PVE/QemuServer.pm

   1 package PVE::QemuServer;
   2
   3 use strict;
   4 use warnings;
   5 use POSIX;
   6 use IO::Handle;
   7 use IO::Select;
   8 use IO::File;
   9 use IO::Dir;
  10 use IO::Socket::UNIX;
  11 use File::Basename;
  12 use File::Path;
  13 use File::stat;
  14 use Getopt::Long;
  15 use Digest::SHA;
  16 use Fcntl ':flock';
  17 use Cwd 'abs_path';
  18 use IPC::Open3;
  19 use JSON;
  20 use Fcntl;
  21 use PVE::SafeSyslog;
  22 use Storable qw(dclone);
  23 use PVE::Exception qw(raise raise_param_exc);
  24 use PVE::Storage;
  25 use PVE::Tools qw(run_command lock_file lock_file_full file_read_firstline dir_glob_foreach);
  26 use PVE::JSONSchema qw(get_standard_option);
  27 use PVE::Cluster qw(cfs_register_file cfs_read_file cfs_write_file cfs_lock_file);
  28 use PVE::INotify;
  29 use PVE::ProcFSTools;
  30 use PVE::QMPClient;
  31 use PVE::RPCEnvironment;
  32 use Time::HiRes qw(gettimeofday);
  33
  34 my $cpuinfo = PVE::ProcFSTools::read_cpuinfo();
  35
  36 # Note about locking: we use flock on the config file protect
  37 # against concurent actions.
  38 # Aditionaly, we have a 'lock' setting in the config file. This
  39 # can be set to 'migrate', 'backup', 'snapshot' or 'rollback'. Most actions are not
  40 # allowed when such lock is set. But you can ignore this kind of
  41 # lock with the --skiplock flag.
  42
  43 cfs_register_file('/qemu-server/',
  44                   \&parse_vm_config,
  45                   \&write_vm_config);
  46
  47 PVE::JSONSchema::register_standard_option('skiplock', {
  48     description => "Ignore locks - only root is allowed to use this option.",
  49     type => 'boolean',
  50     optional => 1,
  51 });
  52
  53 PVE::JSONSchema::register_standard_option('pve-qm-stateuri', {
  54     description => "Some command save/restore state from this location.",
  55     type => 'string',
  56     maxLength => 128,
  57     optional => 1,
  58 });
  59
  60 PVE::JSONSchema::register_standard_option('pve-snapshot-name', {
  61     description => "The name of the snapshot.",
  62     type => 'string', format => 'pve-configid',
  63     maxLength => 40,
  64 });
  65
  66 #no warnings 'redefine';
  67
  68 unless(defined(&_VZSYSCALLS_H_)) {
  69     eval 'sub _VZSYSCALLS_H_ () {1;}' unless defined(&_VZSYSCALLS_H_);
  70     require 'sys/syscall.ph';
  71     if(defined(&__x86_64__)) {
  72         eval 'sub __NR_fairsched_vcpus () {499;}' unless defined(&__NR_fairsched_vcpus);
  73         eval 'sub __NR_fairsched_mknod () {504;}' unless defined(&__NR_fairsched_mknod);
  74         eval 'sub __NR_fairsched_rmnod () {505;}' unless defined(&__NR_fairsched_rmnod);
  75         eval 'sub __NR_fairsched_chwt () {506;}' unless defined(&__NR_fairsched_chwt);
  76         eval 'sub __NR_fairsched_mvpr () {507;}' unless defined(&__NR_fairsched_mvpr);
  77         eval 'sub __NR_fairsched_rate () {508;}' unless defined(&__NR_fairsched_rate);
  78         eval 'sub __NR_setluid () {501;}' unless defined(&__NR_setluid);
  79         eval 'sub __NR_setublimit () {502;}' unless defined(&__NR_setublimit);
  80     }
  81     elsif(defined( &__i386__) ) {
  82         eval 'sub __NR_fairsched_mknod () {500;}' unless defined(&__NR_fairsched_mknod);
  83         eval 'sub __NR_fairsched_rmnod () {501;}' unless defined(&__NR_fairsched_rmnod);
  84         eval 'sub __NR_fairsched_chwt () {502;}' unless defined(&__NR_fairsched_chwt);
  85         eval 'sub __NR_fairsched_mvpr () {503;}' unless defined(&__NR_fairsched_mvpr);
  86         eval 'sub __NR_fairsched_rate () {504;}' unless defined(&__NR_fairsched_rate);
  87         eval 'sub __NR_fairsched_vcpus () {505;}' unless defined(&__NR_fairsched_vcpus);
  88         eval 'sub __NR_setluid () {511;}' unless defined(&__NR_setluid);
  89         eval 'sub __NR_setublimit () {512;}' unless defined(&__NR_setublimit);
  90     } else {
  91         die("no fairsched syscall for this arch");
  92     }
  93     require 'asm/ioctl.ph';
  94     eval 'sub KVM_GET_API_VERSION () { &_IO(0xAE, 0x);}' unless defined(&KVM_GET_API_VERSION);
  95 }
  96
  97 sub fairsched_mknod {
  98     my ($parent, $weight, $desired) = @_;
  99
 100     return syscall(&__NR_fairsched_mknod, int($parent), int($weight), int($desired));
 101 }
 102
 103 sub fairsched_rmnod {
 104     my ($id) = @_;
 105
 106     return syscall(&__NR_fairsched_rmnod, int($id));
 107 }
 108
 109 sub fairsched_mvpr {
 110     my ($pid, $newid) = @_;
 111
 112     return syscall(&__NR_fairsched_mvpr, int($pid), int($newid));
 113 }
 114
 115 sub fairsched_vcpus {
 116     my ($id, $vcpus) = @_;
 117
 118     return syscall(&__NR_fairsched_vcpus, int($id), int($vcpus));
 119 }
 120
 121 sub fairsched_rate {
 122     my ($id, $op, $rate) = @_;
 123
 124     return syscall(&__NR_fairsched_rate, int($id), int($op), int($rate));
 125 }
 126
 127 use constant FAIRSCHED_SET_RATE  => 0;
 128 use constant FAIRSCHED_DROP_RATE => 1;
 129 use constant FAIRSCHED_GET_RATE  => 2;
 130
 131 sub fairsched_cpulimit {
 132     my ($id, $limit) = @_;
 133
 134     my $cpulim1024 = int($limit * 1024 / 100);
 135     my $op = $cpulim1024 ? FAIRSCHED_SET_RATE : FAIRSCHED_DROP_RATE;
 136
 137     return fairsched_rate($id, $op, $cpulim1024);
 138 }
 139
 140 my $nodename = PVE::INotify::nodename();
 141
 142 mkdir "/etc/pve/nodes/$nodename";
 143 my $confdir = "/etc/pve/nodes/$nodename/qemu-server";
 144 mkdir $confdir;
 145
 146 my $var_run_tmpdir = "/var/run/qemu-server";
 147 mkdir $var_run_tmpdir;
 148
 149 my $lock_dir = "/var/lock/qemu-server";
 150 mkdir $lock_dir;
 151
 152 my $pcisysfs = "/sys/bus/pci";
 153
 154 my $confdesc = {
 155     iothread => {
 156         optional => 1,
 157         type => 'boolean',
 158         description => "Enable iothread dataplane.",
 159         default => 0,
 160     },
 161     onboot => {
 162         optional => 1,
 163         type => 'boolean',
 164         description => "Specifies whether a VM will be started during system bootup.",
 165         default => 0,
 166     },
 167     autostart => {
 168         optional => 1,
 169         type => 'boolean',
 170         description => "Automatic restart after crash (currently ignored).",
 171         default => 0,
 172     },
 173     hotplug => {
 174         optional => 1,
 175         type => 'string', format => 'pve-hotplug-features',
 176         description => "Selectively enable hotplug features. This is a comma separated list of hotplug features: 'network', 'disk', 'cpu', 'memory' and 'usb'. Use '0' to disable hotplug completely. Value '1' is an alias for the default 'network,disk,usb'.",
 177         default => 'network,disk,usb',
 178     },
 179     reboot => {
 180         optional => 1,
 181         type => 'boolean',
 182         description => "Allow reboot. If set to '0' the VM exit on reboot.",
 183         default => 1,
 184     },
 185     lock => {
 186         optional => 1,
 187         type => 'string',
 188         description => "Lock/unlock the VM.",
 189         enum => [qw(migrate backup snapshot rollback)],
 190     },
 191     cpulimit => {
 192         optional => 1,
 193         type => 'integer',
 194         description => "Limit of CPU usage in per cent. Note if the computer has 2 CPUs, it has total of 200% CPU time. Value '0' indicates no CPU limit.\n\nNOTE: This option is currently ignored.",
 195         minimum => 0,
 196         default => 0,
 197     },
 198     cpuunits => {
 199         optional => 1,
 200         type => 'integer',
 201         description => "CPU weight for a VM. Argument is used in the kernel fair scheduler. The larger the number is, the more CPU time this VM gets. Number is relative to weights of all the other running VMs.\n\nNOTE: You can disable fair-scheduler configuration by setting this to 0.",
 202         minimum => 0,
 203         maximum => 500000,
 204         default => 1000,
 205     },
 206     memory => {
 207         optional => 1,
 208         type => 'integer',
 209         description => "Amount of RAM for the VM in MB. This is the maximum available memory when you use the balloon device.",
 210         minimum => 16,
 211         default => 512,
 212     },
 213     balloon => {
 214         optional => 1,
 215         type => 'integer',
 216         description => "Amount of target RAM for the VM in MB. Using zero disables the ballon driver.",
 217         minimum => 0,
 218     },
 219     shares => {
 220         optional => 1,
 221         type => 'integer',
 222         description => "Amount of memory shares for auto-ballooning. The larger the number is, the more memory this VM gets. Number is relative to weights of all other running VMs. Using zero disables auto-ballooning",
 223         minimum => 0,
 224         maximum => 50000,
 225         default => 1000,
 226     },
 227     keyboard => {
 228         optional => 1,
 229         type => 'string',
 230         description => "Keybord layout for vnc server. Default is read from the datacenter configuration file.",
 231         enum => PVE::Tools::kvmkeymaplist(),
 232         default => 'en-us',
 233     },
 234     name => {
 235         optional => 1,
 236         type => 'string', format => 'dns-name',
 237         description => "Set a name for the VM. Only used on the configuration web interface.",
 238     },
 239     scsihw => {
 240         optional => 1,
 241         type => 'string',
 242         description => "scsi controller model",
 243         enum => [qw(lsi lsi53c810 virtio-scsi-pci megasas pvscsi)],
 244         default => 'lsi',
 245     },
 246     description => {
 247         optional => 1,
 248         type => 'string',
 249         description => "Description for the VM. Only used on the configuration web interface. This is saved as comment inside the configuration file.",
 250     },
 251     ostype => {
 252         optional => 1,
 253         type => 'string',
 254         enum => [qw(other wxp w2k w2k3 w2k8 wvista win7 win8 l24 l26 solaris)],
 255         description => <<EODESC,
 256 Used to enable special optimization/features for specific
 257 operating systems:
 258
 259 other  => unspecified OS
 260 wxp    => Microsoft Windows XP
 261 w2k    => Microsoft Windows 2000
 262 w2k3   => Microsoft Windows 2003
 263 w2k8   => Microsoft Windows 2008
 264 wvista => Microsoft Windows Vista
 265 win7   => Microsoft Windows 7
 266 win8   => Microsoft Windows 8/2012
 267 l24    => Linux 2.4 Kernel
 268 l26    => Linux 2.6/3.X Kernel
 269 solaris => solaris/opensolaris/openindiania kernel
 270
 271 other|l24|l26|solaris                       ... no special behaviour
 272 wxp|w2k|w2k3|w2k8|wvista|win7|win8  ... use --localtime switch
 273 EODESC
 274     },
 275     boot => {
 276         optional => 1,
 277         type => 'string',
 278         description => "Boot on floppy (a), hard disk (c), CD-ROM (d), or network (n).",
 279         pattern => '[acdn]{1,4}',
 280         default => 'cdn',
 281     },
 282     bootdisk => {
 283         optional => 1,
 284         type => 'string', format => 'pve-qm-bootdisk',
 285         description => "Enable booting from specified disk.",
 286         pattern => '(ide|sata|scsi|virtio)\d+',
 287     },
 288     smp => {
 289         optional => 1,
 290         type => 'integer',
 291         description => "The number of CPUs. Please use option -sockets instead.",
 292         minimum => 1,
 293         default => 1,
 294     },
 295     sockets => {
 296         optional => 1,
 297         type => 'integer',
 298         description => "The number of CPU sockets.",
 299         minimum => 1,
 300         default => 1,
 301     },
 302     cores => {
 303         optional => 1,
 304         type => 'integer',
 305         description => "The number of cores per socket.",
 306         minimum => 1,
 307         default => 1,
 308     },
 309     numa => {
 310         optional => 1,
 311         type => 'boolean',
 312         description => "Enable/disable Numa.",
 313         default => 0,
 314     },
 315     vcpus => {
 316         optional => 1,
 317         type => 'integer',
 318         description => "Number of hotplugged vcpus.",
 319         minimum => 1,
 320         default => 0,
 321     },
 322     acpi => {
 323         optional => 1,
 324         type => 'boolean',
 325         description => "Enable/disable ACPI.",
 326         default => 1,
 327     },
 328     agent => {
 329         optional => 1,
 330         type => 'boolean',
 331         description => "Enable/disable Qemu GuestAgent.",
 332         default => 0,
 333     },
 334     kvm => {
 335         optional => 1,
 336         type => 'boolean',
 337         description => "Enable/disable KVM hardware virtualization.",
 338         default => 1,
 339     },
 340     tdf => {
 341         optional => 1,
 342         type => 'boolean',
 343         description => "Enable/disable time drift fix.",
 344         default => 0,
 345     },
 346     localtime => {
 347         optional => 1,
 348         type => 'boolean',
 349         description => "Set the real time clock to local time. This is enabled by default if ostype indicates a Microsoft OS.",
 350     },
 351     freeze => {
 352         optional => 1,
 353         type => 'boolean',
 354         description => "Freeze CPU at startup (use 'c' monitor command to start execution).",
 355     },
 356     vga => {
 357         optional => 1,
 358         type => 'string',
 359         description => "Select VGA type. If you want to use high resolution modes (>= 1280x1024x16) then you should use option 'std' or 'vmware'. Default is 'std' for win8/win7/w2k8, and 'cirrur' for other OS types. Option 'qxl' enables the SPICE display sever. You can also run without any graphic card using a serial devive as terminal.",
 360         enum => [qw(std cirrus vmware qxl serial0 serial1 serial2 serial3 qxl2 qxl3 qxl4)],
 361     },
 362     watchdog => {
 363         optional => 1,
 364         type => 'string', format => 'pve-qm-watchdog',
 365         typetext => '[[model=]i6300esb|ib700] [,[action=]reset|shutdown|poweroff|pause|debug|none]',
 366         description => "Create a virtual hardware watchdog device.  Once enabled (by a guest action), the watchdog must be periodically polled by an agent inside the guest or else the guest will be restarted (or execute the action specified)",
 367     },
 368     startdate => {
 369         optional => 1,
 370         type => 'string',
 371         typetext => "(now | YYYY-MM-DD | YYYY-MM-DDTHH:MM:SS)",
 372         description => "Set the initial date of the real time clock. Valid format for date are: 'now' or '2006-06-17T16:01:21' or '2006-06-17'.",
 373         pattern => '(now|\d{4}-\d{1,2}-\d{1,2}(T\d{1,2}:\d{1,2}:\d{1,2})?)',
 374         default => 'now',
 375     },
 376     startup => {
 377         optional => 1,
 378         type => 'string', format => 'pve-qm-startup',
 379         typetext => '[[order=]\d+] [,up=\d+] [,down=\d+] ',
 380         description => "Startup and shutdown behavior. Order is a non-negative number defining the general startup order. Shutdown in done with reverse ordering. Additionally you can set the 'up' or 'down' delay in seconds, which specifies a delay to wait before the next VM is started or stopped.",
 381     },
 382     template => {
 383         optional => 1,
 384         type => 'boolean',
 385         description => "Enable/disable Template.",
 386         default => 0,
 387     },
 388     args => {
 389         optional => 1,
 390         type => 'string',
 391         description => <<EODESCR,
 392 Note: this option is for experts only. It allows you to pass arbitrary arguments to kvm, for example:
 393
 394 args: -no-reboot -no-hpet
 395 EODESCR
 396     },
 397     tablet => {
 398         optional => 1,
 399         type => 'boolean',
 400         default => 1,
 401         description => "Enable/disable the usb tablet device. This device is usually needed to allow absolute mouse positioning with VNC. Else the mouse runs out of sync with normal VNC clients. If you're running lots of console-only guests on one host, you may consider disabling this to save some context switches. This is turned of by default if you use spice (vga=qxl).",
 402     },
 403     migrate_speed => {
 404         optional => 1,
 405         type => 'integer',
 406         description => "Set maximum speed (in MB/s) for migrations. Value 0 is no limit.",
 407         minimum => 0,
 408         default => 0,
 409     },
 410     migrate_downtime => {
 411         optional => 1,
 412         type => 'number',
 413         description => "Set maximum tolerated downtime (in seconds) for migrations.",
 414         minimum => 0,
 415         default => 0.1,
 416     },
 417     cdrom => {
 418         optional => 1,
 419         type => 'string', format => 'pve-qm-drive',
 420         typetext => 'volume',
 421         description => "This is an alias for option -ide2",
 422     },
 423     cpu => {
 424         optional => 1,
 425         description => "Emulated CPU type.",
 426         type => 'string',
 427         enum => [ qw(486 athlon pentium pentium2 pentium3 coreduo core2duo kvm32 kvm64 qemu32 qemu64 phenom Conroe Penryn Nehalem Westmere SandyBridge Haswell Broadwell Opteron_G1 Opteron_G2 Opteron_G3 Opteron_G4 Opteron_G5 host) ],
 428         default => 'kvm64',
 429     },
 430     parent => get_standard_option('pve-snapshot-name', {
 431         optional => 1,
 432         description => "Parent snapshot name. This is used internally, and should not be modified.",
 433     }),
 434     snaptime => {
 435         optional => 1,
 436         description => "Timestamp for snapshots.",
 437         type => 'integer',
 438         minimum => 0,
 439     },
 440     vmstate => {
 441         optional => 1,
 442         type => 'string', format => 'pve-volume-id',
 443         description => "Reference to a volume which stores the VM state. This is used internally for snapshots.",
 444     },
 445     machine => {
 446         description => "Specific the Qemu machine type.",
 447         type => 'string',
 448         pattern => '(pc|pc(-i440fx)?-\d+\.\d+|q35|pc-q35-\d+\.\d+)',
 449         maxLength => 40,
 450         optional => 1,
 451     },
 452     smbios1 => {
 453         description => "Specify SMBIOS type 1 fields.",
 454         type => 'string', format => 'pve-qm-smbios1',
 455         typetext => "[manufacturer=str][,product=str][,version=str][,serial=str] [,uuid=uuid][,sku=str][,family=str]",
 456         maxLength => 256,
 457         optional => 1,
 458     },
 459 };
 460
 461 # what about other qemu settings ?
 462 #cpu => 'string',
 463 #machine => 'string',
 464 #fda => 'file',
 465 #fdb => 'file',
 466 #mtdblock => 'file',
 467 #sd => 'file',
 468 #pflash => 'file',
 469 #snapshot => 'bool',
 470 #bootp => 'file',
 471 ##tftp => 'dir',
 472 ##smb => 'dir',
 473 #kernel => 'file',
 474 #append => 'string',
 475 #initrd => 'file',
 476 ##soundhw => 'string',
 477
 478 while (my ($k, $v) = each %$confdesc) {
 479     PVE::JSONSchema::register_standard_option("pve-qm-$k", $v);
 480 }
 481
 482 my $MAX_IDE_DISKS = 4;
 483 my $MAX_SCSI_DISKS = 14;
 484 my $MAX_VIRTIO_DISKS = 16;
 485 my $MAX_SATA_DISKS = 6;
 486 my $MAX_USB_DEVICES = 5;
 487 my $MAX_NETS = 32;
 488 my $MAX_UNUSED_DISKS = 8;
 489 my $MAX_HOSTPCI_DEVICES = 4;
 490 my $MAX_SERIAL_PORTS = 4;
 491 my $MAX_PARALLEL_PORTS = 3;
 492 my $MAX_NUMA = 8;
 493 my $MAX_MEM = 4194304;
 494 my $STATICMEM = 1024;
 495
 496 my $numadesc = {
 497     optional => 1,
 498     type => 'string', format => 'pve-qm-numanode',
 499     typetext => "cpus=<id[-id],memory=<mb>[[,hostnodes=<id[-id]>] [,policy=<preferred|bind|interleave>]]",
 500     description => "numa topology",
 501 };
 502 PVE::JSONSchema::register_standard_option("pve-qm-numanode", $numadesc);
 503
 504 for (my $i = 0; $i < $MAX_NUMA; $i++)  {
 505     $confdesc->{"numa$i"} = $numadesc;
 506 }
 507
 508 my $nic_model_list = ['rtl8139', 'ne2k_pci', 'e1000',  'pcnet',  'virtio',
 509                       'ne2k_isa', 'i82551', 'i82557b', 'i82559er', 'vmxnet3',
 510                       'e1000-82540em', 'e1000-82544gc', 'e1000-82545em'];
 511 my $nic_model_list_txt = join(' ', sort @$nic_model_list);
 512
 513 my $netdesc = {
 514     optional => 1,
 515     type => 'string', format => 'pve-qm-net',
 516     typetext => "MODEL=XX:XX:XX:XX:XX:XX [,bridge=<dev>][,queues=<nbqueues>][,rate=<mbps>] [,tag=<vlanid>][,firewall=0|1],link_down=0|1]",
 517     description => <<EODESCR,
 518 Specify network devices.
 519
 520 MODEL is one of: $nic_model_list_txt
 521
 522 XX:XX:XX:XX:XX:XX should be an unique MAC address. This is
 523 automatically generated if not specified.
 524
 525 The bridge parameter can be used to automatically add the interface to a bridge device. The Proxmox VE standard bridge is called 'vmbr0'.
 526
 527 Option 'rate' is used to limit traffic bandwidth from and to this interface. It is specified as floating point number, unit is 'Megabytes per second'.
 528
 529 If you specify no bridge, we create a kvm 'user' (NATed) network device, which provides DHCP and DNS services. The following addresses are used:
 530
 531 10.0.2.2   Gateway
 532 10.0.2.3   DNS Server
 533 10.0.2.4   SMB Server
 534
 535 The DHCP server assign addresses to the guest starting from 10.0.2.15.
 536
 537 EODESCR
 538 };
 539 PVE::JSONSchema::register_standard_option("pve-qm-net", $netdesc);
 540
 541 for (my $i = 0; $i < $MAX_NETS; $i++)  {
 542     $confdesc->{"net$i"} = $netdesc;
 543 }
 544
 545 my $drivename_hash;
 546
 547 my $idedesc = {
 548     optional => 1,
 549     type => 'string', format => 'pve-qm-drive',
 550     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads] [,discard=ignore|on]',
 551     description => "Use volume as IDE hard disk or CD-ROM (n is 0 to " .($MAX_IDE_DISKS -1) . ").",
 552 };
 553 PVE::JSONSchema::register_standard_option("pve-qm-ide", $idedesc);
 554
 555 my $scsidesc = {
 556     optional => 1,
 557     type => 'string', format => 'pve-qm-drive',
 558     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads] [,discard=ignore|on]',
 559     description => "Use volume as SCSI hard disk or CD-ROM (n is 0 to " . ($MAX_SCSI_DISKS - 1) . ").",
 560 };
 561 PVE::JSONSchema::register_standard_option("pve-qm-scsi", $scsidesc);
 562
 563 my $satadesc = {
 564     optional => 1,
 565     type => 'string', format => 'pve-qm-drive',
 566     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads]  [,discard=ignore|on]',
 567     description => "Use volume as SATA hard disk or CD-ROM (n is 0 to " . ($MAX_SATA_DISKS - 1). ").",
 568 };
 569 PVE::JSONSchema::register_standard_option("pve-qm-sata", $satadesc);
 570
 571 my $virtiodesc = {
 572     optional => 1,
 573     type => 'string', format => 'pve-qm-drive',
 574     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads]  [,discard=ignore|on]',
 575     description => "Use volume as VIRTIO hard disk (n is 0 to " . ($MAX_VIRTIO_DISKS - 1) . ").",
 576 };
 577 PVE::JSONSchema::register_standard_option("pve-qm-virtio", $virtiodesc);
 578
 579 my $usbdesc = {
 580     optional => 1,
 581     type => 'string', format => 'pve-qm-usb-device',
 582     typetext => 'host=HOSTUSBDEVICE|spice',
 583     description => <<EODESCR,
 584 Configure an USB device (n is 0 to 4). This can be used to
 585 pass-through usb devices to the guest. HOSTUSBDEVICE syntax is:
 586
 587 'bus-port(.port)*' (decimal numbers) or
 588 'vendor_id:product_id' (hexadeciaml numbers)
 589
 590 You can use the 'lsusb -t' command to list existing usb devices.
 591
 592 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 593
 594 The value 'spice' can be used to add a usb redirection devices for spice.
 595
 596 EODESCR
 597 };
 598 PVE::JSONSchema::register_standard_option("pve-qm-usb", $usbdesc);
 599
 600 my $hostpcidesc = {
 601         optional => 1,
 602         type => 'string', format => 'pve-qm-hostpci',
 603         typetext => "[host=]HOSTPCIDEVICE [,driver=kvm|vfio] [,rombar=on|off] [,pcie=0|1] [,x-vga=on|off]",
 604         description => <<EODESCR,
 605 Map host pci devices. HOSTPCIDEVICE syntax is:
 606
 607 'bus:dev.func' (hexadecimal numbers)
 608
 609 You can us the 'lspci' command to list existing pci devices.
 610
 611 The 'rombar' option determines whether or not the device's ROM will be visible in the guest's memory map (default is 'on').
 612
 613 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 614
 615 Experimental: user reported problems with this option.
 616 EODESCR
 617 };
 618 PVE::JSONSchema::register_standard_option("pve-qm-hostpci", $hostpcidesc);
 619
 620 my $serialdesc = {
 621         optional => 1,
 622         type => 'string',
 623         pattern => '(/dev/.+|socket)',
 624         description =>  <<EODESCR,
 625 Create a serial device inside the VM (n is 0 to 3), and pass through a host serial device (i.e. /dev/ttyS0), or create a unix socket on the host side (use 'qm terminal' to open a terminal connection).
