Re: [Xen-devel] Error restoring DomU when using GPLPV

[Wayne Gong <wayne.gong@xxxxxxxxxx>]

James Harper wrote:
> I added some more debugging...
>
> batch 1024 [1]
> Allocating 1024 mfns [2]
> 197600 allocated [3]
> batch 1024
> Allocating 33 mfns
> Failed allocation for dom 24: 33 extents of order 0 (err = 32) [4]
>
> [1] is just after 'j' is read in xc_domain_restore
> [2] is just before the call to populate_physmap
> [3] is just after the call to populate_physmap
> [4] is the error message in the memory_op function in libxc modified to
> give the value of err
>
> According to the a total of 197632 are being allocated and the last page
> cannot be (could be more pages required the next time around the loop
> too...)
I've also added some debugging in xc_domain_save.c and 
xc_domain_restore.c. Attach has those two files which I am using and 
xend.log. Those two files are modified based on Xen 3.4.0-xx.
What I've done is:
1, Create a Windows Server 2008 32bit with PV drivers which can support 
migration on Xen 3.1.x.
2, Save windows DomU then restore it. Error log is the same as the first 
mail of this thread.
3, Create a fresh install Windows 2008 32bit VM with almost the same 
vm.cfg file.
4, Save and restore windows DomU.

Here is some xend logs. I am not very sure if it's fine as I didn't know 
the whole process of save/restore in Xen. If you need any more 
information, please let me know.
   Line 100: [2009-08-26 01:34:24 2883] INFO (XendCheckpoint:418) 
shared_info_frame: 0x41ec
   Line 167: [2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) 
shared_info_frame: 0xffffffff
   Line 581: [2009-08-26 02:10:47 2883] INFO (XendCheckpoint:418) 
shared_info_frame: 0xfffff
   Line 649: [2009-08-26 02:11:01 2883] INFO (XendCheckpoint:418) 
shared_info_frame: 0xffffffff    <-- is this OK for a PVHVM when restoring.
  Line 169: [2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) 
Reloading memory pages:   0%
  Line 170: [2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) batch 1024
  Line 171: [2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) 
nr_mfns: 991      <----
  Line 651: [2009-08-26 02:11:01 2883] INFO (XendCheckpoint:418) 
Reloading memory pages:   0%
  Line 652: [2009-08-26 02:11:01 2883] INFO (XendCheckpoint:418) batch 1024
  Line 653: [2009-08-26 02:11:01 2883] INFO (XendCheckpoint:418) 
nr_mfns: 992      <---- nf_mfns of HVM is one more lager then PVHVM's
  Line 472: [2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) batch 1024
  Line 473: [2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) 
nr_mfns: 31   <---Restore a PVHVM will allocate 31 more nf_mfns then HVM.
thanks
wayne

[2009-08-26 01:25:40 2907] INFO (SrvDaemon:220) Xend exited with status 0.
[2009-08-26 01:27:29 2883] INFO (SrvDaemon:332) Xend Daemon started
[2009-08-26 01:27:29 2883] INFO (SrvDaemon:336) Xend changeset: unavailable.
[2009-08-26 01:27:29 2883] DEBUG (XendDomainInfo:141) 
XendDomainInfo.recreate({'max_vcpu_id': 1, 'cpu_time': 9322924443L, 'ssidref': 
0, 'hvm': 0, 'shutdown_reason': 0, 'dying': 0, 'online_vcpus': 2, 'domid': 0, 
'paused': 0, 'crashed': 0, 'running': 1, 'maxmem_kb': 4294967292L, 'shutdown': 
0, 'mem_kb': 555008L, 'handle': [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
0], 'blocked': 0, 'name': 'Domain-0'})
[2009-08-26 01:27:29 2883] INFO (XendDomainInfo:158) Recreating domain 0, UUID 
00000000-0000-0000-0000-000000000000. at /local/domain/0
[2009-08-26 01:27:29 2883] DEBUG (XendDomainInfo:3082) Storing VM details: 
{'on_xend_stop': 'ignore', 'shadow_memory': '0', 'uuid': 
'00000000-0000-0000-0000-000000000000', 'on_reboot': 'restart', 'image': 
'(linux (kernel ))', 'on_poweroff': 'destroy', 'bootloader_args': '', 
'on_xend_start': 'ignore', 'on_crash': 'restart', 'xend/restart_count': '0', 
'vcpus': '2', 'vcpu_avail': '3', 'bootloader': '', 'name': 'Domain-0'}
[2009-08-26 01:27:29 2883] DEBUG (XendDomainInfo:1638) Storing domain details: 
{'name': 'Domain-0', 'console/limit': '1048576', 'memory/target': '555008', 
'vm': '/vm/00000000-0000-0000-0000-000000000000', 'domid': '0', 
'cpu/0/availability': 'online', 'cpu/1/availability': 'online', 
'control/platform-feature-multiprocessor-suspend': '1', 'console/type': 
'xenconsoled'}
[2009-08-26 01:27:29 2883] DEBUG (XendDomain:452) Adding Domain: 0
[2009-08-26 01:27:29 2883] DEBUG (XendDomain:386) number of vcpus to use is 0
[2009-08-26 01:27:30 2883] INFO (SrvServer:177) unix 
path=/var/lib/xend/xend-socket
[2009-08-26 01:27:30 2883] WARNING (XendAPI:695) API call: VBD.set_device not 
found
[2009-08-26 01:27:30 2883] WARNING (XendAPI:695) API call: VBD.set_type not 
found
[2009-08-26 01:27:30 2883] WARNING (XendAPI:695) API call: 
session.get_all_records not found
[2009-08-26 01:27:30 2883] WARNING (XendAPI:695) API call: event.get_record not 
found
[2009-08-26 01:27:30 2883] WARNING (XendAPI:695) API call: event.get_all not 
found
[2009-08-26 01:27:30 2883] DEBUG (XendDomainInfo:1725) 
XendDomainInfo.handleShutdownWatch
[2009-08-26 01:27:30 2883] WARNING (XendAPI:695) API call: VIF.get_network not 
found
[2009-08-26 01:27:30 2883] WARNING (XendAPI:695) API call: VIF.set_device not 
found
[2009-08-26 01:27:30 2883] WARNING (XendAPI:695) API call: VIF.set_MAC not found
[2009-08-26 01:27:30 2883] WARNING (XendAPI:695) API call: VIF.set_MTU not found
[2009-08-26 01:27:30 2883] WARNING (XendAPI:695) API call: debug.get_all not 
found
[2009-08-26 01:27:30 2883] INFO (XMLRPCServer:156) Opening Unix domain socket 
XML-RPC server on /var/run/xend/xen-api.sock; authentication has been disabled 
for this server.
[2009-08-26 01:27:30 2883] INFO (XMLRPCServer:156) Opening Unix domain socket 
XML-RPC server on /var/run/xend/xmlrpc.sock.
[2009-08-26 01:32:48 2883] DEBUG (XendDomainInfo:93) 
XendDomainInfo.create(['vm', ['name', 'srv2008_free'], ['memory', '600'], 
['on_reboot', 'restart'], ['on_crash', 'restart'], ['vcpus', 1], 
['on_xend_start', 'ignore'], ['on_xend_stop', 'ignore'], ['bootloader', 
'/usr/bin/pygrub'], ['bootloader_args', '-q'], ['image', ['hvm', ['kernel', 
'/usr/lib/xen/boot/hvmloader'], ['videoram', 4], ['device_model', 
'/usr/lib/xen/bin/qemu-dm'], ['pae', 1], ['vcpus', 1], ['boot', 'c'], ['fda', 
''], ['fdb', ''], ['timer_mode', 1], ['localtime', 0], ['serial', 'pty'], 
['stdvga', 0], ['isa', 0], ['nographic', 0], ['soundhw', ''], ['vnc', 1], 
['vncunused', 1], ['vncconsole', 1], ['vnclisten', '0.0.0.0'], ['xauthority', 
'/root/.Xauthority'], ['rtc_timeoffset', 0], ['monitor', 0], ['acpi', 1], 
['apic', 1], ['usb', 0], ['usbdevice', 'tablet'], ['keymap', ''], ['pci', []], 
['hpet', 0], ['guest_os_type', 'default'], ['hap', 1], ['cpuid', []], 
['cpuid_check', []], ['viridian', 0], ['pci_msitranslate', 1], ['vpt_align', 
1], ['pci_power_mgmt', 0], ['xen_platform_pci', 1], ['vncpasswd', 
'XXXXXXXX']]], ['s3_integrity', 1], ['device', ['vbd', ['uname', 
'file:/mnt/data/mgi/srv2008/System.img'], ['dev', 'hda'], ['mode', 'w!']]], 
['device', ['vif', ['bridge', 'xenbr0'], ['mac', '00:16:3E:55:D1:AA']]]])
[2009-08-26 01:32:48 2883] DEBUG (XendDomainInfo:2317) 
XendDomainInfo.constructDomain
[2009-08-26 01:32:48 2883] DEBUG (balloon:181) Balloon: 1472776 KiB free; need 
4096; done.
