
4028     my ($storecfg, $conf, $hotplug, $vmid, $opt, $value, $force) = @_;
4029
4030     # fixme: do we need force?
4031
4032     my $drive = parse_drive($opt, $value);
4033
4034     if ($conf->{$opt}) {
4035
4036         if (my $old_drive = parse_drive($opt, $conf->{$opt}))  {
4037
4038             my $media = $drive->{media} || 'disk';
4039             my $oldmedia = $old_drive->{media} || 'disk';
4040             die "unable to change media type\n" if $media ne $oldmedia;
4041
4042             if (!drive_is_cdrom($old_drive)) {
4043
4044                 if ($drive->{file} ne $old_drive->{file}) {
4045
4046                     die "skip\n" if !$hotplug;
4047
4048                     # unplug and register as unused
4049                     vm_deviceunplug($vmid, $conf, $opt);
4050                     vmconfig_register_unused_drive($storecfg, $vmid, $conf, $old_drive)
4051
4052                 } else {
4053                     # update existing disk
4054
4055                     # skip non hotpluggable value
4056                     if (&$safe_num_ne($drive->{discard}, $old_drive->{discard}) ||
4057                         &$safe_string_ne($drive->{cache}, $old_drive->{cache})) {
4058                         die "skip\n";
4059                     }
4060
4061                     # apply throttle
4062                     if (&$safe_num_ne($drive->{mbps}, $old_drive->{mbps}) ||
4063                         &$safe_num_ne($drive->{mbps_rd}, $old_drive->{mbps_rd}) ||
4064                         &$safe_num_ne($drive->{mbps_wr}, $old_drive->{mbps_wr}) ||
4065                         &$safe_num_ne($drive->{iops}, $old_drive->{iops}) ||
4066                         &$safe_num_ne($drive->{iops_rd}, $old_drive->{iops_rd}) ||
4067                         &$safe_num_ne($drive->{iops_wr}, $old_drive->{iops_wr}) ||
4068                         &$safe_num_ne($drive->{mbps_max}, $old_drive->{mbps_max}) ||
4069                         &$safe_num_ne($drive->{mbps_rd_max}, $old_drive->{mbps_rd_max}) ||
4070                         &$safe_num_ne($drive->{mbps_wr_max}, $old_drive->{mbps_wr_max}) ||
4071                         &$safe_num_ne($drive->{iops_max}, $old_drive->{iops_max}) ||
4072                         &$safe_num_ne($drive->{iops_rd_max}, $old_drive->{iops_rd_max}) ||
4073                         &$safe_num_ne($drive->{iops_wr_max}, $old_drive->{iops_wr_max})) {
4074
4075                         qemu_block_set_io_throttle($vmid,"drive-$opt",
4076                                                    ($drive->{mbps} || 0)*1024*1024,
4077                                                    ($drive->{mbps_rd} || 0)*1024*1024,
4078                                                    ($drive->{mbps_wr} || 0)*1024*1024,
4079                                                    $drive->{iops} || 0,
4080                                                    $drive->{iops_rd} || 0,
4081                                                    $drive->{iops_wr} || 0,
4082                                                    ($drive->{mbps_max} || 0)*1024*1024,
4083                                                    ($drive->{mbps_rd_max} || 0)*1024*1024,
4084                                                    ($drive->{mbps_wr_max} || 0)*1024*1024,
4085                                                    $drive->{iops_max} || 0,
4086                                                    $drive->{iops_rd_max} || 0,
4087                                                    $drive->{iops_wr_max} || 0);
4088
4089                     }
4090
4091                     return 1;
4092                 }
4093
4094             } else { # cdrom
4095
4096                 if ($drive->{file} eq 'none') {
4097                     vm_mon_cmd($vmid, "eject",force => JSON::true,device => "drive-$opt");
4098                 } else {
4099                     my $path = get_iso_path($storecfg, $vmid, $drive->{file});
4100                     vm_mon_cmd($vmid, "eject", force => JSON::true,device => "drive-$opt"); # force eject if locked
4101                     vm_mon_cmd($vmid, "change", device => "drive-$opt",target => "$path") if $path;
4102                 }
4103
4104                 return 1;
4105             }
4106         }
4107     }
4108
4109     die "skip\n" if !$hotplug || $opt =~ m/(ide|sata)(\d+)/;
4110     # hotplug new disks
4111     vm_deviceplug($storecfg, $conf, $vmid, $opt, $drive);
4112 }
4113
4114 sub vm_start {
4115     my ($storecfg, $vmid, $statefile, $skiplock, $migratedfrom, $paused, $forcemachine, $spice_ticket) = @_;
4116
4117     lock_config($vmid, sub {
4118         my $conf = load_config($vmid, $migratedfrom);
4119
4120         die "you can't start a vm if it's a template\n" if is_template($conf);
4121
4122         check_lock($conf) if !$skiplock;
4123
4124         die "VM $vmid already running\n" if check_running($vmid, undef, $migratedfrom);
4125
4126         if (!$statefile && scalar(keys %{$conf->{pending}})) {
4127             vmconfig_apply_pending($vmid, $conf, $storecfg);
4128             $conf = load_config($vmid); # update/reload
4129         }
4130
4131         my $defaults = load_defaults();
4132
4133         # set environment variable useful inside network script
4134         $ENV{PVE_MIGRATED_FROM} = $migratedfrom if $migratedfrom;
4135
4136         my ($cmd, $vollist, $spice_port) = config_to_command($storecfg, $vmid, $conf, $defaults, $forcemachine);
4137
4138         my $migrate_port = 0;
4139         my $migrate_uri;
4140         if ($statefile) {
4141             if ($statefile eq 'tcp') {
4142                 my $localip = "localhost";
4143                 my $datacenterconf = PVE::Cluster::cfs_read_file('datacenter.cfg');
4144                 if ($datacenterconf->{migration_unsecure}) {
4145                         my $nodename = PVE::INotify::nodename();
4146                         $localip = PVE::Cluster::remote_node_ip($nodename, 1);
4147                 }
4148                 $migrate_port = PVE::Tools::next_migrate_port();
4149                 $migrate_uri = "tcp:${localip}:${migrate_port}";
4150                 push @$cmd, '-incoming', $migrate_uri;
4151                 push @$cmd, '-S';
4152             } else {
4153                 push @$cmd, '-loadstate', $statefile;
4154             }
4155         } elsif ($paused) {
4156             push @$cmd, '-S';
4157         }
4158
4159         # host pci devices
4160         for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
4161           my $d = parse_hostpci($conf->{"hostpci$i"});
4162           next if !$d;
4163           my $pcidevices = $d->{pciid};
4164           foreach my $pcidevice (@$pcidevices) {
4165                 my $pciid = $pcidevice->{id}.".".$pcidevice->{function};
4166
4167                 my $info = pci_device_info("0000:$pciid");
4168                 die "IOMMU not present\n" if !check_iommu_support();
4169                 die "no pci device info for device '$pciid'\n" if !$info;
4170
4171                 if ($d->{driver} && $d->{driver} eq "vfio") {
4172                     die "can't unbind/bind pci group to vfio '$pciid'\n" if !pci_dev_group_bind_to_vfio($pciid);
4173                 } else {
4174                     die "can't unbind/bind to stub pci device '$pciid'\n" if !pci_dev_bind_to_stub($info);
4175                 }
4176
4177                 die "can't reset pci device '$pciid'\n" if $info->{has_fl_reset} and !pci_dev_reset($info);
4178           }
4179         }
4180
4181         PVE::Storage::activate_volumes($storecfg, $vollist);
4182
4183         eval  { run_command($cmd, timeout => $statefile ? undef : 30,
4184                     umask => 0077); };
4185         my $err = $@;
4186         die "start failed: $err" if $err;
4187
4188         print "migration listens on $migrate_uri\n" if $migrate_uri;
4189
4190         if ($statefile && $statefile ne 'tcp')  {
4191             eval { vm_mon_cmd_nocheck($vmid, "cont"); };
4192             warn $@ if $@;
4193         }
4194
4195         if ($migratedfrom) {
4196
4197             eval {
4198                 set_migration_caps($vmid);
4199             };
4200             warn $@ if $@;
4201
4202             if ($spice_port) {
4203                 print "spice listens on port $spice_port\n";
4204                 if ($spice_ticket) {
4205                     vm_mon_cmd_nocheck($vmid, "set_password", protocol => 'spice', password => $spice_ticket);
4206                     vm_mon_cmd_nocheck($vmid, "expire_password", protocol => 'spice', time => "+30");
4207                 }
4208             }
4209
4210         } else {
4211
4212             if (!$statefile && (!defined($conf->{balloon}) || $conf->{balloon})) {
4213                 vm_mon_cmd_nocheck($vmid, "balloon", value => $conf->{balloon}*1024*1024)
4214                     if $conf->{balloon};
4215             }
4216
4217             foreach my $opt (keys %$conf) {
4218                 next if $opt !~  m/^net\d+$/;
4219                 my $nicconf = parse_net($conf->{$opt});
4220                 qemu_set_link_status($vmid, $opt, 0) if $nicconf->{link_down};
4221             }
4222         }
4223
4224         vm_mon_cmd_nocheck($vmid, 'qom-set',
4225                     path => "machine/peripheral/balloon0",
4226                     property => "guest-stats-polling-interval",
4227                     value => 2) if (!defined($conf->{balloon}) || $conf->{balloon});
4228
4229     });
4230 }
4231
4232 sub vm_mon_cmd {
4233     my ($vmid, $execute, %params) = @_;
4234
4235     my $cmd = { execute => $execute, arguments => \%params };
4236     vm_qmp_command($vmid, $cmd);
4237 }
4238
4239 sub vm_mon_cmd_nocheck {
4240     my ($vmid, $execute, %params) = @_;
4241
4242     my $cmd = { execute => $execute, arguments => \%params };
4243     vm_qmp_command($vmid, $cmd, 1);
4244 }
4245
4246 sub vm_qmp_command {