 626
 627 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 628
 629 Experimental: user reported problems with this option.
 630 EODESCR
 631 };
 632
 633 my $paralleldesc= {
 634         optional => 1,
 635         type => 'string',
 636         pattern => '/dev/parport\d+|/dev/usb/lp\d+',
 637         description =>  <<EODESCR,
 638 Map host parallel devices (n is 0 to 2).
 639
 640 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 641
 642 Experimental: user reported problems with this option.
 643 EODESCR
 644 };
 645
 646 for (my $i = 0; $i < $MAX_PARALLEL_PORTS; $i++)  {
 647     $confdesc->{"parallel$i"} = $paralleldesc;
 648 }
 649
 650 for (my $i = 0; $i < $MAX_SERIAL_PORTS; $i++)  {
 651     $confdesc->{"serial$i"} = $serialdesc;
 652 }
 653
 654 for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
 655     $confdesc->{"hostpci$i"} = $hostpcidesc;
 656 }
 657
 658 for (my $i = 0; $i < $MAX_IDE_DISKS; $i++)  {
 659     $drivename_hash->{"ide$i"} = 1;
 660     $confdesc->{"ide$i"} = $idedesc;
 661 }
 662
 663 for (my $i = 0; $i < $MAX_SATA_DISKS; $i++)  {
 664     $drivename_hash->{"sata$i"} = 1;
 665     $confdesc->{"sata$i"} = $satadesc;
 666 }
 667
 668 for (my $i = 0; $i < $MAX_SCSI_DISKS; $i++)  {
 669     $drivename_hash->{"scsi$i"} = 1;
 670     $confdesc->{"scsi$i"} = $scsidesc ;
 671 }
 672
 673 for (my $i = 0; $i < $MAX_VIRTIO_DISKS; $i++)  {
 674     $drivename_hash->{"virtio$i"} = 1;
 675     $confdesc->{"virtio$i"} = $virtiodesc;
 676 }
 677
 678 for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
 679     $confdesc->{"usb$i"} = $usbdesc;
 680 }
 681
 682 my $unuseddesc = {
 683     optional => 1,
 684     type => 'string', format => 'pve-volume-id',
 685     description => "Reference to unused volumes.",
 686 };
 687
 688 for (my $i = 0; $i < $MAX_UNUSED_DISKS; $i++)  {
 689     $confdesc->{"unused$i"} = $unuseddesc;
 690 }
 691
 692 my $kvm_api_version = 0;
 693
 694 sub kvm_version {
 695
 696     return $kvm_api_version if $kvm_api_version;
 697
 698     my $fh = IO::File->new("</dev/kvm") ||
 699         return 0;
 700
 701     if (my $v = $fh->ioctl(KVM_GET_API_VERSION(), 0)) {
 702         $kvm_api_version = $v;
 703     }
 704
 705     $fh->close();
 706
 707     return  $kvm_api_version;
 708 }
 709
 710 my $kvm_user_version;
 711
 712 sub kvm_user_version {
 713
 714     return $kvm_user_version if $kvm_user_version;
 715
 716     $kvm_user_version = 'unknown';
 717
 718     my $tmp = `kvm -help 2>/dev/null`;
 719
 720     if ($tmp =~ m/^QEMU( PC)? emulator version (\d+\.\d+(\.\d+)?)[,\s]/) {
 721         $kvm_user_version = $2;
 722     }
 723
 724     return $kvm_user_version;
 725
 726 }
 727
 728 my $kernel_has_vhost_net = -c '/dev/vhost-net';
 729
 730 sub disknames {
 731     # order is important - used to autoselect boot disk
 732     return ((map { "ide$_" } (0 .. ($MAX_IDE_DISKS - 1))),
 733             (map { "scsi$_" } (0 .. ($MAX_SCSI_DISKS - 1))),
 734             (map { "virtio$_" } (0 .. ($MAX_VIRTIO_DISKS - 1))),
 735             (map { "sata$_" } (0 .. ($MAX_SATA_DISKS - 1))));
 736 }
 737
 738 sub valid_drivename {
 739     my $dev = shift;
 740
 741     return defined($drivename_hash->{$dev});
 742 }
 743
 744 sub option_exists {
 745     my $key = shift;
 746     return defined($confdesc->{$key});
 747 }
 748
 749 sub nic_models {
 750     return $nic_model_list;
 751 }
 752
 753 sub os_list_description {
 754
 755     return {
 756         other => 'Other',
 757         wxp => 'Windows XP',
 758         w2k => 'Windows 2000',
 759         w2k3 =>, 'Windows 2003',
 760         w2k8 => 'Windows 2008',
 761         wvista => 'Windows Vista',
 762         win7 => 'Windows 7',
 763         win8 => 'Windows 8/2012',
 764         l24 => 'Linux 2.4',
 765         l26 => 'Linux 2.6',
 766     };
 767 }
 768
 769 my $cdrom_path;
 770
 771 sub get_cdrom_path {
 772
 773     return  $cdrom_path if $cdrom_path;
 774
 775     return $cdrom_path = "/dev/cdrom" if -l "/dev/cdrom";
 776     return $cdrom_path = "/dev/cdrom1" if -l "/dev/cdrom1";
 777     return $cdrom_path = "/dev/cdrom2" if -l "/dev/cdrom2";
 778 }
 779
 780 sub get_iso_path {
 781     my ($storecfg, $vmid, $cdrom) = @_;
 782
 783     if ($cdrom eq 'cdrom') {
 784         return get_cdrom_path();
 785     } elsif ($cdrom eq 'none') {
 786         return '';
 787     } elsif ($cdrom =~ m|^/|) {
 788         return $cdrom;
 789     } else {
 790         return PVE::Storage::path($storecfg, $cdrom);
 791     }
 792 }
 793
 794 # try to convert old style file names to volume IDs
 795 sub filename_to_volume_id {
 796     my ($vmid, $file, $media) = @_;
 797
 798     if (!($file eq 'none' || $file eq 'cdrom' ||
 799           $file =~ m|^/dev/.+| || $file =~ m/^([^:]+):(.+)$/)) {
 800
 801         return undef if $file =~ m|/|;
 802
 803         if ($media && $media eq 'cdrom') {
 804             $file = "local:iso/$file";
 805         } else {
 806             $file = "local:$vmid/$file";
 807         }
 808     }
 809
 810     return $file;
 811 }
 812
 813 sub verify_media_type {
 814     my ($opt, $vtype, $media) = @_;
 815
 816     return if !$media;
 817
 818     my $etype;
 819     if ($media eq 'disk') {
 820         $etype = 'images';
 821     } elsif ($media eq 'cdrom') {
 822         $etype = 'iso';
 823     } else {
 824         die "internal error";
 825     }
 826
 827     return if ($vtype eq $etype);
 828
 829     raise_param_exc({ $opt => "unexpected media type ($vtype != $etype)" });
 830 }
 831
 832 sub cleanup_drive_path {
 833     my ($opt, $storecfg, $drive) = @_;
 834
 835     # try to convert filesystem paths to volume IDs
 836
 837     if (($drive->{file} !~ m/^(cdrom|none)$/) &&
 838         ($drive->{file} !~ m|^/dev/.+|) &&
 839         ($drive->{file} !~ m/^([^:]+):(.+)$/) &&
 840         ($drive->{file} !~ m/^\d+$/)) {
 841         my ($vtype, $volid) = PVE::Storage::path_to_volume_id($storecfg, $drive->{file});
 842         raise_param_exc({ $opt => "unable to associate path '$drive->{file}' to any storage"}) if !$vtype;
 843         $drive->{media} = 'cdrom' if !$drive->{media} && $vtype eq 'iso';
 844         verify_media_type($opt, $vtype, $drive->{media});
 845         $drive->{file} = $volid;
 846     }
 847
 848     $drive->{media} = 'cdrom' if !$drive->{media} && $drive->{file} =~ m/^(cdrom|none)$/;
 849 }
 850
 851 sub create_conf_nolock {
 852     my ($vmid, $settings) = @_;
 853
 854     my $filename = config_file($vmid);
 855
 856     die "configuration file '$filename' already exists\n" if -f $filename;
 857
 858     my $defaults = load_defaults();
 859
 860     $settings->{name} = "vm$vmid" if !$settings->{name};
 861     $settings->{memory} = $defaults->{memory} if !$settings->{memory};
 862
 863     my $data = '';
 864     foreach my $opt (keys %$settings) {
 865         next if !$confdesc->{$opt};
 866
 867         my $value = $settings->{$opt};
 868         next if !$value;
 869
 870         $data .= "$opt: $value\n";
 871     }
 872
 873     PVE::Tools::file_set_contents($filename, $data);
 874 }
 875
 876 sub parse_hotplug_features {
 877     my ($data) = @_;
 878
 879     my $res = {};
 880
 881     return $res if $data eq '0';
 882
 883     $data = $confdesc->{hotplug}->{default} if $data eq '1';
 884
 885     foreach my $feature (PVE::Tools::split_list($data)) {
 886         if ($feature =~ m/^(network|disk|cpu|memory|usb)$/) {
 887             $res->{$1} = 1;
 888         } else {
 889             warn "ignoring unknown hotplug feature '$feature'\n";
 890         }
 891     }
 892     return $res;
 893 }
 894
 895 PVE::JSONSchema::register_format('pve-hotplug-features', \&pve_verify_hotplug_features);
 896 sub pve_verify_hotplug_features {
 897     my ($value, $noerr) = @_;
 898
 899     return $value if parse_hotplug_features($value);
 900
 901     return undef if $noerr;
 902
 903     die "unable to parse hotplug option\n";
 904 }
 905
 906 my $parse_size = sub {
 907     my ($value) = @_;
 908
 909     return undef if $value !~ m/^(\d+(\.\d+)?)([KMG])?$/;
 910     my ($size, $unit) = ($1, $3);
 911     if ($unit) {
 912         if ($unit eq 'K') {
 913             $size = $size * 1024;
 914         } elsif ($unit eq 'M') {
 915             $size = $size * 1024 * 1024;
 916         } elsif ($unit eq 'G') {
 917             $size = $size * 1024 * 1024 * 1024;
 918         }
 919     }
 920     return int($size);
 921 };
 922
 923 my $format_size = sub {
 924     my ($size) = @_;
 925
 926     $size = int($size);
 927
 928     my $kb = int($size/1024);
 929     return $size if $kb*1024 != $size;
 930
 931     my $mb = int($kb/1024);
 932     return "${kb}K" if $mb*1024 != $kb;
 933
 934     my $gb = int($mb/1024);
 935     return "${mb}M" if $gb*1024 != $mb;
 936
 937     return "${gb}G";
 938 };
 939
 940 # ideX = [volume=]volume-id[,media=d][,cyls=c,heads=h,secs=s[,trans=t]]
 941 #        [,snapshot=on|off][,cache=on|off][,format=f][,backup=yes|no]
 942 #        [,rerror=ignore|report|stop][,werror=enospc|ignore|report|stop]
 943 #        [,aio=native|threads][,discard=ignore|on]
 944
 945 sub parse_drive {
 946     my ($key, $data) = @_;
 947
 948     my $res = {};
 949
 950     # $key may be undefined - used to verify JSON parameters
 951     if (!defined($key)) {
 952         $res->{interface} = 'unknown'; # should not harm when used to verify parameters
 953         $res->{index} = 0;
 954     } elsif ($key =~ m/^([^\d]+)(\d+)$/) {
 955         $res->{interface} = $1;
 956         $res->{index} = $2;
 957     } else {
 958         return undef;
 959     }
 960
 961     foreach my $p (split (/,/, $data)) {
 962         next if $p =~ m/^\s*$/;
 963
 964         if ($p =~ m/^(file|volume|cyls|heads|secs|trans|media|snapshot|cache|format|rerror|werror|backup|aio|bps|mbps|mbps_max|bps_rd|mbps_rd|mbps_rd_max|bps_wr|mbps_wr|mbps_wr_max|iops|iops_max|iops_rd|iops_rd_max|iops_wr|iops_wr_max|size|discard)=(.+)$/) {
 965             my ($k, $v) = ($1, $2);
 966
 967             $k = 'file' if $k eq 'volume';
 968
 969             return undef if defined $res->{$k};
 970
 971             if ($k eq 'bps' || $k eq 'bps_rd' || $k eq 'bps_wr') {
 972                 return undef if !$v || $v !~ m/^\d+/;
 973                 $k = "m$k";
 974                 $v = sprintf("%.3f", $v / (1024*1024));
 975             }
 976             $res->{$k} = $v;
 977         } else {
 978             if (!$res->{file} && $p !~ m/=/) {
 979                 $res->{file} = $p;
 980             } else {
 981                 return undef;
 982             }
 983         }
 984     }
 985
 986     return undef if !$res->{file};
 987
 988     if($res->{file} =~ m/\.(raw|cow|qcow|qcow2|vmdk|cloop)$/){
 989         $res->{format} = $1;
 990     }
 991
 992     return undef if $res->{cache} &&
 993         $res->{cache} !~ m/^(off|none|writethrough|writeback|unsafe|directsync)$/;
 994     return undef if $res->{snapshot} && $res->{snapshot} !~ m/^(on|off)$/;
 995     return undef if $res->{cyls} && $res->{cyls} !~ m/^\d+$/;
 996     return undef if $res->{heads} && $res->{heads} !~ m/^\d+$/;
 997     return undef if $res->{secs} && $res->{secs} !~ m/^\d+$/;
 998     return undef if $res->{media} && $res->{media} !~ m/^(disk|cdrom)$/;
 999     return undef if $res->{trans} && $res->{trans} !~ m/^(none|lba|auto)$/;
1000     return undef if $res->{format} && $res->{format} !~ m/^(raw|cow|qcow|qcow2|vmdk|cloop)$/;
1001     return undef if $res->{rerror} && $res->{rerror} !~ m/^(ignore|report|stop)$/;
1002     return undef if $res->{werror} && $res->{werror} !~ m/^(enospc|ignore|report|stop)$/;
1003     return undef if $res->{backup} && $res->{backup} !~ m/^(yes|no)$/;
1004     return undef if $res->{aio} && $res->{aio} !~ m/^(native|threads)$/;
1005     return undef if $res->{discard} && $res->{discard} !~ m/^(ignore|on)$/;
1006
1007     return undef if $res->{mbps_rd} && $res->{mbps};
1008     return undef if $res->{mbps_wr} && $res->{mbps};
1009
1010     return undef if $res->{mbps} && $res->{mbps} !~ m/^\d+(\.\d+)?$/;
1011     return undef if $res->{mbps_max} && $res->{mbps_max} !~ m/^\d+(\.\d+)?$/;
1012     return undef if $res->{mbps_rd} && $res->{mbps_rd} !~ m/^\d+(\.\d+)?$/;
1013     return undef if $res->{mbps_rd_max} && $res->{mbps_rd_max} !~ m/^\d+(\.\d+)?$/;
1014     return undef if $res->{mbps_wr} && $res->{mbps_wr} !~ m/^\d+(\.\d+)?$/;
1015     return undef if $res->{mbps_wr_max} && $res->{mbps_wr_max} !~ m/^\d+(\.\d+)?$/;
1016
1017     return undef if $res->{iops_rd} && $res->{iops};
1018     return undef if $res->{iops_wr} && $res->{iops};
1019
1020
1021     return undef if $res->{iops} && $res->{iops} !~ m/^\d+$/;
1022     return undef if $res->{iops_max} && $res->{iops_max} !~ m/^\d+$/;
1023     return undef if $res->{iops_rd} && $res->{iops_rd} !~ m/^\d+$/;
1024     return undef if $res->{iops_rd_max} && $res->{iops_rd_max} !~ m/^\d+$/;
1025     return undef if $res->{iops_wr} && $res->{iops_wr} !~ m/^\d+$/;
1026     return undef if $res->{iops_wr_max} && $res->{iops_wr_max} !~ m/^\d+$/;
1027
1028
1029     if ($res->{size}) {
1030         return undef if !defined($res->{size} = &$parse_size($res->{size}));
1031     }
1032
1033     if ($res->{media} && ($res->{media} eq 'cdrom')) {
1034         return undef if $res->{snapshot} || $res->{trans} || $res->{format};
1035         return undef if $res->{heads} || $res->{secs} || $res->{cyls};
1036         return undef if $res->{interface} eq 'virtio';
1037     }
1038
1039     # rerror does not work with scsi drives
1040     if ($res->{rerror}) {
1041         return undef if $res->{interface} eq 'scsi';
1042     }
1043
1044     return $res;
1045 }
1046
1047 my @qemu_drive_options = qw(heads secs cyls trans media format cache snapshot rerror werror aio discard iops iops_rd iops_wr iops_max iops_rd_max iops_wr_max);
1048
1049 sub print_drive {
1050     my ($vmid, $drive) = @_;
1051
1052     my $opts = '';
1053     foreach my $o (@qemu_drive_options, 'mbps', 'mbps_rd', 'mbps_wr', 'mbps_max', 'mbps_rd_max', 'mbps_wr_max', 'backup') {
1054         $opts .= ",$o=$drive->{$o}" if $drive->{$o};
1055     }
1056
1057     if ($drive->{size}) {
1058         $opts .= ",size=" . &$format_size($drive->{size});
1059     }
1060
1061     return "$drive->{file}$opts";
1062 }
1063
1064 sub scsi_inquiry {
1065     my($fh, $noerr) = @_;
1066
1067     my $SG_IO = 0x2285;
1068     my $SG_GET_VERSION_NUM = 0x2282;
1069
1070     my $versionbuf = "\x00" x 8;
1071     my $ret = ioctl($fh, $SG_GET_VERSION_NUM, $versionbuf);
1072     if (!$ret) {
1073         die "scsi ioctl SG_GET_VERSION_NUM failoed - $!\n" if !$noerr;
1074         return undef;
1075     }
1076     my $version = unpack("I", $versionbuf);
1077     if ($version < 30000) {
1078         die "scsi generic interface too old\n"  if !$noerr;
1079         return undef;
1080     }
1081
1082     my $buf = "\x00" x 36;
1083     my $sensebuf = "\x00" x 8;
1084     my $cmd = pack("C x3 C x1", 0x12, 36);
1085
1086     # see /usr/include/scsi/sg.h
1087     my $sg_io_hdr_t = "i i C C s I P P P I I i P C C C C S S i I I";
1088
1089     my $packet = pack($sg_io_hdr_t, ord('S'), -3, length($cmd),
1090                       length($sensebuf), 0, length($buf), $buf,
1091                       $cmd, $sensebuf, 6000);
1092
1093     $ret = ioctl($fh, $SG_IO, $packet);
1094     if (!$ret) {
1095         die "scsi ioctl SG_IO failed - $!\n" if !$noerr;
1096         return undef;
1097     }
1098
1099     my @res = unpack($sg_io_hdr_t, $packet);
1100     if ($res[17] || $res[18]) {
1101         die "scsi ioctl SG_IO status error - $!\n" if !$noerr;
1102         return undef;
1103     }
1104
1105     my $res = {};
1106     (my $byte0, my $byte1, $res->{vendor},
1107      $res->{product}, $res->{revision}) = unpack("C C x6 A8 A16 A4", $buf);
1108
1109     $res->{removable} = $byte1 & 128 ? 1 : 0;
1110     $res->{type} = $byte0 & 31;
1111
1112     return $res;
1113 }
1114
1115 sub path_is_scsi {
1116     my ($path) = @_;
1117
1118     my $fh = IO::File->new("+<$path") || return undef;
1119     my $res = scsi_inquiry($fh, 1);
1120     close($fh);
1121
1122     return $res;
1123 }
1124
1125 sub machine_type_is_q35 {
1126     my ($conf) = @_;
1127
1128     return $conf->{machine} && ($conf->{machine} =~ m/q35/) ? 1 : 0;
1129 }
1130
1131 sub print_tabletdevice_full {
1132     my ($conf) = @_;
1133
1134     my $q35 = machine_type_is_q35($conf);
1135
1136     # we use uhci for old VMs because tablet driver was buggy in older qemu
1137     my $usbbus = $q35 ? "ehci" : "uhci";
1138
1139     return "usb-tablet,id=tablet,bus=$usbbus.0,port=1";
1140 }
1141
1142 sub print_drivedevice_full {
1143     my ($storecfg, $conf, $vmid, $drive, $bridges) = @_;
1144
1145     my $device = '';
1146     my $maxdev = 0;
1147
1148     if ($drive->{interface} eq 'virtio') {
1149         my $pciaddr = print_pci_addr("$drive->{interface}$drive->{index}", $bridges);
1150         $device = "virtio-blk-pci,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}$pciaddr";
1151         $device .= ",iothread=iothread0" if $conf->{iothread};
1152     } elsif ($drive->{interface} eq 'scsi') {
1153         $maxdev = ($conf->{scsihw} && ($conf->{scsihw} !~ m/^lsi/)) ? 256 : 7;
1154         my $controller = int($drive->{index} / $maxdev);
1155         my $unit = $drive->{index} % $maxdev;
1156         my $devicetype = 'hd';
1157         my $path = '';
1158         if (drive_is_cdrom($drive)) {
1159               $devicetype = 'cd';
1160         } else {
1161               if ($drive->{file} =~ m|^/|) {
1162                   $path = $drive->{file};
1163               } else {
1164                   $path = PVE::Storage::path($storecfg, $drive->{file});
1165               }
1166
1167               if($path =~ m/^iscsi\:\/\//){
1168                   $devicetype = 'generic';
1169               } else {
1170                   if (my $info = path_is_scsi($path)) {
1171                       if ($info->{type} == 0) {
1172                           $devicetype = 'block';
1173                       } elsif ($info->{type} == 1) { # tape
1174                           $devicetype = 'generic';
1175                       }
1176                   }
1177               }
1178          }
1179
1180         if (!$conf->{scsihw} || ($conf->{scsihw} =~ m/^lsi/)){
1181             $device = "scsi-$devicetype,bus=scsihw$controller.0,scsi-id=$unit,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1182         } else {
1183             $device = "scsi-$devicetype,bus=scsihw$controller.0,channel=0,scsi-id=0,lun=$drive->{index},drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1184         }
1185
1186     } elsif ($drive->{interface} eq 'ide'){
1187         $maxdev = 2;
1188         my $controller = int($drive->{index} / $maxdev);
1189         my $unit = $drive->{index} % $maxdev;
1190         my $devicetype = ($drive->{media} && $drive->{media} eq 'cdrom') ? "cd" : "hd";
1191
1192         $device = "ide-$devicetype,bus=ide.$controller,unit=$unit,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1193     } elsif ($drive->{interface} eq 'sata'){
1194         my $controller = int($drive->{index} / $MAX_SATA_DISKS);
1195         my $unit = $drive->{index} % $MAX_SATA_DISKS;
1196         $device = "ide-drive,bus=ahci$controller.$unit,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1197     } elsif ($drive->{interface} eq 'usb') {
1198         die "implement me";
1199         #  -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0
1200     } else {
1201         die "unsupported interface type";
1202     }
1203
1204     $device .= ",bootindex=$drive->{bootindex}" if $drive->{bootindex};
1205
1206     return $device;
1207 }
1208
1209 sub get_initiator_name {
1210     my $initiator;
1211
1212     my $fh = IO::File->new('/etc/iscsi/initiatorname.iscsi') || return undef;
1213     while (defined(my $line = <$fh>)) {
1214         next if $line !~ m/^\s*InitiatorName\s*=\s*([\.\-:\w]+)/;
1215         $initiator = $1;
1216         last;
1217     }
1218     $fh->close();
1219
1220     return $initiator;
1221 }
1222
1223 sub print_drive_full {
1224     my ($storecfg, $vmid, $drive) = @_;
1225
1226     my $opts = '';
1227     foreach my $o (@qemu_drive_options) {
1228         next if $o eq 'bootindex';
1229         $opts .= ",$o=$drive->{$o}" if $drive->{$o};
1230     }
1231
1232     foreach my $o (qw(bps bps_rd bps_wr)) {
1233         my $v = $drive->{"m$o"};
1234         $opts .= ",$o=" . int($v*1024*1024) if $v;
1235     }
1236
1237     # use linux-aio by default (qemu default is threads)
1238     $opts .= ",aio=native" if !$drive->{aio};
1239
1240     my $path;
1241     my $volid = $drive->{file};
1242     if (drive_is_cdrom($drive)) {
1243         $path = get_iso_path($storecfg, $vmid, $volid);
1244     } else {
1245         if ($volid =~ m|^/|) {
1246             $path = $volid;
1247         } else {
1248             $path = PVE::Storage::path($storecfg, $volid);
1249         }
1250     }
1251
1252     $opts .= ",cache=none" if !$drive->{cache} && !drive_is_cdrom($drive);
1253
1254     my $detectzeroes = $drive->{discard} ? "unmap" : "on";
1255     $opts .= ",detect-zeroes=$detectzeroes" if !drive_is_cdrom($drive);
1256
1257     my $pathinfo = $path ? "file=$path," : '';
1258
1259     return "${pathinfo}if=none,id=drive-$drive->{interface}$drive->{index}$opts";
1260 }
1261
1262 sub print_netdevice_full {
1263     my ($vmid, $conf, $net, $netid, $bridges) = @_;
1264
1265     my $bootorder = $conf->{boot} || $confdesc->{boot}->{default};
1266
1267     my $device = $net->{model};
1268     if ($net->{model} eq 'virtio') {
1269          $device = 'virtio-net-pci';
1270      };
1271
1272     my $pciaddr = print_pci_addr("$netid", $bridges);
1273     my $tmpstr = "$device,mac=$net->{macaddr},netdev=$netid$pciaddr,id=$netid";
1274     if ($net->{queues} && $net->{queues} > 1 && $net->{model} eq 'virtio'){
1275         #Consider we have N queues, the number of vectors needed is 2*N + 2 (plus one config interrupt and control vq)
1276         my $vectors = $net->{queues} * 2 + 2;
1277         $tmpstr .= ",vectors=$vectors,mq=on";
1278     }
1279     $tmpstr .= ",bootindex=$net->{bootindex}" if $net->{bootindex} ;
1280     return $tmpstr;
1281 }
1282
1283 sub print_netdev_full {
1284     my ($vmid, $conf, $net, $netid) = @_;
1285
1286     my $i = '';
1287     if ($netid =~ m/^net(\d+)$/) {
1288         $i = int($1);
1289     }
1290
1291     die "got strange net id '$i'\n" if $i >= ${MAX_NETS};
1292
1293     my $ifname = "tap${vmid}i$i";
1294
1295     # kvm uses TUNSETIFF ioctl, and that limits ifname length
1296     die "interface name '$ifname' is too long (max 15 character)\n"
1297         if length($ifname) >= 16;
1298
1299     my $vhostparam = '';
1300     $vhostparam = ',vhost=on' if $kernel_has_vhost_net && $net->{model} eq 'virtio';
1301
1302     my $vmname = $conf->{name} || "vm$vmid";
1303
1304     my $netdev = "";
1305
1306     if ($net->{bridge}) {
1307         $netdev = "type=tap,id=$netid,ifname=${ifname},script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown$vhostparam";
1308     } else {
1309         $netdev = "type=user,id=$netid,hostname=$vmname";
1310     }
1311
1312     $netdev .= ",queues=$net->{queues}" if ($net->{queues} && $net->{model} eq 'virtio');
1313
1314     return $netdev;
1315 }
1316
1317 sub drive_is_cdrom {
1318     my ($drive) = @_;
1319
1320     return $drive && $drive->{media} && ($drive->{media} eq 'cdrom');
1321
1322 }
1323
1324 sub parse_numa {
1325     my ($data) = @_;
1326
1327     my $res = {};
1328
1329     foreach my $kvp (split(/,/, $data)) {
1330
1331         if ($kvp =~ m/^memory=(\S+)$/) {
1332             $res->{memory} = $1;
1333         } elsif ($kvp =~ m/^policy=(preferred|bind|interleave)$/) {
1334             $res->{policy} = $1;
1335         } elsif ($kvp =~ m/^cpus=(\d+)(-(\d+))?$/) {
1336             $res->{cpus}->{start} = $1;
1337             $res->{cpus}->{end} = $3;
1338         } elsif ($kvp =~ m/^hostnodes=(\d+)(-(\d+))?$/) {
1339             $res->{hostnodes}->{start} = $1;
1340             $res->{hostnodes}->{end} = $3;
1341         } else {
1342             return undef;
1343         }
1344     }
1345
1346     return $res;
1347 }
1348
1349 sub parse_hostpci {
1350     my ($value) = @_;
1351
1352     return undef if !$value;
1353
1354
1355     my @list = split(/,/, $value);
1356     my $found;
1357
1358     my $res = {};
1359     foreach my $kv (@list) {
1360
1361         if ($kv =~ m/^(host=)?([a-f0-9]{2}:[a-f0-9]{2})(\.([a-f0-9]))?$/) {
1362             $found = 1;
1363             if(defined($4)){
1364                 push @{$res->{pciid}}, { id => $2 , function => $4};
1365
1366             }else{
1367                 my $pcidevices = lspci($2);
1368                 $res->{pciid} = $pcidevices->{$2};
1369             }
1370         } elsif ($kv =~ m/^driver=(kvm|vfio)$/) {
1371             $res->{driver} = $1;
1372         } elsif ($kv =~ m/^rombar=(on|off)$/) {
1373             $res->{rombar} = $1;
1374         } elsif ($kv =~ m/^x-vga=(on|off)$/) {
1375             $res->{'x-vga'} = $1;
1376         } elsif ($kv =~ m/^pcie=(\d+)$/) {
1377             $res->{pcie} = 1 if $1 == 1;
1378         } else {
1379             warn "unknown hostpci setting '$kv'\n";
1380         }
1381     }
1382
1383     return undef if !$found;
1384
1385     return $res;
1386 }
1387
1388 # netX: e1000=XX:XX:XX:XX:XX:XX,bridge=vmbr0,rate=<mbps>
1389 sub parse_net {
1390     my ($data) = @_;
1391
1392     my $res = {};
1393
1394     foreach my $kvp (split(/,/, $data)) {
1395
1396         if ($kvp =~ m/^(ne2k_pci|e1000|e1000-82540em|e1000-82544gc|e1000-82545em|rtl8139|pcnet|virtio|ne2k_isa|i82551|i82557b|i82559er|vmxnet3)(=([0-9a-f]{2}(:[0-9a-f]{2}){5}))?$/i) {
1397             my $model = lc($1);
1398             my $mac = defined($3) ? uc($3) : PVE::Tools::random_ether_addr();
1399             $res->{model} = $model;
1400             $res->{macaddr} = $mac;
1401         } elsif ($kvp =~ m/^bridge=(\S+)$/) {
1402             $res->{bridge} = $1;
1403         } elsif ($kvp =~ m/^queues=(\d+)$/) {
1404             $res->{queues} = $1;
1405         } elsif ($kvp =~ m/^rate=(\d+(\.\d+)?)$/) {
1406             $res->{rate} = $1;
1407         } elsif ($kvp =~ m/^tag=(\d+)$/) {
1408             $res->{tag} = $1;
1409         } elsif ($kvp =~ m/^firewall=([01])$/) {
1410             $res->{firewall} = $1;
1411         } elsif ($kvp =~ m/^link_down=([01])$/) {
1412             $res->{link_down} = $1;
1413         } else {
1414             return undef;
1415         }
1416
1417     }
1418
1419     return undef if !$res->{model};
1420
1421     return $res;
1422 }
1423
1424 sub print_net {
1425     my $net = shift;
1426
1427     my $res = "$net->{model}";
1428     $res .= "=$net->{macaddr}" if $net->{macaddr};
1429     $res .= ",bridge=$net->{bridge}" if $net->{bridge};
1430     $res .= ",rate=$net->{rate}" if $net->{rate};
1431     $res .= ",tag=$net->{tag}" if $net->{tag};
1432     $res .= ",firewall=1" if $net->{firewall};
1433     $res .= ",link_down=1" if $net->{link_down};
1434
1435     return $res;
1436 }
1437
1438 sub add_random_macs {
1439     my ($settings) = @_;
1440
1441     foreach my $opt (keys %$settings) {
1442         next if $opt !~ m/^net(\d+)$/;
1443         my $net = parse_net($settings->{$opt});
1444         next if !$net;
1445         $settings->{$opt} = print_net($net);
1446     }
1447 }
1448
1449 sub add_unused_volume {
1450     my ($config, $volid) = @_;
1451
1452     my $key;
1453     for (my $ind = $MAX_UNUSED_DISKS - 1; $ind >= 0; $ind--) {
1454         my $test = "unused$ind";
1455         if (my $vid = $config->{$test}) {
1456             return if $vid eq $volid; # do not add duplicates
1457         } else {
1458             $key = $test;
1459         }
1460     }
1461
1462     die "To many unused volume - please delete them first.\n" if !$key;