[2009-08-26 01:32:48 2883] DEBUG (XendDomain:452) Adding Domain: 1
[2009-08-26 01:32:48 2883] DEBUG (XendDomainInfo:2518) 
XendDomainInfo.initDomain: 1 256
[2009-08-26 01:32:48 2883] DEBUG (image:319) No VNC passwd configured for vfb 
access
[2009-08-26 01:32:48 2883] DEBUG (image:806) args: boot, val: c
[2009-08-26 01:32:48 2883] DEBUG (image:806) args: fda, val: None
[2009-08-26 01:32:48 2883] DEBUG (image:806) args: fdb, val: None
[2009-08-26 01:32:48 2883] DEBUG (image:806) args: soundhw, val: None
[2009-08-26 01:32:48 2883] DEBUG (image:806) args: localtime, val: 0
[2009-08-26 01:32:48 2883] DEBUG (image:806) args: serial, val: ['pty']
[2009-08-26 01:32:48 2883] DEBUG (image:806) args: std-vga, val: 0
[2009-08-26 01:32:48 2883] DEBUG (image:806) args: isa, val: 0
[2009-08-26 01:32:48 2883] DEBUG (image:806) args: acpi, val: 1
[2009-08-26 01:32:48 2883] DEBUG (image:806) args: usb, val: 0
[2009-08-26 01:32:48 2883] DEBUG (image:806) args: usbdevice, val: tablet
[2009-08-26 01:32:48 2883] INFO (image:742) Need to create platform 
device.[domid:1]
[2009-08-26 01:32:48 2883] DEBUG (XendDomainInfo:2542) 
_initDomain:shadow_memory=0x0, memory_static_max=0x25800000, 
memory_static_min=0x0.
[2009-08-26 01:32:48 2883] DEBUG (balloon:181) Balloon: 1471364 KiB free; need 
627712; done.
[2009-08-26 01:32:48 2883] INFO (image:170) buildDomain os=hvm dom=1 vcpus=1
[2009-08-26 01:32:48 2883] DEBUG (image:859) domid          = 1
[2009-08-26 01:32:48 2883] DEBUG (image:860) image          = 
/usr/lib/xen/boot/hvmloader
[2009-08-26 01:32:48 2883] DEBUG (image:861) store_evtchn   = 2
[2009-08-26 01:32:48 2883] DEBUG (image:862) memsize        = 600
[2009-08-26 01:32:48 2883] DEBUG (image:863) target         = 600
[2009-08-26 01:32:48 2883] DEBUG (image:864) vcpus          = 1
[2009-08-26 01:32:48 2883] DEBUG (image:865) acpi           = 1
[2009-08-26 01:32:48 2883] DEBUG (image:866) apic           = 1
[2009-08-26 01:32:48 2883] INFO (XendDomainInfo:2178) createDevice: vfb : 
{'vncunused': 1, 'vnclisten': '0.0.0.0', 'vnc': '1', 'uuid': 
'5fc79804-6d30-4b3a-7dee-b6f6f07774e3', 'other_config': {'vncunused': 1, 
'vnclisten': '0.0.0.0', 'vnc': '1'}}
[2009-08-26 01:32:48 2883] DEBUG (DevController:95) DevController: writing 
{'state': '1', 'backend-id': '0', 'backend': '/local/domain/0/backend/vfb/1/0'} 
to /local/domain/1/device/vfb/0.
[2009-08-26 01:32:48 2883] DEBUG (DevController:97) DevController: writing 
{'vncunused': '1', 'domain': 'srv2008_free', 'frontend': 
'/local/domain/1/device/vfb/0', 'uuid': '5fc79804-6d30-4b3a-7dee-b6f6f07774e3', 
'frontend-id': '1', 'vnclisten': '0.0.0.0', 'state': '1', 'online': '1', 'vnc': 
'1'} to /local/domain/0/backend/vfb/1/0.
[2009-08-26 01:32:48 2883] INFO (XendDomainInfo:2178) createDevice: vbd : 
{'uuid': '0d11ea8b-358f-0bdb-5aa3-193cb944dd25', 'bootable': 1, 'driver': 
'paravirtualised', 'dev': 'hda', 'uname': 
'file:/mnt/data/mgi/srv2008/System.img', 'mode': 'w!'}
[2009-08-26 01:32:48 2883] DEBUG (DevController:95) DevController: writing 
{'backend-id': '0', 'virtual-device': '768', 'device-type': 'disk', 'state': 
'1', 'backend': '/local/domain/0/backend/vbd/1/768'} to 
/local/domain/1/device/vbd/768.
[2009-08-26 01:32:48 2883] DEBUG (DevController:97) DevController: writing 
{'domain': 'srv2008_free', 'frontend': '/local/domain/1/device/vbd/768', 
'uuid': '0d11ea8b-358f-0bdb-5aa3-193cb944dd25', 'bootable': '1', 'dev': 'hda', 
'state': '1', 'params': '/mnt/data/mgi/srv2008/System.img', 'mode': 'w!', 
'online': '1', 'frontend-id': '1', 'type': 'file'} to 
/local/domain/0/backend/vbd/1/768.
[2009-08-26 01:32:48 2883] INFO (XendDomainInfo:2178) createDevice: vif : 
{'bridge': 'xenbr0', 'mac': '00:16:3E:55:D1:AA', 'uuid': 
'dd13ff5c-2ac3-bbaa-2019-b0201a133f6a'}
[2009-08-26 01:32:48 2883] DEBUG (DevController:95) DevController: writing 
{'backend-id': '0', 'mac': '00:16:3E:55:D1:AA', 'handle': '0', 'state': '1', 
'backend': '/local/domain/0/backend/vif/1/0'} to /local/domain/1/device/vif/0.
[2009-08-26 01:32:48 2883] DEBUG (DevController:97) DevController: writing 
{'bridge': 'xenbr0', 'domain': 'srv2008_free', 'handle': '0', 'uuid': 
'dd13ff5c-2ac3-bbaa-2019-b0201a133f6a', 'script': 
'/etc/xen/scripts/vif-bridge', 'mac': '00:16:3E:55:D1:AA', 'frontend-id': '1', 
'state': '1', 'online': '1', 'frontend': '/local/domain/1/device/vif/0'} to 
/local/domain/0/backend/vif/1/0.
[2009-08-26 01:32:48 2883] INFO (image:391) spawning device models: 
/usr/lib/xen/bin/qemu-dm ['/usr/lib/xen/bin/qemu-dm', '-d', '1', 
'-domain-name', 'srv2008_free', '-videoram', '4', '-vnc', '0.0.0.0:0', 
'-vncunused', '-vcpus', '1', '-boot', 'c', '-serial', 'pty', '-acpi', 
'-usbdevice', 'tablet', '-net', 
'nic,vlan=1,macaddr=00:16:3E:55:D1:AA,model=rtl8139', '-net', 
'tap,vlan=1,ifname=tap1.0,bridge=xenbr0', '-M', 'xenfv']
[2009-08-26 01:32:48 2883] INFO (image:440) device model pid: 3321
[2009-08-26 01:32:48 2883] INFO (image:528) waiting for sentinel_fifo
[2009-08-26 01:32:48 2883] DEBUG (XendDomainInfo:3082) Storing VM details: 
{'on_xend_stop': 'ignore', 'shadow_memory': '6', 'uuid': 
'166f15a6-6e1d-4d5c-5517-4064fd810951', 'on_reboot': 'restart', 'start_time': 
'1251221568.66', 'on_poweroff': 'destroy', 'bootloader_args': '-q', 
'on_xend_start': 'ignore', 'on_crash': 'restart', 'xend/restart_count': '0', 
'vcpus': '1', 'vcpu_avail': '1', 'bootloader': '/usr/bin/pygrub', 'image': 
'(hvm (kernel ) (videoram 4) (hpet 0) (stdvga 0) (vnclisten 0.0.0.0) (loader 
/usr/lib/xen/boot/hvmloader) (vncconsole 1) (serial pty) (vncunused 1) 
(xen_platform_pci 1) (boot c) (rtc_timeoffset 0) (pci ()) (pae 1) (vpt_align 1) 
(hap 1) (viridian 0) (acpi 1) (localtime 0) (timer_mode 1) (vnc 1) (nographic 
0) (guest_os_type default) (pci_msitranslate 1) (apic 1) (monitor 0) (usbdevice 
tablet) (device_model /usr/lib/xen/bin/qemu-dm) (pci_power_mgmt 0) (usb 0) 
(xauthority /root/.Xauthority) (isa 0) (notes (SUSPEND_CANCEL 1)))', 'name': 
'srv2008_free'}
[2009-08-26 01:32:48 2883] DEBUG (XendDomainInfo:1638) Storing domain details: 
{'console/port': '3', 'name': 'srv2008_free', 'console/limit': '1048576', 
'store/port': '2', 'vm': '/vm/166f15a6-6e1d-4d5c-5517-4064fd810951', 'domid': 
'1', 'image/suspend-cancel': '1', 'cpu/0/availability': 'online', 
'memory/target': '614400', 'control/platform-feature-multiprocessor-suspend': 
'1', 'store/ring-ref': '1044476', 'console/type': 'ioemu'}
[2009-08-26 01:32:48 2883] DEBUG (DevController:95) DevController: writing 
{'state': '1', 'backend-id': '0', 'backend': 
'/local/domain/0/backend/console/1/0'} to /local/domain/1/device/console/0.
