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 @$cmd, '-no-hpet';
2868             #push @$cpuFlags , 'hv_vapic" if !$nokvm;  #fixme, my win2008R2 hang at boot with this
2869             push @$cpuFlags , 'hv_spinlocks=0xffff' if !$nokvm;
2870         }
2871
2872         if ($ost eq 'win7' || $ost eq 'win8') {
2873             push @$cpuFlags , 'hv_relaxed' if !$nokvm;
2874         }
2875     }
2876
2877     push @$rtcFlags, 'driftfix=slew' if $tdf;
2878
2879     if ($nokvm) {
2880         push @$machineFlags, 'accel=tcg';
2881     } else {
2882         die "No accelerator found!\n" if !$cpuinfo->{hvm};
2883     }
2884
2885     if ($machine_type) {
2886         push @$machineFlags, "type=${machine_type}";
2887     }
2888
2889     if ($conf->{startdate}) {
2890         push @$rtcFlags, "base=$conf->{startdate}";
2891     } elsif ($useLocaltime) {
2892         push @$rtcFlags, 'base=localtime';
2893     }
2894
2895     my $cpu = $nokvm ? "qemu64" : "kvm64";
2896     $cpu = $conf->{cpu} if $conf->{cpu};
2897
2898     push @$cpuFlags , '+lahf_lm' if $cpu eq 'kvm64';
2899
2900     push @$cpuFlags , '+x2apic' if !$nokvm && $conf->{ostype} ne 'solaris';
2901
2902     push @$cpuFlags , '-x2apic' if $conf->{ostype} eq 'solaris';
2903
2904     push @$cpuFlags, '+sep' if $cpu eq 'kvm64' || $cpu eq 'kvm32';
2905
2906     $cpu .= "," . join(',', @$cpuFlags) if scalar(@$cpuFlags);
2907
2908     # Note: enforce needs kernel 3.10, so we do not use it for now
2909     # push @$cmd, '-cpu', "$cpu,enforce";
2910     push @$cmd, '-cpu', $cpu;
2911
2912     my $memory = $conf->{memory} || $defaults->{memory};
2913     my $static_memory = 0;
2914     my $dimm_memory = 0;
2915
2916     if ($hotplug_features->{memory}) {
2917         die "Numa need to be enabled for memory hotplug\n" if !$conf->{numa};
2918         die "Total memory is bigger than ${MAX_MEM}MB\n" if $memory > $MAX_MEM;
2919         $static_memory = $STATICMEM;
2920         die "minimum memory must be ${static_memory}MB\n" if($memory < $static_memory);
2921         $dimm_memory = $memory - $static_memory;
2922         push @$cmd, '-m', "size=${static_memory},slots=255,maxmem=${MAX_MEM}M";
2923
2924     } else {
2925
2926         $static_memory = $memory;
2927         push @$cmd, '-m', $static_memory;
2928     }
2929
2930     if ($conf->{numa}) {
2931
2932         my $numa_totalmemory = undef;
2933         for (my $i = 0; $i < $MAX_NUMA; $i++) {
2934             next if !$conf->{"numa$i"};
2935             my $numa = parse_numa($conf->{"numa$i"});
2936             next if !$numa;
2937             # memory
2938             die "missing numa node$i memory value\n" if !$numa->{memory};
2939             my $numa_memory = $numa->{memory};
2940             $numa_totalmemory += $numa_memory;
2941             my $numa_object = "memory-backend-ram,id=ram-node$i,size=${numa_memory}M";
2942
2943             # cpus
2944             my $cpus_start = $numa->{cpus}->{start};
2945             die "missing numa node$i cpus\n" if !defined($cpus_start);
2946             my $cpus_end = $numa->{cpus}->{end} if defined($numa->{cpus}->{end});
2947             my $cpus = $cpus_start;
2948             if (defined($cpus_end)) {
2949                 $cpus .= "-$cpus_end";
2950                 die "numa node$i :  cpu range $cpus is incorrect\n" if $cpus_end <= $cpus_start;
2951             }
2952
2953             # hostnodes
2954             my $hostnodes_start = $numa->{hostnodes}->{start};
2955             if (defined($hostnodes_start)) {
2956                 my $hostnodes_end = $numa->{hostnodes}->{end} if defined($numa->{hostnodes}->{end});
2957                 my $hostnodes = $hostnodes_start;
2958                 if (defined($hostnodes_end)) {
2959                     $hostnodes .= "-$hostnodes_end";
2960                     die "host node $hostnodes range is incorrect\n" if $hostnodes_end <= $hostnodes_start;
2961                 }
2962
2963                 my $hostnodes_end_range = defined($hostnodes_end) ? $hostnodes_end : $hostnodes_start;
2964                 for (my $i = $hostnodes_start; $i <= $hostnodes_end_range; $i++ ) {
2965                     die "host numa node$i don't exist\n" if ! -d "/sys/devices/system/node/node$i/";
2966                 }
2967
2968                 # policy
2969                 my $policy = $numa->{policy};
2970                 die "you need to define a policy for hostnode $hostnodes\n" if !$policy;
2971                 $numa_object .= ",host-nodes=$hostnodes,policy=$policy";
2972             }
2973
2974             push @$cmd, '-object', $numa_object;
2975             push @$cmd, '-numa', "node,nodeid=$i,cpus=$cpus,memdev=ram-node$i";
2976         }
2977
2978         die "total memory for NUMA nodes must be equal to vm static memory\n"
2979             if $numa_totalmemory && $numa_totalmemory != $static_memory;
2980
2981         #if no custom tology, we split memory and cores across numa nodes
2982         if(!$numa_totalmemory) {
2983
2984             my $numa_memory = ($static_memory / $sockets) . "M";
2985
2986             for (my $i = 0; $i < $sockets; $i++)  {
2987
2988                 my $cpustart = ($cores * $i);
2989                 my $cpuend = ($cpustart + $cores - 1) if $cores && $cores > 1;
2990                 my $cpus = $cpustart;
2991                 $cpus .= "-$cpuend" if $cpuend;
2992
2993                 push @$cmd, '-object', "memory-backend-ram,size=$numa_memory,id=ram-node$i";
2994                 push @$cmd, '-numa', "node,nodeid=$i,cpus=$cpus,memdev=ram-node$i";
2995             }
2996         }
2997     }
2998
2999     if ($hotplug_features->{memory}) {
3000         foreach_dimm($conf, $vmid, $memory, $sockets, sub {
3001             my ($conf, $vmid, $name, $dimm_size, $numanode, $current_size, $memory) = @_;
3002             push @$cmd, "-object" , "memory-backend-ram,id=mem-$name,size=${dimm_size}M";
3003             push @$cmd, "-device", "pc-dimm,id=$name,memdev=mem-$name,node=$numanode";
3004
3005             #if dimm_memory is not aligned to dimm map
3006             if($current_size > $memory) {
3007                  $conf->{memory} = $current_size;
3008                  update_config_nolock($vmid, $conf, 1);
3009             }
3010         });
3011     }
3012
3013     push @$cmd, '-S' if $conf->{freeze};
3014
3015     # set keyboard layout
3016     my $kb = $conf->{keyboard} || $defaults->{keyboard};
3017     push @$cmd, '-k', $kb if $kb;
3018
3019     # enable sound
3020     #my $soundhw = $conf->{soundhw} || $defaults->{soundhw};
3021     #push @$cmd, '-soundhw', 'es1370';
3022     #push @$cmd, '-soundhw', $soundhw if $soundhw;
3023
3024     if($conf->{agent}) {
3025         my $qgasocket = qmp_socket($vmid, 1);
3026         my $pciaddr = print_pci_addr("qga0", $bridges);
3027         push @$devices, '-chardev', "socket,path=$qgasocket,server,nowait,id=qga0";
3028         push @$devices, '-device', "virtio-serial,id=qga0$pciaddr";
3029         push @$devices, '-device', 'virtserialport,chardev=qga0,name=org.qemu.guest_agent.0';
3030     }
3031
3032     my $spice_port;
3033
3034     if ($qxlnum) {
3035         if ($qxlnum > 1) {
3036             if ($conf->{ostype} && $conf->{ostype} =~ m/^w/){
3037                 for(my $i = 1; $i < $qxlnum; $i++){
3038                     my $pciaddr = print_pci_addr("vga$i", $bridges);
3039                     push @$cmd, '-device', "qxl,id=vga$i,ram_size=67108864,vram_size=33554432$pciaddr";
3040                 }
3041             } else {
3042                 # assume other OS works like Linux
3043                 push @$cmd, '-global', 'qxl-vga.ram_size=134217728';
3044                 push @$cmd, '-global', 'qxl-vga.vram_size=67108864';
3045             }
3046         }
3047
3048         my $pciaddr = print_pci_addr("spice", $bridges);
3049
3050         $spice_port = PVE::Tools::next_spice_port();
3051
3052         push @$devices, '-spice', "tls-port=${spice_port},addr=127.0.0.1,tls-ciphers=DES-CBC3-SHA,seamless-migration=on";
3053
3054         push @$devices, '-device', "virtio-serial,id=spice$pciaddr";
3055         push @$devices, '-chardev', "spicevmc,id=vdagent,name=vdagent";
3056         push @$devices, '-device', "virtserialport,chardev=vdagent,name=com.redhat.spice.0";
3057     }
3058
3059     # enable balloon by default, unless explicitly disabled
3060     if (!defined($conf->{balloon}) || $conf->{balloon}) {
3061         $pciaddr = print_pci_addr("balloon0", $bridges);
3062         push @$devices, '-device', "virtio-balloon-pci,id=balloon0$pciaddr";
3063     }
3064
3065     if ($conf->{watchdog}) {
3066         my $wdopts = parse_watchdog($conf->{watchdog});
3067         $pciaddr = print_pci_addr("watchdog", $bridges);
3068         my $watchdog = $wdopts->{model} || 'i6300esb';
3069         push @$devices, '-device', "$watchdog$pciaddr";
3070         push @$devices, '-watchdog-action', $wdopts->{action} if $wdopts->{action};
3071     }
3072
3073     my $vollist = [];
3074     my $scsicontroller = {};
3075     my $ahcicontroller = {};
3076     my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : $defaults->{scsihw};
3077
3078     # Add iscsi initiator name if available
3079     if (my $initiator = get_initiator_name()) {
3080         push @$devices, '-iscsi', "initiator-name=$initiator";
3081     }
3082
3083     foreach_drive($conf, sub {
3084         my ($ds, $drive) = @_;
3085
3086         if (PVE::Storage::parse_volume_id($drive->{file}, 1)) {
3087             push @$vollist, $drive->{file};
3088         }
3089
3090         $use_virtio = 1 if $ds =~ m/^virtio/;
3091
3092         if (drive_is_cdrom ($drive)) {
3093             if ($bootindex_hash->{d}) {
3094                 $drive->{bootindex} = $bootindex_hash->{d};
3095                 $bootindex_hash->{d} += 1;
3096             }
3097         } else {
3098             if ($bootindex_hash->{c}) {
3099                 $drive->{bootindex} = $bootindex_hash->{c} if $conf->{bootdisk} && ($conf->{bootdisk} eq $ds);
3100                 $bootindex_hash->{c} += 1;
3101             }
3102         }
3103
3104         if ($drive->{interface} eq 'scsi') {
3105
3106             my $maxdev = ($scsihw !~ m/^lsi/) ? 256 : 7;
3107             my $controller = int($drive->{index} / $maxdev);
3108             $pciaddr = print_pci_addr("scsihw$controller", $bridges);
3109             push @$devices, '-device', "$scsihw,id=scsihw$controller$pciaddr" if !$scsicontroller->{$controller};
3110             $scsicontroller->{$controller}=1;
3111         }
3112
3113         if ($drive->{interface} eq 'sata') {
3114            my $controller = int($drive->{index} / $MAX_SATA_DISKS);
3115            $pciaddr = print_pci_addr("ahci$controller", $bridges);
3116            push @$devices, '-device', "ahci,id=ahci$controller,multifunction=on$pciaddr" if !$ahcicontroller->{$controller};
3117            $ahcicontroller->{$controller}=1;
3118         }
3119
3120         my $drive_cmd = print_drive_full($storecfg, $vmid, $drive);
3121         push @$devices, '-drive',$drive_cmd;
3122         push @$devices, '-device', print_drivedevice_full($storecfg, $conf, $vmid, $drive, $bridges);
3123     });
3124
3125     for (my $i = 0; $i < $MAX_NETS; $i++) {
3126          next if !$conf->{"net$i"};
3127          my $d = parse_net($conf->{"net$i"});
3128          next if !$d;
3129
3130          $use_virtio = 1 if $d->{model} eq 'virtio';
3131
3132          if ($bootindex_hash->{n}) {
3133             $d->{bootindex} = $bootindex_hash->{n};
3134             $bootindex_hash->{n} += 1;
3135          }
3136
3137          my $netdevfull = print_netdev_full($vmid,$conf,$d,"net$i");
3138          push @$devices, '-netdev', $netdevfull;
3139
3140          my $netdevicefull = print_netdevice_full($vmid,$conf,$d,"net$i",$bridges);
3141          push @$devices, '-device', $netdevicefull;
3142     }
3143
3144     if (!$q35) {
3145         # add pci bridges
3146         while (my ($k, $v) = each %$bridges) {
3147             $pciaddr = print_pci_addr("pci.$k");
3148             unshift @$devices, '-device', "pci-bridge,id=pci.$k,chassis_nr=$k$pciaddr" if $k > 0;
3149         }
3150     }
3151
3152     # hack: virtio with fairsched is unreliable, so we do not use fairsched
3153     # when the VM uses virtio devices.
3154     if (!$use_virtio && $have_ovz) {
3155
3156         my $cpuunits = defined($conf->{cpuunits}) ?