1463
1464     $config->{$key} = $volid;
1465
1466     return $key;
1467 }
1468
1469 sub vm_is_volid_owner {
1470     my ($storecfg, $vmid, $volid) = @_;
1471
1472     if ($volid !~  m|^/|) {
1473         my ($path, $owner);
1474         eval { ($path, $owner) = PVE::Storage::path($storecfg, $volid); };
1475         if ($owner && ($owner == $vmid)) {
1476             return 1;
1477         }
1478     }
1479
1480     return undef;
1481 }
1482
1483 sub vmconfig_delete_pending_option {
1484     my ($conf, $key) = @_;
1485
1486     delete $conf->{pending}->{$key};
1487     my $pending_delete_hash = { $key => 1 };
1488     foreach my $opt (PVE::Tools::split_list($conf->{pending}->{delete})) {
1489         $pending_delete_hash->{$opt} = 1;
1490     }
1491     $conf->{pending}->{delete} = join(',', keys %$pending_delete_hash);
1492 }
1493
1494 sub vmconfig_undelete_pending_option {
1495     my ($conf, $key) = @_;
1496
1497     my $pending_delete_hash = {};
1498     foreach my $opt (PVE::Tools::split_list($conf->{pending}->{delete})) {
1499         $pending_delete_hash->{$opt} = 1;
1500     }
1501     delete $pending_delete_hash->{$key};
1502
1503     my @keylist = keys %$pending_delete_hash;
1504     if (scalar(@keylist)) {
1505         $conf->{pending}->{delete} = join(',', @keylist);
1506     } else {
1507         delete $conf->{pending}->{delete};
1508     }
1509 }
1510
1511 sub vmconfig_register_unused_drive {
1512     my ($storecfg, $vmid, $conf, $drive) = @_;
1513
1514     if (!drive_is_cdrom($drive)) {
1515         my $volid = $drive->{file};
1516         if (vm_is_volid_owner($storecfg, $vmid, $volid)) {
1517             add_unused_volume($conf, $volid, $vmid);
1518         }
1519     }
1520 }
1521
1522 sub vmconfig_cleanup_pending {
1523     my ($conf) = @_;
1524
1525     # remove pending changes when nothing changed
1526     my $changes;
1527     foreach my $opt (keys %{$conf->{pending}}) {
1528         if (defined($conf->{$opt}) && ($conf->{pending}->{$opt} eq  $conf->{$opt})) {
1529             $changes = 1;
1530             delete $conf->{pending}->{$opt};
1531         }
1532     }
1533
1534     # remove delete if option is not set
1535     my $pending_delete_hash = {};
1536     foreach my $opt (PVE::Tools::split_list($conf->{pending}->{delete})) {
1537         if (defined($conf->{$opt})) {
1538             $pending_delete_hash->{$opt} = 1;
1539         } else {
1540             $changes = 1;
1541         }
1542     }
1543
1544     my @keylist = keys %$pending_delete_hash;
1545     if (scalar(@keylist)) {
1546         $conf->{pending}->{delete} = join(',', @keylist);
1547     } else {
1548         delete $conf->{pending}->{delete};
1549     }
1550
1551     return $changes;
1552 }
1553
1554 my $valid_smbios1_options = {
1555     manufacturer => '\S+',
1556     product => '\S+',
1557     version => '\S+',
1558     serial => '\S+',
1559     uuid => '[a-fA-F0-9]{8}(?:-[a-fA-F0-9]{4}){3}-[a-fA-F0-9]{12}',
1560     sku => '\S+',
1561     family => '\S+',
1562 };
1563
1564 # smbios: [manufacturer=str][,product=str][,version=str][,serial=str][,uuid=uuid][,sku=str][,family=str]
1565 sub parse_smbios1 {
1566     my ($data) = @_;
1567
1568     my $res = {};
1569
1570     foreach my $kvp (split(/,/, $data)) {
1571         return undef if $kvp !~ m/^(\S+)=(.+)$/;
1572         my ($k, $v) = split(/=/, $kvp);
1573         return undef if !defined($k) || !defined($v);
1574         return undef if !$valid_smbios1_options->{$k};
1575         return undef if $v !~ m/^$valid_smbios1_options->{$k}$/;
1576         $res->{$k} = $v;
1577     }
1578
1579     return $res;
1580 }
1581
1582 sub print_smbios1 {
1583     my ($smbios1) = @_;
1584
1585     my $data = '';
1586     foreach my $k (keys %$smbios1) {
1587         next if !defined($smbios1->{$k});
1588         next if !$valid_smbios1_options->{$k};
1589         $data .= ',' if $data;
1590         $data .= "$k=$smbios1->{$k}";
1591     }
1592     return $data;
1593 }
1594
1595 PVE::JSONSchema::register_format('pve-qm-smbios1', \&verify_smbios1);
1596 sub verify_smbios1 {
1597     my ($value, $noerr) = @_;
1598
1599     return $value if parse_smbios1($value);
1600
1601     return undef if $noerr;
1602
1603     die "unable to parse smbios (type 1) options\n";
1604 }
1605
1606 PVE::JSONSchema::register_format('pve-qm-bootdisk', \&verify_bootdisk);
1607 sub verify_bootdisk {
1608     my ($value, $noerr) = @_;
1609
1610     return $value if valid_drivename($value);
1611
1612     return undef if $noerr;
1613
1614     die "invalid boot disk '$value'\n";
1615 }
1616
1617 PVE::JSONSchema::register_format('pve-qm-numanode', \&verify_numa);
1618 sub verify_numa {
1619     my ($value, $noerr) = @_;
1620
1621     return $value if parse_numa($value);
1622
1623     return undef if $noerr;
1624
1625     die "unable to parse numa options\n";
1626 }
1627
1628 PVE::JSONSchema::register_format('pve-qm-net', \&verify_net);
1629 sub verify_net {
1630     my ($value, $noerr) = @_;
1631
1632     return $value if parse_net($value);
1633
1634     return undef if $noerr;
1635
1636     die "unable to parse network options\n";
1637 }
1638
1639 PVE::JSONSchema::register_format('pve-qm-drive', \&verify_drive);
1640 sub verify_drive {
1641     my ($value, $noerr) = @_;
1642
1643     return $value if parse_drive(undef, $value);
1644
1645     return undef if $noerr;
1646
1647     die "unable to parse drive options\n";
1648 }
1649
1650 PVE::JSONSchema::register_format('pve-qm-hostpci', \&verify_hostpci);
1651 sub verify_hostpci {
1652     my ($value, $noerr) = @_;
1653
1654     return $value if parse_hostpci($value);
1655
1656     return undef if $noerr;
1657
1658     die "unable to parse pci id\n";
1659 }
1660
1661 PVE::JSONSchema::register_format('pve-qm-watchdog', \&verify_watchdog);
1662 sub verify_watchdog {
1663     my ($value, $noerr) = @_;
1664
1665     return $value if parse_watchdog($value);
1666
1667     return undef if $noerr;
1668
1669     die "unable to parse watchdog options\n";
1670 }
1671
1672 sub parse_watchdog {
1673     my ($value) = @_;
1674
1675     return undef if !$value;
1676
1677     my $res = {};
1678
1679     foreach my $p (split(/,/, $value)) {
1680         next if $p =~ m/^\s*$/;
1681
1682         if ($p =~ m/^(model=)?(i6300esb|ib700)$/) {
1683             $res->{model} = $2;
1684         } elsif ($p =~ m/^(action=)?(reset|shutdown|poweroff|pause|debug|none)$/) {
1685             $res->{action} = $2;
1686         } else {
1687             return undef;
1688         }
1689     }
1690
1691     return $res;
1692 }
1693
1694 PVE::JSONSchema::register_format('pve-qm-startup', \&verify_startup);
1695 sub verify_startup {
1696     my ($value, $noerr) = @_;
1697
1698     return $value if parse_startup($value);
1699
1700     return undef if $noerr;
1701
1702     die "unable to parse startup options\n";
1703 }
1704
1705 sub parse_startup {
1706     my ($value) = @_;
1707
1708     return undef if !$value;
1709
1710     my $res = {};
1711
1712     foreach my $p (split(/,/, $value)) {
1713         next if $p =~ m/^\s*$/;
1714
1715         if ($p =~ m/^(order=)?(\d+)$/) {
1716             $res->{order} = $2;
1717         } elsif ($p =~ m/^up=(\d+)$/) {
1718             $res->{up} = $1;
1719         } elsif ($p =~ m/^down=(\d+)$/) {
1720             $res->{down} = $1;
1721         } else {
1722             return undef;
1723         }
1724     }
1725
1726     return $res;
1727 }
1728
1729 sub parse_usb_device {
1730     my ($value) = @_;
1731
1732     return undef if !$value;
1733
1734     my @dl = split(/,/, $value);
1735     my $found;
1736
1737     my $res = {};
1738     foreach my $v (@dl) {
1739         if ($v =~ m/^host=(0x)?([0-9A-Fa-f]{4}):(0x)?([0-9A-Fa-f]{4})$/) {
1740             $found = 1;
1741             $res->{vendorid} = $2;
1742             $res->{productid} = $4;
1743         } elsif ($v =~ m/^host=(\d+)\-(\d+(\.\d+)*)$/) {
1744             $found = 1;
1745             $res->{hostbus} = $1;
1746             $res->{hostport} = $2;
1747         } elsif ($v =~ m/^spice$/) {
1748             $found = 1;
1749             $res->{spice} = 1;
1750         } else {
1751             return undef;
1752         }
1753     }
1754     return undef if !$found;
1755
1756     return $res;
1757 }
1758
1759 PVE::JSONSchema::register_format('pve-qm-usb-device', \&verify_usb_device);
1760 sub verify_usb_device {
1761     my ($value, $noerr) = @_;
1762
1763     return $value if parse_usb_device($value);
1764
1765     return undef if $noerr;
1766
1767     die "unable to parse usb device\n";
1768 }
1769
1770 # add JSON properties for create and set function
1771 sub json_config_properties {
1772     my $prop = shift;
1773
1774     foreach my $opt (keys %$confdesc) {
1775         next if $opt eq 'parent' || $opt eq 'snaptime' || $opt eq 'vmstate';
1776         $prop->{$opt} = $confdesc->{$opt};
1777     }
1778
1779     return $prop;
1780 }
1781
1782 sub check_type {
1783     my ($key, $value) = @_;
1784
1785     die "unknown setting '$key'\n" if !$confdesc->{$key};
1786
1787     my $type = $confdesc->{$key}->{type};
1788
1789     if (!defined($value)) {
1790         die "got undefined value\n";
1791     }
1792
1793     if ($value =~ m/[\n\r]/) {
1794         die "property contains a line feed\n";
1795     }
1796
1797     if ($type eq 'boolean') {
1798         return 1 if ($value eq '1') || ($value =~ m/^(on|yes|true)$/i);
1799         return 0 if ($value eq '0') || ($value =~ m/^(off|no|false)$/i);
1800         die "type check ('boolean') failed - got '$value'\n";
1801     } elsif ($type eq 'integer') {
1802         return int($1) if $value =~ m/^(\d+)$/;
1803         die "type check ('integer') failed - got '$value'\n";
1804     } elsif ($type eq 'number') {
1805         return $value if $value =~ m/^(\d+)(\.\d+)?$/;
1806         die "type check ('number') failed - got '$value'\n";
1807     } elsif ($type eq 'string') {
1808         if (my $fmt = $confdesc->{$key}->{format}) {
1809             if ($fmt eq 'pve-qm-drive') {
1810                 # special case - we need to pass $key to parse_drive()
1811                 my $drive = parse_drive($key, $value);
1812                 return $value if $drive;
1813                 die "unable to parse drive options\n";
1814             }
1815             PVE::JSONSchema::check_format($fmt, $value);
1816             return $value;
1817         }
1818         $value =~ s/^\"(.*)\"$/$1/;
1819         return $value;
1820     } else {
1821         die "internal error"
1822     }
1823 }
1824
1825 sub lock_config_full {
1826     my ($vmid, $timeout, $code, @param) = @_;
1827
1828     my $filename = config_file_lock($vmid);
1829
1830     my $res = lock_file($filename, $timeout, $code, @param);
1831
1832     die $@ if $@;
1833
1834     return $res;
1835 }
1836
1837 sub lock_config_mode {
1838     my ($vmid, $timeout, $shared, $code, @param) = @_;
1839
1840     my $filename = config_file_lock($vmid);
1841
1842     my $res = lock_file_full($filename, $timeout, $shared, $code, @param);
1843
1844     die $@ if $@;
1845
1846     return $res;
1847 }
1848
1849 sub lock_config {
1850     my ($vmid, $code, @param) = @_;
1851
1852     return lock_config_full($vmid, 10, $code, @param);
1853 }
1854
1855 sub cfs_config_path {
1856     my ($vmid, $node) = @_;
1857
1858     $node = $nodename if !$node;
1859     return "nodes/$node/qemu-server/$vmid.conf";
1860 }
1861
1862 sub check_iommu_support{
1863     #fixme : need to check IOMMU support
1864     #http://www.linux-kvm.org/page/How_to_assign_devices_with_VT-d_in_KVM
1865
1866     my $iommu=1;
1867     return $iommu;
1868
1869 }
1870
1871 sub config_file {
1872     my ($vmid, $node) = @_;
1873
1874     my $cfspath = cfs_config_path($vmid, $node);
1875     return "/etc/pve/$cfspath";
1876 }
1877
1878 sub config_file_lock {
1879     my ($vmid) = @_;
1880
1881     return "$lock_dir/lock-$vmid.conf";
1882 }
1883
1884 sub touch_config {
1885     my ($vmid) = @_;
1886
1887     my $conf = config_file($vmid);
1888     utime undef, undef, $conf;
1889 }
1890
1891 sub destroy_vm {
1892     my ($storecfg, $vmid, $keep_empty_config) = @_;
1893
1894     my $conffile = config_file($vmid);
1895
1896     my $conf = load_config($vmid);
1897
1898     check_lock($conf);
1899
1900     # only remove disks owned by this VM
1901     foreach_drive($conf, sub {
1902         my ($ds, $drive) = @_;
1903
1904         return if drive_is_cdrom($drive);
1905
1906         my $volid = $drive->{file};
1907
1908         return if !$volid || $volid =~ m|^/|;
1909
1910         my ($path, $owner) = PVE::Storage::path($storecfg, $volid);
1911         return if !$path || !$owner || ($owner != $vmid);
1912
1913         PVE::Storage::vdisk_free($storecfg, $volid);
1914     });
1915
1916     if ($keep_empty_config) {
1917         PVE::Tools::file_set_contents($conffile, "memory: 128\n");
1918     } else {
1919         unlink $conffile;
1920     }
1921
1922     # also remove unused disk
1923     eval {
1924         my $dl = PVE::Storage::vdisk_list($storecfg, undef, $vmid);
1925
1926         eval {
1927             PVE::Storage::foreach_volid($dl, sub {
1928                 my ($volid, $sid, $volname, $d) = @_;
1929                 PVE::Storage::vdisk_free($storecfg, $volid);
1930             });
1931         };
1932         warn $@ if $@;
1933
1934     };
1935     warn $@ if $@;
1936 }
1937
1938 sub load_config {
1939     my ($vmid, $node) = @_;
1940
1941     my $cfspath = cfs_config_path($vmid, $node);
1942
1943     my $conf = PVE::Cluster::cfs_read_file($cfspath);
1944
1945     die "no such VM ('$vmid')\n" if !defined($conf);
1946
1947     return $conf;
1948 }
1949
1950 sub parse_vm_config {
1951     my ($filename, $raw) = @_;
1952
1953     return undef if !defined($raw);
1954
1955     my $res = {
1956         digest => Digest::SHA::sha1_hex($raw),
1957         snapshots => {},
1958         pending => {},
1959     };
1960
1961     $filename =~ m|/qemu-server/(\d+)\.conf$|
1962         || die "got strange filename '$filename'";
1963
1964     my $vmid = $1;
1965
1966     my $conf = $res;
1967     my $descr = '';
1968     my $section = '';
1969
1970     my @lines = split(/\n/, $raw);
1971     foreach my $line (@lines) {
1972         next if $line =~ m/^\s*$/;
1973
1974         if ($line =~ m/^\[PENDING\]\s*$/i) {
1975             $section = 'pending';
1976             $conf->{description} = $descr if $descr;
1977             $descr = '';
1978             $conf = $res->{$section} = {};
1979             next;
1980
1981         } elsif ($line =~ m/^\[([a-z][a-z0-9_\-]+)\]\s*$/i) {
1982             $section = $1;
1983             $conf->{description} = $descr if $descr;
1984             $descr = '';
1985             $conf = $res->{snapshots}->{$section} = {};
1986             next;
1987         }
1988
1989         if ($line =~ m/^\#(.*)\s*$/) {
1990             $descr .= PVE::Tools::decode_text($1) . "\n";
1991             next;
1992         }
1993
1994         if ($line =~ m/^(description):\s*(.*\S)\s*$/) {
1995             $descr .= PVE::Tools::decode_text($2);
1996         } elsif ($line =~ m/snapstate:\s*(prepare|delete)\s*$/) {
1997             $conf->{snapstate} = $1;
1998         } elsif ($line =~ m/^(args):\s*(.*\S)\s*$/) {
1999             my $key = $1;
2000             my $value = $2;
2001             $conf->{$key} = $value;
2002         } elsif ($line =~ m/^delete:\s*(.*\S)\s*$/) {
2003             my $value = $1;
2004             if ($section eq 'pending') {
2005                 $conf->{delete} = $value; # we parse this later
2006             } else {
2007                 warn "vm $vmid - propertry 'delete' is only allowed in [PENDING]\n";
2008             }
2009         } elsif ($line =~ m/^([a-z][a-z_]*\d*):\s*(\S+)\s*$/) {
2010             my $key = $1;
2011             my $value = $2;
2012             eval { $value = check_type($key, $value); };
2013             if ($@) {
2014                 warn "vm $vmid - unable to parse value of '$key' - $@";
2015             } else {
2016                 my $fmt = $confdesc->{$key}->{format};
2017                 if ($fmt && $fmt eq 'pve-qm-drive') {
2018                     my $v = parse_drive($key, $value);
2019                     if (my $volid = filename_to_volume_id($vmid, $v->{file}, $v->{media})) {
2020                         $v->{file} = $volid;
2021                         $value = print_drive($vmid, $v);
2022                     } else {
2023                         warn "vm $vmid - unable to parse value of '$key'\n";
2024                         next;
2025                     }
2026                 }
2027
2028                 if ($key eq 'cdrom') {
2029                     $conf->{ide2} = $value;
2030                 } else {
2031                     $conf->{$key} = $value;
2032                 }
2033             }
2034         }
2035     }
2036
2037     $conf->{description} = $descr if $descr;
2038
2039     delete $res->{snapstate}; # just to be sure
2040
2041     return $res;
2042 }
2043
2044 sub write_vm_config {
2045     my ($filename, $conf) = @_;
2046
2047     delete $conf->{snapstate}; # just to be sure
2048
2049     if ($conf->{cdrom}) {
2050         die "option ide2 conflicts with cdrom\n" if $conf->{ide2};
2051         $conf->{ide2} = $conf->{cdrom};
2052         delete $conf->{cdrom};
2053     }
2054
2055     # we do not use 'smp' any longer
2056     if ($conf->{sockets}) {
2057         delete $conf->{smp};
2058     } elsif ($conf->{smp}) {
2059         $conf->{sockets} = $conf->{smp};
2060         delete $conf->{cores};
2061         delete $conf->{smp};
2062     }
2063
2064     my $used_volids = {};
2065
2066     my $cleanup_config = sub {
2067         my ($cref, $pending, $snapname) = @_;
2068
2069         foreach my $key (keys %$cref) {
2070             next if $key eq 'digest' || $key eq 'description' || $key eq 'snapshots' ||
2071                 $key eq 'snapstate' || $key eq 'pending';
2072             my $value = $cref->{$key};
2073             if ($key eq 'delete') {
2074                 die "propertry 'delete' is only allowed in [PENDING]\n"
2075                     if !$pending;
2076                 # fixme: check syntax?
2077                 next;
2078             }
2079             eval { $value = check_type($key, $value); };
2080             die "unable to parse value of '$key' - $@" if $@;
2081
2082             $cref->{$key} = $value;
2083
2084             if (!$snapname && valid_drivename($key)) {
2085                 my $drive = parse_drive($key, $value);
2086                 $used_volids->{$drive->{file}} = 1 if $drive && $drive->{file};
2087             }
2088         }
2089     };
2090
2091     &$cleanup_config($conf);
2092
2093     &$cleanup_config($conf->{pending}, 1);
2094
2095     foreach my $snapname (keys %{$conf->{snapshots}}) {
2096         die "internal error" if $snapname eq 'pending';
2097         &$cleanup_config($conf->{snapshots}->{$snapname}, undef, $snapname);
2098     }
2099
2100     # remove 'unusedX' settings if we re-add a volume
2101     foreach my $key (keys %$conf) {
2102         my $value = $conf->{$key};
2103         if ($key =~ m/^unused/ && $used_volids->{$value}) {
2104             delete $conf->{$key};
2105         }
2106     }
2107
2108     my $generate_raw_config = sub {
2109         my ($conf) = @_;
2110
2111         my $raw = '';
2112
2113         # add description as comment to top of file
2114         my $descr = $conf->{description} || '';
2115         foreach my $cl (split(/\n/, $descr)) {
2116             $raw .= '#' .  PVE::Tools::encode_text($cl) . "\n";
2117         }
2118
2119         foreach my $key (sort keys %$conf) {
2120             next if $key eq 'digest' || $key eq 'description' || $key eq 'pending' || $key eq 'snapshots';
2121             $raw .= "$key: $conf->{$key}\n";
2122         }
2123         return $raw;
2124     };
2125
2126     my $raw = &$generate_raw_config($conf);
2127
2128     if (scalar(keys %{$conf->{pending}})){
2129         $raw .= "\n[PENDING]\n";
2130         $raw .= &$generate_raw_config($conf->{pending});
2131     }
2132
2133     foreach my $snapname (sort keys %{$conf->{snapshots}}) {
2134         $raw .= "\n[$snapname]\n";
2135         $raw .= &$generate_raw_config($conf->{snapshots}->{$snapname});
2136     }
2137
2138     return $raw;
2139 }
2140
2141 sub update_config_nolock {
2142     my ($vmid, $conf, $skiplock) = @_;
2143
2144     check_lock($conf) if !$skiplock;
2145
2146     my $cfspath = cfs_config_path($vmid);
2147
2148     PVE::Cluster::cfs_write_file($cfspath, $conf);
2149 }
2150
2151 sub update_config {
2152     my ($vmid, $conf, $skiplock) = @_;
2153
2154     lock_config($vmid, &update_config_nolock, $conf, $skiplock);
2155 }
2156
2157 sub load_defaults {
2158
2159     my $res = {};
2160
2161     # we use static defaults from our JSON schema configuration
2162     foreach my $key (keys %$confdesc) {
2163         if (defined(my $default = $confdesc->{$key}->{default})) {
2164             $res->{$key} = $default;
2165         }
2166     }
2167
2168     my $conf = PVE::Cluster::cfs_read_file('datacenter.cfg');
2169     $res->{keyboard} = $conf->{keyboard} if $conf->{keyboard};
2170
2171     return $res;
2172 }
2173
2174 sub config_list {
2175     my $vmlist = PVE::Cluster::get_vmlist();
2176     my $res = {};
2177     return $res if !$vmlist || !$vmlist->{ids};
2178     my $ids = $vmlist->{ids};
2179
2180     foreach my $vmid (keys %$ids) {
2181         my $d = $ids->{$vmid};
2182         next if !$d->{node} || $d->{node} ne $nodename;
2183         next if !$d->{type} || $d->{type} ne 'qemu';
2184         $res->{$vmid}->{exists} = 1;
2185     }
2186     return $res;
2187 }
2188
2189 # test if VM uses local resources (to prevent migration)
2190 sub check_local_resources {
2191     my ($conf, $noerr) = @_;
2192
2193     my $loc_res = 0;
2194
2195     $loc_res = 1 if $conf->{hostusb}; # old syntax
2196     $loc_res = 1 if $conf->{hostpci}; # old syntax
2197
2198     foreach my $k (keys %$conf) {
2199         next if $k =~ m/^usb/ && ($conf->{$k} eq 'spice');
2200         $loc_res = 1 if $k =~ m/^(usb|hostpci|serial|parallel)\d+$/;
2201     }
2202
2203     die "VM uses local resources\n" if $loc_res && !$noerr;
2204
2205     return $loc_res;
2206 }
2207
2208 # check if used storages are available on all nodes (use by migrate)
2209 sub check_storage_availability {
2210     my ($storecfg, $conf, $node) = @_;
2211
2212     foreach_drive($conf, sub {
2213         my ($ds, $drive) = @_;
2214
2215         my $volid = $drive->{file};
2216         return if !$volid;
2217
2218         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
2219         return if !$sid;
2220
2221         # check if storage is available on both nodes
2222         my $scfg = PVE::Storage::storage_check_node($storecfg, $sid);
2223         PVE::Storage::storage_check_node($storecfg, $sid, $node);
2224    });
2225 }
2226
2227 # list nodes where all VM images are available (used by has_feature API)
2228 sub shared_nodes {
2229     my ($conf, $storecfg) = @_;
2230
2231     my $nodelist = PVE::Cluster::get_nodelist();
2232     my $nodehash = { map { $_ => 1 } @$nodelist };
2233     my $nodename = PVE::INotify::nodename();
2234
2235     foreach_drive($conf, sub {
2236         my ($ds, $drive) = @_;
2237
2238         my $volid = $drive->{file};
2239         return if !$volid;
2240
2241         my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
2242         if ($storeid) {
2243             my $scfg = PVE::Storage::storage_config($storecfg, $storeid);
2244             if ($scfg->{disable}) {
2245                 $nodehash = {};
2246             } elsif (my $avail = $scfg->{nodes}) {
2247                 foreach my $node (keys %$nodehash) {
2248                     delete $nodehash->{$node} if !$avail->{$node};
2249                 }
2250             } elsif (!$scfg->{shared}) {
2251                 foreach my $node (keys %$nodehash) {
2252                     delete $nodehash->{$node} if $node ne $nodename
2253                 }
2254             }
2255         }
2256     });
2257
2258     return $nodehash
2259 }
2260
2261 sub check_lock {
2262     my ($conf) = @_;
2263
2264     die "VM is locked ($conf->{lock})\n" if $conf->{lock};
2265 }
2266
2267 sub check_cmdline {
2268     my ($pidfile, $pid) = @_;
2269
2270     my $fh = IO::File->new("/proc/$pid/cmdline", "r");
2271     if (defined($fh)) {
2272         my $line = <$fh>;
2273         $fh->close;
2274         return undef if !$line;
2275         my @param = split(/\0/, $line);
2276
2277         my $cmd = $param[0];
2278         return if !$cmd || ($cmd !~ m|kvm$| && $cmd !~ m|qemu-system-x86_64$|);
2279
2280         for (my $i = 0; $i < scalar (@param); $i++) {
2281             my $p = $param[$i];
2282             next if !$p;
2283             if (($p eq '-pidfile') || ($p eq '--pidfile')) {
2284                 my $p = $param[$i+1];
2285                 return 1 if $p && ($p eq $pidfile);
2286                 return undef;
2287             }
2288         }
2289     }
2290     return undef;
2291 }
2292
2293 sub check_running {
2294     my ($vmid, $nocheck, $node) = @_;
2295
2296     my $filename = config_file($vmid, $node);
2297
2298     die "unable to find configuration file for VM $vmid - no such machine\n"
2299         if !$nocheck && ! -f $filename;
2300
2301     my $pidfile = pidfile_name($vmid);
2302
2303     if (my $fd = IO::File->new("<$pidfile")) {
2304         my $st = stat($fd);
2305         my $line = <$fd>;
2306         close($fd);
2307
2308         my $mtime = $st->mtime;
2309         if ($mtime > time()) {
2310             warn "file '$filename' modified in future\n";
2311         }
2312
2313         if ($line =~ m/^(\d+)$/) {
2314             my $pid = $1;
2315             if (check_cmdline($pidfile, $pid)) {
2316                 if (my $pinfo = PVE::ProcFSTools::check_process_running($pid)) {
2317                     return $pid;
2318                 }
2319             }
2320         }
2321     }
2322
2323     return undef;
2324 }
2325
2326 sub vzlist {
2327
2328     my $vzlist = config_list();
2329
2330     my $fd = IO::Dir->new($var_run_tmpdir) || return $vzlist;
2331
2332     while (defined(my $de = $fd->read)) {
2333         next if $de !~ m/^(\d+)\.pid$/;
2334         my $vmid = $1;
2335         next if !defined($vzlist->{$vmid});
2336         if (my $pid = check_running($vmid)) {
2337             $vzlist->{$vmid}->{pid} = $pid;
2338         }
2339     }
2340
2341     return $vzlist;
2342 }
2343
2344 sub disksize {
2345     my ($storecfg, $conf) = @_;
2346
2347     my $bootdisk = $conf->{bootdisk};
2348     return undef if !$bootdisk;
2349     return undef if !valid_drivename($bootdisk);
2350
2351     return undef if !$conf->{$bootdisk};
2352
2353     my $drive = parse_drive($bootdisk, $conf->{$bootdisk});
2354     return undef if !defined($drive);
2355
2356     return undef if drive_is_cdrom($drive);
2357
2358     my $volid = $drive->{file};
2359     return undef if !$volid;
2360
2361     return $drive->{size};
2362 }
2363
2364 my $last_proc_pid_stat;
2365
2366 # get VM status information
2367 # This must be fast and should not block ($full == false)
2368 # We only query KVM using QMP if $full == true (this can be slow)
2369 sub vmstatus {
2370     my ($opt_vmid, $full) = @_;
2371
2372     my $res = {};
2373
2374     my $storecfg = PVE::Storage::config();
2375
2376     my $list = vzlist();
2377     my ($uptime) = PVE::ProcFSTools::read_proc_uptime(1);
2378
2379     my $cpucount = $cpuinfo->{cpus} || 1;
2380
2381     foreach my $vmid (keys %$list) {
2382         next if $opt_vmid && ($vmid ne $opt_vmid);
2383
2384         my $cfspath = cfs_config_path($vmid);
2385         my $conf = PVE::Cluster::cfs_read_file($cfspath) || {};
2386
2387         my $d = {};
2388         $d->{pid} = $list->{$vmid}->{pid};
2389
2390         # fixme: better status?