[2009-08-26 01:32:48 2883] DEBUG (DevController:97) DevController: writing 
{'domain': 'srv2008_free', 'frontend': '/local/domain/1/device/console/0', 
'uuid': 'f5a40d7b-8bc1-48bd-d4f2-6c7c2bb9e723', 'frontend-id': '1', 'state': 
'1', 'location': '3', 'online': '1', 'protocol': 'vt100'} to 
/local/domain/0/backend/console/1/0.
[2009-08-26 01:32:48 2883] DEBUG (XendDomainInfo:1725) 
XendDomainInfo.handleShutdownWatch
[2009-08-26 01:32:48 2883] DEBUG (DevController:139) Waiting for devices vif.
[2009-08-26 01:32:48 2883] DEBUG (DevController:144) Waiting for 0.
[2009-08-26 01:32:48 2883] DEBUG (DevController:629) hotplugStatusCallback 
/local/domain/0/backend/vif/1/0/hotplug-status.
[2009-08-26 01:32:49 2883] DEBUG (DevController:629) hotplugStatusCallback 
/local/domain/0/backend/vif/1/0/hotplug-status.
[2009-08-26 01:32:49 2883] DEBUG (DevController:643) hotplugStatusCallback 1.
[2009-08-26 01:32:49 2883] DEBUG (DevController:139) Waiting for devices vscsi.
[2009-08-26 01:32:49 2883] DEBUG (DevController:139) Waiting for devices vbd.
[2009-08-26 01:32:49 2883] DEBUG (DevController:144) Waiting for 768.
[2009-08-26 01:32:49 2883] DEBUG (DevController:629) hotplugStatusCallback 
/local/domain/0/backend/vbd/1/768/hotplug-status.
[2009-08-26 01:32:49 2883] DEBUG (DevController:629) hotplugStatusCallback 
/local/domain/0/backend/vbd/1/768/hotplug-status.
[2009-08-26 01:32:49 2883] DEBUG (DevController:643) hotplugStatusCallback 1.
[2009-08-26 01:32:49 2883] DEBUG (DevController:139) Waiting for devices irq.
[2009-08-26 01:32:49 2883] DEBUG (DevController:139) Waiting for devices vkbd.
[2009-08-26 01:32:49 2883] DEBUG (DevController:139) Waiting for devices vfb.
[2009-08-26 01:32:49 2883] DEBUG (DevController:139) Waiting for devices 
console.
[2009-08-26 01:32:49 2883] DEBUG (DevController:144) Waiting for 0.
[2009-08-26 01:32:49 2883] DEBUG (DevController:139) Waiting for devices pci.
[2009-08-26 01:32:49 2883] DEBUG (DevController:139) Waiting for devices 
ioports.
[2009-08-26 01:32:49 2883] DEBUG (DevController:139) Waiting for devices tap.
[2009-08-26 01:32:49 2883] DEBUG (DevController:139) Waiting for devices vtpm.
[2009-08-26 01:32:49 2883] INFO (XendDomain:1180) Domain srv2008_free (1) 
unpaused.
[2009-08-26 01:34:24 2883] DEBUG (XendCheckpoint:110) [xc_save]: 
/usr/lib/xen/bin/xc_save 31 1 0 0 4
[2009-08-26 01:34:24 2883] DEBUG (XendCheckpoint:389) suspend
[2009-08-26 01:34:24 2883] DEBUG (XendCheckpoint:113) In saveInputHandler 
suspend
[2009-08-26 01:34:24 2883] INFO (XendCheckpoint:418) xc_save: failed to get the 
suspend evtchn port
[2009-08-26 01:34:24 2883] DEBUG (XendCheckpoint:115) Suspending 1 ...
[2009-08-26 01:34:24 2883] INFO (XendCheckpoint:418) 
[2009-08-26 01:34:24 2883] INFO (XendCheckpoint:418) -->xc_domain_save()
[2009-08-26 01:34:24 2883] INFO (XendCheckpoint:418) platform info, max_mfn: 
7d4b0, hvirt_start ffc00000, pt_lvevel 4, guest_width 8
[2009-08-26 01:34:24 2883] DEBUG (XendDomainInfo:518) 
XendDomainInfo.shutdown(suspend)
[2009-08-26 01:34:24 2883] INFO (XendCheckpoint:418) shared_info_frame: 0x41ec
[2009-08-26 01:34:24 2883] DEBUG (XendDomainInfo:1725) 
XendDomainInfo.handleShutdownWatch
[2009-08-26 01:34:24 2883] INFO (XendDomainInfo:1913) Domain has shutdown: 
name=migrating-srv2008_free id=1 reason=suspend.
[2009-08-26 01:34:24 2883] INFO (XendCheckpoint:121) Domain 1 suspended.
[2009-08-26 01:34:24 2883] INFO (image:476) signalDeviceModel:restore dm state 
to running
[2009-08-26 01:34:24 2883] DEBUG (XendCheckpoint:130) Written done
[2009-08-26 01:34:24 2883] INFO (XendCheckpoint:418) p2m_size: 0x100000Need 
another buffer for HVM context
[2009-08-26 01:34:24 2883] INFO (XendCheckpoint:418) Setup the mfn_to_pfn table 
mapping
[2009-08-26 01:34:24 2883] INFO (XendCheckpoint:418) Start writing out the 
saved-domain record.
[2009-08-26 01:34:31 2883] INFO (XendCheckpoint:418) Saving memory pages: iter 
1   0%  5% 10% 15% 20% 25% 30% 35% 40% 
45% 50% 55% 60% 65% 70% 75% 80% 85% 90% 
95%
 1: sent 157696, skipped 0, delta 6910ms, dom0 57%, target 0%, sent 747Mb/s, 
dirtied 0Mb/s 0 pages
[2009-08-26 01:34:31 2883] INFO (XendCheckpoint:418) Total pages sent= 157696 
(0.15x)
[2009-08-26 01:34:31 2883] INFO (XendCheckpoint:418) (of which 0 were fixups)
[2009-08-26 01:34:31 2883] INFO (XendCheckpoint:418) All memory is saved
[2009-08-26 01:34:33 2883] INFO (XendCheckpoint:418) Save exit rc=0
[2009-08-26 01:34:33 2883] DEBUG (XendDomainInfo:2750) XendDomainInfo.destroy: 
domid=1
[2009-08-26 01:34:33 2883] DEBUG (XendDomainInfo:2220) Destroying device model
[2009-08-26 01:34:33 2883] INFO (image:553) migrating-srv2008_free device model 
terminated
[2009-08-26 01:34:33 2883] DEBUG (XendDomainInfo:2227) Releasing devices
[2009-08-26 01:34:33 2883] DEBUG (XendDomainInfo:2240) Removing vif/0
[2009-08-26 01:34:33 2883] DEBUG (XendDomainInfo:1142) 
XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0
[2009-08-26 01:34:33 2883] DEBUG (XendDomainInfo:2240) Removing vbd/768
[2009-08-26 01:34:33 2883] DEBUG (XendDomainInfo:1142) 
XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/768
[2009-08-26 01:34:33 2883] DEBUG (XendDomainInfo:2240) Removing vfb/0
[2009-08-26 01:34:33 2883] DEBUG (XendDomainInfo:1142) 
XendDomainInfo.destroyDevice: deviceClass = vfb, device = vfb/0
[2009-08-26 01:34:33 2883] DEBUG (XendDomainInfo:2240) Removing console/0
[2009-08-26 01:34:33 2883] DEBUG (XendDomainInfo:1142) 
XendDomainInfo.destroyDevice: deviceClass = console, device = console/0
[2009-08-26 01:34:38 2883] DEBUG (XendDomainInfo:227) 
XendDomainInfo.restore(['domain', ['domid', '1'], ['on_crash', 'restart'], 
['uuid', '166f15a6-6e1d-4d5c-5517-4064fd810951'], ['bootloader_args', '-q'], 
['vcpus', '1'], ['name', 'srv2008_free'], ['on_poweroff', 'destroy'], 
['on_reboot', 'restart'], ['cpus', [[]]], ['bootloader', '/usr/bin/pygrub'], 
['maxmem', '600'], ['memory', '600'], ['shadow_memory', '6'], ['vcpu_avail', 
'1'], ['features'], ['on_xend_start', 'ignore'], ['on_xend_stop', 'ignore'], 
['start_time', '1251221568.66'], ['cpu_time', '0.008097537'], ['online_vcpus', 
'1'], ['image', ['hvm', ['kernel'], ['videoram', '4'], ['hpet', '0'], 
['stdvga', '0'], ['vnclisten', '0.0.0.0'], ['loader', 
'/usr/lib/xen/boot/hvmloader'], ['vncconsole', '1'], ['serial', 'pty'], 
['vncunused', '1'], ['xen_platform_pci', '1'], ['boot', 'c'], 
['rtc_timeoffset', '0'], ['pci', []], ['pae', '1'], ['vpt_align', '1'], ['hap', 
'1'], ['viridian', '0'], ['acpi', '1'], ['localtime', '0'], ['timer_mode', 
'1'], ['vnc', '1'], ['nographic', '0'], ['guest_os_type', 'default'], 
['pci_msitranslate', '1'], ['apic', '1'], ['monitor', '0'], ['usbdevice', 
'tablet'], ['device_model', '/usr/lib/xen/bin/qemu-dm'], ['pci_power_mgmt', 
'0'], ['usb', '0'], ['xauthority', '/root/.Xauthority'], ['isa', '0'], 
['notes', ['SUSPEND_CANCEL', '1']]]], ['status', '2'], ['state', '------'], 
['store_mfn', '1044476'], ['device', ['vif', ['bridge', 'xenbr0'], ['mac', 
'00:16:3E:55:D1:AA'], ['script', '/etc/xen/scripts/vif-bridge'], ['uuid', 
'dd13ff5c-2ac3-bbaa-2019-b0201a133f6a'], ['backend', '0']]], ['device', ['vbd', 
['uuid', '0d11ea8b-358f-0bdb-5aa3-193cb944dd25'], ['bootable', '1'], ['dev', 
'hda:disk'], ['uname', 'file:/mnt/data/mgi/srv2008/System.img'], ['mode', 
'w!'], ['backend', '0'], ['bootable', '1'], ['VDI']]], ['device', ['vfb', 
['vncunused', '1'], ['vnclisten', '0.0.0.0'], ['vnc', '1'], ['uuid', 
'5fc79804-6d30-4b3a-7dee-b6f6f07774e3'], ['location', '0.0.0.0:5900']]], 
['device', ['console', ['protocol', 'vt100'], ['location', '3'], ['uuid', 
'f5a40d7b-8bc1-48bd-d4f2-6c7c2bb9e723']]]])
[2009-08-26 01:34:38 2883] DEBUG (XendDomainInfo:2317) 
XendDomainInfo.constructDomain
[2009-08-26 01:34:38 2883] DEBUG (balloon:181) Balloon: 1472776 KiB free; need 
4096; done.
