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 => 'boolean',
 176         description => "Allow hotplug for disk and network device",
 177         default => 0,
 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     maxcpus => {
 310         optional => 1,
 311         type => 'integer',
 312         description => "Maximum cpus for hotplug.",
 313         minimum => 1,
 314         default => 1,
 315     },
 316     acpi => {
 317         optional => 1,
 318         type => 'boolean',
 319         description => "Enable/disable ACPI.",
 320         default => 1,
 321     },
 322     agent => {
 323         optional => 1,
 324         type => 'boolean',
 325         description => "Enable/disable Qemu GuestAgent.",
 326         default => 0,
 327     },
 328     kvm => {
 329         optional => 1,
 330         type => 'boolean',
 331         description => "Enable/disable KVM hardware virtualization.",
 332         default => 1,
 333     },
 334     tdf => {
 335         optional => 1,
 336         type => 'boolean',
 337         description => "Enable/disable time drift fix.",
 338         default => 0,
 339     },
 340     localtime => {
 341         optional => 1,
 342         type => 'boolean',
 343         description => "Set the real time clock to local time. This is enabled by default if ostype indicates a Microsoft OS.",
 344     },
 345     freeze => {
 346         optional => 1,
 347         type => 'boolean',
 348         description => "Freeze CPU at startup (use 'c' monitor command to start execution).",
 349     },
 350     vga => {
 351         optional => 1,
 352         type => 'string',
 353         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.",
 354         enum => [qw(std cirrus vmware qxl serial0 serial1 serial2 serial3 qxl2 qxl3 qxl4)],
 355     },
 356     watchdog => {
 357         optional => 1,
 358         type => 'string', format => 'pve-qm-watchdog',
 359         typetext => '[[model=]i6300esb|ib700] [,[action=]reset|shutdown|poweroff|pause|debug|none]',
 360         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)",
 361     },
 362     startdate => {
 363         optional => 1,
 364         type => 'string',
 365         typetext => "(now | YYYY-MM-DD | YYYY-MM-DDTHH:MM:SS)",
 366         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'.",
 367         pattern => '(now|\d{4}-\d{1,2}-\d{1,2}(T\d{1,2}:\d{1,2}:\d{1,2})?)',
 368         default => 'now',
 369     },
 370     startup => {
 371         optional => 1,
 372         type => 'string', format => 'pve-qm-startup',
 373         typetext => '[[order=]\d+] [,up=\d+] [,down=\d+] ',
 374         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.",
 375     },
 376     template => {
 377         optional => 1,
 378         type => 'boolean',
 379         description => "Enable/disable Template.",
 380         default => 0,
 381     },
 382     args => {
 383         optional => 1,
 384         type => 'string',
 385         description => <<EODESCR,
 386 Note: this option is for experts only. It allows you to pass arbitrary arguments to kvm, for example:
 387
 388 args: -no-reboot -no-hpet
 389 EODESCR
 390     },
 391     tablet => {
 392         optional => 1,
 393         type => 'boolean',
 394         default => 1,
 395         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).",
 396     },
 397     migrate_speed => {
 398         optional => 1,
 399         type => 'integer',
 400         description => "Set maximum speed (in MB/s) for migrations. Value 0 is no limit.",
 401         minimum => 0,
 402         default => 0,
 403     },
 404     migrate_downtime => {
 405         optional => 1,
 406         type => 'number',
 407         description => "Set maximum tolerated downtime (in seconds) for migrations.",
 408         minimum => 0,
 409         default => 0.1,
 410     },
 411     cdrom => {
 412         optional => 1,
 413         type => 'string', format => 'pve-qm-drive',
 414         typetext => 'volume',
 415         description => "This is an alias for option -ide2",
 416     },
 417     cpu => {
 418         optional => 1,
 419         description => "Emulated CPU type.",
 420         type => 'string',
 421         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) ],
 422         default => 'kvm64',
 423     },
 424     parent => get_standard_option('pve-snapshot-name', {
 425         optional => 1,
 426         description => "Parent snapshot name. This is used internally, and should not be modified.",
 427     }),
 428     snaptime => {
 429         optional => 1,
 430         description => "Timestamp for snapshots.",
 431         type => 'integer',
 432         minimum => 0,
 433     },
 434     vmstate => {
 435         optional => 1,
 436         type => 'string', format => 'pve-volume-id',
 437         description => "Reference to a volume which stores the VM state. This is used internally for snapshots.",
 438     },
 439     machine => {
 440         description => "Specific the Qemu machine type.",
 441         type => 'string',
 442         pattern => '(pc|pc(-i440fx)?-\d+\.\d+|q35|pc-q35-\d+\.\d+)',
 443         maxLength => 40,
 444         optional => 1,
 445     },
 446     smbios1 => {
 447         description => "Specify SMBIOS type 1 fields.",
 448         type => 'string', format => 'pve-qm-smbios1',
 449         typetext => "[manufacturer=str][,product=str][,version=str][,serial=str] [,uuid=uuid][,sku=str][,family=str]",
 450         maxLength => 256,
 451         optional => 1,
 452     },
 453 };
 454
 455 # what about other qemu settings ?
 456 #cpu => 'string',
 457 #machine => 'string',
 458 #fda => 'file',
 459 #fdb => 'file',
 460 #mtdblock => 'file',
 461 #sd => 'file',
 462 #pflash => 'file',
 463 #snapshot => 'bool',
 464 #bootp => 'file',
 465 ##tftp => 'dir',
 466 ##smb => 'dir',
 467 #kernel => 'file',
 468 #append => 'string',
 469 #initrd => 'file',
 470 ##soundhw => 'string',
 471
 472 while (my ($k, $v) = each %$confdesc) {
 473     PVE::JSONSchema::register_standard_option("pve-qm-$k", $v);
 474 }
 475
 476 my $MAX_IDE_DISKS = 4;
 477 my $MAX_SCSI_DISKS = 14;
 478 my $MAX_VIRTIO_DISKS = 16;
 479 my $MAX_SATA_DISKS = 6;
 480 my $MAX_USB_DEVICES = 5;
 481 my $MAX_NETS = 32;
 482 my $MAX_UNUSED_DISKS = 8;
 483 my $MAX_HOSTPCI_DEVICES = 4;
 484 my $MAX_SERIAL_PORTS = 4;
 485 my $MAX_PARALLEL_PORTS = 3;
 486
 487 my $nic_model_list = ['rtl8139', 'ne2k_pci', 'e1000',  'pcnet',  'virtio',
 488                       'ne2k_isa', 'i82551', 'i82557b', 'i82559er', 'vmxnet3'];
 489 my $nic_model_list_txt = join(' ', sort @$nic_model_list);
 490
 491 my $netdesc = {
 492     optional => 1,
 493     type => 'string', format => 'pve-qm-net',
 494     typetext => "MODEL=XX:XX:XX:XX:XX:XX [,bridge=<dev>][,queues=<nbqueues>][,rate=<mbps>][,tag=<vlanid>][,firewall=0|1]",
 495     description => <<EODESCR,
 496 Specify network devices.
 497
 498 MODEL is one of: $nic_model_list_txt
 499
 500 XX:XX:XX:XX:XX:XX should be an unique MAC address. This is
 501 automatically generated if not specified.
 502
 503 The bridge parameter can be used to automatically add the interface to a bridge device. The Proxmox VE standard bridge is called 'vmbr0'.
 504
 505 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'.
 506
 507 If you specify no bridge, we create a kvm 'user' (NATed) network device, which provides DHCP and DNS services. The following addresses are used:
 508
 509 10.0.2.2   Gateway
 510 10.0.2.3   DNS Server
 511 10.0.2.4   SMB Server
 512
 513 The DHCP server assign addresses to the guest starting from 10.0.2.15.
 514
 515 EODESCR
 516 };
 517 PVE::JSONSchema::register_standard_option("pve-qm-net", $netdesc);
 518
 519 for (my $i = 0; $i < $MAX_NETS; $i++)  {
 520     $confdesc->{"net$i"} = $netdesc;
 521 }
 522
 523 my $drivename_hash;
 524
 525 my $idedesc = {
 526     optional => 1,
 527     type => 'string', format => 'pve-qm-drive',
 528     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads] [,discard=ignore|on]',
 529     description => "Use volume as IDE hard disk or CD-ROM (n is 0 to " .($MAX_IDE_DISKS -1) . ").",
 530 };
 531 PVE::JSONSchema::register_standard_option("pve-qm-ide", $idedesc);
 532
 533 my $scsidesc = {
 534     optional => 1,
 535     type => 'string', format => 'pve-qm-drive',
 536     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads] [,discard=ignore|on]',
 537     description => "Use volume as SCSI hard disk or CD-ROM (n is 0 to " . ($MAX_SCSI_DISKS - 1) . ").",
 538 };
 539 PVE::JSONSchema::register_standard_option("pve-qm-scsi", $scsidesc);
 540
 541 my $satadesc = {
 542     optional => 1,
 543     type => 'string', format => 'pve-qm-drive',
 544     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads]  [,discard=ignore|on]',
 545     description => "Use volume as SATA hard disk or CD-ROM (n is 0 to " . ($MAX_SATA_DISKS - 1). ").",
 546 };
 547 PVE::JSONSchema::register_standard_option("pve-qm-sata", $satadesc);
 548
 549 my $virtiodesc = {
 550     optional => 1,
 551     type => 'string', format => 'pve-qm-drive',
 552     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads]  [,discard=ignore|on]',
 553     description => "Use volume as VIRTIO hard disk (n is 0 to " . ($MAX_VIRTIO_DISKS - 1) . ").",
 554 };
 555 PVE::JSONSchema::register_standard_option("pve-qm-virtio", $virtiodesc);
 556
 557 my $usbdesc = {
 558     optional => 1,
 559     type => 'string', format => 'pve-qm-usb-device',
 560     typetext => 'host=HOSTUSBDEVICE|spice',
 561     description => <<EODESCR,
 562 Configure an USB device (n is 0 to 4). This can be used to
 563 pass-through usb devices to the guest. HOSTUSBDEVICE syntax is:
 564
 565 'bus-port(.port)*' (decimal numbers) or
 566 'vendor_id:product_id' (hexadeciaml numbers)
 567
 568 You can use the 'lsusb -t' command to list existing usb devices.
 569
 570 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 571
 572 The value 'spice' can be used to add a usb redirection devices for spice.
 573
 574 EODESCR
 575 };
 576 PVE::JSONSchema::register_standard_option("pve-qm-usb", $usbdesc);
 577
 578 my $hostpcidesc = {
 579         optional => 1,
 580         type => 'string', format => 'pve-qm-hostpci',
 581         typetext => "[host=]HOSTPCIDEVICE [,driver=kvm|vfio] [,rombar=on|off] [,pcie=0|1] [,x-vga=on|off]",
 582         description => <<EODESCR,
 583 Map host pci devices. HOSTPCIDEVICE syntax is:
 584
 585 'bus:dev.func' (hexadecimal numbers)
 586
 587 You can us the 'lspci' command to list existing pci devices.
 588
 589 The 'rombar' option determines whether or not the device's ROM will be visible in the guest's memory map (default is 'on').
 590
 591 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 592
 593 Experimental: user reported problems with this option.
 594 EODESCR
 595 };
 596 PVE::JSONSchema::register_standard_option("pve-qm-hostpci", $hostpcidesc);
 597
 598 my $serialdesc = {
 599         optional => 1,
 600         type => 'string',
 601         pattern => '(/dev/ttyS\d+|socket)',
 602         description =>  <<EODESCR,
 603 Create a serial device inside the VM (n is 0 to 3), and pass through a host serial device, or create a unix socket on the host side (use 'qm terminal' to open a terminal connection).
 604
 605 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 606
 607 Experimental: user reported problems with this option.
 608 EODESCR
 609 };
 610
 611 my $paralleldesc= {
 612         optional => 1,
 613         type => 'string',
 614         pattern => '/dev/parport\d+|/dev/usb/lp\d+',
 615         description =>  <<EODESCR,
 616 Map host parallel devices (n is 0 to 2).
 617
 618 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 619
 620 Experimental: user reported problems with this option.
 621 EODESCR
 622 };
 623
 624 for (my $i = 0; $i < $MAX_PARALLEL_PORTS; $i++)  {
 625     $confdesc->{"parallel$i"} = $paralleldesc;
 626 }
 627
 628 for (my $i = 0; $i < $MAX_SERIAL_PORTS; $i++)  {
 629     $confdesc->{"serial$i"} = $serialdesc;
 630 }
 631
 632 for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
 633     $confdesc->{"hostpci$i"} = $hostpcidesc;
 634 }
 635
 636 for (my $i = 0; $i < $MAX_IDE_DISKS; $i++)  {
 637     $drivename_hash->{"ide$i"} = 1;
 638     $confdesc->{"ide$i"} = $idedesc;
 639 }
 640
 641 for (my $i = 0; $i < $MAX_SATA_DISKS; $i++)  {
 642     $drivename_hash->{"sata$i"} = 1;
 643     $confdesc->{"sata$i"} = $satadesc;
 644 }
 645
 646 for (my $i = 0; $i < $MAX_SCSI_DISKS; $i++)  {
 647     $drivename_hash->{"scsi$i"} = 1;
 648     $confdesc->{"scsi$i"} = $scsidesc ;
 649 }
 650
 651 for (my $i = 0; $i < $MAX_VIRTIO_DISKS; $i++)  {
 652     $drivename_hash->{"virtio$i"} = 1;
 653     $confdesc->{"virtio$i"} = $virtiodesc;
 654 }
 655
 656 for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
 657     $confdesc->{"usb$i"} = $usbdesc;
 658 }
 659
 660 my $unuseddesc = {
 661     optional => 1,
 662     type => 'string', format => 'pve-volume-id',
 663     description => "Reference to unused volumes.",
 664 };
 665
 666 for (my $i = 0; $i < $MAX_UNUSED_DISKS; $i++)  {
 667     $confdesc->{"unused$i"} = $unuseddesc;
 668 }
 669
 670 my $kvm_api_version = 0;
 671
 672 sub kvm_version {
 673
 674     return $kvm_api_version if $kvm_api_version;
 675
 676     my $fh = IO::File->new("</dev/kvm") ||
 677         return 0;
 678
 679     if (my $v = $fh->ioctl(KVM_GET_API_VERSION(), 0)) {
 680         $kvm_api_version = $v;
 681     }
 682
 683     $fh->close();
 684
 685     return  $kvm_api_version;
 686 }
 687
 688 my $kvm_user_version;
 689
 690 sub kvm_user_version {
 691
 692     return $kvm_user_version if $kvm_user_version;
 693
 694     $kvm_user_version = 'unknown';
 695
 696     my $tmp = `kvm -help 2>/dev/null`;
 697
 698     if ($tmp =~ m/^QEMU( PC)? emulator version (\d+\.\d+(\.\d+)?)[,\s]/) {
 699         $kvm_user_version = $2;
 700     }
 701
 702     return $kvm_user_version;
 703
 704 }
 705
 706 my $kernel_has_vhost_net = -c '/dev/vhost-net';
 707
 708 sub disknames {
 709     # order is important - used to autoselect boot disk
 710     return ((map { "ide$_" } (0 .. ($MAX_IDE_DISKS - 1))),
 711             (map { "scsi$_" } (0 .. ($MAX_SCSI_DISKS - 1))),
 712             (map { "virtio$_" } (0 .. ($MAX_VIRTIO_DISKS - 1))),
 713             (map { "sata$_" } (0 .. ($MAX_SATA_DISKS - 1))));
 714 }
 715
 716 sub valid_drivename {
 717     my $dev = shift;
 718
 719     return defined($drivename_hash->{$dev});
 720 }
 721
 722 sub option_exists {
 723     my $key = shift;
 724     return defined($confdesc->{$key});
 725 }
 726
 727 sub nic_models {
 728     return $nic_model_list;
 729 }
 730
 731 sub os_list_description {
 732
 733     return {
 734         other => 'Other',
 735         wxp => 'Windows XP',
 736         w2k => 'Windows 2000',
 737         w2k3 =>, 'Windows 2003',
 738         w2k8 => 'Windows 2008',
 739         wvista => 'Windows Vista',
 740         win7 => 'Windows 7',
 741         win8 => 'Windows 8/2012',
 742         l24 => 'Linux 2.4',
 743         l26 => 'Linux 2.6',
 744     };
 745 }
 746
 747 my $cdrom_path;
 748
 749 sub get_cdrom_path {
 750
 751     return  $cdrom_path if $cdrom_path;
 752
 753     return $cdrom_path = "/dev/cdrom" if -l "/dev/cdrom";
 754     return $cdrom_path = "/dev/cdrom1" if -l "/dev/cdrom1";
 755     return $cdrom_path = "/dev/cdrom2" if -l "/dev/cdrom2";
 756 }
 757
 758 sub get_iso_path {
 759     my ($storecfg, $vmid, $cdrom) = @_;
 760
 761     if ($cdrom eq 'cdrom') {
 762         return get_cdrom_path();
 763     } elsif ($cdrom eq 'none') {
 764         return '';
 765     } elsif ($cdrom =~ m|^/|) {
 766         return $cdrom;
 767     } else {
 768         return PVE::Storage::path($storecfg, $cdrom);
 769     }
 770 }
 771
 772 # try to convert old style file names to volume IDs
 773 sub filename_to_volume_id {
 774     my ($vmid, $file, $media) = @_;
 775
 776     if (!($file eq 'none' || $file eq 'cdrom' ||
 777           $file =~ m|^/dev/.+| || $file =~ m/^([^:]+):(.+)$/)) {
 778
 779         return undef if $file =~ m|/|;
 780
 781         if ($media && $media eq 'cdrom') {
 782             $file = "local:iso/$file";
 783         } else {
 784             $file = "local:$vmid/$file";
 785         }
 786     }
 787
 788     return $file;
 789 }
 790
 791 sub verify_media_type {
 792     my ($opt, $vtype, $media) = @_;
 793
 794     return if !$media;
 795
 796     my $etype;
 797     if ($media eq 'disk') {
 798         $etype = 'images';
 799     } elsif ($media eq 'cdrom') {
 800         $etype = 'iso';
 801     } else {
 802         die "internal error";
 803     }
 804
 805     return if ($vtype eq $etype);
 806
 807     raise_param_exc({ $opt => "unexpected media type ($vtype != $etype)" });
 808 }
 809
 810 sub cleanup_drive_path {
 811     my ($opt, $storecfg, $drive) = @_;
 812
 813     # try to convert filesystem paths to volume IDs
 814
 815     if (($drive->{file} !~ m/^(cdrom|none)$/) &&
 816         ($drive->{file} !~ m|^/dev/.+|) &&
 817         ($drive->{file} !~ m/^([^:]+):(.+)$/) &&
 818         ($drive->{file} !~ m/^\d+$/)) {
 819         my ($vtype, $volid) = PVE::Storage::path_to_volume_id($storecfg, $drive->{file});
 820         raise_param_exc({ $opt => "unable to associate path '$drive->{file}' to any storage"}) if !$vtype;
 821         $drive->{media} = 'cdrom' if !$drive->{media} && $vtype eq 'iso';
 822         verify_media_type($opt, $vtype, $drive->{media});
 823         $drive->{file} = $volid;
 824     }
 825
 826     $drive->{media} = 'cdrom' if !$drive->{media} && $drive->{file} =~ m/^(cdrom|none)$/;
 827 }
 828
 829 sub create_conf_nolock {
 830     my ($vmid, $settings) = @_;
 831
 832     my $filename = config_file($vmid);
 833
 834     die "configuration file '$filename' already exists\n" if -f $filename;
 835
 836     my $defaults = load_defaults();
 837
 838     $settings->{name} = "vm$vmid" if !$settings->{name};
 839     $settings->{memory} = $defaults->{memory} if !$settings->{memory};
 840
 841     my $data = '';
 842     foreach my $opt (keys %$settings) {
 843         next if !$confdesc->{$opt};
 844
 845         my $value = $settings->{$opt};
 846         next if !$value;
 847
 848         $data .= "$opt: $value\n";
 849     }
 850
 851     PVE::Tools::file_set_contents($filename, $data);
 852 }
 853
 854 my $parse_size = sub {
 855     my ($value) = @_;
 856
 857     return undef if $value !~ m/^(\d+(\.\d+)?)([KMG])?$/;
 858     my ($size, $unit) = ($1, $3);
 859     if ($unit) {
 860         if ($unit eq 'K') {
 861             $size = $size * 1024;
 862         } elsif ($unit eq 'M') {
 863             $size = $size * 1024 * 1024;
 864         } elsif ($unit eq 'G') {
 865             $size = $size * 1024 * 1024 * 1024;
 866         }
 867     }
 868     return int($size);
 869 };
 870
 871 my $format_size = sub {
 872     my ($size) = @_;
 873
 874     $size = int($size);
 875
 876     my $kb = int($size/1024);
 877     return $size if $kb*1024 != $size;
 878
 879     my $mb = int($kb/1024);
 880     return "${kb}K" if $mb*1024 != $kb;
 881
 882     my $gb = int($mb/1024);
 883     return "${mb}M" if $gb*1024 != $mb;
 884
 885     return "${gb}G";
 886 };
 887
 888 # ideX = [volume=]volume-id[,media=d][,cyls=c,heads=h,secs=s[,trans=t]]
 889 #        [,snapshot=on|off][,cache=on|off][,format=f][,backup=yes|no]
 890 #        [,rerror=ignore|report|stop][,werror=enospc|ignore|report|stop]
 891 #        [,aio=native|threads][,discard=ignore|on]
 892
 893 sub parse_drive {
 894     my ($key, $data) = @_;
 895
 896     my $res = {};
 897
 898     # $key may be undefined - used to verify JSON parameters
 899     if (!defined($key)) {
 900         $res->{interface} = 'unknown'; # should not harm when used to verify parameters
 901         $res->{index} = 0;
 902     } elsif ($key =~ m/^([^\d]+)(\d+)$/) {
 903         $res->{interface} = $1;
 904         $res->{index} = $2;
 905     } else {
 906         return undef;
 907     }
 908
 909     foreach my $p (split (/,/, $data)) {
 910         next if $p =~ m/^\s*$/;
 911
 912         if ($p =~ m/^(file|volume|cyls|heads|secs|trans|media|snapshot|cache|format|rerror|werror|backup|aio|bps|mbps|mbps_max|bps_rd|mbps_rd|mbps_rd_max|bps_wr|mbps_wr|mbps_wr_max|iops|iops_max|iops_rd|iops_rd_max|iops_wr|iops_wr_max|size|discard)=(.+)$/) {
 913             my ($k, $v) = ($1, $2);
 914
 915             $k = 'file' if $k eq 'volume';
 916