2391         $d->{status} = $list->{$vmid}->{pid} ? 'running' : 'stopped';
2392
2393         my $size = disksize($storecfg, $conf);
2394         if (defined($size)) {
2395             $d->{disk} = 0; # no info available
2396             $d->{maxdisk} = $size;
2397         } else {
2398             $d->{disk} = 0;
2399             $d->{maxdisk} = 0;
2400         }
2401
2402         $d->{cpus} = ($conf->{sockets} || 1) * ($conf->{cores} || 1);
2403         $d->{cpus} = $cpucount if $d->{cpus} > $cpucount;
2404
2405         $d->{name} = $conf->{name} || "VM $vmid";
2406         $d->{maxmem} = $conf->{memory} ? $conf->{memory}*(1024*1024) : 0;
2407
2408         if ($conf->{balloon}) {
2409             $d->{balloon_min} = $conf->{balloon}*(1024*1024);
2410             $d->{shares} = defined($conf->{shares}) ? $conf->{shares} : 1000;
2411         }
2412
2413         $d->{uptime} = 0;
2414         $d->{cpu} = 0;
2415         $d->{mem} = 0;
2416
2417         $d->{netout} = 0;
2418         $d->{netin} = 0;
2419
2420         $d->{diskread} = 0;
2421         $d->{diskwrite} = 0;
2422
2423         $d->{template} = is_template($conf);
2424
2425         $res->{$vmid} = $d;
2426     }
2427
2428     my $netdev = PVE::ProcFSTools::read_proc_net_dev();
2429     foreach my $dev (keys %$netdev) {
2430         next if $dev !~ m/^tap([1-9]\d*)i/;
2431         my $vmid = $1;
2432         my $d = $res->{$vmid};
2433         next if !$d;
2434
2435         $d->{netout} += $netdev->{$dev}->{receive};
2436         $d->{netin} += $netdev->{$dev}->{transmit};
2437     }
2438
2439     my $ctime = gettimeofday;
2440
2441     foreach my $vmid (keys %$list) {
2442
2443         my $d = $res->{$vmid};
2444         my $pid = $d->{pid};
2445         next if !$pid;
2446
2447         my $pstat = PVE::ProcFSTools::read_proc_pid_stat($pid);
2448         next if !$pstat; # not running
2449
2450         my $used = $pstat->{utime} + $pstat->{stime};
2451
2452         $d->{uptime} = int(($uptime - $pstat->{starttime})/$cpuinfo->{user_hz});
2453
2454         if ($pstat->{vsize}) {
2455             $d->{mem} = int(($pstat->{rss}/$pstat->{vsize})*$d->{maxmem});
2456         }
2457
2458         my $old = $last_proc_pid_stat->{$pid};
2459         if (!$old) {
2460             $last_proc_pid_stat->{$pid} = {
2461                 time => $ctime,
2462                 used => $used,
2463                 cpu => 0,
2464             };
2465             next;
2466         }
2467
2468         my $dtime = ($ctime -  $old->{time}) * $cpucount * $cpuinfo->{user_hz};
2469
2470         if ($dtime > 1000) {
2471             my $dutime = $used -  $old->{used};
2472
2473             $d->{cpu} = (($dutime/$dtime)* $cpucount) / $d->{cpus};
2474             $last_proc_pid_stat->{$pid} = {
2475                 time => $ctime,
2476                 used => $used,
2477                 cpu => $d->{cpu},
2478             };
2479         } else {
2480             $d->{cpu} = $old->{cpu};
2481         }
2482     }
2483
2484     return $res if !$full;
2485
2486     my $qmpclient = PVE::QMPClient->new();
2487
2488     my $ballooncb = sub {
2489         my ($vmid, $resp) = @_;
2490
2491         my $info = $resp->{'return'};
2492         return if !$info->{max_mem};
2493
2494         my $d = $res->{$vmid};
2495
2496         # use memory assigned to VM
2497         $d->{maxmem} = $info->{max_mem};
2498         $d->{balloon} = $info->{actual};
2499
2500         if (defined($info->{total_mem}) && defined($info->{free_mem})) {
2501             $d->{mem} = $info->{total_mem} - $info->{free_mem};
2502             $d->{freemem} = $info->{free_mem};
2503         }
2504
2505     };
2506
2507     my $blockstatscb = sub {
2508         my ($vmid, $resp) = @_;
2509         my $data = $resp->{'return'} || [];
2510         my $totalrdbytes = 0;
2511         my $totalwrbytes = 0;
2512         for my $blockstat (@$data) {
2513             $totalrdbytes = $totalrdbytes + $blockstat->{stats}->{rd_bytes};
2514             $totalwrbytes = $totalwrbytes + $blockstat->{stats}->{wr_bytes};
2515         }
2516         $res->{$vmid}->{diskread} = $totalrdbytes;
2517         $res->{$vmid}->{diskwrite} = $totalwrbytes;
2518     };
2519
2520     my $statuscb = sub {
2521         my ($vmid, $resp) = @_;
2522
2523         $qmpclient->queue_cmd($vmid, $blockstatscb, 'query-blockstats');
2524         # this fails if ballon driver is not loaded, so this must be
2525         # the last commnand (following command are aborted if this fails).
2526         $qmpclient->queue_cmd($vmid, $ballooncb, 'query-balloon');
2527
2528         my $status = 'unknown';
2529         if (!defined($status = $resp->{'return'}->{status})) {
2530             warn "unable to get VM status\n";
2531             return;
2532         }
2533
2534         $res->{$vmid}->{qmpstatus} = $resp->{'return'}->{status};
2535     };
2536
2537     foreach my $vmid (keys %$list) {
2538         next if $opt_vmid && ($vmid ne $opt_vmid);
2539         next if !$res->{$vmid}->{pid}; # not running
2540         $qmpclient->queue_cmd($vmid, $statuscb, 'query-status');
2541     }
2542
2543     $qmpclient->queue_execute(undef, 1);
2544
2545     foreach my $vmid (keys %$list) {
2546         next if $opt_vmid && ($vmid ne $opt_vmid);
2547         $res->{$vmid}->{qmpstatus} = $res->{$vmid}->{status} if !$res->{$vmid}->{qmpstatus};
2548     }
2549
2550     return $res;
2551 }
2552
2553 sub foreach_dimm {
2554     my ($conf, $vmid, $memory, $sockets, $func) = @_;
2555
2556     my $dimm_id = 0;
2557     my $current_size = 1024;
2558     my $dimm_size = 512;
2559     return if $current_size == $memory;
2560
2561     for (my $j = 0; $j < 8; $j++) {
2562         for (my $i = 0; $i < 32; $i++) {
2563             my $name = "dimm${dimm_id}";
2564             $dimm_id++;
2565             my $numanode = $i % $sockets;
2566             $current_size += $dimm_size;
2567             &$func($conf, $vmid, $name, $dimm_size, $numanode, $current_size, $memory);
2568             return  $current_size if $current_size >= $memory;
2569         }
2570         $dimm_size *= 2;
2571     }
2572 }
2573
2574 sub foreach_drive {
2575     my ($conf, $func) = @_;
2576
2577     foreach my $ds (keys %$conf) {
2578         next if !valid_drivename($ds);
2579
2580         my $drive = parse_drive($ds, $conf->{$ds});
2581         next if !$drive;
2582
2583         &$func($ds, $drive);
2584     }
2585 }
2586
2587 sub foreach_volid {
2588     my ($conf, $func) = @_;
2589
2590     my $volhash = {};
2591
2592     my $test_volid = sub {
2593         my ($volid, $is_cdrom) = @_;
2594
2595         return if !$volid;
2596
2597         $volhash->{$volid} = $is_cdrom || 0;
2598     };
2599
2600     foreach_drive($conf, sub {
2601         my ($ds, $drive) = @_;
2602         &$test_volid($drive->{file}, drive_is_cdrom($drive));
2603     });
2604
2605     foreach my $snapname (keys %{$conf->{snapshots}}) {
2606         my $snap = $conf->{snapshots}->{$snapname};
2607         &$test_volid($snap->{vmstate}, 0);
2608         foreach_drive($snap, sub {
2609             my ($ds, $drive) = @_;
2610             &$test_volid($drive->{file}, drive_is_cdrom($drive));
2611         });
2612     }
2613
2614     foreach my $volid (keys %$volhash) {
2615         &$func($volid, $volhash->{$volid});
2616     }
2617 }
2618
2619 sub vga_conf_has_spice {
2620     my ($vga) = @_;
2621
2622     return 0 if !$vga || $vga !~ m/^qxl([234])?$/;
2623
2624     return $1 || 1;
2625 }
2626
2627 sub config_to_command {
2628     my ($storecfg, $vmid, $conf, $defaults, $forcemachine) = @_;
2629
2630     my $cmd = [];
2631     my $globalFlags = [];
2632     my $machineFlags = [];
2633     my $rtcFlags = [];
2634     my $cpuFlags = [];
2635     my $devices = [];
2636     my $pciaddr = '';
2637     my $bridges = {};
2638     my $kvmver = kvm_user_version();
2639     my $vernum = 0; # unknown
2640     if ($kvmver =~ m/^(\d+)\.(\d+)$/) {
2641         $vernum = $1*1000000+$2*1000;
2642     } elsif ($kvmver =~ m/^(\d+)\.(\d+)\.(\d+)$/) {
2643         $vernum = $1*1000000+$2*1000+$3;
2644     }
2645
2646     die "detected old qemu-kvm binary ($kvmver)\n" if $vernum < 15000;
2647
2648     my $have_ovz = -f '/proc/vz/vestat';
2649
2650     my $q35 = machine_type_is_q35($conf);
2651     my $hotplug_features = parse_hotplug_features(defined($conf->{hotplug}) ? $conf->{hotplug} : '1');
2652
2653     push @$cmd, '/usr/bin/kvm';
2654
2655     push @$cmd, '-id', $vmid;
2656
2657     my $use_virtio = 0;
2658
2659     my $qmpsocket = qmp_socket($vmid);
2660     push @$cmd, '-chardev', "socket,id=qmp,path=$qmpsocket,server,nowait";
2661     push @$cmd, '-mon', "chardev=qmp,mode=control";
2662
2663     my $socket = vnc_socket($vmid);
2664     push @$cmd,  '-vnc', "unix:$socket,x509,password";
2665
2666     push @$cmd, '-pidfile' , pidfile_name($vmid);
2667
2668     push @$cmd, '-daemonize';
2669
2670     if ($conf->{smbios1}) {
2671         push @$cmd, '-smbios', "type=1,$conf->{smbios1}";
2672     }
2673
2674     push @$cmd, '-object', "iothread,id=iothread0" if $conf->{iothread};
2675
2676     if ($q35) {
2677         # the q35 chipset support native usb2, so we enable usb controller
2678         # by default for this machine type
2679         push @$devices, '-readconfig', '/usr/share/qemu-server/pve-q35.cfg';
2680     } else {
2681         $pciaddr = print_pci_addr("piix3", $bridges);
2682         push @$devices, '-device', "piix3-usb-uhci,id=uhci$pciaddr.0x2";
2683
2684         my $use_usb2 = 0;
2685         for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
2686             next if !$conf->{"usb$i"};
2687             $use_usb2 = 1;
2688         }
2689         # include usb device config
2690         push @$devices, '-readconfig', '/usr/share/qemu-server/pve-usb.cfg' if $use_usb2;
2691     }
2692
2693     my $vga = $conf->{vga};
2694
2695     my $qxlnum = vga_conf_has_spice($vga);
2696     $vga = 'qxl' if $qxlnum;
2697
2698     if (!$vga) {
2699         if ($conf->{ostype} && ($conf->{ostype} eq 'win8' ||
2700                                 $conf->{ostype} eq 'win7' ||
2701                                 $conf->{ostype} eq 'w2k8')) {
2702             $vga = 'std';
2703         } else {
2704             $vga = 'cirrus';
2705         }
2706     }
2707
2708     # enable absolute mouse coordinates (needed by vnc)
2709     my $tablet;
2710     if (defined($conf->{tablet})) {
2711         $tablet = $conf->{tablet};
2712     } else {
2713         $tablet = $defaults->{tablet};
2714         $tablet = 0 if $qxlnum; # disable for spice because it is not needed
2715         $tablet = 0 if $vga =~ m/^serial\d+$/; # disable if we use serial terminal (no vga card)
2716     }
2717
2718     push @$devices, '-device', print_tabletdevice_full($conf) if $tablet;
2719
2720     # host pci devices
2721     for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
2722         my $d = parse_hostpci($conf->{"hostpci$i"});
2723         next if !$d;
2724
2725         my $pcie = $d->{pcie};
2726         if($pcie){
2727             die "q35 machine model is not enabled" if !$q35;
2728             $pciaddr = print_pcie_addr("hostpci$i");
2729         }else{
2730             $pciaddr = print_pci_addr("hostpci$i", $bridges);
2731         }
2732
2733         my $rombar = $d->{rombar} && $d->{rombar} eq 'off' ? ",rombar=0" : "";
2734         my $driver = $d->{driver} && $d->{driver} eq 'vfio' ? "vfio-pci" : "pci-assign";
2735         my $xvga = $d->{'x-vga'} && $d->{'x-vga'} eq 'on' ? ",x-vga=on" : "";
2736         if ($xvga && $xvga ne '') {
2737             push @$cpuFlags, 'kvm=off';
2738             $vga = 'none';
2739         }
2740         $driver = "vfio-pci" if $xvga ne '';
2741         my $pcidevices = $d->{pciid};
2742         my $multifunction = 1 if @$pcidevices > 1;
2743
2744         my $j=0;
2745         foreach my $pcidevice (@$pcidevices) {
2746
2747             my $id = "hostpci$i";
2748             $id .= ".$j" if $multifunction;
2749             my $addr = $pciaddr;
2750             $addr .= ".$j" if $multifunction;
2751             my $devicestr = "$driver,host=$pcidevice->{id}.$pcidevice->{function},id=$id$addr";
2752
2753             if($j == 0){
2754                 $devicestr .= "$rombar$xvga";
2755                 $devicestr .= ",multifunction=on" if $multifunction;
2756             }
2757
2758             push @$devices, '-device', $devicestr;
2759             $j++;
2760         }
2761     }
2762
2763     # usb devices
2764     for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
2765         my $d = parse_usb_device($conf->{"usb$i"});
2766         next if !$d;
2767         if ($d->{vendorid} && $d->{productid}) {
2768             push @$devices, '-device', "usb-host,vendorid=0x$d->{vendorid},productid=0x$d->{productid}";
2769         } elsif (defined($d->{hostbus}) && defined($d->{hostport})) {
2770             push @$devices, '-device', "usb-host,hostbus=$d->{hostbus},hostport=$d->{hostport}";
2771         } elsif ($d->{spice}) {
2772             # usb redir support for spice
2773             push @$devices, '-chardev', "spicevmc,id=usbredirchardev$i,name=usbredir";
2774             push @$devices, '-device', "usb-redir,chardev=usbredirchardev$i,id=usbredirdev$i,bus=ehci.0";
2775         }
2776     }
2777
2778     # serial devices
2779     for (my $i = 0; $i < $MAX_SERIAL_PORTS; $i++)  {
2780         if (my $path = $conf->{"serial$i"}) {
2781             if ($path eq 'socket') {
2782                 my $socket = "/var/run/qemu-server/${vmid}.serial$i";
2783                 push @$devices, '-chardev', "socket,id=serial$i,path=$socket,server,nowait";
2784                 push @$devices, '-device', "isa-serial,chardev=serial$i";
2785             } else {
2786                 die "no such serial device\n" if ! -c $path;
2787                 push @$devices, '-chardev', "tty,id=serial$i,path=$path";
2788                 push @$devices, '-device', "isa-serial,chardev=serial$i";
2789             }
2790         }
2791     }
2792
2793     # parallel devices
2794     for (my $i = 0; $i < $MAX_PARALLEL_PORTS; $i++)  {
2795         if (my $path = $conf->{"parallel$i"}) {
2796             die "no such parallel device\n" if ! -c $path;
2797             my $devtype = $path =~ m!^/dev/usb/lp! ? 'tty' : 'parport';
2798             push @$devices, '-chardev', "$devtype,id=parallel$i,path=$path";
2799             push @$devices, '-device', "isa-parallel,chardev=parallel$i";
2800         }
2801     }
2802
2803     my $vmname = $conf->{name} || "vm$vmid";
2804
2805     push @$cmd, '-name', $vmname;
2806
2807     my $sockets = 1;
2808     $sockets = $conf->{smp} if $conf->{smp}; # old style - no longer iused
2809     $sockets = $conf->{sockets} if  $conf->{sockets};
2810
2811     my $cores = $conf->{cores} || 1;
2812
2813     my $maxcpus = $sockets * $cores;
2814
2815     my $vcpus = $conf->{vcpus} ? $conf->{vcpus} : $maxcpus;
2816
2817     my $allowed_vcpus = $cpuinfo->{cpus};
2818
2819     die "MAX $maxcpus vcpus allowed per VM on this node\n"
2820         if ($allowed_vcpus < $maxcpus);
2821
2822     push @$cmd, '-smp', "$vcpus,sockets=$sockets,cores=$cores,maxcpus=$maxcpus";
2823
2824     push @$cmd, '-nodefaults';
2825
2826     my $bootorder = $conf->{boot} || $confdesc->{boot}->{default};
2827
2828     my $bootindex_hash = {};
2829     my $i = 1;
2830     foreach my $o (split(//, $bootorder)) {
2831         $bootindex_hash->{$o} = $i*100;
2832         $i++;
2833     }
2834
2835     push @$cmd, '-boot', "menu=on,strict=on,reboot-timeout=1000";
2836
2837     push @$cmd, '-no-acpi' if defined($conf->{acpi}) && $conf->{acpi} == 0;
2838
2839     push @$cmd, '-no-reboot' if  defined($conf->{reboot}) && $conf->{reboot} == 0;
2840
2841     push @$cmd, '-vga', $vga if $vga && $vga !~ m/^serial\d+$/; # for kvm 77 and later
2842
2843     # time drift fix
2844     my $tdf = defined($conf->{tdf}) ? $conf->{tdf} : $defaults->{tdf};
2845
2846     my $nokvm = defined($conf->{kvm}) && $conf->{kvm} == 0 ? 1 : 0;
2847     my $useLocaltime = $conf->{localtime};
2848
2849     if (my $ost = $conf->{ostype}) {
2850         # other, wxp, w2k, w2k3, w2k8, wvista, win7, win8, l24, l26, solaris
2851
2852         if ($ost =~ m/^w/) { # windows
2853             $useLocaltime = 1 if !defined($conf->{localtime});
2854
2855             # use time drift fix when acpi is enabled
2856             if (!(defined($conf->{acpi}) && $conf->{acpi} == 0)) {
2857                 $tdf = 1 if !defined($conf->{tdf});
2858             }
2859         }
2860
2861         if ($ost eq 'win7' || $ost eq 'win8' || $ost eq 'w2k8' ||
2862             $ost eq 'wvista') {
2863             push @$globalFlags, 'kvm-pit.lost_tick_policy=discard';
2864             push @$cmd, '-no-hpet';
2865             #push @$cpuFlags , 'hv_vapic" if !$nokvm;  #fixme, my win2008R2 hang at boot with this
2866             push @$cpuFlags , 'hv_spinlocks=0xffff' if !$nokvm;
2867         }
2868
2869         if ($ost eq 'win7' || $ost eq 'win8') {
2870             push @$cpuFlags , 'hv_relaxed' if !$nokvm;
2871         }
2872     }
2873
2874     push @$rtcFlags, 'driftfix=slew' if $tdf;
2875
2876     if ($nokvm) {
2877         push @$machineFlags, 'accel=tcg';
2878     } else {
2879         die "No accelerator found!\n" if !$cpuinfo->{hvm};
2880     }
2881
2882     my $machine_type = $forcemachine || $conf->{machine};
2883     if ($machine_type) {
2884         push @$machineFlags, "type=${machine_type}";
2885     }
2886
2887     if ($conf->{startdate}) {
2888         push @$rtcFlags, "base=$conf->{startdate}";
2889     } elsif ($useLocaltime) {
2890         push @$rtcFlags, 'base=localtime';
2891     }
2892
2893     my $cpu = $nokvm ? "qemu64" : "kvm64";
2894     $cpu = $conf->{cpu} if $conf->{cpu};
2895
2896     push @$cpuFlags , '+lahf_lm' if $cpu eq 'kvm64';
2897
2898     push @$cpuFlags , '+x2apic' if !$nokvm && $conf->{ostype} ne 'solaris';
2899
2900     push @$cpuFlags , '-x2apic' if $conf->{ostype} eq 'solaris';
2901
2902     push @$cpuFlags, '+sep' if $cpu eq 'kvm64' || $cpu eq 'kvm32';
2903
2904     $cpu .= "," . join(',', @$cpuFlags) if scalar(@$cpuFlags);
2905
2906     # Note: enforce needs kernel 3.10, so we do not use it for now
2907     # push @$cmd, '-cpu', "$cpu,enforce";
2908     push @$cmd, '-cpu', $cpu;
2909
2910     my $memory = $conf->{memory} || $defaults->{memory};
2911     my $static_memory = 0;
2912     my $dimm_memory = 0;
2913
2914     if ($hotplug_features->{memory}) {
2915         die "Numa need to be enabled for memory hotplug\n" if !$conf->{numa};
2916         die "Total memory is bigger than ${MAX_MEM}MB\n" if $memory > $MAX_MEM;
2917         $static_memory = $STATICMEM;
2918         die "minimum memory must be ${static_memory}MB\n" if($memory < $static_memory);
2919         $dimm_memory = $memory - $static_memory;
2920         push @$cmd, '-m', "size=${static_memory},slots=255,maxmem=${MAX_MEM}M";
2921
2922     } else {
2923
2924         $static_memory = $memory;
2925         push @$cmd, '-m', $static_memory;
2926     }
2927
2928     if ($conf->{numa}) {
2929
2930         my $numa_totalmemory = undef;
2931         for (my $i = 0; $i < $MAX_NUMA; $i++) {
2932             next if !$conf->{"numa$i"};
2933             my $numa = parse_numa($conf->{"numa$i"});
2934             next if !$numa;
2935             # memory
2936             die "missing numa node$i memory value\n" if !$numa->{memory};
2937             my $numa_memory = $numa->{memory};
2938             $numa_totalmemory += $numa_memory;
2939             my $numa_object = "memory-backend-ram,id=ram-node$i,size=${numa_memory}M";
2940
2941             # cpus
2942             my $cpus_start = $numa->{cpus}->{start};
2943             die "missing numa node$i cpus\n" if !defined($cpus_start);
2944             my $cpus_end = $numa->{cpus}->{end} if defined($numa->{cpus}->{end});
2945             my $cpus = $cpus_start;
2946             if (defined($cpus_end)) {
2947                 $cpus .= "-$cpus_end";
2948                 die "numa node$i :  cpu range $cpus is incorrect\n" if $cpus_end <= $cpus_start;
2949             }
2950
2951             # hostnodes
2952             my $hostnodes_start = $numa->{hostnodes}->{start};
2953             if (defined($hostnodes_start)) {
2954                 my $hostnodes_end = $numa->{hostnodes}->{end} if defined($numa->{hostnodes}->{end});
2955                 my $hostnodes = $hostnodes_start;
2956                 if (defined($hostnodes_end)) {
2957                     $hostnodes .= "-$hostnodes_end";
2958                     die "host node $hostnodes range is incorrect\n" if $hostnodes_end <= $hostnodes_start;
2959                 }
2960
2961                 my $hostnodes_end_range = defined($hostnodes_end) ? $hostnodes_end : $hostnodes_start;
2962                 for (my $i = $hostnodes_start; $i <= $hostnodes_end_range; $i++ ) {
2963                     die "host numa node$i don't exist\n" if ! -d "/sys/devices/system/node/node$i/";
2964                 }
2965
2966                 # policy
2967                 my $policy = $numa->{policy};
2968                 die "you need to define a policy for hostnode $hostnodes\n" if !$policy;
2969                 $numa_object .= ",host-nodes=$hostnodes,policy=$policy";
2970             }
2971
2972             push @$cmd, '-object', $numa_object;
2973             push @$cmd, '-numa', "node,nodeid=$i,cpus=$cpus,memdev=ram-node$i";
2974         }
2975
2976         die "total memory for NUMA nodes must be equal to vm static memory\n"
2977             if $numa_totalmemory && $numa_totalmemory != $static_memory;
2978
2979         #if no custom tology, we split memory and cores across numa nodes
2980         if(!$numa_totalmemory) {
2981
2982             my $numa_memory = ($static_memory / $sockets) . "M";
2983
2984             for (my $i = 0; $i < $sockets; $i++)  {
2985
2986                 my $cpustart = ($cores * $i);
2987                 my $cpuend = ($cpustart + $cores - 1) if $cores && $cores > 1;
2988                 my $cpus = $cpustart;
2989                 $cpus .= "-$cpuend" if $cpuend;
2990
2991                 push @$cmd, '-object', "memory-backend-ram,size=$numa_memory,id=ram-node$i";
2992                 push @$cmd, '-numa', "node,nodeid=$i,cpus=$cpus,memdev=ram-node$i";
2993             }
2994         }
2995     }
2996
2997     if ($hotplug_features->{memory}) {
2998         foreach_dimm($conf, $vmid, $memory, $sockets, sub {
2999             my ($conf, $vmid, $name, $dimm_size, $numanode, $current_size, $memory) = @_;
3000             push @$cmd, "-object" , "memory-backend-ram,id=mem-$name,size=${dimm_size}M";
3001             push @$cmd, "-device", "pc-dimm,id=$name,memdev=mem-$name,node=$numanode";
3002
3003             #if dimm_memory is not aligned to dimm map
3004             if($current_size > $memory) {
3005                  $conf->{memory} = $current_size;
3006                  update_config_nolock($vmid, $conf, 1);
3007             }
3008         });
3009     }
3010
3011     push @$cmd, '-S' if $conf->{freeze};
3012
3013     # set keyboard layout
3014     my $kb = $conf->{keyboard} || $defaults->{keyboard};
3015     push @$cmd, '-k', $kb if $kb;
3016
3017     # enable sound
3018     #my $soundhw = $conf->{soundhw} || $defaults->{soundhw};
3019     #push @$cmd, '-soundhw', 'es1370';
3020     #push @$cmd, '-soundhw', $soundhw if $soundhw;
3021
3022     if($conf->{agent}) {
3023         my $qgasocket = qmp_socket($vmid, 1);
3024         my $pciaddr = print_pci_addr("qga0", $bridges);
3025         push @$devices, '-chardev', "socket,path=$qgasocket,server,nowait,id=qga0";
3026         push @$devices, '-device', "virtio-serial,id=qga0$pciaddr";
3027         push @$devices, '-device', 'virtserialport,chardev=qga0,name=org.qemu.guest_agent.0';
3028     }
3029
3030     my $spice_port;
3031
3032     if ($qxlnum) {
3033         if ($qxlnum > 1) {
3034             if ($conf->{ostype} && $conf->{ostype} =~ m/^w/){
3035                 for(my $i = 1; $i < $qxlnum; $i++){
3036                     my $pciaddr = print_pci_addr("vga$i", $bridges);
3037                     push @$cmd, '-device', "qxl,id=vga$i,ram_size=67108864,vram_size=33554432$pciaddr";
3038                 }
3039             } else {
3040                 # assume other OS works like Linux
3041                 push @$cmd, '-global', 'qxl-vga.ram_size=134217728';
3042                 push @$cmd, '-global', 'qxl-vga.vram_size=67108864';
3043             }
3044         }
3045
3046         my $pciaddr = print_pci_addr("spice", $bridges);
3047
3048         $spice_port = PVE::Tools::next_spice_port();
3049
3050         push @$devices, '-spice', "tls-port=${spice_port},addr=127.0.0.1,tls-ciphers=DES-CBC3-SHA,seamless-migration=on";
3051
3052         push @$devices, '-device', "virtio-serial,id=spice$pciaddr";
3053         push @$devices, '-chardev', "spicevmc,id=vdagent,name=vdagent";
3054         push @$devices, '-device', "virtserialport,chardev=vdagent,name=com.redhat.spice.0";
3055     }
3056
3057     # enable balloon by default, unless explicitly disabled
3058     if (!defined($conf->{balloon}) || $conf->{balloon}) {
3059         $pciaddr = print_pci_addr("balloon0", $bridges);
3060         push @$devices, '-device', "virtio-balloon-pci,id=balloon0$pciaddr";
3061     }
3062
3063     if ($conf->{watchdog}) {
3064         my $wdopts = parse_watchdog($conf->{watchdog});
3065         $pciaddr = print_pci_addr("watchdog", $bridges);
3066         my $watchdog = $wdopts->{model} || 'i6300esb';
3067         push @$devices, '-device', "$watchdog$pciaddr";
3068         push @$devices, '-watchdog-action', $wdopts->{action} if $wdopts->{action};
3069     }
3070
3071     my $vollist = [];
3072     my $scsicontroller = {};
3073     my $ahcicontroller = {};
3074     my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : $defaults->{scsihw};
3075
3076     # Add iscsi initiator name if available
3077     if (my $initiator = get_initiator_name()) {
3078         push @$devices, '-iscsi', "initiator-name=$initiator";
3079     }
3080
3081     foreach_drive($conf, sub {
3082         my ($ds, $drive) = @_;
3083
3084         if (PVE::Storage::parse_volume_id($drive->{file}, 1)) {
3085             push @$vollist, $drive->{file};
3086         }
3087
3088         $use_virtio = 1 if $ds =~ m/^virtio/;
3089
3090         if (drive_is_cdrom ($drive)) {
3091             if ($bootindex_hash->{d}) {
3092                 $drive->{bootindex} = $bootindex_hash->{d};
3093                 $bootindex_hash->{d} += 1;
3094             }
3095         } else {
3096             if ($bootindex_hash->{c}) {
3097                 $drive->{bootindex} = $bootindex_hash->{c} if $conf->{bootdisk} && ($conf->{bootdisk} eq $ds);
3098                 $bootindex_hash->{c} += 1;
3099             }
3100         }
3101
3102         if ($drive->{interface} eq 'scsi') {
3103
3104             my $maxdev = ($scsihw !~ m/^lsi/) ? 256 : 7;
3105             my $controller = int($drive->{index} / $maxdev);
3106             $pciaddr = print_pci_addr("scsihw$controller", $bridges);
3107             push @$devices, '-device', "$scsihw,id=scsihw$controller$pciaddr" if !$scsicontroller->{$controller};
3108             $scsicontroller->{$controller}=1;
3109         }
3110
3111         if ($drive->{interface} eq 'sata') {
3112            my $controller = int($drive->{index} / $MAX_SATA_DISKS);
3113            $pciaddr = print_pci_addr("ahci$controller", $bridges);
3114            push @$devices, '-device', "ahci,id=ahci$controller,multifunction=on$pciaddr" if !$ahcicontroller->{$controller};
3115            $ahcicontroller->{$controller}=1;
3116         }
3117
3118         my $drive_cmd = print_drive_full($storecfg, $vmid, $drive);
3119         push @$devices, '-drive',$drive_cmd;
3120         push @$devices, '-device', print_drivedevice_full($storecfg, $conf, $vmid, $drive, $bridges);
3121     });
3122
3123     for (my $i = 0; $i < $MAX_NETS; $i++) {
3124          next if !$conf->{"net$i"};
3125          my $d = parse_net($conf->{"net$i"});
3126          next if !$d;
3127
3128          $use_virtio = 1 if $d->{model} eq 'virtio';
3129
3130          if ($bootindex_hash->{n}) {
3131             $d->{bootindex} = $bootindex_hash->{n};
3132             $bootindex_hash->{n} += 1;
3133          }
3134
3135          my $netdevfull = print_netdev_full($vmid,$conf,$d,"net$i");
3136          push @$devices, '-netdev', $netdevfull;
3137
3138          my $netdevicefull = print_netdevice_full($vmid,$conf,$d,"net$i",$bridges);
3139          push @$devices, '-device', $netdevicefull;
3140     }
3141
3142     if (!$q35) {
3143         # add pci bridges
3144         while (my ($k, $v) = each %$bridges) {
3145             $pciaddr = print_pci_addr("pci.$k");
3146             unshift @$devices, '-device', "pci-bridge,id=pci.$k,chassis_nr=$k$pciaddr" if $k > 0;
3147         }
3148     }
3149
3150     # hack: virtio with fairsched is unreliable, so we do not use fairsched
3151     # when the VM uses virtio devices.
