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
2406         $d->{name} = $conf->{name} || "VM $vmid";
2407         $d->{maxmem} = $conf->{memory} ? $conf->{memory}*(1024*1024) : 0;
2408
2409         if ($conf->{balloon}) {
2410             $d->{balloon_min} = $conf->{balloon}*(1024*1024);
2411             $d->{shares} = defined($conf->{shares}) ? $conf->{shares} : 1000;
2412         }
2413
2414         $d->{uptime} = 0;
2415         $d->{cpu} = 0;
2416         $d->{mem} = 0;
2417
2418         $d->{netout} = 0;
2419         $d->{netin} = 0;
2420
2421         $d->{diskread} = 0;
2422         $d->{diskwrite} = 0;
2423
2424         $d->{template} = is_template($conf);
2425
2426         $res->{$vmid} = $d;
2427     }
2428
2429     my $netdev = PVE::ProcFSTools::read_proc_net_dev();
2430     foreach my $dev (keys %$netdev) {
2431         next if $dev !~ m/^tap([1-9]\d*)i/;
2432         my $vmid = $1;
2433         my $d = $res->{$vmid};
2434         next if !$d;
2435
2436         $d->{netout} += $netdev->{$dev}->{receive};
2437         $d->{netin} += $netdev->{$dev}->{transmit};
2438     }
2439
2440     my $ctime = gettimeofday;
2441
2442     foreach my $vmid (keys %$list) {
2443
2444         my $d = $res->{$vmid};
2445         my $pid = $d->{pid};
2446         next if !$pid;
2447
2448         my $pstat = PVE::ProcFSTools::read_proc_pid_stat($pid);
2449         next if !$pstat; # not running
2450
2451         my $used = $pstat->{utime} + $pstat->{stime};
2452
2453         $d->{uptime} = int(($uptime - $pstat->{starttime})/$cpuinfo->{user_hz});
2454
2455         if ($pstat->{vsize}) {
2456             $d->{mem} = int(($pstat->{rss}/$pstat->{vsize})*$d->{maxmem});
2457         }
2458
2459         my $old = $last_proc_pid_stat->{$pid};
2460         if (!$old) {
2461             $last_proc_pid_stat->{$pid} = {
2462                 time => $ctime,
2463                 used => $used,
2464                 cpu => 0,
2465             };
2466             next;
2467         }
2468
2469         my $dtime = ($ctime -  $old->{time}) * $cpucount * $cpuinfo->{user_hz};
2470
2471         if ($dtime > 1000) {
2472             my $dutime = $used -  $old->{used};
2473
2474             $d->{cpu} = (($dutime/$dtime)* $cpucount) / $d->{cpus};
2475             $last_proc_pid_stat->{$pid} = {
2476                 time => $ctime,
2477                 used => $used,
2478                 cpu => $d->{cpu},
2479             };
2480         } else {
2481             $d->{cpu} = $old->{cpu};
2482         }
2483     }
2484
2485     return $res if !$full;
2486
2487     my $qmpclient = PVE::QMPClient->new();
2488
2489     my $ballooncb = sub {
2490         my ($vmid, $resp) = @_;
2491
2492         my $info = $resp->{'return'};
2493         return if !$info->{max_mem};
2494
2495         my $d = $res->{$vmid};
2496
2497         # use memory assigned to VM
2498         $d->{maxmem} = $info->{max_mem};
2499         $d->{balloon} = $info->{actual};
2500
2501         if (defined($info->{total_mem}) && defined($info->{free_mem})) {
2502             $d->{mem} = $info->{total_mem} - $info->{free_mem};
2503             $d->{freemem} = $info->{free_mem};
2504         }
2505
2506     };
2507
2508     my $blockstatscb = sub {
2509         my ($vmid, $resp) = @_;
2510         my $data = $resp->{'return'} || [];
2511         my $totalrdbytes = 0;
2512         my $totalwrbytes = 0;
2513         for my $blockstat (@$data) {
2514             $totalrdbytes = $totalrdbytes + $blockstat->{stats}->{rd_bytes};
2515             $totalwrbytes = $totalwrbytes + $blockstat->{stats}->{wr_bytes};
2516         }
2517         $res->{$vmid}->{diskread} = $totalrdbytes;
2518         $res->{$vmid}->{diskwrite} = $totalwrbytes;
2519     };
2520
2521     my $statuscb = sub {
2522         my ($vmid, $resp) = @_;
2523
2524         $qmpclient->queue_cmd($vmid, $blockstatscb, 'query-blockstats');
2525         # this fails if ballon driver is not loaded, so this must be
2526         # the last commnand (following command are aborted if this fails).
2527         $qmpclient->queue_cmd($vmid, $ballooncb, 'query-balloon');
2528
2529         my $status = 'unknown';
2530         if (!defined($status = $resp->{'return'}->{status})) {
2531             warn "unable to get VM status\n";
2532             return;
2533         }
2534
2535         $res->{$vmid}->{qmpstatus} = $resp->{'return'}->{status};
2536     };
2537
2538     foreach my $vmid (keys %$list) {
2539         next if $opt_vmid && ($vmid ne $opt_vmid);
2540         next if !$res->{$vmid}->{pid}; # not running
2541         $qmpclient->queue_cmd($vmid, $statuscb, 'query-status');
2542     }
2543
2544     $qmpclient->queue_execute(undef, 1);
2545
2546     foreach my $vmid (keys %$list) {
2547         next if $opt_vmid && ($vmid ne $opt_vmid);
2548         $res->{$vmid}->{qmpstatus} = $res->{$vmid}->{status} if !$res->{$vmid}->{qmpstatus};
2549     }
2550
2551     return $res;
2552 }
2553
2554 sub foreach_dimm {
2555     my ($conf, $vmid, $memory, $sockets, $func) = @_;
2556
2557     my $dimm_id = 0;
2558     my $current_size = 1024;
2559     my $dimm_size = 512;
2560     return if $current_size == $memory;
2561
2562     for (my $j = 0; $j < 8; $j++) {
2563         for (my $i = 0; $i < 32; $i++) {
2564             my $name = "dimm${dimm_id}";
2565             $dimm_id++;
2566             my $numanode = $i % $sockets;
2567             $current_size += $dimm_size;
2568             &$func($conf, $vmid, $name, $dimm_size, $numanode, $current_size, $memory);
2569             return  $current_size if $current_size >= $memory;
2570         }
2571         $dimm_size *= 2;
2572     }
2573 }
2574
2575 sub foreach_drive {
2576     my ($conf, $func) = @_;
2577
2578     foreach my $ds (keys %$conf) {
2579         next if !valid_drivename($ds);
2580
2581         my $drive = parse_drive($ds, $conf->{$ds});
2582         next if !$drive;
2583
2584         &$func($ds, $drive);
2585     }
2586 }
2587
2588 sub foreach_volid {
2589     my ($conf, $func) = @_;
2590
2591     my $volhash = {};
2592
2593     my $test_volid = sub {
2594         my ($volid, $is_cdrom) = @_;
2595
2596         return if !$volid;
2597
2598         $volhash->{$volid} = $is_cdrom || 0;
2599     };
2600
2601     foreach_drive($conf, sub {
2602         my ($ds, $drive) = @_;
2603         &$test_volid($drive->{file}, drive_is_cdrom($drive));
2604     });
2605
2606     foreach my $snapname (keys %{$conf->{snapshots}}) {
2607         my $snap = $conf->{snapshots}->{$snapname};
2608         &$test_volid($snap->{vmstate}, 0);
2609         foreach_drive($snap, sub {
2610             my ($ds, $drive) = @_;
2611             &$test_volid($drive->{file}, drive_is_cdrom($drive));
2612         });
2613     }
2614
2615     foreach my $volid (keys %$volhash) {
2616         &$func($volid, $volhash->{$volid});
2617     }
2618 }
2619
2620 sub vga_conf_has_spice {
2621     my ($vga) = @_;
2622
2623     return 0 if !$vga || $vga !~ m/^qxl([234])?$/;
2624
2625     return $1 || 1;
2626 }
2627
2628 sub config_to_command {
2629     my ($storecfg, $vmid, $conf, $defaults, $forcemachine) = @_;
2630
2631     my $cmd = [];
2632     my $globalFlags = [];
2633     my $machineFlags = [];
2634     my $rtcFlags = [];
2635     my $cpuFlags = [];
2636     my $devices = [];
2637     my $pciaddr = '';
2638     my $bridges = {};
2639     my $kvmver = kvm_user_version();
2640     my $vernum = 0; # unknown
2641     if ($kvmver =~ m/^(\d+)\.(\d+)$/) {
2642         $vernum = $1*1000000+$2*1000;
2643     } elsif ($kvmver =~ m/^(\d+)\.(\d+)\.(\d+)$/) {
2644         $vernum = $1*1000000+$2*1000+$3;
2645     }
2646
2647     die "detected old qemu-kvm binary ($kvmver)\n" if $vernum < 15000;
2648
2649     my $have_ovz = -f '/proc/vz/vestat';
2650
2651     my $q35 = machine_type_is_q35($conf);
2652     my $hotplug_features = parse_hotplug_features(defined($conf->{hotplug}) ? $conf->{hotplug} : '1');
2653
2654     push @$cmd, '/usr/bin/kvm';
2655
2656     push @$cmd, '-id', $vmid;
2657
2658     my $use_virtio = 0;
2659
2660     my $qmpsocket = qmp_socket($vmid);
2661     push @$cmd, '-chardev', "socket,id=qmp,path=$qmpsocket,server,nowait";
2662     push @$cmd, '-mon', "chardev=qmp,mode=control";
2663
2664     my $socket = vnc_socket($vmid);
2665     push @$cmd,  '-vnc', "unix:$socket,x509,password";
2666
2667     push @$cmd, '-pidfile' , pidfile_name($vmid);
2668
2669     push @$cmd, '-daemonize';
2670
2671     if ($conf->{smbios1}) {
2672         push @$cmd, '-smbios', "type=1,$conf->{smbios1}";
2673     }
2674
2675     push @$cmd, '-object', "iothread,id=iothread0" if $conf->{iothread};
2676
2677     if ($q35) {
2678         # the q35 chipset support native usb2, so we enable usb controller
2679         # by default for this machine type
2680         push @$devices, '-readconfig', '/usr/share/qemu-server/pve-q35.cfg';
2681     } else {
2682         $pciaddr = print_pci_addr("piix3", $bridges);
2683         push @$devices, '-device', "piix3-usb-uhci,id=uhci$pciaddr.0x2";
2684
2685         my $use_usb2 = 0;
2686         for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
2687             next if !$conf->{"usb$i"};
2688             $use_usb2 = 1;
2689         }
2690         # include usb device config
2691         push @$devices, '-readconfig', '/usr/share/qemu-server/pve-usb.cfg' if $use_usb2;
2692     }
2693
2694     my $vga = $conf->{vga};
2695
2696     my $qxlnum = vga_conf_has_spice($vga);
2697     $vga = 'qxl' if $qxlnum;
2698
2699     if (!$vga) {
2700         if ($conf->{ostype} && ($conf->{ostype} eq 'win8' ||
2701                                 $conf->{ostype} eq 'win7' ||
2702                                 $conf->{ostype} eq 'w2k8')) {
2703             $vga = 'std';
2704         } else {
2705             $vga = 'cirrus';
2706         }
2707     }
2708
2709     # enable absolute mouse coordinates (needed by vnc)
2710     my $tablet;
2711     if (defined($conf->{tablet})) {
2712         $tablet = $conf->{tablet};
2713     } else {
2714         $tablet = $defaults->{tablet};
2715         $tablet = 0 if $qxlnum; # disable for spice because it is not needed
2716         $tablet = 0 if $vga =~ m/^serial\d+$/; # disable if we use serial terminal (no vga card)
2717     }
2718
2719     push @$devices, '-device', print_tabletdevice_full($conf) if $tablet;
2720
2721     # host pci devices
2722     for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
2723         my $d = parse_hostpci($conf->{"hostpci$i"});
2724         next if !$d;
2725
2726         my $pcie = $d->{pcie};
2727         if($pcie){
2728             die "q35 machine model is not enabled" if !$q35;
2729             $pciaddr = print_pcie_addr("hostpci$i");
2730         }else{
2731             $pciaddr = print_pci_addr("hostpci$i", $bridges);
2732         }
2733
2734         my $rombar = $d->{rombar} && $d->{rombar} eq 'off' ? ",rombar=0" : "";
2735         my $driver = $d->{driver} && $d->{driver} eq 'vfio' ? "vfio-pci" : "pci-assign";
2736         my $xvga = $d->{'x-vga'} && $d->{'x-vga'} eq 'on' ? ",x-vga=on" : "";
2737         if ($xvga && $xvga ne '') {
2738             push @$cpuFlags, 'kvm=off';
2739             $vga = 'none';
2740         }
2741         $driver = "vfio-pci" if $xvga ne '';
2742         my $pcidevices = $d->{pciid};
2743         my $multifunction = 1 if @$pcidevices > 1;
2744
2745         my $j=0;
2746         foreach my $pcidevice (@$pcidevices) {
2747
2748             my $id = "hostpci$i";
2749             $id .= ".$j" if $multifunction;
2750             my $addr = $pciaddr;
2751             $addr .= ".$j" if $multifunction;
2752             my $devicestr = "$driver,host=$pcidevice->{id}.$pcidevice->{function},id=$id$addr";
2753
2754             if($j == 0){
2755                 $devicestr .= "$rombar$xvga";
2756                 $devicestr .= ",multifunction=on" if $multifunction;
2757             }
2758
2759             push @$devices, '-device', $devicestr;
2760             $j++;
2761         }
2762     }
2763
2764     # usb devices
2765     for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
2766         my $d = parse_usb_device($conf->{"usb$i"});
2767         next if !$d;
2768         if ($d->{vendorid} && $d->{productid}) {
2769             push @$devices, '-device', "usb-host,vendorid=0x$d->{vendorid},productid=0x$d->{productid}";
2770         } elsif (defined($d->{hostbus}) && defined($d->{hostport})) {
2771             push @$devices, '-device', "usb-host,hostbus=$d->{hostbus},hostport=$d->{hostport}";
2772         } elsif ($d->{spice}) {
2773             # usb redir support for spice
2774             push @$devices, '-chardev', "spicevmc,id=usbredirchardev$i,name=usbredir";
2775             push @$devices, '-device', "usb-redir,chardev=usbredirchardev$i,id=usbredirdev$i,bus=ehci.0";
2776         }
2777     }
2778
2779     # serial devices
2780     for (my $i = 0; $i < $MAX_SERIAL_PORTS; $i++)  {
2781         if (my $path = $conf->{"serial$i"}) {
2782             if ($path eq 'socket') {
2783                 my $socket = "/var/run/qemu-server/${vmid}.serial$i";
2784                 push @$devices, '-chardev', "socket,id=serial$i,path=$socket,server,nowait";
2785                 push @$devices, '-device', "isa-serial,chardev=serial$i";
2786             } else {
2787                 die "no such serial device\n" if ! -c $path;
2788                 push @$devices, '-chardev', "tty,id=serial$i,path=$path";
2789                 push @$devices, '-device', "isa-serial,chardev=serial$i";
2790             }
2791         }
2792     }
2793
2794     # parallel devices
2795     for (my $i = 0; $i < $MAX_PARALLEL_PORTS; $i++)  {
2796         if (my $path = $conf->{"parallel$i"}) {
2797             die "no such parallel device\n" if ! -c $path;
2798             my $devtype = $path =~ m!^/dev/usb/lp! ? 'tty' : 'parport';
2799             push @$devices, '-chardev', "$devtype,id=parallel$i,path=$path";
2800             push @$devices, '-device', "isa-parallel,chardev=parallel$i";
2801         }
2802     }
2803
2804     my $vmname = $conf->{name} || "vm$vmid";
2805
2806     push @$cmd, '-name', $vmname;
2807
2808     my $sockets = 1;
2809     $sockets = $conf->{smp} if $conf->{smp}; # old style - no longer iused
2810     $sockets = $conf->{sockets} if  $conf->{sockets};
2811
2812     my $cores = $conf->{cores} || 1;
2813
2814     my $maxcpus = $sockets * $cores;
2815
2816     my $vcpus = $conf->{vcpus} ? $conf->{vcpus} : $maxcpus;
2817
2818     my $allowed_vcpus = $cpuinfo->{cpus};
2819
2820     die "MAX $maxcpus vcpus allowed per VM on this node\n"
2821         if ($allowed_vcpus < $maxcpus);
2822
2823     push @$cmd, '-smp', "$vcpus,sockets=$sockets,cores=$cores,maxcpus=$maxcpus";
2824
2825     push @$cmd, '-nodefaults';
2826
2827     my $bootorder = $conf->{boot} || $confdesc->{boot}->{default};
2828
2829     my $bootindex_hash = {};
2830     my $i = 1;
2831     foreach my $o (split(//, $bootorder)) {
2832         $bootindex_hash->{$o} = $i*100;
2833         $i++;
2834     }
2835
2836     push @$cmd, '-boot', "menu=on,strict=on,reboot-timeout=1000";
2837
2838     push @$cmd, '-no-acpi' if defined($conf->{acpi}) && $conf->{acpi} == 0;
2839
2840     push @$cmd, '-no-reboot' if  defined($conf->{reboot}) && $conf->{reboot} == 0;
2841
2842     push @$cmd, '-vga', $vga if $vga && $vga !~ m/^serial\d+$/; # for kvm 77 and later
2843
2844     # time drift fix
2845     my $tdf = defined($conf->{tdf}) ? $conf->{tdf} : $defaults->{tdf};
2846
2847     my $nokvm = defined($conf->{kvm}) && $conf->{kvm} == 0 ? 1 : 0;
2848     my $useLocaltime = $conf->{localtime};
2849
2850     if (my $ost = $conf->{ostype}) {
2851         # other, wxp, w2k, w2k3, w2k8, wvista, win7, win8, l24, l26, solaris
2852
2853         if ($ost =~ m/^w/) { # windows
2854             $useLocaltime = 1 if !defined($conf->{localtime});
2855
2856             # use time drift fix when acpi is enabled
2857             if (!(defined($conf->{acpi}) && $conf->{acpi} == 0)) {
2858                 $tdf = 1 if !defined($conf->{tdf});
2859             }
2860         }
2861
2862         if ($ost eq 'win7' || $ost eq 'win8' || $ost eq 'w2k8' ||
2863             $ost eq 'wvista') {
2864             push @$globalFlags, 'kvm-pit.lost_tick_policy=discard';
2865             push @$cmd, '-no-hpet';
2866             #push @$cpuFlags , 'hv_vapic" if !$nokvm;  #fixme, my win2008R2 hang at boot with this
2867             push @$cpuFlags , 'hv_spinlocks=0xffff' if !$nokvm;
2868         }
2869
2870         if ($ost eq 'win7' || $ost eq 'win8') {
2871             push @$cpuFlags , 'hv_relaxed' if !$nokvm;
2872         }
2873     }
2874
2875     push @$rtcFlags, 'driftfix=slew' if $tdf;
2876
2877     if ($nokvm) {
2878         push @$machineFlags, 'accel=tcg';
2879     } else {
2880         die "No accelerator found!\n" if !$cpuinfo->{hvm};
2881     }
2882
2883     my $machine_type = $forcemachine || $conf->{machine};
2884     if ($machine_type) {
2885         push @$machineFlags, "type=${machine_type}";
2886     }
2887
2888     if ($conf->{startdate}) {
2889         push @$rtcFlags, "base=$conf->{startdate}";
2890     } elsif ($useLocaltime) {