4247     my ($vmid, $cmd, $nocheck) = @_;
4248
4249     my $res;
4250
4251     my $timeout;
4252     if ($cmd->{arguments} && $cmd->{arguments}->{timeout}) {
4253         $timeout = $cmd->{arguments}->{timeout};
4254         delete $cmd->{arguments}->{timeout};
4255     }
4256
4257     eval {
4258         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
4259         my $sname = qmp_socket($vmid);
4260         if (-e $sname) { # test if VM is reasonambe new and supports qmp/qga
4261             my $qmpclient = PVE::QMPClient->new();
4262
4263             $res = $qmpclient->cmd($vmid, $cmd, $timeout);
4264         } elsif (-e "${var_run_tmpdir}/$vmid.mon") {
4265             die "can't execute complex command on old monitor - stop/start your vm to fix the problem\n"
4266                 if scalar(%{$cmd->{arguments}});
4267             vm_monitor_command($vmid, $cmd->{execute}, $nocheck);
4268         } else {
4269             die "unable to open monitor socket\n";
4270         }
4271     };
4272     if (my $err = $@) {
4273         syslog("err", "VM $vmid qmp command failed - $err");
4274         die $err;
4275     }
4276
4277     return $res;
4278 }
4279
4280 sub vm_human_monitor_command {
4281     my ($vmid, $cmdline) = @_;
4282
4283     my $res;
4284
4285     my $cmd = {
4286         execute => 'human-monitor-command',
4287         arguments => { 'command-line' => $cmdline},
4288     };
4289
4290     return vm_qmp_command($vmid, $cmd);
4291 }
4292
4293 sub vm_commandline {
4294     my ($storecfg, $vmid) = @_;
4295
4296     my $conf = load_config($vmid);
4297
4298     my $defaults = load_defaults();
4299
4300     my $cmd = config_to_command($storecfg, $vmid, $conf, $defaults);
4301
4302     return join(' ', @$cmd);
4303 }
4304
4305 sub vm_reset {
4306     my ($vmid, $skiplock) = @_;
4307
4308     lock_config($vmid, sub {
4309
4310         my $conf = load_config($vmid);
4311
4312         check_lock($conf) if !$skiplock;
4313
4314         vm_mon_cmd($vmid, "system_reset");
4315     });
4316 }
4317
4318 sub get_vm_volumes {
4319     my ($conf) = @_;
4320
4321     my $vollist = [];
4322     foreach_volid($conf, sub {
4323         my ($volid, $is_cdrom) = @_;
4324
4325         return if $volid =~ m|^/|;
4326
4327         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
4328         return if !$sid;
4329
4330         push @$vollist, $volid;
4331     });
4332
4333     return $vollist;
4334 }
4335
4336 sub vm_stop_cleanup {
4337     my ($storecfg, $vmid, $conf, $keepActive, $apply_pending_changes) = @_;
4338
4339     eval {
4340         fairsched_rmnod($vmid); # try to destroy group
4341
4342         if (!$keepActive) {
4343             my $vollist = get_vm_volumes($conf);
4344             PVE::Storage::deactivate_volumes($storecfg, $vollist);
4345         }
4346
4347         foreach my $ext (qw(mon qmp pid vnc qga)) {
4348             unlink "/var/run/qemu-server/${vmid}.$ext";
4349         }
4350
4351         vmconfig_apply_pending($vmid, $conf, $storecfg) if $apply_pending_changes;
4352     };
4353     warn $@ if $@; # avoid errors - just warn
4354 }
4355
4356 # Note: use $nockeck to skip tests if VM configuration file exists.
4357 # We need that when migration VMs to other nodes (files already moved)
4358 # Note: we set $keepActive in vzdump stop mode - volumes need to stay active
4359 sub vm_stop {
4360     my ($storecfg, $vmid, $skiplock, $nocheck, $timeout, $shutdown, $force, $keepActive, $migratedfrom) = @_;
4361
4362     $force = 1 if !defined($force) && !$shutdown;
4363
4364     if ($migratedfrom){
4365         my $pid = check_running($vmid, $nocheck, $migratedfrom);
4366         kill 15, $pid if $pid;
4367         my $conf = load_config($vmid, $migratedfrom);
4368         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive, 0);
4369         return;
4370     }
4371
4372     lock_config($vmid, sub {
4373
4374         my $pid = check_running($vmid, $nocheck);
4375         return if !$pid;
4376
4377         my $conf;
4378         if (!$nocheck) {
4379             $conf = load_config($vmid);
4380             check_lock($conf) if !$skiplock;
4381             if (!defined($timeout) && $shutdown && $conf->{startup}) {
4382                 my $opts = parse_startup($conf->{startup});
4383                 $timeout = $opts->{down} if $opts->{down};
4384             }
4385         }
4386
4387         $timeout = 60 if !defined($timeout);
4388
4389         eval {
4390             if ($shutdown) {
4391                 if (defined($conf) && $conf->{agent}) {
4392                     vm_qmp_command($vmid, { execute => "guest-shutdown" }, $nocheck);
4393                 } else {
4394                     vm_qmp_command($vmid, { execute => "system_powerdown" }, $nocheck);
4395                 }
4396             } else {
4397                 vm_qmp_command($vmid, { execute => "quit" }, $nocheck);
4398             }
4399         };
4400         my $err = $@;
4401
4402         if (!$err) {
4403             my $count = 0;
4404             while (($count < $timeout) && check_running($vmid, $nocheck)) {
4405                 $count++;
4406                 sleep 1;
4407             }
4408
4409             if ($count >= $timeout) {
4410                 if ($force) {
4411                     warn "VM still running - terminating now with SIGTERM\n";
4412                     kill 15, $pid;
4413                 } else {
4414                     die "VM quit/powerdown failed - got timeout\n";
4415                 }
4416             } else {
4417                 vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive, 1) if $conf;
4418                 return;
4419             }
4420         } else {
4421             if ($force) {
4422                 warn "VM quit/powerdown failed - terminating now with SIGTERM\n";
4423                 kill 15, $pid;
4424             } else {
4425                 die "VM quit/powerdown failed\n";
4426             }
4427         }
4428
4429         # wait again
4430         $timeout = 10;
4431
4432         my $count = 0;
4433         while (($count < $timeout) && check_running($vmid, $nocheck)) {
4434             $count++;
4435             sleep 1;
4436         }
4437
4438         if ($count >= $timeout) {
4439             warn "VM still running - terminating now with SIGKILL\n";
4440             kill 9, $pid;
4441             sleep 1;
4442         }
4443
4444         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive, 1) if $conf;
4445    });
4446 }
4447
4448 sub vm_suspend {
4449     my ($vmid, $skiplock) = @_;
4450
4451     lock_config($vmid, sub {
4452
4453         my $conf = load_config($vmid);
4454
4455         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
4456
4457         vm_mon_cmd($vmid, "stop");
4458     });
4459 }
4460
4461 sub vm_resume {
4462     my ($vmid, $skiplock) = @_;
4463
4464     lock_config($vmid, sub {
4465
4466         my $conf = load_config($vmid);
4467
4468         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
4469
4470         vm_mon_cmd($vmid, "cont");
4471     });
4472 }
4473
4474 sub vm_sendkey {
4475     my ($vmid, $skiplock, $key) = @_;
4476
4477     lock_config($vmid, sub {
4478
4479         my $conf = load_config($vmid);
4480
4481         # there is no qmp command, so we use the human monitor command
4482         vm_human_monitor_command($vmid, "sendkey $key");
4483     });
4484 }
4485
4486 sub vm_destroy {
4487     my ($storecfg, $vmid, $skiplock) = @_;
4488
4489     lock_config($vmid, sub {
4490
4491         my $conf = load_config($vmid);
4492
4493         check_lock($conf) if !$skiplock;
4494
4495         if (!check_running($vmid)) {
4496             fairsched_rmnod($vmid); # try to destroy group
4497             destroy_vm($storecfg, $vmid);
4498         } else {
4499             die "VM $vmid is running - destroy failed\n";
4500         }
4501     });
4502 }
4503
4504 # pci helpers
4505
4506 sub file_write {
4507     my ($filename, $buf) = @_;
4508
4509     my $fh = IO::File->new($filename, "w");
4510     return undef if !$fh;
4511
4512     my $res = print $fh $buf;
4513
4514     $fh->close();
4515
4516     return $res;
4517 }
4518
4519 sub pci_device_info {
4520     my ($name) = @_;
4521
4522     my $res;
4523
4524     return undef if $name !~ m/^([a-f0-9]{4}):([a-f0-9]{2}):([a-f0-9]{2})\.([a-f0-9])$/;
4525     my ($domain, $bus, $slot, $func) = ($1, $2, $3, $4);
4526
4527     my $irq = file_read_firstline("$pcisysfs/devices/$name/irq");
4528     return undef if !defined($irq) || $irq !~ m/^\d+$/;
4529
4530     my $vendor = file_read_firstline("$pcisysfs/devices/$name/vendor");
4531     return undef if !defined($vendor) || $vendor !~ s/^0x//;
4532
4533     my $product = file_read_firstline("$pcisysfs/devices/$name/device");
4534     return undef if !defined($product) || $product !~ s/^0x//;
4535
4536     $res = {
4537         name => $name,
4538         vendor => $vendor,
4539         product => $product,
4540         domain => $domain,
4541         bus => $bus,
4542         slot => $slot,
4543         func => $func,
4544         irq => $irq,
4545         has_fl_reset => -f "$pcisysfs/devices/$name/reset" || 0,
4546     };
4547
4548     return $res;
4549 }
4550
4551 sub pci_dev_reset {
4552     my ($dev) = @_;
4553
4554     my $name = $dev->{name};
4555
4556     my $fn = "$pcisysfs/devices/$name/reset";
4557
4558     return file_write($fn, "1");
4559 }
4560
4561 sub pci_dev_bind_to_stub {
4562     my ($dev) = @_;
4563
4564     my $name = $dev->{name};
4565
4566     my $testdir = "$pcisysfs/drivers/pci-stub/$name";
4567     return 1 if -d $testdir;
4568
4569     my $data = "$dev->{vendor} $dev->{product}";
4570     return undef if !file_write("$pcisysfs/drivers/pci-stub/new_id", $data);
4571
4572     my $fn = "$pcisysfs/devices/$name/driver/unbind";
4573     if (!file_write($fn, $name)) {
4574         return undef if -f $fn;