3157             $conf->{cpuunits} : $defaults->{cpuunits};
3158
3159         push @$cmd, '-cpuunits', $cpuunits if $cpuunits;
3160
3161         # fixme: cpulimit is currently ignored
3162         #push @$cmd, '-cpulimit', $conf->{cpulimit} if $conf->{cpulimit};
3163     }
3164
3165     # add custom args
3166     if ($conf->{args}) {
3167         my $aa = PVE::Tools::split_args($conf->{args});
3168         push @$cmd, @$aa;
3169     }
3170
3171     push @$cmd, @$devices;
3172     push @$cmd, '-rtc', join(',', @$rtcFlags)
3173         if scalar(@$rtcFlags);
3174     push @$cmd, '-machine', join(',', @$machineFlags)
3175         if scalar(@$machineFlags);
3176     push @$cmd, '-global', join(',', @$globalFlags)
3177         if scalar(@$globalFlags);
3178
3179     return wantarray ? ($cmd, $vollist, $spice_port) : $cmd;
3180 }
3181
3182 sub vnc_socket {
3183     my ($vmid) = @_;
3184     return "${var_run_tmpdir}/$vmid.vnc";
3185 }
3186
3187 sub spice_port {
3188     my ($vmid) = @_;
3189
3190     my $res = vm_mon_cmd($vmid, 'query-spice');
3191
3192     return $res->{'tls-port'} || $res->{'port'} || die "no spice port\n";
3193 }
3194
3195 sub qmp_socket {
3196     my ($vmid, $qga) = @_;
3197     my $sockettype = $qga ? 'qga' : 'qmp';
3198     return "${var_run_tmpdir}/$vmid.$sockettype";
3199 }
3200
3201 sub pidfile_name {
3202     my ($vmid) = @_;
3203     return "${var_run_tmpdir}/$vmid.pid";
3204 }
3205
3206 sub vm_devices_list {
3207     my ($vmid) = @_;
3208
3209     my $res = vm_mon_cmd($vmid, 'query-pci');
3210     my $devices = {};
3211     foreach my $pcibus (@$res) {
3212         foreach my $device (@{$pcibus->{devices}}) {
3213             next if !$device->{'qdev_id'};
3214             if ($device->{'pci_bridge'}) {
3215                 $devices->{$device->{'qdev_id'}} = 1;
3216                 foreach my $bridge_device (@{$device->{'pci_bridge'}->{devices}}) {
3217                     next if !$bridge_device->{'qdev_id'};
3218                     $devices->{$bridge_device->{'qdev_id'}} = 1;
3219                     $devices->{$device->{'qdev_id'}}++;
3220                 }
3221             } else {
3222                 $devices->{$device->{'qdev_id'}} = 1;
3223             }
3224         }
3225     }
3226
3227     my $resblock = vm_mon_cmd($vmid, 'query-block');
3228     foreach my $block (@$resblock) {
3229         if($block->{device} =~ m/^drive-(\S+)/){
3230                 $devices->{$1} = 1;
3231         }
3232     }
3233
3234     my $resmice = vm_mon_cmd($vmid, 'query-mice');
3235     foreach my $mice (@$resmice) {
3236         if ($mice->{name} eq 'QEMU HID Tablet') {
3237             $devices->{tablet} = 1;
3238             last;
3239         }
3240     }
3241
3242     return $devices;
3243 }
3244
3245 sub vm_deviceplug {
3246     my ($storecfg, $conf, $vmid, $deviceid, $device) = @_;
3247
3248     my $q35 = machine_type_is_q35($conf);
3249
3250     my $devices_list = vm_devices_list($vmid);
3251     return 1 if defined($devices_list->{$deviceid});
3252
3253     qemu_add_pci_bridge($storecfg, $conf, $vmid, $deviceid); # add PCI bridge if we need it for the device
3254
3255     if ($deviceid eq 'tablet') {
3256
3257         qemu_deviceadd($vmid, print_tabletdevice_full($conf));
3258
3259     } elsif ($deviceid =~ m/^(virtio)(\d+)$/) {
3260
3261         qemu_driveadd($storecfg, $vmid, $device);
3262         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
3263
3264         qemu_deviceadd($vmid, $devicefull);
3265         eval { qemu_deviceaddverify($vmid, $deviceid); };
3266         if (my $err = $@) {
3267             eval { qemu_drivedel($vmid, $deviceid); };
3268             warn $@ if $@;
3269             die $err;
3270         }
3271
3272     } elsif ($deviceid =~ m/^(scsihw)(\d+)$/) {
3273
3274         my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : "lsi";
3275         my $pciaddr = print_pci_addr($deviceid);
3276         my $devicefull = "$scsihw,id=$deviceid$pciaddr";
3277
3278         qemu_deviceadd($vmid, $devicefull);
3279         qemu_deviceaddverify($vmid, $deviceid);
3280
3281     } elsif ($deviceid =~ m/^(scsi)(\d+)$/) {
3282
3283         qemu_findorcreatescsihw($storecfg,$conf, $vmid, $device);
3284         qemu_driveadd($storecfg, $vmid, $device);
3285
3286         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
3287         eval { qemu_deviceadd($vmid, $devicefull); };
3288         if (my $err = $@) {
3289             eval { qemu_drivedel($vmid, $deviceid); };
3290             warn $@ if $@;
3291             die $err;
3292         }
3293
3294     } elsif ($deviceid =~ m/^(net)(\d+)$/) {
3295
3296         return undef if !qemu_netdevadd($vmid, $conf, $device, $deviceid);
3297         my $netdevicefull = print_netdevice_full($vmid, $conf, $device, $deviceid);
3298         qemu_deviceadd($vmid, $netdevicefull);
3299         eval { qemu_deviceaddverify($vmid, $deviceid); };
3300         if (my $err = $@) {
3301             eval { qemu_netdevdel($vmid, $deviceid); };
3302             warn $@ if $@;
3303             die $err;
3304         }
3305
3306     } elsif (!$q35 && $deviceid =~ m/^(pci\.)(\d+)$/) {
3307
3308         my $bridgeid = $2;
3309         my $pciaddr = print_pci_addr($deviceid);
3310         my $devicefull = "pci-bridge,id=pci.$bridgeid,chassis_nr=$bridgeid$pciaddr";
3311
3312         qemu_deviceadd($vmid, $devicefull);
3313         qemu_deviceaddverify($vmid, $deviceid);
3314
3315     } else {
3316         die "can't hotplug device '$deviceid'\n";
3317     }
3318
3319     return 1;
3320 }
3321
3322 # fixme: this should raise exceptions on error!
3323 sub vm_deviceunplug {
3324     my ($vmid, $conf, $deviceid) = @_;
3325
3326     my $devices_list = vm_devices_list($vmid);
3327     return 1 if !defined($devices_list->{$deviceid});
3328
3329     die "can't unplug bootdisk" if $conf->{bootdisk} && $conf->{bootdisk} eq $deviceid;
3330
3331     if ($deviceid eq 'tablet') {
3332
3333         qemu_devicedel($vmid, $deviceid);
3334
3335     } elsif ($deviceid =~ m/^(virtio)(\d+)$/) {
3336
3337         qemu_devicedel($vmid, $deviceid);
3338         qemu_devicedelverify($vmid, $deviceid);
3339         qemu_drivedel($vmid, $deviceid);
3340
3341     } elsif ($deviceid =~ m/^(lsi)(\d+)$/) {
3342
3343         qemu_devicedel($vmid, $deviceid);
3344
3345     } elsif ($deviceid =~ m/^(scsi)(\d+)$/) {
3346
3347         qemu_devicedel($vmid, $deviceid);
3348         qemu_drivedel($vmid, $deviceid);
3349
3350     } elsif ($deviceid =~ m/^(net)(\d+)$/) {
3351
3352         qemu_devicedel($vmid, $deviceid);
3353         qemu_devicedelverify($vmid, $deviceid);
3354         qemu_netdevdel($vmid, $deviceid);
3355
3356     } else {
3357         die "can't unplug device '$deviceid'\n";
3358     }
3359
3360     return 1;
3361 }
3362
3363 sub qemu_deviceadd {
3364     my ($vmid, $devicefull) = @_;
3365
3366     $devicefull = "driver=".$devicefull;
3367     my %options =  split(/[=,]/, $devicefull);
3368
3369     vm_mon_cmd($vmid, "device_add" , %options);
3370 }
3371
3372 sub qemu_devicedel {
3373     my ($vmid, $deviceid) = @_;
3374
3375     my $ret = vm_mon_cmd($vmid, "device_del", id => $deviceid);
3376 }
3377
3378 sub qemu_objectadd {
3379     my($vmid, $objectid, $qomtype) = @_;
3380
3381     vm_mon_cmd($vmid, "object-add", id => $objectid, "qom-type" => $qomtype);
3382
3383     return 1;
3384 }
3385
3386 sub qemu_objectdel {
3387     my($vmid, $objectid) = @_;
3388
3389     vm_mon_cmd($vmid, "object-del", id => $objectid);
3390
3391     return 1;
3392 }
3393
3394 sub qemu_driveadd {
3395     my ($storecfg, $vmid, $device) = @_;
3396
3397     my $drive = print_drive_full($storecfg, $vmid, $device);
3398     $drive =~ s/\\/\\\\/g;
3399     my $ret = vm_human_monitor_command($vmid, "drive_add auto \"$drive\"");
3400
3401     # If the command succeeds qemu prints: "OK"
3402     return 1 if $ret =~ m/OK/s;
3403
3404     die "adding drive failed: $ret\n";
3405 }
3406
3407 sub qemu_drivedel {
3408     my($vmid, $deviceid) = @_;
3409
3410     my $ret = vm_human_monitor_command($vmid, "drive_del drive-$deviceid");
3411     $ret =~ s/^\s+//;
3412
3413     return 1 if $ret eq "";
3414
3415     # NB: device not found errors mean the drive was auto-deleted and we ignore the error
3416     return 1 if $ret =~ m/Device \'.*?\' not found/s;
3417
3418     die "deleting drive $deviceid failed : $ret\n";
3419 }
3420
3421 sub qemu_deviceaddverify {
3422     my ($vmid, $deviceid) = @_;
3423
3424     for (my $i = 0; $i <= 5; $i++) {
3425          my $devices_list = vm_devices_list($vmid);
3426          return 1 if defined($devices_list->{$deviceid});
3427          sleep 1;
3428     }
3429
3430     die "error on hotplug device '$deviceid'\n";
3431 }
3432
3433
3434 sub qemu_devicedelverify {
3435     my ($vmid, $deviceid) = @_;
3436
3437     # need to verify that the device is correctly removed as device_del
3438     # is async and empty return is not reliable
3439
3440     for (my $i = 0; $i <= 5; $i++) {
3441          my $devices_list = vm_devices_list($vmid);
3442          return 1 if !defined($devices_list->{$deviceid});
3443          sleep 1;
3444     }
3445
3446     die "error on hot-unplugging device '$deviceid'\n";
3447 }
3448
3449 sub qemu_findorcreatescsihw {
3450     my ($storecfg, $conf, $vmid, $device) = @_;
3451
3452     my $maxdev = ($conf->{scsihw} && ($conf->{scsihw} !~ m/^lsi/)) ? 256 : 7;
3453     my $controller = int($device->{index} / $maxdev);
3454     my $scsihwid="scsihw$controller";
3455     my $devices_list = vm_devices_list($vmid);
3456
3457     if(!defined($devices_list->{$scsihwid})) {
3458         vm_deviceplug($storecfg, $conf, $vmid, $scsihwid);
3459     }
3460
3461     return 1;
3462 }
3463
3464 sub qemu_add_pci_bridge {
3465     my ($storecfg, $conf, $vmid, $device) = @_;
3466
3467     my $bridges = {};
3468
3469     my $bridgeid;
3470
3471     print_pci_addr($device, $bridges);
3472
3473     while (my ($k, $v) = each %$bridges) {
3474         $bridgeid = $k;
3475     }
3476     return 1 if !defined($bridgeid) || $bridgeid < 1;
3477
3478     my $bridge = "pci.$bridgeid";
3479     my $devices_list = vm_devices_list($vmid);
3480
3481     if (!defined($devices_list->{$bridge})) {
3482         vm_deviceplug($storecfg, $conf, $vmid, $bridge);
3483     }
3484
3485     return 1;
3486 }
3487
3488 sub qemu_set_link_status {
3489     my ($vmid, $device, $up) = @_;
3490
3491     vm_mon_cmd($vmid, "set_link", name => $device,
3492                up => $up ? JSON::true : JSON::false);
3493 }
3494
3495 sub qemu_netdevadd {
3496     my ($vmid, $conf, $device, $deviceid) = @_;
3497
3498     my $netdev = print_netdev_full($vmid, $conf, $device, $deviceid);
3499     my %options =  split(/[=,]/, $netdev);
3500
3501     vm_mon_cmd($vmid, "netdev_add",  %options);
3502     return 1;
3503 }
3504
3505 sub qemu_netdevdel {
3506     my ($vmid, $deviceid) = @_;
3507
3508     vm_mon_cmd($vmid, "netdev_del", id => $deviceid);
3509 }
3510
3511 sub qemu_cpu_hotplug {
3512     my ($vmid, $conf, $vcpus) = @_;
3513
3514     my $sockets = 1;
3515     $sockets = $conf->{smp} if $conf->{smp}; # old style - no longer iused
3516     $sockets = $conf->{sockets} if  $conf->{sockets};
3517     my $cores = $conf->{cores} || 1;
3518     my $maxcpus = $sockets * $cores;
3519
3520     $vcpus = $maxcpus if !$vcpus;
3521
3522     die "you can't add more vcpus than maxcpus\n"
3523         if $vcpus > $maxcpus;
3524
3525     my $currentvcpus = $conf->{vcpus} || $maxcpus;
3526     die "online cpu unplug is not yet possible\n"
3527         if $vcpus < $currentvcpus;
3528
3529     my $currentrunningvcpus = vm_mon_cmd($vmid, "query-cpus");
3530     die "vcpus in running vm is different than configuration\n"
3531         if scalar(@{$currentrunningvcpus}) != $currentvcpus;
3532
3533     for (my $i = $currentvcpus; $i < $vcpus; $i++) {
3534         vm_mon_cmd($vmid, "cpu-add", id => int($i));
3535     }
3536 }
3537
3538 sub qemu_memory_hotplug {
3539     my ($vmid, $conf, $defaults, $opt, $value) = @_;
3540
3541     return $value if !check_running($vmid);
3542
3543     my $memory = $conf->{memory} || $defaults->{memory};
3544     $value = $defaults->{memory} if !$value;
3545     return $value if $value == $memory;
3546
3547     my $static_memory = $STATICMEM;
3548     my $dimm_memory = $memory - $static_memory;
3549
3550     die "memory can't be lower than $static_memory MB" if $value < $static_memory;
3551     die "memory unplug is not yet available" if $value < $memory;
3552     die "you cannot add more memory than $MAX_MEM MB!\n" if $memory > $MAX_MEM;
3553
3554
3555     my $sockets = 1;
3556     $sockets = $conf->{sockets} if $conf->{sockets};
3557
3558     foreach_dimm($conf, $vmid, $value, $sockets, sub {
3559         my ($conf, $vmid, $name, $dimm_size, $numanode, $current_size, $memory) = @_;
3560
3561             return if $current_size <= $conf->{memory};
3562
3563             eval { vm_mon_cmd($vmid, "object-add", 'qom-type' => "memory-backend-ram", id => "mem-$name", props => { size => int($dimm_size*1024*1024) } ) };
3564             if (my $err = $@) {
3565                 eval { qemu_objectdel($vmid, "mem-$name"); };
3566                 die $err;
3567             }
3568
3569             eval { vm_mon_cmd($vmid, "device_add", driver => "pc-dimm", id => "$name", memdev => "mem-$name", node => $numanode) };
3570             if (my $err = $@) {
3571                 eval { qemu_objectdel($vmid, "mem-$name"); };
3572                 die $err;
3573             }
3574             #update conf after each succesful module hotplug
3575             $conf->{memory} = $current_size;
3576             update_config_nolock($vmid, $conf, 1);
3577     });
3578 }
3579
3580 sub qemu_block_set_io_throttle {
3581     my ($vmid, $deviceid, $bps, $bps_rd, $bps_wr, $iops, $iops_rd, $iops_wr) = @_;
3582
3583     return if !check_running($vmid) ;
3584
3585     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($iops_wr));
3586
3587 }
3588
3589 # old code, only used to shutdown old VM after update
3590 sub __read_avail {
3591     my ($fh, $timeout) = @_;
3592
3593     my $sel = new IO::Select;
3594     $sel->add($fh);
3595
3596     my $res = '';
3597     my $buf;
3598
3599     my @ready;
3600     while (scalar (@ready = $sel->can_read($timeout))) {
3601         my $count;
3602         if ($count = $fh->sysread($buf, 8192)) {
3603             if ($buf =~ /^(.*)\(qemu\) $/s) {
3604                 $res .= $1;
3605                 last;
3606             } else {
3607                 $res .= $buf;
3608             }
3609         } else {
3610             if (!defined($count)) {
3611                 die "$!\n";
3612             }
3613             last;
3614         }
3615     }
3616
3617     die "monitor read timeout\n" if !scalar(@ready);
3618
3619     return $res;
3620 }
3621
3622 # old code, only used to shutdown old VM after update
3623 sub vm_monitor_command {
3624     my ($vmid, $cmdstr, $nocheck) = @_;
3625
3626     my $res;
3627
3628     eval {
3629         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
3630
3631         my $sname = "${var_run_tmpdir}/$vmid.mon";
3632
3633         my $sock = IO::Socket::UNIX->new( Peer => $sname ) ||
3634             die "unable to connect to VM $vmid socket - $!\n";
3635
3636         my $timeout = 3;
3637
3638         # hack: migrate sometime blocks the monitor (when migrate_downtime
3639         # is set)
3640         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
3641             $timeout = 60*60; # 1 hour
3642         }
3643
3644         # read banner;
3645         my $data = __read_avail($sock, $timeout);
3646
3647         if ($data !~ m/^QEMU\s+(\S+)\s+monitor\s/) {
3648             die "got unexpected qemu monitor banner\n";
3649         }
3650
3651         my $sel = new IO::Select;
3652         $sel->add($sock);
3653
3654         if (!scalar(my @ready = $sel->can_write($timeout))) {
3655             die "monitor write error - timeout";
3656         }
3657
3658         my $fullcmd = "$cmdstr\r";
3659
3660         # syslog('info', "VM $vmid monitor command: $cmdstr");
3661
3662         my $b;
3663         if (!($b = $sock->syswrite($fullcmd)) || ($b != length($fullcmd))) {
3664             die "monitor write error - $!";
3665         }
3666
3667         return if ($cmdstr eq 'q') || ($cmdstr eq 'quit');
3668
3669         $timeout = 20;
3670
3671         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
3672             $timeout = 60*60; # 1 hour
3673         } elsif ($cmdstr =~ m/^(eject|change)/) {
3674             $timeout = 60; # note: cdrom mount command is slow
3675         }
3676         if ($res = __read_avail($sock, $timeout)) {
3677
3678             my @lines = split("\r?\n", $res);
3679
3680             shift @lines if $lines[0] !~ m/^unknown command/; # skip echo
3681
3682             $res = join("\n", @lines);
3683             $res .= "\n";
3684         }
3685     };
3686
3687     my $err = $@;
3688
3689     if ($err) {
3690         syslog("err", "VM $vmid monitor command failed - $err");
3691         die $err;
3692     }
3693
3694     return $res;
3695 }
3696
3697 sub qemu_block_resize {
3698     my ($vmid, $deviceid, $storecfg, $volid, $size) = @_;
3699
3700     my $running = check_running($vmid);
3701
3702     return if !PVE::Storage::volume_resize($storecfg, $volid, $size, $running);
3703
3704     return if !$running;
3705
3706     vm_mon_cmd($vmid, "block_resize", device => $deviceid, size => int($size));
3707
3708 }
3709
3710 sub qemu_volume_snapshot {
3711     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
3712
3713     my $running = check_running($vmid);
3714
3715     return if !PVE::Storage::volume_snapshot($storecfg, $volid, $snap, $running);
3716
3717     return if !$running;
3718
3719     vm_mon_cmd($vmid, "snapshot-drive", device => $deviceid, name => $snap);
3720
3721 }
3722
3723 sub qemu_volume_snapshot_delete {
3724     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
3725
3726     my $running = check_running($vmid);
3727
3728     return if !PVE::Storage::volume_snapshot_delete($storecfg, $volid, $snap, $running);
3729
3730     return if !$running;
3731
3732     vm_mon_cmd($vmid, "delete-drive-snapshot", device => $deviceid, name => $snap);
3733 }
3734
3735 sub set_migration_caps {
3736     my ($vmid) = @_;
3737
3738     my $cap_ref = [];
3739
3740     my $enabled_cap = {
3741         "auto-converge" => 1,
3742         "xbzrle" => 0,
3743         "x-rdma-pin-all" => 0,
3744         "zero-blocks" => 0,
3745     };
3746
3747     my $supported_capabilities = vm_mon_cmd_nocheck($vmid, "query-migrate-capabilities");
3748
3749     for my $supported_capability (@$supported_capabilities) {
3750         push @$cap_ref, {
3751             capability => $supported_capability->{capability},
3752             state => $enabled_cap->{$supported_capability->{capability}} ? JSON::true : JSON::false,
3753         };
3754     }
3755
3756     vm_mon_cmd_nocheck($vmid, "migrate-set-capabilities", capabilities => $cap_ref);
3757 }
3758
3759 my $fast_plug_option = {
3760     'lock' => 1,
3761     'name' => 1,
3762     'onboot' => 1,
3763     'shares' => 1,
3764     'startup' => 1,
3765 };
3766
3767 # hotplug changes in [PENDING]
3768 # $selection hash can be used to only apply specified options, for
3769 # example: { cores => 1 } (only apply changed 'cores')
3770 # $errors ref is used to return error messages
3771 sub vmconfig_hotplug_pending {
3772     my ($vmid, $conf, $storecfg, $selection, $errors) = @_;
3773
3774     my $defaults = load_defaults();
3775
3776     # commit values which do not have any impact on running VM first
3777     # Note: those option cannot raise errors, we we do not care about
3778     # $selection and always apply them.