[2009-08-26 01:34:38 2883] DEBUG (XendDomain:452) Adding Domain: 2
[2009-08-26 01:34:38 2883] DEBUG (XendDomainInfo:3082) Storing VM details: 
{'on_xend_stop': 'ignore', 'shadow_memory': '6', 'uuid': 
'166f15a6-6e1d-4d5c-5517-4064fd810951', 'on_reboot': 'restart', 'start_time': 
'1251221568.66', 'on_poweroff': 'destroy', 'bootloader_args': '-q', 
'on_xend_start': 'ignore', 'on_crash': 'restart', 'xend/restart_count': '0', 
'vcpus': '1', 'vcpu_avail': '1', 'bootloader': '/usr/bin/pygrub', 'image': 
'(hvm (kernel ) (videoram 4) (hpet 0) (stdvga 0) (vnclisten 0.0.0.0) (loader 
/usr/lib/xen/boot/hvmloader) (vncconsole 1) (serial pty) (vncunused 1) 
(xen_platform_pci 1) (boot c) (rtc_timeoffset 0) (pci ()) (pae 1) (vpt_align 1) 
(hap 1) (viridian 0) (acpi 1) (localtime 0) (timer_mode 1) (vnc 1) (nographic 
0) (guest_os_type default) (pci_msitranslate 1) (apic 1) (monitor 0) (usbdevice 
tablet) (device_model /usr/lib/xen/bin/qemu-dm) (pci_power_mgmt 0) (usb 0) 
(xauthority /root/.Xauthority) (isa 0) (notes (SUSPEND_CANCEL 1)))', 'name': 
'srv2008_free'}
[2009-08-26 01:34:38 2883] INFO (XendDomainInfo:2178) createDevice: vfb : 
{'vncunused': '1', 'other_config': {'vncunused': '1', 'vnclisten': '0.0.0.0', 
'vnc': '1'}, 'vnc': '1', 'uuid': '5fc79804-6d30-4b3a-7dee-b6f6f07774e3', 
'vnclisten': '0.0.0.0', 'location': '0.0.0.0:5900'}
[2009-08-26 01:34:38 2883] DEBUG (DevController:95) DevController: writing 
{'state': '1', 'backend-id': '0', 'backend': '/local/domain/0/backend/vfb/2/0'} 
to /local/domain/2/device/vfb/0.
[2009-08-26 01:34:38 2883] DEBUG (DevController:97) DevController: writing 
{'vncunused': '1', 'domain': 'srv2008_free', 'frontend': 
'/local/domain/2/device/vfb/0', 'uuid': '5fc79804-6d30-4b3a-7dee-b6f6f07774e3', 
'frontend-id': '2', 'vnclisten': '0.0.0.0', 'state': '1', 'location': 
'0.0.0.0:5900', 'online': '1', 'vnc': '1'} to /local/domain/0/backend/vfb/2/0.
[2009-08-26 01:34:38 2883] INFO (XendDomainInfo:2178) createDevice: console : 
{'protocol': 'vt100', 'location': '3', 'uuid': 
'f5a40d7b-8bc1-48bd-d4f2-6c7c2bb9e723'}
[2009-08-26 01:34:38 2883] DEBUG (DevController:95) DevController: writing 
{'state': '1', 'backend-id': '0', 'backend': 
'/local/domain/0/backend/console/2/0'} to /local/domain/2/device/console/0.
[2009-08-26 01:34:38 2883] DEBUG (DevController:97) DevController: writing 
{'domain': 'srv2008_free', 'frontend': '/local/domain/2/device/console/0', 
'uuid': 'f5a40d7b-8bc1-48bd-d4f2-6c7c2bb9e723', 'frontend-id': '2', 'state': 
'1', 'location': '3', 'online': '1', 'protocol': 'vt100'} to 
/local/domain/0/backend/console/2/0.
[2009-08-26 01:34:38 2883] INFO (XendDomainInfo:2178) createDevice: vbd : 
{'uuid': '0d11ea8b-358f-0bdb-5aa3-193cb944dd25', 'bootable': '1', 'driver': 
'paravirtualised', 'dev': 'hda:disk', 'uname': 
'file:/mnt/data/mgi/srv2008/System.img', 'mode': 'w!', 'backend': '0'}
[2009-08-26 01:34:38 2883] DEBUG (DevController:95) DevController: writing 
{'backend-id': '0', 'virtual-device': '768', 'device-type': 'disk', 'state': 
'1', 'backend': '/local/domain/0/backend/vbd/2/768'} to 
/local/domain/2/device/vbd/768.
[2009-08-26 01:34:38 2883] DEBUG (DevController:97) DevController: writing 
{'domain': 'srv2008_free', 'frontend': '/local/domain/2/device/vbd/768', 
'uuid': '0d11ea8b-358f-0bdb-5aa3-193cb944dd25', 'bootable': '1', 'dev': 'hda', 
'state': '1', 'params': '/mnt/data/mgi/srv2008/System.img', 'mode': 'w!', 
'online': '1', 'frontend-id': '2', 'type': 'file'} to 
/local/domain/0/backend/vbd/2/768.
[2009-08-26 01:34:38 2883] INFO (XendDomainInfo:2178) createDevice: vif : 
{'bridge': 'xenbr0', 'mac': '00:16:3E:55:D1:AA', 'script': 
'/etc/xen/scripts/vif-bridge', 'uuid': 'dd13ff5c-2ac3-bbaa-2019-b0201a133f6a', 
'backend': '0'}
[2009-08-26 01:34:38 2883] DEBUG (DevController:95) DevController: writing 
{'backend-id': '0', 'mac': '00:16:3E:55:D1:AA', 'handle': '0', 'state': '1', 
'backend': '/local/domain/0/backend/vif/2/0'} to /local/domain/2/device/vif/0.
[2009-08-26 01:34:38 2883] DEBUG (DevController:97) DevController: writing 
{'bridge': 'xenbr0', 'domain': 'srv2008_free', 'handle': '0', 'uuid': 
'dd13ff5c-2ac3-bbaa-2019-b0201a133f6a', 'script': 
'/etc/xen/scripts/vif-bridge', 'mac': '00:16:3E:55:D1:AA', 'frontend-id': '2', 
'state': '1', 'online': '1', 'frontend': '/local/domain/2/device/vif/0'} to 
/local/domain/0/backend/vif/2/0.