 917             return undef if defined $res->{$k};
 918
 919             if ($k eq 'bps' || $k eq 'bps_rd' || $k eq 'bps_wr') {
 920                 return undef if !$v || $v !~ m/^\d+/;
 921                 $k = "m$k";
 922                 $v = sprintf("%.3f", $v / (1024*1024));
 923             }
 924             $res->{$k} = $v;
 925         } else {
 926             if (!$res->{file} && $p !~ m/=/) {
 927                 $res->{file} = $p;
 928             } else {
 929                 return undef;
 930             }
 931         }
 932     }
 933
 934     return undef if !$res->{file};
 935
 936     if($res->{file} =~ m/\.(raw|cow|qcow|qcow2|vmdk|cloop)$/){
 937         $res->{format} = $1;
 938     }
 939
 940     return undef if $res->{cache} &&
 941         $res->{cache} !~ m/^(off|none|writethrough|writeback|unsafe|directsync)$/;
 942     return undef if $res->{snapshot} && $res->{snapshot} !~ m/^(on|off)$/;
 943     return undef if $res->{cyls} && $res->{cyls} !~ m/^\d+$/;
 944     return undef if $res->{heads} && $res->{heads} !~ m/^\d+$/;
 945     return undef if $res->{secs} && $res->{secs} !~ m/^\d+$/;
 946     return undef if $res->{media} && $res->{media} !~ m/^(disk|cdrom)$/;
 947     return undef if $res->{trans} && $res->{trans} !~ m/^(none|lba|auto)$/;
 948     return undef if $res->{format} && $res->{format} !~ m/^(raw|cow|qcow|qcow2|vmdk|cloop)$/;
 949     return undef if $res->{rerror} && $res->{rerror} !~ m/^(ignore|report|stop)$/;
 950     return undef if $res->{werror} && $res->{werror} !~ m/^(enospc|ignore|report|stop)$/;
 951     return undef if $res->{backup} && $res->{backup} !~ m/^(yes|no)$/;
 952     return undef if $res->{aio} && $res->{aio} !~ m/^(native|threads)$/;
 953     return undef if $res->{discard} && $res->{discard} !~ m/^(ignore|on)$/;
 954
 955     return undef if $res->{mbps_rd} && $res->{mbps};
 956     return undef if $res->{mbps_wr} && $res->{mbps};
 957
 958     return undef if $res->{mbps} && $res->{mbps} !~ m/^\d+(\.\d+)?$/;
 959     return undef if $res->{mbps_max} && $res->{mbps_max} !~ m/^\d+(\.\d+)?$/;
 960     return undef if $res->{mbps_rd} && $res->{mbps_rd} !~ m/^\d+(\.\d+)?$/;
 961     return undef if $res->{mbps_rd_max} && $res->{mbps_rd_max} !~ m/^\d+(\.\d+)?$/;
 962     return undef if $res->{mbps_wr} && $res->{mbps_wr} !~ m/^\d+(\.\d+)?$/;
 963     return undef if $res->{mbps_wr_max} && $res->{mbps_wr_max} !~ m/^\d+(\.\d+)?$/;
 964
 965     return undef if $res->{iops_rd} && $res->{iops};
 966     return undef if $res->{iops_wr} && $res->{iops};
 967
 968
 969     return undef if $res->{iops} && $res->{iops} !~ m/^\d+$/;
 970     return undef if $res->{iops_max} && $res->{iops_max} !~ m/^\d+$/;
 971     return undef if $res->{iops_rd} && $res->{iops_rd} !~ m/^\d+$/;
 972     return undef if $res->{iops_rd_max} && $res->{iops_rd_max} !~ m/^\d+$/;
 973     return undef if $res->{iops_wr} && $res->{iops_wr} !~ m/^\d+$/;
 974     return undef if $res->{iops_wr_max} && $res->{iops_wr_max} !~ m/^\d+$/;
 975
 976
 977     if ($res->{size}) {
 978         return undef if !defined($res->{size} = &$parse_size($res->{size}));
 979     }
 980
 981     if ($res->{media} && ($res->{media} eq 'cdrom')) {
 982         return undef if $res->{snapshot} || $res->{trans} || $res->{format};
 983         return undef if $res->{heads} || $res->{secs} || $res->{cyls};
 984         return undef if $res->{interface} eq 'virtio';
 985     }
 986
 987     # rerror does not work with scsi drives
 988     if ($res->{rerror}) {
 989         return undef if $res->{interface} eq 'scsi';
 990     }
 991
 992     return $res;
 993 }
 994
 995 my @qemu_drive_options = qw(heads secs cyls trans media format cache snapshot rerror werror aio discard iops iops_rd iops_wr iops_max iops_rd_max iops_wr_max);
 996
 997 sub print_drive {
 998     my ($vmid, $drive) = @_;
 999
1000     my $opts = '';
1001     foreach my $o (@qemu_drive_options, 'mbps', 'mbps_rd', 'mbps_wr', 'mbps_max', 'mbps_rd_max', 'mbps_wr_max', 'backup') {
1002         $opts .= ",$o=$drive->{$o}" if $drive->{$o};
1003     }
1004
1005     if ($drive->{size}) {
1006         $opts .= ",size=" . &$format_size($drive->{size});
1007     }
1008
1009     return "$drive->{file}$opts";
1010 }
1011
1012 sub scsi_inquiry {
1013     my($fh, $noerr) = @_;
1014
1015     my $SG_IO = 0x2285;
1016     my $SG_GET_VERSION_NUM = 0x2282;
1017
1018     my $versionbuf = "\x00" x 8;
1019     my $ret = ioctl($fh, $SG_GET_VERSION_NUM, $versionbuf);
1020     if (!$ret) {
1021         die "scsi ioctl SG_GET_VERSION_NUM failoed - $!\n" if !$noerr;
1022         return undef;
1023     }
1024     my $version = unpack("I", $versionbuf);
1025     if ($version < 30000) {
1026         die "scsi generic interface too old\n"  if !$noerr;
1027         return undef;
1028     }
1029
1030     my $buf = "\x00" x 36;
1031     my $sensebuf = "\x00" x 8;
1032     my $cmd = pack("C x3 C x1", 0x12, 36);
1033
1034     # see /usr/include/scsi/sg.h
1035     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";
1036
1037     my $packet = pack($sg_io_hdr_t, ord('S'), -3, length($cmd),
1038                       length($sensebuf), 0, length($buf), $buf,
1039                       $cmd, $sensebuf, 6000);
1040
1041     $ret = ioctl($fh, $SG_IO, $packet);
1042     if (!$ret) {
1043         die "scsi ioctl SG_IO failed - $!\n" if !$noerr;
1044         return undef;
1045     }
1046
1047     my @res = unpack($sg_io_hdr_t, $packet);
1048     if ($res[17] || $res[18]) {
1049         die "scsi ioctl SG_IO status error - $!\n" if !$noerr;
1050         return undef;
1051     }
1052
1053     my $res = {};
1054     (my $byte0, my $byte1, $res->{vendor},
1055      $res->{product}, $res->{revision}) = unpack("C C x6 A8 A16 A4", $buf);
1056
1057     $res->{removable} = $byte1 & 128 ? 1 : 0;
1058     $res->{type} = $byte0 & 31;
1059
1060     return $res;
1061 }
1062
1063 sub path_is_scsi {
1064     my ($path) = @_;
1065
1066     my $fh = IO::File->new("+<$path") || return undef;
1067     my $res = scsi_inquiry($fh, 1);
1068     close($fh);
1069
1070     return $res;
1071 }
1072
1073 sub machine_type_is_q35 {
1074     my ($conf) = @_;
1075
1076     return $conf->{machine} && ($conf->{machine} =~ m/q35/) ? 1 : 0;
1077 }
1078
1079 sub print_tabletdevice_full {
1080     my ($conf) = @_;
1081
1082     my $q35 = machine_type_is_q35($conf);
1083
1084     # we use uhci for old VMs because tablet driver was buggy in older qemu
1085     my $usbbus = $q35 ? "ehci" : "uhci";
1086
1087     return "usb-tablet,id=tablet,bus=$usbbus.0,port=1";
1088 }
1089
1090 sub print_drivedevice_full {
1091     my ($storecfg, $conf, $vmid, $drive, $bridges) = @_;
1092
1093     my $device = '';
1094     my $maxdev = 0;
1095
1096     if ($drive->{interface} eq 'virtio') {
1097         my $pciaddr = print_pci_addr("$drive->{interface}$drive->{index}", $bridges);
1098         $device = "virtio-blk-pci,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}$pciaddr";
1099         $device .= ",iothread=iothread0" if $conf->{iothread};
1100     } elsif ($drive->{interface} eq 'scsi') {
1101         $maxdev = ($conf->{scsihw} && ($conf->{scsihw} !~ m/^lsi/)) ? 256 : 7;
1102         my $controller = int($drive->{index} / $maxdev);
1103         my $unit = $drive->{index} % $maxdev;
1104         my $devicetype = 'hd';
1105         my $path = '';
1106         if (drive_is_cdrom($drive)) {
1107               $devicetype = 'cd';
1108         } else {
1109               if ($drive->{file} =~ m|^/|) {
1110                   $path = $drive->{file};
1111               } else {
1112                   $path = PVE::Storage::path($storecfg, $drive->{file});
1113               }
1114
1115               if($path =~ m/^iscsi\:\/\//){
1116                   $devicetype = 'generic';
1117               } else {
1118                   if (my $info = path_is_scsi($path)) {
1119                       if ($info->{type} == 0) {
1120                           $devicetype = 'block';
1121                       } elsif ($info->{type} == 1) { # tape
1122                           $devicetype = 'generic';
1123                       }
1124                   }
1125               }
1126          }
1127
1128         if (!$conf->{scsihw} || ($conf->{scsihw} =~ m/^lsi/)){
1129             $device = "scsi-$devicetype,bus=scsihw$controller.0,scsi-id=$unit,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1130         } else {
1131             $device = "scsi-$devicetype,bus=scsihw$controller.0,channel=0,scsi-id=0,lun=$drive->{index},drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1132         }
1133
1134     } elsif ($drive->{interface} eq 'ide'){
1135         $maxdev = 2;
1136         my $controller = int($drive->{index} / $maxdev);
1137         my $unit = $drive->{index} % $maxdev;
1138         my $devicetype = ($drive->{media} && $drive->{media} eq 'cdrom') ? "cd" : "hd";
1139
1140         $device = "ide-$devicetype,bus=ide.$controller,unit=$unit,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1141     } elsif ($drive->{interface} eq 'sata'){
1142         my $controller = int($drive->{index} / $MAX_SATA_DISKS);
1143         my $unit = $drive->{index} % $MAX_SATA_DISKS;
1144         $device = "ide-drive,bus=ahci$controller.$unit,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1145     } elsif ($drive->{interface} eq 'usb') {
1146         die "implement me";
1147         #  -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0
1148     } else {
1149         die "unsupported interface type";
1150     }
1151
1152     $device .= ",bootindex=$drive->{bootindex}" if $drive->{bootindex};
1153
1154     return $device;
1155 }
1156
1157 sub get_initiator_name {
1158     my $initiator;
1159
1160     my $fh = IO::File->new('/etc/iscsi/initiatorname.iscsi') || return undef;
1161     while (defined(my $line = <$fh>)) {
1162         next if $line !~ m/^\s*InitiatorName\s*=\s*([\.\-:\w]+)/;
1163         $initiator = $1;
1164         last;
1165     }
1166     $fh->close();
1167
1168     return $initiator;
1169 }
1170
1171 sub print_drive_full {
1172     my ($storecfg, $vmid, $drive) = @_;
1173
1174     my $opts = '';
1175     foreach my $o (@qemu_drive_options) {
1176         next if $o eq 'bootindex';
1177         $opts .= ",$o=$drive->{$o}" if $drive->{$o};
1178     }
1179
1180     foreach my $o (qw(bps bps_rd bps_wr)) {
1181         my $v = $drive->{"m$o"};
1182         $opts .= ",$o=" . int($v*1024*1024) if $v;
1183     }
1184
1185     # use linux-aio by default (qemu default is threads)
1186     $opts .= ",aio=native" if !$drive->{aio};
1187
1188     my $path;
1189     my $volid = $drive->{file};
1190     if (drive_is_cdrom($drive)) {
1191         $path = get_iso_path($storecfg, $vmid, $volid);
1192     } else {
1193         if ($volid =~ m|^/|) {
1194             $path = $volid;
1195         } else {
1196             $path = PVE::Storage::path($storecfg, $volid);
1197         }
1198     }
1199
1200     $opts .= ",cache=none" if !$drive->{cache} && !drive_is_cdrom($drive);
1201
1202     my $detectzeroes = $drive->{discard} ? "unmap" : "on";
1203     $opts .= ",detect-zeroes=$detectzeroes" if !drive_is_cdrom($drive);
1204
1205     my $pathinfo = $path ? "file=$path," : '';
1206
1207     return "${pathinfo}if=none,id=drive-$drive->{interface}$drive->{index}$opts";
1208 }
1209
1210 sub print_netdevice_full {
1211     my ($vmid, $conf, $net, $netid, $bridges) = @_;
1212
1213     my $bootorder = $conf->{boot} || $confdesc->{boot}->{default};
1214
1215     my $device = $net->{model};
1216     if ($net->{model} eq 'virtio') {
1217          $device = 'virtio-net-pci';
1218      };
1219
1220     # qemu > 0.15 always try to boot from network - we disable that by
1221     # not loading the pxe rom file
1222     my $extra = ($bootorder !~ m/n/) ? "romfile=," : '';
1223     my $pciaddr = print_pci_addr("$netid", $bridges);
1224     my $tmpstr = "$device,${extra}mac=$net->{macaddr},netdev=$netid$pciaddr,id=$netid";
1225     if ($net->{queues} && $net->{queues} > 1 && $net->{model} eq 'virtio'){
1226         #Consider we have N queues, the number of vectors needed is 2*N + 2 (plus one config interrupt and control vq)
1227         my $vectors = $net->{queues} * 2 + 2;
1228         $tmpstr .= ",vectors=$vectors,mq=on";
1229     }
1230     $tmpstr .= ",bootindex=$net->{bootindex}" if $net->{bootindex} ;
1231     return $tmpstr;
1232 }
1233
1234 sub print_netdev_full {
1235     my ($vmid, $conf, $net, $netid) = @_;
1236
1237     my $i = '';
1238     if ($netid =~ m/^net(\d+)$/) {
1239         $i = int($1);
1240     }
1241
1242     die "got strange net id '$i'\n" if $i >= ${MAX_NETS};
1243
1244     my $ifname = "tap${vmid}i$i";
1245
1246     # kvm uses TUNSETIFF ioctl, and that limits ifname length
1247     die "interface name '$ifname' is too long (max 15 character)\n"
1248         if length($ifname) >= 16;
1249
1250     my $vhostparam = '';
1251     $vhostparam = ',vhost=on' if $kernel_has_vhost_net && $net->{model} eq 'virtio';
1252
1253     my $vmname = $conf->{name} || "vm$vmid";
1254
1255     my $netdev = "";
1256
1257     if ($net->{bridge}) {
1258         $netdev = "type=tap,id=$netid,ifname=${ifname},script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown$vhostparam";
1259     } else {
1260         $netdev = "type=user,id=$netid,hostname=$vmname";
1261     }
1262
1263     $netdev .= ",queues=$net->{queues}" if ($net->{queues} && $net->{model} eq 'virtio');
1264
1265     return $netdev;
1266 }
1267
1268 sub drive_is_cdrom {
1269     my ($drive) = @_;
1270
1271     return $drive && $drive->{media} && ($drive->{media} eq 'cdrom');
1272
1273 }
1274
1275 sub parse_hostpci {
1276     my ($value) = @_;
1277
1278     return undef if !$value;
1279
1280
1281     my @list = split(/,/, $value);
1282     my $found;
1283
1284     my $res = {};
1285     foreach my $kv (@list) {
1286
1287         if ($kv =~ m/^(host=)?([a-f0-9]{2}:[a-f0-9]{2})(\.([a-f0-9]))?$/) {
1288             $found = 1;
1289             if(defined($4)){
1290                 push @{$res->{pciid}}, { id => $2 , function => $4};
1291
1292             }else{
1293                 my $pcidevices = lspci($2);
1294                 $res->{pciid} = $pcidevices->{$2};
1295             }
1296         } elsif ($kv =~ m/^driver=(kvm|vfio)$/) {
1297             $res->{driver} = $1;
1298         } elsif ($kv =~ m/^rombar=(on|off)$/) {
1299             $res->{rombar} = $1;
1300         } elsif ($kv =~ m/^x-vga=(on|off)$/) {
1301             $res->{'x-vga'} = $1;
1302         } elsif ($kv =~ m/^pcie=(\d+)$/) {
1303             $res->{pcie} = 1 if $1 == 1;
1304         } else {
1305             warn "unknown hostpci setting '$kv'\n";
1306         }
1307     }
1308
1309     return undef if !$found;
1310
1311     return $res;
1312 }
1313
1314 # netX: e1000=XX:XX:XX:XX:XX:XX,bridge=vmbr0,rate=<mbps>
1315 sub parse_net {
1316     my ($data) = @_;
1317
1318     my $res = {};
1319
1320     foreach my $kvp (split(/,/, $data)) {
1321
1322         if ($kvp =~ m/^(ne2k_pci|e1000|rtl8139|pcnet|virtio|ne2k_isa|i82551|i82557b|i82559er|vmxnet3)(=([0-9a-f]{2}(:[0-9a-f]{2}){5}))?$/i) {
1323             my $model = lc($1);
1324             my $mac = defined($3) ? uc($3) : PVE::Tools::random_ether_addr();
1325             $res->{model} = $model;
1326             $res->{macaddr} = $mac;
1327         } elsif ($kvp =~ m/^bridge=(\S+)$/) {
1328             $res->{bridge} = $1;
1329         } elsif ($kvp =~ m/^queues=(\d+)$/) {
1330             $res->{queues} = $1;
1331         } elsif ($kvp =~ m/^rate=(\d+(\.\d+)?)$/) {
1332             $res->{rate} = $1;
1333         } elsif ($kvp =~ m/^tag=(\d+)$/) {
1334             $res->{tag} = $1;
1335         } elsif ($kvp =~ m/^firewall=(\d+)$/) {
1336             $res->{firewall} = $1;
1337         } else {
1338             return undef;
1339         }
1340
1341     }
1342
1343     return undef if !$res->{model};
1344
1345     return $res;
1346 }
1347
1348 sub print_net {
1349     my $net = shift;
1350
1351     my $res = "$net->{model}";
1352     $res .= "=$net->{macaddr}" if $net->{macaddr};
1353     $res .= ",bridge=$net->{bridge}" if $net->{bridge};
1354     $res .= ",rate=$net->{rate}" if $net->{rate};
1355     $res .= ",tag=$net->{tag}" if $net->{tag};
1356     $res .= ",firewall=$net->{firewall}" if $net->{firewall};
1357
1358     return $res;
1359 }
1360
1361 sub add_random_macs {
1362     my ($settings) = @_;
1363
1364     foreach my $opt (keys %$settings) {
1365         next if $opt !~ m/^net(\d+)$/;
1366         my $net = parse_net($settings->{$opt});
1367         next if !$net;
1368         $settings->{$opt} = print_net($net);
1369     }
1370 }
1371
1372 sub add_unused_volume {
1373     my ($config, $volid) = @_;
1374
1375     my $key;
1376     for (my $ind = $MAX_UNUSED_DISKS - 1; $ind >= 0; $ind--) {
1377         my $test = "unused$ind";
1378         if (my $vid = $config->{$test}) {
1379             return if $vid eq $volid; # do not add duplicates
1380         } else {
1381             $key = $test;
1382         }
1383     }
1384
1385     die "To many unused volume - please delete them first.\n" if !$key;
1386
1387     $config->{$key} = $volid;
1388
1389     return $key;
1390 }
1391
1392 my $valid_smbios1_options = {
1393     manufacturer => '\S+',
1394     product => '\S+',
1395     version => '\S+',
1396     serial => '\S+',
1397     uuid => '[a-fA-F0-9]{8}(?:-[a-fA-F0-9]{4}){3}-[a-fA-F0-9]{12}',
1398     sku => '\S+',
1399     family => '\S+',
1400 };
1401
1402 # smbios: [manufacturer=str][,product=str][,version=str][,serial=str][,uuid=uuid][,sku=str][,family=str]
1403 sub parse_smbios1 {
1404     my ($data) = @_;
1405
1406     my $res = {};
1407
1408     foreach my $kvp (split(/,/, $data)) {
1409         return undef if $kvp !~ m/^(\S+)=(.+)$/;
1410         my ($k, $v) = split(/=/, $kvp);
1411         return undef if !defined($k) || !defined($v);
1412         return undef if !$valid_smbios1_options->{$k};
1413         return undef if $v !~ m/^$valid_smbios1_options->{$k}$/;
1414         $res->{$k} = $v;
1415     }
1416
1417     return $res;
1418 }
1419
1420 sub print_smbios1 {
1421     my ($smbios1) = @_;
1422
1423     my $data = '';
1424     foreach my $k (keys %$smbios1) {
1425         next if !defined($smbios1->{$k});
1426         next if !$valid_smbios1_options->{$k};
1427         $data .= ',' if $data;
1428         $data .= "$k=$smbios1->{$k}";
1429     }
1430     return $data;
1431 }
1432
1433 PVE::JSONSchema::register_format('pve-qm-smbios1', \&verify_smbios1);
1434 sub verify_smbios1 {
1435     my ($value, $noerr) = @_;
1436
1437     return $value if parse_smbios1($value);
1438
1439     return undef if $noerr;
1440
1441     die "unable to parse smbios (type 1) options\n";
1442 }
1443
1444 PVE::JSONSchema::register_format('pve-qm-bootdisk', \&verify_bootdisk);
1445 sub verify_bootdisk {
1446     my ($value, $noerr) = @_;
1447
1448     return $value if valid_drivename($value);
1449
1450     return undef if $noerr;
1451
1452     die "invalid boot disk '$value'\n";
1453 }
1454
1455 PVE::JSONSchema::register_format('pve-qm-net', \&verify_net);
1456 sub verify_net {
1457     my ($value, $noerr) = @_;
1458
1459     return $value if parse_net($value);
1460
1461     return undef if $noerr;
1462
1463     die "unable to parse network options\n";
1464 }
1465
1466 PVE::JSONSchema::register_format('pve-qm-drive', \&verify_drive);
1467 sub verify_drive {
1468     my ($value, $noerr) = @_;
1469
1470     return $value if parse_drive(undef, $value);
1471
1472     return undef if $noerr;
1473
1474     die "unable to parse drive options\n";
1475 }
1476
1477 PVE::JSONSchema::register_format('pve-qm-hostpci', \&verify_hostpci);
1478 sub verify_hostpci {
1479     my ($value, $noerr) = @_;
1480
1481     return $value if parse_hostpci($value);
1482
1483     return undef if $noerr;
1484
1485     die "unable to parse pci id\n";
1486 }
1487
1488 PVE::JSONSchema::register_format('pve-qm-watchdog', \&verify_watchdog);
1489 sub verify_watchdog {
1490     my ($value, $noerr) = @_;
1491
1492     return $value if parse_watchdog($value);
1493
1494     return undef if $noerr;
1495
1496     die "unable to parse watchdog options\n";
1497 }
1498
1499 sub parse_watchdog {
1500     my ($value) = @_;
1501
1502     return undef if !$value;
1503
1504     my $res = {};
1505
1506     foreach my $p (split(/,/, $value)) {
1507         next if $p =~ m/^\s*$/;
1508
1509         if ($p =~ m/^(model=)?(i6300esb|ib700)$/) {