3779
3780     my $add_error = sub {
3781         my ($opt, $msg) = @_;
3782         $errors->{$opt} = "hotplug problem - $msg";
3783     };
3784
3785     my $changes = 0;
3786     foreach my $opt (keys %{$conf->{pending}}) { # add/change
3787         if ($fast_plug_option->{$opt}) {
3788             $conf->{$opt} = $conf->{pending}->{$opt};
3789             delete $conf->{pending}->{$opt};
3790             $changes = 1;
3791         }
3792     }
3793
3794     if ($changes) {
3795         update_config_nolock($vmid, $conf, 1);
3796         $conf = load_config($vmid); # update/reload
3797     }
3798
3799     my $hotplug_features = parse_hotplug_features(defined($conf->{hotplug}) ? $conf->{hotplug} : '1');
3800
3801     my @delete = PVE::Tools::split_list($conf->{pending}->{delete});
3802     foreach my $opt (@delete) {
3803         next if $selection && !$selection->{$opt};
3804         eval {
3805             if ($opt eq 'hotplug') {
3806                 die "skip\n" if ($conf->{hotplug} =~ /memory/);
3807             } elsif ($opt eq 'tablet') {
3808                 die "skip\n" if !$hotplug_features->{usb};
3809                 if ($defaults->{tablet}) {
3810                     vm_deviceplug($storecfg, $conf, $vmid, $opt);
3811                 } else {
3812                     vm_deviceunplug($vmid, $conf, $opt);
3813                 }
3814             } elsif ($opt eq 'vcpus') {
3815                 die "skip\n" if !$hotplug_features->{cpu};
3816                 qemu_cpu_hotplug($vmid, $conf, undef);
3817             } elsif ($opt eq 'balloon') {
3818                 # enable balloon device is not hotpluggable
3819                 die "skip\n" if !defined($conf->{balloon}) || $conf->{balloon};
3820             } elsif ($fast_plug_option->{$opt}) {
3821                 # do nothing
3822             } elsif ($opt =~ m/^net(\d+)$/) {
3823                 die "skip\n" if !$hotplug_features->{network};
3824                 vm_deviceunplug($vmid, $conf, $opt);
3825             } elsif (valid_drivename($opt)) {
3826                 die "skip\n" if !$hotplug_features->{disk} || $opt =~ m/(ide|sata)(\d+)/;
3827                 vm_deviceunplug($vmid, $conf, $opt);
3828                 vmconfig_register_unused_drive($storecfg, $vmid, $conf, parse_drive($opt, $conf->{$opt}));
3829             } elsif ($opt =~ m/^memory$/) {
3830                 die "skip\n" if !$hotplug_features->{memory};
3831                 qemu_memory_hotplug($vmid, $conf, $defaults, $opt);
3832             } else {
3833                 die "skip\n";
3834             }
3835         };
3836         if (my $err = $@) {
3837             &$add_error($opt, $err) if $err ne "skip\n";
3838         } else {
3839             # save new config if hotplug was successful
3840             delete $conf->{$opt};
3841             vmconfig_undelete_pending_option($conf, $opt);
3842             update_config_nolock($vmid, $conf, 1);
3843             $conf = load_config($vmid); # update/reload
3844         }
3845     }
3846
3847     foreach my $opt (keys %{$conf->{pending}}) {
3848         next if $selection && !$selection->{$opt};
3849         my $value = $conf->{pending}->{$opt};
3850         eval {
3851             if ($opt eq 'hotplug') {
3852                 die "skip\n" if ($value =~ /memory/) || ($value !~ /memory/ && $conf->{hotplug} =~ /memory/);
3853             } elsif ($opt eq 'tablet') {
3854                 die "skip\n" if !$hotplug_features->{usb};
3855                 if ($value == 1) {
3856                     vm_deviceplug($storecfg, $conf, $vmid, $opt);
3857                 } elsif ($value == 0) {
3858                     vm_deviceunplug($vmid, $conf, $opt);
3859                 }
3860             } elsif ($opt eq 'vcpus') {
3861                 die "skip\n" if !$hotplug_features->{cpu};
3862                 qemu_cpu_hotplug($vmid, $conf, $value);
3863             } elsif ($opt eq 'balloon') {
3864                 # enable/disable balloning device is not hotpluggable
3865                 my $old_balloon_enabled =  !!(!defined($conf->{balloon}) || $conf->{balloon});
3866                 my $new_balloon_enabled =  !!(!defined($conf->{pending}->{balloon}) || $conf->{pending}->{balloon});
3867                 die "skip\n" if $old_balloon_enabled != $new_balloon_enabled;
3868
3869                 # allow manual ballooning if shares is set to zero
3870                 if ((defined($conf->{shares}) && ($conf->{shares} == 0))) {
3871                     my $balloon = $conf->{pending}->{balloon} || $conf->{memory} || $defaults->{memory};
3872                     vm_mon_cmd($vmid, "balloon", value => $balloon*1024*1024);
3873                 }
3874             } elsif ($opt =~ m/^net(\d+)$/) {
3875                 # some changes can be done without hotplug
3876                 vmconfig_update_net($storecfg, $conf, $hotplug_features->{network},
3877                                     $vmid, $opt, $value);
3878             } elsif (valid_drivename($opt)) {
3879                 # some changes can be done without hotplug
3880                 vmconfig_update_disk($storecfg, $conf, $hotplug_features->{disk},
3881                                      $vmid, $opt, $value, 1);
3882             } elsif ($opt =~ m/^memory$/) { #dimms
3883                 die "skip\n" if !$hotplug_features->{memory};
3884                 $value = qemu_memory_hotplug($vmid, $conf, $defaults, $opt, $value);
3885             } else {
3886                 die "skip\n";  # skip non-hot-pluggable options
3887             }
3888         };
3889         if (my $err = $@) {
3890             &$add_error($opt, $err) if $err ne "skip\n";
3891         } else {
3892             # save new config if hotplug was successful
3893             $conf->{$opt} = $value;
3894             delete $conf->{pending}->{$opt};
3895             update_config_nolock($vmid, $conf, 1);
3896             $conf = load_config($vmid); # update/reload
3897         }
3898     }
3899 }
3900
3901 sub vmconfig_apply_pending {
3902     my ($vmid, $conf, $storecfg) = @_;
3903
3904     # cold plug
3905
3906     my @delete = PVE::Tools::split_list($conf->{pending}->{delete});
3907     foreach my $opt (@delete) { # delete
3908         die "internal error" if $opt =~ m/^unused/;
3909         $conf = load_config($vmid); # update/reload
3910         if (!defined($conf->{$opt})) {
3911             vmconfig_undelete_pending_option($conf, $opt);
3912             update_config_nolock($vmid, $conf, 1);
3913         } elsif (valid_drivename($opt)) {
3914             vmconfig_register_unused_drive($storecfg, $vmid, $conf, parse_drive($opt, $conf->{$opt}));
3915             vmconfig_undelete_pending_option($conf, $opt);
3916             delete $conf->{$opt};
3917             update_config_nolock($vmid, $conf, 1);
3918         } else {
3919             vmconfig_undelete_pending_option($conf, $opt);
3920             delete $conf->{$opt};
3921             update_config_nolock($vmid, $conf, 1);
3922         }
3923     }
3924
3925     $conf = load_config($vmid); # update/reload
3926
3927     foreach my $opt (keys %{$conf->{pending}}) { # add/change
3928         $conf = load_config($vmid); # update/reload
3929
3930         if (defined($conf->{$opt}) && ($conf->{$opt} eq $conf->{pending}->{$opt})) {
3931             # skip if nothing changed
3932         } elsif (valid_drivename($opt)) {
3933             vmconfig_register_unused_drive($storecfg, $vmid, $conf, parse_drive($opt, $conf->{$opt}))
3934                 if defined($conf->{$opt});
3935             $conf->{$opt} = $conf->{pending}->{$opt};
3936         } else {
3937             $conf->{$opt} = $conf->{pending}->{$opt};
3938         }
3939
3940         delete $conf->{pending}->{$opt};
3941         update_config_nolock($vmid, $conf, 1);
3942     }
3943 }
3944
3945 my $safe_num_ne = sub {
3946     my ($a, $b) = @_;
3947
3948     return 0 if !defined($a) && !defined($b);
3949     return 1 if !defined($a);
3950     return 1 if !defined($b);
3951
3952     return $a != $b;
3953 };
3954
3955 my $safe_string_ne = sub {
3956     my ($a, $b) = @_;
3957
3958     return 0 if !defined($a) && !defined($b);
3959     return 1 if !defined($a);
3960     return 1 if !defined($b);
3961
3962     return $a ne $b;
3963 };
3964
3965 sub vmconfig_update_net {
3966     my ($storecfg, $conf, $hotplug, $vmid, $opt, $value) = @_;
3967
3968     my $newnet = parse_net($value);
3969
3970     if ($conf->{$opt}) {
3971         my $oldnet = parse_net($conf->{$opt});
3972
3973         if (&$safe_string_ne($oldnet->{model}, $newnet->{model}) ||
3974             &$safe_string_ne($oldnet->{macaddr}, $newnet->{macaddr}) ||
3975             &$safe_num_ne($oldnet->{queues}, $newnet->{queues}) ||
3976             !($newnet->{bridge} && $oldnet->{bridge})) { # bridge/nat mode change
3977
3978             # for non online change, we try to hot-unplug
3979             die "skip\n" if !$hotplug;
3980             vm_deviceunplug($vmid, $conf, $opt);
3981         } else {
3982
3983             die "internal error" if $opt !~ m/net(\d+)/;
3984             my $iface = "tap${vmid}i$1";
3985
3986             if (&$safe_num_ne($oldnet->{rate}, $newnet->{rate})) {
3987                 PVE::Network::tap_rate_limit($iface, $newnet->{rate});
3988             }
3989
3990             if (&$safe_string_ne($oldnet->{bridge}, $newnet->{bridge}) ||
3991                 &$safe_num_ne($oldnet->{tag}, $newnet->{tag}) ||
3992                 &$safe_num_ne($oldnet->{firewall}, $newnet->{firewall})) {
3993                 PVE::Network::tap_unplug($iface);
3994                 PVE::Network::tap_plug($iface, $newnet->{bridge}, $newnet->{tag}, $newnet->{firewall});
3995             }
3996
3997             if (&$safe_string_ne($oldnet->{link_down}, $newnet->{link_down})) {
3998                 qemu_set_link_status($vmid, $opt, !$newnet->{link_down});
3999             }
4000
4001             return 1;
4002         }
4003     }
4004
4005     if ($hotplug) {
4006         vm_deviceplug($storecfg, $conf, $vmid, $opt, $newnet);
4007     } else {
4008         die "skip\n";
4009     }
4010 }
4011
4012 sub vmconfig_update_disk {
4013     my ($storecfg, $conf, $hotplug, $vmid, $opt, $value, $force) = @_;
4014
4015     # fixme: do we need force?