4575     }
4576
4577     $fn = "$pcisysfs/drivers/pci-stub/bind";
4578     if (! -d $testdir) {
4579         return undef if !file_write($fn, $name);
4580     }
4581
4582     return -d $testdir;
4583 }
4584
4585 sub pci_dev_bind_to_vfio {
4586     my ($dev) = @_;
4587
4588     my $name = $dev->{name};
4589
4590     my $vfio_basedir = "$pcisysfs/drivers/vfio-pci";
4591
4592     if (!-d $vfio_basedir) {
4593         system("/sbin/modprobe vfio-pci >/dev/null 2>/dev/null");
4594     }
4595     die "Cannot find vfio-pci module!\n" if !-d $vfio_basedir;
4596
4597     my $testdir = "$vfio_basedir/$name";
4598     return 1 if -d $testdir;
4599
4600     my $data = "$dev->{vendor} $dev->{product}";
4601     return undef if !file_write("$vfio_basedir/new_id", $data);
4602
4603     my $fn = "$pcisysfs/devices/$name/driver/unbind";
4604     if (!file_write($fn, $name)) {
4605         return undef if -f $fn;
4606     }
4607
4608     $fn = "$vfio_basedir/bind";
4609     if (! -d $testdir) {
4610         return undef if !file_write($fn, $name);
4611     }
4612
4613     return -d $testdir;
4614 }
4615
4616 sub pci_dev_group_bind_to_vfio {
4617     my ($pciid) = @_;
4618
4619     my $vfio_basedir = "$pcisysfs/drivers/vfio-pci";
4620
4621     if (!-d $vfio_basedir) {
4622         system("/sbin/modprobe vfio-pci >/dev/null 2>/dev/null");
4623     }
4624     die "Cannot find vfio-pci module!\n" if !-d $vfio_basedir;
4625
4626     # get IOMMU group devices
4627     opendir(my $D, "$pcisysfs/devices/0000:$pciid/iommu_group/devices/") || die "Cannot open iommu_group: $!\n";
4628       my @devs = grep /^0000:/, readdir($D);
4629     closedir($D);
4630
4631     foreach my $pciid (@devs) {
4632         $pciid =~ m/^([:\.\da-f]+)$/ or die "PCI ID $pciid not valid!\n";
4633
4634         # pci bridges, switches or root ports are not supported
4635         # they have a pci_bus subdirectory so skip them
4636         next if (-e "$pcisysfs/devices/$pciid/pci_bus");
4637
4638         my $info = pci_device_info($1);
4639         pci_dev_bind_to_vfio($info) || die "Cannot bind $pciid to vfio\n";
4640     }
4641
4642     return 1;
4643 }
4644
4645 sub print_pci_addr {
4646     my ($id, $bridges) = @_;
4647
4648     my $res = '';
4649     my $devices = {
4650         piix3 => { bus => 0, addr => 1 },
4651         #addr2 : first videocard
4652         balloon0 => { bus => 0, addr => 3 },
4653         watchdog => { bus => 0, addr => 4 },
4654         scsihw0 => { bus => 0, addr => 5 },
4655         scsihw1 => { bus => 0, addr => 6 },
4656         ahci0 => { bus => 0, addr => 7 },
4657         qga0 => { bus => 0, addr => 8 },
4658         spice => { bus => 0, addr => 9 },
4659         virtio0 => { bus => 0, addr => 10 },
4660         virtio1 => { bus => 0, addr => 11 },
4661         virtio2 => { bus => 0, addr => 12 },
4662         virtio3 => { bus => 0, addr => 13 },
4663         virtio4 => { bus => 0, addr => 14 },
4664         virtio5 => { bus => 0, addr => 15 },
4665         hostpci0 => { bus => 0, addr => 16 },
4666         hostpci1 => { bus => 0, addr => 17 },
4667         net0 => { bus => 0, addr => 18 },
4668         net1 => { bus => 0, addr => 19 },
4669         net2 => { bus => 0, addr => 20 },
4670         net3 => { bus => 0, addr => 21 },
4671         net4 => { bus => 0, addr => 22 },
4672         net5 => { bus => 0, addr => 23 },
4673         vga1 => { bus => 0, addr => 24 },
4674         vga2 => { bus => 0, addr => 25 },
4675         vga3 => { bus => 0, addr => 26 },
4676         hostpci2 => { bus => 0, addr => 27 },
4677         hostpci3 => { bus => 0, addr => 28 },
4678         #addr29 : usb-host (pve-usb.cfg)
4679         'pci.1' => { bus => 0, addr => 30 },
4680         'pci.2' => { bus => 0, addr => 31 },
4681         'net6' => { bus => 1, addr => 1 },
4682         'net7' => { bus => 1, addr => 2 },
4683         'net8' => { bus => 1, addr => 3 },
4684         'net9' => { bus => 1, addr => 4 },
4685         'net10' => { bus => 1, addr => 5 },
4686         'net11' => { bus => 1, addr => 6 },
4687         'net12' => { bus => 1, addr => 7 },
4688         'net13' => { bus => 1, addr => 8 },
4689         'net14' => { bus => 1, addr => 9 },
4690         'net15' => { bus => 1, addr => 10 },
4691         'net16' => { bus => 1, addr => 11 },
4692         'net17' => { bus => 1, addr => 12 },
4693         'net18' => { bus => 1, addr => 13 },
4694         'net19' => { bus => 1, addr => 14 },
4695         'net20' => { bus => 1, addr => 15 },
4696         'net21' => { bus => 1, addr => 16 },
4697         'net22' => { bus => 1, addr => 17 },
4698         'net23' => { bus => 1, addr => 18 },
4699         'net24' => { bus => 1, addr => 19 },
4700         'net25' => { bus => 1, addr => 20 },
4701         'net26' => { bus => 1, addr => 21 },
4702         'net27' => { bus => 1, addr => 22 },
4703         'net28' => { bus => 1, addr => 23 },
4704         'net29' => { bus => 1, addr => 24 },
4705         'net30' => { bus => 1, addr => 25 },
4706         'net31' => { bus => 1, addr => 26 },
4707         'virtio6' => { bus => 2, addr => 1 },
4708         'virtio7' => { bus => 2, addr => 2 },
4709         'virtio8' => { bus => 2, addr => 3 },
4710         'virtio9' => { bus => 2, addr => 4 },
4711         'virtio10' => { bus => 2, addr => 5 },
4712         'virtio11' => { bus => 2, addr => 6 },
4713         'virtio12' => { bus => 2, addr => 7 },
4714         'virtio13' => { bus => 2, addr => 8 },
4715         'virtio14' => { bus => 2, addr => 9 },
4716         'virtio15' => { bus => 2, addr => 10 },
4717     };
4718
4719     if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
4720            my $addr = sprintf("0x%x", $devices->{$id}->{addr});
4721            my $bus = $devices->{$id}->{bus};
4722            $res = ",bus=pci.$bus,addr=$addr";
4723            $bridges->{$bus} = 1 if $bridges;
4724     }
4725     return $res;
4726
4727 }
4728
4729 sub print_pcie_addr {
4730     my ($id) = @_;
4731
4732     my $res = '';
4733     my $devices = {
4734         hostpci0 => { bus => "ich9-pcie-port-1", addr => 0 },
4735         hostpci1 => { bus => "ich9-pcie-port-2", addr => 0 },
4736         hostpci2 => { bus => "ich9-pcie-port-3", addr => 0 },
4737         hostpci3 => { bus => "ich9-pcie-port-4", addr => 0 },
4738     };
4739
4740     if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
4741            my $addr = sprintf("0x%x", $devices->{$id}->{addr});
4742            my $bus = $devices->{$id}->{bus};
4743            $res = ",bus=$bus,addr=$addr";
4744     }
4745     return $res;
4746
4747 }
4748
4749 # vzdump restore implementaion
4750
4751 sub tar_archive_read_firstfile {
4752     my $archive = shift;
4753
4754     die "ERROR: file '$archive' does not exist\n" if ! -f $archive;
4755
4756     # try to detect archive type first
4757     my $pid = open (TMP, "tar tf '$archive'|") ||
4758         die "unable to open file '$archive'\n";
4759     my $firstfile = <TMP>;
4760     kill 15, $pid;
4761     close TMP;
4762
4763     die "ERROR: archive contaions no data\n" if !$firstfile;
4764     chomp $firstfile;
4765
4766     return $firstfile;
4767 }
4768
4769 sub tar_restore_cleanup {
4770     my ($storecfg, $statfile) = @_;
4771
4772     print STDERR "starting cleanup\n";
4773
4774     if (my $fd = IO::File->new($statfile, "r")) {
4775         while (defined(my $line = <$fd>)) {
4776             if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
4777                 my $volid = $2;
4778                 eval {
4779                     if ($volid =~ m|^/|) {
4780                         unlink $volid || die 'unlink failed\n';
4781                     } else {
4782                         PVE::Storage::vdisk_free($storecfg, $volid);
4783                     }
4784                     print STDERR "temporary volume '$volid' sucessfuly removed\n";
4785                 };
4786                 print STDERR "unable to cleanup '$volid' - $@" if $@;
4787             } else {
4788                 print STDERR "unable to parse line in statfile - $line";
4789             }
4790         }
4791         $fd->close();
4792     }
4793 }
4794
4795 sub restore_archive {
4796     my ($archive, $vmid, $user, $opts) = @_;
4797
4798     my $format = $opts->{format};
4799     my $comp;
4800
4801     if ($archive =~ m/\.tgz$/ || $archive =~ m/\.tar\.gz$/) {
4802         $format = 'tar' if !$format;
4803         $comp = 'gzip';
4804     } elsif ($archive =~ m/\.tar$/) {
4805         $format = 'tar' if !$format;
4806     } elsif ($archive =~ m/.tar.lzo$/) {
4807         $format = 'tar' if !$format;
4808         $comp = 'lzop';
4809     } elsif ($archive =~ m/\.vma$/) {
4810         $format = 'vma' if !$format;
4811     } elsif ($archive =~ m/\.vma\.gz$/) {
4812         $format = 'vma' if !$format;
4813         $comp = 'gzip';
4814     } elsif ($archive =~ m/\.vma\.lzo$/) {
4815         $format = 'vma' if !$format;
4816         $comp = 'lzop';
4817     } else {
4818         $format = 'vma' if !$format; # default
4819     }
4820
4821     # try to detect archive format
4822     if ($format eq 'tar') {
4823         return restore_tar_archive($archive, $vmid, $user, $opts);
4824     } else {
4825         return restore_vma_archive($archive, $vmid, $user, $opts, $comp);
4826     }
4827 }
4828
4829 sub restore_update_config_line {
4830     my ($outfd, $cookie, $vmid, $map, $line, $unique) = @_;
4831
4832     return if $line =~ m/^\#qmdump\#/;
4833     return if $line =~ m/^\#vzdump\#/;
4834     return if $line =~ m/^lock:/;
4835     return if $line =~ m/^unused\d+:/;
4836     return if $line =~ m/^parent:/;
4837     return if $line =~ m/^template:/; # restored VM is never a template
4838
4839     if (($line =~ m/^(vlan(\d+)):\s*(\S+)\s*$/)) {
4840         # try to convert old 1.X settings
4841         my ($id, $ind, $ethcfg) = ($1, $2, $3);