1510             $res->{model} = $2;
1511         } elsif ($p =~ m/^(action=)?(reset|shutdown|poweroff|pause|debug|none)$/) {
1512             $res->{action} = $2;
1513         } else {
1514             return undef;
1515         }
1516     }
1517
1518     return $res;
1519 }
1520
1521 PVE::JSONSchema::register_format('pve-qm-startup', \&verify_startup);
1522 sub verify_startup {
1523     my ($value, $noerr) = @_;
1524
1525     return $value if parse_startup($value);
1526
1527     return undef if $noerr;
1528
1529     die "unable to parse startup options\n";
1530 }
1531
1532 sub parse_startup {
1533     my ($value) = @_;
1534
1535     return undef if !$value;
1536
1537     my $res = {};
1538
1539     foreach my $p (split(/,/, $value)) {
1540         next if $p =~ m/^\s*$/;
1541
1542         if ($p =~ m/^(order=)?(\d+)$/) {
1543             $res->{order} = $2;
1544         } elsif ($p =~ m/^up=(\d+)$/) {
1545             $res->{up} = $1;
1546         } elsif ($p =~ m/^down=(\d+)$/) {
1547             $res->{down} = $1;
1548         } else {
1549             return undef;
1550         }
1551     }
1552
1553     return $res;
1554 }
1555
1556 sub parse_usb_device {
1557     my ($value) = @_;
1558
1559     return undef if !$value;
1560
1561     my @dl = split(/,/, $value);
1562     my $found;
1563
1564     my $res = {};
1565     foreach my $v (@dl) {
1566         if ($v =~ m/^host=(0x)?([0-9A-Fa-f]{4}):(0x)?([0-9A-Fa-f]{4})$/) {
1567             $found = 1;
1568             $res->{vendorid} = $2;
1569             $res->{productid} = $4;
1570         } elsif ($v =~ m/^host=(\d+)\-(\d+(\.\d+)*)$/) {
1571             $found = 1;
1572             $res->{hostbus} = $1;
1573             $res->{hostport} = $2;
1574         } elsif ($v =~ m/^spice$/) {
1575             $found = 1;
1576             $res->{spice} = 1;
1577         } else {
1578             return undef;
1579         }
1580     }
1581     return undef if !$found;
1582
1583     return $res;
1584 }
1585
1586 PVE::JSONSchema::register_format('pve-qm-usb-device', \&verify_usb_device);
1587 sub verify_usb_device {
1588     my ($value, $noerr) = @_;
1589
1590     return $value if parse_usb_device($value);
1591
1592     return undef if $noerr;
1593
1594     die "unable to parse usb device\n";
1595 }
1596
1597 # add JSON properties for create and set function
1598 sub json_config_properties {
1599     my $prop = shift;
1600
1601     foreach my $opt (keys %$confdesc) {
1602         next if $opt eq 'parent' || $opt eq 'snaptime' || $opt eq 'vmstate';
1603         $prop->{$opt} = $confdesc->{$opt};
1604     }
1605
1606     return $prop;
1607 }
1608
1609 sub check_type {
1610     my ($key, $value) = @_;
1611
1612     die "unknown setting '$key'\n" if !$confdesc->{$key};
1613
1614     my $type = $confdesc->{$key}->{type};
1615
1616     if (!defined($value)) {
1617         die "got undefined value\n";
1618     }
1619
1620     if ($value =~ m/[\n\r]/) {
1621         die "property contains a line feed\n";
1622     }
1623
1624     if ($type eq 'boolean') {
1625         return 1 if ($value eq '1') || ($value =~ m/^(on|yes|true)$/i);
1626         return 0 if ($value eq '0') || ($value =~ m/^(off|no|false)$/i);
1627         die "type check ('boolean') failed - got '$value'\n";
1628     } elsif ($type eq 'integer') {
1629         return int($1) if $value =~ m/^(\d+)$/;
1630         die "type check ('integer') failed - got '$value'\n";
1631     } elsif ($type eq 'number') {
1632         return $value if $value =~ m/^(\d+)(\.\d+)?$/;
1633         die "type check ('number') failed - got '$value'\n";
1634     } elsif ($type eq 'string') {
1635         if (my $fmt = $confdesc->{$key}->{format}) {
1636             if ($fmt eq 'pve-qm-drive') {
1637                 # special case - we need to pass $key to parse_drive()
1638                 my $drive = parse_drive($key, $value);
1639                 return $value if $drive;
1640                 die "unable to parse drive options\n";
1641             }
1642             PVE::JSONSchema::check_format($fmt, $value);
1643             return $value;
1644         }
1645         $value =~ s/^\"(.*)\"$/$1/;
1646         return $value;
1647     } else {
1648         die "internal error"
1649     }
1650 }
1651
1652 sub lock_config_full {
1653     my ($vmid, $timeout, $code, @param) = @_;
1654
1655     my $filename = config_file_lock($vmid);
1656
1657     my $res = lock_file($filename, $timeout, $code, @param);
1658
1659     die $@ if $@;
1660
1661     return $res;
1662 }
1663
1664 sub lock_config_mode {
1665     my ($vmid, $timeout, $shared, $code, @param) = @_;
1666
1667     my $filename = config_file_lock($vmid);
1668
1669     my $res = lock_file_full($filename, $timeout, $shared, $code, @param);
1670
1671     die $@ if $@;
1672
1673     return $res;
1674 }
1675
1676 sub lock_config {
1677     my ($vmid, $code, @param) = @_;
1678
1679     return lock_config_full($vmid, 10, $code, @param);
1680 }
1681
1682 sub cfs_config_path {
1683     my ($vmid, $node) = @_;
1684
1685     $node = $nodename if !$node;
1686     return "nodes/$node/qemu-server/$vmid.conf";
1687 }
1688
1689 sub check_iommu_support{
1690     #fixme : need to check IOMMU support
1691     #http://www.linux-kvm.org/page/How_to_assign_devices_with_VT-d_in_KVM
1692
1693     my $iommu=1;
1694     return $iommu;
1695
1696 }
1697
1698 sub config_file {
1699     my ($vmid, $node) = @_;
1700
1701     my $cfspath = cfs_config_path($vmid, $node);
1702     return "/etc/pve/$cfspath";
1703 }
1704
1705 sub config_file_lock {
1706     my ($vmid) = @_;
1707
1708     return "$lock_dir/lock-$vmid.conf";
1709 }
1710
1711 sub touch_config {
1712     my ($vmid) = @_;
1713
1714     my $conf = config_file($vmid);
1715     utime undef, undef, $conf;
1716 }
1717
1718 sub destroy_vm {
1719     my ($storecfg, $vmid, $keep_empty_config) = @_;
1720
1721     my $conffile = config_file($vmid);
1722
1723     my $conf = load_config($vmid);
1724
1725     check_lock($conf);
1726
1727     # only remove disks owned by this VM
1728     foreach_drive($conf, sub {
1729         my ($ds, $drive) = @_;
1730
1731         return if drive_is_cdrom($drive);
1732
1733         my $volid = $drive->{file};
1734
1735         return if !$volid || $volid =~ m|^/|;
1736
1737         my ($path, $owner) = PVE::Storage::path($storecfg, $volid);
1738         return if !$path || !$owner || ($owner != $vmid);
1739
1740         PVE::Storage::vdisk_free($storecfg, $volid);
1741     });
1742
1743     if ($keep_empty_config) {
1744         PVE::Tools::file_set_contents($conffile, "memory: 128\n");
1745     } else {
1746         unlink $conffile;
1747     }
1748
1749     # also remove unused disk
1750     eval {
1751         my $dl = PVE::Storage::vdisk_list($storecfg, undef, $vmid);
1752
1753         eval {
1754             PVE::Storage::foreach_volid($dl, sub {
1755                 my ($volid, $sid, $volname, $d) = @_;
1756                 PVE::Storage::vdisk_free($storecfg, $volid);
1757             });
1758         };
1759         warn $@ if $@;
1760
1761     };
1762     warn $@ if $@;
1763 }
1764
1765 sub load_config {
1766     my ($vmid, $node) = @_;
1767
1768     my $cfspath = cfs_config_path($vmid, $node);
1769
1770     my $conf = PVE::Cluster::cfs_read_file($cfspath);
1771
1772     die "no such VM ('$vmid')\n" if !defined($conf);
1773
1774     return $conf;
1775 }
1776
1777 sub parse_vm_config {
1778     my ($filename, $raw) = @_;
1779
1780     return undef if !defined($raw);
1781
1782     my $res = {
1783         digest => Digest::SHA::sha1_hex($raw),
1784         snapshots => {},
1785     };
1786
1787     $filename =~ m|/qemu-server/(\d+)\.conf$|
1788         || die "got strange filename '$filename'";
1789
1790     my $vmid = $1;
1791
1792     my $conf = $res;
1793     my $descr = '';
1794
1795     my @lines = split(/\n/, $raw);
1796     foreach my $line (@lines) {
1797         next if $line =~ m/^\s*$/;
1798
1799         if ($line =~ m/^\[([a-z][a-z0-9_\-]+)\]\s*$/i) {
1800             my $snapname = $1;
1801             $conf->{description} = $descr if $descr;
1802             $descr = '';
1803             $conf = $res->{snapshots}->{$snapname} = {};
1804             next;
1805         }
1806
1807         if ($line =~ m/^\#(.*)\s*$/) {
1808             $descr .= PVE::Tools::decode_text($1) . "\n";
1809             next;
1810         }
1811
1812         if ($line =~ m/^(description):\s*(.*\S)\s*$/) {
1813             $descr .= PVE::Tools::decode_text($2);
1814         } elsif ($line =~ m/snapstate:\s*(prepare|delete)\s*$/) {
1815             $conf->{snapstate} = $1;
1816         } elsif ($line =~ m/^(args):\s*(.*\S)\s*$/) {
1817             my $key = $1;
1818             my $value = $2;
1819             $conf->{$key} = $value;
1820         } elsif ($line =~ m/^([a-z][a-z_]*\d*):\s*(\S+)\s*$/) {
1821             my $key = $1;
1822             my $value = $2;
1823             eval { $value = check_type($key, $value); };
1824             if ($@) {
1825                 warn "vm $vmid - unable to parse value of '$key' - $@";
1826             } else {
1827                 my $fmt = $confdesc->{$key}->{format};
1828                 if ($fmt && $fmt eq 'pve-qm-drive') {
1829                     my $v = parse_drive($key, $value);
1830                     if (my $volid = filename_to_volume_id($vmid, $v->{file}, $v->{media})) {
1831                         $v->{file} = $volid;
1832                         $value = print_drive($vmid, $v);
1833                     } else {
1834                         warn "vm $vmid - unable to parse value of '$key'\n";
1835                         next;
1836                     }
1837                 }
1838
1839                 if ($key eq 'cdrom') {
1840                     $conf->{ide2} = $value;
1841                 } else {
1842                     $conf->{$key} = $value;
1843                 }
1844             }
1845         }
1846     }
1847
1848     $conf->{description} = $descr if $descr;
1849
1850     delete $res->{snapstate}; # just to be sure
1851
1852     return $res;
1853 }
1854
1855 sub write_vm_config {
1856     my ($filename, $conf) = @_;
1857
1858     delete $conf->{snapstate}; # just to be sure
1859
1860     if ($conf->{cdrom}) {
1861         die "option ide2 conflicts with cdrom\n" if $conf->{ide2};
1862         $conf->{ide2} = $conf->{cdrom};
1863         delete $conf->{cdrom};
1864     }
1865
1866     # we do not use 'smp' any longer
1867     if ($conf->{sockets}) {
1868         delete $conf->{smp};
1869     } elsif ($conf->{smp}) {
1870         $conf->{sockets} = $conf->{smp};
1871         delete $conf->{cores};
1872         delete $conf->{smp};
1873     }
1874
1875     if ($conf->{maxcpus} && $conf->{sockets}) {
1876         delete $conf->{sockets};
1877     }
1878
1879     my $used_volids = {};
1880
1881     my $cleanup_config = sub {
1882         my ($cref, $snapname) = @_;
1883
1884         foreach my $key (keys %$cref) {
1885             next if $key eq 'digest' || $key eq 'description' || $key eq 'snapshots' ||
1886                 $key eq 'snapstate';
1887             my $value = $cref->{$key};
1888             eval { $value = check_type($key, $value); };
1889             die "unable to parse value of '$key' - $@" if $@;
1890
1891             $cref->{$key} = $value;
1892
1893             if (!$snapname && valid_drivename($key)) {
1894                 my $drive = parse_drive($key, $value);
1895                 $used_volids->{$drive->{file}} = 1 if $drive && $drive->{file};
1896             }
1897         }
1898     };
1899
1900     &$cleanup_config($conf);
1901     foreach my $snapname (keys %{$conf->{snapshots}}) {
1902         &$cleanup_config($conf->{snapshots}->{$snapname}, $snapname);
1903     }
1904
1905     # remove 'unusedX' settings if we re-add a volume
1906     foreach my $key (keys %$conf) {
1907         my $value = $conf->{$key};
1908         if ($key =~ m/^unused/ && $used_volids->{$value}) {
1909             delete $conf->{$key};
1910         }
1911     }
1912
1913     my $generate_raw_config = sub {
1914         my ($conf) = @_;
1915
1916         my $raw = '';
1917
1918         # add description as comment to top of file
1919         my $descr = $conf->{description} || '';
1920         foreach my $cl (split(/\n/, $descr)) {
1921             $raw .= '#' .  PVE::Tools::encode_text($cl) . "\n";
1922         }
1923
1924         foreach my $key (sort keys %$conf) {
1925             next if $key eq 'digest' || $key eq 'description' || $key eq 'snapshots';
1926             $raw .= "$key: $conf->{$key}\n";
1927         }
1928         return $raw;
1929     };
1930
1931     my $raw = &$generate_raw_config($conf);
1932     foreach my $snapname (sort keys %{$conf->{snapshots}}) {
1933         $raw .= "\n[$snapname]\n";
1934         $raw .= &$generate_raw_config($conf->{snapshots}->{$snapname});
1935     }
1936
1937     return $raw;
1938 }
1939
1940 sub update_config_nolock {
1941     my ($vmid, $conf, $skiplock) = @_;
1942
1943     check_lock($conf) if !$skiplock;
1944
1945     my $cfspath = cfs_config_path($vmid);
1946
1947     PVE::Cluster::cfs_write_file($cfspath, $conf);
1948 }
1949
1950 sub update_config {
1951     my ($vmid, $conf, $skiplock) = @_;
1952
1953     lock_config($vmid, &update_config_nolock, $conf, $skiplock);
1954 }
1955
1956 sub load_defaults {
1957
1958     my $res = {};
1959
1960     # we use static defaults from our JSON schema configuration
1961     foreach my $key (keys %$confdesc) {
1962         if (defined(my $default = $confdesc->{$key}->{default})) {
1963             $res->{$key} = $default;
1964         }
1965     }
1966
1967     my $conf = PVE::Cluster::cfs_read_file('datacenter.cfg');
1968     $res->{keyboard} = $conf->{keyboard} if $conf->{keyboard};
1969
1970     return $res;
1971 }
1972
1973 sub config_list {
1974     my $vmlist = PVE::Cluster::get_vmlist();
1975     my $res = {};
1976     return $res if !$vmlist || !$vmlist->{ids};
1977     my $ids = $vmlist->{ids};
1978
1979     foreach my $vmid (keys %$ids) {
1980         my $d = $ids->{$vmid};
1981         next if !$d->{node} || $d->{node} ne $nodename;
1982         next if !$d->{type} || $d->{type} ne 'qemu';
1983         $res->{$vmid}->{exists} = 1;
1984     }
1985     return $res;
1986 }
1987
1988 # test if VM uses local resources (to prevent migration)
1989 sub check_local_resources {
1990     my ($conf, $noerr) = @_;
1991
1992     my $loc_res = 0;
1993
1994     $loc_res = 1 if $conf->{hostusb}; # old syntax
1995     $loc_res = 1 if $conf->{hostpci}; # old syntax
1996
1997     foreach my $k (keys %$conf) {
1998         next if $k =~ m/^usb/ && ($conf->{$k} eq 'spice');
1999         $loc_res = 1 if $k =~ m/^(usb|hostpci|serial|parallel)\d+$/;
2000     }
2001
2002     die "VM uses local resources\n" if $loc_res && !$noerr;
2003
2004     return $loc_res;
2005 }
2006
2007 # check if used storages are available on all nodes (use by migrate)
2008 sub check_storage_availability {
2009     my ($storecfg, $conf, $node) = @_;
2010
2011     foreach_drive($conf, sub {
2012         my ($ds, $drive) = @_;
2013
2014         my $volid = $drive->{file};
2015         return if !$volid;
2016
2017         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
2018         return if !$sid;
2019
2020         # check if storage is available on both nodes
2021         my $scfg = PVE::Storage::storage_check_node($storecfg, $sid);
2022         PVE::Storage::storage_check_node($storecfg, $sid, $node);
2023    });
2024 }
2025
2026 # list nodes where all VM images are available (used by has_feature API)
2027 sub shared_nodes {
2028     my ($conf, $storecfg) = @_;
2029
2030     my $nodelist = PVE::Cluster::get_nodelist();
2031     my $nodehash = { map { $_ => 1 } @$nodelist };
2032     my $nodename = PVE::INotify::nodename();
2033
2034     foreach_drive($conf, sub {
2035         my ($ds, $drive) = @_;
2036
2037         my $volid = $drive->{file};
2038         return if !$volid;
2039
2040         my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
2041         if ($storeid) {
2042             my $scfg = PVE::Storage::storage_config($storecfg, $storeid);
2043             if ($scfg->{disable}) {
2044                 $nodehash = {};
2045             } elsif (my $avail = $scfg->{nodes}) {
2046                 foreach my $node (keys %$nodehash) {
2047                     delete $nodehash->{$node} if !$avail->{$node};
2048                 }
2049             } elsif (!$scfg->{shared}) {
2050                 foreach my $node (keys %$nodehash) {
2051                     delete $nodehash->{$node} if $node ne $nodename
2052                 }
2053             }
2054         }
2055     });
2056
2057     return $nodehash
2058 }
2059
2060 sub check_lock {
2061     my ($conf) = @_;
2062
2063     die "VM is locked ($conf->{lock})\n" if $conf->{lock};
2064 }
2065
2066 sub check_cmdline {
2067     my ($pidfile, $pid) = @_;
2068
2069     my $fh = IO::File->new("/proc/$pid/cmdline", "r");
2070     if (defined($fh)) {
2071         my $line = <$fh>;
2072         $fh->close;
2073         return undef if !$line;
2074         my @param = split(/\0/, $line);
2075
2076         my $cmd = $param[0];
2077         return if !$cmd || ($cmd !~ m|kvm$| && $cmd !~ m|qemu-system-x86_64$|);
2078
2079         for (my $i = 0; $i < scalar (@param); $i++) {
2080             my $p = $param[$i];
2081             next if !$p;
2082             if (($p eq '-pidfile') || ($p eq '--pidfile')) {
2083                 my $p = $param[$i+1];
2084                 return 1 if $p && ($p eq $pidfile);
2085                 return undef;
2086             }
2087         }
2088     }
2089     return undef;
2090 }
2091
2092 sub check_running {
2093     my ($vmid, $nocheck, $node) = @_;
2094
2095     my $filename = config_file($vmid, $node);
2096
2097     die "unable to find configuration file for VM $vmid - no such machine\n"
2098         if !$nocheck && ! -f $filename;
2099
2100     my $pidfile = pidfile_name($vmid);
2101
2102     if (my $fd = IO::File->new("<$pidfile")) {
2103         my $st = stat($fd);
2104         my $line = <$fd>;
2105         close($fd);
2106
2107         my $mtime = $st->mtime;
2108         if ($mtime > time()) {
2109             warn "file '$filename' modified in future\n";
2110         }
2111
2112         if ($line =~ m/^(\d+)$/) {
2113             my $pid = $1;
2114             if (check_cmdline($pidfile, $pid)) {
2115                 if (my $pinfo = PVE::ProcFSTools::check_process_running($pid)) {
2116                     return $pid;
2117                 }
2118             }
2119         }
2120     }
2121
2122     return undef;
2123 }
2124
2125 sub vzlist {
2126
2127     my $vzlist = config_list();
2128
2129     my $fd = IO::Dir->new($var_run_tmpdir) || return $vzlist;
2130
2131     while (defined(my $de = $fd->read)) {
2132         next if $de !~ m/^(\d+)\.pid$/;
2133         my $vmid = $1;
2134         next if !defined($vzlist->{$vmid});
2135         if (my $pid = check_running($vmid)) {
2136             $vzlist->{$vmid}->{pid} = $pid;
2137         }
2138     }
2139
2140     return $vzlist;
2141 }
2142
2143 sub disksize {
2144     my ($storecfg, $conf) = @_;
2145
2146     my $bootdisk = $conf->{bootdisk};
2147     return undef if !$bootdisk;
2148     return undef if !valid_drivename($bootdisk);
2149
2150     return undef if !$conf->{$bootdisk};
2151
2152     my $drive = parse_drive($bootdisk, $conf->{$bootdisk});
2153     return undef if !defined($drive);
2154
2155     return undef if drive_is_cdrom($drive);
2156
2157     my $volid = $drive->{file};
2158     return undef if !$volid;
2159
2160     return $drive->{size};
2161 }
2162
2163 my $last_proc_pid_stat;
2164
2165 # get VM status information
2166 # This must be fast and should not block ($full == false)
2167 # We only query KVM using QMP if $full == true (this can be slow)
2168 sub vmstatus {
2169     my ($opt_vmid, $full) = @_;
2170
2171     my $res = {};
2172
2173     my $storecfg = PVE::Storage::config();
2174
2175     my $list = vzlist();
2176     my ($uptime) = PVE::ProcFSTools::read_proc_uptime(1);
2177
2178     my $cpucount = $cpuinfo->{cpus} || 1;
2179
2180     foreach my $vmid (keys %$list) {
2181         next if $opt_vmid && ($vmid ne $opt_vmid);
2182
2183         my $cfspath = cfs_config_path($vmid);
2184         my $conf = PVE::Cluster::cfs_read_file($cfspath) || {};
2185
2186         my $d = {};
2187         $d->{pid} = $list->{$vmid}->{pid};
2188
2189         # fixme: better status?