[2009-08-26 01:34:38 2883] DEBUG (XendDomainInfo:1638) Storing domain details: 
{'console/port': '3', 'name': 'srv2008_free', 'console/limit': '1048576', 
'image/suspend-cancel': '1', 'domid': '2', 'vm': 
'/vm/166f15a6-6e1d-4d5c-5517-4064fd810951', 'cpu/0/availability': 'online', 
'memory/target': '614400', 'control/platform-feature-multiprocessor-suspend': 
'1', 'console/type': 'ioemu', 'store/port': '2'}
[2009-08-26 01:34:38 2883] INFO (XendCheckpoint:243) restore hvm domain 2, 
apic=1, pae=1
[2009-08-26 01:34:38 2883] DEBUG (image:319) No VNC passwd configured for vfb 
access
[2009-08-26 01:34:38 2883] DEBUG (image:806) args: boot, val: c
[2009-08-26 01:34:38 2883] DEBUG (image:806) args: fda, val: None
[2009-08-26 01:34:38 2883] DEBUG (image:806) args: fdb, val: None
[2009-08-26 01:34:38 2883] DEBUG (image:806) args: soundhw, val: None
[2009-08-26 01:34:38 2883] DEBUG (image:806) args: localtime, val: 0
[2009-08-26 01:34:38 2883] DEBUG (image:806) args: serial, val: ['pty']
[2009-08-26 01:34:38 2883] DEBUG (image:806) args: std-vga, val: 0
[2009-08-26 01:34:38 2883] DEBUG (image:806) args: isa, val: 0
[2009-08-26 01:34:38 2883] DEBUG (image:806) args: acpi, val: 1
[2009-08-26 01:34:38 2883] DEBUG (image:806) args: usb, val: 0
[2009-08-26 01:34:38 2883] DEBUG (image:806) args: usbdevice, val: tablet
[2009-08-26 01:34:38 2883] INFO (image:742) Need to create platform 
device.[domid:2]
[2009-08-26 01:34:38 2883] DEBUG (XendCheckpoint:261) restore:shadow=0x6, 
_static_max=0x25800000, _static_min=0x0, 
[2009-08-26 01:34:38 2883] DEBUG (balloon:181) Balloon: 1471364 KiB free; need 
624640; done.
[2009-08-26 01:34:38 2883] DEBUG (XendCheckpoint:278) [xc_restore]: 
/usr/lib/xen/bin/xc_restore 31 2 2 3 1 1 1
[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) -->xc_domain_restore()
[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) xc_domain_restore start: 
p2m_size = 100000
[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) platform info, max_mfn: 
7d4b0, hvirt_start ffc00000, pt_lvevel 4, guest_width 8
[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) memory alloc success
[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) lock regin_mfn and 
p2m_batch success
[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) shared_info_frame: 
0xffffffff
[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) all PFNs are marked as 
invalid
[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) Reloading memory pages:   
0%
[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) nr_mfns: 991
[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
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[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
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[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
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[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
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[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
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[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
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[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) nr_mfns: 1023
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[2009-08-26 01:34:39 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
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[2009-08-26 01:34:40 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
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[2009-08-26 01:34:40 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
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[2009-08-26 01:34:41 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
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[2009-08-26 01:34:41 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
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[2009-08-26 01:34:42 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:42 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:42 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:42 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:42 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:42 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:42 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:42 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:42 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:42 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:42 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:42 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:42 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:42 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:43 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:44 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:45 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) nr_mfns: 31
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) nr_mfns: 7
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) Failed allocation for dom 
2: 7 extents of order 0
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) ERROR Internal error: 
Failed to allocate memory for batch.!
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) 
[2009-08-26 01:34:46 2883] INFO (XendCheckpoint:418) Restore exit with rc=1
[2009-08-26 01:34:46 2883] DEBUG (XendDomainInfo:2750) XendDomainInfo.destroy: 
domid=2
[2009-08-26 01:34:46 2883] ERROR (XendDomainInfo:2764) XendDomainInfo.destroy: 
domain destruction failed.
Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 
2757, in destroy
    xc.domain_pause(self.domid)
Error: (3, 'No such process')
[2009-08-26 01:34:46 2883] DEBUG (XendDomainInfo:2225) No device model
[2009-08-26 01:34:46 2883] DEBUG (XendDomainInfo:2227) Releasing devices
[2009-08-26 01:34:46 2883] DEBUG (XendDomainInfo:2240) Removing vif/0
[2009-08-26 01:34:46 2883] DEBUG (XendDomainInfo:1142) 
XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0
[2009-08-26 01:34:46 2883] DEBUG (XendDomainInfo:2240) Removing vbd/768
[2009-08-26 01:34:46 2883] DEBUG (XendDomainInfo:1142) 
XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/768
[2009-08-26 01:34:46 2883] DEBUG (XendDomainInfo:2240) Removing vfb/0
[2009-08-26 01:34:46 2883] DEBUG (XendDomainInfo:1142) 
XendDomainInfo.destroyDevice: deviceClass = vfb, device = vfb/0
[2009-08-26 01:34:46 2883] DEBUG (XendDomainInfo:2240) Removing console/0
[2009-08-26 01:34:46 2883] DEBUG (XendDomainInfo:1142) 
XendDomainInfo.destroyDevice: deviceClass = console, device = console/0
[2009-08-26 01:34:46 2883] ERROR (XendDomain:1149) Restore failed
Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/xen/xend/XendDomain.py", line 1147, in 
domain_restore_fd
    return XendCheckpoint.restore(self, fd, paused=paused, 
relocating=relocating)
  File "/usr/lib/python2.4/site-packages/xen/xend/XendCheckpoint.py", line 282, 
in restore
    forkHelper(cmd, fd, handler.handler, True)
  File "/usr/lib/python2.4/site-packages/xen/xend/XendCheckpoint.py", line 406, 
in forkHelper
    raise XendError("%s failed" % string.join(cmd))
XendError: /usr/lib/xen/bin/xc_restore 31 2 2 3 1 1 1 failed
[2009-08-26 02:08:04 2883] DEBUG (XendDomainInfo:93) 
XendDomainInfo.create(['vm', ['name', 'Windows_Server2008'], ['memory', '600'], 
['on_reboot', 'restart'], ['on_crash', 'restart'], ['vcpus', 1], 
['on_xend_start', 'ignore'], ['on_xend_stop', 'ignore'], ['bootloader', 
'/usr/bin/pygrub'], ['bootloader_args', '-q'], ['image', ['hvm', ['kernel', 
'/usr/lib/xen/boot/hvmloader'], ['videoram', 4], ['device_model', 
'/usr/lib/xen/bin/qemu-dm'], ['pae', 1], ['vcpus', 1], ['boot', 'dc'], ['fda', 
''], ['fdb', ''], ['timer_mode', 1], ['localtime', 0], ['serial', 'pty'], 
['stdvga', 0], ['isa', 0], ['nographic', 0], ['soundhw', ''], ['vnc', 1], 
['vncunused', 1], ['vnclisten', '0.0.0.0'], ['xauthority', 
'/root/.Xauthority'], ['rtc_timeoffset', 0], ['monitor', 0], ['acpi', 1], 
['apic', 1], ['usb', 0], ['usbdevice', 'tablet'], ['keymap', ''], ['pci', []], 
['hpet', 0], ['guest_os_type', 'default'], ['hap', 1], ['cpuid', []], 
['cpuid_check', []], ['viridian', 0], ['pci_msitranslate', 1], ['vpt_align', 
1], ['pci_power_mgmt', 0], ['xen_platform_pci', 1], ['vncpasswd', 
'XXXXXXXX']]], ['s3_integrity', 1], ['device', ['vbd', ['uname', 
'file:/mnt/data/vm/srv2008/System.img'], ['dev', 'hda'], ['mode', 'w']]], 
['device', ['vif', ['bridge', 'xenbr0']]]])
[2009-08-26 02:08:04 2883] DEBUG (XendDomainInfo:2317) 
XendDomainInfo.constructDomain
[2009-08-26 02:08:04 2883] DEBUG (balloon:181) Balloon: 1472776 KiB free; need 
4096; done.
[2009-08-26 02:08:04 2883] DEBUG (XendDomain:452) Adding Domain: 3
[2009-08-26 02:08:04 2883] DEBUG (XendDomainInfo:2518) 
XendDomainInfo.initDomain: 3 256
[2009-08-26 02:08:04 2883] DEBUG (image:319) No VNC passwd configured for vfb 
access
[2009-08-26 02:08:04 2883] DEBUG (image:806) args: boot, val: dc
[2009-08-26 02:08:04 2883] DEBUG (image:806) args: fda, val: None
[2009-08-26 02:08:04 2883] DEBUG (image:806) args: fdb, val: None
[2009-08-26 02:08:04 2883] DEBUG (image:806) args: soundhw, val: None
[2009-08-26 02:08:04 2883] DEBUG (image:806) args: localtime, val: 0
[2009-08-26 02:08:04 2883] DEBUG (image:806) args: serial, val: ['pty']
[2009-08-26 02:08:04 2883] DEBUG (image:806) args: std-vga, val: 0
[2009-08-26 02:08:04 2883] DEBUG (image:806) args: isa, val: 0
[2009-08-26 02:08:04 2883] DEBUG (image:806) args: acpi, val: 1
[2009-08-26 02:08:04 2883] DEBUG (image:806) args: usb, val: 0
[2009-08-26 02:08:04 2883] DEBUG (image:806) args: usbdevice, val: tablet
[2009-08-26 02:08:04 2883] INFO (image:742) Need to create platform 
device.[domid:3]
[2009-08-26 02:08:04 2883] DEBUG (XendDomainInfo:2542) 
_initDomain:shadow_memory=0x0, memory_static_max=0x25800000, 
memory_static_min=0x0.