4842         foreach my $devconfig (PVE::Tools::split_list($ethcfg)) {
4843             my ($model, $macaddr) = split(/\=/, $devconfig);
4844             $macaddr = PVE::Tools::random_ether_addr() if !$macaddr || $unique;
4845             my $net = {
4846                 model => $model,
4847                 bridge => "vmbr$ind",
4848                 macaddr => $macaddr,
4849             };
4850             my $netstr = print_net($net);
4851
4852             print $outfd "net$cookie->{netcount}: $netstr\n";
4853             $cookie->{netcount}++;
4854         }
4855     } elsif (($line =~ m/^(net\d+):\s*(\S+)\s*$/) && $unique) {
4856         my ($id, $netstr) = ($1, $2);
4857         my $net = parse_net($netstr);
4858         $net->{macaddr} = PVE::Tools::random_ether_addr() if $net->{macaddr};
4859         $netstr = print_net($net);
4860         print $outfd "$id: $netstr\n";
4861     } elsif ($line =~ m/^((ide|scsi|virtio|sata)\d+):\s*(\S+)\s*$/) {
4862         my $virtdev = $1;
4863         my $value = $3;
4864         if ($line =~ m/backup=no/) {
4865             print $outfd "#$line";
4866         } elsif ($virtdev && $map->{$virtdev}) {
4867             my $di = parse_drive($virtdev, $value);
4868             delete $di->{format}; # format can change on restore
4869             $di->{file} = $map->{$virtdev};
4870             $value = print_drive($vmid, $di);
4871             print $outfd "$virtdev: $value\n";
4872         } else {
4873             print $outfd $line;
4874         }
4875     } else {
4876         print $outfd $line;
4877     }
4878 }
4879
4880 sub scan_volids {
4881     my ($cfg, $vmid) = @_;
4882
4883     my $info = PVE::Storage::vdisk_list($cfg, undef, $vmid);
4884
4885     my $volid_hash = {};
4886     foreach my $storeid (keys %$info) {
4887         foreach my $item (@{$info->{$storeid}}) {
4888             next if !($item->{volid} && $item->{size});
4889             $item->{path} = PVE::Storage::path($cfg, $item->{volid});
4890             $volid_hash->{$item->{volid}} = $item;
4891         }
4892     }
4893
4894     return $volid_hash;
4895 }
4896
4897 sub get_used_paths {
4898     my ($vmid, $storecfg, $conf, $scan_snapshots, $skip_drive) = @_;
4899
4900     my $used_path = {};
4901
4902     my $scan_config = sub {
4903         my ($cref, $snapname) = @_;
4904
4905         foreach my $key (keys %$cref) {
4906             my $value = $cref->{$key};
4907             if (valid_drivename($key)) {
4908                 next if $skip_drive && $key eq $skip_drive;
4909                 my $drive = parse_drive($key, $value);
4910                 next if !$drive || !$drive->{file} || drive_is_cdrom($drive);
4911                 if ($drive->{file} =~ m!^/!) {
4912                     $used_path->{$drive->{file}}++; # = 1;
4913                 } else {
4914                     my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file}, 1);
4915                     next if !$storeid;
4916                     my $scfg = PVE::Storage::storage_config($storecfg, $storeid, 1);
4917                     next if !$scfg;
4918                     my $path = PVE::Storage::path($storecfg, $drive->{file}, $snapname);
4919                     $used_path->{$path}++; # = 1;
4920                 }
4921             }
4922         }
4923     };
4924
4925     &$scan_config($conf);
4926
4927     undef $skip_drive;
4928
4929     if ($scan_snapshots) {
4930         foreach my $snapname (keys %{$conf->{snapshots}}) {
4931             &$scan_config($conf->{snapshots}->{$snapname}, $snapname);
4932         }
4933     }
4934
4935     return $used_path;
4936 }
4937
4938 sub update_disksize {
4939     my ($vmid, $conf, $volid_hash) = @_;
4940
4941     my $changes;
4942
4943     my $used = {};
4944
4945     # Note: it is allowed to define multiple storages with same path (alias), so
4946     # we need to check both 'volid' and real 'path' (two different volid can point
4947     # to the same path).
4948
4949     my $usedpath = {};
4950
4951     # update size info
4952     foreach my $opt (keys %$conf) {
4953         if (valid_drivename($opt)) {
4954             my $drive = parse_drive($opt, $conf->{$opt});
4955             my $volid = $drive->{file};
4956             next if !$volid;
4957
4958             $used->{$volid} = 1;
4959             if ($volid_hash->{$volid} &&
4960                 (my $path = $volid_hash->{$volid}->{path})) {
4961                 $usedpath->{$path} = 1;
4962             }
4963
4964             next if drive_is_cdrom($drive);
4965             next if !$volid_hash->{$volid};
4966
4967             $drive->{size} = $volid_hash->{$volid}->{size};
4968             my $new = print_drive($vmid, $drive);
4969             if ($new ne $conf->{$opt}) {
4970                 $changes = 1;
4971                 $conf->{$opt} = $new;
4972             }
4973         }
4974     }
4975
4976     # remove 'unusedX' entry if volume is used
4977     foreach my $opt (keys %$conf) {
4978         next if $opt !~ m/^unused\d+$/;
4979         my $volid = $conf->{$opt};
4980         my $path = $volid_hash->{$volid}->{path} if $volid_hash->{$volid};
4981         if ($used->{$volid} || ($path && $usedpath->{$path})) {
4982             $changes = 1;
4983             delete $conf->{$opt};
4984         }
4985     }
4986
4987     foreach my $volid (sort keys %$volid_hash) {
4988         next if $volid =~ m/vm-$vmid-state-/;
4989         next if $used->{$volid};
4990         my $path = $volid_hash->{$volid}->{path};
4991         next if !$path; # just to be sure
4992         next if $usedpath->{$path};
4993         $changes = 1;
4994         add_unused_volume($conf, $volid);
4995         $usedpath->{$path} = 1; # avoid to add more than once (aliases)
4996     }
4997
4998     return $changes;
4999 }
5000
5001 sub rescan {
5002     my ($vmid, $nolock) = @_;
5003
5004     my $cfg = PVE::Cluster::cfs_read_file("storage.cfg");
5005
5006     my $volid_hash = scan_volids($cfg, $vmid);
5007
5008     my $updatefn =  sub {
5009         my ($vmid) = @_;
5010
5011         my $conf = load_config($vmid);
5012
5013         check_lock($conf);
5014
5015         my $vm_volids = {};
5016         foreach my $volid (keys %$volid_hash) {
5017             my $info = $volid_hash->{$volid};
5018             $vm_volids->{$volid} = $info if $info->{vmid} && $info->{vmid} == $vmid;
5019         }
5020
5021         my $changes = update_disksize($vmid, $conf, $vm_volids);
5022
5023         update_config_nolock($vmid, $conf, 1) if $changes;
5024     };
5025
5026     if (defined($vmid)) {
5027         if ($nolock) {
5028             &$updatefn($vmid);
5029         } else {
5030             lock_config($vmid, $updatefn, $vmid);
5031         }
5032     } else {
5033         my $vmlist = config_list();
5034         foreach my $vmid (keys %$vmlist) {
5035             if ($nolock) {
5036                 &$updatefn($vmid);
5037             } else {
5038                 lock_config($vmid, $updatefn, $vmid);
5039             }
5040         }
5041     }
5042 }
5043
5044 sub restore_vma_archive {
5045     my ($archive, $vmid, $user, $opts, $comp) = @_;
5046
5047     my $input = $archive eq '-' ? "<&STDIN" : undef;
5048     my $readfrom = $archive;
5049
5050     my $uncomp = '';
5051     if ($comp) {
5052         $readfrom = '-';
5053         my $qarchive = PVE::Tools::shellquote($archive);
5054         if ($comp eq 'gzip') {
5055             $uncomp = "zcat $qarchive|";
5056         } elsif ($comp eq 'lzop') {
5057             $uncomp = "lzop -d -c $qarchive|";
5058         } else {
5059             die "unknown compression method '$comp'\n";
5060         }
5061
5062     }
5063
5064     my $tmpdir = "/var/tmp/vzdumptmp$$";
5065     rmtree $tmpdir;
5066
5067     # disable interrupts (always do cleanups)
5068     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
5069         warn "got interrupt - ignored\n";
5070     };
5071
5072     my $mapfifo = "/var/tmp/vzdumptmp$$.fifo";
5073     POSIX::mkfifo($mapfifo, 0600);
5074     my $fifofh;
5075
5076     my $openfifo = sub {
5077         open($fifofh, '>', $mapfifo) || die $!;
5078     };
5079
5080     my $cmd = "${uncomp}vma extract -v -r $mapfifo $readfrom $tmpdir";
5081
5082     my $oldtimeout;
5083     my $timeout = 5;
5084
5085     my $devinfo = {};
5086
5087     my $rpcenv = PVE::RPCEnvironment::get();
5088
5089     my $conffile = config_file($vmid);
5090     my $tmpfn = "$conffile.$$.tmp";
5091
5092     # Note: $oldconf is undef if VM does not exists
5093     my $oldconf = PVE::Cluster::cfs_read_file(cfs_config_path($vmid));
5094
5095     my $print_devmap = sub {
5096         my $virtdev_hash = {};
5097
5098         my $cfgfn = "$tmpdir/qemu-server.conf";
5099
5100         # we can read the config - that is already extracted
5101         my $fh = IO::File->new($cfgfn, "r") ||
5102             "unable to read qemu-server.conf - $!\n";
5103
5104         while (defined(my $line = <$fh>)) {
5105             if ($line =~ m/^\#qmdump\#map:(\S+):(\S+):(\S*):(\S*):$/) {
5106                 my ($virtdev, $devname, $storeid, $format) = ($1, $2, $3, $4);
5107                 die "archive does not contain data for drive '$virtdev'\n"
5108                     if !$devinfo->{$devname};
5109                 if (defined($opts->{storage})) {
5110                     $storeid = $opts->{storage} || 'local';
5111                 } elsif (!$storeid) {
5112                     $storeid = 'local';
5113                 }
5114                 $format = 'raw' if !$format;
5115                 $devinfo->{$devname}->{devname} = $devname;
5116                 $devinfo->{$devname}->{virtdev} = $virtdev;
5117                 $devinfo->{$devname}->{format} = $format;
5118                 $devinfo->{$devname}->{storeid} = $storeid;
5119
5120                 # check permission on storage
5121                 my $pool = $opts->{pool}; # todo: do we need that?