2190         $d->{status} = $list->{$vmid}->{pid} ? 'running' : 'stopped';
2191
2192         my $size = disksize($storecfg, $conf);
2193         if (defined($size)) {
2194             $d->{disk} = 0; # no info available
2195             $d->{maxdisk} = $size;
2196         } else {
2197             $d->{disk} = 0;
2198             $d->{maxdisk} = 0;
2199         }
2200
2201         $d->{cpus} = ($conf->{sockets} || 1) * ($conf->{cores} || 1);
2202         $d->{cpus} = $cpucount if $d->{cpus} > $cpucount;
2203
2204         $d->{name} = $conf->{name} || "VM $vmid";
2205         $d->{maxmem} = $conf->{memory} ? $conf->{memory}*(1024*1024) : 0;
2206
2207         if ($conf->{balloon}) {
2208             $d->{balloon_min} = $conf->{balloon}*(1024*1024);
2209             $d->{shares} = defined($conf->{shares}) ? $conf->{shares} : 1000;
2210         }
2211
2212         $d->{uptime} = 0;
2213         $d->{cpu} = 0;
2214         $d->{mem} = 0;
2215
2216         $d->{netout} = 0;
2217         $d->{netin} = 0;
2218
2219         $d->{diskread} = 0;
2220         $d->{diskwrite} = 0;
2221
2222         $d->{template} = is_template($conf);
2223
2224         $res->{$vmid} = $d;
2225     }
2226
2227     my $netdev = PVE::ProcFSTools::read_proc_net_dev();
2228     foreach my $dev (keys %$netdev) {
2229         next if $dev !~ m/^tap([1-9]\d*)i/;
2230         my $vmid = $1;
2231         my $d = $res->{$vmid};
2232         next if !$d;
2233
2234         $d->{netout} += $netdev->{$dev}->{receive};
2235         $d->{netin} += $netdev->{$dev}->{transmit};
2236     }
2237
2238     my $ctime = gettimeofday;
2239
2240     foreach my $vmid (keys %$list) {
2241
2242         my $d = $res->{$vmid};
2243         my $pid = $d->{pid};
2244         next if !$pid;
2245
2246         my $pstat = PVE::ProcFSTools::read_proc_pid_stat($pid);
2247         next if !$pstat; # not running
2248
2249         my $used = $pstat->{utime} + $pstat->{stime};
2250
2251         $d->{uptime} = int(($uptime - $pstat->{starttime})/$cpuinfo->{user_hz});
2252
2253         if ($pstat->{vsize}) {
2254             $d->{mem} = int(($pstat->{rss}/$pstat->{vsize})*$d->{maxmem});
2255         }
2256
2257         my $old = $last_proc_pid_stat->{$pid};
2258         if (!$old) {
2259             $last_proc_pid_stat->{$pid} = {
2260                 time => $ctime,
2261                 used => $used,
2262                 cpu => 0,
2263             };
2264             next;
2265         }
2266
2267         my $dtime = ($ctime -  $old->{time}) * $cpucount * $cpuinfo->{user_hz};
2268
2269         if ($dtime > 1000) {
2270             my $dutime = $used -  $old->{used};
2271
2272             $d->{cpu} = (($dutime/$dtime)* $cpucount) / $d->{cpus};
2273             $last_proc_pid_stat->{$pid} = {
2274                 time => $ctime,
2275                 used => $used,
2276                 cpu => $d->{cpu},
2277             };
2278         } else {
2279             $d->{cpu} = $old->{cpu};
2280         }
2281     }
2282
2283     return $res if !$full;
2284
2285     my $qmpclient = PVE::QMPClient->new();
2286
2287     my $ballooncb = sub {
2288         my ($vmid, $resp) = @_;
2289
2290         my $info = $resp->{'return'};
2291         return if !$info->{max_mem};
2292
2293         my $d = $res->{$vmid};
2294
2295         # use memory assigned to VM
2296         $d->{maxmem} = $info->{max_mem};
2297         $d->{balloon} = $info->{actual};
2298
2299         if (defined($info->{total_mem}) && defined($info->{free_mem})) {
2300             $d->{mem} = $info->{total_mem} - $info->{free_mem};
2301             $d->{freemem} = $info->{free_mem};
2302         }
2303
2304     };
2305
2306     my $blockstatscb = sub {
2307         my ($vmid, $resp) = @_;
2308         my $data = $resp->{'return'} || [];
2309         my $totalrdbytes = 0;
2310         my $totalwrbytes = 0;
2311         for my $blockstat (@$data) {
2312             $totalrdbytes = $totalrdbytes + $blockstat->{stats}->{rd_bytes};
2313             $totalwrbytes = $totalwrbytes + $blockstat->{stats}->{wr_bytes};
2314         }
2315         $res->{$vmid}->{diskread} = $totalrdbytes;
2316         $res->{$vmid}->{diskwrite} = $totalwrbytes;
2317     };
2318
2319     my $statuscb = sub {
2320         my ($vmid, $resp) = @_;
2321
2322         $qmpclient->queue_cmd($vmid, $blockstatscb, 'query-blockstats');
2323         # this fails if ballon driver is not loaded, so this must be
2324         # the last commnand (following command are aborted if this fails).
2325         $qmpclient->queue_cmd($vmid, $ballooncb, 'query-balloon');
2326
2327         my $status = 'unknown';
2328         if (!defined($status = $resp->{'return'}->{status})) {
2329             warn "unable to get VM status\n";
2330             return;
2331         }
2332
2333         $res->{$vmid}->{qmpstatus} = $resp->{'return'}->{status};
2334     };
2335
2336     foreach my $vmid (keys %$list) {
2337         next if $opt_vmid && ($vmid ne $opt_vmid);
2338         next if !$res->{$vmid}->{pid}; # not running
2339         $qmpclient->queue_cmd($vmid, $statuscb, 'query-status');
2340     }
2341
2342     $qmpclient->queue_execute();
2343
2344     foreach my $vmid (keys %$list) {
2345         next if $opt_vmid && ($vmid ne $opt_vmid);
2346         $res->{$vmid}->{qmpstatus} = $res->{$vmid}->{status} if !$res->{$vmid}->{qmpstatus};
2347     }
2348
2349     return $res;
2350 }
2351
2352 sub foreach_drive {
2353     my ($conf, $func) = @_;
2354
2355     foreach my $ds (keys %$conf) {
2356         next if !valid_drivename($ds);
2357
2358         my $drive = parse_drive($ds, $conf->{$ds});
2359         next if !$drive;
2360
2361         &$func($ds, $drive);
2362     }
2363 }
2364
2365 sub foreach_volid {
2366     my ($conf, $func) = @_;
2367
2368     my $volhash = {};
2369
2370     my $test_volid = sub {
2371         my ($volid, $is_cdrom) = @_;
2372
2373         return if !$volid;
2374
2375         $volhash->{$volid} = $is_cdrom || 0;
2376     };
2377
2378     foreach_drive($conf, sub {
2379         my ($ds, $drive) = @_;
2380         &$test_volid($drive->{file}, drive_is_cdrom($drive));
2381     });
2382
2383     foreach my $snapname (keys %{$conf->{snapshots}}) {
2384         my $snap = $conf->{snapshots}->{$snapname};
2385         &$test_volid($snap->{vmstate}, 0);
2386         foreach_drive($snap, sub {
2387             my ($ds, $drive) = @_;
2388             &$test_volid($drive->{file}, drive_is_cdrom($drive));
2389         });
2390     }
2391
2392     foreach my $volid (keys %$volhash) {
2393         &$func($volid, $volhash->{$volid});
2394     }
2395 }
2396
2397 sub vga_conf_has_spice {
2398     my ($vga) = @_;
2399
2400     return 0 if !$vga || $vga !~ m/^qxl([234])?$/;
2401
2402     return $1 || 1;
2403 }
2404
2405 sub config_to_command {
2406     my ($storecfg, $vmid, $conf, $defaults, $forcemachine) = @_;
2407
2408     my $cmd = [];
2409     my $globalFlags = [];
2410     my $machineFlags = [];
2411     my $rtcFlags = [];
2412     my $cpuFlags = [];
2413     my $devices = [];
2414     my $pciaddr = '';
2415     my $bridges = {};
2416     my $kvmver = kvm_user_version();
2417     my $vernum = 0; # unknown
2418     if ($kvmver =~ m/^(\d+)\.(\d+)$/) {
2419         $vernum = $1*1000000+$2*1000;
2420     } elsif ($kvmver =~ m/^(\d+)\.(\d+)\.(\d+)$/) {
2421         $vernum = $1*1000000+$2*1000+$3;
2422     }
2423
2424     die "detected old qemu-kvm binary ($kvmver)\n" if $vernum < 15000;
2425
2426     my $have_ovz = -f '/proc/vz/vestat';
2427
2428     my $q35 = machine_type_is_q35($conf);
2429
2430     push @$cmd, '/usr/bin/kvm';
2431
2432     push @$cmd, '-id', $vmid;
2433
2434     my $use_virtio = 0;
2435
2436     my $qmpsocket = qmp_socket($vmid);
2437     push @$cmd, '-chardev', "socket,id=qmp,path=$qmpsocket,server,nowait";
2438     push @$cmd, '-mon', "chardev=qmp,mode=control";
2439
2440     my $socket = vnc_socket($vmid);
2441     push @$cmd,  '-vnc', "unix:$socket,x509,password";
2442
2443     push @$cmd, '-pidfile' , pidfile_name($vmid);
2444
2445     push @$cmd, '-daemonize';
2446
2447     if ($conf->{smbios1}) {
2448         push @$cmd, '-smbios', "type=1,$conf->{smbios1}";
2449     }
2450
2451     push @$cmd, '-object', "iothread,id=iothread0" if $conf->{iothread};
2452
2453     if ($q35) {
2454         # the q35 chipset support native usb2, so we enable usb controller
2455         # by default for this machine type
2456         push @$devices, '-readconfig', '/usr/share/qemu-server/pve-q35.cfg';
2457     } else {
2458         $pciaddr = print_pci_addr("piix3", $bridges);
2459         push @$devices, '-device', "piix3-usb-uhci,id=uhci$pciaddr.0x2";
2460
2461         my $use_usb2 = 0;
2462         for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
2463             next if !$conf->{"usb$i"};
2464             $use_usb2 = 1;
2465         }
2466         # include usb device config
2467         push @$devices, '-readconfig', '/usr/share/qemu-server/pve-usb.cfg' if $use_usb2;
2468     }
2469
2470     my $vga = $conf->{vga};
2471
2472     my $qxlnum = vga_conf_has_spice($vga);
2473     $vga = 'qxl' if $qxlnum;
2474
2475     if (!$vga) {
2476         if ($conf->{ostype} && ($conf->{ostype} eq 'win8' ||
2477                                 $conf->{ostype} eq 'win7' ||
2478                                 $conf->{ostype} eq 'w2k8')) {
2479             $vga = 'std';
2480         } else {
2481             $vga = 'cirrus';
2482         }
2483     }
2484
2485     # enable absolute mouse coordinates (needed by vnc)
2486     my $tablet;
2487     if (defined($conf->{tablet})) {
2488         $tablet = $conf->{tablet};
2489     } else {
2490         $tablet = $defaults->{tablet};
2491         $tablet = 0 if $qxlnum; # disable for spice because it is not needed
2492         $tablet = 0 if $vga =~ m/^serial\d+$/; # disable if we use serial terminal (no vga card)
2493     }
2494
2495     push @$devices, '-device', print_tabletdevice_full($conf) if $tablet;
2496
2497     # host pci devices
2498     for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
2499         my $d = parse_hostpci($conf->{"hostpci$i"});
2500         next if !$d;
2501
2502         my $pcie = $d->{pcie};
2503         if($pcie){
2504             die "q35 machine model is not enabled" if !$q35;
2505             $pciaddr = print_pcie_addr("hostpci$i");
2506         }else{
2507             $pciaddr = print_pci_addr("hostpci$i", $bridges);
2508         }
2509
2510         my $rombar = $d->{rombar} && $d->{rombar} eq 'off' ? ",rombar=0" : "";
2511         my $driver = $d->{driver} && $d->{driver} eq 'vfio' ? "vfio-pci" : "pci-assign";
2512         my $xvga = $d->{'x-vga'} && $d->{'x-vga'} eq 'on' ? ",x-vga=on" : "";
2513         if ($xvga && $xvga ne '') {
2514             push @$cpuFlags, 'kvm=off';
2515             $vga = 'none';
2516         }
2517         $driver = "vfio-pci" if $xvga ne '';
2518         my $pcidevices = $d->{pciid};
2519         my $multifunction = 1 if @$pcidevices > 1;
2520
2521         my $j=0;
2522         foreach my $pcidevice (@$pcidevices) {
2523
2524             my $id = "hostpci$i";
2525             $id .= ".$j" if $multifunction;
2526             my $addr = $pciaddr;
2527             $addr .= ".$j" if $multifunction;
2528             my $devicestr = "$driver,host=$pcidevice->{id}.$pcidevice->{function},id=$id$addr";
2529
2530             if($j == 0){
2531                 $devicestr .= "$rombar$xvga";
2532                 $devicestr .= ",multifunction=on" if $multifunction;
2533             }
2534
2535             push @$devices, '-device', $devicestr;
2536             $j++;
2537         }
2538     }
2539
2540     # usb devices
2541     for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
2542         my $d = parse_usb_device($conf->{"usb$i"});
2543         next if !$d;
2544         if ($d->{vendorid} && $d->{productid}) {
2545             push @$devices, '-device', "usb-host,vendorid=0x$d->{vendorid},productid=0x$d->{productid}";
2546         } elsif (defined($d->{hostbus}) && defined($d->{hostport})) {
2547             push @$devices, '-device', "usb-host,hostbus=$d->{hostbus},hostport=$d->{hostport}";
2548         } elsif ($d->{spice}) {
2549             # usb redir support for spice
2550             push @$devices, '-chardev', "spicevmc,id=usbredirchardev$i,name=usbredir";
2551             push @$devices, '-device', "usb-redir,chardev=usbredirchardev$i,id=usbredirdev$i,bus=ehci.0";
2552         }
2553     }
2554
2555     # serial devices
2556     for (my $i = 0; $i < $MAX_SERIAL_PORTS; $i++)  {
2557         if (my $path = $conf->{"serial$i"}) {
2558             if ($path eq 'socket') {
2559                 my $socket = "/var/run/qemu-server/${vmid}.serial$i";
2560                 push @$devices, '-chardev', "socket,id=serial$i,path=$socket,server,nowait";
2561                 push @$devices, '-device', "isa-serial,chardev=serial$i";
2562             } else {
2563                 die "no such serial device\n" if ! -c $path;
2564                 push @$devices, '-chardev', "tty,id=serial$i,path=$path";
2565                 push @$devices, '-device', "isa-serial,chardev=serial$i";
2566             }
2567         }
2568     }
2569
2570     # parallel devices
2571     for (my $i = 0; $i < $MAX_PARALLEL_PORTS; $i++)  {
2572         if (my $path = $conf->{"parallel$i"}) {
2573             die "no such parallel device\n" if ! -c $path;
2574             my $devtype = $path =~ m!^/dev/usb/lp! ? 'tty' : 'parport';
2575             push @$devices, '-chardev', "$devtype,id=parallel$i,path=$path";
2576             push @$devices, '-device', "isa-parallel,chardev=parallel$i";
2577         }
2578     }
2579
2580     my $vmname = $conf->{name} || "vm$vmid";
2581
2582     push @$cmd, '-name', $vmname;
2583
2584     my $sockets = 1;
2585     $sockets = $conf->{smp} if $conf->{smp}; # old style - no longer iused
2586     $sockets = $conf->{sockets} if  $conf->{sockets};
2587
2588     my $cores = $conf->{cores} || 1;
2589     my $maxcpus = $conf->{maxcpus} if $conf->{maxcpus};
2590
2591     if ($maxcpus) {
2592         push @$cmd, '-smp', "cpus=$cores,maxcpus=$maxcpus";
2593     } else {
2594         push @$cmd, '-smp', "sockets=$sockets,cores=$cores";
2595     }
2596
2597     push @$cmd, '-nodefaults';
2598
2599     my $bootorder = $conf->{boot} || $confdesc->{boot}->{default};
2600
2601     my $bootindex_hash = {};
2602     my $i = 1;
2603     foreach my $o (split(//, $bootorder)) {
2604         $bootindex_hash->{$o} = $i*100;
2605         $i++;
2606     }
2607
2608     push @$cmd, '-boot', "menu=on";
2609
2610     push @$cmd, '-no-acpi' if defined($conf->{acpi}) && $conf->{acpi} == 0;
2611
2612     push @$cmd, '-no-reboot' if  defined($conf->{reboot}) && $conf->{reboot} == 0;
2613
2614     push @$cmd, '-vga', $vga if $vga && $vga !~ m/^serial\d+$/; # for kvm 77 and later
2615
2616     # time drift fix
2617     my $tdf = defined($conf->{tdf}) ? $conf->{tdf} : $defaults->{tdf};
2618
2619     my $nokvm = defined($conf->{kvm}) && $conf->{kvm} == 0 ? 1 : 0;
2620     my $useLocaltime = $conf->{localtime};
2621
2622     if (my $ost = $conf->{ostype}) {
2623         # other, wxp, w2k, w2k3, w2k8, wvista, win7, win8, l24, l26, solaris
2624
2625         if ($ost =~ m/^w/) { # windows
2626             $useLocaltime = 1 if !defined($conf->{localtime});
2627
2628             # use time drift fix when acpi is enabled
2629             if (!(defined($conf->{acpi}) && $conf->{acpi} == 0)) {
2630                 $tdf = 1 if !defined($conf->{tdf});
2631             }
2632         }
2633
2634         if ($ost eq 'win7' || $ost eq 'win8' || $ost eq 'w2k8' ||
2635             $ost eq 'wvista') {
2636             push @$globalFlags, 'kvm-pit.lost_tick_policy=discard';
2637             push @$cmd, '-no-hpet';
2638             #push @$cpuFlags , 'hv_vapic" if !$nokvm;  #fixme, my win2008R2 hang at boot with this
2639             push @$cpuFlags , 'hv_spinlocks=0xffff' if !$nokvm;
2640         }
2641
2642         if ($ost eq 'win7' || $ost eq 'win8') {
2643             push @$cpuFlags , 'hv_relaxed' if !$nokvm;
2644         }
2645     }
2646
2647     push @$rtcFlags, 'driftfix=slew' if $tdf;
2648
2649     if ($nokvm) {
2650         push @$machineFlags, 'accel=tcg';
2651     } else {
2652         die "No accelerator found!\n" if !$cpuinfo->{hvm};
2653     }
2654
2655     my $machine_type = $forcemachine || $conf->{machine};
2656     if ($machine_type) {
2657         push @$machineFlags, "type=${machine_type}";
2658     }
2659
2660     if ($conf->{startdate}) {
2661         push @$rtcFlags, "base=$conf->{startdate}";
2662     } elsif ($useLocaltime) {
2663         push @$rtcFlags, 'base=localtime';
2664     }
2665
2666     my $cpu = $nokvm ? "qemu64" : "kvm64";
2667     $cpu = $conf->{cpu} if $conf->{cpu};
2668
2669     push @$cpuFlags , '+lahf_lm' if $cpu eq 'kvm64';
2670
2671     push @$cpuFlags , '+x2apic' if !$nokvm && $conf->{ostype} ne 'solaris';
2672
2673     push @$cpuFlags , '-x2apic' if $conf->{ostype} eq 'solaris';
2674
2675     push @$cpuFlags, '+sep' if $cpu eq 'kvm64' || $cpu eq 'kvm32';
2676
2677     $cpu .= "," . join(',', @$cpuFlags) if scalar(@$cpuFlags);
2678
2679     # Note: enforce needs kernel 3.10, so we do not use it for now
2680     # push @$cmd, '-cpu', "$cpu,enforce";
2681     push @$cmd, '-cpu', $cpu;
2682
2683     push @$cmd, '-S' if $conf->{freeze};
2684
2685     # set keyboard layout
2686     my $kb = $conf->{keyboard} || $defaults->{keyboard};
2687     push @$cmd, '-k', $kb if $kb;
2688
2689     # enable sound
2690     #my $soundhw = $conf->{soundhw} || $defaults->{soundhw};
2691     #push @$cmd, '-soundhw', 'es1370';
2692     #push @$cmd, '-soundhw', $soundhw if $soundhw;
2693
2694     if($conf->{agent}) {
2695         my $qgasocket = qga_socket($vmid);
2696         my $pciaddr = print_pci_addr("qga0", $bridges);
2697         push @$devices, '-chardev', "socket,path=$qgasocket,server,nowait,id=qga0";
2698         push @$devices, '-device', "virtio-serial,id=qga0$pciaddr";
2699         push @$devices, '-device', 'virtserialport,chardev=qga0,name=org.qemu.guest_agent.0';
2700     }
2701
2702     my $spice_port;
2703
2704     if ($qxlnum) {
2705         if ($qxlnum > 1) {
2706             if ($conf->{ostype} && $conf->{ostype} =~ m/^w/){
2707                 for(my $i = 1; $i < $qxlnum; $i++){
2708                     my $pciaddr = print_pci_addr("vga$i", $bridges);
2709                     push @$cmd, '-device', "qxl,id=vga$i,ram_size=67108864,vram_size=33554432$pciaddr";
2710                 }
2711             } else {
2712                 # assume other OS works like Linux
2713                 push @$cmd, '-global', 'qxl-vga.ram_size=134217728';
2714                 push @$cmd, '-global', 'qxl-vga.vram_size=67108864';
2715             }
2716         }
2717
2718         my $pciaddr = print_pci_addr("spice", $bridges);
2719
2720         $spice_port = PVE::Tools::next_spice_port();
2721
2722         push @$devices, '-spice', "tls-port=${spice_port},addr=127.0.0.1,tls-ciphers=DES-CBC3-SHA,seamless-migration=on";
2723
2724         push @$devices, '-device', "virtio-serial,id=spice$pciaddr";
2725         push @$devices, '-chardev', "spicevmc,id=vdagent,name=vdagent";
2726         push @$devices, '-device', "virtserialport,chardev=vdagent,name=com.redhat.spice.0";
2727     }
2728
2729     # enable balloon by default, unless explicitly disabled
2730     if (!defined($conf->{balloon}) || $conf->{balloon}) {
2731         $pciaddr = print_pci_addr("balloon0", $bridges);
2732         push @$devices, '-device', "virtio-balloon-pci,id=balloon0$pciaddr";
2733     }
2734
2735     if ($conf->{watchdog}) {
2736         my $wdopts = parse_watchdog($conf->{watchdog});
2737         $pciaddr = print_pci_addr("watchdog", $bridges);
2738         my $watchdog = $wdopts->{model} || 'i6300esb';
2739         push @$devices, '-device', "$watchdog$pciaddr";
2740         push @$devices, '-watchdog-action', $wdopts->{action} if $wdopts->{action};
2741     }
2742
2743     my $vollist = [];
2744     my $scsicontroller = {};
2745     my $ahcicontroller = {};
2746     my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : $defaults->{scsihw};
2747
2748     # Add iscsi initiator name if available
2749     if (my $initiator = get_initiator_name()) {
2750         push @$devices, '-iscsi', "initiator-name=$initiator";
2751     }
2752
2753     foreach_drive($conf, sub {
2754         my ($ds, $drive) = @_;
2755
2756         if (PVE::Storage::parse_volume_id($drive->{file}, 1)) {
2757             push @$vollist, $drive->{file};
2758         }
2759
2760         $use_virtio = 1 if $ds =~ m/^virtio/;
2761
2762         if (drive_is_cdrom ($drive)) {
2763             if ($bootindex_hash->{d}) {
2764                 $drive->{bootindex} = $bootindex_hash->{d};
2765                 $bootindex_hash->{d} += 1;
2766             }
2767         } else {
2768             if ($bootindex_hash->{c}) {
2769                 $drive->{bootindex} = $bootindex_hash->{c} if $conf->{bootdisk} && ($conf->{bootdisk} eq $ds);
2770                 $bootindex_hash->{c} += 1;
2771             }
2772         }
2773
2774         if ($drive->{interface} eq 'scsi') {
2775
2776             my $maxdev = ($scsihw !~ m/^lsi/) ? 256 : 7;
2777             my $controller = int($drive->{index} / $maxdev);
2778             $pciaddr = print_pci_addr("scsihw$controller", $bridges);
2779             push @$devices, '-device', "$scsihw,id=scsihw$controller$pciaddr" if !$scsicontroller->{$controller};
2780             $scsicontroller->{$controller}=1;
2781         }
2782
2783         if ($drive->{interface} eq 'sata') {
2784            my $controller = int($drive->{index} / $MAX_SATA_DISKS);
2785            $pciaddr = print_pci_addr("ahci$controller", $bridges);
2786            push @$devices, '-device', "ahci,id=ahci$controller,multifunction=on$pciaddr" if !$ahcicontroller->{$controller};
2787            $ahcicontroller->{$controller}=1;
2788         }
2789
2790         my $drive_cmd = print_drive_full($storecfg, $vmid, $drive);
2791         push @$devices, '-drive',$drive_cmd;
2792         push @$devices, '-device', print_drivedevice_full($storecfg, $conf, $vmid, $drive, $bridges);
2793     });
2794
2795     push @$cmd, '-m', $conf->{memory} || $defaults->{memory};
2796
2797     for (my $i = 0; $i < $MAX_NETS; $i++) {
2798          next if !$conf->{"net$i"};
2799          my $d = parse_net($conf->{"net$i"});
2800          next if !$d;
2801
2802          $use_virtio = 1 if $d->{model} eq 'virtio';
2803
2804          if ($bootindex_hash->{n}) {
2805             $d->{bootindex} = $bootindex_hash->{n};
2806             $bootindex_hash->{n} += 1;
2807          }
2808
2809          my $netdevfull = print_netdev_full($vmid,$conf,$d,"net$i");
2810          push @$devices, '-netdev', $netdevfull;
2811
2812          my $netdevicefull = print_netdevice_full($vmid,$conf,$d,"net$i",$bridges);
2813          push @$devices, '-device', $netdevicefull;
2814     }
2815
2816     if (!$q35) {
2817         # add pci bridges
2818         while (my ($k, $v) = each %$bridges) {
2819             $pciaddr = print_pci_addr("pci.$k");
2820             unshift @$devices, '-device', "pci-bridge,id=pci.$k,chassis_nr=$k$pciaddr" if $k > 0;
2821         }
2822     }
2823
2824     # hack: virtio with fairsched is unreliable, so we do not use fairsched
2825     # when the VM uses virtio devices.