4016
4017     my $drive = parse_drive($opt, $value);
4018
4019     if ($conf->{$opt}) {
4020
4021         if (my $old_drive = parse_drive($opt, $conf->{$opt}))  {
4022
4023             my $media = $drive->{media} || 'disk';
4024             my $oldmedia = $old_drive->{media} || 'disk';
4025             die "unable to change media type\n" if $media ne $oldmedia;
4026
4027             if (!drive_is_cdrom($old_drive)) {
4028
4029                 if ($drive->{file} ne $old_drive->{file}) {
4030
4031                     die "skip\n" if !$hotplug;
4032
4033                     # unplug and register as unused
4034                     vm_deviceunplug($vmid, $conf, $opt);
4035                     vmconfig_register_unused_drive($storecfg, $vmid, $conf, $old_drive)
4036
4037                 } else {
4038                     # update existing disk
4039
4040                     # skip non hotpluggable value
4041                     if (&$safe_num_ne($drive->{discard}, $old_drive->{discard}) ||
4042                         &$safe_string_ne($drive->{cache}, $old_drive->{cache})) {
4043                         die "skip\n";
4044                     }
4045
4046                     # apply throttle
4047                     if (&$safe_num_ne($drive->{mbps}, $old_drive->{mbps}) ||
4048                         &$safe_num_ne($drive->{mbps_rd}, $old_drive->{mbps_rd}) ||
4049                         &$safe_num_ne($drive->{mbps_wr}, $old_drive->{mbps_wr}) ||
4050                         &$safe_num_ne($drive->{iops}, $old_drive->{iops}) ||
4051                         &$safe_num_ne($drive->{iops_rd}, $old_drive->{iops_rd}) ||
4052                         &$safe_num_ne($drive->{iops_wr}, $old_drive->{iops_wr}) ||
4053                         &$safe_num_ne($drive->{mbps_max}, $old_drive->{mbps_max}) ||
4054                         &$safe_num_ne($drive->{mbps_rd_max}, $old_drive->{mbps_rd_max}) ||
4055                         &$safe_num_ne($drive->{mbps_wr_max}, $old_drive->{mbps_wr_max}) ||
4056                         &$safe_num_ne($drive->{iops_max}, $old_drive->{iops_max}) ||
4057                         &$safe_num_ne($drive->{iops_rd_max}, $old_drive->{iops_rd_max}) ||
4058                         &$safe_num_ne($drive->{iops_wr_max}, $old_drive->{iops_wr_max})) {
4059
4060                         qemu_block_set_io_throttle($vmid,"drive-$opt",
4061                                                    ($drive->{mbps} || 0)*1024*1024,
4062                                                    ($drive->{mbps_rd} || 0)*1024*1024,
4063                                                    ($drive->{mbps_wr} || 0)*1024*1024,
4064                                                    $drive->{iops} || 0,
4065                                                    $drive->{iops_rd} || 0,
4066                                                    $drive->{iops_wr} || 0,
4067                                                    ($drive->{mbps_max} || 0)*1024*1024,
4068                                                    ($drive->{mbps_rd_max} || 0)*1024*1024,
4069                                                    ($drive->{mbps_wr_max} || 0)*1024*1024,
4070                                                    $drive->{iops_max} || 0,
4071                                                    $drive->{iops_rd_max} || 0,
4072                                                    $drive->{iops_wr_max} || 0);
4073
4074                     }
4075
4076                     return 1;
4077                 }
4078
4079             } else { # cdrom
4080
4081                 if ($drive->{file} eq 'none') {
4082                     vm_mon_cmd($vmid, "eject",force => JSON::true,device => "drive-$opt");
4083                 } else {
4084                     my $path = get_iso_path($storecfg, $vmid, $drive->{file});
4085                     vm_mon_cmd($vmid, "eject", force => JSON::true,device => "drive-$opt"); # force eject if locked
4086                     vm_mon_cmd($vmid, "change", device => "drive-$opt",target => "$path") if $path;
4087                 }
4088
4089                 return 1;
4090             }
4091         }
4092     }
4093
4094     die "skip\n" if !$hotplug || $opt =~ m/(ide|sata)(\d+)/;
4095     # hotplug new disks
4096     vm_deviceplug($storecfg, $conf, $vmid, $opt, $drive);
4097 }
4098
4099 sub vm_start {
4100     my ($storecfg, $vmid, $statefile, $skiplock, $migratedfrom, $paused, $forcemachine, $spice_ticket) = @_;
4101
4102     lock_config($vmid, sub {
4103         my $conf = load_config($vmid, $migratedfrom);
4104
4105         die "you can't start a vm if it's a template\n" if is_template($conf);
4106
4107         check_lock($conf) if !$skiplock;
4108
4109         die "VM $vmid already running\n" if check_running($vmid, undef, $migratedfrom);
4110
4111         if (!$statefile && scalar(keys %{$conf->{pending}})) {
4112             vmconfig_apply_pending($vmid, $conf, $storecfg);
4113             $conf = load_config($vmid); # update/reload
4114         }
4115
4116         my $defaults = load_defaults();
4117
4118         # set environment variable useful inside network script
4119         $ENV{PVE_MIGRATED_FROM} = $migratedfrom if $migratedfrom;
4120
4121         my ($cmd, $vollist, $spice_port) = config_to_command($storecfg, $vmid, $conf, $defaults, $forcemachine);
4122
4123         my $migrate_port = 0;
4124         my $migrate_uri;
4125         if ($statefile) {
4126             if ($statefile eq 'tcp') {
4127                 my $localip = "localhost";
4128                 my $datacenterconf = PVE::Cluster::cfs_read_file('datacenter.cfg');
4129                 if ($datacenterconf->{migration_unsecure}) {
4130                         my $nodename = PVE::INotify::nodename();
4131                         $localip = PVE::Cluster::remote_node_ip($nodename, 1);
4132                 }
4133                 $migrate_port = PVE::Tools::next_migrate_port();
4134                 $migrate_uri = "tcp:${localip}:${migrate_port}";
4135                 push @$cmd, '-incoming', $migrate_uri;
4136                 push @$cmd, '-S';
4137             } else {
4138                 push @$cmd, '-loadstate', $statefile;
4139             }
4140         } elsif ($paused) {
4141             push @$cmd, '-S';
4142         }
4143
4144         # host pci devices
4145         for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
4146           my $d = parse_hostpci($conf->{"hostpci$i"});
4147           next if !$d;
4148           my $pcidevices = $d->{pciid};
4149           foreach my $pcidevice (@$pcidevices) {
4150                 my $pciid = $pcidevice->{id}.".".$pcidevice->{function};
4151
4152                 my $info = pci_device_info("0000:$pciid");
4153                 die "IOMMU not present\n" if !check_iommu_support();
4154                 die "no pci device info for device '$pciid'\n" if !$info;
4155
4156                 if ($d->{driver} && $d->{driver} eq "vfio") {
4157                     die "can't unbind/bind pci group to vfio '$pciid'\n" if !pci_dev_group_bind_to_vfio($pciid);
4158                 } else {
4159                     die "can't unbind/bind to stub pci device '$pciid'\n" if !pci_dev_bind_to_stub($info);
4160                 }
4161
4162                 die "can't reset pci device '$pciid'\n" if $info->{has_fl_reset} and !pci_dev_reset($info);
4163           }
4164         }
4165
4166         PVE::Storage::activate_volumes($storecfg, $vollist);
4167
4168         eval  { run_command($cmd, timeout => $statefile ? undef : 30,
4169                     umask => 0077); };
4170         my $err = $@;
4171         die "start failed: $err" if $err;
4172
4173         print "migration listens on $migrate_uri\n" if $migrate_uri;
4174
4175         if ($statefile && $statefile ne 'tcp')  {
4176             eval { vm_mon_cmd_nocheck($vmid, "cont"); };
4177             warn $@ if $@;
4178         }
4179
4180         if ($migratedfrom) {
4181
4182             eval {
4183                 set_migration_caps($vmid);
4184             };
4185             warn $@ if $@;
4186
4187             if ($spice_port) {
4188                 print "spice listens on port $spice_port\n";
4189                 if ($spice_ticket) {
4190                     vm_mon_cmd_nocheck($vmid, "set_password", protocol => 'spice', password => $spice_ticket);
4191                     vm_mon_cmd_nocheck($vmid, "expire_password", protocol => 'spice', time => "+30");
4192                 }
4193             }
4194
4195         } else {
4196
4197             if (!$statefile && (!defined($conf->{balloon}) || $conf->{balloon})) {
4198                 vm_mon_cmd_nocheck($vmid, "balloon", value => $conf->{balloon}*1024*1024)
4199                     if $conf->{balloon};
4200             }
4201
4202             foreach my $opt (keys %$conf) {
4203                 next if $opt !~  m/^net\d+$/;
4204                 my $nicconf = parse_net($conf->{$opt});
4205                 qemu_set_link_status($vmid, $opt, 0) if $nicconf->{link_down};
4206             }
4207         }
4208
4209         vm_mon_cmd_nocheck($vmid, 'qom-set',
4210                     path => "machine/peripheral/balloon0",
4211                     property => "guest-stats-polling-interval",
4212                     value => 2) if (!defined($conf->{balloon}) || $conf->{balloon});
4213
4214     });
4215 }
4216
4217 sub vm_mon_cmd {
4218     my ($vmid, $execute, %params) = @_;
4219
4220     my $cmd = { execute => $execute, arguments => \%params };
4221     vm_qmp_command($vmid, $cmd);
4222 }
4223
4224 sub vm_mon_cmd_nocheck {
4225     my ($vmid, $execute, %params) = @_;
4226
4227     my $cmd = { execute => $execute, arguments => \%params };
4228     vm_qmp_command($vmid, $cmd, 1);
4229 }
4230
4231 sub vm_qmp_command {
4232     my ($vmid, $cmd, $nocheck) = @_;
4233
4234     my $res;
4235
4236     my $timeout;
4237     if ($cmd->{arguments} && $cmd->{arguments}->{timeout}) {
4238         $timeout = $cmd->{arguments}->{timeout};
4239         delete $cmd->{arguments}->{timeout};
4240     }
4241
4242     eval {
4243         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
4244         my $sname = qmp_socket($vmid);
4245         if (-e $sname) { # test if VM is reasonambe new and supports qmp/qga
4246             my $qmpclient = PVE::QMPClient->new();
4247
4248             $res = $qmpclient->cmd($vmid, $cmd, $timeout);
4249         } elsif (-e "${var_run_tmpdir}/$vmid.mon") {
4250             die "can't execute complex command on old monitor - stop/start your vm to fix the problem\n"
4251                 if scalar(%{$cmd->{arguments}});
4252             vm_monitor_command($vmid, $cmd->{execute}, $nocheck);
4253         } else {
4254             die "unable to open monitor socket\n";
4255         }
4256     };
4257     if (my $err = $@) {
4258         syslog("err", "VM $vmid qmp command failed - $err");
4259         die $err;
4260     }
4261
4262     return $res;
4263 }
4264
4265 sub vm_human_monitor_command {
4266     my ($vmid, $cmdline) = @_;
4267
4268     my $res;
4269
4270     my $cmd = {
4271         execute => 'human-monitor-command',
4272         arguments => { 'command-line' => $cmdline},
4273     };
4274
4275     return vm_qmp_command($vmid, $cmd);
4276 }
4277
4278 sub vm_commandline {
4279     my ($storecfg, $vmid) = @_;
4280
4281     my $conf = load_config($vmid);
4282
4283     my $defaults = load_defaults();
4284
4285     my $cmd = config_to_command($storecfg, $vmid, $conf, $defaults);
4286
4287     return join(' ', @$cmd);
4288 }
4289
4290 sub vm_reset {
4291     my ($vmid, $skiplock) = @_;
4292
4293     lock_config($vmid, sub {
4294
4295         my $conf = load_config($vmid);
4296
4297         check_lock($conf) if !$skiplock;
4298
4299         vm_mon_cmd($vmid, "system_reset");
4300     });
4301 }
4302
4303 sub get_vm_volumes {
4304     my ($conf) = @_;
4305
4306     my $vollist = [];
4307     foreach_volid($conf, sub {
4308         my ($volid, $is_cdrom) = @_;
4309
4310         return if $volid =~ m|^/|;
4311
4312         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
4313         return if !$sid;
4314
4315         push @$vollist, $volid;
4316     });
4317
4318     return $vollist;
4319 }
4320
4321 sub vm_stop_cleanup {
4322     my ($storecfg, $vmid, $conf, $keepActive, $apply_pending_changes) = @_;
4323
4324     eval {
4325         fairsched_rmnod($vmid); # try to destroy group
4326
4327         if (!$keepActive) {
4328             my $vollist = get_vm_volumes($conf);
4329             PVE::Storage::deactivate_volumes($storecfg, $vollist);
4330         }
4331
4332         foreach my $ext (qw(mon qmp pid vnc qga)) {
4333             unlink "/var/run/qemu-server/${vmid}.$ext";
4334         }
4335
4336         vmconfig_apply_pending($vmid, $conf, $storecfg) if $apply_pending_changes;
4337     };
4338     warn $@ if $@; # avoid errors - just warn
4339 }
4340
4341 # Note: use $nockeck to skip tests if VM configuration file exists.