2891         push @$rtcFlags, 'base=localtime';
2892     }
2893
2894     my $cpu = $nokvm ? "qemu64" : "kvm64";
2895     $cpu = $conf->{cpu} if $conf->{cpu};
2896
2897     push @$cpuFlags , '+lahf_lm' if $cpu eq 'kvm64';
2898
2899     push @$cpuFlags , '+x2apic' if !$nokvm && $conf->{ostype} ne 'solaris';
2900
2901     push @$cpuFlags , '-x2apic' if $conf->{ostype} eq 'solaris';
2902
2903     push @$cpuFlags, '+sep' if $cpu eq 'kvm64' || $cpu eq 'kvm32';
2904
2905     $cpu .= "," . join(',', @$cpuFlags) if scalar(@$cpuFlags);
2906
2907     # Note: enforce needs kernel 3.10, so we do not use it for now
2908     # push @$cmd, '-cpu', "$cpu,enforce";
2909     push @$cmd, '-cpu', $cpu;
2910
2911     my $memory = $conf->{memory} || $defaults->{memory};
2912     my $static_memory = 0;
2913     my $dimm_memory = 0;
2914
2915     if ($hotplug_features->{memory}) {
2916         die "Numa need to be enabled for memory hotplug\n" if !$conf->{numa};
2917         die "Total memory is bigger than ${MAX_MEM}MB\n" if $memory > $MAX_MEM;
2918         $static_memory = $STATICMEM;
2919         die "minimum memory must be ${static_memory}MB\n" if($memory < $static_memory);
2920         $dimm_memory = $memory - $static_memory;
2921         push @$cmd, '-m', "size=${static_memory},slots=255,maxmem=${MAX_MEM}M";
2922
2923     } else {
2924
2925         $static_memory = $memory;
2926         push @$cmd, '-m', $static_memory;
2927     }
2928
2929     if ($conf->{numa}) {
2930
2931         my $numa_totalmemory = undef;
2932         for (my $i = 0; $i < $MAX_NUMA; $i++) {
2933             next if !$conf->{"numa$i"};
2934             my $numa = parse_numa($conf->{"numa$i"});
2935             next if !$numa;
2936             # memory
2937             die "missing numa node$i memory value\n" if !$numa->{memory};
2938             my $numa_memory = $numa->{memory};
2939             $numa_totalmemory += $numa_memory;
2940             my $numa_object = "memory-backend-ram,id=ram-node$i,size=${numa_memory}M";
2941
2942             # cpus
2943             my $cpus_start = $numa->{cpus}->{start};
2944             die "missing numa node$i cpus\n" if !defined($cpus_start);
2945             my $cpus_end = $numa->{cpus}->{end} if defined($numa->{cpus}->{end});
2946             my $cpus = $cpus_start;
2947             if (defined($cpus_end)) {
2948                 $cpus .= "-$cpus_end";
2949                 die "numa node$i :  cpu range $cpus is incorrect\n" if $cpus_end <= $cpus_start;
2950             }
2951
2952             # hostnodes
2953             my $hostnodes_start = $numa->{hostnodes}->{start};
2954             if (defined($hostnodes_start)) {
2955                 my $hostnodes_end = $numa->{hostnodes}->{end} if defined($numa->{hostnodes}->{end});
2956                 my $hostnodes = $hostnodes_start;
2957                 if (defined($hostnodes_end)) {
2958                     $hostnodes .= "-$hostnodes_end";
2959                     die "host node $hostnodes range is incorrect\n" if $hostnodes_end <= $hostnodes_start;
2960                 }
2961
2962                 my $hostnodes_end_range = defined($hostnodes_end) ? $hostnodes_end : $hostnodes_start;
2963                 for (my $i = $hostnodes_start; $i <= $hostnodes_end_range; $i++ ) {
2964                     die "host numa node$i don't exist\n" if ! -d "/sys/devices/system/node/node$i/";
2965                 }
2966
2967                 # policy
2968                 my $policy = $numa->{policy};
2969                 die "you need to define a policy for hostnode $hostnodes\n" if !$policy;
2970                 $numa_object .= ",host-nodes=$hostnodes,policy=$policy";
2971             }
2972
2973             push @$cmd, '-object', $numa_object;
2974             push @$cmd, '-numa', "node,nodeid=$i,cpus=$cpus,memdev=ram-node$i";
2975         }
2976
2977         die "total memory for NUMA nodes must be equal to vm static memory\n"
2978             if $numa_totalmemory && $numa_totalmemory != $static_memory;
2979
2980         #if no custom tology, we split memory and cores across numa nodes
2981         if(!$numa_totalmemory) {
2982
2983             my $numa_memory = ($static_memory / $sockets) . "M";
2984
2985             for (my $i = 0; $i < $sockets; $i++)  {
2986
2987                 my $cpustart = ($cores * $i);
2988                 my $cpuend = ($cpustart + $cores - 1) if $cores && $cores > 1;
2989                 my $cpus = $cpustart;
2990                 $cpus .= "-$cpuend" if $cpuend;
2991
2992                 push @$cmd, '-object', "memory-backend-ram,size=$numa_memory,id=ram-node$i";
2993                 push @$cmd, '-numa', "node,nodeid=$i,cpus=$cpus,memdev=ram-node$i";
2994             }
2995         }
2996     }
2997
2998     if ($hotplug_features->{memory}) {
2999         foreach_dimm($conf, $vmid, $memory, $sockets, sub {
3000             my ($conf, $vmid, $name, $dimm_size, $numanode, $current_size, $memory) = @_;
3001             push @$cmd, "-object" , "memory-backend-ram,id=mem-$name,size=${dimm_size}M";
3002             push @$cmd, "-device", "pc-dimm,id=$name,memdev=mem-$name,node=$numanode";
3003
3004             #if dimm_memory is not aligned to dimm map
3005             if($current_size > $memory) {
3006                  $conf->{memory} = $current_size;
3007                  update_config_nolock($vmid, $conf, 1);
3008             }
3009         });
3010     }
3011
3012     push @$cmd, '-S' if $conf->{freeze};
3013
3014     # set keyboard layout
3015     my $kb = $conf->{keyboard} || $defaults->{keyboard};
3016     push @$cmd, '-k', $kb if $kb;
3017
3018     # enable sound
3019     #my $soundhw = $conf->{soundhw} || $defaults->{soundhw};
3020     #push @$cmd, '-soundhw', 'es1370';
3021     #push @$cmd, '-soundhw', $soundhw if $soundhw;
3022
3023     if($conf->{agent}) {
3024         my $qgasocket = qmp_socket($vmid, 1);
3025         my $pciaddr = print_pci_addr("qga0", $bridges);
3026         push @$devices, '-chardev', "socket,path=$qgasocket,server,nowait,id=qga0";
3027         push @$devices, '-device', "virtio-serial,id=qga0$pciaddr";
3028         push @$devices, '-device', 'virtserialport,chardev=qga0,name=org.qemu.guest_agent.0';
3029     }
3030
3031     my $spice_port;
3032
3033     if ($qxlnum) {
3034         if ($qxlnum > 1) {
3035             if ($conf->{ostype} && $conf->{ostype} =~ m/^w/){
3036                 for(my $i = 1; $i < $qxlnum; $i++){
3037                     my $pciaddr = print_pci_addr("vga$i", $bridges);
3038                     push @$cmd, '-device', "qxl,id=vga$i,ram_size=67108864,vram_size=33554432$pciaddr";
3039                 }
3040             } else {
3041                 # assume other OS works like Linux
3042                 push @$cmd, '-global', 'qxl-vga.ram_size=134217728';
3043                 push @$cmd, '-global', 'qxl-vga.vram_size=67108864';
3044             }
3045         }
3046
3047         my $pciaddr = print_pci_addr("spice", $bridges);
3048
3049         $spice_port = PVE::Tools::next_spice_port();
3050
3051         push @$devices, '-spice', "tls-port=${spice_port},addr=127.0.0.1,tls-ciphers=DES-CBC3-SHA,seamless-migration=on";
3052
3053         push @$devices, '-device', "virtio-serial,id=spice$pciaddr";
3054         push @$devices, '-chardev', "spicevmc,id=vdagent,name=vdagent";
3055         push @$devices, '-device', "virtserialport,chardev=vdagent,name=com.redhat.spice.0";
3056     }
3057
3058     # enable balloon by default, unless explicitly disabled
3059     if (!defined($conf->{balloon}) || $conf->{balloon}) {
3060         $pciaddr = print_pci_addr("balloon0", $bridges);
3061         push @$devices, '-device', "virtio-balloon-pci,id=balloon0$pciaddr";
3062     }
3063
3064     if ($conf->{watchdog}) {
3065         my $wdopts = parse_watchdog($conf->{watchdog});
3066         $pciaddr = print_pci_addr("watchdog", $bridges);
3067         my $watchdog = $wdopts->{model} || 'i6300esb';
3068         push @$devices, '-device', "$watchdog$pciaddr";
3069         push @$devices, '-watchdog-action', $wdopts->{action} if $wdopts->{action};
3070     }
3071
3072     my $vollist = [];
3073     my $scsicontroller = {};
3074     my $ahcicontroller = {};
3075     my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : $defaults->{scsihw};
3076
3077     # Add iscsi initiator name if available
3078     if (my $initiator = get_initiator_name()) {
3079         push @$devices, '-iscsi', "initiator-name=$initiator";
3080     }
3081
3082     foreach_drive($conf, sub {
3083         my ($ds, $drive) = @_;
3084
3085         if (PVE::Storage::parse_volume_id($drive->{file}, 1)) {
3086             push @$vollist, $drive->{file};
3087         }
3088
3089         $use_virtio = 1 if $ds =~ m/^virtio/;
3090
3091         if (drive_is_cdrom ($drive)) {
3092             if ($bootindex_hash->{d}) {
3093                 $drive->{bootindex} = $bootindex_hash->{d};
3094                 $bootindex_hash->{d} += 1;
3095             }
3096         } else {
3097             if ($bootindex_hash->{c}) {
3098                 $drive->{bootindex} = $bootindex_hash->{c} if $conf->{bootdisk} && ($conf->{bootdisk} eq $ds);
3099                 $bootindex_hash->{c} += 1;
3100             }
3101         }
3102
3103         if ($drive->{interface} eq 'scsi') {
3104
3105             my $maxdev = ($scsihw !~ m/^lsi/) ? 256 : 7;
3106             my $controller = int($drive->{index} / $maxdev);
3107             $pciaddr = print_pci_addr("scsihw$controller", $bridges);
3108             push @$devices, '-device', "$scsihw,id=scsihw$controller$pciaddr" if !$scsicontroller->{$controller};
3109             $scsicontroller->{$controller}=1;
3110         }
3111
3112         if ($drive->{interface} eq 'sata') {
3113            my $controller = int($drive->{index} / $MAX_SATA_DISKS);
3114            $pciaddr = print_pci_addr("ahci$controller", $bridges);
3115            push @$devices, '-device', "ahci,id=ahci$controller,multifunction=on$pciaddr" if !$ahcicontroller->{$controller};
3116            $ahcicontroller->{$controller}=1;
3117         }
3118
3119         my $drive_cmd = print_drive_full($storecfg, $vmid, $drive);
3120         push @$devices, '-drive',$drive_cmd;
3121         push @$devices, '-device', print_drivedevice_full($storecfg, $conf, $vmid, $drive, $bridges);
3122     });
3123
3124     for (my $i = 0; $i < $MAX_NETS; $i++) {
3125          next if !$conf->{"net$i"};
3126          my $d = parse_net($conf->{"net$i"});
3127          next if !$d;
3128
3129          $use_virtio = 1 if $d->{model} eq 'virtio';
3130
3131          if ($bootindex_hash->{n}) {
3132             $d->{bootindex} = $bootindex_hash->{n};
3133             $bootindex_hash->{n} += 1;
3134          }
3135
3136          my $netdevfull = print_netdev_full($vmid,$conf,$d,"net$i");
3137          push @$devices, '-netdev', $netdevfull;
3138
3139          my $netdevicefull = print_netdevice_full($vmid,$conf,$d,"net$i",$bridges);
3140          push @$devices, '-device', $netdevicefull;
3141     }
3142
3143     if (!$q35) {
3144         # add pci bridges
3145         while (my ($k, $v) = each %$bridges) {
3146             $pciaddr = print_pci_addr("pci.$k");
3147             unshift @$devices, '-device', "pci-bridge,id=pci.$k,chassis_nr=$k$pciaddr" if $k > 0;
3148         }
3149     }
3150
3151     # hack: virtio with fairsched is unreliable, so we do not use fairsched
3152     # when the VM uses virtio devices.
3153     if (!$use_virtio && $have_ovz) {
3154
3155         my $cpuunits = defined($conf->{cpuunits}) ?
3156             $conf->{cpuunits} : $defaults->{cpuunits};
3157
3158         push @$cmd, '-cpuunits', $cpuunits if $cpuunits;
3159
3160         # fixme: cpulimit is currently ignored
3161         #push @$cmd, '-cpulimit', $conf->{cpulimit} if $conf->{cpulimit};
3162     }
3163
3164     # add custom args
3165     if ($conf->{args}) {
3166         my $aa = PVE::Tools::split_args($conf->{args});
3167         push @$cmd, @$aa;
3168     }
3169
3170     push @$cmd, @$devices;
3171     push @$cmd, '-rtc', join(',', @$rtcFlags)
3172         if scalar(@$rtcFlags);
3173     push @$cmd, '-machine', join(',', @$machineFlags)
3174         if scalar(@$machineFlags);
3175     push @$cmd, '-global', join(',', @$globalFlags)
3176         if scalar(@$globalFlags);
3177
3178     return wantarray ? ($cmd, $vollist, $spice_port) : $cmd;
3179 }
3180
3181 sub vnc_socket {
3182     my ($vmid) = @_;
3183     return "${var_run_tmpdir}/$vmid.vnc";
3184 }
3185
3186 sub spice_port {
3187     my ($vmid) = @_;
3188
3189     my $res = vm_mon_cmd($vmid, 'query-spice');
3190
3191     return $res->{'tls-port'} || $res->{'port'} || die "no spice port\n";
3192 }
3193
3194 sub qmp_socket {
3195     my ($vmid, $qga) = @_;
3196     my $sockettype = $qga ? 'qga' : 'qmp';
3197     return "${var_run_tmpdir}/$vmid.$sockettype";
3198 }
3199
3200 sub pidfile_name {
3201     my ($vmid) = @_;
3202     return "${var_run_tmpdir}/$vmid.pid";
3203 }
3204
3205 sub vm_devices_list {
3206     my ($vmid) = @_;
3207
3208     my $res = vm_mon_cmd($vmid, 'query-pci');
3209     my $devices = {};
3210     foreach my $pcibus (@$res) {
3211         foreach my $device (@{$pcibus->{devices}}) {
3212             next if !$device->{'qdev_id'};
3213             if ($device->{'pci_bridge'}) {
3214                 $devices->{$device->{'qdev_id'}} = 1;
3215                 foreach my $bridge_device (@{$device->{'pci_bridge'}->{devices}}) {
3216                     next if !$bridge_device->{'qdev_id'};
3217                     $devices->{$bridge_device->{'qdev_id'}} = 1;
3218                     $devices->{$device->{'qdev_id'}}++;
3219                 }
3220             } else {
3221                 $devices->{$device->{'qdev_id'}} = 1;
3222             }
3223         }
3224     }
3225
3226     my $resblock = vm_mon_cmd($vmid, 'query-block');
3227     foreach my $block (@$resblock) {
3228         if($block->{device} =~ m/^drive-(\S+)/){
3229                 $devices->{$1} = 1;
3230         }
3231     }
3232
3233     my $resmice = vm_mon_cmd($vmid, 'query-mice');
3234     foreach my $mice (@$resmice) {
3235         if ($mice->{name} eq 'QEMU HID Tablet') {
3236             $devices->{tablet} = 1;
3237             last;
3238         }
3239     }
3240
3241     return $devices;
3242 }
3243
3244 sub vm_deviceplug {
3245     my ($storecfg, $conf, $vmid, $deviceid, $device) = @_;
3246
3247     my $q35 = machine_type_is_q35($conf);
3248
3249     my $devices_list = vm_devices_list($vmid);
3250     return 1 if defined($devices_list->{$deviceid});
3251
3252     qemu_add_pci_bridge($storecfg, $conf, $vmid, $deviceid); # add PCI bridge if we need it for the device
3253
3254     if ($deviceid eq 'tablet') {
3255
3256         qemu_deviceadd($vmid, print_tabletdevice_full($conf));
3257
3258     } elsif ($deviceid =~ m/^(virtio)(\d+)$/) {
3259
3260         qemu_driveadd($storecfg, $vmid, $device);
3261         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
3262
3263         qemu_deviceadd($vmid, $devicefull);
3264         eval { qemu_deviceaddverify($vmid, $deviceid); };
3265         if (my $err = $@) {
3266             eval { qemu_drivedel($vmid, $deviceid); };
3267             warn $@ if $@;
3268             die $err;
3269         }
3270
3271     } elsif ($deviceid =~ m/^(scsihw)(\d+)$/) {
3272
3273         my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : "lsi";
3274         my $pciaddr = print_pci_addr($deviceid);
3275         my $devicefull = "$scsihw,id=$deviceid$pciaddr";
3276
3277         qemu_deviceadd($vmid, $devicefull);
3278         qemu_deviceaddverify($vmid, $deviceid);
3279
3280     } elsif ($deviceid =~ m/^(scsi)(\d+)$/) {
3281
3282         qemu_findorcreatescsihw($storecfg,$conf, $vmid, $device);
3283         qemu_driveadd($storecfg, $vmid, $device);
3284
3285         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
3286         eval { qemu_deviceadd($vmid, $devicefull); };
3287         if (my $err = $@) {
3288             eval { qemu_drivedel($vmid, $deviceid); };
3289             warn $@ if $@;
3290             die $err;
3291         }
3292
3293     } elsif ($deviceid =~ m/^(net)(\d+)$/) {
3294
3295         return undef if !qemu_netdevadd($vmid, $conf, $device, $deviceid);
3296         my $netdevicefull = print_netdevice_full($vmid, $conf, $device, $deviceid);
3297         qemu_deviceadd($vmid, $netdevicefull);
3298         eval { qemu_deviceaddverify($vmid, $deviceid); };
3299         if (my $err = $@) {
3300             eval { qemu_netdevdel($vmid, $deviceid); };
3301             warn $@ if $@;
3302             die $err;
3303         }
3304
3305     } elsif (!$q35 && $deviceid =~ m/^(pci\.)(\d+)$/) {
3306
3307         my $bridgeid = $2;
3308         my $pciaddr = print_pci_addr($deviceid);
3309         my $devicefull = "pci-bridge,id=pci.$bridgeid,chassis_nr=$bridgeid$pciaddr";
3310
3311         qemu_deviceadd($vmid, $devicefull);
3312         qemu_deviceaddverify($vmid, $deviceid);
3313
3314     } else {
3315         die "can't hotplug device '$deviceid'\n";
3316     }
3317
3318     return 1;
3319 }
3320
3321 # fixme: this should raise exceptions on error!