2826     if (!$use_virtio && $have_ovz) {
2827
2828         my $cpuunits = defined($conf->{cpuunits}) ?
2829             $conf->{cpuunits} : $defaults->{cpuunits};
2830
2831         push @$cmd, '-cpuunits', $cpuunits if $cpuunits;
2832
2833         # fixme: cpulimit is currently ignored
2834         #push @$cmd, '-cpulimit', $conf->{cpulimit} if $conf->{cpulimit};
2835     }
2836
2837     # add custom args
2838     if ($conf->{args}) {
2839         my $aa = PVE::Tools::split_args($conf->{args});
2840         push @$cmd, @$aa;
2841     }
2842
2843     push @$cmd, @$devices;
2844     push @$cmd, '-rtc', join(',', @$rtcFlags)
2845         if scalar(@$rtcFlags);
2846     push @$cmd, '-machine', join(',', @$machineFlags)
2847         if scalar(@$machineFlags);
2848     push @$cmd, '-global', join(',', @$globalFlags)
2849         if scalar(@$globalFlags);
2850
2851     return wantarray ? ($cmd, $vollist, $spice_port) : $cmd;
2852 }
2853
2854 sub vnc_socket {
2855     my ($vmid) = @_;
2856     return "${var_run_tmpdir}/$vmid.vnc";
2857 }
2858
2859 sub spice_port {
2860     my ($vmid) = @_;
2861
2862     my $res = vm_mon_cmd($vmid, 'query-spice');
2863
2864     return $res->{'tls-port'} || $res->{'port'} || die "no spice port\n";
2865 }
2866
2867 sub qmp_socket {
2868     my ($vmid) = @_;
2869     return "${var_run_tmpdir}/$vmid.qmp";
2870 }
2871
2872 sub qga_socket {
2873     my ($vmid) = @_;
2874     return "${var_run_tmpdir}/$vmid.qga";
2875 }
2876
2877 sub pidfile_name {
2878     my ($vmid) = @_;
2879     return "${var_run_tmpdir}/$vmid.pid";
2880 }
2881
2882 sub vm_devices_list {
2883     my ($vmid) = @_;
2884
2885     my $res = vm_mon_cmd($vmid, 'query-pci');
2886
2887     my $devices = {};
2888     foreach my $pcibus (@$res) {
2889         foreach my $device (@{$pcibus->{devices}}) {
2890             next if !$device->{'qdev_id'};
2891             $devices->{$device->{'qdev_id'}} = 1;
2892         }
2893     }
2894
2895     my $resblock = vm_mon_cmd($vmid, 'query-block');
2896     foreach my $block (@$resblock) {
2897         if($block->{device} =~ m/^drive-(\S+)/){
2898                 $devices->{$1} = 1;
2899         }
2900     }
2901
2902     return $devices;
2903 }
2904
2905 sub vm_deviceplug {
2906     my ($storecfg, $conf, $vmid, $deviceid, $device) = @_;
2907
2908     return 1 if !check_running($vmid);
2909
2910     my $q35 = machine_type_is_q35($conf);
2911
2912     if ($deviceid eq 'tablet') {
2913         qemu_deviceadd($vmid, print_tabletdevice_full($conf));
2914         return 1;
2915     }
2916
2917     return 1 if !$conf->{hotplug};
2918
2919     my $devices_list = vm_devices_list($vmid);
2920     return 1 if defined($devices_list->{$deviceid});
2921
2922     qemu_bridgeadd($storecfg, $conf, $vmid, $deviceid); #add bridge if we need it for the device
2923
2924     if ($deviceid =~ m/^(virtio)(\d+)$/) {
2925         return undef if !qemu_driveadd($storecfg, $vmid, $device);
2926         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
2927         qemu_deviceadd($vmid, $devicefull);
2928         if(!qemu_deviceaddverify($vmid, $deviceid)) {
2929            qemu_drivedel($vmid, $deviceid);
2930            return undef;
2931         }
2932     }
2933
2934     if ($deviceid =~ m/^(scsihw)(\d+)$/) {
2935         my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : "lsi";
2936         my $pciaddr = print_pci_addr($deviceid);
2937         my $devicefull = "$scsihw,id=$deviceid$pciaddr";
2938         qemu_deviceadd($vmid, $devicefull);
2939         return undef if(!qemu_deviceaddverify($vmid, $deviceid));
2940     }
2941
2942     if ($deviceid =~ m/^(scsi)(\d+)$/) {
2943         return undef if !qemu_findorcreatescsihw($storecfg,$conf, $vmid, $device);
2944         return undef if !qemu_driveadd($storecfg, $vmid, $device);
2945         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
2946         if(!qemu_deviceadd($vmid, $devicefull)) {
2947            qemu_drivedel($vmid, $deviceid);
2948            return undef;
2949         }
2950     }
2951
2952     if ($deviceid =~ m/^(net)(\d+)$/) {
2953         return undef if !qemu_netdevadd($vmid, $conf, $device, $deviceid);
2954         my $netdevicefull = print_netdevice_full($vmid, $conf, $device, $deviceid);
2955         qemu_deviceadd($vmid, $netdevicefull);
2956         if(!qemu_deviceaddverify($vmid, $deviceid)) {
2957            qemu_netdevdel($vmid, $deviceid);
2958            return undef;
2959         }
2960     }
2961
2962
2963     if (!$q35 && $deviceid =~ m/^(pci\.)(\d+)$/) {
2964         my $bridgeid = $2;
2965         my $pciaddr = print_pci_addr($deviceid);
2966         my $devicefull = "pci-bridge,id=pci.$bridgeid,chassis_nr=$bridgeid$pciaddr";
2967         qemu_deviceadd($vmid, $devicefull);
2968         return undef if !qemu_deviceaddverify($vmid, $deviceid);
2969     }
2970
2971     return 1;
2972 }
2973
2974 sub vm_deviceunplug {
2975     my ($vmid, $conf, $deviceid) = @_;
2976
2977     return 1 if !check_running ($vmid);
2978
2979     if ($deviceid eq 'tablet') {
2980         qemu_devicedel($vmid, $deviceid);
2981         return 1;
2982     }
2983
2984     return 1 if !$conf->{hotplug};
2985
2986     my $devices_list = vm_devices_list($vmid);
2987     return 1 if !defined($devices_list->{$deviceid});
2988
2989     die "can't unplug bootdisk" if $conf->{bootdisk} && $conf->{bootdisk} eq $deviceid;
2990
2991     if ($deviceid =~ m/^(virtio)(\d+)$/) {
2992         qemu_devicedel($vmid, $deviceid);
2993         return undef if !qemu_devicedelverify($vmid, $deviceid);
2994         return undef if !qemu_drivedel($vmid, $deviceid);
2995     }
2996
2997     if ($deviceid =~ m/^(lsi)(\d+)$/) {
2998         return undef if !qemu_devicedel($vmid, $deviceid);
2999     }
3000
3001     if ($deviceid =~ m/^(scsi)(\d+)$/) {
3002         return undef if !qemu_devicedel($vmid, $deviceid);
3003         return undef if !qemu_drivedel($vmid, $deviceid);
3004     }
3005
3006     if ($deviceid =~ m/^(net)(\d+)$/) {
3007         qemu_devicedel($vmid, $deviceid);
3008         return undef if !qemu_devicedelverify($vmid, $deviceid);
3009         return undef if !qemu_netdevdel($vmid, $deviceid);
3010     }
3011
3012     return 1;
3013 }
3014
3015 sub qemu_deviceadd {
3016     my ($vmid, $devicefull) = @_;
3017
3018     $devicefull = "driver=".$devicefull;
3019     my %options =  split(/[=,]/, $devicefull);
3020
3021     vm_mon_cmd($vmid, "device_add" , %options);
3022     return 1;
3023 }
3024
3025 sub qemu_devicedel {
3026     my($vmid, $deviceid) = @_;
3027     my $ret = vm_mon_cmd($vmid, "device_del", id => $deviceid);
3028     return 1;
3029 }
3030
3031 sub qemu_driveadd {
3032     my($storecfg, $vmid, $device) = @_;
3033
3034     my $drive = print_drive_full($storecfg, $vmid, $device);
3035     my $ret = vm_human_monitor_command($vmid, "drive_add auto $drive");
3036     # If the command succeeds qemu prints: "OK"
3037     if ($ret !~ m/OK/s) {
3038         syslog("err", "adding drive failed: $ret");
3039         return undef;
3040     }
3041     return 1;
3042 }
3043
3044 sub qemu_drivedel {
3045     my($vmid, $deviceid) = @_;
3046
3047     my $ret = vm_human_monitor_command($vmid, "drive_del drive-$deviceid");
3048     $ret =~ s/^\s+//;
3049     if ($ret =~ m/Device \'.*?\' not found/s) {
3050         # NB: device not found errors mean the drive was auto-deleted and we ignore the error
3051     }
3052     elsif ($ret ne "") {
3053       syslog("err", "deleting drive $deviceid failed : $ret");
3054       return undef;
3055     }
3056     return 1;
3057 }
3058
3059 sub qemu_deviceaddverify {
3060     my ($vmid,$deviceid) = @_;
3061
3062     for (my $i = 0; $i <= 5; $i++) {
3063          my $devices_list = vm_devices_list($vmid);
3064          return 1 if defined($devices_list->{$deviceid});
3065          sleep 1;
3066     }
3067     syslog("err", "error on hotplug device $deviceid");
3068     return undef;
3069 }
3070
3071
3072 sub qemu_devicedelverify {
3073     my ($vmid,$deviceid) = @_;
3074
3075     #need to verify the device is correctly remove as device_del is async and empty return is not reliable
3076     for (my $i = 0; $i <= 5; $i++) {
3077          my $devices_list = vm_devices_list($vmid);
3078          return 1 if !defined($devices_list->{$deviceid});
3079          sleep 1;
3080     }
3081     syslog("err", "error on hot-unplugging device $deviceid");
3082     return undef;
3083 }
3084
3085 sub qemu_findorcreatescsihw {
3086     my ($storecfg, $conf, $vmid, $device) = @_;
3087
3088     my $maxdev = ($conf->{scsihw} && ($conf->{scsihw} !~ m/^lsi/)) ? 256 : 7;
3089     my $controller = int($device->{index} / $maxdev);
3090     my $scsihwid="scsihw$controller";
3091     my $devices_list = vm_devices_list($vmid);
3092
3093     if(!defined($devices_list->{$scsihwid})) {
3094        return undef if !vm_deviceplug($storecfg, $conf, $vmid, $scsihwid);
3095     }
3096     return 1;
3097 }
3098
3099 sub qemu_bridgeadd {
3100     my ($storecfg, $conf, $vmid, $device) = @_;
3101
3102     my $bridges = {};
3103     my $bridgeid = undef;
3104     print_pci_addr($device, $bridges);
3105
3106     while (my ($k, $v) = each %$bridges) {
3107         $bridgeid = $k;
3108     }
3109     return if !$bridgeid || $bridgeid < 1;
3110     my $bridge = "pci.$bridgeid";
3111     my $devices_list = vm_devices_list($vmid);
3112
3113     if(!defined($devices_list->{$bridge})) {
3114         return undef if !vm_deviceplug($storecfg, $conf, $vmid, $bridge);
3115     }
3116     return 1;
3117 }
3118
3119 sub qemu_netdevadd {
3120     my ($vmid, $conf, $device, $deviceid) = @_;
3121
3122     my $netdev = print_netdev_full($vmid, $conf, $device, $deviceid);
3123     my %options =  split(/[=,]/, $netdev);
3124
3125     vm_mon_cmd($vmid, "netdev_add",  %options);
3126     return 1;
3127 }
3128
3129 sub qemu_netdevdel {
3130     my ($vmid, $deviceid) = @_;
3131
3132     vm_mon_cmd($vmid, "netdev_del", id => $deviceid);
3133     return 1;
3134 }
3135
3136 sub qemu_cpu_hotplug {
3137     my ($vmid, $conf, $cores) = @_;
3138
3139     die "new cores config is not defined" if !$cores;
3140     die "you can't add more cores than maxcpus"
3141         if $conf->{maxcpus} && ($cores > $conf->{maxcpus});
3142     return if !check_running($vmid);
3143
3144     my $currentcores = $conf->{cores} if $conf->{cores};
3145     die "current cores is not defined" if !$currentcores;
3146     die "maxcpus is not defined" if !$conf->{maxcpus};
3147     raise_param_exc({ 'cores' => "online cpu unplug is not yet possible" })
3148         if($cores < $currentcores);
3149
3150     my $currentrunningcores = vm_mon_cmd($vmid, "query-cpus");
3151     raise_param_exc({ 'cores' => "cores number if running vm is different than configuration" })
3152         if scalar (@{$currentrunningcores}) != $currentcores;
3153
3154     for(my $i = $currentcores; $i < $cores; $i++) {
3155         vm_mon_cmd($vmid, "cpu-add", id => int($i));
3156     }
3157 }
3158
3159 sub qemu_block_set_io_throttle {
3160     my ($vmid, $deviceid, $bps, $bps_rd, $bps_wr, $iops, $iops_rd, $iops_wr) = @_;
3161
3162     return if !check_running($vmid) ;
3163
3164     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($iops_wr));
3165
3166 }
3167
3168 # old code, only used to shutdown old VM after update
3169 sub __read_avail {
3170     my ($fh, $timeout) = @_;
3171
3172     my $sel = new IO::Select;
3173     $sel->add($fh);
3174
3175     my $res = '';
3176     my $buf;
3177
3178     my @ready;
3179     while (scalar (@ready = $sel->can_read($timeout))) {
3180         my $count;
3181         if ($count = $fh->sysread($buf, 8192)) {
3182             if ($buf =~ /^(.*)\(qemu\) $/s) {
3183                 $res .= $1;
3184                 last;
3185             } else {
3186                 $res .= $buf;
3187             }
3188         } else {
3189             if (!defined($count)) {
3190                 die "$!\n";
3191             }
3192             last;
3193         }
3194     }
3195
3196     die "monitor read timeout\n" if !scalar(@ready);
3197
3198     return $res;
3199 }
3200
3201 # old code, only used to shutdown old VM after update
3202 sub vm_monitor_command {
3203     my ($vmid, $cmdstr, $nocheck) = @_;
3204
3205     my $res;
3206
3207     eval {
3208         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
3209
3210         my $sname = "${var_run_tmpdir}/$vmid.mon";
3211
3212         my $sock = IO::Socket::UNIX->new( Peer => $sname ) ||
3213             die "unable to connect to VM $vmid socket - $!\n";
3214
3215         my $timeout = 3;
3216
3217         # hack: migrate sometime blocks the monitor (when migrate_downtime
3218         # is set)
3219         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
3220             $timeout = 60*60; # 1 hour
3221         }
3222
3223         # read banner;
3224         my $data = __read_avail($sock, $timeout);
3225
3226         if ($data !~ m/^QEMU\s+(\S+)\s+monitor\s/) {
3227             die "got unexpected qemu monitor banner\n";
3228         }
3229
3230         my $sel = new IO::Select;
3231         $sel->add($sock);
3232
3233         if (!scalar(my @ready = $sel->can_write($timeout))) {
3234             die "monitor write error - timeout";
3235         }
3236
3237         my $fullcmd = "$cmdstr\r";
3238
3239         # syslog('info', "VM $vmid monitor command: $cmdstr");
3240
3241         my $b;
3242         if (!($b = $sock->syswrite($fullcmd)) || ($b != length($fullcmd))) {
3243             die "monitor write error - $!";
3244         }
3245
3246         return if ($cmdstr eq 'q') || ($cmdstr eq 'quit');
3247
3248         $timeout = 20;
3249
3250         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
3251             $timeout = 60*60; # 1 hour
3252         } elsif ($cmdstr =~ m/^(eject|change)/) {
3253             $timeout = 60; # note: cdrom mount command is slow
3254         }
3255         if ($res = __read_avail($sock, $timeout)) {
3256
3257             my @lines = split("\r?\n", $res);
3258
3259             shift @lines if $lines[0] !~ m/^unknown command/; # skip echo
3260
3261             $res = join("\n", @lines);
3262             $res .= "\n";
3263         }
3264     };
3265
3266     my $err = $@;
3267
3268     if ($err) {
3269         syslog("err", "VM $vmid monitor command failed - $err");
3270         die $err;
3271     }
3272
3273     return $res;
3274 }
3275
3276 sub qemu_block_resize {
3277     my ($vmid, $deviceid, $storecfg, $volid, $size) = @_;
3278
3279     my $running = check_running($vmid);
3280
3281     return if !PVE::Storage::volume_resize($storecfg, $volid, $size, $running);
3282
3283     return if !$running;
3284
3285     vm_mon_cmd($vmid, "block_resize", device => $deviceid, size => int($size));
3286
3287 }
3288
3289 sub qemu_volume_snapshot {
3290     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
3291
3292     my $running = check_running($vmid);
3293
3294     return if !PVE::Storage::volume_snapshot($storecfg, $volid, $snap, $running);
3295
3296     return if !$running;
3297
3298     vm_mon_cmd($vmid, "snapshot-drive", device => $deviceid, name => $snap);
3299
3300 }
3301
3302 sub qemu_volume_snapshot_delete {
3303     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
3304
3305     my $running = check_running($vmid);
3306
3307     return if !PVE::Storage::volume_snapshot_delete($storecfg, $volid, $snap, $running);
3308
3309     return if !$running;
3310
3311     vm_mon_cmd($vmid, "delete-drive-snapshot", device => $deviceid, name => $snap);
3312 }
3313
3314 sub qga_freezefs {
3315     my ($vmid) = @_;
3316
3317     #need to impplement call to qemu-ga
3318 }
3319
3320 sub qga_unfreezefs {
3321     my ($vmid) = @_;
3322
3323     #need to impplement call to qemu-ga
3324 }
3325
3326 sub set_migration_caps {
3327     my ($vmid) = @_;
3328
3329     my $cap_ref = [];
3330
3331     my $enabled_cap = {
3332         "auto-converge" => 1,
3333         "xbzrle" => 0,
3334         "x-rdma-pin-all" => 0,
3335         "zero-blocks" => 0,
3336     };
3337
3338     my $supported_capabilities = vm_mon_cmd_nocheck($vmid, "query-migrate-capabilities");
3339
3340     for my $supported_capability (@$supported_capabilities) {
3341         push @$cap_ref, {
3342             capability => $supported_capability->{capability},
3343             state => $enabled_cap->{$supported_capability->{capability}} ? JSON::true : JSON::false,
3344         };
3345     }
3346
3347     vm_mon_cmd_nocheck($vmid, "migrate-set-capabilities", capabilities => $cap_ref);
3348 }
3349
3350 sub vm_start {
3351     my ($storecfg, $vmid, $statefile, $skiplock, $migratedfrom, $paused, $forcemachine, $spice_ticket) = @_;
3352
3353     lock_config($vmid, sub {
3354         my $conf = load_config($vmid, $migratedfrom);
3355
3356         die "you can't start a vm if it's a template\n" if is_template($conf);
3357
3358         check_lock($conf) if !$skiplock;
3359
3360         die "VM $vmid already running\n" if check_running($vmid, undef, $migratedfrom);
3361
3362         my $defaults = load_defaults();
3363
3364         # set environment variable useful inside network script
3365         $ENV{PVE_MIGRATED_FROM} = $migratedfrom if $migratedfrom;
3366
3367         my ($cmd, $vollist, $spice_port) = config_to_command($storecfg, $vmid, $conf, $defaults, $forcemachine);
3368
3369         my $migrate_port = 0;
3370         my $migrate_uri;
3371         if ($statefile) {
3372             if ($statefile eq 'tcp') {
3373                 my $localip = "localhost";
3374                 my $datacenterconf = PVE::Cluster::cfs_read_file('datacenter.cfg');
3375                 if ($datacenterconf->{migration_unsecure}) {
3376                         my $nodename = PVE::INotify::nodename();
3377                         $localip = PVE::Cluster::remote_node_ip($nodename, 1);
3378                 }
3379                 $migrate_port = PVE::Tools::next_migrate_port();
3380                 $migrate_uri = "tcp:${localip}:${migrate_port}";
3381                 push @$cmd, '-incoming', $migrate_uri;
3382                 push @$cmd, '-S';
3383             } else {
3384                 push @$cmd, '-loadstate', $statefile;
3385             }
3386         } elsif ($paused) {
3387             push @$cmd, '-S';
3388         }
3389
3390         # host pci devices
3391         for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
3392           my $d = parse_hostpci($conf->{"hostpci$i"});
3393           next if !$d;
3394           my $pcidevices = $d->{pciid};
3395           foreach my $pcidevice (@$pcidevices) {
3396                 my $pciid = $pcidevice->{id}.".".$pcidevice->{function};
3397
3398                 my $info = pci_device_info("0000:$pciid");
3399                 die "IOMMU not present\n" if !check_iommu_support();
3400                 die "no pci device info for device '$pciid'\n" if !$info;
3401
3402                 if ($d->{driver} && $d->{driver} eq "vfio") {
3403                     die "can't unbind/bind pci group to vfio '$pciid'\n" if !pci_dev_group_bind_to_vfio($pciid);
3404                 } else {
3405                     die "can't unbind/bind to stub pci device '$pciid'\n" if !pci_dev_bind_to_stub($info);
3406                 }
3407
3408                 die "can't reset pci device '$pciid'\n" if $info->{has_fl_reset} and !pci_dev_reset($info);
3409           }
3410         }
3411
3412         PVE::Storage::activate_volumes($storecfg, $vollist);
3413
3414         eval  { run_command($cmd, timeout => $statefile ? undef : 30,
3415                     umask => 0077); };
3416         my $err = $@;
3417         die "start failed: $err" if $err;
3418
3419         print "migration listens on $migrate_uri\n" if $migrate_uri;
3420
3421         if ($statefile && $statefile ne 'tcp')  {
3422             eval { vm_mon_cmd_nocheck($vmid, "cont"); };
3423             warn $@ if $@;
3424         }
3425
3426         if ($migratedfrom) {
3427
3428             eval {
3429                 PVE::QemuServer::set_migration_caps($vmid);
3430             };
3431             warn $@ if $@;
3432
3433             if ($spice_port) {
3434                 print "spice listens on port $spice_port\n";
3435                 if ($spice_ticket) {
3436                     PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "set_password", protocol => 'spice', password => $spice_ticket);
3437                     PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "expire_password", protocol => 'spice', time => "+30");
3438                 }
3439             }
3440
3441         } else {
3442
3443             if (!$statefile && (!defined($conf->{balloon}) || $conf->{balloon})) {
3444                 vm_mon_cmd_nocheck($vmid, "balloon", value => $conf->{balloon}*1024*1024)
3445                     if $conf->{balloon};
3446                 vm_mon_cmd_nocheck($vmid, 'qom-set',
3447                             path => "machine/peripheral/balloon0",
3448                             property => "guest-stats-polling-interval",
3449                             value => 2);
3450             }
3451         }
3452     });
3453 }
3454
3455 sub vm_mon_cmd {
3456     my ($vmid, $execute, %params) = @_;
3457
3458     my $cmd = { execute => $execute, arguments => \%params };
3459     vm_qmp_command($vmid, $cmd);
3460 }
3461
3462 sub vm_mon_cmd_nocheck {
3463     my ($vmid, $execute, %params) = @_;
3464
3465     my $cmd = { execute => $execute, arguments => \%params };
3466     vm_qmp_command($vmid, $cmd, 1);
3467 }
3468
3469 sub vm_qmp_command {
3470     my ($vmid, $cmd, $nocheck) = @_;
3471
3472     my $res;
3473
3474     my $timeout;
3475     if ($cmd->{arguments} && $cmd->{arguments}->{timeout}) {
3476         $timeout = $cmd->{arguments}->{timeout};
3477         delete $cmd->{arguments}->{timeout};
3478     }
3479
3480     eval {
3481         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
3482         my $sname = qmp_socket($vmid);
3483         if (-e $sname) {
3484             my $qmpclient = PVE::QMPClient->new();
3485
3486             $res = $qmpclient->cmd($vmid, $cmd, $timeout);
3487         } elsif (-e "${var_run_tmpdir}/$vmid.mon") {
3488             die "can't execute complex command on old monitor - stop/start your vm to fix the problem\n"
3489                 if scalar(%{$cmd->{arguments}});
3490             vm_monitor_command($vmid, $cmd->{execute}, $nocheck);
3491         } else {
3492             die "unable to open monitor socket\n";
3493         }
3494     };
3495     if (my $err = $@) {
3496         syslog("err", "VM $vmid qmp command failed - $err");
3497         die $err;
3498     }
3499
3500     return $res;
3501 }
3502
3503 sub vm_human_monitor_command {
3504     my ($vmid, $cmdline) = @_;
3505
3506     my $res;
3507
3508     my $cmd = {
3509         execute => 'human-monitor-command',
3510         arguments => { 'command-line' => $cmdline},
3511     };
3512
3513     return vm_qmp_command($vmid, $cmd);
3514 }
3515
3516 sub vm_commandline {
3517     my ($storecfg, $vmid) = @_;
3518
3519     my $conf = load_config($vmid);
3520
3521     my $defaults = load_defaults();
3522
3523     my $cmd = config_to_command($storecfg, $vmid, $conf, $defaults);
3524
3525     return join(' ', @$cmd);
3526 }
3527
3528 sub vm_reset {
3529     my ($vmid, $skiplock) = @_;
3530
3531     lock_config($vmid, sub {
3532
3533         my $conf = load_config($vmid);
3534
3535         check_lock($conf) if !$skiplock;
3536
3537         vm_mon_cmd($vmid, "system_reset");
3538     });
3539 }
3540
3541 sub get_vm_volumes {
3542     my ($conf) = @_;
3543
3544     my $vollist = [];
3545     foreach_volid($conf, sub {
3546         my ($volid, $is_cdrom) = @_;
3547
3548         return if $volid =~ m|^/|;
3549
3550         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
3551         return if !$sid;
3552
3553         push @$vollist, $volid;
3554     });
3555
3556     return $vollist;
3557 }
3558
3559 sub vm_stop_cleanup {
3560     my ($storecfg, $vmid, $conf, $keepActive) = @_;
3561
3562     eval {
3563         fairsched_rmnod($vmid); # try to destroy group
3564
3565         if (!$keepActive) {
3566             my $vollist = get_vm_volumes($conf);
3567             PVE::Storage::deactivate_volumes($storecfg, $vollist);
3568         }
3569
3570         foreach my $ext (qw(mon qmp pid vnc qga)) {
3571             unlink "/var/run/qemu-server/${vmid}.$ext";
3572         }
3573     };
3574     warn $@ if $@; # avoid errors - just warn
3575 }
3576
3577 # Note: use $nockeck to skip tests if VM configuration file exists.