5122                 if ($user ne 'root@pam') {
5123                     $rpcenv->check($user, "/storage/$storeid", ['Datastore.AllocateSpace']);
5124                 }
5125
5126                 $virtdev_hash->{$virtdev} = $devinfo->{$devname};
5127             }
5128         }
5129
5130         foreach my $devname (keys %$devinfo) {
5131             die "found no device mapping information for device '$devname'\n"
5132                 if !$devinfo->{$devname}->{virtdev};
5133         }
5134
5135         my $cfg = cfs_read_file('storage.cfg');
5136
5137         # create empty/temp config
5138         if ($oldconf) {
5139             PVE::Tools::file_set_contents($conffile, "memory: 128\n");
5140             foreach_drive($oldconf, sub {
5141                 my ($ds, $drive) = @_;
5142
5143                 return if drive_is_cdrom($drive);
5144
5145                 my $volid = $drive->{file};
5146
5147                 return if !$volid || $volid =~ m|^/|;
5148
5149                 my ($path, $owner) = PVE::Storage::path($cfg, $volid);
5150                 return if !$path || !$owner || ($owner != $vmid);
5151
5152                 # Note: only delete disk we want to restore
5153                 # other volumes will become unused
5154                 if ($virtdev_hash->{$ds}) {
5155                     PVE::Storage::vdisk_free($cfg, $volid);
5156                 }
5157             });
5158         }
5159
5160         my $map = {};
5161         foreach my $virtdev (sort keys %$virtdev_hash) {
5162             my $d = $virtdev_hash->{$virtdev};
5163             my $alloc_size = int(($d->{size} + 1024 - 1)/1024);
5164             my $scfg = PVE::Storage::storage_config($cfg, $d->{storeid});
5165
5166             # test if requested format is supported
5167             my ($defFormat, $validFormats) = PVE::Storage::storage_default_format($cfg, $d->{storeid});
5168             my $supported = grep { $_ eq $d->{format} } @$validFormats;
5169             $d->{format} = $defFormat if !$supported;
5170
5171             my $volid = PVE::Storage::vdisk_alloc($cfg, $d->{storeid}, $vmid,
5172                                                   $d->{format}, undef, $alloc_size);
5173             print STDERR "new volume ID is '$volid'\n";
5174             $d->{volid} = $volid;
5175             my $path = PVE::Storage::path($cfg, $volid);
5176
5177             my $write_zeros = 1;
5178             # fixme: what other storages types initialize volumes with zero?
5179             if ($scfg->{type} eq 'dir' || $scfg->{type} eq 'nfs' || $scfg->{type} eq 'glusterfs' ||
5180                 $scfg->{type} eq 'sheepdog' || $scfg->{type} eq 'rbd') {
5181                 $write_zeros = 0;
5182             }
5183
5184             print $fifofh "${write_zeros}:$d->{devname}=$path\n";
5185
5186             print "map '$d->{devname}' to '$path' (write zeros = ${write_zeros})\n";
5187             $map->{$virtdev} = $volid;
5188         }
5189
5190         $fh->seek(0, 0) || die "seek failed - $!\n";
5191
5192         my $outfd = new IO::File ($tmpfn, "w") ||
5193             die "unable to write config for VM $vmid\n";
5194
5195         my $cookie = { netcount => 0 };
5196         while (defined(my $line = <$fh>)) {
5197             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
5198         }
5199
5200         $fh->close();
5201         $outfd->close();
5202     };
5203
5204     eval {
5205         # enable interrupts
5206         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
5207             die "interrupted by signal\n";
5208         };
5209         local $SIG{ALRM} = sub { die "got timeout\n"; };
5210
5211         $oldtimeout = alarm($timeout);
5212
5213         my $parser = sub {
5214             my $line = shift;
5215
5216             print "$line\n";
5217
5218             if ($line =~ m/^DEV:\sdev_id=(\d+)\ssize:\s(\d+)\sdevname:\s(\S+)$/) {
5219                 my ($dev_id, $size, $devname) = ($1, $2, $3);
5220                 $devinfo->{$devname} = { size => $size, dev_id => $dev_id };
5221             } elsif ($line =~ m/^CTIME: /) {
5222                 # we correctly received the vma config, so we can disable
5223                 # the timeout now for disk allocation (set to 10 minutes, so
5224                 # that we always timeout if something goes wrong)
5225                 alarm(600);
5226                 &$print_devmap();
5227                 print $fifofh "done\n";
5228                 my $tmp = $oldtimeout || 0;
5229                 $oldtimeout = undef;
5230                 alarm($tmp);
5231                 close($fifofh);
5232             }
5233         };
5234
5235         print "restore vma archive: $cmd\n";
5236         run_command($cmd, input => $input, outfunc => $parser, afterfork => $openfifo);
5237     };
5238     my $err = $@;
5239
5240     alarm($oldtimeout) if $oldtimeout;
5241
5242     unlink $mapfifo;
5243
5244     if ($err) {
5245         rmtree $tmpdir;
5246         unlink $tmpfn;
5247
5248         my $cfg = cfs_read_file('storage.cfg');
5249         foreach my $devname (keys %$devinfo) {
5250             my $volid = $devinfo->{$devname}->{volid};
5251             next if !$volid;
5252             eval {
5253                 if ($volid =~ m|^/|) {
5254                     unlink $volid || die 'unlink failed\n';
5255                 } else {
5256                     PVE::Storage::vdisk_free($cfg, $volid);
5257                 }
5258                 print STDERR "temporary volume '$volid' sucessfuly removed\n";
5259             };
5260             print STDERR "unable to cleanup '$volid' - $@" if $@;
5261         }
5262         die $err;
5263     }
5264
5265     rmtree $tmpdir;
5266
5267     rename($tmpfn, $conffile) ||
5268         die "unable to commit configuration file '$conffile'\n";
5269
5270     PVE::Cluster::cfs_update(); # make sure we read new file
5271
5272     eval { rescan($vmid, 1); };
5273     warn $@ if $@;
5274 }
5275
5276 sub restore_tar_archive {
5277     my ($archive, $vmid, $user, $opts) = @_;
5278
5279     if ($archive ne '-') {
5280         my $firstfile = tar_archive_read_firstfile($archive);
5281         die "ERROR: file '$archive' dos not lock like a QemuServer vzdump backup\n"
5282             if $firstfile ne 'qemu-server.conf';
5283     }
5284
5285     my $storecfg = cfs_read_file('storage.cfg');
5286
5287     # destroy existing data - keep empty config
5288     my $vmcfgfn = config_file($vmid);
5289     destroy_vm($storecfg, $vmid, 1) if -f $vmcfgfn;
5290
5291     my $tocmd = "/usr/lib/qemu-server/qmextract";
5292
5293     $tocmd .= " --storage " . PVE::Tools::shellquote($opts->{storage}) if $opts->{storage};
5294     $tocmd .= " --pool " . PVE::Tools::shellquote($opts->{pool}) if $opts->{pool};
5295     $tocmd .= ' --prealloc' if $opts->{prealloc};
5296     $tocmd .= ' --info' if $opts->{info};
5297
5298     # tar option "xf" does not autodetect compression when read from STDIN,
5299     # so we pipe to zcat
5300     my $cmd = "zcat -f|tar xf " . PVE::Tools::shellquote($archive) . " " .