3322 sub vm_deviceunplug {
3323     my ($vmid, $conf, $deviceid) = @_;
3324
3325     my $devices_list = vm_devices_list($vmid);
3326     return 1 if !defined($devices_list->{$deviceid});
3327
3328     die "can't unplug bootdisk" if $conf->{bootdisk} && $conf->{bootdisk} eq $deviceid;
3329
3330     if ($deviceid eq 'tablet') {
3331
3332         qemu_devicedel($vmid, $deviceid);
3333
3334     } elsif ($deviceid =~ m/^(virtio)(\d+)$/) {
3335
3336         qemu_devicedel($vmid, $deviceid);
3337         qemu_devicedelverify($vmid, $deviceid);
3338         qemu_drivedel($vmid, $deviceid);
3339
3340     } elsif ($deviceid =~ m/^(lsi)(\d+)$/) {
3341
3342         qemu_devicedel($vmid, $deviceid);
3343
3344     } elsif ($deviceid =~ m/^(scsi)(\d+)$/) {
3345
3346         qemu_devicedel($vmid, $deviceid);
3347         qemu_drivedel($vmid, $deviceid);
3348
3349     } elsif ($deviceid =~ m/^(net)(\d+)$/) {
3350
3351         qemu_devicedel($vmid, $deviceid);
3352         qemu_devicedelverify($vmid, $deviceid);
3353         qemu_netdevdel($vmid, $deviceid);
3354
3355     } else {
3356         die "can't unplug device '$deviceid'\n";
3357     }
3358
3359     return 1;
3360 }
3361
3362 sub qemu_deviceadd {
3363     my ($vmid, $devicefull) = @_;
3364
3365     $devicefull = "driver=".$devicefull;
3366     my %options =  split(/[=,]/, $devicefull);
3367
3368     vm_mon_cmd($vmid, "device_add" , %options);
3369 }
3370
3371 sub qemu_devicedel {
3372     my ($vmid, $deviceid) = @_;
3373
3374     my $ret = vm_mon_cmd($vmid, "device_del", id => $deviceid);
3375 }
3376
3377 sub qemu_objectadd {
3378     my($vmid, $objectid, $qomtype) = @_;
3379
3380     vm_mon_cmd($vmid, "object-add", id => $objectid, "qom-type" => $qomtype);
3381
3382     return 1;
3383 }
3384
3385 sub qemu_objectdel {
3386     my($vmid, $objectid) = @_;
3387
3388     vm_mon_cmd($vmid, "object-del", id => $objectid);
3389
3390     return 1;
3391 }
3392
3393 sub qemu_driveadd {
3394     my ($storecfg, $vmid, $device) = @_;
3395
3396     my $drive = print_drive_full($storecfg, $vmid, $device);
3397     my $ret = vm_human_monitor_command($vmid, "drive_add auto \"$drive\"");
3398
3399     # If the command succeeds qemu prints: "OK"
3400     return 1 if $ret =~ m/OK/s;
3401
3402     die "adding drive failed: $ret\n";
3403 }
3404
3405 sub qemu_drivedel {
3406     my($vmid, $deviceid) = @_;
3407
3408     my $ret = vm_human_monitor_command($vmid, "drive_del drive-$deviceid");
3409     $ret =~ s/^\s+//;
3410
3411     return 1 if $ret eq "";
3412
3413     # NB: device not found errors mean the drive was auto-deleted and we ignore the error
3414     return 1 if $ret =~ m/Device \'.*?\' not found/s;
3415
3416     die "deleting drive $deviceid failed : $ret\n";
3417 }
3418
3419 sub qemu_deviceaddverify {
3420     my ($vmid, $deviceid) = @_;
3421
3422     for (my $i = 0; $i <= 5; $i++) {
3423          my $devices_list = vm_devices_list($vmid);
3424          return 1 if defined($devices_list->{$deviceid});
3425          sleep 1;
3426     }
3427
3428     die "error on hotplug device '$deviceid'\n";
3429 }
3430
3431
3432 sub qemu_devicedelverify {
3433     my ($vmid, $deviceid) = @_;
3434
3435     # need to verify that the device is correctly removed as device_del
3436     # is async and empty return is not reliable
3437
3438     for (my $i = 0; $i <= 5; $i++) {
3439          my $devices_list = vm_devices_list($vmid);
3440          return 1 if !defined($devices_list->{$deviceid});
3441          sleep 1;
3442     }
3443
3444     die "error on hot-unplugging device '$deviceid'\n";
3445 }
3446
3447 sub qemu_findorcreatescsihw {
3448     my ($storecfg, $conf, $vmid, $device) = @_;
3449
3450     my $maxdev = ($conf->{scsihw} && ($conf->{scsihw} !~ m/^lsi/)) ? 256 : 7;
3451     my $controller = int($device->{index} / $maxdev);
3452     my $scsihwid="scsihw$controller";
3453     my $devices_list = vm_devices_list($vmid);
3454
3455     if(!defined($devices_list->{$scsihwid})) {
3456         vm_deviceplug($storecfg, $conf, $vmid, $scsihwid);
3457     }
3458
3459     return 1;
3460 }
3461
3462 sub qemu_add_pci_bridge {
3463     my ($storecfg, $conf, $vmid, $device) = @_;
3464
3465     my $bridges = {};
3466
3467     my $bridgeid;
3468
3469     print_pci_addr($device, $bridges);
3470
3471     while (my ($k, $v) = each %$bridges) {
3472         $bridgeid = $k;
3473     }
3474     return 1 if !defined($bridgeid) || $bridgeid < 1;
3475
3476     my $bridge = "pci.$bridgeid";
3477     my $devices_list = vm_devices_list($vmid);
3478
3479     if (!defined($devices_list->{$bridge})) {
3480         vm_deviceplug($storecfg, $conf, $vmid, $bridge);
3481     }
3482
3483     return 1;
3484 }
3485
3486 sub qemu_set_link_status {
3487     my ($vmid, $device, $up) = @_;
3488
3489     vm_mon_cmd($vmid, "set_link", name => $device,
3490                up => $up ? JSON::true : JSON::false);
3491 }
3492
3493 sub qemu_netdevadd {
3494     my ($vmid, $conf, $device, $deviceid) = @_;
3495
3496     my $netdev = print_netdev_full($vmid, $conf, $device, $deviceid);
3497     my %options =  split(/[=,]/, $netdev);
3498
3499     vm_mon_cmd($vmid, "netdev_add",  %options);
3500     return 1;
3501 }
3502
3503 sub qemu_netdevdel {
3504     my ($vmid, $deviceid) = @_;
3505
3506     vm_mon_cmd($vmid, "netdev_del", id => $deviceid);
3507 }
3508
3509 sub qemu_cpu_hotplug {
3510     my ($vmid, $conf, $vcpus) = @_;
3511
3512     my $sockets = 1;
3513     $sockets = $conf->{smp} if $conf->{smp}; # old style - no longer iused
3514     $sockets = $conf->{sockets} if  $conf->{sockets};
3515     my $cores = $conf->{cores} || 1;
3516     my $maxcpus = $sockets * $cores;
3517
3518     $vcpus = $maxcpus if !$vcpus;
3519
3520     die "you can't add more vcpus than maxcpus\n"
3521         if $vcpus > $maxcpus;
3522
3523     my $currentvcpus = $conf->{vcpus} || $maxcpus;
3524     die "online cpu unplug is not yet possible\n"
3525         if $vcpus < $currentvcpus;
3526
3527     my $currentrunningvcpus = vm_mon_cmd($vmid, "query-cpus");
3528     die "vcpus in running vm is different than configuration\n"
3529         if scalar(@{$currentrunningvcpus}) != $currentvcpus;
3530
3531     for (my $i = $currentvcpus; $i < $vcpus; $i++) {
3532         vm_mon_cmd($vmid, "cpu-add", id => int($i));
3533     }
3534 }
3535
3536 sub qemu_memory_hotplug {
3537     my ($vmid, $conf, $defaults, $opt, $value) = @_;
3538
3539     return $value if !check_running($vmid);
3540
3541     my $memory = $conf->{memory} || $defaults->{memory};
3542     $value = $defaults->{memory} if !$value;
3543     return $value if $value == $memory;
3544
3545     my $static_memory = $STATICMEM;
3546     my $dimm_memory = $memory - $static_memory;
3547
3548     die "memory can't be lower than $static_memory MB" if $value < $static_memory;
3549     die "memory unplug is not yet available" if $value < $memory;
3550     die "you cannot add more memory than $MAX_MEM MB!\n" if $memory > $MAX_MEM;
3551
3552
3553     my $sockets = 1;
3554     $sockets = $conf->{sockets} if $conf->{sockets};
3555
3556     foreach_dimm($conf, $vmid, $value, $sockets, sub {
3557         my ($conf, $vmid, $name, $dimm_size, $numanode, $current_size, $memory) = @_;
3558
3559             return if $current_size <= $conf->{memory};
3560
3561             eval { vm_mon_cmd($vmid, "object-add", 'qom-type' => "memory-backend-ram", id => "mem-$name", props => { size => int($dimm_size*1024*1024) } ) };
3562             if (my $err = $@) {
3563                 eval { qemu_objectdel($vmid, "mem-$name"); };
3564                 die $err;
3565             }
3566
3567             eval { vm_mon_cmd($vmid, "device_add", driver => "pc-dimm", id => "$name", memdev => "mem-$name", node => $numanode) };
3568             if (my $err = $@) {
3569                 eval { qemu_objectdel($vmid, "mem-$name"); };
3570                 die $err;
3571             }
3572             #update conf after each succesful module hotplug
3573             $conf->{memory} = $current_size;
3574             update_config_nolock($vmid, $conf, 1);
3575     });
3576 }
3577
3578 sub qemu_block_set_io_throttle {
3579     my ($vmid, $deviceid, $bps, $bps_rd, $bps_wr, $iops, $iops_rd, $iops_wr) = @_;
3580
3581     return if !check_running($vmid) ;
3582
3583     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($iops_wr));
3584
3585 }
3586
3587 # old code, only used to shutdown old VM after update
3588 sub __read_avail {
3589     my ($fh, $timeout) = @_;
3590
3591     my $sel = new IO::Select;
3592     $sel->add($fh);
3593
3594     my $res = '';
3595     my $buf;
3596
3597     my @ready;
3598     while (scalar (@ready = $sel->can_read($timeout))) {
3599         my $count;
3600         if ($count = $fh->sysread($buf, 8192)) {
3601             if ($buf =~ /^(.*)\(qemu\) $/s) {
3602                 $res .= $1;
3603                 last;
3604             } else {
3605                 $res .= $buf;
3606             }
3607         } else {
3608             if (!defined($count)) {
3609                 die "$!\n";
3610             }
3611             last;
3612         }
3613     }
3614
3615     die "monitor read timeout\n" if !scalar(@ready);
3616
3617     return $res;
3618 }
3619
3620 # old code, only used to shutdown old VM after update
3621 sub vm_monitor_command {
3622     my ($vmid, $cmdstr, $nocheck) = @_;
3623
3624     my $res;
3625
3626     eval {
3627         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
3628
3629         my $sname = "${var_run_tmpdir}/$vmid.mon";
3630
3631         my $sock = IO::Socket::UNIX->new( Peer => $sname ) ||
3632             die "unable to connect to VM $vmid socket - $!\n";
3633
3634         my $timeout = 3;
3635
3636         # hack: migrate sometime blocks the monitor (when migrate_downtime
3637         # is set)
3638         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
3639             $timeout = 60*60; # 1 hour
3640         }
3641
3642         # read banner;
3643         my $data = __read_avail($sock, $timeout);
3644
3645         if ($data !~ m/^QEMU\s+(\S+)\s+monitor\s/) {
3646             die "got unexpected qemu monitor banner\n";
3647         }
3648
3649         my $sel = new IO::Select;
3650         $sel->add($sock);
3651
3652         if (!scalar(my @ready = $sel->can_write($timeout))) {
3653             die "monitor write error - timeout";
3654         }
3655
3656         my $fullcmd = "$cmdstr\r";
3657
3658         # syslog('info', "VM $vmid monitor command: $cmdstr");
3659
3660         my $b;
3661         if (!($b = $sock->syswrite($fullcmd)) || ($b != length($fullcmd))) {
3662             die "monitor write error - $!";
3663         }
3664
3665         return if ($cmdstr eq 'q') || ($cmdstr eq 'quit');
3666
3667         $timeout = 20;
3668
3669         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
3670             $timeout = 60*60; # 1 hour
3671         } elsif ($cmdstr =~ m/^(eject|change)/) {
3672             $timeout = 60; # note: cdrom mount command is slow
3673         }
3674         if ($res = __read_avail($sock, $timeout)) {
3675
3676             my @lines = split("\r?\n", $res);
3677
3678             shift @lines if $lines[0] !~ m/^unknown command/; # skip echo
3679
3680             $res = join("\n", @lines);
3681             $res .= "\n";
3682         }
3683     };
3684
3685     my $err = $@;
3686
3687     if ($err) {
3688         syslog("err", "VM $vmid monitor command failed - $err");
3689         die $err;
3690     }
3691
3692     return $res;
3693 }
3694
3695 sub qemu_block_resize {
3696     my ($vmid, $deviceid, $storecfg, $volid, $size) = @_;
3697
3698     my $running = check_running($vmid);
3699
3700     return if !PVE::Storage::volume_resize($storecfg, $volid, $size, $running);
3701
3702     return if !$running;
3703
3704     vm_mon_cmd($vmid, "block_resize", device => $deviceid, size => int($size));
3705
3706 }
3707
3708 sub qemu_volume_snapshot {
3709     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
3710
3711     my $running = check_running($vmid);
3712
3713     return if !PVE::Storage::volume_snapshot($storecfg, $volid, $snap, $running);
3714
3715     return if !$running;
3716
3717     vm_mon_cmd($vmid, "snapshot-drive", device => $deviceid, name => $snap);
3718
3719 }
3720
3721 sub qemu_volume_snapshot_delete {
3722     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
3723
3724     my $running = check_running($vmid);
3725
3726     return if !PVE::Storage::volume_snapshot_delete($storecfg, $volid, $snap, $running);
3727
3728     return if !$running;
3729
3730     vm_mon_cmd($vmid, "delete-drive-snapshot", device => $deviceid, name => $snap);
3731 }
3732
3733 sub set_migration_caps {
3734     my ($vmid) = @_;
3735
3736     my $cap_ref = [];
3737
3738     my $enabled_cap = {
3739         "auto-converge" => 1,
3740         "xbzrle" => 0,
3741         "x-rdma-pin-all" => 0,
3742         "zero-blocks" => 0,
3743     };
3744
3745     my $supported_capabilities = vm_mon_cmd_nocheck($vmid, "query-migrate-capabilities");
3746
3747     for my $supported_capability (@$supported_capabilities) {
3748         push @$cap_ref, {
3749             capability => $supported_capability->{capability},
3750             state => $enabled_cap->{$supported_capability->{capability}} ? JSON::true : JSON::false,
3751         };
3752     }
3753
3754     vm_mon_cmd_nocheck($vmid, "migrate-set-capabilities", capabilities => $cap_ref);
3755 }
3756
3757 my $fast_plug_option = {
3758     'lock' => 1,
3759     'name' => 1,
3760     'onboot' => 1,
3761     'shares' => 1,
3762     'startup' => 1,
3763 };
3764
3765 # hotplug changes in [PENDING]
3766 # $selection hash can be used to only apply specified options, for
3767 # example: { cores => 1 } (only apply changed 'cores')
3768 # $errors ref is used to return error messages
3769 sub vmconfig_hotplug_pending {
3770     my ($vmid, $conf, $storecfg, $selection, $errors) = @_;
3771
3772     my $defaults = load_defaults();
3773
3774     # commit values which do not have any impact on running VM first
3775     # Note: those option cannot raise errors, we we do not care about
3776     # $selection and always apply them.