4342 # We need that when migration VMs to other nodes (files already moved)
4343 # Note: we set $keepActive in vzdump stop mode - volumes need to stay active
4344 sub vm_stop {
4345     my ($storecfg, $vmid, $skiplock, $nocheck, $timeout, $shutdown, $force, $keepActive, $migratedfrom) = @_;
4346
4347     $force = 1 if !defined($force) && !$shutdown;
4348
4349     if ($migratedfrom){
4350         my $pid = check_running($vmid, $nocheck, $migratedfrom);
4351         kill 15, $pid if $pid;
4352         my $conf = load_config($vmid, $migratedfrom);
4353         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive, 0);
4354         return;
4355     }
4356
4357     lock_config($vmid, sub {
4358
4359         my $pid = check_running($vmid, $nocheck);
4360         return if !$pid;
4361
4362         my $conf;
4363         if (!$nocheck) {
4364             $conf = load_config($vmid);
4365             check_lock($conf) if !$skiplock;
4366             if (!defined($timeout) && $shutdown && $conf->{startup}) {
4367                 my $opts = parse_startup($conf->{startup});
4368                 $timeout = $opts->{down} if $opts->{down};
4369             }
4370         }
4371
4372         $timeout = 60 if !defined($timeout);
4373
4374         eval {
4375             if ($shutdown) {
4376                 if (defined($conf) && $conf->{agent}) {
4377                     vm_qmp_command($vmid, { execute => "guest-shutdown" }, $nocheck);
4378                 } else {
4379                     vm_qmp_command($vmid, { execute => "system_powerdown" }, $nocheck);
4380                 }
4381             } else {
4382                 vm_qmp_command($vmid, { execute => "quit" }, $nocheck);
4383             }
4384         };
4385         my $err = $@;
4386
4387         if (!$err) {
4388             my $count = 0;
4389             while (($count < $timeout) && check_running($vmid, $nocheck)) {
4390                 $count++;
4391                 sleep 1;
4392             }
4393
4394             if ($count >= $timeout) {
4395                 if ($force) {
4396                     warn "VM still running - terminating now with SIGTERM\n";
4397                     kill 15, $pid;
4398                 } else {
4399                     die "VM quit/powerdown failed - got timeout\n";
4400                 }
4401             } else {
4402                 vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive, 1) if $conf;
4403                 return;
4404             }
4405         } else {
4406             if ($force) {
4407                 warn "VM quit/powerdown failed - terminating now with SIGTERM\n";
4408                 kill 15, $pid;
4409             } else {
4410                 die "VM quit/powerdown failed\n";
4411             }
4412         }
4413
4414         # wait again
4415         $timeout = 10;
4416
4417         my $count = 0;
4418         while (($count < $timeout) && check_running($vmid, $nocheck)) {
4419             $count++;
4420             sleep 1;
4421         }
4422
4423         if ($count >= $timeout) {
4424             warn "VM still running - terminating now with SIGKILL\n";
4425             kill 9, $pid;
4426             sleep 1;
4427         }
4428
4429         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive, 1) if $conf;
4430    });
4431 }
4432
4433 sub vm_suspend {
4434     my ($vmid, $skiplock) = @_;
4435
4436     lock_config($vmid, sub {
4437
4438         my $conf = load_config($vmid);
4439
4440         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
4441
4442         vm_mon_cmd($vmid, "stop");
4443     });
4444 }
4445
4446 sub vm_resume {
4447     my ($vmid, $skiplock) = @_;
4448
4449     lock_config($vmid, sub {
4450
4451         my $conf = load_config($vmid);
4452
4453         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
4454
4455         vm_mon_cmd($vmid, "cont");
4456     });
4457 }
4458
4459 sub vm_sendkey {
4460     my ($vmid, $skiplock, $key) = @_;
4461
4462     lock_config($vmid, sub {
4463
4464         my $conf = load_config($vmid);
4465
4466         # there is no qmp command, so we use the human monitor command
4467         vm_human_monitor_command($vmid, "sendkey $key");
4468     });
4469 }
4470
4471 sub vm_destroy {
4472     my ($storecfg, $vmid, $skiplock) = @_;
4473
4474     lock_config($vmid, sub {
4475
4476         my $conf = load_config($vmid);
4477
4478         check_lock($conf) if !$skiplock;
4479
4480         if (!check_running($vmid)) {
4481             fairsched_rmnod($vmid); # try to destroy group
4482             destroy_vm($storecfg, $vmid);
4483         } else {
4484             die "VM $vmid is running - destroy failed\n";
4485         }
4486     });
4487 }
4488
4489 # pci helpers
4490
4491 sub file_write {
4492     my ($filename, $buf) = @_;
4493
4494     my $fh = IO::File->new($filename, "w");
4495     return undef if !$fh;
4496
4497     my $res = print $fh $buf;
4498
4499     $fh->close();
4500
4501     return $res;
4502 }
4503
4504 sub pci_device_info {
4505     my ($name) = @_;
4506
4507     my $res;
4508
4509     return undef if $name !~ m/^([a-f0-9]{4}):([a-f0-9]{2}):([a-f0-9]{2})\.([a-f0-9])$/;
4510     my ($domain, $bus, $slot, $func) = ($1, $2, $3, $4);
4511
4512     my $irq = file_read_firstline("$pcisysfs/devices/$name/irq");
4513     return undef if !defined($irq) || $irq !~ m/^\d+$/;
4514
4515     my $vendor = file_read_firstline("$pcisysfs/devices/$name/vendor");
4516     return undef if !defined($vendor) || $vendor !~ s/^0x//;
4517
4518     my $product = file_read_firstline("$pcisysfs/devices/$name/device");
4519     return undef if !defined($product) || $product !~ s/^0x//;
4520
4521     $res = {
4522         name => $name,
4523         vendor => $vendor,
4524         product => $product,
4525         domain => $domain,
4526         bus => $bus,
4527         slot => $slot,
4528         func => $func,
4529         irq => $irq,
4530         has_fl_reset => -f "$pcisysfs/devices/$name/reset" || 0,
4531     };
4532
4533     return $res;
4534 }
4535
4536 sub pci_dev_reset {
4537     my ($dev) = @_;
4538
4539     my $name = $dev->{name};
4540
4541     my $fn = "$pcisysfs/devices/$name/reset";
4542
4543     return file_write($fn, "1");
4544 }
4545
4546 sub pci_dev_bind_to_stub {
4547     my ($dev) = @_;
4548
4549     my $name = $dev->{name};
4550
4551     my $testdir = "$pcisysfs/drivers/pci-stub/$name";
4552     return 1 if -d $testdir;
4553
4554     my $data = "$dev->{vendor} $dev->{product}";
4555     return undef if !file_write("$pcisysfs/drivers/pci-stub/new_id", $data);
4556
4557     my $fn = "$pcisysfs/devices/$name/driver/unbind";
4558     if (!file_write($fn, $name)) {
4559         return undef if -f $fn;
4560     }
4561
4562     $fn = "$pcisysfs/drivers/pci-stub/bind";
4563     if (! -d $testdir) {
4564         return undef if !file_write($fn, $name);
4565     }
4566
4567     return -d $testdir;
4568 }
4569
4570 sub pci_dev_bind_to_vfio {
4571     my ($dev) = @_;
4572
4573     my $name = $dev->{name};
4574
4575     my $vfio_basedir = "$pcisysfs/drivers/vfio-pci";
4576
4577     if (!-d $vfio_basedir) {
4578         system("/sbin/modprobe vfio-pci >/dev/null 2>/dev/null");
4579     }
4580     die "Cannot find vfio-pci module!\n" if !-d $vfio_basedir;
4581
4582     my $testdir = "$vfio_basedir/$name";
4583     return 1 if -d $testdir;
4584
4585     my $data = "$dev->{vendor} $dev->{product}";
4586     return undef if !file_write("$vfio_basedir/new_id", $data);
4587
4588     my $fn = "$pcisysfs/devices/$name/driver/unbind";
4589     if (!file_write($fn, $name)) {
4590         return undef if -f $fn;
4591     }
4592
4593     $fn = "$vfio_basedir/bind";
4594     if (! -d $testdir) {
4595         return undef if !file_write($fn, $name);
4596     }
4597
4598     return -d $testdir;
4599 }
4600
4601 sub pci_dev_group_bind_to_vfio {
4602     my ($pciid) = @_;
4603
4604     my $vfio_basedir = "$pcisysfs/drivers/vfio-pci";
4605
4606     if (!-d $vfio_basedir) {
4607         system("/sbin/modprobe vfio-pci >/dev/null 2>/dev/null");
4608     }
4609     die "Cannot find vfio-pci module!\n" if !-d $vfio_basedir;
4610
4611     # get IOMMU group devices
4612     opendir(my $D, "$pcisysfs/devices/0000:$pciid/iommu_group/devices/") || die "Cannot open iommu_group: $!\n";
4613       my @devs = grep /^0000:/, readdir($D);
4614     closedir($D);
4615
4616     foreach my $pciid (@devs) {
4617         $pciid =~ m/^([:\.\da-f]+)$/ or die "PCI ID $pciid not valid!\n";
4618
4619         # pci bridges, switches or root ports are not supported
4620         # they have a pci_bus subdirectory so skip them
4621         next if (-e "$pcisysfs/devices/$pciid/pci_bus");
4622
4623         my $info = pci_device_info($1);
4624         pci_dev_bind_to_vfio($info) || die "Cannot bind $pciid to vfio\n";
4625     }
4626
4627     return 1;
4628 }
4629
4630 sub print_pci_addr {
4631     my ($id, $bridges) = @_;
4632
4633     my $res = '';
4634     my $devices = {
4635         piix3 => { bus => 0, addr => 1 },
4636         #addr2 : first videocard
4637         balloon0 => { bus => 0, addr => 3 },
4638         watchdog => { bus => 0, addr => 4 },
4639         scsihw0 => { bus => 0, addr => 5 },
4640         scsihw1 => { bus => 0, addr => 6 },
4641         ahci0 => { bus => 0, addr => 7 },
4642         qga0 => { bus => 0, addr => 8 },
4643         spice => { bus => 0, addr => 9 },
4644         virtio0 => { bus => 0, addr => 10 },
4645         virtio1 => { bus => 0, addr => 11 },
4646         virtio2 => { bus => 0, addr => 12 },
4647         virtio3 => { bus => 0, addr => 13 },
4648         virtio4 => { bus => 0, addr => 14 },
4649         virtio5 => { bus => 0, addr => 15 },
4650         hostpci0 => { bus => 0, addr => 16 },
4651         hostpci1 => { bus => 0, addr => 17 },
4652         net0 => { bus => 0, addr => 18 },
4653         net1 => { bus => 0, addr => 19 },
4654         net2 => { bus => 0, addr => 20 },
4655         net3 => { bus => 0, addr => 21 },
4656         net4 => { bus => 0, addr => 22 },
4657         net5 => { bus => 0, addr => 23 },
4658         vga1 => { bus => 0, addr => 24 },
4659         vga2 => { bus => 0, addr => 25 },
4660         vga3 => { bus => 0, addr => 26 },
4661         hostpci2 => { bus => 0, addr => 27 },
4662         hostpci3 => { bus => 0, addr => 28 },
4663         #addr29 : usb-host (pve-usb.cfg)
4664         'pci.1' => { bus => 0, addr => 30 },
4665         'pci.2' => { bus => 0, addr => 31 },
4666         'net6' => { bus => 1, addr => 1 },
4667         'net7' => { bus => 1, addr => 2 },
4668         'net8' => { bus => 1, addr => 3 },
4669         'net9' => { bus => 1, addr => 4 },
4670         'net10' => { bus => 1, addr => 5 },
4671         'net11' => { bus => 1, addr => 6 },
4672         'net12' => { bus => 1, addr => 7 },
4673         'net13' => { bus => 1, addr => 8 },
4674         'net14' => { bus => 1, addr => 9 },
4675         'net15' => { bus => 1, addr => 10 },
4676         'net16' => { bus => 1, addr => 11 },
4677         'net17' => { bus => 1, addr => 12 },
4678         'net18' => { bus => 1, addr => 13 },
4679         'net19' => { bus => 1, addr => 14 },
4680         'net20' => { bus => 1, addr => 15 },
4681         'net21' => { bus => 1, addr => 16 },
4682         'net22' => { bus => 1, addr => 17 },
4683         'net23' => { bus => 1, addr => 18 },
4684         'net24' => { bus => 1, addr => 19 },
4685         'net25' => { bus => 1, addr => 20 },
4686         'net26' => { bus => 1, addr => 21 },
4687         'net27' => { bus => 1, addr => 22 },
4688         'net28' => { bus => 1, addr => 23 },
4689         'net29' => { bus => 1, addr => 24 },
4690         'net30' => { bus => 1, addr => 25 },
4691         'net31' => { bus => 1, addr => 26 },
4692         'virtio6' => { bus => 2, addr => 1 },
4693         'virtio7' => { bus => 2, addr => 2 },
4694         'virtio8' => { bus => 2, addr => 3 },
4695         'virtio9' => { bus => 2, addr => 4 },
4696         'virtio10' => { bus => 2, addr => 5 },
4697         'virtio11' => { bus => 2, addr => 6 },
4698         'virtio12' => { bus => 2, addr => 7 },
4699         'virtio13' => { bus => 2, addr => 8 },
4700         'virtio14' => { bus => 2, addr => 9 },
4701         'virtio15' => { bus => 2, addr => 10 },
4702     };
4703
4704     if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
4705            my $addr = sprintf("0x%x", $devices->{$id}->{addr});
4706            my $bus = $devices->{$id}->{bus};
4707            $res = ",bus=pci.$bus,addr=$addr";
4708            $bridges->{$bus} = 1 if $bridges;
4709     }
4710     return $res;
4711
4712 }
4713
4714 sub print_pcie_addr {
4715     my ($id) = @_;
4716
4717     my $res = '';
4718     my $devices = {
4719         hostpci0 => { bus => "ich9-pcie-port-1", addr => 0 },
4720         hostpci1 => { bus => "ich9-pcie-port-2", addr => 0 },
4721         hostpci2 => { bus => "ich9-pcie-port-3", addr => 0 },
4722         hostpci3 => { bus => "ich9-pcie-port-4", addr => 0 },
4723     };
4724
4725     if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
4726            my $addr = sprintf("0x%x", $devices->{$id}->{addr});
4727            my $bus = $devices->{$id}->{bus};
4728            $res = ",bus=$bus,addr=$addr";
4729     }
4730     return $res;
4731
4732 }
4733
4734 # vzdump restore implementaion
4735
4736 sub tar_archive_read_firstfile {
4737     my $archive = shift;
4738
4739     die "ERROR: file '$archive' does not exist\n" if ! -f $archive;
4740
4741     # try to detect archive type first
4742     my $pid = open (TMP, "tar tf '$archive'|") ||
4743         die "unable to open file '$archive'\n";
4744     my $firstfile = <TMP>;
4745     kill 15, $pid;
4746     close TMP;
4747
4748     die "ERROR: archive contaions no data\n" if !$firstfile;
4749     chomp $firstfile;
4750
4751     return $firstfile;
4752 }
4753
4754 sub tar_restore_cleanup {
4755     my ($storecfg, $statfile) = @_;
4756
4757     print STDERR "starting cleanup\n";
4758
4759     if (my $fd = IO::File->new($statfile, "r")) {
4760         while (defined(my $line = <$fd>)) {
4761             if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
4762                 my $volid = $2;
4763                 eval {
4764                     if ($volid =~ m|^/|) {
4765                         unlink $volid || die 'unlink failed\n';
4766                     } else {
4767                         PVE::Storage::vdisk_free($storecfg, $volid);
4768                     }
4769                     print STDERR "temporary volume '$volid' sucessfuly removed\n";
4770                 };
4771                 print STDERR "unable to cleanup '$volid' - $@" if $@;
4772             } else {
4773                 print STDERR "unable to parse line in statfile - $line";
4774             }
4775         }
4776         $fd->close();
4777     }
4778 }
4779
4780 sub restore_archive {
4781     my ($archive, $vmid, $user, $opts) = @_;
4782
4783     my $format = $opts->{format};
4784     my $comp;
4785
4786     if ($archive =~ m/\.tgz$/ || $archive =~ m/\.tar\.gz$/) {
4787         $format = 'tar' if !$format;
4788         $comp = 'gzip';
4789     } elsif ($archive =~ m/\.tar$/) {
4790         $format = 'tar' if !$format;
4791     } elsif ($archive =~ m/.tar.lzo$/) {
4792         $format = 'tar' if !$format;
4793         $comp = 'lzop';
4794     } elsif ($archive =~ m/\.vma$/) {
4795         $format = 'vma' if !$format;
4796     } elsif ($archive =~ m/\.vma\.gz$/) {
4797         $format = 'vma' if !$format;
4798         $comp = 'gzip';
4799     } elsif ($archive =~ m/\.vma\.lzo$/) {
4800         $format = 'vma' if !$format;
4801         $comp = 'lzop';
4802     } else {
4803         $format = 'vma' if !$format; # default
4804     }
4805
4806     # try to detect archive format
4807     if ($format eq 'tar') {
4808         return restore_tar_archive($archive, $vmid, $user, $opts);
4809     } else {
4810         return restore_vma_archive($archive, $vmid, $user, $opts, $comp);
4811     }
4812 }
4813
4814 sub restore_update_config_line {
4815     my ($outfd, $cookie, $vmid, $map, $line, $unique) = @_;
4816
4817     return if $line =~ m/^\#qmdump\#/;
4818     return if $line =~ m/^\#vzdump\#/;
4819     return if $line =~ m/^lock:/;
4820     return if $line =~ m/^unused\d+:/;
4821     return if $line =~ m/^parent:/;
4822     return if $line =~ m/^template:/; # restored VM is never a template
4823
4824     if (($line =~ m/^(vlan(\d+)):\s*(\S+)\s*$/)) {
4825         # try to convert old 1.X settings
4826         my ($id, $ind, $ethcfg) = ($1, $2, $3);
4827         foreach my $devconfig (PVE::Tools::split_list($ethcfg)) {
4828             my ($model, $macaddr) = split(/\=/, $devconfig);
4829             $macaddr = PVE::Tools::random_ether_addr() if !$macaddr || $unique;
4830             my $net = {
4831                 model => $model,
4832                 bridge => "vmbr$ind",
4833                 macaddr => $macaddr,
4834             };
4835             my $netstr = print_net($net);
4836
4837             print $outfd "net$cookie->{netcount}: $netstr\n";
4838             $cookie->{netcount}++;
4839         }
4840     } elsif (($line =~ m/^(net\d+):\s*(\S+)\s*$/) && $unique) {
4841         my ($id, $netstr) = ($1, $2);
4842         my $net = parse_net($netstr);
4843         $net->{macaddr} = PVE::Tools::random_ether_addr() if $net->{macaddr};
4844         $netstr = print_net($net);
4845         print $outfd "$id: $netstr\n";
4846     } elsif ($line =~ m/^((ide|scsi|virtio|sata)\d+):\s*(\S+)\s*$/) {
4847         my $virtdev = $1;
4848         my $value = $3;
4849         if ($line =~ m/backup=no/) {
4850             print $outfd "#$line";
4851         } elsif ($virtdev && $map->{$virtdev}) {
4852             my $di = parse_drive($virtdev, $value);
4853             delete $di->{format}; # format can change on restore
4854             $di->{file} = $map->{$virtdev};
4855             $value = print_drive($vmid, $di);
4856             print $outfd "$virtdev: $value\n";
4857         } else {
4858             print $outfd $line;
4859         }
4860     } else {
4861         print $outfd $line;
4862     }
4863 }
4864
4865 sub scan_volids {
4866     my ($cfg, $vmid) = @_;
4867
4868     my $info = PVE::Storage::vdisk_list($cfg, undef, $vmid);
4869
4870     my $volid_hash = {};
4871     foreach my $storeid (keys %$info) {
4872         foreach my $item (@{$info->{$storeid}}) {
4873             next if !($item->{volid} && $item->{size});
4874             $item->{path} = PVE::Storage::path($cfg, $item->{volid});
4875             $volid_hash->{$item->{volid}} = $item;
4876         }
4877     }
4878
4879     return $volid_hash;
4880 }
4881
4882 sub get_used_paths {
4883     my ($vmid, $storecfg, $conf, $scan_snapshots, $skip_drive) = @_;
4884
4885     my $used_path = {};
4886
4887     my $scan_config = sub {
4888         my ($cref, $snapname) = @_;
4889
4890         foreach my $key (keys %$cref) {
4891             my $value = $cref->{$key};
4892             if (valid_drivename($key)) {
4893                 next if $skip_drive && $key eq $skip_drive;
4894                 my $drive = parse_drive($key, $value);
4895                 next if !$drive || !$drive->{file} || drive_is_cdrom($drive);
4896                 if ($drive->{file} =~ m!^/!) {
4897                     $used_path->{$drive->{file}}++; # = 1;
4898                 } else {
4899                     my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file}, 1);
4900                     next if !$storeid;
4901                     my $scfg = PVE::Storage::storage_config($storecfg, $storeid, 1);
4902                     next if !$scfg;
4903                     my $path = PVE::Storage::path($storecfg, $drive->{file}, $snapname);
4904                     $used_path->{$path}++; # = 1;
4905                 }
4906             }
4907         }
4908     };
4909
4910     &$scan_config($conf);
4911
4912     undef $skip_drive;
4913
4914     if ($scan_snapshots) {
4915         foreach my $snapname (keys %{$conf->{snapshots}}) {
4916             &$scan_config($conf->{snapshots}->{$snapname}, $snapname);
4917         }
4918     }
4919
4920     return $used_path;
4921 }
4922
4923 sub update_disksize {
4924     my ($vmid, $conf, $volid_hash) = @_;
4925
4926     my $changes;
4927
4928     my $used = {};
4929
4930     # Note: it is allowed to define multiple storages with same path (alias), so
4931     # we need to check both 'volid' and real 'path' (two different volid can point
4932     # to the same path).