3152     if (!$use_virtio && $have_ovz) {
3153
3154         my $cpuunits = defined($conf->{cpuunits}) ?
3155             $conf->{cpuunits} : $defaults->{cpuunits};
3156
3157         push @$cmd, '-cpuunits', $cpuunits if $cpuunits;
3158
3159         # fixme: cpulimit is currently ignored
3160         #push @$cmd, '-cpulimit', $conf->{cpulimit} if $conf->{cpulimit};
3161     }
3162
3163     # add custom args
3164     if ($conf->{args}) {
3165         my $aa = PVE::Tools::split_args($conf->{args});
3166         push @$cmd, @$aa;
3167     }
3168
3169     push @$cmd, @$devices;
3170     push @$cmd, '-rtc', join(',', @$rtcFlags)
3171         if scalar(@$rtcFlags);
3172     push @$cmd, '-machine', join(',', @$machineFlags)
3173         if scalar(@$machineFlags);
3174     push @$cmd, '-global', join(',', @$globalFlags)
3175         if scalar(@$globalFlags);
3176
3177     return wantarray ? ($cmd, $vollist, $spice_port) : $cmd;
3178 }
3179
3180 sub vnc_socket {
3181     my ($vmid) = @_;
3182     return "${var_run_tmpdir}/$vmid.vnc";
3183 }
3184
3185 sub spice_port {
3186     my ($vmid) = @_;
3187
3188     my $res = vm_mon_cmd($vmid, 'query-spice');
3189
3190     return $res->{'tls-port'} || $res->{'port'} || die "no spice port\n";
3191 }
3192
3193 sub qmp_socket {
3194     my ($vmid, $qga) = @_;
3195     my $sockettype = $qga ? 'qga' : 'qmp';
3196     return "${var_run_tmpdir}/$vmid.$sockettype";
3197 }
3198
3199 sub pidfile_name {
3200     my ($vmid) = @_;
3201     return "${var_run_tmpdir}/$vmid.pid";
3202 }
3203
3204 sub vm_devices_list {
3205     my ($vmid) = @_;
3206
3207     my $res = vm_mon_cmd($vmid, 'query-pci');
3208     my $devices = {};
3209     foreach my $pcibus (@$res) {
3210         foreach my $device (@{$pcibus->{devices}}) {
3211             next if !$device->{'qdev_id'};
3212             $devices->{$device->{'qdev_id'}} = 1;
3213         }
3214     }
3215
3216     my $resblock = vm_mon_cmd($vmid, 'query-block');
3217     foreach my $block (@$resblock) {
3218         if($block->{device} =~ m/^drive-(\S+)/){
3219                 $devices->{$1} = 1;
3220         }
3221     }
3222
3223     my $resmice = vm_mon_cmd($vmid, 'query-mice');
3224     foreach my $mice (@$resmice) {
3225         if ($mice->{name} eq 'QEMU HID Tablet') {
3226             $devices->{tablet} = 1;
3227             last;
3228         }
3229     }
3230
3231     return $devices;
3232 }
3233
3234 sub vm_deviceplug {
3235     my ($storecfg, $conf, $vmid, $deviceid, $device) = @_;
3236
3237     my $q35 = machine_type_is_q35($conf);
3238
3239     my $devices_list = vm_devices_list($vmid);
3240     return 1 if defined($devices_list->{$deviceid});
3241
3242     qemu_add_pci_bridge($storecfg, $conf, $vmid, $deviceid); # add PCI bridge if we need it for the device
3243
3244     if ($deviceid eq 'tablet') {
3245
3246         qemu_deviceadd($vmid, print_tabletdevice_full($conf));
3247
3248     } elsif ($deviceid =~ m/^(virtio)(\d+)$/) {
3249
3250         qemu_driveadd($storecfg, $vmid, $device);
3251         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
3252
3253         qemu_deviceadd($vmid, $devicefull);
3254         eval { qemu_deviceaddverify($vmid, $deviceid); };
3255         if (my $err = $@) {
3256             eval { qemu_drivedel($vmid, $deviceid); };
3257             warn $@ if $@;
3258             die $err;
3259         }
3260
3261     } elsif ($deviceid =~ m/^(scsihw)(\d+)$/) {
3262
3263         my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : "lsi";
3264         my $pciaddr = print_pci_addr($deviceid);
3265         my $devicefull = "$scsihw,id=$deviceid$pciaddr";
3266
3267         qemu_deviceadd($vmid, $devicefull);
3268         qemu_deviceaddverify($vmid, $deviceid);
3269
3270     } elsif ($deviceid =~ m/^(scsi)(\d+)$/) {
3271
3272         qemu_findorcreatescsihw($storecfg,$conf, $vmid, $device);
3273         qemu_driveadd($storecfg, $vmid, $device);
3274
3275         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
3276         eval { qemu_deviceadd($vmid, $devicefull); };
3277         if (my $err = $@) {
3278             eval { qemu_drivedel($vmid, $deviceid); };
3279             warn $@ if $@;
3280             die $err;
3281         }
3282
3283     } elsif ($deviceid =~ m/^(net)(\d+)$/) {
3284
3285         return undef if !qemu_netdevadd($vmid, $conf, $device, $deviceid);
3286         my $netdevicefull = print_netdevice_full($vmid, $conf, $device, $deviceid);
3287         qemu_deviceadd($vmid, $netdevicefull);
3288         eval { qemu_deviceaddverify($vmid, $deviceid); };
3289         if (my $err = $@) {
3290             eval { qemu_netdevdel($vmid, $deviceid); };
3291             warn $@ if $@;
3292             die $err;
3293         }
3294
3295     } elsif (!$q35 && $deviceid =~ m/^(pci\.)(\d+)$/) {
3296
3297         my $bridgeid = $2;
3298         my $pciaddr = print_pci_addr($deviceid);
3299         my $devicefull = "pci-bridge,id=pci.$bridgeid,chassis_nr=$bridgeid$pciaddr";
3300
3301         qemu_deviceadd($vmid, $devicefull);
3302         qemu_deviceaddverify($vmid, $deviceid);
3303
3304     } else {
3305         die "can't hotplug device '$deviceid'\n";
3306     }
3307
3308     return 1;
3309 }
3310
3311 # fixme: this should raise exceptions on error!
3312 sub vm_deviceunplug {
3313     my ($vmid, $conf, $deviceid) = @_;
3314
3315     my $devices_list = vm_devices_list($vmid);
3316     return 1 if !defined($devices_list->{$deviceid});
3317
3318     die "can't unplug bootdisk" if $conf->{bootdisk} && $conf->{bootdisk} eq $deviceid;
3319
3320     if ($deviceid eq 'tablet') {
3321
3322         qemu_devicedel($vmid, $deviceid);
3323
3324     } elsif ($deviceid =~ m/^(virtio)(\d+)$/) {
3325
3326         qemu_devicedel($vmid, $deviceid);
3327         qemu_devicedelverify($vmid, $deviceid);
3328         qemu_drivedel($vmid, $deviceid);
3329
3330     } elsif ($deviceid =~ m/^(lsi)(\d+)$/) {
3331
3332         qemu_devicedel($vmid, $deviceid);
3333
3334     } elsif ($deviceid =~ m/^(scsi)(\d+)$/) {
3335
3336         qemu_devicedel($vmid, $deviceid);
3337         qemu_drivedel($vmid, $deviceid);
3338
3339     } elsif ($deviceid =~ m/^(net)(\d+)$/) {
3340
3341         qemu_devicedel($vmid, $deviceid);
3342         qemu_devicedelverify($vmid, $deviceid);
3343         qemu_netdevdel($vmid, $deviceid);
3344
3345     } else {
3346         die "can't unplug device '$deviceid'\n";
3347     }
3348
3349     return 1;
3350 }
3351
3352 sub qemu_deviceadd {
3353     my ($vmid, $devicefull) = @_;
3354
3355     $devicefull = "driver=".$devicefull;
3356     my %options =  split(/[=,]/, $devicefull);
3357
3358     vm_mon_cmd($vmid, "device_add" , %options);
3359 }
3360
3361 sub qemu_devicedel {
3362     my ($vmid, $deviceid) = @_;
3363
3364     my $ret = vm_mon_cmd($vmid, "device_del", id => $deviceid);
3365 }
3366
3367 sub qemu_objectadd {
3368     my($vmid, $objectid, $qomtype) = @_;
3369
3370     vm_mon_cmd($vmid, "object-add", id => $objectid, "qom-type" => $qomtype);
3371
3372     return 1;
3373 }
3374
3375 sub qemu_objectdel {
3376     my($vmid, $objectid) = @_;
3377
3378     vm_mon_cmd($vmid, "object-del", id => $objectid);
3379
3380     return 1;
3381 }
3382
3383 sub qemu_driveadd {
3384     my ($storecfg, $vmid, $device) = @_;
3385
3386     my $drive = print_drive_full($storecfg, $vmid, $device);
3387     my $ret = vm_human_monitor_command($vmid, "drive_add auto \"$drive\"");
3388
3389     # If the command succeeds qemu prints: "OK"
3390     return 1 if $ret =~ m/OK/s;
3391
3392     die "adding drive failed: $ret\n";
3393 }
3394
3395 sub qemu_drivedel {
3396     my($vmid, $deviceid) = @_;
3397
3398     my $ret = vm_human_monitor_command($vmid, "drive_del drive-$deviceid");
3399     $ret =~ s/^\s+//;
3400
3401     return 1 if $ret eq "";
3402
3403     # NB: device not found errors mean the drive was auto-deleted and we ignore the error
3404     return 1 if $ret =~ m/Device \'.*?\' not found/s;
3405
3406     die "deleting drive $deviceid failed : $ret\n";
3407 }
3408
3409 sub qemu_deviceaddverify {
3410     my ($vmid, $deviceid) = @_;
3411
3412     for (my $i = 0; $i <= 5; $i++) {
3413          my $devices_list = vm_devices_list($vmid);
3414          return 1 if defined($devices_list->{$deviceid});
3415          sleep 1;
3416     }
3417
3418     die "error on hotplug device '$deviceid'\n";
3419 }
3420
3421
3422 sub qemu_devicedelverify {
3423     my ($vmid, $deviceid) = @_;
3424
3425     # need to verify that the device is correctly removed as device_del
3426     # is async and empty return is not reliable
3427
3428     for (my $i = 0; $i <= 5; $i++) {
3429          my $devices_list = vm_devices_list($vmid);
3430          return 1 if !defined($devices_list->{$deviceid});
3431          sleep 1;
3432     }
3433
3434     die "error on hot-unplugging device '$deviceid'\n";
3435 }
3436
3437 sub qemu_findorcreatescsihw {
3438     my ($storecfg, $conf, $vmid, $device) = @_;
3439
3440     my $maxdev = ($conf->{scsihw} && ($conf->{scsihw} !~ m/^lsi/)) ? 256 : 7;
3441     my $controller = int($device->{index} / $maxdev);
3442     my $scsihwid="scsihw$controller";
3443     my $devices_list = vm_devices_list($vmid);
3444
3445     if(!defined($devices_list->{$scsihwid})) {
3446         vm_deviceplug($storecfg, $conf, $vmid, $scsihwid);
3447     }
3448
3449     return 1;
3450 }
3451
3452 sub qemu_add_pci_bridge {
3453     my ($storecfg, $conf, $vmid, $device) = @_;
3454
3455     my $bridges = {};
3456
3457     my $bridgeid;
3458
3459     print_pci_addr($device, $bridges);
3460
3461     while (my ($k, $v) = each %$bridges) {
3462         $bridgeid = $k;
3463     }
3464     return 1 if !defined($bridgeid) || $bridgeid < 1;
3465
3466     my $bridge = "pci.$bridgeid";
3467     my $devices_list = vm_devices_list($vmid);
3468
3469     if (!defined($devices_list->{$bridge})) {
3470         vm_deviceplug($storecfg, $conf, $vmid, $bridge);
3471     }
3472
3473     return 1;
3474 }
3475
3476 sub qemu_set_link_status {
3477     my ($vmid, $device, $up) = @_;
3478
3479     vm_mon_cmd($vmid, "set_link", name => $device,
3480                up => $up ? JSON::true : JSON::false);
3481 }
3482
3483 sub qemu_netdevadd {
3484     my ($vmid, $conf, $device, $deviceid) = @_;
3485
3486     my $netdev = print_netdev_full($vmid, $conf, $device, $deviceid);
3487     my %options =  split(/[=,]/, $netdev);
3488
3489     vm_mon_cmd($vmid, "netdev_add",  %options);
3490     return 1;
3491 }
3492
3493 sub qemu_netdevdel {
3494     my ($vmid, $deviceid) = @_;
3495
3496     vm_mon_cmd($vmid, "netdev_del", id => $deviceid);
3497 }
3498
3499 sub qemu_cpu_hotplug {
3500     my ($vmid, $conf, $vcpus) = @_;
3501
3502     my $sockets = 1;
3503     $sockets = $conf->{smp} if $conf->{smp}; # old style - no longer iused
3504     $sockets = $conf->{sockets} if  $conf->{sockets};
3505     my $cores = $conf->{cores} || 1;
3506     my $maxcpus = $sockets * $cores;
3507
3508     $vcpus = $maxcpus if !$vcpus;
3509
3510     die "you can't add more vcpus than maxcpus\n"
3511         if $vcpus > $maxcpus;
3512
3513     my $currentvcpus = $conf->{vcpus} || $maxcpus;
3514     die "online cpu unplug is not yet possible\n"
3515         if $vcpus < $currentvcpus;
3516
3517     my $currentrunningvcpus = vm_mon_cmd($vmid, "query-cpus");
3518     die "vcpus in running vm is different than configuration\n"
3519         if scalar(@{$currentrunningvcpus}) != $currentvcpus;
3520
3521     for (my $i = $currentvcpus; $i < $vcpus; $i++) {
3522         vm_mon_cmd($vmid, "cpu-add", id => int($i));
3523     }
3524 }
3525
3526 sub qemu_memory_hotplug {
3527     my ($vmid, $conf, $defaults, $opt, $value) = @_;
3528
3529     return $value if !check_running($vmid);
3530
3531     my $memory = $conf->{memory} || $defaults->{memory};
3532     $value = $defaults->{memory} if !$value;
3533     return $value if $value == $memory;
3534
3535     my $static_memory = $STATICMEM;
3536     my $dimm_memory = $memory - $static_memory;
3537
3538     die "memory can't be lower than $static_memory MB" if $value < $static_memory;
3539     die "memory unplug is not yet available" if $value < $memory;
3540     die "you cannot add more memory than $MAX_MEM MB!\n" if $memory > $MAX_MEM;
3541
3542
3543     my $sockets = 1;
3544     $sockets = $conf->{sockets} if $conf->{sockets};
3545
3546     foreach_dimm($conf, $vmid, $value, $sockets, sub {
3547         my ($conf, $vmid, $name, $dimm_size, $numanode, $current_size, $memory) = @_;
3548
3549             return if $current_size <= $conf->{memory};
3550
3551             eval { vm_mon_cmd($vmid, "object-add", 'qom-type' => "memory-backend-ram", id => "mem-$name", props => { size => int($dimm_size*1024*1024) } ) };
3552             if (my $err = $@) {
3553                 eval { qemu_objectdel($vmid, "mem-$name"); };
3554                 die $err;
3555             }
3556
3557             eval { vm_mon_cmd($vmid, "device_add", driver => "pc-dimm", id => "$name", memdev => "mem-$name", node => $numanode) };
3558             if (my $err = $@) {
3559                 eval { qemu_objectdel($vmid, "mem-$name"); };
3560                 die $err;
3561             }
3562             #update conf after each succesful module hotplug
3563             $conf->{memory} = $current_size;
3564             update_config_nolock($vmid, $conf, 1);
3565     });
3566 }
3567
3568 sub qemu_block_set_io_throttle {
3569     my ($vmid, $deviceid, $bps, $bps_rd, $bps_wr, $iops, $iops_rd, $iops_wr) = @_;
3570
3571     return if !check_running($vmid) ;
3572
3573     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($iops_wr));
3574
3575 }
3576
3577 # old code, only used to shutdown old VM after update
3578 sub __read_avail {
3579     my ($fh, $timeout) = @_;
3580
3581     my $sel = new IO::Select;
3582     $sel->add($fh);
3583
3584     my $res = '';
3585     my $buf;
3586
3587     my @ready;
3588     while (scalar (@ready = $sel->can_read($timeout))) {
3589         my $count;
3590         if ($count = $fh->sysread($buf, 8192)) {
3591             if ($buf =~ /^(.*)\(qemu\) $/s) {
3592                 $res .= $1;
3593                 last;
3594             } else {
3595                 $res .= $buf;
3596             }
3597         } else {
3598             if (!defined($count)) {
3599                 die "$!\n";
3600             }
3601             last;
3602         }
3603     }
3604
3605     die "monitor read timeout\n" if !scalar(@ready);
3606
3607     return $res;
3608 }
3609
3610 # old code, only used to shutdown old VM after update
3611 sub vm_monitor_command {
3612     my ($vmid, $cmdstr, $nocheck) = @_;
3613
3614     my $res;
3615
3616     eval {
3617         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
3618
3619         my $sname = "${var_run_tmpdir}/$vmid.mon";
3620
3621         my $sock = IO::Socket::UNIX->new( Peer => $sname ) ||
3622             die "unable to connect to VM $vmid socket - $!\n";
3623
3624         my $timeout = 3;
3625
3626         # hack: migrate sometime blocks the monitor (when migrate_downtime
3627         # is set)
3628         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
3629             $timeout = 60*60; # 1 hour
3630         }
3631
3632         # read banner;
3633         my $data = __read_avail($sock, $timeout);
3634
3635         if ($data !~ m/^QEMU\s+(\S+)\s+monitor\s/) {
3636             die "got unexpected qemu monitor banner\n";
3637         }
3638
3639         my $sel = new IO::Select;
3640         $sel->add($sock);
3641
3642         if (!scalar(my @ready = $sel->can_write($timeout))) {
3643             die "monitor write error - timeout";
3644         }
3645
3646         my $fullcmd = "$cmdstr\r";
3647
3648         # syslog('info', "VM $vmid monitor command: $cmdstr");
3649
3650         my $b;
3651         if (!($b = $sock->syswrite($fullcmd)) || ($b != length($fullcmd))) {
3652             die "monitor write error - $!";
3653         }
3654
3655         return if ($cmdstr eq 'q') || ($cmdstr eq 'quit');
3656
3657         $timeout = 20;
3658
3659         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
3660             $timeout = 60*60; # 1 hour
3661         } elsif ($cmdstr =~ m/^(eject|change)/) {
3662             $timeout = 60; # note: cdrom mount command is slow
3663         }
3664         if ($res = __read_avail($sock, $timeout)) {
3665
3666             my @lines = split("\r?\n", $res);
3667
3668             shift @lines if $lines[0] !~ m/^unknown command/; # skip echo
3669
3670             $res = join("\n", @lines);
3671             $res .= "\n";
3672         }
3673     };
3674
3675     my $err = $@;
3676
3677     if ($err) {
3678         syslog("err", "VM $vmid monitor command failed - $err");
3679         die $err;
3680     }
3681
3682     return $res;
3683 }
3684
3685 sub qemu_block_resize {
3686     my ($vmid, $deviceid, $storecfg, $volid, $size) = @_;
3687
3688     my $running = check_running($vmid);
3689
3690     return if !PVE::Storage::volume_resize($storecfg, $volid, $size, $running);
3691
3692     return if !$running;
3693
3694     vm_mon_cmd($vmid, "block_resize", device => $deviceid, size => int($size));
3695
3696 }
3697
3698 sub qemu_volume_snapshot {
3699     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
3700
3701     my $running = check_running($vmid);
3702
3703     return if !PVE::Storage::volume_snapshot($storecfg, $volid, $snap, $running);
3704
3705     return if !$running;
3706
3707     vm_mon_cmd($vmid, "snapshot-drive", device => $deviceid, name => $snap);
3708
3709 }
3710
3711 sub qemu_volume_snapshot_delete {
3712     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
3713
3714     my $running = check_running($vmid);
3715
3716     return if !PVE::Storage::volume_snapshot_delete($storecfg, $volid, $snap, $running);
3717
3718     return if !$running;
3719
3720     vm_mon_cmd($vmid, "delete-drive-snapshot", device => $deviceid, name => $snap);
3721 }
3722
3723 sub set_migration_caps {
3724     my ($vmid) = @_;
3725
3726     my $cap_ref = [];
3727
3728     my $enabled_cap = {
3729         "auto-converge" => 1,
3730         "xbzrle" => 0,
3731         "x-rdma-pin-all" => 0,
3732         "zero-blocks" => 0,
3733     };
3734
3735     my $supported_capabilities = vm_mon_cmd_nocheck($vmid, "query-migrate-capabilities");
3736
3737     for my $supported_capability (@$supported_capabilities) {
3738         push @$cap_ref, {
3739             capability => $supported_capability->{capability},
3740             state => $enabled_cap->{$supported_capability->{capability}} ? JSON::true : JSON::false,
3741         };
3742     }
3743
3744     vm_mon_cmd_nocheck($vmid, "migrate-set-capabilities", capabilities => $cap_ref);
3745 }
3746
3747 my $fast_plug_option = {
3748     'name' => 1,
3749     'onboot' => 1,
3750     'shares' => 1,
3751     'startup' => 1,
3752 };
3753
3754 # hotplug changes in [PENDING]
3755 # $selection hash can be used to only apply specified options, for
3756 # example: { cores => 1 } (only apply changed 'cores')
3757 # $errors ref is used to return error messages
3758 sub vmconfig_hotplug_pending {
3759     my ($vmid, $conf, $storecfg, $selection, $errors) = @_;
3760
3761     my $defaults = load_defaults();
3762
3763     # commit values which do not have any impact on running VM first
3764     # Note: those option cannot raise errors, we we do not care about
3765     # $selection and always apply them.