3777
3778     my $add_error = sub {
3779         my ($opt, $msg) = @_;
3780         $errors->{$opt} = "hotplug problem - $msg";
3781     };
3782
3783     my $changes = 0;
3784     foreach my $opt (keys %{$conf->{pending}}) { # add/change
3785         if ($fast_plug_option->{$opt}) {
3786             $conf->{$opt} = $conf->{pending}->{$opt};
3787             delete $conf->{pending}->{$opt};
3788             $changes = 1;
3789         }
3790     }
3791
3792     if ($changes) {
3793         update_config_nolock($vmid, $conf, 1);
3794         $conf = load_config($vmid); # update/reload
3795     }
3796
3797     my $hotplug_features = parse_hotplug_features(defined($conf->{hotplug}) ? $conf->{hotplug} : '1');
3798
3799     my @delete = PVE::Tools::split_list($conf->{pending}->{delete});
3800     foreach my $opt (@delete) {
3801         next if $selection && !$selection->{$opt};
3802         eval {
3803             if ($opt eq 'hotplug') {
3804                 die "skip\n" if ($conf->{hotplug} =~ /memory/);
3805             } elsif ($opt eq 'tablet') {
3806                 die "skip\n" if !$hotplug_features->{usb};
3807                 if ($defaults->{tablet}) {
3808                     vm_deviceplug($storecfg, $conf, $vmid, $opt);
3809                 } else {
3810                     vm_deviceunplug($vmid, $conf, $opt);
3811                 }
3812             } elsif ($opt eq 'vcpus') {
3813                 die "skip\n" if !$hotplug_features->{cpu};
3814                 qemu_cpu_hotplug($vmid, $conf, undef);
3815             } elsif ($opt eq 'balloon') {
3816                 # enable balloon device is not hotpluggable
3817                 die "skip\n" if !defined($conf->{balloon}) || $conf->{balloon};
3818             } elsif ($fast_plug_option->{$opt}) {
3819                 # do nothing
3820             } elsif ($opt =~ m/^net(\d+)$/) {
3821                 die "skip\n" if !$hotplug_features->{network};
3822                 vm_deviceunplug($vmid, $conf, $opt);
3823             } elsif (valid_drivename($opt)) {
3824                 die "skip\n" if !$hotplug_features->{disk} || $opt =~ m/(ide|sata)(\d+)/;
3825                 vm_deviceunplug($vmid, $conf, $opt);
3826                 vmconfig_register_unused_drive($storecfg, $vmid, $conf, parse_drive($opt, $conf->{$opt}));
3827             } elsif ($opt =~ m/^memory$/) {
3828                 die "skip\n" if !$hotplug_features->{memory};
3829                 qemu_memory_hotplug($vmid, $conf, $defaults, $opt);
3830             } else {
3831                 die "skip\n";
3832             }
3833         };
3834         if (my $err = $@) {
3835             &$add_error($opt, $err) if $err ne "skip\n";
3836         } else {
3837             # save new config if hotplug was successful
3838             delete $conf->{$opt};
3839             vmconfig_undelete_pending_option($conf, $opt);
3840             update_config_nolock($vmid, $conf, 1);
3841             $conf = load_config($vmid); # update/reload
3842         }
3843     }
3844
3845     foreach my $opt (keys %{$conf->{pending}}) {
3846         next if $selection && !$selection->{$opt};
3847         my $value = $conf->{pending}->{$opt};
3848         eval {
3849             if ($opt eq 'hotplug') {
3850                 die "skip\n" if ($value =~ /memory/) || ($value !~ /memory/ && $conf->{hotplug} =~ /memory/);
3851             } elsif ($opt eq 'tablet') {
3852                 die "skip\n" if !$hotplug_features->{usb};
3853                 if ($value == 1) {
3854                     vm_deviceplug($storecfg, $conf, $vmid, $opt);
3855                 } elsif ($value == 0) {
3856                     vm_deviceunplug($vmid, $conf, $opt);
3857                 }
3858             } elsif ($opt eq 'vcpus') {
3859                 die "skip\n" if !$hotplug_features->{cpu};
3860                 qemu_cpu_hotplug($vmid, $conf, $value);
3861             } elsif ($opt eq 'balloon') {
3862                 # enable/disable balloning device is not hotpluggable
3863                 my $old_balloon_enabled =  !!(!defined($conf->{balloon}) || $conf->{balloon});
3864                 my $new_balloon_enabled =  !!(!defined($conf->{pending}->{balloon}) || $conf->{pending}->{balloon});
3865                 die "skip\n" if $old_balloon_enabled != $new_balloon_enabled;
3866
3867                 # allow manual ballooning if shares is set to zero
3868                 if (!(defined($conf->{shares}) && ($conf->{shares} == 0))) {
3869                     my $balloon = $conf->{pending}->{balloon} || $conf->{memory} || $defaults->{memory};
3870                     vm_mon_cmd($vmid, "balloon", value => $balloon*1024*1024);
3871                 }
3872             } elsif ($opt =~ m/^net(\d+)$/) {
3873                 # some changes can be done without hotplug
3874                 vmconfig_update_net($storecfg, $conf, $hotplug_features->{network},
3875                                     $vmid, $opt, $value);
3876             } elsif (valid_drivename($opt)) {
3877                 # some changes can be done without hotplug
3878                 vmconfig_update_disk($storecfg, $conf, $hotplug_features->{disk},
3879                                      $vmid, $opt, $value, 1);
3880             } elsif ($opt =~ m/^memory$/) { #dimms
3881                 die "skip\n" if !$hotplug_features->{memory};
3882                 $value = qemu_memory_hotplug($vmid, $conf, $defaults, $opt, $value);
3883             } else {
3884                 die "skip\n";  # skip non-hot-pluggable options
3885             }
3886         };
3887         if (my $err = $@) {
3888             &$add_error($opt, $err) if $err ne "skip\n";
3889         } else {
3890             # save new config if hotplug was successful
3891             $conf->{$opt} = $value;
3892             delete $conf->{pending}->{$opt};
3893             update_config_nolock($vmid, $conf, 1);
3894             $conf = load_config($vmid); # update/reload
3895         }
3896     }
3897 }
3898
3899 sub vmconfig_apply_pending {
3900     my ($vmid, $conf, $storecfg) = @_;
3901
3902     # cold plug
3903
3904     my @delete = PVE::Tools::split_list($conf->{pending}->{delete});
3905     foreach my $opt (@delete) { # delete
3906         die "internal error" if $opt =~ m/^unused/;
3907         $conf = load_config($vmid); # update/reload
3908         if (!defined($conf->{$opt})) {
3909             vmconfig_undelete_pending_option($conf, $opt);
3910             update_config_nolock($vmid, $conf, 1);
3911         } elsif (valid_drivename($opt)) {
3912             vmconfig_register_unused_drive($storecfg, $vmid, $conf, parse_drive($opt, $conf->{$opt}));
3913             vmconfig_undelete_pending_option($conf, $opt);
3914             delete $conf->{$opt};
3915             update_config_nolock($vmid, $conf, 1);
3916         } else {
3917             vmconfig_undelete_pending_option($conf, $opt);
3918             delete $conf->{$opt};
3919             update_config_nolock($vmid, $conf, 1);
3920         }
3921     }
3922
3923     $conf = load_config($vmid); # update/reload
3924
3925     foreach my $opt (keys %{$conf->{pending}}) { # add/change
3926         $conf = load_config($vmid); # update/reload
3927
3928         if (defined($conf->{$opt}) && ($conf->{$opt} eq $conf->{pending}->{$opt})) {
3929             # skip if nothing changed
3930         } elsif (valid_drivename($opt)) {
3931             vmconfig_register_unused_drive($storecfg, $vmid, $conf, parse_drive($opt, $conf->{$opt}))
3932                 if defined($conf->{$opt});
3933             $conf->{$opt} = $conf->{pending}->{$opt};
3934         } else {
3935             $conf->{$opt} = $conf->{pending}->{$opt};
3936         }
3937
3938         delete $conf->{pending}->{$opt};
3939         update_config_nolock($vmid, $conf, 1);
3940     }
3941 }
3942
3943 my $safe_num_ne = sub {
3944     my ($a, $b) = @_;
3945
3946     return 0 if !defined($a) && !defined($b);
3947     return 1 if !defined($a);
3948     return 1 if !defined($b);
3949
3950     return $a != $b;
3951 };
3952
3953 my $safe_string_ne = sub {
3954     my ($a, $b) = @_;
3955
3956     return 0 if !defined($a) && !defined($b);
3957     return 1 if !defined($a);
3958     return 1 if !defined($b);
3959
3960     return $a ne $b;
3961 };
3962
3963 sub vmconfig_update_net {
3964     my ($storecfg, $conf, $hotplug, $vmid, $opt, $value) = @_;
3965
3966     my $newnet = parse_net($value);
3967
3968     if ($conf->{$opt}) {
3969         my $oldnet = parse_net($conf->{$opt});
3970
3971         if (&$safe_string_ne($oldnet->{model}, $newnet->{model}) ||
3972             &$safe_string_ne($oldnet->{macaddr}, $newnet->{macaddr}) ||
3973             &$safe_num_ne($oldnet->{queues}, $newnet->{queues}) ||
3974             !($newnet->{bridge} && $oldnet->{bridge})) { # bridge/nat mode change
3975
3976             # for non online change, we try to hot-unplug
3977             die "skip\n" if !$hotplug;
3978             vm_deviceunplug($vmid, $conf, $opt);
3979         } else {
3980
3981             die "internal error" if $opt !~ m/net(\d+)/;
3982             my $iface = "tap${vmid}i$1";
3983
3984             if (&$safe_num_ne($oldnet->{rate}, $newnet->{rate})) {
3985                 PVE::Network::tap_rate_limit($iface, $newnet->{rate});
3986             }
3987
3988             if (&$safe_string_ne($oldnet->{bridge}, $newnet->{bridge}) ||
3989                 &$safe_num_ne($oldnet->{tag}, $newnet->{tag}) ||
3990                 &$safe_num_ne($oldnet->{firewall}, $newnet->{firewall})) {
3991                 PVE::Network::tap_unplug($iface);
3992                 PVE::Network::tap_plug($iface, $newnet->{bridge}, $newnet->{tag}, $newnet->{firewall});
3993             }
3994
3995             if (&$safe_string_ne($oldnet->{link_down}, $newnet->{link_down})) {
3996                 qemu_set_link_status($vmid, $opt, !$newnet->{link_down});
3997             }
3998
3999             return 1;
4000         }
4001     }
4002
4003     if ($hotplug) {
4004         vm_deviceplug($storecfg, $conf, $vmid, $opt, $newnet);
4005     } else {
4006         die "skip\n";
4007     }
4008 }
4009
4010 sub vmconfig_update_disk {
4011     my ($storecfg, $conf, $hotplug, $vmid, $opt, $value, $force) = @_;
4012
4013     # fixme: do we need force?
4014
4015     my $drive = parse_drive($opt, $value);
4016
4017     if ($conf->{$opt}) {
4018
4019         if (my $old_drive = parse_drive($opt, $conf->{$opt}))  {
4020
4021             my $media = $drive->{media} || 'disk';
4022             my $oldmedia = $old_drive->{media} || 'disk';
4023             die "unable to change media type\n" if $media ne $oldmedia;
4024
4025             if (!drive_is_cdrom($old_drive)) {
4026
4027                 if ($drive->{file} ne $old_drive->{file}) {
4028
4029                     die "skip\n" if !$hotplug;
4030
4031                     # unplug and register as unused
4032                     vm_deviceunplug($vmid, $conf, $opt);
4033                     vmconfig_register_unused_drive($storecfg, $vmid, $conf, $old_drive)
4034
4035                 } else {
4036                     # update existing disk
4037
4038                     # skip non hotpluggable value
4039                     if (&$safe_num_ne($drive->{discard}, $old_drive->{discard}) ||
4040                         &$safe_string_ne($drive->{cache}, $old_drive->{cache})) {
4041                         die "skip\n";
4042                     }
4043
4044                     # apply throttle
4045                     if (&$safe_num_ne($drive->{mbps}, $old_drive->{mbps}) ||
4046                         &$safe_num_ne($drive->{mbps_rd}, $old_drive->{mbps_rd}) ||
4047                         &$safe_num_ne($drive->{mbps_wr}, $old_drive->{mbps_wr}) ||
4048                         &$safe_num_ne($drive->{iops}, $old_drive->{iops}) ||
4049                         &$safe_num_ne($drive->{iops_rd}, $old_drive->{iops_rd}) ||
4050                         &$safe_num_ne($drive->{iops_wr}, $old_drive->{iops_wr}) ||
4051                         &$safe_num_ne($drive->{mbps_max}, $old_drive->{mbps_max}) ||
4052                         &$safe_num_ne($drive->{mbps_rd_max}, $old_drive->{mbps_rd_max}) ||
4053                         &$safe_num_ne($drive->{mbps_wr_max}, $old_drive->{mbps_wr_max}) ||
4054                         &$safe_num_ne($drive->{iops_max}, $old_drive->{iops_max}) ||
4055                         &$safe_num_ne($drive->{iops_rd_max}, $old_drive->{iops_rd_max}) ||
4056                         &$safe_num_ne($drive->{iops_wr_max}, $old_drive->{iops_wr_max})) {
4057
4058                         qemu_block_set_io_throttle($vmid,"drive-$opt",
4059                                                    ($drive->{mbps} || 0)*1024*1024,
4060                                                    ($drive->{mbps_rd} || 0)*1024*1024,
4061                                                    ($drive->{mbps_wr} || 0)*1024*1024,
4062                                                    $drive->{iops} || 0,
4063                                                    $drive->{iops_rd} || 0,
4064                                                    $drive->{iops_wr} || 0,
4065                                                    ($drive->{mbps_max} || 0)*1024*1024,
4066                                                    ($drive->{mbps_rd_max} || 0)*1024*1024,
4067                                                    ($drive->{mbps_wr_max} || 0)*1024*1024,
4068                                                    $drive->{iops_max} || 0,
4069                                                    $drive->{iops_rd_max} || 0,
4070                                                    $drive->{iops_wr_max} || 0);
4071
4072                     }
4073
4074                     return 1;
4075                 }
4076
4077             } else { # cdrom
4078
4079                 if ($drive->{file} eq 'none') {
4080                     vm_mon_cmd($vmid, "eject",force => JSON::true,device => "drive-$opt");
4081                 } else {
4082                     my $path = get_iso_path($storecfg, $vmid, $drive->{file});
4083                     vm_mon_cmd($vmid, "eject", force => JSON::true,device => "drive-$opt"); # force eject if locked
4084                     vm_mon_cmd($vmid, "change", device => "drive-$opt",target => "$path") if $path;
4085                 }
4086
4087                 return 1;
4088             }
4089         }
4090     }
4091
4092     die "skip\n" if !$hotplug || $opt =~ m/(ide|sata)(\d+)/;
4093     # hotplug new disks
4094     vm_deviceplug($storecfg, $conf, $vmid, $opt, $drive);
4095 }
4096
4097 sub vm_start {
4098     my ($storecfg, $vmid, $statefile, $skiplock, $migratedfrom, $paused, $forcemachine, $spice_ticket) = @_;
4099
4100     lock_config($vmid, sub {
4101         my $conf = load_config($vmid, $migratedfrom);
4102
4103         die "you can't start a vm if it's a template\n" if is_template($conf);
4104
4105         check_lock($conf) if !$skiplock;
4106
4107         die "VM $vmid already running\n" if check_running($vmid, undef, $migratedfrom);
4108
4109         if (!$statefile && scalar(keys %{$conf->{pending}})) {
4110             vmconfig_apply_pending($vmid, $conf, $storecfg);
4111             $conf = load_config($vmid); # update/reload
4112         }
4113
4114         my $defaults = load_defaults();
4115
4116         # set environment variable useful inside network script
4117         $ENV{PVE_MIGRATED_FROM} = $migratedfrom if $migratedfrom;
4118
4119         my ($cmd, $vollist, $spice_port) = config_to_command($storecfg, $vmid, $conf, $defaults, $forcemachine);
4120
4121         my $migrate_port = 0;
4122         my $migrate_uri;
4123         if ($statefile) {
4124             if ($statefile eq 'tcp') {
4125                 my $localip = "localhost";
4126                 my $datacenterconf = PVE::Cluster::cfs_read_file('datacenter.cfg');
4127                 if ($datacenterconf->{migration_unsecure}) {
4128                         my $nodename = PVE::INotify::nodename();
4129                         $localip = PVE::Cluster::remote_node_ip($nodename, 1);
4130                 }
4131                 $migrate_port = PVE::Tools::next_migrate_port();
4132                 $migrate_uri = "tcp:${localip}:${migrate_port}";
4133                 push @$cmd, '-incoming', $migrate_uri;
4134                 push @$cmd, '-S';
4135             } else {
4136                 push @$cmd, '-loadstate', $statefile;
4137             }
4138         } elsif ($paused) {
4139             push @$cmd, '-S';
4140         }
4141