4933
4934     my $usedpath = {};
4935
4936     # update size info
4937     foreach my $opt (keys %$conf) {
4938         if (valid_drivename($opt)) {
4939             my $drive = parse_drive($opt, $conf->{$opt});
4940             my $volid = $drive->{file};
4941             next if !$volid;
4942
4943             $used->{$volid} = 1;
4944             if ($volid_hash->{$volid} &&
4945                 (my $path = $volid_hash->{$volid}->{path})) {
4946                 $usedpath->{$path} = 1;
4947             }
4948
4949             next if drive_is_cdrom($drive);
4950             next if !$volid_hash->{$volid};
4951
4952             $drive->{size} = $volid_hash->{$volid}->{size};
4953             my $new = print_drive($vmid, $drive);
4954             if ($new ne $conf->{$opt}) {
4955                 $changes = 1;
4956                 $conf->{$opt} = $new;
4957             }
4958         }
4959     }
4960
4961     # remove 'unusedX' entry if volume is used
4962     foreach my $opt (keys %$conf) {
4963         next if $opt !~ m/^unused\d+$/;
4964         my $volid = $conf->{$opt};
4965         my $path = $volid_hash->{$volid}->{path} if $volid_hash->{$volid};
4966         if ($used->{$volid} || ($path && $usedpath->{$path})) {
4967             $changes = 1;
4968             delete $conf->{$opt};
4969         }
4970     }
4971
4972     foreach my $volid (sort keys %$volid_hash) {
4973         next if $volid =~ m/vm-$vmid-state-/;
4974         next if $used->{$volid};
4975         my $path = $volid_hash->{$volid}->{path};
4976         next if !$path; # just to be sure
4977         next if $usedpath->{$path};
4978         $changes = 1;
4979         add_unused_volume($conf, $volid);
4980         $usedpath->{$path} = 1; # avoid to add more than once (aliases)
4981     }
4982
4983     return $changes;
4984 }
4985
4986 sub rescan {
4987     my ($vmid, $nolock) = @_;
4988
4989     my $cfg = PVE::Cluster::cfs_read_file("storage.cfg");
4990
4991     my $volid_hash = scan_volids($cfg, $vmid);
4992
4993     my $updatefn =  sub {
4994         my ($vmid) = @_;
4995
4996         my $conf = load_config($vmid);
4997
4998         check_lock($conf);
4999
5000         my $vm_volids = {};
5001         foreach my $volid (keys %$volid_hash) {
5002             my $info = $volid_hash->{$volid};
5003             $vm_volids->{$volid} = $info if $info->{vmid} && $info->{vmid} == $vmid;
5004         }
5005
5006         my $changes = update_disksize($vmid, $conf, $vm_volids);
5007
5008         update_config_nolock($vmid, $conf, 1) if $changes;
5009     };
5010
5011     if (defined($vmid)) {
5012         if ($nolock) {
5013             &$updatefn($vmid);
5014         } else {
5015             lock_config($vmid, $updatefn, $vmid);
5016         }
5017     } else {
5018         my $vmlist = config_list();
5019         foreach my $vmid (keys %$vmlist) {
5020             if ($nolock) {
5021                 &$updatefn($vmid);
5022             } else {
5023                 lock_config($vmid, $updatefn, $vmid);
5024             }
5025         }
5026     }
5027 }
5028
5029 sub restore_vma_archive {
5030     my ($archive, $vmid, $user, $opts, $comp) = @_;
5031
5032     my $input = $archive eq '-' ? "<&STDIN" : undef;
5033     my $readfrom = $archive;
5034
5035     my $uncomp = '';
5036     if ($comp) {
5037         $readfrom = '-';
5038         my $qarchive = PVE::Tools::shellquote($archive);
5039         if ($comp eq 'gzip') {
5040             $uncomp = "zcat $qarchive|";
5041         } elsif ($comp eq 'lzop') {
5042             $uncomp = "lzop -d -c $qarchive|";
5043         } else {
5044             die "unknown compression method '$comp'\n";
5045         }
5046
5047     }
5048
5049     my $tmpdir = "/var/tmp/vzdumptmp$$";
5050     rmtree $tmpdir;
5051
5052     # disable interrupts (always do cleanups)
5053     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
5054         warn "got interrupt - ignored\n";
5055     };
5056
5057     my $mapfifo = "/var/tmp/vzdumptmp$$.fifo";
5058     POSIX::mkfifo($mapfifo, 0600);
5059     my $fifofh;
5060
5061     my $openfifo = sub {
5062         open($fifofh, '>', $mapfifo) || die $!;
5063     };
5064
5065     my $cmd = "${uncomp}vma extract -v -r $mapfifo $readfrom $tmpdir";
5066
5067     my $oldtimeout;
5068     my $timeout = 5;
5069
5070     my $devinfo = {};
5071
5072     my $rpcenv = PVE::RPCEnvironment::get();
5073
5074     my $conffile = config_file($vmid);
5075     my $tmpfn = "$conffile.$$.tmp";
5076
5077     # Note: $oldconf is undef if VM does not exists
5078     my $oldconf = PVE::Cluster::cfs_read_file(cfs_config_path($vmid));
5079
5080     my $print_devmap = sub {
5081         my $virtdev_hash = {};
5082
5083         my $cfgfn = "$tmpdir/qemu-server.conf";
5084
5085         # we can read the config - that is already extracted
5086         my $fh = IO::File->new($cfgfn, "r") ||
5087             "unable to read qemu-server.conf - $!\n";
5088
5089         while (defined(my $line = <$fh>)) {
5090             if ($line =~ m/^\#qmdump\#map:(\S+):(\S+):(\S*):(\S*):$/) {
5091                 my ($virtdev, $devname, $storeid, $format) = ($1, $2, $3, $4);
5092                 die "archive does not contain data for drive '$virtdev'\n"
5093                     if !$devinfo->{$devname};
5094                 if (defined($opts->{storage})) {
5095                     $storeid = $opts->{storage} || 'local';
5096                 } elsif (!$storeid) {
5097                     $storeid = 'local';
5098                 }
5099                 $format = 'raw' if !$format;
5100                 $devinfo->{$devname}->{devname} = $devname;
5101                 $devinfo->{$devname}->{virtdev} = $virtdev;
5102                 $devinfo->{$devname}->{format} = $format;
5103                 $devinfo->{$devname}->{storeid} = $storeid;
5104
5105                 # check permission on storage
5106                 my $pool = $opts->{pool}; # todo: do we need that?
5107                 if ($user ne 'root@pam') {
5108                     $rpcenv->check($user, "/storage/$storeid", ['Datastore.AllocateSpace']);
5109                 }
5110
5111                 $virtdev_hash->{$virtdev} = $devinfo->{$devname};
5112             }
5113         }
5114
5115         foreach my $devname (keys %$devinfo) {
5116             die "found no device mapping information for device '$devname'\n"
5117                 if !$devinfo->{$devname}->{virtdev};
5118         }
5119
5120         my $cfg = cfs_read_file('storage.cfg');
5121
5122         # create empty/temp config
5123         if ($oldconf) {
5124             PVE::Tools::file_set_contents($conffile, "memory: 128\n");
5125             foreach_drive($oldconf, sub {
5126                 my ($ds, $drive) = @_;
5127
5128                 return if drive_is_cdrom($drive);
5129
5130                 my $volid = $drive->{file};
5131
5132                 return if !$volid || $volid =~ m|^/|;
5133
5134                 my ($path, $owner) = PVE::Storage::path($cfg, $volid);
5135                 return if !$path || !$owner || ($owner != $vmid);
5136
5137                 # Note: only delete disk we want to restore
5138                 # other volumes will become unused
5139                 if ($virtdev_hash->{$ds}) {
5140                     PVE::Storage::vdisk_free($cfg, $volid);
5141                 }
5142             });
5143         }
5144
5145         my $map = {};
5146         foreach my $virtdev (sort keys %$virtdev_hash) {
5147             my $d = $virtdev_hash->{$virtdev};
5148             my $alloc_size = int(($d->{size} + 1024 - 1)/1024);
5149             my $scfg = PVE::Storage::storage_config($cfg, $d->{storeid});
5150
5151             # test if requested format is supported
5152             my ($defFormat, $validFormats) = PVE::Storage::storage_default_format($cfg, $d->{storeid});
5153             my $supported = grep { $_ eq $d->{format} } @$validFormats;
5154             $d->{format} = $defFormat if !$supported;
5155
5156             my $volid = PVE::Storage::vdisk_alloc($cfg, $d->{storeid}, $vmid,
5157                                                   $d->{format}, undef, $alloc_size);
5158             print STDERR "new volume ID is '$volid'\n";
5159             $d->{volid} = $volid;
5160             my $path = PVE::Storage::path($cfg, $volid);
5161
5162             my $write_zeros = 1;
5163             # fixme: what other storages types initialize volumes with zero?
5164             if ($scfg->{type} eq 'dir' || $scfg->{type} eq 'nfs' || $scfg->{type} eq 'glusterfs' ||
5165                 $scfg->{type} eq 'sheepdog' || $scfg->{type} eq 'rbd') {
5166                 $write_zeros = 0;
5167             }
5168
5169             print $fifofh "${write_zeros}:$d->{devname}=$path\n";
5170
5171             print "map '$d->{devname}' to '$path' (write zeros = ${write_zeros})\n";
5172             $map->{$virtdev} = $volid;
5173         }
5174
5175         $fh->seek(0, 0) || die "seek failed - $!\n";
5176
5177         my $outfd = new IO::File ($tmpfn, "w") ||
5178             die "unable to write config for VM $vmid\n";
5179
5180         my $cookie = { netcount => 0 };
5181         while (defined(my $line = <$fh>)) {
5182             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
5183         }
5184
5185         $fh->close();
5186         $outfd->close();
5187     };
5188
5189     eval {
5190         # enable interrupts
5191         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
5192             die "interrupted by signal\n";
5193         };
5194         local $SIG{ALRM} = sub { die "got timeout\n"; };
5195
5196         $oldtimeout = alarm($timeout);
5197
5198         my $parser = sub {
5199             my $line = shift;
5200
5201             print "$line\n";
5202
5203             if ($line =~ m/^DEV:\sdev_id=(\d+)\ssize:\s(\d+)\sdevname:\s(\S+)$/) {
5204                 my ($dev_id, $size, $devname) = ($1, $2, $3);
5205                 $devinfo->{$devname} = { size => $size, dev_id => $dev_id };
5206             } elsif ($line =~ m/^CTIME: /) {
5207                 # we correctly received the vma config, so we can disable
5208                 # the timeout now for disk allocation (set to 10 minutes, so
5209                 # that we always timeout if something goes wrong)
5210                 alarm(600);
5211                 &$print_devmap();
5212                 print $fifofh "done\n";
5213                 my $tmp = $oldtimeout || 0;
5214                 $oldtimeout = undef;
5215                 alarm($tmp);
5216                 close($fifofh);
5217             }
5218         };
5219
5220         print "restore vma archive: $cmd\n";
5221         run_command($cmd, input => $input, outfunc => $parser, afterfork => $openfifo);
5222     };
5223     my $err = $@;
5224
5225     alarm($oldtimeout) if $oldtimeout;
5226
5227     unlink $mapfifo;
5228
5229     if ($err) {
5230         rmtree $tmpdir;
5231         unlink $tmpfn;
5232
5233         my $cfg = cfs_read_file('storage.cfg');
5234         foreach my $devname (keys %$devinfo) {
5235             my $volid = $devinfo->{$devname}->{volid};
5236             next if !$volid;
5237             eval {
5238                 if ($volid =~ m|^/|) {
5239                     unlink $volid || die 'unlink failed\n';
5240                 } else {
5241                     PVE::Storage::vdisk_free($cfg, $volid);
5242                 }
5243                 print STDERR "temporary volume '$volid' sucessfuly removed\n";
5244             };
5245             print STDERR "unable to cleanup '$volid' - $@" if $@;
5246         }
5247         die $err;
5248     }
5249
5250     rmtree $tmpdir;
5251
5252     rename($tmpfn, $conffile) ||
5253         die "unable to commit configuration file '$conffile'\n";
5254
5255     PVE::Cluster::cfs_update(); # make sure we read new file
5256
5257     eval { rescan($vmid, 1); };
5258     warn $@ if $@;
5259 }
5260
5261 sub restore_tar_archive {
5262     my ($archive, $vmid, $user, $opts) = @_;
5263
5264     if ($archive ne '-') {
5265         my $firstfile = tar_archive_read_firstfile($archive);
5266         die "ERROR: file '$archive' dos not lock like a QemuServer vzdump backup\n"
5267             if $firstfile ne 'qemu-server.conf';
5268     }
5269
5270     my $storecfg = cfs_read_file('storage.cfg');
5271
5272     # destroy existing data - keep empty config
5273     my $vmcfgfn = config_file($vmid);
5274     destroy_vm($storecfg, $vmid, 1) if -f $vmcfgfn;
5275
5276     my $tocmd = "/usr/lib/qemu-server/qmextract";
5277
5278     $tocmd .= " --storage " . PVE::Tools::shellquote($opts->{storage}) if $opts->{storage};
5279     $tocmd .= " --pool " . PVE::Tools::shellquote($opts->{pool}) if $opts->{pool};
5280     $tocmd .= ' --prealloc' if $opts->{prealloc};
5281     $tocmd .= ' --info' if $opts->{info};
5282
5283     # tar option "xf" does not autodetect compression when read from STDIN,
5284     # so we pipe to zcat
5285     my $cmd = "zcat -f|tar xf " . PVE::Tools::shellquote($archive) . " " .