5301         PVE::Tools::shellquote("--to-command=$tocmd");
5302
5303     my $tmpdir = "/var/tmp/vzdumptmp$$";
5304     mkpath $tmpdir;
5305
5306     local $ENV{VZDUMP_TMPDIR} = $tmpdir;
5307     local $ENV{VZDUMP_VMID} = $vmid;
5308     local $ENV{VZDUMP_USER} = $user;
5309
5310     my $conffile = config_file($vmid);
5311     my $tmpfn = "$conffile.$$.tmp";
5312
5313     # disable interrupts (always do cleanups)
5314     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
5315         print STDERR "got interrupt - ignored\n";
5316     };
5317
5318     eval {
5319         # enable interrupts
5320         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
5321             die "interrupted by signal\n";
5322         };
5323
5324         if ($archive eq '-') {
5325             print "extracting archive from STDIN\n";
5326             run_command($cmd, input => "<&STDIN");
5327         } else {
5328             print "extracting archive '$archive'\n";
5329             run_command($cmd);
5330         }
5331
5332         return if $opts->{info};
5333
5334         # read new mapping
5335         my $map = {};
5336         my $statfile = "$tmpdir/qmrestore.stat";
5337         if (my $fd = IO::File->new($statfile, "r")) {
5338             while (defined (my $line = <$fd>)) {
5339                 if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
5340                     $map->{$1} = $2 if $1;
5341                 } else {
5342                     print STDERR "unable to parse line in statfile - $line\n";
5343                 }
5344             }
5345             $fd->close();
5346         }
5347
5348         my $confsrc = "$tmpdir/qemu-server.conf";
5349
5350         my $srcfd = new IO::File($confsrc, "r") ||
5351             die "unable to open file '$confsrc'\n";
5352
5353         my $outfd = new IO::File ($tmpfn, "w") ||
5354             die "unable to write config for VM $vmid\n";
5355
5356         my $cookie = { netcount => 0 };
5357         while (defined (my $line = <$srcfd>)) {
5358             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
5359         }
5360
5361         $srcfd->close();
5362         $outfd->close();
5363     };
5364     my $err = $@;
5365
5366     if ($err) {
5367
5368         unlink $tmpfn;
5369
5370         tar_restore_cleanup($storecfg, "$tmpdir/qmrestore.stat") if !$opts->{info};
5371
5372         die $err;
5373     }
5374
5375     rmtree $tmpdir;
5376
5377     rename $tmpfn, $conffile ||
5378         die "unable to commit configuration file '$conffile'\n";
5379
5380     PVE::Cluster::cfs_update(); # make sure we read new file
5381
5382     eval { rescan($vmid, 1); };
5383     warn $@ if $@;
5384 };
5385
5386
5387 # Internal snapshots
5388
5389 # NOTE: Snapshot create/delete involves several non-atomic
5390 # action, and can take a long time.
5391 # So we try to avoid locking the file and use 'lock' variable
5392 # inside the config file instead.
5393
5394 my $snapshot_copy_config = sub {
5395     my ($source, $dest) = @_;
5396
5397     foreach my $k (keys %$source) {
5398         next if $k eq 'snapshots';
5399         next if $k eq 'snapstate';
5400         next if $k eq 'snaptime';
5401         next if $k eq 'vmstate';
5402         next if $k eq 'lock';
5403         next if $k eq 'digest';
5404         next if $k eq 'description';
5405         next if $k =~ m/^unused\d+$/;
5406
5407         $dest->{$k} = $source->{$k};
5408     }
5409 };
5410
5411 my $snapshot_apply_config = sub {
5412     my ($conf, $snap) = @_;
5413
5414     # copy snapshot list
5415     my $newconf = {
5416         snapshots => $conf->{snapshots},
5417     };
5418
5419     # keep description and list of unused disks
5420     foreach my $k (keys %$conf) {
5421         next if !($k =~ m/^unused\d+$/ || $k eq 'description');
5422         $newconf->{$k} = $conf->{$k};
5423     }
5424
5425     &$snapshot_copy_config($snap, $newconf);
5426
5427     return $newconf;
5428 };
5429
5430 sub foreach_writable_storage {
5431     my ($conf, $func) = @_;
5432
5433     my $sidhash = {};
5434
5435     foreach my $ds (keys %$conf) {
5436         next if !valid_drivename($ds);
5437
5438         my $drive = parse_drive($ds, $conf->{$ds});
5439         next if !$drive;
5440         next if drive_is_cdrom($drive);
5441
5442         my $volid = $drive->{file};
5443
5444         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
5445         $sidhash->{$sid} = $sid if $sid;
5446     }
5447
5448     foreach my $sid (sort keys %$sidhash) {
5449         &$func($sid);
5450     }
5451 }
5452
5453 my $alloc_vmstate_volid = sub {
5454     my ($storecfg, $vmid, $conf, $snapname) = @_;
5455
5456     # Note: we try to be smart when selecting a $target storage
5457
5458     my $target;
5459
5460     # search shared storage first
5461     foreach_writable_storage($conf, sub {
5462         my ($sid) = @_;
5463         my $scfg = PVE::Storage::storage_config($storecfg, $sid);
5464         return if !$scfg->{shared};
5465
5466         $target = $sid if !$target || $scfg->{path}; # prefer file based storage
5467     });
5468
5469     if (!$target) {
5470         # now search local storage
5471         foreach_writable_storage($conf, sub {
5472             my ($sid) = @_;
5473             my $scfg = PVE::Storage::storage_config($storecfg, $sid);
5474             return if $scfg->{shared};
5475
5476             $target = $sid if !$target || $scfg->{path}; # prefer file based storage;
5477         });
5478     }
5479
5480     $target = 'local' if !$target;
5481
5482     my $driver_state_size = 500; # assume 32MB is enough to safe all driver state;
5483     # we abort live save after $conf->{memory}, so we need at max twice that space
5484     my $size = $conf->{memory}*2 + $driver_state_size;
5485
5486     my $name = "vm-$vmid-state-$snapname";
5487     my $scfg = PVE::Storage::storage_config($storecfg, $target);
5488     $name .= ".raw" if $scfg->{path}; # add filename extension for file base storage
5489     my $volid = PVE::Storage::vdisk_alloc($storecfg, $target, $vmid, 'raw', $name, $size*1024);
5490
5491     return $volid;
5492 };
5493
5494 my $snapshot_prepare = sub {
5495     my ($vmid, $snapname, $save_vmstate, $comment) = @_;
5496
5497     my $snap;
5498
5499     my $updatefn =  sub {
5500
5501         my $conf = load_config($vmid);
5502
5503         die "you can't take a snapshot if it's a template\n"
5504             if is_template($conf);
5505
5506         check_lock($conf);
5507
5508         $conf->{lock} = 'snapshot';
5509
5510         die "snapshot name '$snapname' already used\n"
5511             if defined($conf->{snapshots}->{$snapname});
5512
5513         my $storecfg = PVE::Storage::config();
5514         die "snapshot feature is not available" if !has_feature('snapshot', $conf, $storecfg);
5515
5516         $snap = $conf->{snapshots}->{$snapname} = {};
5517
5518         if ($save_vmstate && check_running($vmid)) {
5519             $snap->{vmstate} = &$alloc_vmstate_volid($storecfg, $vmid, $conf, $snapname);
5520         }
5521
5522         &$snapshot_copy_config($conf, $snap);
5523
5524         $snap->{snapstate} = "prepare";
5525         $snap->{snaptime} = time();
5526         $snap->{description} = $comment if $comment;
5527
5528         # always overwrite machine if we save vmstate. This makes sure we
5529         # can restore it later using correct machine type
5530         $snap->{machine} = get_current_qemu_machine($vmid) if $snap->{vmstate};
5531
5532         update_config_nolock($vmid, $conf, 1);
5533     };
5534
5535     lock_config($vmid, $updatefn);
5536
5537     return $snap;
5538 };
5539
5540 my $snapshot_commit = sub {
5541     my ($vmid, $snapname) = @_;
5542
5543     my $updatefn = sub {
5544
5545         my $conf = load_config($vmid);
5546
5547         die "missing snapshot lock\n"
5548             if !($conf->{lock} && $conf->{lock} eq 'snapshot');
5549
5550         my $has_machine_config = defined($conf->{machine});
5551
5552         my $snap = $conf->{snapshots}->{$snapname};
5553
5554         die "snapshot '$snapname' does not exist\n" if !defined($snap);
5555
5556         die "wrong snapshot state\n"
5557             if !($snap->{snapstate} && $snap->{snapstate} eq "prepare");
5558
5559         delete $snap->{snapstate};
5560         delete $conf->{lock};
5561
5562         my $newconf = &$snapshot_apply_config($conf, $snap);
5563
5564         delete $newconf->{machine} if !$has_machine_config;
5565
5566         $newconf->{parent} = $snapname;
5567
5568         update_config_nolock($vmid, $newconf, 1);
5569     };
5570
5571     lock_config($vmid, $updatefn);
5572 };
5573
5574 sub snapshot_rollback {
5575     my ($vmid, $snapname) = @_;
5576
5577     my $prepare = 1;
5578
5579     my $storecfg = PVE::Storage::config();
5580
5581     my $conf = load_config($vmid);
5582
5583     my $get_snapshot_config = sub {
5584
5585         die "you can't rollback if vm is a template\n" if is_template($conf);
5586
5587         my $res = $conf->{snapshots}->{$snapname};
5588
5589         die "snapshot '$snapname' does not exist\n" if !defined($res);
5590
5591         return $res;
5592     };
5593
5594     my $snap = &$get_snapshot_config();
5595
5596     foreach_drive($snap, sub {
5597         my ($ds, $drive) = @_;
5598
5599         return if drive_is_cdrom($drive);
5600
5601         my $volid = $drive->{file};
5602
5603         PVE::Storage::volume_rollback_is_possible($storecfg, $volid, $snapname);
5604     });
5605
5606     my $updatefn = sub {
5607
5608         $conf = load_config($vmid);
5609
5610         $snap = &$get_snapshot_config();
5611
5612         die "unable to rollback to incomplete snapshot (snapstate = $snap->{snapstate})\n"
5613             if $snap->{snapstate};
5614
5615         if ($prepare) {
5616             check_lock($conf);
5617             vm_stop($storecfg, $vmid, undef, undef, 5, undef, undef);
5618         }
5619
5620         die "unable to rollback vm $vmid: vm is running\n"
5621             if check_running($vmid);
5622
5623         if ($prepare) {
5624             $conf->{lock} = 'rollback';
5625         } else {
5626             die "got wrong lock\n" if !($conf->{lock} && $conf->{lock} eq 'rollback');
5627             delete $conf->{lock};
5628         }
5629
5630         my $forcemachine;
5631
5632         if (!$prepare) {
5633             my $has_machine_config = defined($conf->{machine});
5634
5635             # copy snapshot config to current config
5636             $conf = &$snapshot_apply_config($conf, $snap);
5637             $conf->{parent} = $snapname;
5638
5639             # Note: old code did not store 'machine', so we try to be smart
5640             # and guess the snapshot was generated with kvm 1.4 (pc-i440fx-1.4).