4142         # host pci devices
4143         for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
4144           my $d = parse_hostpci($conf->{"hostpci$i"});
4145           next if !$d;
4146           my $pcidevices = $d->{pciid};
4147           foreach my $pcidevice (@$pcidevices) {
4148                 my $pciid = $pcidevice->{id}.".".$pcidevice->{function};
4149
4150                 my $info = pci_device_info("0000:$pciid");
4151                 die "IOMMU not present\n" if !check_iommu_support();
4152                 die "no pci device info for device '$pciid'\n" if !$info;
4153
4154                 if ($d->{driver} && $d->{driver} eq "vfio") {
4155                     die "can't unbind/bind pci group to vfio '$pciid'\n" if !pci_dev_group_bind_to_vfio($pciid);
4156                 } else {
4157                     die "can't unbind/bind to stub pci device '$pciid'\n" if !pci_dev_bind_to_stub($info);
4158                 }
4159
4160                 die "can't reset pci device '$pciid'\n" if $info->{has_fl_reset} and !pci_dev_reset($info);
4161           }
4162         }
4163
4164         PVE::Storage::activate_volumes($storecfg, $vollist);
4165
4166         eval  { run_command($cmd, timeout => $statefile ? undef : 30,
4167                     umask => 0077); };
4168         my $err = $@;
4169         die "start failed: $err" if $err;
4170
4171         print "migration listens on $migrate_uri\n" if $migrate_uri;
4172
4173         if ($statefile && $statefile ne 'tcp')  {
4174             eval { vm_mon_cmd_nocheck($vmid, "cont"); };
4175             warn $@ if $@;
4176         }
4177
4178         if ($migratedfrom) {
4179
4180             eval {
4181                 set_migration_caps($vmid);
4182             };
4183             warn $@ if $@;
4184
4185             if ($spice_port) {
4186                 print "spice listens on port $spice_port\n";
4187                 if ($spice_ticket) {
4188                     vm_mon_cmd_nocheck($vmid, "set_password", protocol => 'spice', password => $spice_ticket);
4189                     vm_mon_cmd_nocheck($vmid, "expire_password", protocol => 'spice', time => "+30");
4190                 }
4191             }
4192
4193         } else {
4194
4195             if (!$statefile && (!defined($conf->{balloon}) || $conf->{balloon})) {
4196                 vm_mon_cmd_nocheck($vmid, "balloon", value => $conf->{balloon}*1024*1024)
4197                     if $conf->{balloon};
4198                 vm_mon_cmd_nocheck($vmid, 'qom-set',
4199                             path => "machine/peripheral/balloon0",
4200                             property => "guest-stats-polling-interval",
4201                             value => 2);
4202             }
4203
4204             foreach my $opt (keys %$conf) {
4205                 next if $opt !~  m/^net\d+$/;
4206                 my $nicconf = parse_net($conf->{$opt});
4207                 qemu_set_link_status($vmid, $opt, 0) if $nicconf->{link_down};
4208             }
4209         }
4210     });
4211 }
4212
4213 sub vm_mon_cmd {
4214     my ($vmid, $execute, %params) = @_;
4215
4216     my $cmd = { execute => $execute, arguments => \%params };
4217     vm_qmp_command($vmid, $cmd);
4218 }
4219
4220 sub vm_mon_cmd_nocheck {
4221     my ($vmid, $execute, %params) = @_;
4222
4223     my $cmd = { execute => $execute, arguments => \%params };
4224     vm_qmp_command($vmid, $cmd, 1);
4225 }
4226
4227 sub vm_qmp_command {
4228     my ($vmid, $cmd, $nocheck) = @_;
4229
4230     my $res;
4231
4232     my $timeout;
4233     if ($cmd->{arguments} && $cmd->{arguments}->{timeout}) {
4234         $timeout = $cmd->{arguments}->{timeout};
4235         delete $cmd->{arguments}->{timeout};
4236     }
4237
4238     eval {
4239         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
4240         my $sname = qmp_socket($vmid);
4241         if (-e $sname) { # test if VM is reasonambe new and supports qmp/qga
4242             my $qmpclient = PVE::QMPClient->new();
4243
4244             $res = $qmpclient->cmd($vmid, $cmd, $timeout);
4245         } elsif (-e "${var_run_tmpdir}/$vmid.mon") {
4246             die "can't execute complex command on old monitor - stop/start your vm to fix the problem\n"
4247                 if scalar(%{$cmd->{arguments}});
4248             vm_monitor_command($vmid, $cmd->{execute}, $nocheck);
4249         } else {
4250             die "unable to open monitor socket\n";
4251         }
4252     };
4253     if (my $err = $@) {
4254         syslog("err", "VM $vmid qmp command failed - $err");
4255         die $err;
4256     }
4257
4258     return $res;
4259 }
4260
4261 sub vm_human_monitor_command {
4262     my ($vmid, $cmdline) = @_;
4263
4264     my $res;
4265
4266     my $cmd = {
4267         execute => 'human-monitor-command',
4268         arguments => { 'command-line' => $cmdline},
4269     };
4270
4271     return vm_qmp_command($vmid, $cmd);
4272 }
4273
4274 sub vm_commandline {
4275     my ($storecfg, $vmid) = @_;
4276
4277     my $conf = load_config($vmid);
4278
4279     my $defaults = load_defaults();
4280
4281     my $cmd = config_to_command($storecfg, $vmid, $conf, $defaults);
4282
4283     return join(' ', @$cmd);
4284 }
4285
4286 sub vm_reset {
4287     my ($vmid, $skiplock) = @_;
4288
4289     lock_config($vmid, sub {
4290
4291         my $conf = load_config($vmid);
4292
4293         check_lock($conf) if !$skiplock;
4294
4295         vm_mon_cmd($vmid, "system_reset");
4296     });
4297 }
4298
4299 sub get_vm_volumes {
4300     my ($conf) = @_;
4301
4302     my $vollist = [];
4303     foreach_volid($conf, sub {
4304         my ($volid, $is_cdrom) = @_;
4305
4306         return if $volid =~ m|^/|;
4307
4308         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
4309         return if !$sid;
4310
4311         push @$vollist, $volid;
4312     });
4313
4314     return $vollist;
4315 }
4316
4317 sub vm_stop_cleanup {
4318     my ($storecfg, $vmid, $conf, $keepActive, $apply_pending_changes) = @_;
4319
4320     eval {
4321         fairsched_rmnod($vmid); # try to destroy group
4322
4323         if (!$keepActive) {
4324             my $vollist = get_vm_volumes($conf);
4325             PVE::Storage::deactivate_volumes($storecfg, $vollist);
4326         }
4327
4328         foreach my $ext (qw(mon qmp pid vnc qga)) {
4329             unlink "/var/run/qemu-server/${vmid}.$ext";
4330         }
4331
4332         vmconfig_apply_pending($vmid, $conf, $storecfg) if $apply_pending_changes;
4333     };
4334     warn $@ if $@; # avoid errors - just warn
4335 }
4336
4337 # Note: use $nockeck to skip tests if VM configuration file exists.
4338 # We need that when migration VMs to other nodes (files already moved)
4339 # Note: we set $keepActive in vzdump stop mode - volumes need to stay active
4340 sub vm_stop {
4341     my ($storecfg, $vmid, $skiplock, $nocheck, $timeout, $shutdown, $force, $keepActive, $migratedfrom) = @_;
4342
4343     $force = 1 if !defined($force) && !$shutdown;
4344
4345     if ($migratedfrom){
4346         my $pid = check_running($vmid, $nocheck, $migratedfrom);
4347         kill 15, $pid if $pid;
4348         my $conf = load_config($vmid, $migratedfrom);
4349         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive, 0);
4350         return;
4351     }
4352
4353     lock_config($vmid, sub {
4354
4355         my $pid = check_running($vmid, $nocheck);
4356         return if !$pid;
4357
4358         my $conf;
4359         if (!$nocheck) {
4360             $conf = load_config($vmid);
4361             check_lock($conf) if !$skiplock;
4362             if (!defined($timeout) && $shutdown && $conf->{startup}) {
4363                 my $opts = parse_startup($conf->{startup});
4364                 $timeout = $opts->{down} if $opts->{down};
4365             }
4366         }
4367
4368         $timeout = 60 if !defined($timeout);
4369
4370         eval {
4371             if ($shutdown) {
4372                 if (defined($conf) && $conf->{agent}) {
4373                     vm_qmp_command($vmid, { execute => "guest-shutdown" }, $nocheck);
4374                 } else {
4375                     vm_qmp_command($vmid, { execute => "system_powerdown" }, $nocheck);
4376                 }
4377             } else {
4378                 vm_qmp_command($vmid, { execute => "quit" }, $nocheck);
4379             }
4380         };
4381         my $err = $@;
4382
4383         if (!$err) {
4384             my $count = 0;
4385             while (($count < $timeout) && check_running($vmid, $nocheck)) {
4386                 $count++;
4387                 sleep 1;
4388             }
4389
4390             if ($count >= $timeout) {
4391                 if ($force) {
4392                     warn "VM still running - terminating now with SIGTERM\n";
4393                     kill 15, $pid;
4394                 } else {
4395                     die "VM quit/powerdown failed - got timeout\n";
4396                 }
4397             } else {
4398                 vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive, 1) if $conf;
4399                 return;
4400             }
4401         } else {
4402             if ($force) {
4403                 warn "VM quit/powerdown failed - terminating now with SIGTERM\n";
4404                 kill 15, $pid;
4405             } else {
4406                 die "VM quit/powerdown failed\n";
4407             }
4408         }
4409
4410         # wait again
4411         $timeout = 10;
4412
4413         my $count = 0;
4414         while (($count < $timeout) && check_running($vmid, $nocheck)) {
4415             $count++;
4416             sleep 1;
4417         }
4418
4419         if ($count >= $timeout) {
4420             warn "VM still running - terminating now with SIGKILL\n";
4421             kill 9, $pid;
4422             sleep 1;
4423         }
4424
4425         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive, 1) if $conf;
4426    });
4427 }
4428
4429 sub vm_suspend {
4430     my ($vmid, $skiplock) = @_;
4431
4432     lock_config($vmid, sub {
4433
4434         my $conf = load_config($vmid);
4435
4436         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
4437
4438         vm_mon_cmd($vmid, "stop");
4439     });
4440 }
4441
4442 sub vm_resume {
4443     my ($vmid, $skiplock) = @_;
4444
4445     lock_config($vmid, sub {
4446
4447         my $conf = load_config($vmid);
4448
4449         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
4450
4451         vm_mon_cmd($vmid, "cont");
4452     });
4453 }
4454
4455 sub vm_sendkey {
4456     my ($vmid, $skiplock, $key) = @_;
4457
4458     lock_config($vmid, sub {
4459
4460         my $conf = load_config($vmid);
4461
4462         # there is no qmp command, so we use the human monitor command
4463         vm_human_monitor_command($vmid, "sendkey $key");
4464     });
4465 }
4466
4467 sub vm_destroy {
4468     my ($storecfg, $vmid, $skiplock) = @_;
4469
4470     lock_config($vmid, sub {
4471
4472         my $conf = load_config($vmid);
4473
4474         check_lock($conf) if !$skiplock;
4475
4476         if (!check_running($vmid)) {
4477             fairsched_rmnod($vmid); # try to destroy group
4478             destroy_vm($storecfg, $vmid);
4479         } else {
4480             die "VM $vmid is running - destroy failed\n";
4481         }
4482     });
4483 }
4484
4485 # pci helpers
4486
4487 sub file_write {
4488     my ($filename, $buf) = @_;
4489
4490     my $fh = IO::File->new($filename, "w");
4491     return undef if !$fh;
4492
4493     my $res = print $fh $buf;
4494
4495     $fh->close();
4496
4497     return $res;
4498 }
4499
4500 sub pci_device_info {
4501     my ($name) = @_;
4502
4503     my $res;
4504
4505     return undef if $name !~ m/^([a-f0-9]{4}):([a-f0-9]{2}):([a-f0-9]{2})\.([a-f0-9])$/;
4506     my ($domain, $bus, $slot, $func) = ($1, $2, $3, $4);
4507
4508     my $irq = file_read_firstline("$pcisysfs/devices/$name/irq");
4509     return undef if !defined($irq) || $irq !~ m/^\d+$/;
4510
4511     my $vendor = file_read_firstline("$pcisysfs/devices/$name/vendor");
4512     return undef if !defined($vendor) || $vendor !~ s/^0x//;
4513
4514     my $product = file_read_firstline("$pcisysfs/devices/$name/device");
4515     return undef if !defined($product) || $product !~ s/^0x//;
4516
4517     $res = {
4518         name => $name,
4519         vendor => $vendor,
4520         product => $product,
4521         domain => $domain,
4522         bus => $bus,
4523         slot => $slot,
4524         func => $func,
4525         irq => $irq,
4526         has_fl_reset => -f "$pcisysfs/devices/$name/reset" || 0,
4527     };
4528
4529     return $res;
4530 }
4531
4532 sub pci_dev_reset {
4533     my ($dev) = @_;
4534
4535     my $name = $dev->{name};
4536
4537     my $fn = "$pcisysfs/devices/$name/reset";
4538
4539     return file_write($fn, "1");
4540 }
4541
4542 sub pci_dev_bind_to_stub {
4543     my ($dev) = @_;
4544
4545     my $name = $dev->{name};
4546
4547     my $testdir = "$pcisysfs/drivers/pci-stub/$name";
4548     return 1 if -d $testdir;
4549
4550     my $data = "$dev->{vendor} $dev->{product}";
4551     return undef if !file_write("$pcisysfs/drivers/pci-stub/new_id", $data);
4552
4553     my $fn = "$pcisysfs/devices/$name/driver/unbind";
4554     if (!file_write($fn, $name)) {
4555         return undef if -f $fn;
4556     }
4557
4558     $fn = "$pcisysfs/drivers/pci-stub/bind";
4559     if (! -d $testdir) {
4560         return undef if !file_write($fn, $name);
4561     }
4562
4563     return -d $testdir;
4564 }
4565
4566 sub pci_dev_bind_to_vfio {
4567     my ($dev) = @_;
4568
4569     my $name = $dev->{name};
4570
4571     my $vfio_basedir = "$pcisysfs/drivers/vfio-pci";
4572
4573     if (!-d $vfio_basedir) {
4574         system("/sbin/modprobe vfio-pci >/dev/null 2>/dev/null");
4575     }
4576     die "Cannot find vfio-pci module!\n" if !-d $vfio_basedir;
4577
4578     my $testdir = "$vfio_basedir/$name";
4579     return 1 if -d $testdir;
4580
4581     my $data = "$dev->{vendor} $dev->{product}";
4582     return undef if !file_write("$vfio_basedir/new_id", $data);
4583
4584     my $fn = "$pcisysfs/devices/$name/driver/unbind";
4585     if (!file_write($fn, $name)) {
4586         return undef if -f $fn;
4587     }
4588
4589     $fn = "$vfio_basedir/bind";
4590     if (! -d $testdir) {
4591         return undef if !file_write($fn, $name);
4592     }
4593
4594     return -d $testdir;
4595 }
4596
4597 sub pci_dev_group_bind_to_vfio {
4598     my ($pciid) = @_;
4599
4600     my $vfio_basedir = "$pcisysfs/drivers/vfio-pci";
4601
4602     if (!-d $vfio_basedir) {
4603         system("/sbin/modprobe vfio-pci >/dev/null 2>/dev/null");
4604     }
4605     die "Cannot find vfio-pci module!\n" if !-d $vfio_basedir;
4606
4607     # get IOMMU group devices
4608     opendir(my $D, "$pcisysfs/devices/0000:$pciid/iommu_group/devices/") || die "Cannot open iommu_group: $!\n";
4609       my @devs = grep /^0000:/, readdir($D);
4610     closedir($D);
4611
4612     foreach my $pciid (@devs) {
4613         $pciid =~ m/^([:\.\da-f]+)$/ or die "PCI ID $pciid not valid!\n";
4614
4615         # pci bridges, switches or root ports are not supported
4616         # they have a pci_bus subdirectory so skip them
4617         next if (-e "$pcisysfs/devices/$pciid/pci_bus");
4618
4619         my $info = pci_device_info($1);
4620         pci_dev_bind_to_vfio($info) || die "Cannot bind $pciid to vfio\n";
4621     }
4622
4623     return 1;
4624 }
4625
4626 sub print_pci_addr {
4627     my ($id, $bridges) = @_;
4628
4629     my $res = '';
4630     my $devices = {
4631         piix3 => { bus => 0, addr => 1 },
4632         #addr2 : first videocard
4633         balloon0 => { bus => 0, addr => 3 },
4634         watchdog => { bus => 0, addr => 4 },
4635         scsihw0 => { bus => 0, addr => 5 },
4636         scsihw1 => { bus => 0, addr => 6 },
4637         ahci0 => { bus => 0, addr => 7 },
4638         qga0 => { bus => 0, addr => 8 },
4639         spice => { bus => 0, addr => 9 },
4640         virtio0 => { bus => 0, addr => 10 },
4641         virtio1 => { bus => 0, addr => 11 },
4642         virtio2 => { bus => 0, addr => 12 },
4643         virtio3 => { bus => 0, addr => 13 },
4644         virtio4 => { bus => 0, addr => 14 },
4645         virtio5 => { bus => 0, addr => 15 },
4646         hostpci0 => { bus => 0, addr => 16 },
4647         hostpci1 => { bus => 0, addr => 17 },
4648         net0 => { bus => 0, addr => 18 },
4649         net1 => { bus => 0, addr => 19 },
4650         net2 => { bus => 0, addr => 20 },