3578 # We need that when migration VMs to other nodes (files already moved)
3579 # Note: we set $keepActive in vzdump stop mode - volumes need to stay active
3580 sub vm_stop {
3581     my ($storecfg, $vmid, $skiplock, $nocheck, $timeout, $shutdown, $force, $keepActive, $migratedfrom) = @_;
3582
3583     $force = 1 if !defined($force) && !$shutdown;
3584
3585     if ($migratedfrom){
3586         my $pid = check_running($vmid, $nocheck, $migratedfrom);
3587         kill 15, $pid if $pid;
3588         my $conf = load_config($vmid, $migratedfrom);
3589         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive);
3590         return;
3591     }
3592
3593     lock_config($vmid, sub {
3594
3595         my $pid = check_running($vmid, $nocheck);
3596         return if !$pid;
3597
3598         my $conf;
3599         if (!$nocheck) {
3600             $conf = load_config($vmid);
3601             check_lock($conf) if !$skiplock;
3602             if (!defined($timeout) && $shutdown && $conf->{startup}) {
3603                 my $opts = parse_startup($conf->{startup});
3604                 $timeout = $opts->{down} if $opts->{down};
3605             }
3606         }
3607
3608         $timeout = 60 if !defined($timeout);
3609
3610         eval {
3611             if ($shutdown) {
3612                 $nocheck ? vm_mon_cmd_nocheck($vmid, "system_powerdown") : vm_mon_cmd($vmid, "system_powerdown");
3613
3614             } else {
3615                 $nocheck ? vm_mon_cmd_nocheck($vmid, "quit") : vm_mon_cmd($vmid, "quit");
3616             }
3617         };
3618         my $err = $@;
3619
3620         if (!$err) {
3621             my $count = 0;
3622             while (($count < $timeout) && check_running($vmid, $nocheck)) {
3623                 $count++;
3624                 sleep 1;
3625             }
3626
3627             if ($count >= $timeout) {
3628                 if ($force) {
3629                     warn "VM still running - terminating now with SIGTERM\n";
3630                     kill 15, $pid;
3631                 } else {
3632                     die "VM quit/powerdown failed - got timeout\n";
3633                 }
3634             } else {
3635                 vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive) if $conf;
3636                 return;
3637             }
3638         } else {
3639             if ($force) {
3640                 warn "VM quit/powerdown failed - terminating now with SIGTERM\n";
3641                 kill 15, $pid;
3642             } else {
3643                 die "VM quit/powerdown failed\n";
3644             }
3645         }
3646
3647         # wait again
3648         $timeout = 10;
3649
3650         my $count = 0;
3651         while (($count < $timeout) && check_running($vmid, $nocheck)) {
3652             $count++;
3653             sleep 1;
3654         }
3655
3656         if ($count >= $timeout) {
3657             warn "VM still running - terminating now with SIGKILL\n";
3658             kill 9, $pid;
3659             sleep 1;
3660         }
3661
3662         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive) if $conf;
3663    });
3664 }
3665
3666 sub vm_suspend {
3667     my ($vmid, $skiplock) = @_;
3668
3669     lock_config($vmid, sub {
3670
3671         my $conf = load_config($vmid);
3672
3673         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
3674
3675         vm_mon_cmd($vmid, "stop");
3676     });
3677 }
3678
3679 sub vm_resume {
3680     my ($vmid, $skiplock) = @_;
3681
3682     lock_config($vmid, sub {
3683
3684         my $conf = load_config($vmid);
3685
3686         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
3687
3688         vm_mon_cmd($vmid, "cont");
3689     });
3690 }
3691
3692 sub vm_sendkey {
3693     my ($vmid, $skiplock, $key) = @_;
3694
3695     lock_config($vmid, sub {
3696
3697         my $conf = load_config($vmid);
3698
3699         # there is no qmp command, so we use the human monitor command
3700         vm_human_monitor_command($vmid, "sendkey $key");
3701     });
3702 }
3703
3704 sub vm_destroy {
3705     my ($storecfg, $vmid, $skiplock) = @_;
3706
3707     lock_config($vmid, sub {
3708
3709         my $conf = load_config($vmid);
3710
3711         check_lock($conf) if !$skiplock;
3712
3713         if (!check_running($vmid)) {
3714             fairsched_rmnod($vmid); # try to destroy group
3715             destroy_vm($storecfg, $vmid);
3716         } else {
3717             die "VM $vmid is running - destroy failed\n";
3718         }
3719     });
3720 }
3721
3722 # pci helpers
3723
3724 sub file_write {
3725     my ($filename, $buf) = @_;
3726
3727     my $fh = IO::File->new($filename, "w");
3728     return undef if !$fh;
3729
3730     my $res = print $fh $buf;
3731
3732     $fh->close();
3733
3734     return $res;
3735 }
3736
3737 sub pci_device_info {
3738     my ($name) = @_;
3739
3740     my $res;
3741
3742     return undef if $name !~ m/^([a-f0-9]{4}):([a-f0-9]{2}):([a-f0-9]{2})\.([a-f0-9])$/;
3743     my ($domain, $bus, $slot, $func) = ($1, $2, $3, $4);
3744
3745     my $irq = file_read_firstline("$pcisysfs/devices/$name/irq");
3746     return undef if !defined($irq) || $irq !~ m/^\d+$/;
3747
3748     my $vendor = file_read_firstline("$pcisysfs/devices/$name/vendor");
3749     return undef if !defined($vendor) || $vendor !~ s/^0x//;
3750
3751     my $product = file_read_firstline("$pcisysfs/devices/$name/device");
3752     return undef if !defined($product) || $product !~ s/^0x//;
3753
3754     $res = {
3755         name => $name,
3756         vendor => $vendor,
3757         product => $product,
3758         domain => $domain,
3759         bus => $bus,
3760         slot => $slot,
3761         func => $func,
3762         irq => $irq,
3763         has_fl_reset => -f "$pcisysfs/devices/$name/reset" || 0,
3764     };
3765
3766     return $res;
3767 }
3768
3769 sub pci_dev_reset {
3770     my ($dev) = @_;
3771
3772     my $name = $dev->{name};
3773
3774     my $fn = "$pcisysfs/devices/$name/reset";
3775
3776     return file_write($fn, "1");
3777 }
3778
3779 sub pci_dev_bind_to_stub {
3780     my ($dev) = @_;
3781
3782     my $name = $dev->{name};
3783
3784     my $testdir = "$pcisysfs/drivers/pci-stub/$name";
3785     return 1 if -d $testdir;
3786
3787     my $data = "$dev->{vendor} $dev->{product}";
3788     return undef if !file_write("$pcisysfs/drivers/pci-stub/new_id", $data);
3789
3790     my $fn = "$pcisysfs/devices/$name/driver/unbind";
3791     if (!file_write($fn, $name)) {
3792         return undef if -f $fn;
3793     }
3794
3795     $fn = "$pcisysfs/drivers/pci-stub/bind";
3796     if (! -d $testdir) {
3797         return undef if !file_write($fn, $name);
3798     }
3799
3800     return -d $testdir;
3801 }
3802
3803 sub pci_dev_bind_to_vfio {
3804     my ($dev) = @_;
3805
3806     my $name = $dev->{name};
3807
3808     my $vfio_basedir = "$pcisysfs/drivers/vfio-pci";
3809
3810     if (!-d $vfio_basedir) {
3811         system("/sbin/modprobe vfio-pci >/dev/null 2>/dev/null");
3812     }
3813     die "Cannot find vfio-pci module!\n" if !-d $vfio_basedir;
3814
3815     my $testdir = "$vfio_basedir/$name";
3816     return 1 if -d $testdir;
3817
3818     my $data = "$dev->{vendor} $dev->{product}";
3819     return undef if !file_write("$vfio_basedir/new_id", $data);
3820
3821     my $fn = "$pcisysfs/devices/$name/driver/unbind";
3822     if (!file_write($fn, $name)) {
3823         return undef if -f $fn;
3824     }
3825
3826     $fn = "$vfio_basedir/bind";
3827     if (! -d $testdir) {
3828         return undef if !file_write($fn, $name);
3829     }
3830
3831     return -d $testdir;
3832 }
3833
3834 sub pci_dev_group_bind_to_vfio {
3835     my ($pciid) = @_;
3836
3837     my $vfio_basedir = "$pcisysfs/drivers/vfio-pci";
3838
3839     if (!-d $vfio_basedir) {
3840         system("/sbin/modprobe vfio-pci >/dev/null 2>/dev/null");
3841     }
3842     die "Cannot find vfio-pci module!\n" if !-d $vfio_basedir;
3843
3844     # get IOMMU group devices
3845     opendir(my $D, "$pcisysfs/devices/0000:$pciid/iommu_group/devices/") || die "Cannot open iommu_group: $!\n";
3846       my @devs = grep /^0000:/, readdir($D);
3847     closedir($D);
3848
3849     foreach my $pciid (@devs) {
3850         $pciid =~ m/^([:\.\da-f]+)$/ or die "PCI ID $pciid not valid!\n";
3851         my $info = pci_device_info($1);
3852         pci_dev_bind_to_vfio($info) || die "Cannot bind $pciid to vfio\n";
3853     }
3854
3855     return 1;
3856 }
3857
3858 sub print_pci_addr {
3859     my ($id, $bridges) = @_;
3860
3861     my $res = '';
3862     my $devices = {
3863         piix3 => { bus => 0, addr => 1 },
3864         #addr2 : first videocard
3865         balloon0 => { bus => 0, addr => 3 },
3866         watchdog => { bus => 0, addr => 4 },
3867         scsihw0 => { bus => 0, addr => 5 },
3868         scsihw1 => { bus => 0, addr => 6 },
3869         ahci0 => { bus => 0, addr => 7 },
3870         qga0 => { bus => 0, addr => 8 },
3871         spice => { bus => 0, addr => 9 },
3872         virtio0 => { bus => 0, addr => 10 },
3873         virtio1 => { bus => 0, addr => 11 },
3874         virtio2 => { bus => 0, addr => 12 },
3875         virtio3 => { bus => 0, addr => 13 },
3876         virtio4 => { bus => 0, addr => 14 },
3877         virtio5 => { bus => 0, addr => 15 },
3878         hostpci0 => { bus => 0, addr => 16 },
3879         hostpci1 => { bus => 0, addr => 17 },
3880         net0 => { bus => 0, addr => 18 },
3881         net1 => { bus => 0, addr => 19 },
3882         net2 => { bus => 0, addr => 20 },
3883         net3 => { bus => 0, addr => 21 },
3884         net4 => { bus => 0, addr => 22 },
3885         net5 => { bus => 0, addr => 23 },
3886         vga1 => { bus => 0, addr => 24 },
3887         vga2 => { bus => 0, addr => 25 },
3888         vga3 => { bus => 0, addr => 26 },
3889         hostpci2 => { bus => 0, addr => 27 },
3890         hostpci3 => { bus => 0, addr => 28 },
3891         #addr29 : usb-host (pve-usb.cfg)
3892         'pci.1' => { bus => 0, addr => 30 },
3893         'pci.2' => { bus => 0, addr => 31 },
3894         'net6' => { bus => 1, addr => 1 },
3895         'net7' => { bus => 1, addr => 2 },
3896         'net8' => { bus => 1, addr => 3 },
3897         'net9' => { bus => 1, addr => 4 },
3898         'net10' => { bus => 1, addr => 5 },
3899         'net11' => { bus => 1, addr => 6 },
3900         'net12' => { bus => 1, addr => 7 },
3901         'net13' => { bus => 1, addr => 8 },
3902         'net14' => { bus => 1, addr => 9 },
3903         'net15' => { bus => 1, addr => 10 },
3904         'net16' => { bus => 1, addr => 11 },
3905         'net17' => { bus => 1, addr => 12 },
3906         'net18' => { bus => 1, addr => 13 },
3907         'net19' => { bus => 1, addr => 14 },
3908         'net20' => { bus => 1, addr => 15 },
3909         'net21' => { bus => 1, addr => 16 },
3910         'net22' => { bus => 1, addr => 17 },
3911         'net23' => { bus => 1, addr => 18 },
3912         'net24' => { bus => 1, addr => 19 },
3913         'net25' => { bus => 1, addr => 20 },
3914         'net26' => { bus => 1, addr => 21 },
3915         'net27' => { bus => 1, addr => 22 },
3916         'net28' => { bus => 1, addr => 23 },
3917         'net29' => { bus => 1, addr => 24 },
3918         'net30' => { bus => 1, addr => 25 },
3919         'net31' => { bus => 1, addr => 26 },
3920         'virtio6' => { bus => 2, addr => 1 },
3921         'virtio7' => { bus => 2, addr => 2 },
3922         'virtio8' => { bus => 2, addr => 3 },
3923         'virtio9' => { bus => 2, addr => 4 },
3924         'virtio10' => { bus => 2, addr => 5 },
3925         'virtio11' => { bus => 2, addr => 6 },
3926         'virtio12' => { bus => 2, addr => 7 },
3927         'virtio13' => { bus => 2, addr => 8 },
3928         'virtio14' => { bus => 2, addr => 9 },
3929         'virtio15' => { bus => 2, addr => 10 },
3930     };
3931
3932     if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
3933            my $addr = sprintf("0x%x", $devices->{$id}->{addr});
3934            my $bus = $devices->{$id}->{bus};
3935            $res = ",bus=pci.$bus,addr=$addr";
3936            $bridges->{$bus} = 1 if $bridges;
3937     }
3938     return $res;
3939
3940 }
3941
3942 sub print_pcie_addr {
3943     my ($id) = @_;
3944
3945     my $res = '';
3946     my $devices = {
3947         hostpci0 => { bus => "ich9-pcie-port-1", addr => 0 },
3948         hostpci1 => { bus => "ich9-pcie-port-2", addr => 0 },
3949         hostpci2 => { bus => "ich9-pcie-port-3", addr => 0 },
3950         hostpci3 => { bus => "ich9-pcie-port-4", addr => 0 },
3951     };
3952
3953     if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
3954            my $addr = sprintf("0x%x", $devices->{$id}->{addr});
3955            my $bus = $devices->{$id}->{bus};
3956            $res = ",bus=$bus,addr=$addr";
3957     }
3958     return $res;
3959
3960 }
3961
3962 # vzdump restore implementaion
3963
3964 sub tar_archive_read_firstfile {
3965     my $archive = shift;
3966
3967     die "ERROR: file '$archive' does not exist\n" if ! -f $archive;
3968
3969     # try to detect archive type first
3970     my $pid = open (TMP, "tar tf '$archive'|") ||
3971         die "unable to open file '$archive'\n";
3972     my $firstfile = <TMP>;
3973     kill 15, $pid;
3974     close TMP;
3975
3976     die "ERROR: archive contaions no data\n" if !$firstfile;
3977     chomp $firstfile;
3978
3979     return $firstfile;
3980 }
3981
3982 sub tar_restore_cleanup {
3983     my ($storecfg, $statfile) = @_;
3984
3985     print STDERR "starting cleanup\n";
3986
3987     if (my $fd = IO::File->new($statfile, "r")) {
3988         while (defined(my $line = <$fd>)) {
3989             if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
3990                 my $volid = $2;
3991                 eval {
3992                     if ($volid =~ m|^/|) {
3993                         unlink $volid || die 'unlink failed\n';
3994                     } else {
3995                         PVE::Storage::vdisk_free($storecfg, $volid);
3996                     }
3997                     print STDERR "temporary volume '$volid' sucessfuly removed\n";
3998                 };
3999                 print STDERR "unable to cleanup '$volid' - $@" if $@;
4000             } else {
4001                 print STDERR "unable to parse line in statfile - $line";
4002             }
4003         }
4004         $fd->close();
4005     }
4006 }
4007
4008 sub restore_archive {
4009     my ($archive, $vmid, $user, $opts) = @_;
4010
4011     my $format = $opts->{format};
4012     my $comp;
4013
4014     if ($archive =~ m/\.tgz$/ || $archive =~ m/\.tar\.gz$/) {
4015         $format = 'tar' if !$format;
4016         $comp = 'gzip';
4017     } elsif ($archive =~ m/\.tar$/) {
4018         $format = 'tar' if !$format;
4019     } elsif ($archive =~ m/.tar.lzo$/) {
4020         $format = 'tar' if !$format;
4021         $comp = 'lzop';
4022     } elsif ($archive =~ m/\.vma$/) {
4023         $format = 'vma' if !$format;
4024     } elsif ($archive =~ m/\.vma\.gz$/) {
4025         $format = 'vma' if !$format;
4026         $comp = 'gzip';
4027     } elsif ($archive =~ m/\.vma\.lzo$/) {
4028         $format = 'vma' if !$format;
4029         $comp = 'lzop';
4030     } else {
4031         $format = 'vma' if !$format; # default
4032     }
4033
4034     # try to detect archive format
4035     if ($format eq 'tar') {
4036         return restore_tar_archive($archive, $vmid, $user, $opts);
4037     } else {
4038         return restore_vma_archive($archive, $vmid, $user, $opts, $comp);
4039     }
4040 }
4041
4042 sub restore_update_config_line {
4043     my ($outfd, $cookie, $vmid, $map, $line, $unique) = @_;
4044
4045     return if $line =~ m/^\#qmdump\#/;
4046     return if $line =~ m/^\#vzdump\#/;
4047     return if $line =~ m/^lock:/;
4048     return if $line =~ m/^unused\d+:/;
4049     return if $line =~ m/^parent:/;
4050     return if $line =~ m/^template:/; # restored VM is never a template
4051
4052     if (($line =~ m/^(vlan(\d+)):\s*(\S+)\s*$/)) {
4053         # try to convert old 1.X settings
4054         my ($id, $ind, $ethcfg) = ($1, $2, $3);
4055         foreach my $devconfig (PVE::Tools::split_list($ethcfg)) {
4056             my ($model, $macaddr) = split(/\=/, $devconfig);
4057             $macaddr = PVE::Tools::random_ether_addr() if !$macaddr || $unique;
4058             my $net = {
4059                 model => $model,
4060                 bridge => "vmbr$ind",
4061                 macaddr => $macaddr,
4062             };
4063             my $netstr = print_net($net);
4064
4065             print $outfd "net$cookie->{netcount}: $netstr\n";
4066             $cookie->{netcount}++;
4067         }
4068     } elsif (($line =~ m/^(net\d+):\s*(\S+)\s*$/) && $unique) {
4069         my ($id, $netstr) = ($1, $2);
4070         my $net = parse_net($netstr);
4071         $net->{macaddr} = PVE::Tools::random_ether_addr() if $net->{macaddr};
4072         $netstr = print_net($net);
4073         print $outfd "$id: $netstr\n";
4074     } elsif ($line =~ m/^((ide|scsi|virtio|sata)\d+):\s*(\S+)\s*$/) {
4075         my $virtdev = $1;
4076         my $value = $3;
4077         if ($line =~ m/backup=no/) {
4078             print $outfd "#$line";
4079         } elsif ($virtdev && $map->{$virtdev}) {
4080             my $di = parse_drive($virtdev, $value);
4081             delete $di->{format}; # format can change on restore
4082             $di->{file} = $map->{$virtdev};
4083             $value = print_drive($vmid, $di);
4084             print $outfd "$virtdev: $value\n";
4085         } else {
4086             print $outfd $line;
4087         }
4088     } else {
4089         print $outfd $line;
4090     }
4091 }
4092
4093 sub scan_volids {
4094     my ($cfg, $vmid) = @_;
4095
4096     my $info = PVE::Storage::vdisk_list($cfg, undef, $vmid);
4097
4098     my $volid_hash = {};
4099     foreach my $storeid (keys %$info) {
4100         foreach my $item (@{$info->{$storeid}}) {
4101             next if !($item->{volid} && $item->{size});
4102             $item->{path} = PVE::Storage::path($cfg, $item->{volid});
4103             $volid_hash->{$item->{volid}} = $item;
4104         }
4105     }
4106
4107     return $volid_hash;
4108 }
4109
4110 sub get_used_paths {
4111     my ($vmid, $storecfg, $conf, $scan_snapshots, $skip_drive) = @_;
4112
4113     my $used_path = {};
4114
4115     my $scan_config = sub {
4116         my ($cref, $snapname) = @_;
4117
4118         foreach my $key (keys %$cref) {
4119             my $value = $cref->{$key};
4120             if (valid_drivename($key)) {
4121                 next if $skip_drive && $key eq $skip_drive;
4122                 my $drive = parse_drive($key, $value);
4123                 next if !$drive || !$drive->{file} || drive_is_cdrom($drive);
4124                 if ($drive->{file} =~ m!^/!) {
4125                     $used_path->{$drive->{file}}++; # = 1;
4126                 } else {
4127                     my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file}, 1);
4128                     next if !$storeid;
4129                     my $scfg = PVE::Storage::storage_config($storecfg, $storeid, 1);
4130                     next if !$scfg;
4131                     my $path = PVE::Storage::path($storecfg, $drive->{file}, $snapname);
4132                     $used_path->{$path}++; # = 1;
4133                 }
4134             }
4135         }
4136     };
4137
4138     &$scan_config($conf);
4139
4140     undef $skip_drive;
4141
4142     if ($scan_snapshots) {
4143         foreach my $snapname (keys %{$conf->{snapshots}}) {
4144             &$scan_config($conf->{snapshots}->{$snapname}, $snapname);
4145         }
4146     }
4147
4148     return $used_path;
4149 }
4150
4151 sub update_disksize {
4152     my ($vmid, $conf, $volid_hash) = @_;
4153
4154     my $changes;
4155
4156     my $used = {};
4157
4158     # Note: it is allowed to define multiple storages with same path (alias), so
4159     # we need to check both 'volid' and real 'path' (two different volid can point
4160     # to the same path).