5641             $forcemachine = $conf->{machine} || 'pc-i440fx-1.4';
5642             # we remove the 'machine' configuration if not explicitly specified
5643             # in the original config.
5644             delete $conf->{machine} if $snap->{vmstate} && !$has_machine_config;
5645         }
5646
5647         update_config_nolock($vmid, $conf, 1);
5648
5649         if (!$prepare && $snap->{vmstate}) {
5650             my $statefile = PVE::Storage::path($storecfg, $snap->{vmstate});
5651             vm_start($storecfg, $vmid, $statefile, undef, undef, undef, $forcemachine);
5652         }
5653     };
5654
5655     lock_config($vmid, $updatefn);
5656
5657     foreach_drive($snap, sub {
5658         my ($ds, $drive) = @_;
5659
5660         return if drive_is_cdrom($drive);
5661
5662         my $volid = $drive->{file};
5663         my $device = "drive-$ds";
5664
5665         PVE::Storage::volume_snapshot_rollback($storecfg, $volid, $snapname);
5666     });
5667
5668     $prepare = 0;
5669     lock_config($vmid, $updatefn);
5670 }
5671
5672 my $savevm_wait = sub {
5673     my ($vmid) = @_;
5674
5675     for(;;) {
5676         my $stat = vm_mon_cmd_nocheck($vmid, "query-savevm");
5677         if (!$stat->{status}) {
5678             die "savevm not active\n";
5679         } elsif ($stat->{status} eq 'active') {
5680             sleep(1);
5681             next;
5682         } elsif ($stat->{status} eq 'completed') {
5683             last;
5684         } else {
5685             die "query-savevm returned status '$stat->{status}'\n";
5686         }
5687     }
5688 };
5689
5690 sub snapshot_create {
5691     my ($vmid, $snapname, $save_vmstate, $comment) = @_;
5692
5693     my $snap = &$snapshot_prepare($vmid, $snapname, $save_vmstate, $comment);
5694
5695     $save_vmstate = 0 if !$snap->{vmstate}; # vm is not running
5696
5697     my $config = load_config($vmid);
5698
5699     my $running = check_running($vmid);
5700
5701     my $freezefs = $running && $config->{agent};
5702     $freezefs = 0 if $snap->{vmstate}; # not needed if we save RAM
5703
5704     my $drivehash = {};
5705
5706     if ($freezefs) {
5707         eval { vm_mon_cmd($vmid, "guest-fsfreeze-freeze"); };
5708         warn "guest-fsfreeze-freeze problems - $@" if $@;
5709     }
5710
5711     eval {
5712         # create internal snapshots of all drives
5713
5714         my $storecfg = PVE::Storage::config();
5715
5716         if ($running) {
5717             if ($snap->{vmstate}) {
5718                 my $path = PVE::Storage::path($storecfg, $snap->{vmstate});
5719                 vm_mon_cmd($vmid, "savevm-start", statefile => $path);
5720                 &$savevm_wait($vmid);
5721             } else {
5722                 vm_mon_cmd($vmid, "savevm-start");
5723             }
5724         };
5725
5726         foreach_drive($snap, sub {
5727             my ($ds, $drive) = @_;
5728
5729             return if drive_is_cdrom($drive);
5730
5731             my $volid = $drive->{file};
5732             my $device = "drive-$ds";
5733
5734             qemu_volume_snapshot($vmid, $device, $storecfg, $volid, $snapname);
5735             $drivehash->{$ds} = 1;
5736        });
5737     };
5738     my $err = $@;
5739
5740     if ($running) {
5741         eval { vm_mon_cmd($vmid, "savevm-end")  };
5742         warn $@ if $@;
5743
5744         if ($freezefs) {
5745             eval { vm_mon_cmd($vmid, "guest-fsfreeze-thaw"); };
5746             warn "guest-fsfreeze-thaw problems - $@" if $@;
5747         }
5748
5749         # savevm-end is async, we need to wait
5750         for (;;) {
5751             my $stat = vm_mon_cmd_nocheck($vmid, "query-savevm");
5752             if (!$stat->{bytes}) {
5753                 last;
5754             } else {
5755                 print "savevm not yet finished\n";
5756                 sleep(1);
5757                 next;
5758             }
5759         }
5760     }
5761
5762     if ($err) {
5763         warn "snapshot create failed: starting cleanup\n";
5764         eval { snapshot_delete($vmid, $snapname, 0, $drivehash); };
5765         warn $@ if $@;
5766         die $err;
5767     }
5768
5769     &$snapshot_commit($vmid, $snapname);
5770 }
5771
5772 # Note: $drivehash is only set when called from snapshot_create.
5773 sub snapshot_delete {
5774     my ($vmid, $snapname, $force, $drivehash) = @_;
5775
5776     my $prepare = 1;
5777
5778     my $snap;
5779     my $unused = [];
5780
5781     my $unlink_parent = sub {
5782         my ($confref, $new_parent) = @_;
5783
5784         if ($confref->{parent} && $confref->{parent} eq $snapname) {
5785             if ($new_parent) {
5786                 $confref->{parent} = $new_parent;
5787             } else {
5788                 delete $confref->{parent};
5789             }
5790         }
5791     };
5792
5793     my $updatefn =  sub {
5794         my ($remove_drive) = @_;
5795
5796         my $conf = load_config($vmid);
5797
5798         if (!$drivehash) {
5799             check_lock($conf);
5800             die "you can't delete a snapshot if vm is a template\n"
5801                 if is_template($conf);
5802         }
5803
5804         $snap = $conf->{snapshots}->{$snapname};
5805
5806         die "snapshot '$snapname' does not exist\n" if !defined($snap);
5807
5808         # remove parent refs
5809         if (!$prepare) {
5810             &$unlink_parent($conf, $snap->{parent});
5811             foreach my $sn (keys %{$conf->{snapshots}}) {
5812                 next if $sn eq $snapname;
5813                 &$unlink_parent($conf->{snapshots}->{$sn}, $snap->{parent});
5814             }
5815         }
5816
5817         if ($remove_drive) {
5818             if ($remove_drive eq 'vmstate') {
5819                 delete $snap->{$remove_drive};
5820             } else {
5821                 my $drive = parse_drive($remove_drive, $snap->{$remove_drive});
5822                 my $volid = $drive->{file};
5823                 delete $snap->{$remove_drive};
5824                 add_unused_volume($conf, $volid);
5825             }
5826         }
5827
5828         if ($prepare) {
5829             $snap->{snapstate} = 'delete';
5830         } else {
5831             delete $conf->{snapshots}->{$snapname};
5832             delete $conf->{lock} if $drivehash;
5833             foreach my $volid (@$unused) {
5834                 add_unused_volume($conf, $volid);
5835             }
5836         }
5837
5838         update_config_nolock($vmid, $conf, 1);
5839     };
5840
5841     lock_config($vmid, $updatefn);
5842
5843     # now remove vmstate file
5844
5845     my $storecfg = PVE::Storage::config();
5846
5847     if ($snap->{vmstate}) {
5848         eval {  PVE::Storage::vdisk_free($storecfg, $snap->{vmstate}); };
5849         if (my $err = $@) {
5850             die $err if !$force;
5851             warn $err;
5852         }
5853         # save changes (remove vmstate from snapshot)
5854         lock_config($vmid, $updatefn, 'vmstate') if !$force;
5855     };
5856
5857     # now remove all internal snapshots
5858     foreach_drive($snap, sub {
5859         my ($ds, $drive) = @_;
5860
5861         return if drive_is_cdrom($drive);
5862
5863         my $volid = $drive->{file};
5864         my $device = "drive-$ds";
5865
5866         if (!$drivehash || $drivehash->{$ds}) {
5867             eval { qemu_volume_snapshot_delete($vmid, $device, $storecfg, $volid, $snapname); };
5868             if (my $err = $@) {
5869                 die $err if !$force;
5870                 warn $err;
5871             }
5872         }
5873
5874         # save changes (remove drive fron snapshot)
5875         lock_config($vmid, $updatefn, $ds) if !$force;
5876         push @$unused, $volid;
5877     });
5878
5879     # now cleanup config
5880     $prepare = 0;
5881     lock_config($vmid, $updatefn);
5882 }
5883
5884 sub has_feature {
5885     my ($feature, $conf, $storecfg, $snapname, $running) = @_;
5886
5887     my $err;
5888     foreach_drive($conf, sub {
5889         my ($ds, $drive) = @_;
5890
5891         return if drive_is_cdrom($drive);
5892         my $volid = $drive->{file};
5893         $err = 1 if !PVE::Storage::volume_has_feature($storecfg, $feature, $volid, $snapname, $running);
5894     });
5895
5896     return $err ? 0 : 1;
5897 }
5898
5899 sub template_create {
5900     my ($vmid, $conf, $disk) = @_;
5901
5902     my $storecfg = PVE::Storage::config();
5903
5904     foreach_drive($conf, sub {
5905         my ($ds, $drive) = @_;
5906
5907         return if drive_is_cdrom($drive);
5908         return if $disk && $ds ne $disk;
5909
5910         my $volid = $drive->{file};
5911         return if !PVE::Storage::volume_has_feature($storecfg, 'template', $volid);
5912
5913         my $voliddst = PVE::Storage::vdisk_create_base($storecfg, $volid);
5914         $drive->{file} = $voliddst;
5915         $conf->{$ds} = print_drive($vmid, $drive);
5916         update_config_nolock($vmid, $conf, 1);
5917     });
5918 }
5919
5920 sub is_template {
5921     my ($conf) = @_;
5922