4651         net3 => { bus => 0, addr => 21 },
4652         net4 => { bus => 0, addr => 22 },
4653         net5 => { bus => 0, addr => 23 },
4654         vga1 => { bus => 0, addr => 24 },
4655         vga2 => { bus => 0, addr => 25 },
4656         vga3 => { bus => 0, addr => 26 },
4657         hostpci2 => { bus => 0, addr => 27 },
4658         hostpci3 => { bus => 0, addr => 28 },
4659         #addr29 : usb-host (pve-usb.cfg)
4660         'pci.1' => { bus => 0, addr => 30 },
4661         'pci.2' => { bus => 0, addr => 31 },
4662         'net6' => { bus => 1, addr => 1 },
4663         'net7' => { bus => 1, addr => 2 },
4664         'net8' => { bus => 1, addr => 3 },
4665         'net9' => { bus => 1, addr => 4 },
4666         'net10' => { bus => 1, addr => 5 },
4667         'net11' => { bus => 1, addr => 6 },
4668         'net12' => { bus => 1, addr => 7 },
4669         'net13' => { bus => 1, addr => 8 },
4670         'net14' => { bus => 1, addr => 9 },
4671         'net15' => { bus => 1, addr => 10 },
4672         'net16' => { bus => 1, addr => 11 },
4673         'net17' => { bus => 1, addr => 12 },
4674         'net18' => { bus => 1, addr => 13 },
4675         'net19' => { bus => 1, addr => 14 },
4676         'net20' => { bus => 1, addr => 15 },
4677         'net21' => { bus => 1, addr => 16 },
4678         'net22' => { bus => 1, addr => 17 },
4679         'net23' => { bus => 1, addr => 18 },
4680         'net24' => { bus => 1, addr => 19 },
4681         'net25' => { bus => 1, addr => 20 },
4682         'net26' => { bus => 1, addr => 21 },
4683         'net27' => { bus => 1, addr => 22 },
4684         'net28' => { bus => 1, addr => 23 },
4685         'net29' => { bus => 1, addr => 24 },
4686         'net30' => { bus => 1, addr => 25 },
4687         'net31' => { bus => 1, addr => 26 },
4688         'virtio6' => { bus => 2, addr => 1 },
4689         'virtio7' => { bus => 2, addr => 2 },
4690         'virtio8' => { bus => 2, addr => 3 },
4691         'virtio9' => { bus => 2, addr => 4 },
4692         'virtio10' => { bus => 2, addr => 5 },
4693         'virtio11' => { bus => 2, addr => 6 },
4694         'virtio12' => { bus => 2, addr => 7 },
4695         'virtio13' => { bus => 2, addr => 8 },
4696         'virtio14' => { bus => 2, addr => 9 },
4697         'virtio15' => { bus => 2, addr => 10 },
4698     };
4699
4700     if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
4701            my $addr = sprintf("0x%x", $devices->{$id}->{addr});
4702            my $bus = $devices->{$id}->{bus};
4703            $res = ",bus=pci.$bus,addr=$addr";
4704            $bridges->{$bus} = 1 if $bridges;
4705     }
4706     return $res;
4707
4708 }
4709
4710 sub print_pcie_addr {
4711     my ($id) = @_;
4712
4713     my $res = '';
4714     my $devices = {
4715         hostpci0 => { bus => "ich9-pcie-port-1", addr => 0 },
4716         hostpci1 => { bus => "ich9-pcie-port-2", addr => 0 },
4717         hostpci2 => { bus => "ich9-pcie-port-3", addr => 0 },
4718         hostpci3 => { bus => "ich9-pcie-port-4", addr => 0 },
4719     };
4720
4721     if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
4722            my $addr = sprintf("0x%x", $devices->{$id}->{addr});
4723            my $bus = $devices->{$id}->{bus};
4724            $res = ",bus=$bus,addr=$addr";
4725     }
4726     return $res;
4727
4728 }
4729
4730 # vzdump restore implementaion
4731
4732 sub tar_archive_read_firstfile {
4733     my $archive = shift;
4734
4735     die "ERROR: file '$archive' does not exist\n" if ! -f $archive;
4736
4737     # try to detect archive type first
4738     my $pid = open (TMP, "tar tf '$archive'|") ||
4739         die "unable to open file '$archive'\n";
4740     my $firstfile = <TMP>;
4741     kill 15, $pid;
4742     close TMP;
4743
4744     die "ERROR: archive contaions no data\n" if !$firstfile;
4745     chomp $firstfile;
4746
4747     return $firstfile;
4748 }
4749
4750 sub tar_restore_cleanup {
4751     my ($storecfg, $statfile) = @_;
4752
4753     print STDERR "starting cleanup\n";
4754
4755     if (my $fd = IO::File->new($statfile, "r")) {
4756         while (defined(my $line = <$fd>)) {
4757             if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
4758                 my $volid = $2;
4759                 eval {
4760                     if ($volid =~ m|^/|) {
4761                         unlink $volid || die 'unlink failed\n';
4762                     } else {
4763                         PVE::Storage::vdisk_free($storecfg, $volid);
4764                     }
4765                     print STDERR "temporary volume '$volid' sucessfuly removed\n";
4766                 };
4767                 print STDERR "unable to cleanup '$volid' - $@" if $@;
4768             } else {
4769                 print STDERR "unable to parse line in statfile - $line";
4770             }
4771         }
4772         $fd->close();
4773     }
4774 }
4775
4776 sub restore_archive {
4777     my ($archive, $vmid, $user, $opts) = @_;
4778
4779     my $format = $opts->{format};
4780     my $comp;
4781
4782     if ($archive =~ m/\.tgz$/ || $archive =~ m/\.tar\.gz$/) {
4783         $format = 'tar' if !$format;
4784         $comp = 'gzip';
4785     } elsif ($archive =~ m/\.tar$/) {
4786         $format = 'tar' if !$format;
4787     } elsif ($archive =~ m/.tar.lzo$/) {
4788         $format = 'tar' if !$format;
4789         $comp = 'lzop';
4790     } elsif ($archive =~ m/\.vma$/) {
4791         $format = 'vma' if !$format;
4792     } elsif ($archive =~ m/\.vma\.gz$/) {
4793         $format = 'vma' if !$format;
4794         $comp = 'gzip';
4795     } elsif ($archive =~ m/\.vma\.lzo$/) {
4796         $format = 'vma' if !$format;
4797         $comp = 'lzop';
4798     } else {
4799         $format = 'vma' if !$format; # default
4800     }
4801
4802     # try to detect archive format
4803     if ($format eq 'tar') {
4804         return restore_tar_archive($archive, $vmid, $user, $opts);
4805     } else {
4806         return restore_vma_archive($archive, $vmid, $user, $opts, $comp);
4807     }
4808 }
4809
4810 sub restore_update_config_line {
4811     my ($outfd, $cookie, $vmid, $map, $line, $unique) = @_;
4812
4813     return if $line =~ m/^\#qmdump\#/;
4814     return if $line =~ m/^\#vzdump\#/;
4815     return if $line =~ m/^lock:/;
4816     return if $line =~ m/^unused\d+:/;
4817     return if $line =~ m/^parent:/;
4818     return if $line =~ m/^template:/; # restored VM is never a template
4819
4820     if (($line =~ m/^(vlan(\d+)):\s*(\S+)\s*$/)) {
4821         # try to convert old 1.X settings
4822         my ($id, $ind, $ethcfg) = ($1, $2, $3);
4823         foreach my $devconfig (PVE::Tools::split_list($ethcfg)) {
4824             my ($model, $macaddr) = split(/\=/, $devconfig);
4825             $macaddr = PVE::Tools::random_ether_addr() if !$macaddr || $unique;
4826             my $net = {
4827                 model => $model,
4828                 bridge => "vmbr$ind",
4829                 macaddr => $macaddr,
4830             };
4831             my $netstr = print_net($net);
4832
4833             print $outfd "net$cookie->{netcount}: $netstr\n";
4834             $cookie->{netcount}++;
4835         }
4836     } elsif (($line =~ m/^(net\d+):\s*(\S+)\s*$/) && $unique) {
4837         my ($id, $netstr) = ($1, $2);
4838         my $net = parse_net($netstr);
4839         $net->{macaddr} = PVE::Tools::random_ether_addr() if $net->{macaddr};
4840         $netstr = print_net($net);
4841         print $outfd "$id: $netstr\n";
4842     } elsif ($line =~ m/^((ide|scsi|virtio|sata)\d+):\s*(\S+)\s*$/) {
4843         my $virtdev = $1;
4844         my $value = $3;
4845         if ($line =~ m/backup=no/) {
4846             print $outfd "#$line";
4847         } elsif ($virtdev && $map->{$virtdev}) {
4848             my $di = parse_drive($virtdev, $value);
4849             delete $di->{format}; # format can change on restore
4850             $di->{file} = $map->{$virtdev};
4851             $value = print_drive($vmid, $di);
4852             print $outfd "$virtdev: $value\n";
4853         } else {
4854             print $outfd $line;
4855         }
4856     } else {
4857         print $outfd $line;
4858     }
4859 }
4860
4861 sub scan_volids {
4862     my ($cfg, $vmid) = @_;
4863
4864     my $info = PVE::Storage::vdisk_list($cfg, undef, $vmid);
4865
4866     my $volid_hash = {};
4867     foreach my $storeid (keys %$info) {
4868         foreach my $item (@{$info->{$storeid}}) {
4869             next if !($item->{volid} && $item->{size});
4870             $item->{path} = PVE::Storage::path($cfg, $item->{volid});
4871             $volid_hash->{$item->{volid}} = $item;
4872         }
4873     }
4874
4875     return $volid_hash;
4876 }
4877
4878 sub get_used_paths {
4879     my ($vmid, $storecfg, $conf, $scan_snapshots, $skip_drive) = @_;
4880
4881     my $used_path = {};
4882
4883     my $scan_config = sub {
4884         my ($cref, $snapname) = @_;
4885
4886         foreach my $key (keys %$cref) {
4887             my $value = $cref->{$key};
4888             if (valid_drivename($key)) {
4889                 next if $skip_drive && $key eq $skip_drive;
4890                 my $drive = parse_drive($key, $value);
4891                 next if !$drive || !$drive->{file} || drive_is_cdrom($drive);
4892                 if ($drive->{file} =~ m!^/!) {
4893                     $used_path->{$drive->{file}}++; # = 1;
4894                 } else {
4895                     my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file}, 1);
4896                     next if !$storeid;
4897                     my $scfg = PVE::Storage::storage_config($storecfg, $storeid, 1);
4898                     next if !$scfg;
4899                     my $path = PVE::Storage::path($storecfg, $drive->{file}, $snapname);
4900                     $used_path->{$path}++; # = 1;
4901                 }
4902             }
4903         }
4904     };
4905
4906     &$scan_config($conf);
4907
4908     undef $skip_drive;
4909
4910     if ($scan_snapshots) {
4911         foreach my $snapname (keys %{$conf->{snapshots}}) {
4912             &$scan_config($conf->{snapshots}->{$snapname}, $snapname);
4913         }
4914     }
4915
4916     return $used_path;
4917 }
4918
4919 sub update_disksize {
4920     my ($vmid, $conf, $volid_hash) = @_;
4921
4922     my $changes;
4923
4924     my $used = {};
4925
4926     # Note: it is allowed to define multiple storages with same path (alias), so
4927     # we need to check both 'volid' and real 'path' (two different volid can point
4928     # to the same path).
4929
4930     my $usedpath = {};
4931
4932     # update size info
4933     foreach my $opt (keys %$conf) {
4934         if (valid_drivename($opt)) {
4935             my $drive = parse_drive($opt, $conf->{$opt});
4936             my $volid = $drive->{file};
4937             next if !$volid;
4938
4939             $used->{$volid} = 1;
4940             if ($volid_hash->{$volid} &&
4941                 (my $path = $volid_hash->{$volid}->{path})) {
4942                 $usedpath->{$path} = 1;
4943             }
4944
4945             next if drive_is_cdrom($drive);
4946             next if !$volid_hash->{$volid};
4947
4948             $drive->{size} = $volid_hash->{$volid}->{size};
4949             my $new = print_drive($vmid, $drive);
4950             if ($new ne $conf->{$opt}) {
4951                 $changes = 1;
4952                 $conf->{$opt} = $new;
4953             }
4954         }
4955     }
4956
4957     # remove 'unusedX' entry if volume is used
4958     foreach my $opt (keys %$conf) {
4959         next if $opt !~ m/^unused\d+$/;
4960         my $volid = $conf->{$opt};
4961         my $path = $volid_hash->{$volid}->{path} if $volid_hash->{$volid};
4962         if ($used->{$volid} || ($path && $usedpath->{$path})) {
4963             $changes = 1;
4964             delete $conf->{$opt};
4965         }
4966     }
4967
4968     foreach my $volid (sort keys %$volid_hash) {
4969         next if $volid =~ m/vm-$vmid-state-/;
4970         next if $used->{$volid};
4971         my $path = $volid_hash->{$volid}->{path};
4972         next if !$path; # just to be sure
4973         next if $usedpath->{$path};
4974         $changes = 1;
4975         add_unused_volume($conf, $volid);
4976         $usedpath->{$path} = 1; # avoid to add more than once (aliases)
4977     }
4978
4979     return $changes;
4980 }
4981
4982 sub rescan {
4983     my ($vmid, $nolock) = @_;
4984
4985     my $cfg = PVE::Cluster::cfs_read_file("storage.cfg");
4986
4987     my $volid_hash = scan_volids($cfg, $vmid);
4988
4989     my $updatefn =  sub {
4990         my ($vmid) = @_;
4991
4992         my $conf = load_config($vmid);
4993
4994         check_lock($conf);
4995
4996         my $vm_volids = {};
4997         foreach my $volid (keys %$volid_hash) {
4998             my $info = $volid_hash->{$volid};
4999             $vm_volids->{$volid} = $info if $info->{vmid} && $info->{vmid} == $vmid;
5000         }
5001
5002         my $changes = update_disksize($vmid, $conf, $vm_volids);
5003
5004         update_config_nolock($vmid, $conf, 1) if $changes;
5005     };
5006
5007     if (defined($vmid)) {
5008         if ($nolock) {
5009             &$updatefn($vmid);
5010         } else {
5011             lock_config($vmid, $updatefn, $vmid);
5012         }
5013     } else {
5014         my $vmlist = config_list();
5015         foreach my $vmid (keys %$vmlist) {
5016             if ($nolock) {
5017                 &$updatefn($vmid);
5018             } else {
5019                 lock_config($vmid, $updatefn, $vmid);
5020             }
5021         }
5022     }
5023 }
5024
5025 sub restore_vma_archive {
5026     my ($archive, $vmid, $user, $opts, $comp) = @_;
5027
5028     my $input = $archive eq '-' ? "<&STDIN" : undef;
5029     my $readfrom = $archive;
5030
5031     my $uncomp = '';
5032     if ($comp) {
5033         $readfrom = '-';
5034         my $qarchive = PVE::Tools::shellquote($archive);
5035         if ($comp eq 'gzip') {
5036             $uncomp = "zcat $qarchive|";
5037         } elsif ($comp eq 'lzop') {
5038             $uncomp = "lzop -d -c $qarchive|";
5039         } else {
5040             die "unknown compression method '$comp'\n";
5041         }
5042
5043     }
5044
5045     my $tmpdir = "/var/tmp/vzdumptmp$$";
5046     rmtree $tmpdir;
5047
5048     # disable interrupts (always do cleanups)
5049     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
5050         warn "got interrupt - ignored\n";
5051     };
5052
5053     my $mapfifo = "/var/tmp/vzdumptmp$$.fifo";
5054     POSIX::mkfifo($mapfifo, 0600);
5055     my $fifofh;
5056
5057     my $openfifo = sub {
5058         open($fifofh, '>', $mapfifo) || die $!;
5059     };
5060
5061     my $cmd = "${uncomp}vma extract -v -r $mapfifo $readfrom $tmpdir";
5062
5063     my $oldtimeout;
5064     my $timeout = 5;
5065
5066     my $devinfo = {};
5067
5068     my $rpcenv = PVE::RPCEnvironment::get();
5069
5070     my $conffile = config_file($vmid);
5071     my $tmpfn = "$conffile.$$.tmp";
5072
5073     # Note: $oldconf is undef if VM does not exists
5074     my $oldconf = PVE::Cluster::cfs_read_file(cfs_config_path($vmid));
5075
5076     my $print_devmap = sub {
5077         my $virtdev_hash = {};
5078
5079         my $cfgfn = "$tmpdir/qemu-server.conf";
5080
5081         # we can read the config - that is already extracted
5082         my $fh = IO::File->new($cfgfn, "r") ||
5083             "unable to read qemu-server.conf - $!\n";
5084
5085         while (defined(my $line = <$fh>)) {
5086             if ($line =~ m/^\#qmdump\#map:(\S+):(\S+):(\S*):(\S*):$/) {
5087                 my ($virtdev, $devname, $storeid, $format) = ($1, $2, $3, $4);
5088                 die "archive does not contain data for drive '$virtdev'\n"
5089                     if !$devinfo->{$devname};
5090                 if (defined($opts->{storage})) {
5091                     $storeid = $opts->{storage} || 'local';
5092                 } elsif (!$storeid) {
5093                     $storeid = 'local';
5094                 }
5095                 $format = 'raw' if !$format;
5096                 $devinfo->{$devname}->{devname} = $devname;
5097                 $devinfo->{$devname}->{virtdev} = $virtdev;
5098                 $devinfo->{$devname}->{format} = $format;
5099                 $devinfo->{$devname}->{storeid} = $storeid;
5100
5101                 # check permission on storage
5102                 my $pool = $opts->{pool}; # todo: do we need that?