[2009-08-26 02:08:04 2883] DEBUG (balloon:181) Balloon: 1471364 KiB free; need 
627712; done.
[2009-08-26 02:08:04 2883] INFO (image:170) buildDomain os=hvm dom=3 vcpus=1
[2009-08-26 02:08:04 2883] DEBUG (image:859) domid          = 3
[2009-08-26 02:08:04 2883] DEBUG (image:860) image          = 
/usr/lib/xen/boot/hvmloader
[2009-08-26 02:08:04 2883] DEBUG (image:861) store_evtchn   = 2
[2009-08-26 02:08:04 2883] DEBUG (image:862) memsize        = 600
[2009-08-26 02:08:04 2883] DEBUG (image:863) target         = 600
[2009-08-26 02:08:04 2883] DEBUG (image:864) vcpus          = 1
[2009-08-26 02:08:04 2883] DEBUG (image:865) acpi           = 1
[2009-08-26 02:08:04 2883] DEBUG (image:866) apic           = 1
[2009-08-26 02:08:04 2883] INFO (XendDomainInfo:2178) createDevice: vfb : 
{'vncunused': 1, 'vnclisten': '0.0.0.0', 'vnc': '1', 'uuid': 
'a34d2d0b-8bff-5bbc-70fc-fa3b5c6f8262', 'other_config': {'vncunused': 1, 
'vnclisten': '0.0.0.0', 'vnc': '1'}}
[2009-08-26 02:08:04 2883] DEBUG (DevController:95) DevController: writing 
{'state': '1', 'backend-id': '0', 'backend': '/local/domain/0/backend/vfb/3/0'} 
to /local/domain/3/device/vfb/0.
[2009-08-26 02:08:04 2883] DEBUG (DevController:97) DevController: writing 
{'vncunused': '1', 'domain': 'Windows_Server2008', 'frontend': 
'/local/domain/3/device/vfb/0', 'uuid': 'a34d2d0b-8bff-5bbc-70fc-fa3b5c6f8262', 
'frontend-id': '3', 'vnclisten': '0.0.0.0', 'state': '1', 'online': '1', 'vnc': 
'1'} to /local/domain/0/backend/vfb/3/0.
[2009-08-26 02:08:04 2883] INFO (XendDomainInfo:2178) createDevice: vbd : 
{'uuid': 'ed0540fc-6021-53fe-75e8-b2e72cd335e2', 'bootable': 1, 'driver': 
'paravirtualised', 'dev': 'hda', 'uname': 
'file:/mnt/data/vm/srv2008/System.img', 'mode': 'w'}
[2009-08-26 02:08:04 2883] DEBUG (DevController:95) DevController: writing 
{'backend-id': '0', 'virtual-device': '768', 'device-type': 'disk', 'state': 
'1', 'backend': '/local/domain/0/backend/vbd/3/768'} to 
/local/domain/3/device/vbd/768.
[2009-08-26 02:08:04 2883] DEBUG (DevController:97) DevController: writing 
{'domain': 'Windows_Server2008', 'frontend': '/local/domain/3/device/vbd/768', 
'uuid': 'ed0540fc-6021-53fe-75e8-b2e72cd335e2', 'bootable': '1', 'dev': 'hda', 
'state': '1', 'params': '/mnt/data/vm/srv2008/System.img', 'mode': 'w', 
'online': '1', 'frontend-id': '3', 'type': 'file'} to 
/local/domain/0/backend/vbd/3/768.
[2009-08-26 02:08:04 2883] INFO (XendDomainInfo:2178) createDevice: vif : 
{'bridge': 'xenbr0', 'mac': '00:16:3e:21:0f:8e', 'uuid': 
'c1729c89-6ca7-04bb-1eaa-225c0144d5fd'}
[2009-08-26 02:08:04 2883] DEBUG (DevController:95) DevController: writing 
{'backend-id': '0', 'mac': '00:16:3e:21:0f:8e', 'handle': '0', 'state': '1', 
'backend': '/local/domain/0/backend/vif/3/0'} to /local/domain/3/device/vif/0.
[2009-08-26 02:08:04 2883] DEBUG (DevController:97) DevController: writing 
{'bridge': 'xenbr0', 'domain': 'Windows_Server2008', 'handle': '0', 'uuid': 
'c1729c89-6ca7-04bb-1eaa-225c0144d5fd', 'script': 
'/etc/xen/scripts/vif-bridge', 'mac': '00:16:3e:21:0f:8e', 'frontend-id': '3', 
'state': '1', 'online': '1', 'frontend': '/local/domain/3/device/vif/0'} to 
/local/domain/0/backend/vif/3/0.
[2009-08-26 02:08:04 2883] INFO (image:391) spawning device models: 
/usr/lib/xen/bin/qemu-dm ['/usr/lib/xen/bin/qemu-dm', '-d', '3', 
'-domain-name', 'Windows_Server2008', '-videoram', '4', '-vnc', '0.0.0.0:0', 
'-vncunused', '-vcpus', '1', '-boot', 'dc', '-serial', 'pty', '-acpi', 
'-usbdevice', 'tablet', '-net', 
'nic,vlan=1,macaddr=00:16:3e:21:0f:8e,model=rtl8139', '-net', 
'tap,vlan=1,ifname=tap3.0,bridge=xenbr0', '-M', 'xenfv']
[2009-08-26 02:08:04 2883] INFO (image:440) device model pid: 6650
[2009-08-26 02:08:05 2883] INFO (image:528) waiting for sentinel_fifo
[2009-08-26 02:08:05 2883] DEBUG (XendDomainInfo:3082) Storing VM details: 
{'on_xend_stop': 'ignore', 'shadow_memory': '6', 'uuid': 
'67f27bcf-96d8-a365-0f5a-d683bd36e281', 'on_reboot': 'restart', 'start_time': 
'1251223685.0', 'on_poweroff': 'destroy', 'bootloader_args': '-q', 
'on_xend_start': 'ignore', 'on_crash': 'restart', 'xend/restart_count': '0', 
'vcpus': '1', 'vcpu_avail': '1', 'bootloader': '/usr/bin/pygrub', 'image': 
'(hvm (kernel ) (videoram 4) (hpet 0) (stdvga 0) (vnclisten 0.0.0.0) (loader 
/usr/lib/xen/boot/hvmloader) (serial pty) (vncunused 1) (xen_platform_pci 1) 
(boot dc) (rtc_timeoffset 0) (pci ()) (pae 1) (vpt_align 1) (hap 1) (viridian 
0) (acpi 1) (localtime 0) (timer_mode 1) (vnc 1) (nographic 0) (guest_os_type 
default) (pci_msitranslate 1) (apic 1) (monitor 0) (usbdevice tablet) 
(device_model /usr/lib/xen/bin/qemu-dm) (pci_power_mgmt 0) (usb 0) (xauthority 
/root/.Xauthority) (isa 0) (notes (SUSPEND_CANCEL 1)))', 'name': 
'Windows_Server2008'}
[2009-08-26 02:08:05 2883] DEBUG (XendDomainInfo:1638) Storing domain details: 
{'console/port': '3', 'name': 'Windows_Server2008', 'console/limit': '1048576', 
'store/port': '2', 'vm': '/vm/67f27bcf-96d8-a365-0f5a-d683bd36e281', 'domid': 
'3', 'image/suspend-cancel': '1', 'cpu/0/availability': 'online', 
'memory/target': '614400', 'control/platform-feature-multiprocessor-suspend': 
'1', 'store/ring-ref': '1044476', 'console/type': 'ioemu'}
[2009-08-26 02:08:05 2883] DEBUG (DevController:95) DevController: writing 
{'state': '1', 'backend-id': '0', 'backend': 
'/local/domain/0/backend/console/3/0'} to /local/domain/3/device/console/0.
[2009-08-26 02:08:05 2883] DEBUG (DevController:97) DevController: writing 
{'domain': 'Windows_Server2008', 'frontend': 
'/local/domain/3/device/console/0', 'uuid': 
'619b411b-be8b-ccd1-07ed-e8116969eb18', 'frontend-id': '3', 'state': '1', 
'location': '3', 'online': '1', 'protocol': 'vt100'} to 
/local/domain/0/backend/console/3/0.
[2009-08-26 02:08:05 2883] DEBUG (XendDomainInfo:1725) 
XendDomainInfo.handleShutdownWatch
[2009-08-26 02:08:05 2883] DEBUG (DevController:139) Waiting for devices vif.
[2009-08-26 02:08:05 2883] DEBUG (DevController:144) Waiting for 0.
[2009-08-26 02:08:05 2883] DEBUG (DevController:629) hotplugStatusCallback 
/local/domain/0/backend/vif/3/0/hotplug-status.
[2009-08-26 02:08:06 2883] DEBUG (DevController:629) hotplugStatusCallback 
/local/domain/0/backend/vif/3/0/hotplug-status.
[2009-08-26 02:08:06 2883] DEBUG (DevController:643) hotplugStatusCallback 1.