3766
3767     my $add_error = sub {
3768         my ($opt, $msg) = @_;
3769         $errors->{$opt} = "hotplug problem - $msg";
3770     };
3771
3772     my $changes = 0;
3773     foreach my $opt (keys %{$conf->{pending}}) { # add/change
3774         if ($fast_plug_option->{$opt}) {
3775             $conf->{$opt} = $conf->{pending}->{$opt};
3776             delete $conf->{pending}->{$opt};
3777             $changes = 1;
3778         }
3779     }
3780
3781     if ($changes) {
3782         update_config_nolock($vmid, $conf, 1);
3783         $conf = load_config($vmid); # update/reload
3784     }
3785
3786     my $hotplug_features = parse_hotplug_features(defined($conf->{hotplug}) ? $conf->{hotplug} : '1');
3787
3788     my @delete = PVE::Tools::split_list($conf->{pending}->{delete});
3789     foreach my $opt (@delete) {
3790         next if $selection && !$selection->{$opt};
3791         eval {
3792             if ($opt eq 'hotplug') {
3793                 die "skip\n" if ($conf->{hotplug} =~ /memory/);
3794             } elsif ($opt eq 'tablet') {
3795                 die "skip\n" if !$hotplug_features->{usb};
3796                 if ($defaults->{tablet}) {
3797                     vm_deviceplug($storecfg, $conf, $vmid, $opt);
3798                 } else {
3799                     vm_deviceunplug($vmid, $conf, $opt);
3800                 }
3801             } elsif ($opt eq 'vcpus') {
3802                 die "skip\n" if !$hotplug_features->{cpu};
3803                 qemu_cpu_hotplug($vmid, $conf, undef);
3804             } elsif ($opt eq 'balloon') {
3805                 # enable balloon device is not hotpluggable
3806                 die "skip\n" if !defined($conf->{balloon}) || $conf->{balloon};
3807             } elsif ($fast_plug_option->{$opt}) {
3808                 # do nothing
3809             } elsif ($opt =~ m/^net(\d+)$/) {
3810                 die "skip\n" if !$hotplug_features->{network};
3811                 vm_deviceunplug($vmid, $conf, $opt);
3812             } elsif (valid_drivename($opt)) {
3813                 die "skip\n" if !$hotplug_features->{disk} || $opt =~ m/(ide|sata)(\d+)/;
3814                 vm_deviceunplug($vmid, $conf, $opt);
3815                 vmconfig_register_unused_drive($storecfg, $vmid, $conf, parse_drive($opt, $conf->{$opt}));
3816             } elsif ($opt =~ m/^memory$/) {
3817                 die "skip\n" if !$hotplug_features->{memory};
3818                 qemu_memory_hotplug($vmid, $conf, $defaults, $opt);
3819             } else {
3820                 die "skip\n";
3821             }
3822         };
3823         if (my $err = $@) {
3824             &$add_error($opt, $err) if $err ne "skip\n";
3825         } else {
3826             # save new config if hotplug was successful
3827             delete $conf->{$opt};
3828             vmconfig_undelete_pending_option($conf, $opt);
3829             update_config_nolock($vmid, $conf, 1);
3830             $conf = load_config($vmid); # update/reload
3831         }
3832     }
3833
3834     foreach my $opt (keys %{$conf->{pending}}) {
3835         next if $selection && !$selection->{$opt};
3836         my $value = $conf->{pending}->{$opt};
3837         eval {
3838             if ($opt eq 'hotplug') {
3839                 die "skip\n" if ($value =~ /memory/) || ($value !~ /memory/ && $conf->{hotplug} =~ /memory/);
3840             } elsif ($opt eq 'tablet') {
3841                 die "skip\n" if !$hotplug_features->{usb};
3842                 if ($value == 1) {
3843                     vm_deviceplug($storecfg, $conf, $vmid, $opt);
3844                 } elsif ($value == 0) {
3845                     vm_deviceunplug($vmid, $conf, $opt);
3846                 }
3847             } elsif ($opt eq 'vcpus') {
3848                 die "skip\n" if !$hotplug_features->{cpu};
3849                 qemu_cpu_hotplug($vmid, $conf, $value);
3850             } elsif ($opt eq 'balloon') {
3851                 # enable/disable balloning device is not hotpluggable
3852                 my $old_balloon_enabled =  !!(!defined($conf->{balloon}) || $conf->{balloon});
3853                 my $new_balloon_enabled =  !!(!defined($conf->{pending}->{balloon}) || $conf->{pending}->{balloon});
3854                 die "skip\n" if $old_balloon_enabled != $new_balloon_enabled;
3855
3856                 # allow manual ballooning if shares is set to zero
3857                 if (!(defined($conf->{shares}) && ($conf->{shares} == 0))) {
3858                     my $balloon = $conf->{pending}->{balloon} || $conf->{memory} || $defaults->{memory};
3859                     vm_mon_cmd($vmid, "balloon", value => $balloon*1024*1024);
3860                 }
3861             } elsif ($opt =~ m/^net(\d+)$/) {
3862                 # some changes can be done without hotplug
3863                 vmconfig_update_net($storecfg, $conf, $hotplug_features->{network},
3864                                     $vmid, $opt, $value);
3865             } elsif (valid_drivename($opt)) {
3866                 # some changes can be done without hotplug
3867                 vmconfig_update_disk($storecfg, $conf, $hotplug_features->{disk},
3868                                      $vmid, $opt, $value, 1);
3869             } elsif ($opt =~ m/^memory$/) { #dimms
3870                 die "skip\n" if !$hotplug_features->{memory};
3871                 $value = qemu_memory_hotplug($vmid, $conf, $defaults, $opt, $value);
3872             } else {
3873                 die "skip\n";  # skip non-hot-pluggable options
3874             }
3875         };
3876         if (my $err = $@) {
3877             &$add_error($opt, $err) if $err ne "skip\n";
3878         } else {
3879             # save new config if hotplug was successful
3880             $conf->{$opt} = $value;
3881             delete $conf->{pending}->{$opt};
3882             update_config_nolock($vmid, $conf, 1);
3883             $conf = load_config($vmid); # update/reload
3884         }
3885     }
3886 }
3887
3888 sub vmconfig_apply_pending {
3889     my ($vmid, $conf, $storecfg) = @_;
3890
3891     # cold plug
3892
3893     my @delete = PVE::Tools::split_list($conf->{pending}->{delete});
3894     foreach my $opt (@delete) { # delete
3895         die "internal error" if $opt =~ m/^unused/;
3896         $conf = load_config($vmid); # update/reload
3897         if (!defined($conf->{$opt})) {
3898             vmconfig_undelete_pending_option($conf, $opt);
3899             update_config_nolock($vmid, $conf, 1);
3900         } elsif (valid_drivename($opt)) {
3901             vmconfig_register_unused_drive($storecfg, $vmid, $conf, parse_drive($opt, $conf->{$opt}));
3902             vmconfig_undelete_pending_option($conf, $opt);
3903             delete $conf->{$opt};
3904             update_config_nolock($vmid, $conf, 1);
3905         } else {
3906             vmconfig_undelete_pending_option($conf, $opt);
3907             delete $conf->{$opt};
3908             update_config_nolock($vmid, $conf, 1);
3909         }
3910     }
3911
3912     $conf = load_config($vmid); # update/reload
3913
3914     foreach my $opt (keys %{$conf->{pending}}) { # add/change
3915         $conf = load_config($vmid); # update/reload
3916
3917         if (defined($conf->{$opt}) && ($conf->{$opt} eq $conf->{pending}->{$opt})) {
3918             # skip if nothing changed
3919         } elsif (valid_drivename($opt)) {
3920             vmconfig_register_unused_drive($storecfg, $vmid, $conf, parse_drive($opt, $conf->{$opt}))
3921                 if defined($conf->{$opt});
3922             $conf->{$opt} = $conf->{pending}->{$opt};
3923         } else {
3924             $conf->{$opt} = $conf->{pending}->{$opt};
3925         }
3926
3927         delete $conf->{pending}->{$opt};
3928         update_config_nolock($vmid, $conf, 1);
3929     }
3930 }
3931
3932 my $safe_num_ne = sub {
3933     my ($a, $b) = @_;
3934
3935     return 0 if !defined($a) && !defined($b);
3936     return 1 if !defined($a);
3937     return 1 if !defined($b);
3938
3939     return $a != $b;
3940 };
3941
3942 my $safe_string_ne = sub {
3943     my ($a, $b) = @_;
3944
3945     return 0 if !defined($a) && !defined($b);
3946     return 1 if !defined($a);
3947     return 1 if !defined($b);
3948
3949     return $a ne $b;
3950 };
3951
3952 sub vmconfig_update_net {
3953     my ($storecfg, $conf, $hotplug, $vmid, $opt, $value) = @_;
3954
3955     my $newnet = parse_net($value);
3956
3957     if ($conf->{$opt}) {
3958         my $oldnet = parse_net($conf->{$opt});
3959
3960         if (&$safe_string_ne($oldnet->{model}, $newnet->{model}) ||
3961             &$safe_string_ne($oldnet->{macaddr}, $newnet->{macaddr}) ||
3962             &$safe_num_ne($oldnet->{queues}, $newnet->{queues}) ||
3963             !($newnet->{bridge} && $oldnet->{bridge})) { # bridge/nat mode change
3964
3965             # for non online change, we try to hot-unplug
3966             die "skip\n" if !$hotplug;
3967             vm_deviceunplug($vmid, $conf, $opt);
3968         } else {
3969
3970             die "internal error" if $opt !~ m/net(\d+)/;
3971             my $iface = "tap${vmid}i$1";
3972
3973             if (&$safe_num_ne($oldnet->{rate}, $newnet->{rate})) {
3974                 PVE::Network::tap_rate_limit($iface, $newnet->{rate});
3975             }
3976
3977             if (&$safe_string_ne($oldnet->{bridge}, $newnet->{bridge}) ||
3978                 &$safe_num_ne($oldnet->{tag}, $newnet->{tag}) ||
3979                 &$safe_num_ne($oldnet->{firewall}, $newnet->{firewall})) {
3980                 PVE::Network::tap_unplug($iface);
3981                 PVE::Network::tap_plug($iface, $newnet->{bridge}, $newnet->{tag}, $newnet->{firewall});
3982             }
3983
3984             if (&$safe_string_ne($oldnet->{link_down}, $newnet->{link_down})) {
3985                 qemu_set_link_status($vmid, $opt, !$newnet->{link_down});
3986             }
3987
3988             return 1;
3989         }
3990     }
3991
3992     if ($hotplug) {
3993         vm_deviceplug($storecfg, $conf, $vmid, $opt, $newnet);
3994     } else {
3995         die "skip\n";
3996     }
3997 }
3998
3999 sub vmconfig_update_disk {
4000     my ($storecfg, $conf, $hotplug, $vmid, $opt, $value, $force) = @_;
4001
4002     # fixme: do we need force?
4003
4004     my $drive = parse_drive($opt, $value);
4005
4006     if ($conf->{$opt}) {
4007
4008         if (my $old_drive = parse_drive($opt, $conf->{$opt}))  {
4009
4010             my $media = $drive->{media} || 'disk';
4011             my $oldmedia = $old_drive->{media} || 'disk';
4012             die "unable to change media type\n" if $media ne $oldmedia;
4013
4014             if (!drive_is_cdrom($old_drive)) {
4015
4016                 if ($drive->{file} ne $old_drive->{file}) {
4017
4018                     die "skip\n" if !$hotplug;
4019
4020                     # unplug and register as unused
4021                     vm_deviceunplug($vmid, $conf, $opt);
4022                     vmconfig_register_unused_drive($storecfg, $vmid, $conf, $old_drive)
4023
4024                 } else {
4025                     # update existing disk
4026
4027                     # skip non hotpluggable value
4028                     if (&$safe_num_ne($drive->{discard}, $old_drive->{discard}) ||
4029                         &$safe_string_ne($drive->{cache}, $old_drive->{cache})) {
4030                         die "skip\n";
4031                     }
4032
4033                     # apply throttle
4034                     if (&$safe_num_ne($drive->{mbps}, $old_drive->{mbps}) ||
4035                         &$safe_num_ne($drive->{mbps_rd}, $old_drive->{mbps_rd}) ||
4036                         &$safe_num_ne($drive->{mbps_wr}, $old_drive->{mbps_wr}) ||
4037                         &$safe_num_ne($drive->{iops}, $old_drive->{iops}) ||
4038                         &$safe_num_ne($drive->{iops_rd}, $old_drive->{iops_rd}) ||
4039                         &$safe_num_ne($drive->{iops_wr}, $old_drive->{iops_wr}) ||
4040                         &$safe_num_ne($drive->{mbps_max}, $old_drive->{mbps_max}) ||
4041                         &$safe_num_ne($drive->{mbps_rd_max}, $old_drive->{mbps_rd_max}) ||
4042                         &$safe_num_ne($drive->{mbps_wr_max}, $old_drive->{mbps_wr_max}) ||
4043                         &$safe_num_ne($drive->{iops_max}, $old_drive->{iops_max}) ||
4044                         &$safe_num_ne($drive->{iops_rd_max}, $old_drive->{iops_rd_max}) ||
4045                         &$safe_num_ne($drive->{iops_wr_max}, $old_drive->{iops_wr_max})) {
4046
4047                         qemu_block_set_io_throttle($vmid,"drive-$opt",
4048                                                    ($drive->{mbps} || 0)*1024*1024,
4049                                                    ($drive->{mbps_rd} || 0)*1024*1024,
4050                                                    ($drive->{mbps_wr} || 0)*1024*1024,
4051                                                    $drive->{iops} || 0,
4052                                                    $drive->{iops_rd} || 0,
4053                                                    $drive->{iops_wr} || 0,
4054                                                    ($drive->{mbps_max} || 0)*1024*1024,
4055                                                    ($drive->{mbps_rd_max} || 0)*1024*1024,
4056                                                    ($drive->{mbps_wr_max} || 0)*1024*1024,
4057                                                    $drive->{iops_max} || 0,
4058                                                    $drive->{iops_rd_max} || 0,
4059                                                    $drive->{iops_wr_max} || 0);
4060
4061                     }
4062
4063                     return 1;
4064                 }
4065             }
4066         }
4067     }
4068
4069     if (drive_is_cdrom($drive)) { # cdrom
4070
4071         if ($drive->{file} eq 'none') {
4072             vm_mon_cmd($vmid, "eject",force => JSON::true,device => "drive-$opt");
4073         } else {
4074             my $path = get_iso_path($storecfg, $vmid, $drive->{file});
4075             vm_mon_cmd($vmid, "eject", force => JSON::true,device => "drive-$opt"); # force eject if locked
4076             vm_mon_cmd($vmid, "change", device => "drive-$opt",target => "$path") if $path;
4077         }
4078
4079     } else {
4080         die "skip\n" if !$hotplug || $opt =~ m/(ide|sata)(\d+)/;
4081         # hotplug new disks
4082         vm_deviceplug($storecfg, $conf, $vmid, $opt, $drive);
4083     }
4084 }
4085
4086 sub vm_start {
4087     my ($storecfg, $vmid, $statefile, $skiplock, $migratedfrom, $paused, $forcemachine, $spice_ticket) = @_;
4088
4089     lock_config($vmid, sub {
4090         my $conf = load_config($vmid, $migratedfrom);
4091
4092         die "you can't start a vm if it's a template\n" if is_template($conf);
4093
4094         check_lock($conf) if !$skiplock;
4095
4096         die "VM $vmid already running\n" if check_running($vmid, undef, $migratedfrom);
4097
4098         if (!$statefile && scalar(keys %{$conf->{pending}})) {
4099             vmconfig_apply_pending($vmid, $conf, $storecfg);
4100             $conf = load_config($vmid); # update/reload
4101         }
4102
4103         my $defaults = load_defaults();
4104
4105         # set environment variable useful inside network script
4106         $ENV{PVE_MIGRATED_FROM} = $migratedfrom if $migratedfrom;
4107
4108         my ($cmd, $vollist, $spice_port) = config_to_command($storecfg, $vmid, $conf, $defaults, $forcemachine);
4109
4110         my $migrate_port = 0;
4111         my $migrate_uri;
4112         if ($statefile) {
4113             if ($statefile eq 'tcp') {
4114                 my $localip = "localhost";
4115                 my $datacenterconf = PVE::Cluster::cfs_read_file('datacenter.cfg');
4116                 if ($datacenterconf->{migration_unsecure}) {
4117                         my $nodename = PVE::INotify::nodename();
4118                         $localip = PVE::Cluster::remote_node_ip($nodename, 1);
4119                 }
4120                 $migrate_port = PVE::Tools::next_migrate_port();
4121                 $migrate_uri = "tcp:${localip}:${migrate_port}";
4122                 push @$cmd, '-incoming', $migrate_uri;
4123                 push @$cmd, '-S';
4124             } else {
4125                 push @$cmd, '-loadstate', $statefile;
4126             }
4127         } elsif ($paused) {
4128             push @$cmd, '-S';
4129         }
4130
4131         # host pci devices
4132         for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
4133           my $d = parse_hostpci($conf->{"hostpci$i"});
4134           next if !$d;
4135           my $pcidevices = $d->{pciid};
4136           foreach my $pcidevice (@$pcidevices) {
4137                 my $pciid = $pcidevice->{id}.".".$pcidevice->{function};
4138
4139                 my $info = pci_device_info("0000:$pciid");
4140                 die "IOMMU not present\n" if !check_iommu_support();
4141                 die "no pci device info for device '$pciid'\n" if !$info;
4142
4143                 if ($d->{driver} && $d->{driver} eq "vfio") {
4144                     die "can't unbind/bind pci group to vfio '$pciid'\n" if !pci_dev_group_bind_to_vfio($pciid);
4145                 } else {
4146                     die "can't unbind/bind to stub pci device '$pciid'\n" if !pci_dev_bind_to_stub($info);
4147                 }
4148
4149                 die "can't reset pci device '$pciid'\n" if $info->{has_fl_reset} and !pci_dev_reset($info);
4150           }
4151         }
4152
4153         PVE::Storage::activate_volumes($storecfg, $vollist);
4154
4155         eval  { run_command($cmd, timeout => $statefile ? undef : 30,
4156                     umask => 0077); };
4157         my $err = $@;
4158         die "start failed: $err" if $err;
4159
4160         print "migration listens on $migrate_uri\n" if $migrate_uri;
4161
4162         if ($statefile && $statefile ne 'tcp')  {
4163             eval { vm_mon_cmd_nocheck($vmid, "cont"); };
4164             warn $@ if $@;
4165         }
4166
4167         if ($migratedfrom) {
4168
4169             eval {
4170                 set_migration_caps($vmid);
4171             };
4172             warn $@ if $@;
4173
4174             if ($spice_port) {
4175                 print "spice listens on port $spice_port\n";
4176                 if ($spice_ticket) {
4177                     vm_mon_cmd_nocheck($vmid, "set_password", protocol => 'spice', password => $spice_ticket);
4178                     vm_mon_cmd_nocheck($vmid, "expire_password", protocol => 'spice', time => "+30");
4179                 }
4180             }
4181
4182         } else {
4183
4184             if (!$statefile && (!defined($conf->{balloon}) || $conf->{balloon})) {
4185                 vm_mon_cmd_nocheck($vmid, "balloon", value => $conf->{balloon}*1024*1024)
4186                     if $conf->{balloon};
4187                 vm_mon_cmd_nocheck($vmid, 'qom-set',
4188                             path => "machine/peripheral/balloon0",
4189                             property => "guest-stats-polling-interval",
4190                             value => 2);
4191             }
4192
4193             foreach my $opt (keys %$conf) {
4194                 next if $opt !~  m/^net\d+$/;
4195                 my $nicconf = parse_net($conf->{$opt});
4196                 qemu_set_link_status($vmid, $opt, 0) if $nicconf->{link_down};
4197             }
4198         }
4199     });
4200 }
4201
4202 sub vm_mon_cmd {
4203     my ($vmid, $execute, %params) = @_;
4204
4205     my $cmd = { execute => $execute, arguments => \%params };
4206     vm_qmp_command($vmid, $cmd);
4207 }
4208
4209 sub vm_mon_cmd_nocheck {
4210     my ($vmid, $execute, %params) = @_;
4211
4212     my $cmd = { execute => $execute, arguments => \%params };
4213     vm_qmp_command($vmid, $cmd, 1);
4214 }
4215
4216 sub vm_qmp_command {
4217     my ($vmid, $cmd, $nocheck) = @_;
4218
4219     my $res;
4220
4221     my $timeout;
4222     if ($cmd->{arguments} && $cmd->{arguments}->{timeout}) {
4223         $timeout = $cmd->{arguments}->{timeout};
4224         delete $cmd->{arguments}->{timeout};
4225     }
4226
4227     eval {
4228         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
4229         my $sname = qmp_socket($vmid);
4230         if (-e $sname) { # test if VM is reasonambe new and supports qmp/qga
4231             my $qmpclient = PVE::QMPClient->new();
4232
4233             $res = $qmpclient->cmd($vmid, $cmd, $timeout);
4234         } elsif (-e "${var_run_tmpdir}/$vmid.mon") {
4235             die "can't execute complex command on old monitor - stop/start your vm to fix the problem\n"
4236                 if scalar(%{$cmd->{arguments}});
4237             vm_monitor_command($vmid, $cmd->{execute}, $nocheck);
4238         } else {
4239             die "unable to open monitor socket\n";
4240         }
4241     };
4242     if (my $err = $@) {
4243         syslog("err", "VM $vmid qmp command failed - $err");
4244         die $err;
4245     }
4246
4247     return $res;
4248 }
4249
4250 sub vm_human_monitor_command {
4251     my ($vmid, $cmdline) = @_;
4252
4253     my $res;
4254
4255     my $cmd = {
4256         execute => 'human-monitor-command',
4257         arguments => { 'command-line' => $cmdline},
4258     };
4259
4260     return vm_qmp_command($vmid, $cmd);
4261 }
4262
4263 sub vm_commandline {
4264     my ($storecfg, $vmid) = @_;
4265
4266     my $conf = load_config($vmid);
4267
4268     my $defaults = load_defaults();
4269
4270     my $cmd = config_to_command($storecfg, $vmid, $conf, $defaults);
4271
4272     return join(' ', @$cmd);
4273 }
4274
4275 sub vm_reset {
4276     my ($vmid, $skiplock) = @_;
4277
4278     lock_config($vmid, sub {
4279
4280         my $conf = load_config($vmid);
4281
4282         check_lock($conf) if !$skiplock;
4283
4284         vm_mon_cmd($vmid, "system_reset");
4285     });
4286 }
4287
4288 sub get_vm_volumes {
4289     my ($conf) = @_;
4290
4291     my $vollist = [];
4292     foreach_volid($conf, sub {
4293         my ($volid, $is_cdrom) = @_;
4294
4295         return if $volid =~ m|^/|;
4296
4297         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
4298         return if !$sid;
4299
4300         push @$vollist, $volid;
4301     });
4302
4303     return $vollist;
4304 }
4305
4306 sub vm_stop_cleanup {
4307     my ($storecfg, $vmid, $conf, $keepActive, $apply_pending_changes) = @_;
4308
4309     eval {
4310         fairsched_rmnod($vmid); # try to destroy group
4311
4312         if (!$keepActive) {
4313             my $vollist = get_vm_volumes($conf);
4314             PVE::Storage::deactivate_volumes($storecfg, $vollist);
4315         }
4316
4317         foreach my $ext (qw(mon qmp pid vnc qga)) {
4318             unlink "/var/run/qemu-server/${vmid}.$ext";
4319         }
4320
4321         vmconfig_apply_pending($vmid, $conf, $storecfg) if $apply_pending_changes;
4322     };
4323     warn $@ if $@; # avoid errors - just warn
4324 }
4325
4326 # Note: use $nockeck to skip tests if VM configuration file exists.