5286         PVE::Tools::shellquote("--to-command=$tocmd");
5287
5288     my $tmpdir = "/var/tmp/vzdumptmp$$";
5289     mkpath $tmpdir;
5290
5291     local $ENV{VZDUMP_TMPDIR} = $tmpdir;
5292     local $ENV{VZDUMP_VMID} = $vmid;
5293     local $ENV{VZDUMP_USER} = $user;
5294
5295     my $conffile = config_file($vmid);
5296     my $tmpfn = "$conffile.$$.tmp";
5297
5298     # disable interrupts (always do cleanups)
5299     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
5300         print STDERR "got interrupt - ignored\n";
5301     };
5302
5303     eval {
5304         # enable interrupts
5305         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
5306             die "interrupted by signal\n";
5307         };
5308
5309         if ($archive eq '-') {
5310             print "extracting archive from STDIN\n";
5311             run_command($cmd, input => "<&STDIN");
5312         } else {
5313             print "extracting archive '$archive'\n";
5314             run_command($cmd);
5315         }
5316
5317         return if $opts->{info};
5318
5319         # read new mapping
5320         my $map = {};
5321         my $statfile = "$tmpdir/qmrestore.stat";
5322         if (my $fd = IO::File->new($statfile, "r")) {
5323             while (defined (my $line = <$fd>)) {
5324                 if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
5325                     $map->{$1} = $2 if $1;
5326                 } else {
5327                     print STDERR "unable to parse line in statfile - $line\n";
5328                 }
5329             }
5330             $fd->close();
5331         }
5332
5333         my $confsrc = "$tmpdir/qemu-server.conf";
5334
5335         my $srcfd = new IO::File($confsrc, "r") ||
5336             die "unable to open file '$confsrc'\n";
5337
5338         my $outfd = new IO::File ($tmpfn, "w") ||
5339             die "unable to write config for VM $vmid\n";
5340
5341         my $cookie = { netcount => 0 };
5342         while (defined (my $line = <$srcfd>)) {
5343             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
5344         }
5345
5346         $srcfd->close();
5347         $outfd->close();
5348     };
5349     my $err = $@;
5350
5351     if ($err) {
5352
5353         unlink $tmpfn;
5354
5355         tar_restore_cleanup($storecfg, "$tmpdir/qmrestore.stat") if !$opts->{info};
5356
5357         die $err;
5358     }
5359
5360     rmtree $tmpdir;
5361
5362     rename $tmpfn, $conffile ||
5363         die "unable to commit configuration file '$conffile'\n";
5364
5365     PVE::Cluster::cfs_update(); # make sure we read new file
5366
5367     eval { rescan($vmid, 1); };
5368     warn $@ if $@;
5369 };
5370
5371
5372 # Internal snapshots
5373
5374 # NOTE: Snapshot create/delete involves several non-atomic
5375 # action, and can take a long time.
5376 # So we try to avoid locking the file and use 'lock' variable
5377 # inside the config file instead.
5378
5379 my $snapshot_copy_config = sub {
5380     my ($source, $dest) = @_;
5381
5382     foreach my $k (keys %$source) {
5383         next if $k eq 'snapshots';
5384         next if $k eq 'snapstate';
5385         next if $k eq 'snaptime';
5386         next if $k eq 'vmstate';
5387         next if $k eq 'lock';
5388         next if $k eq 'digest';
5389         next if $k eq 'description';
5390         next if $k =~ m/^unused\d+$/;
5391
5392         $dest->{$k} = $source->{$k};
5393     }
5394 };
5395
5396 my $snapshot_apply_config = sub {
5397     my ($conf, $snap) = @_;
5398
5399     # copy snapshot list
5400     my $newconf = {
5401         snapshots => $conf->{snapshots},
5402     };
5403
5404     # keep description and list of unused disks
5405     foreach my $k (keys %$conf) {
5406         next if !($k =~ m/^unused\d+$/ || $k eq 'description');
5407         $newconf->{$k} = $conf->{$k};
5408     }
5409
5410     &$snapshot_copy_config($snap, $newconf);
5411
5412     return $newconf;
5413 };
5414
5415 sub foreach_writable_storage {
5416     my ($conf, $func) = @_;
5417
5418     my $sidhash = {};
5419
5420     foreach my $ds (keys %$conf) {
5421         next if !valid_drivename($ds);
5422
5423         my $drive = parse_drive($ds, $conf->{$ds});
5424         next if !$drive;
5425         next if drive_is_cdrom($drive);
5426
5427         my $volid = $drive->{file};
5428
5429         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
5430         $sidhash->{$sid} = $sid if $sid;
5431     }
5432
5433     foreach my $sid (sort keys %$sidhash) {
5434         &$func($sid);
5435     }
5436 }
5437
5438 my $alloc_vmstate_volid = sub {
5439     my ($storecfg, $vmid, $conf, $snapname) = @_;
5440
5441     # Note: we try to be smart when selecting a $target storage
5442
5443     my $target;
5444
5445     # search shared storage first
5446     foreach_writable_storage($conf, sub {
5447         my ($sid) = @_;
5448         my $scfg = PVE::Storage::storage_config($storecfg, $sid);
5449         return if !$scfg->{shared};
5450
5451         $target = $sid if !$target || $scfg->{path}; # prefer file based storage
5452     });
5453
5454     if (!$target) {
5455         # now search local storage
5456         foreach_writable_storage($conf, sub {
5457             my ($sid) = @_;
5458             my $scfg = PVE::Storage::storage_config($storecfg, $sid);
5459             return if $scfg->{shared};
5460
5461             $target = $sid if !$target || $scfg->{path}; # prefer file based storage;
5462         });
5463     }
5464
5465     $target = 'local' if !$target;
5466
5467     my $driver_state_size = 500; # assume 32MB is enough to safe all driver state;
5468     # we abort live save after $conf->{memory}, so we need at max twice that space
5469     my $size = $conf->{memory}*2 + $driver_state_size;
5470
5471     my $name = "vm-$vmid-state-$snapname";
5472     my $scfg = PVE::Storage::storage_config($storecfg, $target);
5473     $name .= ".raw" if $scfg->{path}; # add filename extension for file base storage
5474     my $volid = PVE::Storage::vdisk_alloc($storecfg, $target, $vmid, 'raw', $name, $size*1024);
5475
5476     return $volid;
5477 };
5478
5479 my $snapshot_prepare = sub {
5480     my ($vmid, $snapname, $save_vmstate, $comment) = @_;
5481
5482     my $snap;
5483
5484     my $updatefn =  sub {
5485
5486         my $conf = load_config($vmid);
5487
5488         die "you can't take a snapshot if it's a template\n"
5489             if is_template($conf);
5490
5491         check_lock($conf);
5492
5493         $conf->{lock} = 'snapshot';
5494
5495         die "snapshot name '$snapname' already used\n"
5496             if defined($conf->{snapshots}->{$snapname});
5497
5498         my $storecfg = PVE::Storage::config();
5499         die "snapshot feature is not available" if !has_feature('snapshot', $conf, $storecfg);
5500
5501         $snap = $conf->{snapshots}->{$snapname} = {};
5502
5503         if ($save_vmstate && check_running($vmid)) {
5504             $snap->{vmstate} = &$alloc_vmstate_volid($storecfg, $vmid, $conf, $snapname);
5505         }
5506
5507         &$snapshot_copy_config($conf, $snap);
5508
5509         $snap->{snapstate} = "prepare";
5510         $snap->{snaptime} = time();
5511         $snap->{description} = $comment if $comment;
5512
5513         # always overwrite machine if we save vmstate. This makes sure we
5514         # can restore it later using correct machine type
5515         $snap->{machine} = get_current_qemu_machine($vmid) if $snap->{vmstate};
5516
5517         update_config_nolock($vmid, $conf, 1);
5518     };
5519
5520     lock_config($vmid, $updatefn);
5521
5522     return $snap;
5523 };
5524
5525 my $snapshot_commit = sub {
5526     my ($vmid, $snapname) = @_;
5527
5528     my $updatefn = sub {
5529
5530         my $conf = load_config($vmid);
5531
5532         die "missing snapshot lock\n"
5533             if !($conf->{lock} && $conf->{lock} eq 'snapshot');
5534
5535         my $has_machine_config = defined($conf->{machine});
5536
5537         my $snap = $conf->{snapshots}->{$snapname};
5538
5539         die "snapshot '$snapname' does not exist\n" if !defined($snap);
5540
5541         die "wrong snapshot state\n"
5542             if !($snap->{snapstate} && $snap->{snapstate} eq "prepare");
5543
5544         delete $snap->{snapstate};
5545         delete $conf->{lock};
5546
5547         my $newconf = &$snapshot_apply_config($conf, $snap);
5548
5549         delete $newconf->{machine} if !$has_machine_config;
5550
5551         $newconf->{parent} = $snapname;
5552
5553         update_config_nolock($vmid, $newconf, 1);
5554     };
5555
5556     lock_config($vmid, $updatefn);
5557 };
5558
5559 sub snapshot_rollback {
5560     my ($vmid, $snapname) = @_;
5561
5562     my $prepare = 1;
5563
5564     my $storecfg = PVE::Storage::config();
5565
5566     my $conf = load_config($vmid);
5567
5568     my $get_snapshot_config = sub {
5569
5570         die "you can't rollback if vm is a template\n" if is_template($conf);
5571
5572         my $res = $conf->{snapshots}->{$snapname};
5573
5574         die "snapshot '$snapname' does not exist\n" if !defined($res);
5575
5576         return $res;
5577     };
5578
5579     my $snap = &$get_snapshot_config();
5580
5581     foreach_drive($snap, sub {
5582         my ($ds, $drive) = @_;
5583
5584         return if drive_is_cdrom($drive);
5585
5586         my $volid = $drive->{file};
5587
5588         PVE::Storage::volume_rollback_is_possible($storecfg, $volid, $snapname);
5589     });
5590
5591     my $updatefn = sub {
5592
5593         $conf = load_config($vmid);
5594
5595         $snap = &$get_snapshot_config();
5596
5597         die "unable to rollback to incomplete snapshot (snapstate = $snap->{snapstate})\n"
5598             if $snap->{snapstate};
5599
5600         if ($prepare) {
5601             check_lock($conf);
5602             vm_stop($storecfg, $vmid, undef, undef, 5, undef, undef);
5603         }
5604
5605         die "unable to rollback vm $vmid: vm is running\n"
5606             if check_running($vmid);
5607
5608         if ($prepare) {
5609             $conf->{lock} = 'rollback';
5610         } else {
5611             die "got wrong lock\n" if !($conf->{lock} && $conf->{lock} eq 'rollback');
5612             delete $conf->{lock};
5613         }
5614
5615         my $forcemachine;
5616
5617         if (!$prepare) {
5618             my $has_machine_config = defined($conf->{machine});
5619
5620             # copy snapshot config to current config
5621             $conf = &$snapshot_apply_config($conf, $snap);
5622             $conf->{parent} = $snapname;
5623
5624             # Note: old code did not store 'machine', so we try to be smart
5625             # and guess the snapshot was generated with kvm 1.4 (pc-i440fx-1.4).
5626             $forcemachine = $conf->{machine} || 'pc-i440fx-1.4';
5627             # we remove the 'machine' configuration if not explicitly specified
5628             # in the original config.
5629             delete $conf->{machine} if $snap->{vmstate} && !$has_machine_config;
5630         }
5631
5632         update_config_nolock($vmid, $conf, 1);
5633
5634         if (!$prepare && $snap->{vmstate}) {
5635             my $statefile = PVE::Storage::path($storecfg, $snap->{vmstate});
5636             vm_start($storecfg, $vmid, $statefile, undef, undef, undef, $forcemachine);
5637         }
5638     };
5639
5640     lock_config($vmid, $updatefn);
5641
5642     foreach_drive($snap, sub {
5643         my ($ds, $drive) = @_;
5644
5645         return if drive_is_cdrom($drive);
5646
5647         my $volid = $drive->{file};
5648         my $device = "drive-$ds";
5649
5650         PVE::Storage::volume_snapshot_rollback($storecfg, $volid, $snapname);
5651     });
5652
5653     $prepare = 0;
5654     lock_config($vmid, $updatefn);
5655 }
5656
5657 my $savevm_wait = sub {
5658     my ($vmid) = @_;
5659
5660     for(;;) {
5661         my $stat = vm_mon_cmd_nocheck($vmid, "query-savevm");
5662         if (!$stat->{status}) {
5663             die "savevm not active\n";
5664         } elsif ($stat->{status} eq 'active') {
5665             sleep(1);
5666             next;
5667         } elsif ($stat->{status} eq 'completed') {
5668             last;
5669         } else {
5670             die "query-savevm returned status '$stat->{status}'\n";
5671         }
5672     }
5673 };
5674
5675 sub snapshot_create {
5676     my ($vmid, $snapname, $save_vmstate, $comment) = @_;
5677
5678     my $snap = &$snapshot_prepare($vmid, $snapname, $save_vmstate, $comment);
5679
5680     $save_vmstate = 0 if !$snap->{vmstate}; # vm is not running
5681
5682     my $config = load_config($vmid);
5683
5684     my $running = check_running($vmid);
5685
5686     my $freezefs = $running && $config->{agent};
5687     $freezefs = 0 if $snap->{vmstate}; # not needed if we save RAM
5688
5689     my $drivehash = {};
5690
5691     if ($freezefs) {
5692         eval { vm_mon_cmd($vmid, "guest-fsfreeze-freeze"); };
5693         warn "guest-fsfreeze-freeze problems - $@" if $@;
5694     }
5695
5696     eval {
5697         # create internal snapshots of all drives
5698
5699         my $storecfg = PVE::Storage::config();
5700
5701         if ($running) {
5702             if ($snap->{vmstate}) {
5703                 my $path = PVE::Storage::path($storecfg, $snap->{vmstate});
5704                 vm_mon_cmd($vmid, "savevm-start", statefile => $path);
5705                 &$savevm_wait($vmid);
5706             } else {
5707                 vm_mon_cmd($vmid, "savevm-start");
5708             }
5709         };
5710
5711         foreach_drive($snap, sub {
5712             my ($ds, $drive) = @_;
5713
5714             return if drive_is_cdrom($drive);
5715
5716             my $volid = $drive->{file};
5717             my $device = "drive-$ds";
5718
5719             qemu_volume_snapshot($vmid, $device, $storecfg, $volid, $snapname);
5720             $drivehash->{$ds} = 1;
5721        });
5722     };
5723     my $err = $@;
5724
5725     if ($running) {
5726         eval { vm_mon_cmd($vmid, "savevm-end")  };
5727         warn $@ if $@;
5728
5729         if ($freezefs) {
5730             eval { vm_mon_cmd($vmid, "guest-fsfreeze-thaw"); };
5731             warn "guest-fsfreeze-thaw problems - $@" if $@;
5732         }
5733
5734         # savevm-end is async, we need to wait
5735         for (;;) {
5736             my $stat = vm_mon_cmd_nocheck($vmid, "query-savevm");
5737             if (!$stat->{bytes}) {
5738                 last;
5739             } else {
5740                 print "savevm not yet finished\n";
5741                 sleep(1);
5742                 next;
5743             }
5744         }
5745     }
5746
5747     if ($err) {
5748         warn "snapshot create failed: starting cleanup\n";
5749         eval { snapshot_delete($vmid, $snapname, 0, $drivehash); };
5750         warn $@ if $@;
5751         die $err;
5752     }
5753
5754     &$snapshot_commit($vmid, $snapname);
5755 }
5756
5757 # Note: $drivehash is only set when called from snapshot_create.