5103                 if ($user ne 'root@pam') {
5104                     $rpcenv->check($user, "/storage/$storeid", ['Datastore.AllocateSpace']);
5105                 }
5106
5107                 $virtdev_hash->{$virtdev} = $devinfo->{$devname};
5108             }
5109         }
5110
5111         foreach my $devname (keys %$devinfo) {
5112             die "found no device mapping information for device '$devname'\n"
5113                 if !$devinfo->{$devname}->{virtdev};
5114         }
5115
5116         my $cfg = cfs_read_file('storage.cfg');
5117
5118         # create empty/temp config
5119         if ($oldconf) {
5120             PVE::Tools::file_set_contents($conffile, "memory: 128\n");
5121             foreach_drive($oldconf, sub {
5122                 my ($ds, $drive) = @_;
5123
5124                 return if drive_is_cdrom($drive);
5125
5126                 my $volid = $drive->{file};
5127
5128                 return if !$volid || $volid =~ m|^/|;
5129
5130                 my ($path, $owner) = PVE::Storage::path($cfg, $volid);
5131                 return if !$path || !$owner || ($owner != $vmid);
5132
5133                 # Note: only delete disk we want to restore
5134                 # other volumes will become unused
5135                 if ($virtdev_hash->{$ds}) {
5136                     PVE::Storage::vdisk_free($cfg, $volid);
5137                 }
5138             });
5139         }
5140
5141         my $map = {};
5142         foreach my $virtdev (sort keys %$virtdev_hash) {
5143             my $d = $virtdev_hash->{$virtdev};
5144             my $alloc_size = int(($d->{size} + 1024 - 1)/1024);
5145             my $scfg = PVE::Storage::storage_config($cfg, $d->{storeid});
5146
5147             # test if requested format is supported
5148             my ($defFormat, $validFormats) = PVE::Storage::storage_default_format($cfg, $d->{storeid});
5149             my $supported = grep { $_ eq $d->{format} } @$validFormats;
5150             $d->{format} = $defFormat if !$supported;
5151
5152             my $volid = PVE::Storage::vdisk_alloc($cfg, $d->{storeid}, $vmid,
5153                                                   $d->{format}, undef, $alloc_size);
5154             print STDERR "new volume ID is '$volid'\n";
5155             $d->{volid} = $volid;
5156             my $path = PVE::Storage::path($cfg, $volid);
5157
5158             my $write_zeros = 1;
5159             # fixme: what other storages types initialize volumes with zero?
5160             if ($scfg->{type} eq 'dir' || $scfg->{type} eq 'nfs' || $scfg->{type} eq 'glusterfs' ||
5161                 $scfg->{type} eq 'sheepdog' || $scfg->{type} eq 'rbd') {
5162                 $write_zeros = 0;
5163             }
5164
5165             print $fifofh "${write_zeros}:$d->{devname}=$path\n";
5166
5167             print "map '$d->{devname}' to '$path' (write zeros = ${write_zeros})\n";
5168             $map->{$virtdev} = $volid;
5169         }
5170
5171         $fh->seek(0, 0) || die "seek failed - $!\n";
5172
5173         my $outfd = new IO::File ($tmpfn, "w") ||
5174             die "unable to write config for VM $vmid\n";
5175
5176         my $cookie = { netcount => 0 };
5177         while (defined(my $line = <$fh>)) {
5178             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
5179         }
5180
5181         $fh->close();
5182         $outfd->close();
5183     };
5184
5185     eval {
5186         # enable interrupts
5187         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
5188             die "interrupted by signal\n";
5189         };
5190         local $SIG{ALRM} = sub { die "got timeout\n"; };
5191
5192         $oldtimeout = alarm($timeout);
5193
5194         my $parser = sub {
5195             my $line = shift;
5196
5197             print "$line\n";
5198
5199             if ($line =~ m/^DEV:\sdev_id=(\d+)\ssize:\s(\d+)\sdevname:\s(\S+)$/) {
5200                 my ($dev_id, $size, $devname) = ($1, $2, $3);
5201                 $devinfo->{$devname} = { size => $size, dev_id => $dev_id };
5202             } elsif ($line =~ m/^CTIME: /) {
5203                 # we correctly received the vma config, so we can disable
5204                 # the timeout now for disk allocation (set to 10 minutes, so
5205                 # that we always timeout if something goes wrong)
5206                 alarm(600);
5207                 &$print_devmap();
5208                 print $fifofh "done\n";
5209                 my $tmp = $oldtimeout || 0;
5210                 $oldtimeout = undef;
5211                 alarm($tmp);
5212                 close($fifofh);
5213             }
5214         };
5215
5216         print "restore vma archive: $cmd\n";
5217         run_command($cmd, input => $input, outfunc => $parser, afterfork => $openfifo);
5218     };
5219     my $err = $@;
5220
5221     alarm($oldtimeout) if $oldtimeout;
5222
5223     unlink $mapfifo;
5224
5225     if ($err) {
5226         rmtree $tmpdir;
5227         unlink $tmpfn;
5228
5229         my $cfg = cfs_read_file('storage.cfg');
5230         foreach my $devname (keys %$devinfo) {
5231             my $volid = $devinfo->{$devname}->{volid};
5232             next if !$volid;
5233             eval {
5234                 if ($volid =~ m|^/|) {
5235                     unlink $volid || die 'unlink failed\n';
5236                 } else {
5237                     PVE::Storage::vdisk_free($cfg, $volid);
5238                 }
5239                 print STDERR "temporary volume '$volid' sucessfuly removed\n";
5240             };
5241             print STDERR "unable to cleanup '$volid' - $@" if $@;
5242         }
5243         die $err;
5244     }
5245
5246     rmtree $tmpdir;
5247
5248     rename($tmpfn, $conffile) ||
5249         die "unable to commit configuration file '$conffile'\n";
5250
5251     PVE::Cluster::cfs_update(); # make sure we read new file
5252
5253     eval { rescan($vmid, 1); };
5254     warn $@ if $@;
5255 }
5256
5257 sub restore_tar_archive {
5258     my ($archive, $vmid, $user, $opts) = @_;
5259
5260     if ($archive ne '-') {
5261         my $firstfile = tar_archive_read_firstfile($archive);
5262         die "ERROR: file '$archive' dos not lock like a QemuServer vzdump backup\n"
5263             if $firstfile ne 'qemu-server.conf';
5264     }
5265
5266     my $storecfg = cfs_read_file('storage.cfg');
5267
5268     # destroy existing data - keep empty config
5269     my $vmcfgfn = config_file($vmid);
5270     destroy_vm($storecfg, $vmid, 1) if -f $vmcfgfn;
5271
5272     my $tocmd = "/usr/lib/qemu-server/qmextract";
5273
5274     $tocmd .= " --storage " . PVE::Tools::shellquote($opts->{storage}) if $opts->{storage};
5275     $tocmd .= " --pool " . PVE::Tools::shellquote($opts->{pool}) if $opts->{pool};
5276     $tocmd .= ' --prealloc' if $opts->{prealloc};
5277     $tocmd .= ' --info' if $opts->{info};
5278
5279     # tar option "xf" does not autodetect compression when read from STDIN,
5280     # so we pipe to zcat
5281     my $cmd = "zcat -f|tar xf " . PVE::Tools::shellquote($archive) . " " .
5282         PVE::Tools::shellquote("--to-command=$tocmd");
5283
5284     my $tmpdir = "/var/tmp/vzdumptmp$$";
5285     mkpath $tmpdir;
5286
5287     local $ENV{VZDUMP_TMPDIR} = $tmpdir;
5288     local $ENV{VZDUMP_VMID} = $vmid;
5289     local $ENV{VZDUMP_USER} = $user;
5290
5291     my $conffile = config_file($vmid);
5292     my $tmpfn = "$conffile.$$.tmp";
5293
5294     # disable interrupts (always do cleanups)
5295     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
5296         print STDERR "got interrupt - ignored\n";
5297     };
5298
5299     eval {
5300         # enable interrupts
5301         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
5302             die "interrupted by signal\n";
5303         };
5304
5305         if ($archive eq '-') {
5306             print "extracting archive from STDIN\n";
5307             run_command($cmd, input => "<&STDIN");
5308         } else {
5309             print "extracting archive '$archive'\n";
5310             run_command($cmd);
5311         }
5312
5313         return if $opts->{info};
5314
5315         # read new mapping
5316         my $map = {};
5317         my $statfile = "$tmpdir/qmrestore.stat";
5318         if (my $fd = IO::File->new($statfile, "r")) {
5319             while (defined (my $line = <$fd>)) {
5320                 if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
5321                     $map->{$1} = $2 if $1;
5322                 } else {
5323                     print STDERR "unable to parse line in statfile - $line\n";
5324                 }
5325             }
5326             $fd->close();
5327         }
5328
5329         my $confsrc = "$tmpdir/qemu-server.conf";
5330
5331         my $srcfd = new IO::File($confsrc, "r") ||
5332             die "unable to open file '$confsrc'\n";
5333
5334         my $outfd = new IO::File ($tmpfn, "w") ||
5335             die "unable to write config for VM $vmid\n";
5336
5337         my $cookie = { netcount => 0 };
5338         while (defined (my $line = <$srcfd>)) {
5339             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
5340         }
5341
5342         $srcfd->close();
5343         $outfd->close();
5344     };
5345     my $err = $@;
5346
5347     if ($err) {
5348
5349         unlink $tmpfn;
5350
5351         tar_restore_cleanup($storecfg, "$tmpdir/qmrestore.stat") if !$opts->{info};
5352
5353         die $err;
5354     }
5355
5356     rmtree $tmpdir;
5357
5358     rename $tmpfn, $conffile ||
5359         die "unable to commit configuration file '$conffile'\n";
5360
5361     PVE::Cluster::cfs_update(); # make sure we read new file
5362
5363     eval { rescan($vmid, 1); };
5364     warn $@ if $@;
5365 };
5366
5367
5368 # Internal snapshots
5369
5370 # NOTE: Snapshot create/delete involves several non-atomic
5371 # action, and can take a long time.
5372 # So we try to avoid locking the file and use 'lock' variable
5373 # inside the config file instead.
5374
5375 my $snapshot_copy_config = sub {
5376     my ($source, $dest) = @_;
5377
5378     foreach my $k (keys %$source) {
5379         next if $k eq 'snapshots';
5380         next if $k eq 'snapstate';
5381         next if $k eq 'snaptime';
5382         next if $k eq 'vmstate';
5383         next if $k eq 'lock';
5384         next if $k eq 'digest';
5385         next if $k eq 'description';
5386         next if $k =~ m/^unused\d+$/;
5387
5388         $dest->{$k} = $source->{$k};
5389     }
5390 };
5391
5392 my $snapshot_apply_config = sub {
5393     my ($conf, $snap) = @_;
5394
5395     # copy snapshot list
5396     my $newconf = {
5397         snapshots => $conf->{snapshots},
5398     };
5399
5400     # keep description and list of unused disks
5401     foreach my $k (keys %$conf) {
5402         next if !($k =~ m/^unused\d+$/ || $k eq 'description');
5403         $newconf->{$k} = $conf->{$k};
5404     }
5405
5406     &$snapshot_copy_config($snap, $newconf);
5407
5408     return $newconf;
5409 };
5410
5411 sub foreach_writable_storage {
5412     my ($conf, $func) = @_;
5413
5414     my $sidhash = {};
5415
5416     foreach my $ds (keys %$conf) {
5417         next if !valid_drivename($ds);
5418
5419         my $drive = parse_drive($ds, $conf->{$ds});
5420         next if !$drive;
5421         next if drive_is_cdrom($drive);
5422
5423         my $volid = $drive->{file};
5424
5425         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
5426         $sidhash->{$sid} = $sid if $sid;
5427     }
5428
5429     foreach my $sid (sort keys %$sidhash) {
5430         &$func($sid);
5431     }
5432 }
5433
5434 my $alloc_vmstate_volid = sub {
5435     my ($storecfg, $vmid, $conf, $snapname) = @_;
5436
5437     # Note: we try to be smart when selecting a $target storage
5438
5439     my $target;
5440
5441     # search shared storage first
5442     foreach_writable_storage($conf, sub {
5443         my ($sid) = @_;
5444         my $scfg = PVE::Storage::storage_config($storecfg, $sid);
5445         return if !$scfg->{shared};
5446
5447         $target = $sid if !$target || $scfg->{path}; # prefer file based storage
5448     });
5449
5450     if (!$target) {
5451         # now search local storage
5452         foreach_writable_storage($conf, sub {
5453             my ($sid) = @_;
5454             my $scfg = PVE::Storage::storage_config($storecfg, $sid);
5455             return if $scfg->{shared};
5456
5457             $target = $sid if !$target || $scfg->{path}; # prefer file based storage;
5458         });
5459     }
5460
5461     $target = 'local' if !$target;
5462
5463     my $driver_state_size = 500; # assume 32MB is enough to safe all driver state;
5464     # we abort live save after $conf->{memory}, so we need at max twice that space
5465     my $size = $conf->{memory}*2 + $driver_state_size;
5466
5467     my $name = "vm-$vmid-state-$snapname";
5468     my $scfg = PVE::Storage::storage_config($storecfg, $target);
5469     $name .= ".raw" if $scfg->{path}; # add filename extension for file base storage
5470     my $volid = PVE::Storage::vdisk_alloc($storecfg, $target, $vmid, 'raw', $name, $size*1024);
5471
5472     return $volid;
5473 };
5474
5475 my $snapshot_prepare = sub {
5476     my ($vmid, $snapname, $save_vmstate, $comment) = @_;
5477
5478     my $snap;
5479
5480     my $updatefn =  sub {
5481
5482         my $conf = load_config($vmid);
5483
5484         die "you can't take a snapshot if it's a template\n"
5485             if is_template($conf);
5486
5487         check_lock($conf);
5488
5489         $conf->{lock} = 'snapshot';
5490
5491         die "snapshot name '$snapname' already used\n"
5492             if defined($conf->{snapshots}->{$snapname});
5493
5494         my $storecfg = PVE::Storage::config();
5495         die "snapshot feature is not available" if !has_feature('snapshot', $conf, $storecfg);
5496
5497         $snap = $conf->{snapshots}->{$snapname} = {};
5498
5499         if ($save_vmstate && check_running($vmid)) {
5500             $snap->{vmstate} = &$alloc_vmstate_volid($storecfg, $vmid, $conf, $snapname);
5501         }
5502
5503         &$snapshot_copy_config($conf, $snap);
5504
5505         $snap->{snapstate} = "prepare";
5506         $snap->{snaptime} = time();
5507         $snap->{description} = $comment if $comment;
5508
5509         # always overwrite machine if we save vmstate. This makes sure we
5510         # can restore it later using correct machine type
5511         $snap->{machine} = get_current_qemu_machine($vmid) if $snap->{vmstate};
5512
5513         update_config_nolock($vmid, $conf, 1);
5514     };
5515
5516     lock_config($vmid, $updatefn);
5517
5518     return $snap;
5519 };
5520
5521 my $snapshot_commit = sub {
5522     my ($vmid, $snapname) = @_;
5523
5524     my $updatefn = sub {
5525
5526         my $conf = load_config($vmid);
5527
5528         die "missing snapshot lock\n"
5529             if !($conf->{lock} && $conf->{lock} eq 'snapshot');
5530
5531         my $has_machine_config = defined($conf->{machine});
5532
5533         my $snap = $conf->{snapshots}->{$snapname};
5534
5535         die "snapshot '$snapname' does not exist\n" if !defined($snap);
5536
5537         die "wrong snapshot state\n"
5538             if !($snap->{snapstate} && $snap->{snapstate} eq "prepare");
5539
5540         delete $snap->{snapstate};
5541         delete $conf->{lock};
5542
5543         my $newconf = &$snapshot_apply_config($conf, $snap);
5544
5545         delete $newconf->{machine} if !$has_machine_config;
5546
5547         $newconf->{parent} = $snapname;
5548
5549         update_config_nolock($vmid, $newconf, 1);
5550     };
5551
5552     lock_config($vmid, $updatefn);
5553 };
5554
5555 sub snapshot_rollback {
5556     my ($vmid, $snapname) = @_;
5557
5558     my $prepare = 1;
5559
5560     my $storecfg = PVE::Storage::config();
5561
5562     my $conf = load_config($vmid);
5563
5564     my $get_snapshot_config = sub {
5565
5566         die "you can't rollback if vm is a template\n" if is_template($conf);
5567
5568         my $res = $conf->{snapshots}->{$snapname};
5569
5570         die "snapshot '$snapname' does not exist\n" if !defined($res);
5571
5572         return $res;
5573     };
5574
5575     my $snap = &$get_snapshot_config();
5576
5577     foreach_drive($snap, sub {
5578         my ($ds, $drive) = @_;
5579
5580         return if drive_is_cdrom($drive);
5581
5582         my $volid = $drive->{file};
5583
5584         PVE::Storage::volume_rollback_is_possible($storecfg, $volid, $snapname);
5585     });
5586
5587     my $updatefn = sub {
5588
5589         $conf = load_config($vmid);
5590
5591         $snap = &$get_snapshot_config();
5592
5593         die "unable to rollback to incomplete snapshot (snapstate = $snap->{snapstate})\n"
5594             if $snap->{snapstate};
5595
5596         if ($prepare) {
5597             check_lock($conf);
5598             vm_stop($storecfg, $vmid, undef, undef, 5, undef, undef);
5599         }
5600
5601         die "unable to rollback vm $vmid: vm is running\n"
5602             if check_running($vmid);
5603
5604         if ($prepare) {
5605             $conf->{lock} = 'rollback';
5606         } else {
5607             die "got wrong lock\n" if !($conf->{lock} && $conf->{lock} eq 'rollback');
5608             delete $conf->{lock};
5609         }
5610
5611         my $forcemachine;
5612
5613         if (!$prepare) {
5614             my $has_machine_config = defined($conf->{machine});
5615
5616             # copy snapshot config to current config
5617             $conf = &$snapshot_apply_config($conf, $snap);
5618             $conf->{parent} = $snapname;
5619
5620             # Note: old code did not store 'machine', so we try to be smart
5621             # and guess the snapshot was generated with kvm 1.4 (pc-i440fx-1.4).
5622             $forcemachine = $conf->{machine} || 'pc-i440fx-1.4';
5623             # we remove the 'machine' configuration if not explicitly specified
5624             # in the original config.