4327 # We need that when migration VMs to other nodes (files already moved)
4328 # Note: we set $keepActive in vzdump stop mode - volumes need to stay active
4329 sub vm_stop {
4330     my ($storecfg, $vmid, $skiplock, $nocheck, $timeout, $shutdown, $force, $keepActive, $migratedfrom) = @_;
4331
4332     $force = 1 if !defined($force) && !$shutdown;
4333
4334     if ($migratedfrom){
4335         my $pid = check_running($vmid, $nocheck, $migratedfrom);
4336         kill 15, $pid if $pid;
4337         my $conf = load_config($vmid, $migratedfrom);
4338         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive, 0);
4339         return;
4340     }
4341
4342     lock_config($vmid, sub {
4343
4344         my $pid = check_running($vmid, $nocheck);
4345         return if !$pid;
4346
4347         my $conf;
4348         if (!$nocheck) {
4349             $conf = load_config($vmid);
4350             check_lock($conf) if !$skiplock;
4351             if (!defined($timeout) && $shutdown && $conf->{startup}) {
4352                 my $opts = parse_startup($conf->{startup});
4353                 $timeout = $opts->{down} if $opts->{down};
4354             }
4355         }
4356
4357         $timeout = 60 if !defined($timeout);
4358
4359         eval {
4360             if ($shutdown) {
4361                 if (defined($conf) && $conf->{agent}) {
4362                     vm_qmp_command($vmid, { execute => "guest-shutdown" }, $nocheck);
4363                 } else {
4364                     vm_qmp_command($vmid, { execute => "system_powerdown" }, $nocheck);
4365                 }
4366             } else {
4367                 vm_qmp_command($vmid, { execute => "quit" }, $nocheck);
4368             }
4369         };
4370         my $err = $@;
4371
4372         if (!$err) {
4373             my $count = 0;
4374             while (($count < $timeout) && check_running($vmid, $nocheck)) {
4375                 $count++;
4376                 sleep 1;
4377             }
4378
4379             if ($count >= $timeout) {
4380                 if ($force) {
4381                     warn "VM still running - terminating now with SIGTERM\n";
4382                     kill 15, $pid;
4383                 } else {
4384                     die "VM quit/powerdown failed - got timeout\n";
4385                 }
4386             } else {
4387                 vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive, 1) if $conf;
4388                 return;
4389             }
4390         } else {
4391             if ($force) {
4392                 warn "VM quit/powerdown failed - terminating now with SIGTERM\n";
4393                 kill 15, $pid;
4394             } else {
4395                 die "VM quit/powerdown failed\n";
4396             }
4397         }
4398
4399         # wait again
4400         $timeout = 10;
4401
4402         my $count = 0;
4403         while (($count < $timeout) && check_running($vmid, $nocheck)) {
4404             $count++;
4405             sleep 1;
4406         }
4407
4408         if ($count >= $timeout) {
4409             warn "VM still running - terminating now with SIGKILL\n";
4410             kill 9, $pid;
4411             sleep 1;
4412         }
4413
4414         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive, 1) if $conf;
4415    });
4416 }
4417
4418 sub vm_suspend {
4419     my ($vmid, $skiplock) = @_;
4420
4421     lock_config($vmid, sub {
4422
4423         my $conf = load_config($vmid);
4424
4425         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
4426
4427         vm_mon_cmd($vmid, "stop");
4428     });
4429 }
4430
4431 sub vm_resume {
4432     my ($vmid, $skiplock) = @_;
4433
4434     lock_config($vmid, sub {
4435
4436         my $conf = load_config($vmid);
4437
4438         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
4439
4440         vm_mon_cmd($vmid, "cont");
4441     });
4442 }
4443
4444 sub vm_sendkey {
4445     my ($vmid, $skiplock, $key) = @_;
4446
4447     lock_config($vmid, sub {
4448
4449         my $conf = load_config($vmid);
4450
4451         # there is no qmp command, so we use the human monitor command
4452         vm_human_monitor_command($vmid, "sendkey $key");
4453     });
4454 }
4455
4456 sub vm_destroy {
4457     my ($storecfg, $vmid, $skiplock) = @_;
4458
4459     lock_config($vmid, sub {
4460
4461         my $conf = load_config($vmid);
4462
4463         check_lock($conf) if !$skiplock;
4464
4465         if (!check_running($vmid)) {
4466             fairsched_rmnod($vmid); # try to destroy group
4467             destroy_vm($storecfg, $vmid);
4468         } else {
4469             die "VM $vmid is running - destroy failed\n";
4470         }
4471     });
4472 }
4473
4474 # pci helpers
4475
4476 sub file_write {
4477     my ($filename, $buf) = @_;
4478
4479     my $fh = IO::File->new($filename, "w");
4480     return undef if !$fh;
4481
4482     my $res = print $fh $buf;
4483
4484     $fh->close();
4485
4486     return $res;
4487 }
4488
4489 sub pci_device_info {
4490     my ($name) = @_;
4491
4492     my $res;
4493
4494     return undef if $name !~ m/^([a-f0-9]{4}):([a-f0-9]{2}):([a-f0-9]{2})\.([a-f0-9])$/;
4495     my ($domain, $bus, $slot, $func) = ($1, $2, $3, $4);
4496
4497     my $irq = file_read_firstline("$pcisysfs/devices/$name/irq");
4498     return undef if !defined($irq) || $irq !~ m/^\d+$/;
4499
4500     my $vendor = file_read_firstline("$pcisysfs/devices/$name/vendor");
4501     return undef if !defined($vendor) || $vendor !~ s/^0x//;
4502
4503     my $product = file_read_firstline("$pcisysfs/devices/$name/device");
4504     return undef if !defined($product) || $product !~ s/^0x//;
4505
4506     $res = {
4507         name => $name,
4508         vendor => $vendor,
4509         product => $product,
4510         domain => $domain,
4511         bus => $bus,
4512         slot => $slot,
4513         func => $func,
4514         irq => $irq,
4515         has_fl_reset => -f "$pcisysfs/devices/$name/reset" || 0,
4516     };
4517
4518     return $res;
4519 }
4520
4521 sub pci_dev_reset {
4522     my ($dev) = @_;
4523
4524     my $name = $dev->{name};
4525
4526     my $fn = "$pcisysfs/devices/$name/reset";
4527
4528     return file_write($fn, "1");
4529 }
4530
4531 sub pci_dev_bind_to_stub {
4532     my ($dev) = @_;
4533
4534     my $name = $dev->{name};
4535
4536     my $testdir = "$pcisysfs/drivers/pci-stub/$name";
4537     return 1 if -d $testdir;
4538
4539     my $data = "$dev->{vendor} $dev->{product}";
4540     return undef if !file_write("$pcisysfs/drivers/pci-stub/new_id", $data);
4541
4542     my $fn = "$pcisysfs/devices/$name/driver/unbind";
4543     if (!file_write($fn, $name)) {
4544         return undef if -f $fn;
4545     }
4546
4547     $fn = "$pcisysfs/drivers/pci-stub/bind";
4548     if (! -d $testdir) {
4549         return undef if !file_write($fn, $name);
4550     }
4551
4552     return -d $testdir;
4553 }
4554
4555 sub pci_dev_bind_to_vfio {
4556     my ($dev) = @_;
4557
4558     my $name = $dev->{name};
4559
4560     my $vfio_basedir = "$pcisysfs/drivers/vfio-pci";
4561
4562     if (!-d $vfio_basedir) {
4563         system("/sbin/modprobe vfio-pci >/dev/null 2>/dev/null");
4564     }
4565     die "Cannot find vfio-pci module!\n" if !-d $vfio_basedir;
4566
4567     my $testdir = "$vfio_basedir/$name";
4568     return 1 if -d $testdir;
4569
4570     my $data = "$dev->{vendor} $dev->{product}";
4571     return undef if !file_write("$vfio_basedir/new_id", $data);
4572
4573     my $fn = "$pcisysfs/devices/$name/driver/unbind";
4574     if (!file_write($fn, $name)) {
4575         return undef if -f $fn;
4576     }
4577
4578     $fn = "$vfio_basedir/bind";
4579     if (! -d $testdir) {
4580         return undef if !file_write($fn, $name);
4581     }
4582
4583     return -d $testdir;
4584 }
4585
4586 sub pci_dev_group_bind_to_vfio {
4587     my ($pciid) = @_;
4588
4589     my $vfio_basedir = "$pcisysfs/drivers/vfio-pci";
4590
4591     if (!-d $vfio_basedir) {
4592         system("/sbin/modprobe vfio-pci >/dev/null 2>/dev/null");
4593     }
4594     die "Cannot find vfio-pci module!\n" if !-d $vfio_basedir;
4595
4596     # get IOMMU group devices
4597     opendir(my $D, "$pcisysfs/devices/0000:$pciid/iommu_group/devices/") || die "Cannot open iommu_group: $!\n";
4598       my @devs = grep /^0000:/, readdir($D);
4599     closedir($D);
4600
4601     foreach my $pciid (@devs) {
4602         $pciid =~ m/^([:\.\da-f]+)$/ or die "PCI ID $pciid not valid!\n";
4603
4604         # pci bridges, switches or root ports are not supported
4605         # they have a pci_bus subdirectory so skip them
4606         next if (-e "$pcisysfs/devices/$pciid/pci_bus");
4607
4608         my $info = pci_device_info($1);
4609         pci_dev_bind_to_vfio($info) || die "Cannot bind $pciid to vfio\n";
4610     }
4611
4612     return 1;
4613 }
4614
4615 sub print_pci_addr {
4616     my ($id, $bridges) = @_;
4617
4618     my $res = '';
4619     my $devices = {
4620         piix3 => { bus => 0, addr => 1 },
4621         #addr2 : first videocard
4622         balloon0 => { bus => 0, addr => 3 },
4623         watchdog => { bus => 0, addr => 4 },
4624         scsihw0 => { bus => 0, addr => 5 },
4625         scsihw1 => { bus => 0, addr => 6 },
4626         ahci0 => { bus => 0, addr => 7 },
4627         qga0 => { bus => 0, addr => 8 },
4628         spice => { bus => 0, addr => 9 },
4629         virtio0 => { bus => 0, addr => 10 },
4630         virtio1 => { bus => 0, addr => 11 },
4631         virtio2 => { bus => 0, addr => 12 },
4632         virtio3 => { bus => 0, addr => 13 },
4633         virtio4 => { bus => 0, addr => 14 },
4634         virtio5 => { bus => 0, addr => 15 },
4635         hostpci0 => { bus => 0, addr => 16 },
4636         hostpci1 => { bus => 0, addr => 17 },
4637         net0 => { bus => 0, addr => 18 },
4638         net1 => { bus => 0, addr => 19 },
4639         net2 => { bus => 0, addr => 20 },
4640         net3 => { bus => 0, addr => 21 },
4641         net4 => { bus => 0, addr => 22 },
4642         net5 => { bus => 0, addr => 23 },
4643         vga1 => { bus => 0, addr => 24 },
4644         vga2 => { bus => 0, addr => 25 },
4645         vga3 => { bus => 0, addr => 26 },
4646         hostpci2 => { bus => 0, addr => 27 },
4647         hostpci3 => { bus => 0, addr => 28 },
4648         #addr29 : usb-host (pve-usb.cfg)
4649         'pci.1' => { bus => 0, addr => 30 },
4650         'pci.2' => { bus => 0, addr => 31 },
4651         'net6' => { bus => 1, addr => 1 },
4652         'net7' => { bus => 1, addr => 2 },
4653         'net8' => { bus => 1, addr => 3 },
4654         'net9' => { bus => 1, addr => 4 },
4655         'net10' => { bus => 1, addr => 5 },
4656         'net11' => { bus => 1, addr => 6 },
4657         'net12' => { bus => 1, addr => 7 },
4658         'net13' => { bus => 1, addr => 8 },
4659         'net14' => { bus => 1, addr => 9 },
4660         'net15' => { bus => 1, addr => 10 },
4661         'net16' => { bus => 1, addr => 11 },
4662         'net17' => { bus => 1, addr => 12 },
4663         'net18' => { bus => 1, addr => 13 },
4664         'net19' => { bus => 1, addr => 14 },
4665         'net20' => { bus => 1, addr => 15 },
4666         'net21' => { bus => 1, addr => 16 },
4667         'net22' => { bus => 1, addr => 17 },
4668         'net23' => { bus => 1, addr => 18 },
4669         'net24' => { bus => 1, addr => 19 },
4670         'net25' => { bus => 1, addr => 20 },
4671         'net26' => { bus => 1, addr => 21 },
4672         'net27' => { bus => 1, addr => 22 },
4673         'net28' => { bus => 1, addr => 23 },
4674         'net29' => { bus => 1, addr => 24 },
4675         'net30' => { bus => 1, addr => 25 },
4676         'net31' => { bus => 1, addr => 26 },
4677         'virtio6' => { bus => 2, addr => 1 },
4678         'virtio7' => { bus => 2, addr => 2 },
4679         'virtio8' => { bus => 2, addr => 3 },
4680         'virtio9' => { bus => 2, addr => 4 },
4681         'virtio10' => { bus => 2, addr => 5 },
4682         'virtio11' => { bus => 2, addr => 6 },
4683         'virtio12' => { bus => 2, addr => 7 },
4684         'virtio13' => { bus => 2, addr => 8 },
4685         'virtio14' => { bus => 2, addr => 9 },
4686         'virtio15' => { bus => 2, addr => 10 },
4687     };
4688
4689     if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
4690            my $addr = sprintf("0x%x", $devices->{$id}->{addr});
4691            my $bus = $devices->{$id}->{bus};
4692            $res = ",bus=pci.$bus,addr=$addr";
4693            $bridges->{$bus} = 1 if $bridges;
4694     }
4695     return $res;
4696
4697 }
4698
4699 sub print_pcie_addr {
4700     my ($id) = @_;
4701
4702     my $res = '';
4703     my $devices = {
4704         hostpci0 => { bus => "ich9-pcie-port-1", addr => 0 },
4705         hostpci1 => { bus => "ich9-pcie-port-2", addr => 0 },
4706         hostpci2 => { bus => "ich9-pcie-port-3", addr => 0 },
4707         hostpci3 => { bus => "ich9-pcie-port-4", addr => 0 },
4708     };
4709
4710     if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
4711            my $addr = sprintf("0x%x", $devices->{$id}->{addr});
4712            my $bus = $devices->{$id}->{bus};
4713            $res = ",bus=$bus,addr=$addr";
4714     }
4715     return $res;
4716
4717 }
4718
4719 # vzdump restore implementaion
4720
4721 sub tar_archive_read_firstfile {
4722     my $archive = shift;
4723
4724     die "ERROR: file '$archive' does not exist\n" if ! -f $archive;
4725
4726     # try to detect archive type first
4727     my $pid = open (TMP, "tar tf '$archive'|") ||
4728         die "unable to open file '$archive'\n";
4729     my $firstfile = <TMP>;
4730     kill 15, $pid;
4731     close TMP;
4732
4733     die "ERROR: archive contaions no data\n" if !$firstfile;
4734     chomp $firstfile;
4735
4736     return $firstfile;
4737 }
4738
4739 sub tar_restore_cleanup {
4740     my ($storecfg, $statfile) = @_;
4741
4742     print STDERR "starting cleanup\n";
4743
4744     if (my $fd = IO::File->new($statfile, "r")) {
4745         while (defined(my $line = <$fd>)) {
4746             if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
4747                 my $volid = $2;
4748                 eval {
4749                     if ($volid =~ m|^/|) {
4750                         unlink $volid || die 'unlink failed\n';
4751                     } else {
4752                         PVE::Storage::vdisk_free($storecfg, $volid);
4753                     }
4754                     print STDERR "temporary volume '$volid' sucessfuly removed\n";
4755                 };
4756                 print STDERR "unable to cleanup '$volid' - $@" if $@;
4757             } else {
4758                 print STDERR "unable to parse line in statfile - $line";
4759             }
4760         }
4761         $fd->close();
4762     }
4763 }
4764
4765 sub restore_archive {
4766     my ($archive, $vmid, $user, $opts) = @_;
4767
4768     my $format = $opts->{format};
4769     my $comp;
4770
4771     if ($archive =~ m/\.tgz$/ || $archive =~ m/\.tar\.gz$/) {
4772         $format = 'tar' if !$format;
4773         $comp = 'gzip';
4774     } elsif ($archive =~ m/\.tar$/) {
4775         $format = 'tar' if !$format;
4776     } elsif ($archive =~ m/.tar.lzo$/) {
4777         $format = 'tar' if !$format;
4778         $comp = 'lzop';
4779     } elsif ($archive =~ m/\.vma$/) {
4780         $format = 'vma' if !$format;
4781     } elsif ($archive =~ m/\.vma\.gz$/) {
4782         $format = 'vma' if !$format;
4783         $comp = 'gzip';
4784     } elsif ($archive =~ m/\.vma\.lzo$/) {
4785         $format = 'vma' if !$format;
4786         $comp = 'lzop';
4787     } else {
4788         $format = 'vma' if !$format; # default
4789     }
4790
4791     # try to detect archive format
4792     if ($format eq 'tar') {
4793         return restore_tar_archive($archive, $vmid, $user, $opts);
4794     } else {
4795         return restore_vma_archive($archive, $vmid, $user, $opts, $comp);
4796     }
4797 }
4798
4799 sub restore_update_config_line {
4800     my ($outfd, $cookie, $vmid, $map, $line, $unique) = @_;
4801
4802     return if $line =~ m/^\#qmdump\#/;
4803     return if $line =~ m/^\#vzdump\#/;
4804     return if $line =~ m/^lock:/;
4805     return if $line =~ m/^unused\d+:/;
4806     return if $line =~ m/^parent:/;
4807     return if $line =~ m/^template:/; # restored VM is never a template
4808
4809     if (($line =~ m/^(vlan(\d+)):\s*(\S+)\s*$/)) {
4810         # try to convert old 1.X settings
4811         my ($id, $ind, $ethcfg) = ($1, $2, $3);
4812         foreach my $devconfig (PVE::Tools::split_list($ethcfg)) {
4813             my ($model, $macaddr) = split(/\=/, $devconfig);
4814             $macaddr = PVE::Tools::random_ether_addr() if !$macaddr || $unique;
4815             my $net = {
4816                 model => $model,
4817                 bridge => "vmbr$ind",
4818                 macaddr => $macaddr,
4819             };
4820             my $netstr = print_net($net);
4821
4822             print $outfd "net$cookie->{netcount}: $netstr\n";
4823             $cookie->{netcount}++;
4824         }
4825     } elsif (($line =~ m/^(net\d+):\s*(\S+)\s*$/) && $unique) {
4826         my ($id, $netstr) = ($1, $2);
4827         my $net = parse_net($netstr);
4828         $net->{macaddr} = PVE::Tools::random_ether_addr() if $net->{macaddr};
4829         $netstr = print_net($net);
4830         print $outfd "$id: $netstr\n";
4831     } elsif ($line =~ m/^((ide|scsi|virtio|sata)\d+):\s*(\S+)\s*$/) {
4832         my $virtdev = $1;
4833         my $value = $3;
4834         if ($line =~ m/backup=no/) {
4835             print $outfd "#$line";
4836         } elsif ($virtdev && $map->{$virtdev}) {
4837             my $di = parse_drive($virtdev, $value);
4838             delete $di->{format}; # format can change on restore
4839             $di->{file} = $map->{$virtdev};
4840             $value = print_drive($vmid, $di);
4841             print $outfd "$virtdev: $value\n";
4842         } else {
4843             print $outfd $line;
4844         }
4845     } else {
4846         print $outfd $line;
4847     }
4848 }
4849
4850 sub scan_volids {
4851     my ($cfg, $vmid) = @_;
4852
4853     my $info = PVE::Storage::vdisk_list($cfg, undef, $vmid);
4854
4855     my $volid_hash = {};
4856     foreach my $storeid (keys %$info) {
4857         foreach my $item (@{$info->{$storeid}}) {
4858             next if !($item->{volid} && $item->{size});
4859             $item->{path} = PVE::Storage::path($cfg, $item->{volid});
4860             $volid_hash->{$item->{volid}} = $item;
4861         }
4862     }
4863
4864     return $volid_hash;
4865 }
4866
4867 sub get_used_paths {
4868     my ($vmid, $storecfg, $conf, $scan_snapshots, $skip_drive) = @_;
4869
4870     my $used_path = {};
4871
4872     my $scan_config = sub {
4873         my ($cref, $snapname) = @_;
4874
4875         foreach my $key (keys %$cref) {
4876             my $value = $cref->{$key};
4877             if (valid_drivename($key)) {
4878                 next if $skip_drive && $key eq $skip_drive;
4879                 my $drive = parse_drive($key, $value);
4880                 next if !$drive || !$drive->{file} || drive_is_cdrom($drive);
4881                 if ($drive->{file} =~ m!^/!) {
4882                     $used_path->{$drive->{file}}++; # = 1;
4883                 } else {
4884                     my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file}, 1);
4885                     next if !$storeid;
4886                     my $scfg = PVE::Storage::storage_config($storecfg, $storeid, 1);
4887                     next if !$scfg;
4888                     my $path = PVE::Storage::path($storecfg, $drive->{file}, $snapname);
4889                     $used_path->{$path}++; # = 1;
4890                 }
4891             }
4892         }
4893     };
4894
4895     &$scan_config($conf);
4896
4897     undef $skip_drive;
4898
4899     if ($scan_snapshots) {
4900         foreach my $snapname (keys %{$conf->{snapshots}}) {
4901             &$scan_config($conf->{snapshots}->{$snapname}, $snapname);
4902         }
4903     }
4904
4905     return $used_path;
4906 }
4907
4908 sub update_disksize {
4909     my ($vmid, $conf, $volid_hash) = @_;
4910
4911     my $changes;
4912
4913     my $used = {};
4914
4915     # Note: it is allowed to define multiple storages with same path (alias), so
4916     # we need to check both 'volid' and real 'path' (two different volid can point
4917     # to the same path).
4918
4919     my $usedpath = {};
4920
4921     # update size info
4922     foreach my $opt (keys %$conf) {
4923         if (valid_drivename($opt)) {
4924             my $drive = parse_drive($opt, $conf->{$opt});
4925             my $volid = $drive->{file};
4926             next if !$volid;
4927
4928             $used->{$volid} = 1;
4929             if ($volid_hash->{$volid} &&
4930                 (my $path = $volid_hash->{$volid}->{path})) {
4931                 $usedpath->{$path} = 1;
4932             }
4933
4934             next if drive_is_cdrom($drive);
4935             next if !$volid_hash->{$volid};
4936
4937             $drive->{size} = $volid_hash->{$volid}->{size};
4938             my $new = print_drive($vmid, $drive);
4939             if ($new ne $conf->{$opt}) {
4940                 $changes = 1;
4941                 $conf->{$opt} = $new;
4942             }
4943         }
4944     }
4945
4946     # remove 'unusedX' entry if volume is used
4947     foreach my $opt (keys %$conf) {
4948         next if $opt !~ m/^unused\d+$/;
4949         my $volid = $conf->{$opt};
4950         my $path = $volid_hash->{$volid}->{path} if $volid_hash->{$volid};
4951         if ($used->{$volid} || ($path && $usedpath->{$path})) {
4952             $changes = 1;
4953             delete $conf->{$opt};
4954         }
4955     }
4956
4957     foreach my $volid (sort keys %$volid_hash) {
4958         next if $volid =~ m/vm-$vmid-state-/;
4959         next if $used->{$volid};
4960         my $path = $volid_hash->{$volid}->{path};
4961         next if !$path; # just to be sure
4962         next if $usedpath->{$path};
4963         $changes = 1;
4964         add_unused_volume($conf, $volid);
4965         $usedpath->{$path} = 1; # avoid to add more than once (aliases)
4966     }
4967
4968     return $changes;
4969 }
4970
4971 sub rescan {
4972     my ($vmid, $nolock) = @_;
4973
4974     my $cfg = PVE::Cluster::cfs_read_file("storage.cfg");
4975
4976     my $volid_hash = scan_volids($cfg, $vmid);
4977
4978     my $updatefn =  sub {
4979         my ($vmid) = @_;
4980
4981         my $conf = load_config($vmid);
4982
4983         check_lock($conf);
4984
4985         my $vm_volids = {};
4986         foreach my $volid (keys %$volid_hash) {
4987             my $info = $volid_hash->{$volid};
4988             $vm_volids->{$volid} = $info if $info->{vmid} && $info->{vmid} == $vmid;
4989         }
4990
4991         my $changes = update_disksize($vmid, $conf, $vm_volids);
4992
4993         update_config_nolock($vmid, $conf, 1) if $changes;
4994     };
4995
4996     if (defined($vmid)) {
4997         if ($nolock) {
4998             &$updatefn($vmid);
4999         } else {
5000             lock_config($vmid, $updatefn, $vmid);
5001         }
5002     } else {
5003         my $vmlist = config_list();
5004         foreach my $vmid (keys %$vmlist) {
5005             if ($nolock) {
5006                 &$updatefn($vmid);
5007             } else {
5008                 lock_config($vmid, $updatefn, $vmid);
5009             }
5010         }
5011     }
5012 }
5013
5014 sub restore_vma_archive {
5015     my ($archive, $vmid, $user, $opts, $comp) = @_;
5016
5017     my $input = $archive eq '-' ? "<&STDIN" : undef;
5018     my $readfrom = $archive;
5019
5020     my $uncomp = '';
5021     if ($comp) {
5022         $readfrom = '-';
5023         my $qarchive = PVE::Tools::shellquote($archive);
5024         if ($comp eq 'gzip') {
5025             $uncomp = "zcat $qarchive|";
5026         } elsif ($comp eq 'lzop') {
5027             $uncomp = "lzop -d -c $qarchive|";
5028         } else {
5029             die "unknown compression method '$comp'\n";
5030         }
5031
5032     }
5033
5034     my $tmpdir = "/var/tmp/vzdumptmp$$";
5035     rmtree $tmpdir;
5036
5037     # disable interrupts (always do cleanups)
5038     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
5039         warn "got interrupt - ignored\n";
5040     };
5041
5042     my $mapfifo = "/var/tmp/vzdumptmp$$.fifo";
5043     POSIX::mkfifo($mapfifo, 0600);
5044     my $fifofh;
5045
5046     my $openfifo = sub {
5047         open($fifofh, '>', $mapfifo) || die $!;
5048     };
5049
5050     my $cmd = "${uncomp}vma extract -v -r $mapfifo $readfrom $tmpdir";
5051
5052     my $oldtimeout;
5053     my $timeout = 5;
5054
5055     my $devinfo = {};
5056
5057     my $rpcenv = PVE::RPCEnvironment::get();
5058
5059     my $conffile = config_file($vmid);
5060     my $tmpfn = "$conffile.$$.tmp";
5061
5062     # Note: $oldconf is undef if VM does not exists
5063     my $oldconf = PVE::Cluster::cfs_read_file(cfs_config_path($vmid));
5064
5065     my $print_devmap = sub {
5066         my $virtdev_hash = {};
5067
5068         my $cfgfn = "$tmpdir/qemu-server.conf";
5069
5070         # we can read the config - that is already extracted
5071         my $fh = IO::File->new($cfgfn, "r") ||
5072             "unable to read qemu-server.conf - $!\n";
5073
5074         while (defined(my $line = <$fh>)) {
5075             if ($line =~ m/^\#qmdump\#map:(\S+):(\S+):(\S*):(\S*):$/) {
5076                 my ($virtdev, $devname, $storeid, $format) = ($1, $2, $3, $4);
5077                 die "archive does not contain data for drive '$virtdev'\n"
5078                     if !$devinfo->{$devname};
5079                 if (defined($opts->{storage})) {
5080                     $storeid = $opts->{storage} || 'local';
5081                 } elsif (!$storeid) {
5082                     $storeid = 'local';
5083                 }
5084                 $format = 'raw' if !$format;
5085                 $devinfo->{$devname}->{devname} = $devname;
5086                 $devinfo->{$devname}->{virtdev} = $virtdev;
5087                 $devinfo->{$devname}->{format} = $format;
5088                 $devinfo->{$devname}->{storeid} = $storeid;
5089
5090                 # check permission on storage
5091                 my $pool = $opts->{pool}; # todo: do we need that?
5092                 if ($user ne 'root@pam') {
5093                     $rpcenv->check($user, "/storage/$storeid", ['Datastore.AllocateSpace']);
5094                 }
5095
5096                 $virtdev_hash->{$virtdev} = $devinfo->{$devname};
5097             }
5098         }
5099
5100         foreach my $devname (keys %$devinfo) {
5101             die "found no device mapping information for device '$devname'\n"
5102                 if !$devinfo->{$devname}->{virtdev};
5103         }
5104
5105         my $cfg = cfs_read_file('storage.cfg');
5106
5107         # create empty/temp config
5108         if ($oldconf) {
5109             PVE::Tools::file_set_contents($conffile, "memory: 128\n");
5110             foreach_drive($oldconf, sub {
5111                 my ($ds, $drive) = @_;
5112
5113                 return if drive_is_cdrom($drive);
5114
5115                 my $volid = $drive->{file};
5116
5117                 return if !$volid || $volid =~ m|^/|;
5118
5119                 my ($path, $owner) = PVE::Storage::path($cfg, $volid);
5120                 return if !$path || !$owner || ($owner != $vmid);
5121
5122                 # Note: only delete disk we want to restore
5123                 # other volumes will become unused
5124                 if ($virtdev_hash->{$ds}) {
5125                     PVE::Storage::vdisk_free($cfg, $volid);
5126                 }
5127             });
5128         }
5129
5130         my $map = {};
5131         foreach my $virtdev (sort keys %$virtdev_hash) {
5132             my $d = $virtdev_hash->{$virtdev};
5133             my $alloc_size = int(($d->{size} + 1024 - 1)/1024);
5134             my $scfg = PVE::Storage::storage_config($cfg, $d->{storeid});
5135
5136             # test if requested format is supported
5137             my ($defFormat, $validFormats) = PVE::Storage::storage_default_format($cfg, $d->{storeid});
5138             my $supported = grep { $_ eq $d->{format} } @$validFormats;
5139             $d->{format} = $defFormat if !$supported;
5140
5141             my $volid = PVE::Storage::vdisk_alloc($cfg, $d->{storeid}, $vmid,
5142                                                   $d->{format}, undef, $alloc_size);
5143             print STDERR "new volume ID is '$volid'\n";
5144             $d->{volid} = $volid;
5145             my $path = PVE::Storage::path($cfg, $volid);
5146
5147             my $write_zeros = 1;
5148             # fixme: what other storages types initialize volumes with zero?
5149             if ($scfg->{type} eq 'dir' || $scfg->{type} eq 'nfs' || $scfg->{type} eq 'glusterfs' ||
5150                 $scfg->{type} eq 'sheepdog' || $scfg->{type} eq 'rbd') {
5151                 $write_zeros = 0;
5152             }
5153
5154             print $fifofh "${write_zeros}:$d->{devname}=$path\n";
5155
5156             print "map '$d->{devname}' to '$path' (write zeros = ${write_zeros})\n";
5157             $map->{$virtdev} = $volid;
5158         }
5159
5160         $fh->seek(0, 0) || die "seek failed - $!\n";
5161
5162         my $outfd = new IO::File ($tmpfn, "w") ||
5163             die "unable to write config for VM $vmid\n";
5164
5165         my $cookie = { netcount => 0 };
5166         while (defined(my $line = <$fh>)) {
5167             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
5168         }
5169
5170         $fh->close();
5171         $outfd->close();
5172     };
5173
5174     eval {
5175         # enable interrupts
5176         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
5177             die "interrupted by signal\n";
5178         };
5179         local $SIG{ALRM} = sub { die "got timeout\n"; };
5180
5181         $oldtimeout = alarm($timeout);
5182
5183         my $parser = sub {
5184             my $line = shift;
5185
5186             print "$line\n";
5187
5188             if ($line =~ m/^DEV:\sdev_id=(\d+)\ssize:\s(\d+)\sdevname:\s(\S+)$/) {
5189                 my ($dev_id, $size, $devname) = ($1, $2, $3);
5190                 $devinfo->{$devname} = { size => $size, dev_id => $dev_id };
5191             } elsif ($line =~ m/^CTIME: /) {
5192                 # we correctly received the vma config, so we can disable
5193                 # the timeout now for disk allocation (set to 10 minutes, so
5194                 # that we always timeout if something goes wrong)
5195                 alarm(600);
5196                 &$print_devmap();
5197                 print $fifofh "done\n";
5198                 my $tmp = $oldtimeout || 0;
5199                 $oldtimeout = undef;
5200                 alarm($tmp);
5201                 close($fifofh);
5202             }
5203         };
5204
5205         print "restore vma archive: $cmd\n";
5206         run_command($cmd, input => $input, outfunc => $parser, afterfork => $openfifo);
5207     };
5208     my $err = $@;
5209
5210     alarm($oldtimeout) if $oldtimeout;
5211
5212     unlink $mapfifo;
5213
5214     if ($err) {
5215         rmtree $tmpdir;
5216         unlink $tmpfn;
5217
5218         my $cfg = cfs_read_file('storage.cfg');
5219         foreach my $devname (keys %$devinfo) {
5220             my $volid = $devinfo->{$devname}->{volid};
5221             next if !$volid;
5222             eval {
5223                 if ($volid =~ m|^/|) {
5224                     unlink $volid || die 'unlink failed\n';
5225                 } else {
5226                     PVE::Storage::vdisk_free($cfg, $volid);
5227                 }
5228                 print STDERR "temporary volume '$volid' sucessfuly removed\n";
5229             };
5230             print STDERR "unable to cleanup '$volid' - $@" if $@;
5231         }
5232         die $err;
5233     }
5234
5235     rmtree $tmpdir;
5236
5237     rename($tmpfn, $conffile) ||
5238         die "unable to commit configuration file '$conffile'\n";
5239
5240     PVE::Cluster::cfs_update(); # make sure we read new file
5241
5242     eval { rescan($vmid, 1); };
5243     warn $@ if $@;
5244 }
5245
5246 sub restore_tar_archive {
5247     my ($archive, $vmid, $user, $opts) = @_;
5248
5249     if ($archive ne '-') {
5250         my $firstfile = tar_archive_read_firstfile($archive);
5251         die "ERROR: file '$archive' dos not lock like a QemuServer vzdump backup\n"
5252             if $firstfile ne 'qemu-server.conf';
5253     }
5254
5255     my $storecfg = cfs_read_file('storage.cfg');
5256
5257     # destroy existing data - keep empty config
5258     my $vmcfgfn = config_file($vmid);
5259     destroy_vm($storecfg, $vmid, 1) if -f $vmcfgfn;
5260
5261     my $tocmd = "/usr/lib/qemu-server/qmextract";
5262
5263     $tocmd .= " --storage " . PVE::Tools::shellquote($opts->{storage}) if $opts->{storage};
5264     $tocmd .= " --pool " . PVE::Tools::shellquote($opts->{pool}) if $opts->{pool};
5265     $tocmd .= ' --prealloc' if $opts->{prealloc};
5266     $tocmd .= ' --info' if $opts->{info};
5267
5268     # tar option "xf" does not autodetect compression when read from STDIN,
5269     # so we pipe to zcat
5270     my $cmd = "zcat -f|tar xf " . PVE::Tools::shellquote($archive) . " " .