4161
4162     my $usedpath = {};
4163
4164     # update size info
4165     foreach my $opt (keys %$conf) {
4166         if (valid_drivename($opt)) {
4167             my $drive = parse_drive($opt, $conf->{$opt});
4168             my $volid = $drive->{file};
4169             next if !$volid;
4170
4171             $used->{$volid} = 1;
4172             if ($volid_hash->{$volid} &&
4173                 (my $path = $volid_hash->{$volid}->{path})) {
4174                 $usedpath->{$path} = 1;
4175             }
4176
4177             next if drive_is_cdrom($drive);
4178             next if !$volid_hash->{$volid};
4179
4180             $drive->{size} = $volid_hash->{$volid}->{size};
4181             my $new = print_drive($vmid, $drive);
4182             if ($new ne $conf->{$opt}) {
4183                 $changes = 1;
4184                 $conf->{$opt} = $new;
4185             }
4186         }
4187     }
4188
4189     # remove 'unusedX' entry if volume is used
4190     foreach my $opt (keys %$conf) {
4191         next if $opt !~ m/^unused\d+$/;
4192         my $volid = $conf->{$opt};
4193         my $path = $volid_hash->{$volid}->{path} if $volid_hash->{$volid};
4194         if ($used->{$volid} || ($path && $usedpath->{$path})) {
4195             $changes = 1;
4196             delete $conf->{$opt};
4197         }
4198     }
4199
4200     foreach my $volid (sort keys %$volid_hash) {
4201         next if $volid =~ m/vm-$vmid-state-/;
4202         next if $used->{$volid};
4203         my $path = $volid_hash->{$volid}->{path};
4204         next if !$path; # just to be sure
4205         next if $usedpath->{$path};
4206         $changes = 1;
4207         add_unused_volume($conf, $volid);
4208         $usedpath->{$path} = 1; # avoid to add more than once (aliases)
4209     }
4210
4211     return $changes;
4212 }
4213
4214 sub rescan {
4215     my ($vmid, $nolock) = @_;
4216
4217     my $cfg = PVE::Cluster::cfs_read_file("storage.cfg");
4218
4219     my $volid_hash = scan_volids($cfg, $vmid);
4220
4221     my $updatefn =  sub {
4222         my ($vmid) = @_;
4223
4224         my $conf = load_config($vmid);
4225
4226         check_lock($conf);
4227
4228         my $vm_volids = {};
4229         foreach my $volid (keys %$volid_hash) {
4230             my $info = $volid_hash->{$volid};
4231             $vm_volids->{$volid} = $info if $info->{vmid} && $info->{vmid} == $vmid;
4232         }
4233
4234         my $changes = update_disksize($vmid, $conf, $vm_volids);
4235
4236         update_config_nolock($vmid, $conf, 1) if $changes;
4237     };
4238
4239     if (defined($vmid)) {
4240         if ($nolock) {
4241             &$updatefn($vmid);
4242         } else {
4243             lock_config($vmid, $updatefn, $vmid);
4244         }
4245     } else {
4246         my $vmlist = config_list();
4247         foreach my $vmid (keys %$vmlist) {
4248             if ($nolock) {
4249                 &$updatefn($vmid);
4250             } else {
4251                 lock_config($vmid, $updatefn, $vmid);
4252             }
4253         }
4254     }
4255 }
4256
4257 sub restore_vma_archive {
4258     my ($archive, $vmid, $user, $opts, $comp) = @_;
4259
4260     my $input = $archive eq '-' ? "<&STDIN" : undef;
4261     my $readfrom = $archive;
4262
4263     my $uncomp = '';
4264     if ($comp) {
4265         $readfrom = '-';
4266         my $qarchive = PVE::Tools::shellquote($archive);
4267         if ($comp eq 'gzip') {
4268             $uncomp = "zcat $qarchive|";
4269         } elsif ($comp eq 'lzop') {
4270             $uncomp = "lzop -d -c $qarchive|";
4271         } else {
4272             die "unknown compression method '$comp'\n";
4273         }
4274
4275     }
4276
4277     my $tmpdir = "/var/tmp/vzdumptmp$$";
4278     rmtree $tmpdir;
4279
4280     # disable interrupts (always do cleanups)
4281     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
4282         warn "got interrupt - ignored\n";
4283     };
4284
4285     my $mapfifo = "/var/tmp/vzdumptmp$$.fifo";
4286     POSIX::mkfifo($mapfifo, 0600);
4287     my $fifofh;
4288
4289     my $openfifo = sub {
4290         open($fifofh, '>', $mapfifo) || die $!;
4291     };
4292
4293     my $cmd = "${uncomp}vma extract -v -r $mapfifo $readfrom $tmpdir";
4294
4295     my $oldtimeout;
4296     my $timeout = 5;
4297
4298     my $devinfo = {};
4299
4300     my $rpcenv = PVE::RPCEnvironment::get();
4301
4302     my $conffile = config_file($vmid);
4303     my $tmpfn = "$conffile.$$.tmp";
4304
4305     # Note: $oldconf is undef if VM does not exists
4306     my $oldconf = PVE::Cluster::cfs_read_file(cfs_config_path($vmid));
4307
4308     my $print_devmap = sub {
4309         my $virtdev_hash = {};
4310
4311         my $cfgfn = "$tmpdir/qemu-server.conf";
4312
4313         # we can read the config - that is already extracted
4314         my $fh = IO::File->new($cfgfn, "r") ||
4315             "unable to read qemu-server.conf - $!\n";
4316
4317         while (defined(my $line = <$fh>)) {
4318             if ($line =~ m/^\#qmdump\#map:(\S+):(\S+):(\S*):(\S*):$/) {
4319                 my ($virtdev, $devname, $storeid, $format) = ($1, $2, $3, $4);
4320                 die "archive does not contain data for drive '$virtdev'\n"
4321                     if !$devinfo->{$devname};
4322                 if (defined($opts->{storage})) {
4323                     $storeid = $opts->{storage} || 'local';
4324                 } elsif (!$storeid) {
4325                     $storeid = 'local';
4326                 }
4327                 $format = 'raw' if !$format;
4328                 $devinfo->{$devname}->{devname} = $devname;
4329                 $devinfo->{$devname}->{virtdev} = $virtdev;
4330                 $devinfo->{$devname}->{format} = $format;
4331                 $devinfo->{$devname}->{storeid} = $storeid;
4332
4333                 # check permission on storage
4334                 my $pool = $opts->{pool}; # todo: do we need that?
4335                 if ($user ne 'root@pam') {
4336                     $rpcenv->check($user, "/storage/$storeid", ['Datastore.AllocateSpace']);
4337                 }
4338
4339                 $virtdev_hash->{$virtdev} = $devinfo->{$devname};
4340             }
4341         }
4342
4343         foreach my $devname (keys %$devinfo) {
4344             die "found no device mapping information for device '$devname'\n"
4345                 if !$devinfo->{$devname}->{virtdev};
4346         }
4347
4348         my $cfg = cfs_read_file('storage.cfg');
4349
4350         # create empty/temp config
4351         if ($oldconf) {
4352             PVE::Tools::file_set_contents($conffile, "memory: 128\n");
4353             foreach_drive($oldconf, sub {
4354                 my ($ds, $drive) = @_;
4355
4356                 return if drive_is_cdrom($drive);
4357
4358                 my $volid = $drive->{file};
4359
4360                 return if !$volid || $volid =~ m|^/|;
4361
4362                 my ($path, $owner) = PVE::Storage::path($cfg, $volid);
4363                 return if !$path || !$owner || ($owner != $vmid);
4364
4365                 # Note: only delete disk we want to restore
4366                 # other volumes will become unused
4367                 if ($virtdev_hash->{$ds}) {
4368                     PVE::Storage::vdisk_free($cfg, $volid);
4369                 }
4370             });
4371         }
4372
4373         my $map = {};
4374         foreach my $virtdev (sort keys %$virtdev_hash) {
4375             my $d = $virtdev_hash->{$virtdev};
4376             my $alloc_size = int(($d->{size} + 1024 - 1)/1024);
4377             my $scfg = PVE::Storage::storage_config($cfg, $d->{storeid});
4378
4379             # test if requested format is supported
4380             my ($defFormat, $validFormats) = PVE::Storage::storage_default_format($cfg, $d->{storeid});
4381             my $supported = grep { $_ eq $d->{format} } @$validFormats;
4382             $d->{format} = $defFormat if !$supported;
4383
4384             my $volid = PVE::Storage::vdisk_alloc($cfg, $d->{storeid}, $vmid,
4385                                                   $d->{format}, undef, $alloc_size);
4386             print STDERR "new volume ID is '$volid'\n";
4387             $d->{volid} = $volid;
4388             my $path = PVE::Storage::path($cfg, $volid);
4389
4390             my $write_zeros = 1;
4391             # fixme: what other storages types initialize volumes with zero?
4392             if ($scfg->{type} eq 'dir' || $scfg->{type} eq 'nfs' || $scfg->{type} eq 'glusterfs' ||
4393                 $scfg->{type} eq 'sheepdog' || $scfg->{type} eq 'rbd') {
4394                 $write_zeros = 0;
4395             }
4396
4397             print $fifofh "${write_zeros}:$d->{devname}=$path\n";
4398
4399             print "map '$d->{devname}' to '$path' (write zeros = ${write_zeros})\n";
4400             $map->{$virtdev} = $volid;
4401         }
4402
4403         $fh->seek(0, 0) || die "seek failed - $!\n";
4404
4405         my $outfd = new IO::File ($tmpfn, "w") ||
4406             die "unable to write config for VM $vmid\n";
4407
4408         my $cookie = { netcount => 0 };
4409         while (defined(my $line = <$fh>)) {
4410             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
4411         }
4412
4413         $fh->close();
4414         $outfd->close();
4415     };
4416
4417     eval {
4418         # enable interrupts
4419         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
4420             die "interrupted by signal\n";
4421         };
4422         local $SIG{ALRM} = sub { die "got timeout\n"; };
4423
4424         $oldtimeout = alarm($timeout);
4425
4426         my $parser = sub {
4427             my $line = shift;
4428
4429             print "$line\n";
4430
4431             if ($line =~ m/^DEV:\sdev_id=(\d+)\ssize:\s(\d+)\sdevname:\s(\S+)$/) {
4432                 my ($dev_id, $size, $devname) = ($1, $2, $3);
4433                 $devinfo->{$devname} = { size => $size, dev_id => $dev_id };
4434             } elsif ($line =~ m/^CTIME: /) {
4435                 # we correctly received the vma config, so we can disable
4436                 # the timeout now for disk allocation (set to 10 minutes, so
4437                 # that we always timeout if something goes wrong)
4438                 alarm(600);
4439                 &$print_devmap();
4440                 print $fifofh "done\n";
4441                 my $tmp = $oldtimeout || 0;
4442                 $oldtimeout = undef;
4443                 alarm($tmp);
4444                 close($fifofh);
4445             }
4446         };
4447
4448         print "restore vma archive: $cmd\n";
4449         run_command($cmd, input => $input, outfunc => $parser, afterfork => $openfifo);
4450     };
4451     my $err = $@;
4452
4453     alarm($oldtimeout) if $oldtimeout;
4454
4455     unlink $mapfifo;
4456
4457     if ($err) {
4458         rmtree $tmpdir;
4459         unlink $tmpfn;
4460
4461         my $cfg = cfs_read_file('storage.cfg');
4462         foreach my $devname (keys %$devinfo) {
4463             my $volid = $devinfo->{$devname}->{volid};
4464             next if !$volid;
4465             eval {
4466                 if ($volid =~ m|^/|) {
4467                     unlink $volid || die 'unlink failed\n';
4468                 } else {
4469                     PVE::Storage::vdisk_free($cfg, $volid);
4470                 }
4471                 print STDERR "temporary volume '$volid' sucessfuly removed\n";
4472             };
4473             print STDERR "unable to cleanup '$volid' - $@" if $@;
4474         }
4475         die $err;
4476     }
4477
4478     rmtree $tmpdir;
4479
4480     rename($tmpfn, $conffile) ||
4481         die "unable to commit configuration file '$conffile'\n";
4482
4483     PVE::Cluster::cfs_update(); # make sure we read new file
4484
4485     eval { rescan($vmid, 1); };
4486     warn $@ if $@;
4487 }
4488
4489 sub restore_tar_archive {
4490     my ($archive, $vmid, $user, $opts) = @_;
4491
4492     if ($archive ne '-') {
4493         my $firstfile = tar_archive_read_firstfile($archive);
4494         die "ERROR: file '$archive' dos not lock like a QemuServer vzdump backup\n"
4495             if $firstfile ne 'qemu-server.conf';
4496     }
4497
4498     my $storecfg = cfs_read_file('storage.cfg');
4499
4500     # destroy existing data - keep empty config
4501     my $vmcfgfn = PVE::QemuServer::config_file($vmid);
4502     destroy_vm($storecfg, $vmid, 1) if -f $vmcfgfn;
4503
4504     my $tocmd = "/usr/lib/qemu-server/qmextract";
4505
4506     $tocmd .= " --storage " . PVE::Tools::shellquote($opts->{storage}) if $opts->{storage};
4507     $tocmd .= " --pool " . PVE::Tools::shellquote($opts->{pool}) if $opts->{pool};
4508     $tocmd .= ' --prealloc' if $opts->{prealloc};
4509     $tocmd .= ' --info' if $opts->{info};
4510
4511     # tar option "xf" does not autodetect compression when read from STDIN,
4512     # so we pipe to zcat
4513     my $cmd = "zcat -f|tar xf " . PVE::Tools::shellquote($archive) . " " .
4514         PVE::Tools::shellquote("--to-command=$tocmd");
4515
4516     my $tmpdir = "/var/tmp/vzdumptmp$$";
4517     mkpath $tmpdir;
4518
4519     local $ENV{VZDUMP_TMPDIR} = $tmpdir;
4520     local $ENV{VZDUMP_VMID} = $vmid;
4521     local $ENV{VZDUMP_USER} = $user;
4522
4523     my $conffile = config_file($vmid);
4524     my $tmpfn = "$conffile.$$.tmp";
4525
4526     # disable interrupts (always do cleanups)
4527     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
4528         print STDERR "got interrupt - ignored\n";
4529     };
4530
4531     eval {
4532         # enable interrupts
4533         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
4534             die "interrupted by signal\n";
4535         };
4536
4537         if ($archive eq '-') {
4538             print "extracting archive from STDIN\n";
4539             run_command($cmd, input => "<&STDIN");
4540         } else {
4541             print "extracting archive '$archive'\n";
4542             run_command($cmd);
4543         }
4544
4545         return if $opts->{info};
4546
4547         # read new mapping
4548         my $map = {};
4549         my $statfile = "$tmpdir/qmrestore.stat";
4550         if (my $fd = IO::File->new($statfile, "r")) {
4551             while (defined (my $line = <$fd>)) {
4552                 if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
4553                     $map->{$1} = $2 if $1;
4554                 } else {
4555                     print STDERR "unable to parse line in statfile - $line\n";
4556                 }
4557             }
4558             $fd->close();
4559         }
4560
4561         my $confsrc = "$tmpdir/qemu-server.conf";
4562
4563         my $srcfd = new IO::File($confsrc, "r") ||
4564             die "unable to open file '$confsrc'\n";
4565
4566         my $outfd = new IO::File ($tmpfn, "w") ||
4567             die "unable to write config for VM $vmid\n";
4568
4569         my $cookie = { netcount => 0 };
4570         while (defined (my $line = <$srcfd>)) {
4571             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
4572         }
4573
4574         $srcfd->close();
4575         $outfd->close();
4576     };
4577     my $err = $@;
4578
4579     if ($err) {
4580
4581         unlink $tmpfn;
4582
4583         tar_restore_cleanup($storecfg, "$tmpdir/qmrestore.stat") if !$opts->{info};
4584
4585         die $err;
4586     }
4587
4588     rmtree $tmpdir;
4589
4590     rename $tmpfn, $conffile ||
4591         die "unable to commit configuration file '$conffile'\n";
4592
4593     PVE::Cluster::cfs_update(); # make sure we read new file
4594
4595     eval { rescan($vmid, 1); };
4596     warn $@ if $@;
4597 };
4598
4599
4600 # Internal snapshots
4601
4602 # NOTE: Snapshot create/delete involves several non-atomic
4603 # action, and can take a long time.
4604 # So we try to avoid locking the file and use 'lock' variable
4605 # inside the config file instead.