[2009-08-26 02:08:06 2883] DEBUG (DevController:139) Waiting for devices vscsi.
[2009-08-26 02:08:06 2883] DEBUG (DevController:139) Waiting for devices vbd.
[2009-08-26 02:08:06 2883] DEBUG (DevController:144) Waiting for 768.
[2009-08-26 02:08:06 2883] DEBUG (DevController:629) hotplugStatusCallback 
/local/domain/0/backend/vbd/3/768/hotplug-status.
[2009-08-26 02:08:06 2883] DEBUG (DevController:629) hotplugStatusCallback 
/local/domain/0/backend/vbd/3/768/hotplug-status.
[2009-08-26 02:08:06 2883] DEBUG (DevController:643) hotplugStatusCallback 1.
[2009-08-26 02:08:06 2883] DEBUG (DevController:139) Waiting for devices irq.
[2009-08-26 02:08:06 2883] DEBUG (DevController:139) Waiting for devices vkbd.
[2009-08-26 02:08:06 2883] DEBUG (DevController:139) Waiting for devices vfb.
[2009-08-26 02:08:06 2883] DEBUG (DevController:139) Waiting for devices 
console.
[2009-08-26 02:08:06 2883] DEBUG (DevController:144) Waiting for 0.
[2009-08-26 02:08:06 2883] DEBUG (DevController:139) Waiting for devices pci.
[2009-08-26 02:08:06 2883] DEBUG (DevController:139) Waiting for devices 
ioports.
[2009-08-26 02:08:06 2883] DEBUG (DevController:139) Waiting for devices tap.
[2009-08-26 02:08:06 2883] DEBUG (DevController:139) Waiting for devices vtpm.
[2009-08-26 02:08:06 2883] INFO (XendDomain:1180) Domain Windows_Server2008 (3) 
unpaused.
[2009-08-26 02:10:47 2883] DEBUG (XendCheckpoint:110) [xc_save]: 
/usr/lib/xen/bin/xc_save 31 3 0 0 4
[2009-08-26 02:10:47 2883] INFO (XendCheckpoint:418) xc_save: failed to get the 
suspend evtchn port
[2009-08-26 02:10:47 2883] INFO (XendCheckpoint:418) 
[2009-08-26 02:10:47 2883] DEBUG (XendCheckpoint:389) suspend
[2009-08-26 02:10:47 2883] DEBUG (XendCheckpoint:113) In saveInputHandler 
suspend
[2009-08-26 02:10:47 2883] DEBUG (XendCheckpoint:115) Suspending 3 ...
[2009-08-26 02:10:47 2883] DEBUG (XendDomainInfo:518) 
XendDomainInfo.shutdown(suspend)
[2009-08-26 02:10:47 2883] INFO (XendCheckpoint:418) -->xc_domain_save()
[2009-08-26 02:10:47 2883] INFO (XendCheckpoint:418) platform info, max_mfn: 
7d4b0, hvirt_start ffc00000, pt_lvevel 4, guest_width 8
[2009-08-26 02:10:47 2883] INFO (XendCheckpoint:418) shared_info_frame: 0xfffff
[2009-08-26 02:10:47 2883] DEBUG (XendDomainInfo:1725) 
XendDomainInfo.handleShutdownWatch
[2009-08-26 02:10:47 2883] INFO (XendDomainInfo:535) HVM save:remote shutdown 
dom 3!
[2009-08-26 02:10:47 2883] INFO (XendCheckpoint:121) Domain 3 suspended.
[2009-08-26 02:10:47 2883] INFO (XendDomainInfo:1913) Domain has shutdown: 
name=migrating-Windows_Server2008 id=3 reason=suspend.
[2009-08-26 02:10:47 2883] INFO (image:476) signalDeviceModel:restore dm state 
to running
[2009-08-26 02:10:47 2883] DEBUG (XendCheckpoint:130) Written done
[2009-08-26 02:10:47 2883] INFO (XendCheckpoint:418) p2m_size: 0x100000Need 
another buffer for HVM context
[2009-08-26 02:10:47 2883] INFO (XendCheckpoint:418) Setup the mfn_to_pfn table 
mapping
[2009-08-26 02:10:47 2883] INFO (XendCheckpoint:418) Start writing out the 
saved-domain record.
[2009-08-26 02:10:55 2883] INFO (XendCheckpoint:418) Saving memory pages: iter 
1   0%  5% 10% 15% 20% 25% 30% 35% 40% 
45% 50% 55% 60% 65% 70% 75% 80% 85% 90% 
95%
 1: sent 157696, skipped 0, delta 8022ms, dom0 50%, target 0%, sent 644Mb/s, 
dirtied 0Mb/s 0 pages
[2009-08-26 02:10:55 2883] INFO (XendCheckpoint:418) Total pages sent= 157696 
(0.15x)
[2009-08-26 02:10:55 2883] INFO (XendCheckpoint:418) (of which 0 were fixups)
[2009-08-26 02:10:55 2883] INFO (XendCheckpoint:418) All memory is saved
[2009-08-26 02:10:56 2883] INFO (XendCheckpoint:418) Save exit rc=0
[2009-08-26 02:10:56 2883] DEBUG (XendDomainInfo:2750) XendDomainInfo.destroy: 
domid=3
[2009-08-26 02:10:56 2883] DEBUG (XendDomainInfo:2220) Destroying device model
[2009-08-26 02:10:56 2883] DEBUG (XendDomainInfo:2227) Releasing devices
[2009-08-26 02:10:56 2883] DEBUG (XendDomainInfo:2240) Removing vif/0
[2009-08-26 02:10:56 2883] DEBUG (XendDomainInfo:1142) 
XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0
[2009-08-26 02:10:56 2883] INFO (image:553) migrating-Windows_Server2008 device 
model terminated
[2009-08-26 02:10:56 2883] DEBUG (XendDomainInfo:2240) Removing vbd/768
[2009-08-26 02:10:56 2883] DEBUG (XendDomainInfo:1142) 
XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/768
[2009-08-26 02:10:56 2883] DEBUG (XendDomainInfo:2240) Removing vfb/0
[2009-08-26 02:10:56 2883] DEBUG (XendDomainInfo:1142) 
XendDomainInfo.destroyDevice: deviceClass = vfb, device = vfb/0
[2009-08-26 02:10:56 2883] DEBUG (XendDomainInfo:2240) Removing console/0
[2009-08-26 02:10:56 2883] DEBUG (XendDomainInfo:1142) 
XendDomainInfo.destroyDevice: deviceClass = console, device = console/0
[2009-08-26 02:11:01 2883] DEBUG (XendDomainInfo:227) 
XendDomainInfo.restore(['domain', ['domid', '3'], ['on_crash', 'restart'], 
['uuid', '67f27bcf-96d8-a365-0f5a-d683bd36e281'], ['bootloader_args', '-q'], 
['vcpus', '1'], ['name', 'Windows_Server2008'], ['on_poweroff', 'destroy'], 
['on_reboot', 'restart'], ['cpus', [[]]], ['bootloader', '/usr/bin/pygrub'], 
['maxmem', '600'], ['memory', '600'], ['shadow_memory', '6'], ['vcpu_avail', 
'1'], ['features'], ['on_xend_start', 'ignore'], ['on_xend_stop', 'ignore'], 
['start_time', '1251223685.0'], ['cpu_time', '0.0'], ['online_vcpus', '1'], 
['image', ['hvm', ['kernel'], ['videoram', '4'], ['hpet', '0'], ['stdvga', 
'0'], ['vnclisten', '0.0.0.0'], ['loader', '/usr/lib/xen/boot/hvmloader'], 
['serial', 'pty'], ['vncunused', '1'], ['xen_platform_pci', '1'], ['boot', 
'dc'], ['rtc_timeoffset', '0'], ['pci', []], ['pae', '1'], ['vpt_align', '1'], 
['hap', '1'], ['viridian', '0'], ['acpi', '1'], ['localtime', '0'], 
['timer_mode', '1'], ['vnc', '1'], ['nographic', '0'], ['guest_os_type', 
'default'], ['pci_msitranslate', '1'], ['apic', '1'], ['monitor', '0'], 
['usbdevice', 'tablet'], ['device_model', '/usr/lib/xen/bin/qemu-dm'], 
['pci_power_mgmt', '0'], ['usb', '0'], ['xauthority', '/root/.Xauthority'], 
['isa', '0'], ['notes', ['SUSPEND_CANCEL', '1']]]], ['status', '2'], ['state', 
'--p---'], ['store_mfn', '1044476'], ['device', ['vif', ['bridge', 'xenbr0'], 
['mac', '00:16:3e:21:0f:8e'], ['script', '/etc/xen/scripts/vif-bridge'], 
['uuid', 'c1729c89-6ca7-04bb-1eaa-225c0144d5fd'], ['backend', '0']]], 
['device', ['vbd', ['uuid', 'ed0540fc-6021-53fe-75e8-b2e72cd335e2'], 
['bootable', '1'], ['dev', 'hda:disk'], ['uname', 
'file:/mnt/data/vm/srv2008/System.img'], ['mode', 'w'], ['backend', '0'], 
['bootable', '1'], ['VDI']]], ['device', ['vfb', ['vncunused', '1'], 
['vnclisten', '0.0.0.0'], ['vnc', '1'], ['uuid', 
'a34d2d0b-8bff-5bbc-70fc-fa3b5c6f8262']]], ['device', ['console', ['protocol', 
'vt100'], ['location', '3'], ['uuid', 
'619b411b-be8b-ccd1-07ed-e8116969eb18']]]])
[2009-08-26 02:11:01 2883] DEBUG (XendDomainInfo:2317) 
XendDomainInfo.constructDomain
[2009-08-26 02:11:01 2883] DEBUG (balloon:181) Balloon: 1472776 KiB free; need 
4096; done.