5271         PVE::Tools::shellquote("--to-command=$tocmd");
5272
5273     my $tmpdir = "/var/tmp/vzdumptmp$$";
5274     mkpath $tmpdir;
5275
5276     local $ENV{VZDUMP_TMPDIR} = $tmpdir;
5277     local $ENV{VZDUMP_VMID} = $vmid;
5278     local $ENV{VZDUMP_USER} = $user;
5279
5280     my $conffile = config_file($vmid);
5281     my $tmpfn = "$conffile.$$.tmp";
5282
5283     # disable interrupts (always do cleanups)
5284     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
5285         print STDERR "got interrupt - ignored\n";
5286     };
5287
5288     eval {
5289         # enable interrupts
5290         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
5291             die "interrupted by signal\n";
5292         };
5293
5294         if ($archive eq '-') {
5295             print "extracting archive from STDIN\n";
5296             run_command($cmd, input => "<&STDIN");
5297         } else {
5298             print "extracting archive '$archive'\n";
5299             run_command($cmd);
5300         }
5301
5302         return if $opts->{info};
5303
5304         # read new mapping
5305         my $map = {};
5306         my $statfile = "$tmpdir/qmrestore.stat";
5307         if (my $fd = IO::File->new($statfile, "r")) {
5308             while (defined (my $line = <$fd>)) {
5309                 if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
5310                     $map->{$1} = $2 if $1;
5311                 } else {
5312                     print STDERR "unable to parse line in statfile - $line\n";
5313                 }
5314             }
5315             $fd->close();
5316         }
5317
5318         my $confsrc = "$tmpdir/qemu-server.conf";
5319
5320         my $srcfd = new IO::File($confsrc, "r") ||
5321             die "unable to open file '$confsrc'\n";
5322
5323         my $outfd = new IO::File ($tmpfn, "w") ||
5324             die "unable to write config for VM $vmid\n";
5325
5326         my $cookie = { netcount => 0 };
5327         while (defined (my $line = <$srcfd>)) {
5328             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
5329         }
5330
5331         $srcfd->close();
5332         $outfd->close();
5333     };
5334     my $err = $@;
5335
5336     if ($err) {
5337
5338         unlink $tmpfn;
5339
5340         tar_restore_cleanup($storecfg, "$tmpdir/qmrestore.stat") if !$opts->{info};
5341
5342         die $err;
5343     }
5344
5345     rmtree $tmpdir;
5346
5347     rename $tmpfn, $conffile ||
5348         die "unable to commit configuration file '$conffile'\n";
5349
5350     PVE::Cluster::cfs_update(); # make sure we read new file
5351
5352     eval { rescan($vmid, 1); };
5353     warn $@ if $@;
5354 };
5355
5356
5357 # Internal snapshots
5358
5359 # NOTE: Snapshot create/delete involves several non-atomic
5360 # action, and can take a long time.
5361 # So we try to avoid locking the file and use 'lock' variable
5362 # inside the config file instead.
5363
5364 my $snapshot_copy_config = sub {
5365     my ($source, $dest) = @_;
5366
5367     foreach my $k (keys %$source) {
5368         next if $k eq 'snapshots';
5369         next if $k eq 'snapstate';
5370         next if $k eq 'snaptime';
5371         next if $k eq 'vmstate';
5372         next if $k eq 'lock';
5373         next if $k eq 'digest';
5374         next if $k eq 'description';
5375         next if $k =~ m/^unused\d+$/;
5376
5377         $dest->{$k} = $source->{$k};
5378     }
5379 };
5380
5381 my $snapshot_apply_config = sub {
5382     my ($conf, $snap) = @_;
5383
5384     # copy snapshot list
5385     my $newconf = {
5386         snapshots => $conf->{snapshots},
5387     };
5388
5389     # keep description and list of unused disks
5390     foreach my $k (keys %$conf) {
5391         next if !($k =~ m/^unused\d+$/ || $k eq 'description');
5392         $newconf->{$k} = $conf->{$k};
5393     }
5394
5395     &$snapshot_copy_config($snap, $newconf);
5396
5397     return $newconf;
5398 };
5399
5400 sub foreach_writable_storage {
5401     my ($conf, $func) = @_;
5402
5403     my $sidhash = {};
5404
5405     foreach my $ds (keys %$conf) {
5406         next if !valid_drivename($ds);
5407
5408         my $drive = parse_drive($ds, $conf->{$ds});
5409         next if !$drive;
5410         next if drive_is_cdrom($drive);
5411
5412         my $volid = $drive->{file};
5413
5414         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
5415         $sidhash->{$sid} = $sid if $sid;
5416     }
5417
5418     foreach my $sid (sort keys %$sidhash) {
5419         &$func($sid);
5420     }
5421 }
5422
5423 my $alloc_vmstate_volid = sub {
5424     my ($storecfg, $vmid, $conf, $snapname) = @_;
5425
5426     # Note: we try to be smart when selecting a $target storage
5427
5428     my $target;
5429
5430     # search shared storage first
5431     foreach_writable_storage($conf, sub {
5432         my ($sid) = @_;
5433         my $scfg = PVE::Storage::storage_config($storecfg, $sid);
5434         return if !$scfg->{shared};
5435
5436         $target = $sid if !$target || $scfg->{path}; # prefer file based storage
5437     });
5438
5439     if (!$target) {
5440         # now search local storage
5441         foreach_writable_storage($conf, sub {
5442             my ($sid) = @_;
5443             my $scfg = PVE::Storage::storage_config($storecfg, $sid);
5444             return if $scfg->{shared};
5445
5446             $target = $sid if !$target || $scfg->{path}; # prefer file based storage;
5447         });
5448     }
5449
5450     $target = 'local' if !$target;
5451
5452     my $driver_state_size = 500; # assume 32MB is enough to safe all driver state;
5453     # we abort live save after $conf->{memory}, so we need at max twice that space
5454     my $size = $conf->{memory}*2 + $driver_state_size;
5455
5456     my $name = "vm-$vmid-state-$snapname";
5457     my $scfg = PVE::Storage::storage_config($storecfg, $target);
5458     $name .= ".raw" if $scfg->{path}; # add filename extension for file base storage
5459     my $volid = PVE::Storage::vdisk_alloc($storecfg, $target, $vmid, 'raw', $name, $size*1024);
5460
5461     return $volid;
5462 };
5463
5464 my $snapshot_prepare = sub {
5465     my ($vmid, $snapname, $save_vmstate, $comment) = @_;
5466
5467     my $snap;
5468
5469     my $updatefn =  sub {
5470
5471         my $conf = load_config($vmid);
5472
5473         die "you can't take a snapshot if it's a template\n"
5474             if is_template($conf);
5475
5476         check_lock($conf);
5477
5478         $conf->{lock} = 'snapshot';
5479
5480         die "snapshot name '$snapname' already used\n"
5481             if defined($conf->{snapshots}->{$snapname});
5482
5483         my $storecfg = PVE::Storage::config();
5484         die "snapshot feature is not available" if !has_feature('snapshot', $conf, $storecfg);
5485
5486         $snap = $conf->{snapshots}->{$snapname} = {};
5487
5488         if ($save_vmstate && check_running($vmid)) {
5489             $snap->{vmstate} = &$alloc_vmstate_volid($storecfg, $vmid, $conf, $snapname);
5490         }
5491
5492         &$snapshot_copy_config($conf, $snap);
5493
5494         $snap->{snapstate} = "prepare";
5495         $snap->{snaptime} = time();
5496         $snap->{description} = $comment if $comment;
5497
5498         # always overwrite machine if we save vmstate. This makes sure we
5499         # can restore it later using correct machine type
5500         $snap->{machine} = get_current_qemu_machine($vmid) if $snap->{vmstate};
5501
5502         update_config_nolock($vmid, $conf, 1);
5503     };
5504
5505     lock_config($vmid, $updatefn);
5506
5507     return $snap;
5508 };
5509
5510 my $snapshot_commit = sub {
5511     my ($vmid, $snapname) = @_;
5512
5513     my $updatefn = sub {
5514
5515         my $conf = load_config($vmid);
5516
5517         die "missing snapshot lock\n"
5518             if !($conf->{lock} && $conf->{lock} eq 'snapshot');
5519
5520         my $has_machine_config = defined($conf->{machine});
5521
5522         my $snap = $conf->{snapshots}->{$snapname};
5523
5524         die "snapshot '$snapname' does not exist\n" if !defined($snap);
5525
5526         die "wrong snapshot state\n"
5527             if !($snap->{snapstate} && $snap->{snapstate} eq "prepare");
5528
5529         delete $snap->{snapstate};
5530         delete $conf->{lock};
5531
5532         my $newconf = &$snapshot_apply_config($conf, $snap);
5533
5534         delete $newconf->{machine} if !$has_machine_config;
5535
5536         $newconf->{parent} = $snapname;
5537
5538         update_config_nolock($vmid, $newconf, 1);
5539     };
5540
5541     lock_config($vmid, $updatefn);
5542 };
5543
5544 sub snapshot_rollback {
5545     my ($vmid, $snapname) = @_;
5546
5547     my $snap;
5548
5549     my $prepare = 1;
5550
5551     my $storecfg = PVE::Storage::config();
5552
5553     my $updatefn = sub {
5554
5555         my $conf = load_config($vmid);
5556
5557         die "you can't rollback if vm is a template\n" if is_template($conf);
5558
5559         $snap = $conf->{snapshots}->{$snapname};
5560
5561         die "snapshot '$snapname' does not exist\n" if !defined($snap);
5562
5563         die "unable to rollback to incomplete snapshot (snapstate = $snap->{snapstate})\n"
5564             if $snap->{snapstate};
5565
5566         if ($prepare) {
5567             check_lock($conf);
5568             vm_stop($storecfg, $vmid, undef, undef, 5, undef, undef);
5569         }
5570
5571         die "unable to rollback vm $vmid: vm is running\n"
5572             if check_running($vmid);
5573
5574         if ($prepare) {
5575             $conf->{lock} = 'rollback';
5576         } else {
5577             die "got wrong lock\n" if !($conf->{lock} && $conf->{lock} eq 'rollback');
5578             delete $conf->{lock};
5579         }
5580
5581         my $forcemachine;
5582
5583         if (!$prepare) {
5584             my $has_machine_config = defined($conf->{machine});
5585
5586             # copy snapshot config to current config
5587             $conf = &$snapshot_apply_config($conf, $snap);
5588             $conf->{parent} = $snapname;
5589
5590             # Note: old code did not store 'machine', so we try to be smart
5591             # and guess the snapshot was generated with kvm 1.4 (pc-i440fx-1.4).
5592             $forcemachine = $conf->{machine} || 'pc-i440fx-1.4';
5593             # we remove the 'machine' configuration if not explicitly specified
5594             # in the original config.
5595             delete $conf->{machine} if $snap->{vmstate} && !$has_machine_config;
5596         }
5597
5598         update_config_nolock($vmid, $conf, 1);
5599
5600         if (!$prepare && $snap->{vmstate}) {
5601             my $statefile = PVE::Storage::path($storecfg, $snap->{vmstate});
5602             vm_start($storecfg, $vmid, $statefile, undef, undef, undef, $forcemachine);
5603         }
5604     };
5605
5606     lock_config($vmid, $updatefn);
5607
5608     foreach_drive($snap, sub {
5609         my ($ds, $drive) = @_;
5610
5611         return if drive_is_cdrom($drive);
5612
5613         my $volid = $drive->{file};
5614         my $device = "drive-$ds";
5615
5616         PVE::Storage::volume_snapshot_rollback($storecfg, $volid, $snapname);
5617     });
5618
5619     $prepare = 0;
5620     lock_config($vmid, $updatefn);
5621 }
5622
5623 my $savevm_wait = sub {
5624     my ($vmid) = @_;
5625
5626     for(;;) {
5627         my $stat = vm_mon_cmd_nocheck($vmid, "query-savevm");
5628         if (!$stat->{status}) {
5629             die "savevm not active\n";
5630         } elsif ($stat->{status} eq 'active') {
5631             sleep(1);
5632             next;
5633         } elsif ($stat->{status} eq 'completed') {
5634             last;
5635         } else {
5636             die "query-savevm returned status '$stat->{status}'\n";
5637         }
5638     }
5639 };
5640
5641 sub snapshot_create {
5642     my ($vmid, $snapname, $save_vmstate, $comment) = @_;
5643
5644     my $snap = &$snapshot_prepare($vmid, $snapname, $save_vmstate, $comment);
5645
5646     $save_vmstate = 0 if !$snap->{vmstate}; # vm is not running
5647
5648     my $config = load_config($vmid);
5649
5650     my $running = check_running($vmid);
5651
5652     my $freezefs = $running && $config->{agent};
5653     $freezefs = 0 if $snap->{vmstate}; # not needed if we save RAM
5654
5655     my $drivehash = {};
5656
5657     if ($freezefs) {
5658         eval { vm_mon_cmd($vmid, "guest-fsfreeze-freeze"); };
5659         warn "guest-fsfreeze-freeze problems - $@" if $@;
5660     }
5661
5662     eval {
5663         # create internal snapshots of all drives
5664
5665         my $storecfg = PVE::Storage::config();
5666
5667         if ($running) {
5668             if ($snap->{vmstate}) {
5669                 my $path = PVE::Storage::path($storecfg, $snap->{vmstate});
5670                 vm_mon_cmd($vmid, "savevm-start", statefile => $path);
5671                 &$savevm_wait($vmid);
5672             } else {
5673                 vm_mon_cmd($vmid, "savevm-start");
5674             }
5675         };
5676
5677         foreach_drive($snap, sub {
5678             my ($ds, $drive) = @_;
5679
5680             return if drive_is_cdrom($drive);
5681
5682             my $volid = $drive->{file};
5683             my $device = "drive-$ds";
5684
5685             qemu_volume_snapshot($vmid, $device, $storecfg, $volid, $snapname);
5686             $drivehash->{$ds} = 1;
5687        });
5688     };
5689     my $err = $@;
5690
5691     if ($running) {
5692         eval { vm_mon_cmd($vmid, "savevm-end")  };
5693         warn $@ if $@;
5694
5695         if ($freezefs) {
5696             eval { vm_mon_cmd($vmid, "guest-fsfreeze-thaw"); };
5697             warn "guest-fsfreeze-thaw problems - $@" if $@;
5698         }
5699
5700         # savevm-end is async, we need to wait
5701         for (;;) {
5702             my $stat = vm_mon_cmd_nocheck($vmid, "query-savevm");
5703             if (!$stat->{bytes}) {
5704                 last;
5705             } else {
5706                 print "savevm not yet finished\n";
5707                 sleep(1);
5708                 next;
5709             }
5710         }
5711     }
5712
5713     if ($err) {
5714         warn "snapshot create failed: starting cleanup\n";
5715         eval { snapshot_delete($vmid, $snapname, 0, $drivehash); };
5716         warn $@ if $@;
5717         die $err;
5718     }
5719
5720     &$snapshot_commit($vmid, $snapname);
5721 }
5722
5723 # Note: $drivehash is only set when called from snapshot_create.
5724 sub snapshot_delete {
5725     my ($vmid, $snapname, $force, $drivehash) = @_;
5726
5727     my $prepare = 1;
5728
5729     my $snap;
5730     my $unused = [];
5731
5732     my $unlink_parent = sub {
5733         my ($confref, $new_parent) = @_;
5734
5735         if ($confref->{parent} && $confref->{parent} eq $snapname) {
5736             if ($new_parent) {
5737                 $confref->{parent} = $new_parent;
5738             } else {
5739                 delete $confref->{parent};
5740             }
5741         }
5742     };
5743
5744     my $updatefn =  sub {
5745         my ($remove_drive) = @_;
5746
5747         my $conf = load_config($vmid);
5748
5749         if (!$drivehash) {
5750             check_lock($conf);
5751             die "you can't delete a snapshot if vm is a template\n"
5752                 if is_template($conf);
5753         }
5754
5755         $snap = $conf->{snapshots}->{$snapname};
5756
5757         die "snapshot '$snapname' does not exist\n" if !defined($snap);
5758
5759         # remove parent refs
5760         if (!$prepare) {
5761             &$unlink_parent($conf, $snap->{parent});
5762             foreach my $sn (keys %{$conf->{snapshots}}) {
5763                 next if $sn eq $snapname;
5764                 &$unlink_parent($conf->{snapshots}->{$sn}, $snap->{parent});
5765             }
5766         }
5767
5768         if ($remove_drive) {
5769             if ($remove_drive eq 'vmstate') {
5770                 delete $snap->{$remove_drive};
5771             } else {
5772                 my $drive = parse_drive($remove_drive, $snap->{$remove_drive});
5773                 my $volid = $drive->{file};
5774                 delete $snap->{$remove_drive};
5775                 add_unused_volume($conf, $volid);
5776             }
5777         }
5778
5779         if ($prepare) {
5780             $snap->{snapstate} = 'delete';
5781         } else {
5782             delete $conf->{snapshots}->{$snapname};
5783             delete $conf->{lock} if $drivehash;
5784             foreach my $volid (@$unused) {
5785                 add_unused_volume($conf, $volid);
5786             }
5787         }
5788
5789         update_config_nolock($vmid, $conf, 1);
5790     };
5791
5792     lock_config($vmid, $updatefn);
5793
5794     # now remove vmstate file
5795
5796     my $storecfg = PVE::Storage::config();
5797
5798     if ($snap->{vmstate}) {
5799         eval {  PVE::Storage::vdisk_free($storecfg, $snap->{vmstate}); };
5800         if (my $err = $@) {
5801             die $err if !$force;
5802             warn $err;
5803         }
5804         # save changes (remove vmstate from snapshot)
5805         lock_config($vmid, $updatefn, 'vmstate') if !$force;
5806     };
5807
5808     # now remove all internal snapshots
5809     foreach_drive($snap, sub {
5810         my ($ds, $drive) = @_;
5811
5812         return if drive_is_cdrom($drive);
5813
5814         my $volid = $drive->{file};
5815         my $device = "drive-$ds";
5816
5817         if (!$drivehash || $drivehash->{$ds}) {
5818             eval { qemu_volume_snapshot_delete($vmid, $device, $storecfg, $volid, $snapname); };
5819             if (my $err = $@) {
5820                 die $err if !$force;
5821                 warn $err;
5822             }
5823         }
5824
5825         # save changes (remove drive fron snapshot)
5826         lock_config($vmid, $updatefn, $ds) if !$force;
5827         push @$unused, $volid;
5828     });
5829
5830     # now cleanup config
5831     $prepare = 0;
5832     lock_config($vmid, $updatefn);
5833 }
5834
5835 sub has_feature {
5836     my ($feature, $conf, $storecfg, $snapname, $running) = @_;
5837
5838     my $err;
5839     foreach_drive($conf, sub {
5840         my ($ds, $drive) = @_;
5841
5842         return if drive_is_cdrom($drive);
5843         my $volid = $drive->{file};
5844         $err = 1 if !PVE::Storage::volume_has_feature($storecfg, $feature, $volid, $snapname, $running);
5845     });
5846
5847     return $err ? 0 : 1;
5848 }
5849
5850 sub template_create {
5851     my ($vmid, $conf, $disk) = @_;
5852
5853     my $storecfg = PVE::Storage::config();
5854
5855     foreach_drive($conf, sub {
5856         my ($ds, $drive) = @_;
5857
5858         return if drive_is_cdrom($drive);
5859         return if $disk && $ds ne $disk;
5860
5861         my $volid = $drive->{file};
5862         return if !PVE::Storage::volume_has_feature($storecfg, 'template', $volid);
5863
5864         my $voliddst = PVE::Storage::vdisk_create_base($storecfg, $volid);
5865         $drive->{file} = $voliddst;
5866         $conf->{$ds} = print_drive($vmid, $drive);
5867         update_config_nolock($vmid, $conf, 1);
5868     });
5869 }
5870
5871 sub is_template {
5872     my ($conf) = @_;
5873
5874     return 1 if defined $conf->{template} && $conf->{template} == 1;
5875 }
5876
5877 sub qemu_img_convert {
5878     my ($src_volid, $dst_volid, $size, $snapname) = @_;
5879
5880     my $storecfg = PVE::Storage::config();
5881     my ($src_storeid, $src_volname) = PVE::Storage::parse_volume_id($src_volid, 1);
5882     my ($dst_storeid, $dst_volname) = PVE::Storage::parse_volume_id($dst_volid, 1);
5883
5884     if ($src_storeid && $dst_storeid) {
5885         my $src_scfg = PVE::Storage::storage_config($storecfg, $src_storeid);
5886         my $dst_scfg = PVE::Storage::storage_config($storecfg, $dst_storeid);
5887
5888         my $src_format = qemu_img_format($src_scfg, $src_volname);
5889         my $dst_format = qemu_img_format($dst_scfg, $dst_volname);
5890
5891         my $src_path = PVE::Storage::path($storecfg, $src_volid, $snapname);
5892         my $dst_path = PVE::Storage::path($storecfg, $dst_volid);
5893
5894         my $cmd = [];
5895         push @$cmd, '/usr/bin/qemu-img', 'convert', '-t', 'writeback', '-p', '-n';
5896         push @$cmd, '-s', $snapname if($snapname && $src_format eq "qcow2");
5897         push @$cmd, '-f', $src_format, '-O', $dst_format, $src_path, $dst_path;
5898
5899         my $parser = sub {
5900             my $line = shift;
5901             if($line =~ m/\((\S+)\/100\%\)/){
5902                 my $percent = $1;
5903                 my $transferred = int($size * $percent / 100);
5904                 my $remaining = $size - $transferred;
5905
5906                 print "transferred: $transferred bytes remaining: $remaining bytes total: $size bytes progression: $percent %\n";
5907             }
5908
5909         };
5910
5911         eval  { run_command($cmd, timeout => undef, outfunc => $parser); };
5912         my $err = $@;
5913         die "copy failed: $err" if $err;
5914     }
5915 }
5916
5917 sub qemu_img_format {
5918     my ($scfg, $volname) = @_;
5919
5920     if ($scfg->{path} && $volname =~ m/\.(raw|qcow2|qed|vmdk)$/) {
5921         return $1;
5922     } elsif ($scfg->{type} eq 'iscsi') {
5923         return "host_device";
5924     } else {
5925         return "raw";
5926     }
5927 }
5928
5929 sub qemu_drive_mirror {
5930     my ($vmid, $drive, $dst_volid, $vmiddst) = @_;
5931
5932     my $count = 0;
5933     my $old_len = 0;
5934     my $frozen = undef;
5935     my $maxwait = 120;
5936
5937     my $storecfg = PVE::Storage::config();
5938     my ($dst_storeid, $dst_volname) = PVE::Storage::parse_volume_id($dst_volid);
5939
5940     my $dst_scfg = PVE::Storage::storage_config($storecfg, $dst_storeid);
5941
5942     my $format;
5943     if ($dst_volname =~ m/\.(raw|qcow2)$/){
5944         $format = $1;
5945     }
5946
5947     my $dst_path = PVE::Storage::path($storecfg, $dst_volid);
5948
5949     my $opts = { timeout => 10, device => "drive-$drive", mode => "existing", sync => "full", target => $dst_path };
5950     $opts->{format} = $format if $format;
5951
5952     #fixme : sometime drive-mirror timeout, but works fine after.
5953     # (I have see the problem with big volume > 200GB), so we need to eval
5954     eval { vm_mon_cmd($vmid, "drive-mirror", %$opts); };
5955     # ignore errors here
5956
5957     eval {
5958         while (1) {
5959             my $stats = vm_mon_cmd($vmid, "query-block-jobs");
5960             my $stat = @$stats[0];
5961             die "mirroring job seem to have die. Maybe do you have bad sectors?" if !$stat;
5962             die "error job is not mirroring" if $stat->{type} ne "mirror";
5963
5964             my $busy = $stat->{busy};
5965
5966             if (my $total = $stat->{len}) {
5967                 my $transferred = $stat->{offset} || 0;
5968                 my $remaining = $total - $transferred;
5969                 my $percent = sprintf "%.2f", ($transferred * 100 / $total);
5970
5971                 print "transferred: $transferred bytes remaining: $remaining bytes total: $total bytes progression: $percent % busy: $busy\n";
5972             }
5973
5974             if ($stat->{len} == $stat->{offset}) {
5975                 if ($busy eq 'false') {
5976
5977                     last if $vmiddst != $vmid;
5978
5979                     # try to switch the disk if source and destination are on the same guest
5980                     eval { vm_mon_cmd($vmid, "block-job-complete", device => "drive-$drive") };
5981                     last if !$@;
5982                     die $@ if $@ !~ m/cannot be completed/;
5983                 }
5984
5985                 if ($count > $maxwait) {
5986                     # if too much writes to disk occurs at the end of migration
5987                     #the disk needs to be freezed to be able to complete the migration
5988                     vm_suspend($vmid,1);
5989                     $frozen = 1;
5990                 }
5991                 $count ++
5992             }
5993             $old_len = $stat->{offset};
5994             sleep 1;
5995         }
5996
5997         vm_resume($vmid, 1) if $frozen;
5998
5999     };
6000     my $err = $@;
6001
6002     my $cancel_job = sub {
6003         vm_mon_cmd($vmid, "block-job-cancel", device => "drive-$drive");
6004         while (1) {
6005             my $stats = vm_mon_cmd($vmid, "query-block-jobs");
6006             my $stat = @$stats[0];
6007             last if !$stat;
6008             sleep 1;
6009         }
6010     };
6011
6012     if ($err) {
6013         eval { &$cancel_job(); };
6014         die "mirroring error: $err";
6015     }
6016
6017     if ($vmiddst != $vmid) {
6018         # if we clone a disk for a new target vm, we don't switch the disk
6019         &$cancel_job(); # so we call block-job-cancel
6020     }
6021 }
6022
6023 sub clone_disk {
6024     my ($storecfg, $vmid, $running, $drivename, $drive, $snapname,
6025         $newvmid, $storage, $format, $full, $newvollist) = @_;
6026
6027     my $newvolid;
6028
6029     if (!$full) {
6030         print "create linked clone of drive $drivename ($drive->{file})\n";
6031         $newvolid = PVE::Storage::vdisk_clone($storecfg,  $drive->{file}, $newvmid, $snapname);
6032         push @$newvollist, $newvolid;
6033     } else {
6034         my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file});
6035         $storeid = $storage if $storage;
6036
6037         my ($defFormat, $validFormats) = PVE::Storage::storage_default_format($storecfg, $storeid);
6038         if (!$format) {
6039             $format = $drive->{format} || $defFormat;
6040         }
6041
6042         # test if requested format is supported - else use default
6043         my $supported = grep { $_ eq $format } @$validFormats;
6044         $format = $defFormat if !$supported;
6045
6046         my ($size) = PVE::Storage::volume_size_info($storecfg, $drive->{file}, 3);
6047
6048         print "create full clone of drive $drivename ($drive->{file})\n";
6049         $newvolid = PVE::Storage::vdisk_alloc($storecfg, $storeid, $newvmid, $format, undef, ($size/1024));
6050         push @$newvollist, $newvolid;
6051
6052         if (!$running || $snapname) {
6053             qemu_img_convert($drive->{file}, $newvolid, $size, $snapname);
6054         } else {
6055             qemu_drive_mirror($vmid, $drivename, $newvolid, $newvmid);
6056         }
6057     }
6058
6059     my ($size) = PVE::Storage::volume_size_info($storecfg, $newvolid, 3);
6060
6061     my $disk = $drive;
6062     $disk->{format} = undef;
6063     $disk->{file} = $newvolid;
6064     $disk->{size} = $size;
6065
6066     return $disk;
6067 }
6068
6069 # this only works if VM is running
6070 sub get_current_qemu_machine {
6071     my ($vmid) = @_;
6072
6073     my $cmd = { execute => 'query-machines', arguments => {} };
6074     my $res = vm_qmp_command($vmid, $cmd);
6075
6076     my ($current, $default);
6077     foreach my $e (@$res) {
6078         $default = $e->{name} if $e->{'is-default'};
6079         $current = $e->{name} if $e->{'is-current'};
6080     }
6081
6082     # fallback to the default machine if current is not supported by qemu
6083     return $current || $default || 'pc';
6084 }
6085
6086 sub lspci {
6087
6088     my $devices = {};
6089
6090     dir_glob_foreach("$pcisysfs/devices", '[a-f0-9]{4}:([a-f0-9]{2}:[a-f0-9]{2})\.([0-9])', sub {
6091             my (undef, $id, $function) = @_;
6092             my $res = { id => $id, function => $function};
6093             push @{$devices->{$id}}, $res;
6094     });
6095
6096     return $devices;
6097 }
6098
6099 1;