5923     return 1 if defined $conf->{template} && $conf->{template} == 1;
5924 }
5925
5926 sub qemu_img_convert {
5927     my ($src_volid, $dst_volid, $size, $snapname) = @_;
5928
5929     my $storecfg = PVE::Storage::config();
5930     my ($src_storeid, $src_volname) = PVE::Storage::parse_volume_id($src_volid, 1);
5931     my ($dst_storeid, $dst_volname) = PVE::Storage::parse_volume_id($dst_volid, 1);
5932
5933     if ($src_storeid && $dst_storeid) {
5934         my $src_scfg = PVE::Storage::storage_config($storecfg, $src_storeid);
5935         my $dst_scfg = PVE::Storage::storage_config($storecfg, $dst_storeid);
5936
5937         my $src_format = qemu_img_format($src_scfg, $src_volname);
5938         my $dst_format = qemu_img_format($dst_scfg, $dst_volname);
5939
5940         my $src_path = PVE::Storage::path($storecfg, $src_volid, $snapname);
5941         my $dst_path = PVE::Storage::path($storecfg, $dst_volid);
5942
5943         my $cmd = [];
5944         push @$cmd, '/usr/bin/qemu-img', 'convert', '-t', 'writeback', '-p', '-n';
5945         push @$cmd, '-s', $snapname if($snapname && $src_format eq "qcow2");
5946         push @$cmd, '-f', $src_format, '-O', $dst_format, $src_path, $dst_path;
5947
5948         my $parser = sub {
5949             my $line = shift;
5950             if($line =~ m/\((\S+)\/100\%\)/){
5951                 my $percent = $1;
5952                 my $transferred = int($size * $percent / 100);
5953                 my $remaining = $size - $transferred;
5954
5955                 print "transferred: $transferred bytes remaining: $remaining bytes total: $size bytes progression: $percent %\n";
5956             }
5957
5958         };
5959
5960         eval  { run_command($cmd, timeout => undef, outfunc => $parser); };
5961         my $err = $@;
5962         die "copy failed: $err" if $err;
5963     }
5964 }
5965
5966 sub qemu_img_format {
5967     my ($scfg, $volname) = @_;
5968
5969     if ($scfg->{path} && $volname =~ m/\.(raw|qcow2|qed|vmdk)$/) {
5970         return $1;
5971     } elsif ($scfg->{type} eq 'iscsi') {
5972         return "host_device";
5973     } else {
5974         return "raw";
5975     }
5976 }
5977
5978 sub qemu_drive_mirror {
5979     my ($vmid, $drive, $dst_volid, $vmiddst) = @_;
5980
5981     my $count = 0;
5982     my $old_len = 0;
5983     my $frozen = undef;
5984     my $maxwait = 120;
5985
5986     my $storecfg = PVE::Storage::config();
5987     my ($dst_storeid, $dst_volname) = PVE::Storage::parse_volume_id($dst_volid);
5988
5989     my $dst_scfg = PVE::Storage::storage_config($storecfg, $dst_storeid);
5990
5991     my $format;
5992     if ($dst_volname =~ m/\.(raw|qcow2)$/){
5993         $format = $1;
5994     }
5995
5996     my $dst_path = PVE::Storage::path($storecfg, $dst_volid);
5997
5998     my $opts = { timeout => 10, device => "drive-$drive", mode => "existing", sync => "full", target => $dst_path };
5999     $opts->{format} = $format if $format;
6000
6001     #fixme : sometime drive-mirror timeout, but works fine after.
6002     # (I have see the problem with big volume > 200GB), so we need to eval
6003     eval { vm_mon_cmd($vmid, "drive-mirror", %$opts); };
6004     # ignore errors here
6005
6006     eval {
6007         while (1) {
6008             my $stats = vm_mon_cmd($vmid, "query-block-jobs");
6009             my $stat = @$stats[0];
6010             die "mirroring job seem to have die. Maybe do you have bad sectors?" if !$stat;
6011             die "error job is not mirroring" if $stat->{type} ne "mirror";
6012
6013             my $busy = $stat->{busy};
6014
6015             if (my $total = $stat->{len}) {
6016                 my $transferred = $stat->{offset} || 0;
6017                 my $remaining = $total - $transferred;
6018                 my $percent = sprintf "%.2f", ($transferred * 100 / $total);
6019
6020                 print "transferred: $transferred bytes remaining: $remaining bytes total: $total bytes progression: $percent % busy: $busy\n";
6021             }
6022
6023             if ($stat->{len} == $stat->{offset}) {
6024                 if ($busy eq 'false') {
6025
6026                     last if $vmiddst != $vmid;
6027
6028                     # try to switch the disk if source and destination are on the same guest
6029                     eval { vm_mon_cmd($vmid, "block-job-complete", device => "drive-$drive") };
6030                     last if !$@;
6031                     die $@ if $@ !~ m/cannot be completed/;
6032                 }
6033
6034                 if ($count > $maxwait) {
6035                     # if too much writes to disk occurs at the end of migration
6036                     #the disk needs to be freezed to be able to complete the migration
6037                     vm_suspend($vmid,1);
6038                     $frozen = 1;
6039                 }
6040                 $count ++
6041             }
6042             $old_len = $stat->{offset};
6043             sleep 1;
6044         }
6045
6046         vm_resume($vmid, 1) if $frozen;
6047
6048     };
6049     my $err = $@;
6050
6051     my $cancel_job = sub {
6052         vm_mon_cmd($vmid, "block-job-cancel", device => "drive-$drive");
6053         while (1) {
6054             my $stats = vm_mon_cmd($vmid, "query-block-jobs");
6055             my $stat = @$stats[0];
6056             last if !$stat;
6057             sleep 1;
6058         }
6059     };
6060
6061     if ($err) {
6062         eval { &$cancel_job(); };
6063         die "mirroring error: $err";
6064     }
6065
6066     if ($vmiddst != $vmid) {
6067         # if we clone a disk for a new target vm, we don't switch the disk
6068         &$cancel_job(); # so we call block-job-cancel
6069     }
6070 }
6071
6072 sub clone_disk {
6073     my ($storecfg, $vmid, $running, $drivename, $drive, $snapname,
6074         $newvmid, $storage, $format, $full, $newvollist) = @_;
6075
6076     my $newvolid;
6077
6078     if (!$full) {
6079         print "create linked clone of drive $drivename ($drive->{file})\n";
6080         $newvolid = PVE::Storage::vdisk_clone($storecfg,  $drive->{file}, $newvmid, $snapname);
6081         push @$newvollist, $newvolid;
6082     } else {
6083         my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file});
6084         $storeid = $storage if $storage;
6085
6086         my ($defFormat, $validFormats) = PVE::Storage::storage_default_format($storecfg, $storeid);
6087         if (!$format) {
6088             $format = $drive->{format} || $defFormat;
6089         }
6090
6091         # test if requested format is supported - else use default
6092         my $supported = grep { $_ eq $format } @$validFormats;
6093         $format = $defFormat if !$supported;
6094
6095         my ($size) = PVE::Storage::volume_size_info($storecfg, $drive->{file}, 3);
6096
6097         print "create full clone of drive $drivename ($drive->{file})\n";
6098         $newvolid = PVE::Storage::vdisk_alloc($storecfg, $storeid, $newvmid, $format, undef, ($size/1024));
6099         push @$newvollist, $newvolid;
6100
6101         if (!$running || $snapname) {
6102             qemu_img_convert($drive->{file}, $newvolid, $size, $snapname);
6103         } else {
6104             qemu_drive_mirror($vmid, $drivename, $newvolid, $newvmid);
6105         }
6106     }
6107
6108     my ($size) = PVE::Storage::volume_size_info($storecfg, $newvolid, 3);
6109
6110     my $disk = $drive;
6111     $disk->{format} = undef;
6112     $disk->{file} = $newvolid;
6113     $disk->{size} = $size;
6114
6115     return $disk;
6116 }
6117
6118 # this only works if VM is running
6119 sub get_current_qemu_machine {
6120     my ($vmid) = @_;
6121
6122     my $cmd = { execute => 'query-machines', arguments => {} };
6123     my $res = vm_qmp_command($vmid, $cmd);
6124
6125     my ($current, $default);
6126     foreach my $e (@$res) {
6127         $default = $e->{name} if $e->{'is-default'};
6128         $current = $e->{name} if $e->{'is-current'};
6129     }
6130
6131     # fallback to the default machine if current is not supported by qemu
6132     return $current || $default || 'pc';
6133 }
6134
6135 sub qemu_machine_feature_enabled {
6136     my ($machine, $kvmver, $version_major, $version_minor) = @_;
6137
6138     my $current_major;
6139     my $current_minor;
6140
6141     if ($machine && $machine =~ m/^(pc(-i440fx|-q35)?-(\d+)\.(\d+))/) {
6142
6143         $current_major = $3;
6144         $current_minor = $4;
6145
6146     } elsif ($kvmver =~ m/^(\d+)\.(\d+)/) {
6147
6148         $current_major = $1;
6149         $current_minor = $2;
6150     }
6151
6152     return 1 if $current_major >= $version_major && $current_minor >= $version_minor;
6153
6154
6155 }
6156
6157 sub lspci {
6158
6159     my $devices = {};
6160
6161     dir_glob_foreach("$pcisysfs/devices", '[a-f0-9]{4}:([a-f0-9]{2}:[a-f0-9]{2})\.([0-9])', sub {
6162             my (undef, $id, $function) = @_;
6163             my $res = { id => $id, function => $function};
6164             push @{$devices->{$id}}, $res;
6165     });
6166
6167     return $devices;
6168 }
6169
6170 1;