5625             delete $conf->{machine} if $snap->{vmstate} && !$has_machine_config;
5626         }
5627
5628         update_config_nolock($vmid, $conf, 1);
5629
5630         if (!$prepare && $snap->{vmstate}) {
5631             my $statefile = PVE::Storage::path($storecfg, $snap->{vmstate});
5632             vm_start($storecfg, $vmid, $statefile, undef, undef, undef, $forcemachine);
5633         }
5634     };
5635
5636     lock_config($vmid, $updatefn);
5637
5638     foreach_drive($snap, sub {
5639         my ($ds, $drive) = @_;
5640
5641         return if drive_is_cdrom($drive);
5642
5643         my $volid = $drive->{file};
5644         my $device = "drive-$ds";
5645
5646         PVE::Storage::volume_snapshot_rollback($storecfg, $volid, $snapname);
5647     });
5648
5649     $prepare = 0;
5650     lock_config($vmid, $updatefn);
5651 }
5652
5653 my $savevm_wait = sub {
5654     my ($vmid) = @_;
5655
5656     for(;;) {
5657         my $stat = vm_mon_cmd_nocheck($vmid, "query-savevm");
5658         if (!$stat->{status}) {
5659             die "savevm not active\n";
5660         } elsif ($stat->{status} eq 'active') {
5661             sleep(1);
5662             next;
5663         } elsif ($stat->{status} eq 'completed') {
5664             last;
5665         } else {
5666             die "query-savevm returned status '$stat->{status}'\n";
5667         }
5668     }
5669 };
5670
5671 sub snapshot_create {
5672     my ($vmid, $snapname, $save_vmstate, $comment) = @_;
5673
5674     my $snap = &$snapshot_prepare($vmid, $snapname, $save_vmstate, $comment);
5675
5676     $save_vmstate = 0 if !$snap->{vmstate}; # vm is not running
5677
5678     my $config = load_config($vmid);
5679
5680     my $running = check_running($vmid);
5681
5682     my $freezefs = $running && $config->{agent};
5683     $freezefs = 0 if $snap->{vmstate}; # not needed if we save RAM
5684
5685     my $drivehash = {};
5686
5687     if ($freezefs) {
5688         eval { vm_mon_cmd($vmid, "guest-fsfreeze-freeze"); };
5689         warn "guest-fsfreeze-freeze problems - $@" if $@;
5690     }
5691
5692     eval {
5693         # create internal snapshots of all drives
5694
5695         my $storecfg = PVE::Storage::config();
5696
5697         if ($running) {
5698             if ($snap->{vmstate}) {
5699                 my $path = PVE::Storage::path($storecfg, $snap->{vmstate});
5700                 vm_mon_cmd($vmid, "savevm-start", statefile => $path);
5701                 &$savevm_wait($vmid);
5702             } else {
5703                 vm_mon_cmd($vmid, "savevm-start");
5704             }
5705         };
5706
5707         foreach_drive($snap, sub {
5708             my ($ds, $drive) = @_;
5709
5710             return if drive_is_cdrom($drive);
5711
5712             my $volid = $drive->{file};
5713             my $device = "drive-$ds";
5714
5715             qemu_volume_snapshot($vmid, $device, $storecfg, $volid, $snapname);
5716             $drivehash->{$ds} = 1;
5717        });
5718     };
5719     my $err = $@;
5720
5721     if ($running) {
5722         eval { vm_mon_cmd($vmid, "savevm-end")  };
5723         warn $@ if $@;
5724
5725         if ($freezefs) {
5726             eval { vm_mon_cmd($vmid, "guest-fsfreeze-thaw"); };
5727             warn "guest-fsfreeze-thaw problems - $@" if $@;
5728         }
5729
5730         # savevm-end is async, we need to wait
5731         for (;;) {
5732             my $stat = vm_mon_cmd_nocheck($vmid, "query-savevm");
5733             if (!$stat->{bytes}) {
5734                 last;
5735             } else {
5736                 print "savevm not yet finished\n";
5737                 sleep(1);
5738                 next;
5739             }
5740         }
5741     }
5742
5743     if ($err) {
5744         warn "snapshot create failed: starting cleanup\n";
5745         eval { snapshot_delete($vmid, $snapname, 0, $drivehash); };
5746         warn $@ if $@;
5747         die $err;
5748     }
5749
5750     &$snapshot_commit($vmid, $snapname);
5751 }
5752
5753 # Note: $drivehash is only set when called from snapshot_create.
5754 sub snapshot_delete {
5755     my ($vmid, $snapname, $force, $drivehash) = @_;
5756
5757     my $prepare = 1;
5758
5759     my $snap;
5760     my $unused = [];
5761
5762     my $unlink_parent = sub {
5763         my ($confref, $new_parent) = @_;
5764
5765         if ($confref->{parent} && $confref->{parent} eq $snapname) {
5766             if ($new_parent) {
5767                 $confref->{parent} = $new_parent;
5768             } else {
5769                 delete $confref->{parent};
5770             }
5771         }
5772     };
5773
5774     my $updatefn =  sub {
5775         my ($remove_drive) = @_;
5776
5777         my $conf = load_config($vmid);
5778
5779         if (!$drivehash) {
5780             check_lock($conf);
5781             die "you can't delete a snapshot if vm is a template\n"
5782                 if is_template($conf);
5783         }
5784
5785         $snap = $conf->{snapshots}->{$snapname};
5786
5787         die "snapshot '$snapname' does not exist\n" if !defined($snap);
5788
5789         # remove parent refs
5790         if (!$prepare) {
5791             &$unlink_parent($conf, $snap->{parent});
5792             foreach my $sn (keys %{$conf->{snapshots}}) {
5793                 next if $sn eq $snapname;
5794                 &$unlink_parent($conf->{snapshots}->{$sn}, $snap->{parent});
5795             }
5796         }
5797
5798         if ($remove_drive) {
5799             if ($remove_drive eq 'vmstate') {
5800                 delete $snap->{$remove_drive};
5801             } else {
5802                 my $drive = parse_drive($remove_drive, $snap->{$remove_drive});
5803                 my $volid = $drive->{file};
5804                 delete $snap->{$remove_drive};
5805                 add_unused_volume($conf, $volid);
5806             }
5807         }
5808
5809         if ($prepare) {
5810             $snap->{snapstate} = 'delete';
5811         } else {
5812             delete $conf->{snapshots}->{$snapname};
5813             delete $conf->{lock} if $drivehash;
5814             foreach my $volid (@$unused) {
5815                 add_unused_volume($conf, $volid);
5816             }
5817         }
5818
5819         update_config_nolock($vmid, $conf, 1);
5820     };
5821
5822     lock_config($vmid, $updatefn);
5823
5824     # now remove vmstate file
5825
5826     my $storecfg = PVE::Storage::config();
5827
5828     if ($snap->{vmstate}) {
5829         eval {  PVE::Storage::vdisk_free($storecfg, $snap->{vmstate}); };
5830         if (my $err = $@) {
5831             die $err if !$force;
5832             warn $err;
5833         }
5834         # save changes (remove vmstate from snapshot)
5835         lock_config($vmid, $updatefn, 'vmstate') if !$force;
5836     };
5837
5838     # now remove all internal snapshots
5839     foreach_drive($snap, sub {
5840         my ($ds, $drive) = @_;
5841
5842         return if drive_is_cdrom($drive);
5843
5844         my $volid = $drive->{file};
5845         my $device = "drive-$ds";
5846
5847         if (!$drivehash || $drivehash->{$ds}) {
5848             eval { qemu_volume_snapshot_delete($vmid, $device, $storecfg, $volid, $snapname); };
5849             if (my $err = $@) {
5850                 die $err if !$force;
5851                 warn $err;
5852             }
5853         }
5854
5855         # save changes (remove drive fron snapshot)
5856         lock_config($vmid, $updatefn, $ds) if !$force;
5857         push @$unused, $volid;
5858     });
5859
5860     # now cleanup config
5861     $prepare = 0;
5862     lock_config($vmid, $updatefn);
5863 }
5864
5865 sub has_feature {
5866     my ($feature, $conf, $storecfg, $snapname, $running) = @_;
5867
5868     my $err;
5869     foreach_drive($conf, sub {
5870         my ($ds, $drive) = @_;
5871
5872         return if drive_is_cdrom($drive);
5873         my $volid = $drive->{file};
5874         $err = 1 if !PVE::Storage::volume_has_feature($storecfg, $feature, $volid, $snapname, $running);
5875     });
5876
5877     return $err ? 0 : 1;
5878 }
5879
5880 sub template_create {
5881     my ($vmid, $conf, $disk) = @_;
5882
5883     my $storecfg = PVE::Storage::config();
5884
5885     foreach_drive($conf, sub {
5886         my ($ds, $drive) = @_;
5887
5888         return if drive_is_cdrom($drive);
5889         return if $disk && $ds ne $disk;
5890
5891         my $volid = $drive->{file};
5892         return if !PVE::Storage::volume_has_feature($storecfg, 'template', $volid);
5893
5894         my $voliddst = PVE::Storage::vdisk_create_base($storecfg, $volid);
5895         $drive->{file} = $voliddst;
5896         $conf->{$ds} = print_drive($vmid, $drive);
5897         update_config_nolock($vmid, $conf, 1);
5898     });
5899 }
5900
5901 sub is_template {
5902     my ($conf) = @_;
5903
5904     return 1 if defined $conf->{template} && $conf->{template} == 1;
5905 }
5906
5907 sub qemu_img_convert {
5908     my ($src_volid, $dst_volid, $size, $snapname) = @_;
5909
5910     my $storecfg = PVE::Storage::config();
5911     my ($src_storeid, $src_volname) = PVE::Storage::parse_volume_id($src_volid, 1);
5912     my ($dst_storeid, $dst_volname) = PVE::Storage::parse_volume_id($dst_volid, 1);
5913
5914     if ($src_storeid && $dst_storeid) {
5915         my $src_scfg = PVE::Storage::storage_config($storecfg, $src_storeid);
5916         my $dst_scfg = PVE::Storage::storage_config($storecfg, $dst_storeid);
5917
5918         my $src_format = qemu_img_format($src_scfg, $src_volname);
5919         my $dst_format = qemu_img_format($dst_scfg, $dst_volname);
5920
5921         my $src_path = PVE::Storage::path($storecfg, $src_volid, $snapname);
5922         my $dst_path = PVE::Storage::path($storecfg, $dst_volid);
5923
5924         my $cmd = [];
5925         push @$cmd, '/usr/bin/qemu-img', 'convert', '-t', 'writeback', '-p', '-n';
5926         push @$cmd, '-s', $snapname if($snapname && $src_format eq "qcow2");
5927         push @$cmd, '-f', $src_format, '-O', $dst_format, $src_path, $dst_path;
5928
5929         my $parser = sub {
5930             my $line = shift;
5931             if($line =~ m/\((\S+)\/100\%\)/){
5932                 my $percent = $1;
5933                 my $transferred = int($size * $percent / 100);
5934                 my $remaining = $size - $transferred;
5935
5936                 print "transferred: $transferred bytes remaining: $remaining bytes total: $size bytes progression: $percent %\n";
5937             }
5938
5939         };
5940
5941         eval  { run_command($cmd, timeout => undef, outfunc => $parser); };
5942         my $err = $@;
5943         die "copy failed: $err" if $err;
5944     }
5945 }
5946
5947 sub qemu_img_format {
5948     my ($scfg, $volname) = @_;
5949
5950     if ($scfg->{path} && $volname =~ m/\.(raw|qcow2|qed|vmdk)$/) {
5951         return $1;
5952     } elsif ($scfg->{type} eq 'iscsi') {
5953         return "host_device";
5954     } else {
5955         return "raw";
5956     }
5957 }
5958
5959 sub qemu_drive_mirror {
5960     my ($vmid, $drive, $dst_volid, $vmiddst) = @_;
5961
5962     my $count = 0;
5963     my $old_len = 0;
5964     my $frozen = undef;
5965     my $maxwait = 120;
5966
5967     my $storecfg = PVE::Storage::config();
5968     my ($dst_storeid, $dst_volname) = PVE::Storage::parse_volume_id($dst_volid);
5969
5970     my $dst_scfg = PVE::Storage::storage_config($storecfg, $dst_storeid);
5971
5972     my $format;
5973     if ($dst_volname =~ m/\.(raw|qcow2)$/){
5974         $format = $1;
5975     }
5976
5977     my $dst_path = PVE::Storage::path($storecfg, $dst_volid);
5978
5979     my $opts = { timeout => 10, device => "drive-$drive", mode => "existing", sync => "full", target => $dst_path };
5980     $opts->{format} = $format if $format;
5981
5982     #fixme : sometime drive-mirror timeout, but works fine after.
5983     # (I have see the problem with big volume > 200GB), so we need to eval
5984     eval { vm_mon_cmd($vmid, "drive-mirror", %$opts); };
5985     # ignore errors here
5986
5987     eval {
5988         while (1) {
5989             my $stats = vm_mon_cmd($vmid, "query-block-jobs");
5990             my $stat = @$stats[0];
5991             die "mirroring job seem to have die. Maybe do you have bad sectors?" if !$stat;
5992             die "error job is not mirroring" if $stat->{type} ne "mirror";
5993
5994             my $busy = $stat->{busy};
5995
5996             if (my $total = $stat->{len}) {
5997                 my $transferred = $stat->{offset} || 0;
5998                 my $remaining = $total - $transferred;
5999                 my $percent = sprintf "%.2f", ($transferred * 100 / $total);
6000
6001                 print "transferred: $transferred bytes remaining: $remaining bytes total: $total bytes progression: $percent % busy: $busy\n";
6002             }
6003
6004             if ($stat->{len} == $stat->{offset}) {
6005                 if ($busy eq 'false') {
6006
6007                     last if $vmiddst != $vmid;
6008
6009                     # try to switch the disk if source and destination are on the same guest
6010                     eval { vm_mon_cmd($vmid, "block-job-complete", device => "drive-$drive") };
6011                     last if !$@;
6012                     die $@ if $@ !~ m/cannot be completed/;
6013                 }
6014
6015                 if ($count > $maxwait) {
6016                     # if too much writes to disk occurs at the end of migration
6017                     #the disk needs to be freezed to be able to complete the migration
6018                     vm_suspend($vmid,1);
6019                     $frozen = 1;
6020                 }
6021                 $count ++
6022             }
6023             $old_len = $stat->{offset};
6024             sleep 1;
6025         }
6026
6027         vm_resume($vmid, 1) if $frozen;
6028
6029     };
6030     my $err = $@;
6031
6032     my $cancel_job = sub {
6033         vm_mon_cmd($vmid, "block-job-cancel", device => "drive-$drive");
6034         while (1) {
6035             my $stats = vm_mon_cmd($vmid, "query-block-jobs");
6036             my $stat = @$stats[0];
6037             last if !$stat;
6038             sleep 1;
6039         }
6040     };
6041
6042     if ($err) {
6043         eval { &$cancel_job(); };
6044         die "mirroring error: $err";
6045     }
6046
6047     if ($vmiddst != $vmid) {
6048         # if we clone a disk for a new target vm, we don't switch the disk
6049         &$cancel_job(); # so we call block-job-cancel
6050     }
6051 }
6052
6053 sub clone_disk {
6054     my ($storecfg, $vmid, $running, $drivename, $drive, $snapname,
6055         $newvmid, $storage, $format, $full, $newvollist) = @_;
6056
6057     my $newvolid;
6058
6059     if (!$full) {
6060         print "create linked clone of drive $drivename ($drive->{file})\n";
6061         $newvolid = PVE::Storage::vdisk_clone($storecfg,  $drive->{file}, $newvmid, $snapname);
6062         push @$newvollist, $newvolid;
6063     } else {
6064         my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file});
6065         $storeid = $storage if $storage;
6066
6067         my ($defFormat, $validFormats) = PVE::Storage::storage_default_format($storecfg, $storeid);
6068         if (!$format) {
6069             $format = $drive->{format} || $defFormat;
6070         }
6071
6072         # test if requested format is supported - else use default
6073         my $supported = grep { $_ eq $format } @$validFormats;
6074         $format = $defFormat if !$supported;
6075
6076         my ($size) = PVE::Storage::volume_size_info($storecfg, $drive->{file}, 3);
6077
6078         print "create full clone of drive $drivename ($drive->{file})\n";
6079         $newvolid = PVE::Storage::vdisk_alloc($storecfg, $storeid, $newvmid, $format, undef, ($size/1024));
6080         push @$newvollist, $newvolid;
6081
6082         if (!$running || $snapname) {
6083             qemu_img_convert($drive->{file}, $newvolid, $size, $snapname);
6084         } else {
6085             qemu_drive_mirror($vmid, $drivename, $newvolid, $newvmid);
6086         }
6087     }
6088
6089     my ($size) = PVE::Storage::volume_size_info($storecfg, $newvolid, 3);
6090
6091     my $disk = $drive;
6092     $disk->{format} = undef;
6093     $disk->{file} = $newvolid;
6094     $disk->{size} = $size;
6095
6096     return $disk;
6097 }
6098
6099 # this only works if VM is running
6100 sub get_current_qemu_machine {
6101     my ($vmid) = @_;
6102
6103     my $cmd = { execute => 'query-machines', arguments => {} };
6104     my $res = vm_qmp_command($vmid, $cmd);
6105
6106     my ($current, $default);
6107     foreach my $e (@$res) {
6108         $default = $e->{name} if $e->{'is-default'};
6109         $current = $e->{name} if $e->{'is-current'};
6110     }
6111
6112     # fallback to the default machine if current is not supported by qemu
6113     return $current || $default || 'pc';
6114 }
6115
6116 sub lspci {
6117
6118     my $devices = {};
6119
6120     dir_glob_foreach("$pcisysfs/devices", '[a-f0-9]{4}:([a-f0-9]{2}:[a-f0-9]{2})\.([0-9])', sub {
6121             my (undef, $id, $function) = @_;
6122             my $res = { id => $id, function => $function};
6123             push @{$devices->{$id}}, $res;
6124     });
6125
6126     return $devices;
6127 }
6128
6129 1;