5758 sub snapshot_delete {
5759     my ($vmid, $snapname, $force, $drivehash) = @_;
5760
5761     my $prepare = 1;
5762
5763     my $snap;
5764     my $unused = [];
5765
5766     my $unlink_parent = sub {
5767         my ($confref, $new_parent) = @_;
5768
5769         if ($confref->{parent} && $confref->{parent} eq $snapname) {
5770             if ($new_parent) {
5771                 $confref->{parent} = $new_parent;
5772             } else {
5773                 delete $confref->{parent};
5774             }
5775         }
5776     };
5777
5778     my $updatefn =  sub {
5779         my ($remove_drive) = @_;
5780
5781         my $conf = load_config($vmid);
5782
5783         if (!$drivehash) {
5784             check_lock($conf);
5785             die "you can't delete a snapshot if vm is a template\n"
5786                 if is_template($conf);
5787         }
5788
5789         $snap = $conf->{snapshots}->{$snapname};
5790
5791         die "snapshot '$snapname' does not exist\n" if !defined($snap);
5792
5793         # remove parent refs
5794         if (!$prepare) {
5795             &$unlink_parent($conf, $snap->{parent});
5796             foreach my $sn (keys %{$conf->{snapshots}}) {
5797                 next if $sn eq $snapname;
5798                 &$unlink_parent($conf->{snapshots}->{$sn}, $snap->{parent});
5799             }
5800         }
5801
5802         if ($remove_drive) {
5803             if ($remove_drive eq 'vmstate') {
5804                 delete $snap->{$remove_drive};
5805             } else {
5806                 my $drive = parse_drive($remove_drive, $snap->{$remove_drive});
5807                 my $volid = $drive->{file};
5808                 delete $snap->{$remove_drive};
5809                 add_unused_volume($conf, $volid);
5810             }
5811         }
5812
5813         if ($prepare) {
5814             $snap->{snapstate} = 'delete';
5815         } else {
5816             delete $conf->{snapshots}->{$snapname};
5817             delete $conf->{lock} if $drivehash;
5818             foreach my $volid (@$unused) {
5819                 add_unused_volume($conf, $volid);
5820             }
5821         }
5822
5823         update_config_nolock($vmid, $conf, 1);
5824     };
5825
5826     lock_config($vmid, $updatefn);
5827
5828     # now remove vmstate file
5829
5830     my $storecfg = PVE::Storage::config();
5831
5832     if ($snap->{vmstate}) {
5833         eval {  PVE::Storage::vdisk_free($storecfg, $snap->{vmstate}); };
5834         if (my $err = $@) {
5835             die $err if !$force;
5836             warn $err;
5837         }
5838         # save changes (remove vmstate from snapshot)
5839         lock_config($vmid, $updatefn, 'vmstate') if !$force;
5840     };
5841
5842     # now remove all internal snapshots
5843     foreach_drive($snap, sub {
5844         my ($ds, $drive) = @_;
5845
5846         return if drive_is_cdrom($drive);
5847
5848         my $volid = $drive->{file};
5849         my $device = "drive-$ds";
5850
5851         if (!$drivehash || $drivehash->{$ds}) {
5852             eval { qemu_volume_snapshot_delete($vmid, $device, $storecfg, $volid, $snapname); };
5853             if (my $err = $@) {
5854                 die $err if !$force;
5855                 warn $err;
5856             }
5857         }
5858
5859         # save changes (remove drive fron snapshot)
5860         lock_config($vmid, $updatefn, $ds) if !$force;
5861         push @$unused, $volid;
5862     });
5863
5864     # now cleanup config
5865     $prepare = 0;
5866     lock_config($vmid, $updatefn);
5867 }
5868
5869 sub has_feature {
5870     my ($feature, $conf, $storecfg, $snapname, $running) = @_;
5871
5872     my $err;
5873     foreach_drive($conf, sub {
5874         my ($ds, $drive) = @_;
5875
5876         return if drive_is_cdrom($drive);
5877         my $volid = $drive->{file};
5878         $err = 1 if !PVE::Storage::volume_has_feature($storecfg, $feature, $volid, $snapname, $running);
5879     });
5880
5881     return $err ? 0 : 1;
5882 }
5883
5884 sub template_create {
5885     my ($vmid, $conf, $disk) = @_;
5886
5887     my $storecfg = PVE::Storage::config();
5888
5889     foreach_drive($conf, sub {
5890         my ($ds, $drive) = @_;
5891
5892         return if drive_is_cdrom($drive);
5893         return if $disk && $ds ne $disk;
5894
5895         my $volid = $drive->{file};
5896         return if !PVE::Storage::volume_has_feature($storecfg, 'template', $volid);
5897
5898         my $voliddst = PVE::Storage::vdisk_create_base($storecfg, $volid);
5899         $drive->{file} = $voliddst;
5900         $conf->{$ds} = print_drive($vmid, $drive);
5901         update_config_nolock($vmid, $conf, 1);
5902     });
5903 }
5904
5905 sub is_template {
5906     my ($conf) = @_;
5907
5908     return 1 if defined $conf->{template} && $conf->{template} == 1;
5909 }
5910
5911 sub qemu_img_convert {
5912     my ($src_volid, $dst_volid, $size, $snapname) = @_;
5913
5914     my $storecfg = PVE::Storage::config();
5915     my ($src_storeid, $src_volname) = PVE::Storage::parse_volume_id($src_volid, 1);
5916     my ($dst_storeid, $dst_volname) = PVE::Storage::parse_volume_id($dst_volid, 1);
5917
5918     if ($src_storeid && $dst_storeid) {
5919         my $src_scfg = PVE::Storage::storage_config($storecfg, $src_storeid);
5920         my $dst_scfg = PVE::Storage::storage_config($storecfg, $dst_storeid);
5921
5922         my $src_format = qemu_img_format($src_scfg, $src_volname);
5923         my $dst_format = qemu_img_format($dst_scfg, $dst_volname);
5924
5925         my $src_path = PVE::Storage::path($storecfg, $src_volid, $snapname);
5926         my $dst_path = PVE::Storage::path($storecfg, $dst_volid);
5927
5928         my $cmd = [];
5929         push @$cmd, '/usr/bin/qemu-img', 'convert', '-t', 'writeback', '-p', '-n';
5930         push @$cmd, '-s', $snapname if($snapname && $src_format eq "qcow2");
5931         push @$cmd, '-f', $src_format, '-O', $dst_format, $src_path, $dst_path;
5932
5933         my $parser = sub {
5934             my $line = shift;
5935             if($line =~ m/\((\S+)\/100\%\)/){
5936                 my $percent = $1;
5937                 my $transferred = int($size * $percent / 100);
5938                 my $remaining = $size - $transferred;
5939
5940                 print "transferred: $transferred bytes remaining: $remaining bytes total: $size bytes progression: $percent %\n";
5941             }
5942
5943         };
5944
5945         eval  { run_command($cmd, timeout => undef, outfunc => $parser); };
5946         my $err = $@;
5947         die "copy failed: $err" if $err;
5948     }
5949 }
5950
5951 sub qemu_img_format {
5952     my ($scfg, $volname) = @_;
5953
5954     if ($scfg->{path} && $volname =~ m/\.(raw|qcow2|qed|vmdk)$/) {
5955         return $1;
5956     } elsif ($scfg->{type} eq 'iscsi') {
5957         return "host_device";
5958     } else {
5959         return "raw";
5960     }
5961 }
5962
5963 sub qemu_drive_mirror {
5964     my ($vmid, $drive, $dst_volid, $vmiddst) = @_;
5965
5966     my $count = 0;
5967     my $old_len = 0;
5968     my $frozen = undef;
5969     my $maxwait = 120;
5970
5971     my $storecfg = PVE::Storage::config();
5972     my ($dst_storeid, $dst_volname) = PVE::Storage::parse_volume_id($dst_volid);
5973
5974     my $dst_scfg = PVE::Storage::storage_config($storecfg, $dst_storeid);
5975
5976     my $format;
5977     if ($dst_volname =~ m/\.(raw|qcow2)$/){
5978         $format = $1;
5979     }
5980
5981     my $dst_path = PVE::Storage::path($storecfg, $dst_volid);
5982
5983     my $opts = { timeout => 10, device => "drive-$drive", mode => "existing", sync => "full", target => $dst_path };
5984     $opts->{format} = $format if $format;
5985
5986     #fixme : sometime drive-mirror timeout, but works fine after.
5987     # (I have see the problem with big volume > 200GB), so we need to eval
5988     eval { vm_mon_cmd($vmid, "drive-mirror", %$opts); };
5989     # ignore errors here
5990
5991     eval {
5992         while (1) {
5993             my $stats = vm_mon_cmd($vmid, "query-block-jobs");
5994             my $stat = @$stats[0];
5995             die "mirroring job seem to have die. Maybe do you have bad sectors?" if !$stat;
5996             die "error job is not mirroring" if $stat->{type} ne "mirror";
5997
5998             my $busy = $stat->{busy};
5999
6000             if (my $total = $stat->{len}) {
6001                 my $transferred = $stat->{offset} || 0;
6002                 my $remaining = $total - $transferred;
6003                 my $percent = sprintf "%.2f", ($transferred * 100 / $total);
6004
6005                 print "transferred: $transferred bytes remaining: $remaining bytes total: $total bytes progression: $percent % busy: $busy\n";
6006             }
6007
6008             if ($stat->{len} == $stat->{offset}) {
6009                 if ($busy eq 'false') {
6010
6011                     last if $vmiddst != $vmid;
6012
6013                     # try to switch the disk if source and destination are on the same guest
6014                     eval { vm_mon_cmd($vmid, "block-job-complete", device => "drive-$drive") };
6015                     last if !$@;
6016                     die $@ if $@ !~ m/cannot be completed/;
6017                 }
6018
6019                 if ($count > $maxwait) {
6020                     # if too much writes to disk occurs at the end of migration
6021                     #the disk needs to be freezed to be able to complete the migration
6022                     vm_suspend($vmid,1);
6023                     $frozen = 1;
6024                 }
6025                 $count ++
6026             }
6027             $old_len = $stat->{offset};
6028             sleep 1;
6029         }
6030
6031         vm_resume($vmid, 1) if $frozen;
6032
6033     };
6034     my $err = $@;
6035
6036     my $cancel_job = sub {
6037         vm_mon_cmd($vmid, "block-job-cancel", device => "drive-$drive");
6038         while (1) {
6039             my $stats = vm_mon_cmd($vmid, "query-block-jobs");
6040             my $stat = @$stats[0];
6041             last if !$stat;
6042             sleep 1;
6043         }
6044     };
6045
6046     if ($err) {
6047         eval { &$cancel_job(); };
6048         die "mirroring error: $err";
6049     }
6050
6051     if ($vmiddst != $vmid) {
6052         # if we clone a disk for a new target vm, we don't switch the disk
6053         &$cancel_job(); # so we call block-job-cancel
6054     }
6055 }
6056
6057 sub clone_disk {
6058     my ($storecfg, $vmid, $running, $drivename, $drive, $snapname,
6059         $newvmid, $storage, $format, $full, $newvollist) = @_;
6060
6061     my $newvolid;
6062
6063     if (!$full) {
6064         print "create linked clone of drive $drivename ($drive->{file})\n";
6065         $newvolid = PVE::Storage::vdisk_clone($storecfg,  $drive->{file}, $newvmid, $snapname);
6066         push @$newvollist, $newvolid;
6067     } else {
6068         my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file});
6069         $storeid = $storage if $storage;
6070
6071         my ($defFormat, $validFormats) = PVE::Storage::storage_default_format($storecfg, $storeid);
6072         if (!$format) {
6073             $format = $drive->{format} || $defFormat;
6074         }
6075
6076         # test if requested format is supported - else use default
6077         my $supported = grep { $_ eq $format } @$validFormats;
6078         $format = $defFormat if !$supported;
6079
6080         my ($size) = PVE::Storage::volume_size_info($storecfg, $drive->{file}, 3);
6081
6082         print "create full clone of drive $drivename ($drive->{file})\n";
6083         $newvolid = PVE::Storage::vdisk_alloc($storecfg, $storeid, $newvmid, $format, undef, ($size/1024));
6084         push @$newvollist, $newvolid;
6085
6086         if (!$running || $snapname) {
6087             qemu_img_convert($drive->{file}, $newvolid, $size, $snapname);
6088         } else {
6089             qemu_drive_mirror($vmid, $drivename, $newvolid, $newvmid);
6090         }
6091     }
6092
6093     my ($size) = PVE::Storage::volume_size_info($storecfg, $newvolid, 3);
6094
6095     my $disk = $drive;
6096     $disk->{format} = undef;
6097     $disk->{file} = $newvolid;
6098     $disk->{size} = $size;
6099
6100     return $disk;
6101 }
6102
6103 # this only works if VM is running
6104 sub get_current_qemu_machine {
6105     my ($vmid) = @_;
6106
6107     my $cmd = { execute => 'query-machines', arguments => {} };
6108     my $res = vm_qmp_command($vmid, $cmd);
6109
6110     my ($current, $default);
6111     foreach my $e (@$res) {
6112         $default = $e->{name} if $e->{'is-default'};
6113         $current = $e->{name} if $e->{'is-current'};
6114     }
6115
6116     # fallback to the default machine if current is not supported by qemu
6117     return $current || $default || 'pc';
6118 }
6119
6120 sub qemu_machine_feature_enabled {
6121     my ($machine, $kvmver, $version_major, $version_minor) = @_;
6122
6123     my $current_major;
6124     my $current_minor;
6125
6126     if ($machine && $machine =~ m/^(pc(-i440fx|-q35)?-(\d+)\.(\d+))/) {
6127
6128         $current_major = $3;
6129         $current_minor = $4;
6130
6131     } elsif ($kvmver =~ m/^(\d+)\.(\d+)/) {
6132
6133         $current_major = $1;
6134         $current_minor = $2;
6135     }
6136
6137     return 1 if $current_major >= $version_major && $current_minor >= $version_minor;
6138
6139
6140 }
6141
6142 sub lspci {
6143
6144     my $devices = {};
6145
6146     dir_glob_foreach("$pcisysfs/devices", '[a-f0-9]{4}:([a-f0-9]{2}:[a-f0-9]{2})\.([0-9])', sub {
6147             my (undef, $id, $function) = @_;
6148             my $res = { id => $id, function => $function};
6149             push @{$devices->{$id}}, $res;
6150     });
6151
6152     return $devices;
6153 }
6154
6155 1;