4606
4607 my $snapshot_copy_config = sub {
4608     my ($source, $dest) = @_;
4609
4610     foreach my $k (keys %$source) {
4611         next if $k eq 'snapshots';
4612         next if $k eq 'snapstate';
4613         next if $k eq 'snaptime';
4614         next if $k eq 'vmstate';
4615         next if $k eq 'lock';
4616         next if $k eq 'digest';
4617         next if $k eq 'description';
4618         next if $k =~ m/^unused\d+$/;
4619
4620         $dest->{$k} = $source->{$k};
4621     }
4622 };
4623
4624 my $snapshot_apply_config = sub {
4625     my ($conf, $snap) = @_;
4626
4627     # copy snapshot list
4628     my $newconf = {
4629         snapshots => $conf->{snapshots},
4630     };
4631
4632     # keep description and list of unused disks
4633     foreach my $k (keys %$conf) {
4634         next if !($k =~ m/^unused\d+$/ || $k eq 'description');
4635         $newconf->{$k} = $conf->{$k};
4636     }
4637
4638     &$snapshot_copy_config($snap, $newconf);
4639
4640     return $newconf;
4641 };
4642
4643 sub foreach_writable_storage {
4644     my ($conf, $func) = @_;
4645
4646     my $sidhash = {};
4647
4648     foreach my $ds (keys %$conf) {
4649         next if !valid_drivename($ds);
4650
4651         my $drive = parse_drive($ds, $conf->{$ds});
4652         next if !$drive;
4653         next if drive_is_cdrom($drive);
4654
4655         my $volid = $drive->{file};
4656
4657         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
4658         $sidhash->{$sid} = $sid if $sid;
4659     }
4660
4661     foreach my $sid (sort keys %$sidhash) {
4662         &$func($sid);
4663     }
4664 }
4665
4666 my $alloc_vmstate_volid = sub {
4667     my ($storecfg, $vmid, $conf, $snapname) = @_;
4668
4669     # Note: we try to be smart when selecting a $target storage
4670
4671     my $target;
4672
4673     # search shared storage first
4674     foreach_writable_storage($conf, sub {
4675         my ($sid) = @_;
4676         my $scfg = PVE::Storage::storage_config($storecfg, $sid);
4677         return if !$scfg->{shared};
4678
4679         $target = $sid if !$target || $scfg->{path}; # prefer file based storage
4680     });
4681
4682     if (!$target) {
4683         # now search local storage
4684         foreach_writable_storage($conf, sub {
4685             my ($sid) = @_;
4686             my $scfg = PVE::Storage::storage_config($storecfg, $sid);
4687             return if $scfg->{shared};
4688
4689             $target = $sid if !$target || $scfg->{path}; # prefer file based storage;
4690         });
4691     }
4692
4693     $target = 'local' if !$target;
4694
4695     my $driver_state_size = 500; # assume 32MB is enough to safe all driver state;
4696     # we abort live save after $conf->{memory}, so we need at max twice that space
4697     my $size = $conf->{memory}*2 + $driver_state_size;
4698
4699     my $name = "vm-$vmid-state-$snapname";
4700     my $scfg = PVE::Storage::storage_config($storecfg, $target);
4701     $name .= ".raw" if $scfg->{path}; # add filename extension for file base storage
4702     my $volid = PVE::Storage::vdisk_alloc($storecfg, $target, $vmid, 'raw', $name, $size*1024);
4703
4704     return $volid;
4705 };
4706
4707 my $snapshot_prepare = sub {
4708     my ($vmid, $snapname, $save_vmstate, $comment) = @_;
4709
4710     my $snap;
4711
4712     my $updatefn =  sub {
4713
4714         my $conf = load_config($vmid);
4715
4716         die "you can't take a snapshot if it's a template\n"
4717             if is_template($conf);
4718
4719         check_lock($conf);
4720
4721         $conf->{lock} = 'snapshot';
4722
4723         die "snapshot name '$snapname' already used\n"
4724             if defined($conf->{snapshots}->{$snapname});
4725
4726         my $storecfg = PVE::Storage::config();
4727         die "snapshot feature is not available" if !has_feature('snapshot', $conf, $storecfg);
4728
4729         $snap = $conf->{snapshots}->{$snapname} = {};
4730
4731         if ($save_vmstate && check_running($vmid)) {
4732             $snap->{vmstate} = &$alloc_vmstate_volid($storecfg, $vmid, $conf, $snapname);
4733         }
4734
4735         &$snapshot_copy_config($conf, $snap);
4736
4737         $snap->{snapstate} = "prepare";
4738         $snap->{snaptime} = time();
4739         $snap->{description} = $comment if $comment;
4740
4741         # always overwrite machine if we save vmstate. This makes sure we
4742         # can restore it later using correct machine type
4743         $snap->{machine} = get_current_qemu_machine($vmid) if $snap->{vmstate};
4744
4745         update_config_nolock($vmid, $conf, 1);
4746     };
4747
4748     lock_config($vmid, $updatefn);
4749
4750     return $snap;
4751 };
4752
4753 my $snapshot_commit = sub {
4754     my ($vmid, $snapname) = @_;
4755
4756     my $updatefn = sub {
4757
4758         my $conf = load_config($vmid);
4759
4760         die "missing snapshot lock\n"
4761             if !($conf->{lock} && $conf->{lock} eq 'snapshot');
4762
4763         my $has_machine_config = defined($conf->{machine});
4764
4765         my $snap = $conf->{snapshots}->{$snapname};
4766
4767         die "snapshot '$snapname' does not exist\n" if !defined($snap);
4768
4769         die "wrong snapshot state\n"
4770             if !($snap->{snapstate} && $snap->{snapstate} eq "prepare");
4771
4772         delete $snap->{snapstate};
4773         delete $conf->{lock};
4774
4775         my $newconf = &$snapshot_apply_config($conf, $snap);
4776
4777         delete $newconf->{machine} if !$has_machine_config;
4778
4779         $newconf->{parent} = $snapname;
4780
4781         update_config_nolock($vmid, $newconf, 1);
4782     };
4783
4784     lock_config($vmid, $updatefn);
4785 };
4786
4787 sub snapshot_rollback {
4788     my ($vmid, $snapname) = @_;
4789
4790     my $snap;
4791
4792     my $prepare = 1;
4793
4794     my $storecfg = PVE::Storage::config();
4795
4796     my $updatefn = sub {
4797
4798         my $conf = load_config($vmid);
4799
4800         die "you can't rollback if vm is a template\n" if is_template($conf);
4801
4802         $snap = $conf->{snapshots}->{$snapname};
4803
4804         die "snapshot '$snapname' does not exist\n" if !defined($snap);
4805
4806         die "unable to rollback to incomplete snapshot (snapstate = $snap->{snapstate})\n"
4807             if $snap->{snapstate};
4808
4809         if ($prepare) {
4810             check_lock($conf);
4811             vm_stop($storecfg, $vmid, undef, undef, 5, undef, undef);
4812         }
4813
4814         die "unable to rollback vm $vmid: vm is running\n"
4815             if check_running($vmid);
4816
4817         if ($prepare) {
4818             $conf->{lock} = 'rollback';
4819         } else {
4820             die "got wrong lock\n" if !($conf->{lock} && $conf->{lock} eq 'rollback');
4821             delete $conf->{lock};
4822         }
4823
4824         my $forcemachine;
4825
4826         if (!$prepare) {
4827             my $has_machine_config = defined($conf->{machine});
4828
4829             # copy snapshot config to current config
4830             $conf = &$snapshot_apply_config($conf, $snap);
4831             $conf->{parent} = $snapname;
4832
4833             # Note: old code did not store 'machine', so we try to be smart
4834             # and guess the snapshot was generated with kvm 1.4 (pc-i440fx-1.4).
4835             $forcemachine = $conf->{machine} || 'pc-i440fx-1.4';
4836             # we remove the 'machine' configuration if not explicitly specified
4837             # in the original config.
4838             delete $conf->{machine} if $snap->{vmstate} && !$has_machine_config;
4839         }
4840
4841         update_config_nolock($vmid, $conf, 1);
4842
4843         if (!$prepare && $snap->{vmstate}) {
4844             my $statefile = PVE::Storage::path($storecfg, $snap->{vmstate});
4845             vm_start($storecfg, $vmid, $statefile, undef, undef, undef, $forcemachine);
4846         }
4847     };
4848
4849     lock_config($vmid, $updatefn);
4850
4851     foreach_drive($snap, sub {
4852         my ($ds, $drive) = @_;
4853
4854         return if drive_is_cdrom($drive);
4855
4856         my $volid = $drive->{file};
4857         my $device = "drive-$ds";
4858
4859         PVE::Storage::volume_snapshot_rollback($storecfg, $volid, $snapname);
4860     });
4861
4862     $prepare = 0;
4863     lock_config($vmid, $updatefn);
4864 }
4865
4866 my $savevm_wait = sub {
4867     my ($vmid) = @_;
4868
4869     for(;;) {
4870         my $stat = vm_mon_cmd_nocheck($vmid, "query-savevm");
4871         if (!$stat->{status}) {
4872             die "savevm not active\n";
4873         } elsif ($stat->{status} eq 'active') {
4874             sleep(1);
4875             next;
4876         } elsif ($stat->{status} eq 'completed') {
4877             last;
4878         } else {
4879             die "query-savevm returned status '$stat->{status}'\n";
4880         }
4881     }
4882 };
4883
4884 sub snapshot_create {
4885     my ($vmid, $snapname, $save_vmstate, $freezefs, $comment) = @_;
4886
4887     my $snap = &$snapshot_prepare($vmid, $snapname, $save_vmstate, $comment);
4888
4889     $freezefs = $save_vmstate = 0 if !$snap->{vmstate}; # vm is not running
4890
4891     my $drivehash = {};
4892
4893     my $running = check_running($vmid);
4894
4895     eval {
4896         # create internal snapshots of all drives
4897
4898         my $storecfg = PVE::Storage::config();
4899
4900         if ($running) {
4901             if ($snap->{vmstate}) {
4902                 my $path = PVE::Storage::path($storecfg, $snap->{vmstate});
4903                 vm_mon_cmd($vmid, "savevm-start", statefile => $path);
4904                 &$savevm_wait($vmid);
4905             } else {
4906                 vm_mon_cmd($vmid, "savevm-start");
4907             }
4908         };
4909
4910         qga_freezefs($vmid) if $running && $freezefs;
4911
4912         foreach_drive($snap, sub {
4913             my ($ds, $drive) = @_;
4914
4915             return if drive_is_cdrom($drive);
4916
4917             my $volid = $drive->{file};
4918             my $device = "drive-$ds";
4919
4920             qemu_volume_snapshot($vmid, $device, $storecfg, $volid, $snapname);
4921             $drivehash->{$ds} = 1;
4922        });
4923     };
4924     my $err = $@;
4925
4926     eval { qga_unfreezefs($vmid) if $running && $freezefs; };
4927     warn $@ if $@;
4928
4929     eval { vm_mon_cmd($vmid, "savevm-end") if $running; };
4930     warn $@ if $@;
4931
4932     if ($err) {
4933         warn "snapshot create failed: starting cleanup\n";
4934         eval { snapshot_delete($vmid, $snapname, 0, $drivehash); };
4935         warn $@ if $@;
4936         die $err;
4937     }
4938
4939     &$snapshot_commit($vmid, $snapname);
4940 }
4941
4942 # Note: $drivehash is only set when called from snapshot_create.
4943 sub snapshot_delete {
4944     my ($vmid, $snapname, $force, $drivehash) = @_;
4945
4946     my $prepare = 1;
4947
4948     my $snap;
4949     my $unused = [];
4950
4951     my $unlink_parent = sub {
4952         my ($confref, $new_parent) = @_;
4953
4954         if ($confref->{parent} && $confref->{parent} eq $snapname) {
4955             if ($new_parent) {
4956                 $confref->{parent} = $new_parent;
4957             } else {
4958                 delete $confref->{parent};
4959             }
4960         }
4961     };
4962
4963     my $updatefn =  sub {
4964         my ($remove_drive) = @_;
4965
4966         my $conf = load_config($vmid);
4967
4968         if (!$drivehash) {
4969             check_lock($conf);
4970             die "you can't delete a snapshot if vm is a template\n"
4971                 if is_template($conf);
4972         }
4973
4974         $snap = $conf->{snapshots}->{$snapname};
4975
4976         die "snapshot '$snapname' does not exist\n" if !defined($snap);
4977
4978         # remove parent refs
4979         if (!$prepare) {
4980             &$unlink_parent($conf, $snap->{parent});
4981             foreach my $sn (keys %{$conf->{snapshots}}) {
4982                 next if $sn eq $snapname;
4983                 &$unlink_parent($conf->{snapshots}->{$sn}, $snap->{parent});
4984             }
4985         }
4986
4987         if ($remove_drive) {
4988             if ($remove_drive eq 'vmstate') {
4989                 delete $snap->{$remove_drive};
4990             } else {
4991                 my $drive = parse_drive($remove_drive, $snap->{$remove_drive});
4992                 my $volid = $drive->{file};
4993                 delete $snap->{$remove_drive};
4994                 add_unused_volume($conf, $volid);
4995             }
4996         }
4997
4998         if ($prepare) {
4999             $snap->{snapstate} = 'delete';
5000         } else {
5001             delete $conf->{snapshots}->{$snapname};
5002             delete $conf->{lock} if $drivehash;
5003             foreach my $volid (@$unused) {
5004                 add_unused_volume($conf, $volid);
5005             }
5006         }
5007
5008         update_config_nolock($vmid, $conf, 1);
5009     };
5010
5011     lock_config($vmid, $updatefn);
5012
5013     # now remove vmstate file
5014
5015     my $storecfg = PVE::Storage::config();
5016
5017     if ($snap->{vmstate}) {
5018         eval {  PVE::Storage::vdisk_free($storecfg, $snap->{vmstate}); };
5019         if (my $err = $@) {
5020             die $err if !$force;
5021             warn $err;
5022         }
5023         # save changes (remove vmstate from snapshot)
5024         lock_config($vmid, $updatefn, 'vmstate') if !$force;
5025     };
5026
5027     # now remove all internal snapshots
5028     foreach_drive($snap, sub {
5029         my ($ds, $drive) = @_;
5030
5031         return if drive_is_cdrom($drive);
5032
5033         my $volid = $drive->{file};
5034         my $device = "drive-$ds";
5035
5036         if (!$drivehash || $drivehash->{$ds}) {
5037             eval { qemu_volume_snapshot_delete($vmid, $device, $storecfg, $volid, $snapname); };
5038             if (my $err = $@) {
5039                 die $err if !$force;
5040                 warn $err;
5041             }
5042         }
5043
5044         # save changes (remove drive fron snapshot)
5045         lock_config($vmid, $updatefn, $ds) if !$force;
5046         push @$unused, $volid;
5047     });
5048
5049     # now cleanup config
5050     $prepare = 0;
5051     lock_config($vmid, $updatefn);
5052 }
5053
5054 sub has_feature {
5055     my ($feature, $conf, $storecfg, $snapname, $running) = @_;
5056
5057     my $err;
5058     foreach_drive($conf, sub {
5059         my ($ds, $drive) = @_;
5060
5061         return if drive_is_cdrom($drive);
5062         my $volid = $drive->{file};
5063         $err = 1 if !PVE::Storage::volume_has_feature($storecfg, $feature, $volid, $snapname, $running);
5064     });
5065
5066     return $err ? 0 : 1;
5067 }
5068
5069 sub template_create {
5070     my ($vmid, $conf, $disk) = @_;
5071
5072     my $storecfg = PVE::Storage::config();
5073
5074     foreach_drive($conf, sub {
5075         my ($ds, $drive) = @_;
5076
5077         return if drive_is_cdrom($drive);
5078         return if $disk && $ds ne $disk;
5079
5080         my $volid = $drive->{file};
5081         return if !PVE::Storage::volume_has_feature($storecfg, 'template', $volid);
5082
5083         my $voliddst = PVE::Storage::vdisk_create_base($storecfg, $volid);
5084         $drive->{file} = $voliddst;
5085         $conf->{$ds} = print_drive($vmid, $drive);
5086         update_config_nolock($vmid, $conf, 1);
5087     });
5088 }
5089
5090 sub is_template {
5091     my ($conf) = @_;
5092
5093     return 1 if defined $conf->{template} && $conf->{template} == 1;
5094 }
5095
5096 sub qemu_img_convert {
5097     my ($src_volid, $dst_volid, $size, $snapname) = @_;
5098
5099     my $storecfg = PVE::Storage::config();
5100     my ($src_storeid, $src_volname) = PVE::Storage::parse_volume_id($src_volid, 1);
5101     my ($dst_storeid, $dst_volname) = PVE::Storage::parse_volume_id($dst_volid, 1);
5102
5103     if ($src_storeid && $dst_storeid) {
5104         my $src_scfg = PVE::Storage::storage_config($storecfg, $src_storeid);
5105         my $dst_scfg = PVE::Storage::storage_config($storecfg, $dst_storeid);
5106
5107         my $src_format = qemu_img_format($src_scfg, $src_volname);
5108         my $dst_format = qemu_img_format($dst_scfg, $dst_volname);
5109
5110         my $src_path = PVE::Storage::path($storecfg, $src_volid, $snapname);
5111         my $dst_path = PVE::Storage::path($storecfg, $dst_volid);
5112
5113         my $cmd = [];
5114         push @$cmd, '/usr/bin/qemu-img', 'convert', '-t', 'writeback', '-p', '-n';
5115         push @$cmd, '-s', $snapname if($snapname && $src_format eq "qcow2");
5116         push @$cmd, '-f', $src_format, '-O', $dst_format, $src_path, $dst_path;
5117
5118         my $parser = sub {
5119             my $line = shift;
5120             if($line =~ m/\((\S+)\/100\%\)/){
5121                 my $percent = $1;
5122                 my $transferred = int($size * $percent / 100);
5123                 my $remaining = $size - $transferred;
5124
5125                 print "transferred: $transferred bytes remaining: $remaining bytes total: $size bytes progression: $percent %\n";
5126             }
5127
5128         };
5129
5130         eval  { run_command($cmd, timeout => undef, outfunc => $parser); };
5131         my $err = $@;
5132         die "copy failed: $err" if $err;
5133     }
5134 }
5135
5136 sub qemu_img_format {
5137     my ($scfg, $volname) = @_;
5138
5139     if ($scfg->{path} && $volname =~ m/\.(raw|qcow2|qed|vmdk)$/) {
5140         return $1;
5141     } elsif ($scfg->{type} eq 'iscsi') {
5142         return "host_device";
5143     } else {
5144         return "raw";
5145     }
5146 }
5147
5148 sub qemu_drive_mirror {
5149     my ($vmid, $drive, $dst_volid, $vmiddst) = @_;
5150
5151     my $count = 0;
5152     my $old_len = 0;
5153     my $frozen = undef;
5154     my $maxwait = 120;
5155
5156     my $storecfg = PVE::Storage::config();
5157     my ($dst_storeid, $dst_volname) = PVE::Storage::parse_volume_id($dst_volid, 1);
5158
5159     if ($dst_storeid) {
5160         my $dst_scfg = PVE::Storage::storage_config($storecfg, $dst_storeid);
5161
5162         my $format;
5163         if ($dst_volname =~ m/\.(raw|qcow2)$/){
5164             $format = $1;
5165         }
5166
5167         my $dst_path = PVE::Storage::path($storecfg, $dst_volid);
5168
5169         if ($format) {
5170             #fixme : sometime drive-mirror timeout, but works fine after.
5171             # (I have see the problem with big volume > 200GB), so we need to eval
5172             eval { vm_mon_cmd($vmid, "drive-mirror", timeout => 10, device => "drive-$drive", mode => "existing",
5173                               sync => "full", target => $dst_path, format => $format); };
5174         } else {
5175             eval { vm_mon_cmd($vmid, "drive-mirror", timeout => 10, device => "drive-$drive", mode => "existing",
5176                               sync => "full", target => $dst_path); };
5177         }
5178
5179         eval {
5180             while (1) {
5181                 my $stats = vm_mon_cmd($vmid, "query-block-jobs");
5182                 my $stat = @$stats[0];
5183                 die "mirroring job seem to have die. Maybe do you have bad sectors?" if !$stat;
5184                 die "error job is not mirroring" if $stat->{type} ne "mirror";
5185
5186                 my $transferred = $stat->{offset};
5187                 my $total = $stat->{len};
5188                 my $remaining = $total - $transferred;
5189                 my $percent = sprintf "%.2f", ($transferred * 100 / $total);
5190                 my $busy = $stat->{busy};
5191
5192                 print "transferred: $transferred bytes remaining: $remaining bytes total: $total bytes progression: $percent % busy: $busy\n";
5193
5194                 if ($stat->{len} == $stat->{offset}) {
5195                     last if $busy eq 'false';
5196                     if ($count > $maxwait) {
5197                         # if too much writes to disk occurs at the end of migration
5198                         #the disk needs to be freezed to be able to complete the migration
5199                         vm_suspend($vmid,1);
5200                         $frozen = 1;
5201                     }
5202                     $count ++
5203                 }
5204                 $old_len = $stat->{offset};
5205                 sleep 1;
5206             }
5207
5208             if ($vmiddst == $vmid) {
5209                 # switch the disk if source and destination are on the same guest
5210                 vm_mon_cmd($vmid, "block-job-complete", device => "drive-$drive");
5211             }
5212
5213             vm_resume($vmid, 1) if $frozen;
5214
5215         };
5216         if (my $err = $@) {
5217             eval { vm_mon_cmd($vmid, "block-job-cancel", device => "drive-$drive"); };
5218             while (1) {
5219                 my $stats = vm_mon_cmd($vmid, "query-block-jobs");
5220                 my $stat = @$stats[0];
5221                 last if !$stat;
5222                 sleep 1;
5223             }
5224             die "mirroring error: $err";
5225         }
5226
5227         if ($vmiddst != $vmid) {
5228             # if we clone a disk for a new target vm, we don't switch the disk
5229             vm_mon_cmd($vmid, "block-job-cancel", device => "drive-$drive");
5230             while (1) {
5231                 my $stats = vm_mon_cmd($vmid, "query-block-jobs");
5232                 my $stat = @$stats[0];
5233                 last if !$stat;
5234                 sleep 1;
5235             }
5236         }
5237     }
5238 }
5239
5240 sub clone_disk {
5241     my ($storecfg, $vmid, $running, $drivename, $drive, $snapname,
5242         $newvmid, $storage, $format, $full, $newvollist) = @_;
5243
5244     my $newvolid;
5245
5246     if (!$full) {
5247         print "create linked clone of drive $drivename ($drive->{file})\n";
5248         $newvolid = PVE::Storage::vdisk_clone($storecfg,  $drive->{file}, $newvmid, $snapname);
5249         push @$newvollist, $newvolid;
5250     } else {
5251         my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file});
5252         $storeid = $storage if $storage;
5253
5254         my ($defFormat, $validFormats) = PVE::Storage::storage_default_format($storecfg, $storeid);
5255         if (!$format) {
5256             $format = $drive->{format} || $defFormat;
5257         }
5258
5259         # test if requested format is supported - else use default
5260         my $supported = grep { $_ eq $format } @$validFormats;
5261         $format = $defFormat if !$supported;
5262
5263         my ($size) = PVE::Storage::volume_size_info($storecfg, $drive->{file}, 3);
5264
5265         print "create full clone of drive $drivename ($drive->{file})\n";
5266         $newvolid = PVE::Storage::vdisk_alloc($storecfg, $storeid, $newvmid, $format, undef, ($size/1024));
5267         push @$newvollist, $newvolid;
5268
5269         if (!$running || $snapname) {
5270             qemu_img_convert($drive->{file}, $newvolid, $size, $snapname);
5271         } else {
5272             qemu_drive_mirror($vmid, $drivename, $newvolid, $newvmid);
5273         }
5274     }
5275
5276     my ($size) = PVE::Storage::volume_size_info($storecfg, $newvolid, 3);
5277
5278     my $disk = $drive;
5279     $disk->{format} = undef;
5280     $disk->{file} = $newvolid;
5281     $disk->{size} = $size;
5282
5283     return $disk;
5284 }
5285
5286 # this only works if VM is running
5287 sub get_current_qemu_machine {
5288     my ($vmid) = @_;
5289
5290     my $cmd = { execute => 'query-machines', arguments => {} };
5291     my $res = PVE::QemuServer::vm_qmp_command($vmid, $cmd);
5292
5293     my ($current, $default);
5294     foreach my $e (@$res) {
5295         $default = $e->{name} if $e->{'is-default'};
5296         $current = $e->{name} if $e->{'is-current'};
5297     }
5298
5299     # fallback to the default machine if current is not supported by qemu
5300     return $current || $default || 'pc';
5301 }
5302
5303 sub lspci {
5304
5305     my $devices = {};
5306
5307     dir_glob_foreach("$pcisysfs/devices", '[a-f0-9]{4}:([a-f0-9]{2}:[a-f0-9]{2})\.([0-9])', sub {
5308             my (undef, $id, $function) = @_;
5309             my $res = { id => $id, function => $function};
5310             push @{$devices->{$id}}, $res;
5311     });
5312
5313     return $devices;
5314 }
5315
5316 1;