[2009-08-26 02:11:01 2883] DEBUG (XendDomain:452) Adding Domain: 4
[2009-08-26 02:11:01 2883] DEBUG (XendDomainInfo:3082) Storing VM details: 
{'on_xend_stop': 'ignore', 'shadow_memory': '6', 'uuid': 
'67f27bcf-96d8-a365-0f5a-d683bd36e281', 'on_reboot': 'restart', 'start_time': 
'1251223685.0', 'on_poweroff': 'destroy', 'bootloader_args': '-q', 
'on_xend_start': 'ignore', 'on_crash': 'restart', 'xend/restart_count': '0', 
'vcpus': '1', 'vcpu_avail': '1', 'bootloader': '/usr/bin/pygrub', 'image': 
'(hvm (kernel ) (videoram 4) (hpet 0) (stdvga 0) (vnclisten 0.0.0.0) (loader 
/usr/lib/xen/boot/hvmloader) (serial pty) (vncunused 1) (xen_platform_pci 1) 
(boot dc) (rtc_timeoffset 0) (pci ()) (pae 1) (vpt_align 1) (hap 1) (viridian 
0) (acpi 1) (localtime 0) (timer_mode 1) (vnc 1) (nographic 0) (guest_os_type 
default) (pci_msitranslate 1) (apic 1) (monitor 0) (usbdevice tablet) 
(device_model /usr/lib/xen/bin/qemu-dm) (pci_power_mgmt 0) (usb 0) (xauthority 
/root/.Xauthority) (isa 0) (notes (SUSPEND_CANCEL 1)))', 'name': 
'Windows_Server2008'}
[2009-08-26 02:11:01 2883] INFO (XendDomainInfo:2178) createDevice: vfb : 
{'vncunused': '1', 'vnclisten': '0.0.0.0', 'vnc': '1', 'uuid': 
'a34d2d0b-8bff-5bbc-70fc-fa3b5c6f8262', 'other_config': {'vncunused': '1', 
'vnclisten': '0.0.0.0', 'vnc': '1'}}
[2009-08-26 02:11:01 2883] DEBUG (DevController:95) DevController: writing 
{'state': '1', 'backend-id': '0', 'backend': '/local/domain/0/backend/vfb/4/0'} 
to /local/domain/4/device/vfb/0.
[2009-08-26 02:11:01 2883] DEBUG (DevController:97) DevController: writing 
{'vncunused': '1', 'domain': 'Windows_Server2008', 'frontend': 
'/local/domain/4/device/vfb/0', 'uuid': 'a34d2d0b-8bff-5bbc-70fc-fa3b5c6f8262', 
'frontend-id': '4', 'vnclisten': '0.0.0.0', 'state': '1', 'online': '1', 'vnc': 
'1'} to /local/domain/0/backend/vfb/4/0.
[2009-08-26 02:11:01 2883] INFO (XendDomainInfo:2178) createDevice: console : 
{'protocol': 'vt100', 'location': '3', 'uuid': 
'619b411b-be8b-ccd1-07ed-e8116969eb18'}
[2009-08-26 02:11:01 2883] DEBUG (DevController:95) DevController: writing 
{'state': '1', 'backend-id': '0', 'backend': 
'/local/domain/0/backend/console/4/0'} to /local/domain/4/device/console/0.
[2009-08-26 02:11:01 2883] DEBUG (DevController:97) DevController: writing 
{'domain': 'Windows_Server2008', 'frontend': 
'/local/domain/4/device/console/0', 'uuid': 
'619b411b-be8b-ccd1-07ed-e8116969eb18', 'frontend-id': '4', 'state': '1', 
'location': '3', 'online': '1', 'protocol': 'vt100'} to 
/local/domain/0/backend/console/4/0.
[2009-08-26 02:11:01 2883] INFO (XendDomainInfo:2178) createDevice: vbd : 
{'uuid': 'ed0540fc-6021-53fe-75e8-b2e72cd335e2', 'bootable': '1', 'driver': 
'paravirtualised', 'dev': 'hda:disk', 'uname': 
'file:/mnt/data/vm/srv2008/System.img', 'mode': 'w', 'backend': '0'}
[2009-08-26 02:11:01 2883] DEBUG (DevController:95) DevController: writing 
{'backend-id': '0', 'virtual-device': '768', 'device-type': 'disk', 'state': 
'1', 'backend': '/local/domain/0/backend/vbd/4/768'} to 
/local/domain/4/device/vbd/768.
[2009-08-26 02:11:01 2883] DEBUG (DevController:97) DevController: writing 
{'domain': 'Windows_Server2008', 'frontend': '/local/domain/4/device/vbd/768', 
'uuid': 'ed0540fc-6021-53fe-75e8-b2e72cd335e2', 'bootable': '1', 'dev': 'hda', 
'state': '1', 'params': '/mnt/data/vm/srv2008/System.img', 'mode': 'w', 
'online': '1', 'frontend-id': '4', 'type': 'file'} to 
/local/domain/0/backend/vbd/4/768.
[2009-08-26 02:11:01 2883] INFO (XendDomainInfo:2178) createDevice: vif : 
{'bridge': 'xenbr0', 'mac': '00:16:3e:21:0f:8e', 'script': 
'/etc/xen/scripts/vif-bridge', 'uuid': 'c1729c89-6ca7-04bb-1eaa-225c0144d5fd', 
'backend': '0'}
[2009-08-26 02:11:01 2883] DEBUG (DevController:95) DevController: writing 
{'backend-id': '0', 'mac': '00:16:3e:21:0f:8e', 'handle': '0', 'state': '1', 
'backend': '/local/domain/0/backend/vif/4/0'} to /local/domain/4/device/vif/0.
[2009-08-26 02:11:01 2883] DEBUG (DevController:97) DevController: writing 
{'bridge': 'xenbr0', 'domain': 'Windows_Server2008', 'handle': '0', 'uuid': 
'c1729c89-6ca7-04bb-1eaa-225c0144d5fd', 'script': 
'/etc/xen/scripts/vif-bridge', 'mac': '00:16:3e:21:0f:8e', 'frontend-id': '4', 
'state': '1', 'online': '1', 'frontend': '/local/domain/4/device/vif/0'} to 
/local/domain/0/backend/vif/4/0.
[2009-08-26 02:11:01 2883] DEBUG (XendDomainInfo:1638) Storing domain details: 
{'console/port': '3', 'name': 'Windows_Server2008', 'console/limit': '1048576', 
'image/suspend-cancel': '1', 'domid': '4', 'vm': 
'/vm/67f27bcf-96d8-a365-0f5a-d683bd36e281', 'cpu/0/availability': 'online', 
'memory/target': '614400', 'control/platform-feature-multiprocessor-suspend': 
'1', 'console/type': 'ioemu', 'store/port': '2'}
[2009-08-26 02:11:01 2883] INFO (XendCheckpoint:243) restore hvm domain 4, 
apic=1, pae=1
[2009-08-26 02:11:01 2883] DEBUG (image:319) No VNC passwd configured for vfb 
access
[2009-08-26 02:11:01 2883] DEBUG (image:806) args: boot, val: dc
[2009-08-26 02:11:01 2883] DEBUG (image:806) args: fda, val: None
[2009-08-26 02:11:01 2883] DEBUG (image:806) args: fdb, val: None
[2009-08-26 02:11:01 2883] DEBUG (image:806) args: soundhw, val: None
[2009-08-26 02:11:01 2883] DEBUG (image:806) args: localtime, val: 0
[2009-08-26 02:11:01 2883] DEBUG (image:806) args: serial, val: ['pty']
[2009-08-26 02:11:01 2883] DEBUG (image:806) args: std-vga, val: 0
[2009-08-26 02:11:01 2883] DEBUG (image:806) args: isa, val: 0
[2009-08-26 02:11:01 2883] DEBUG (image:806) args: acpi, val: 1
[2009-08-26 02:11:01 2883] DEBUG (image:806) args: usb, val: 0
[2009-08-26 02:11:01 2883] DEBUG (image:806) args: usbdevice, val: tablet
[2009-08-26 02:11:01 2883] INFO (image:742) Need to create platform 
device.[domid:4]
[2009-08-26 02:11:01 2883] DEBUG (XendCheckpoint:261) restore:shadow=0x6, 
_static_max=0x25800000, _static_min=0x0, 
[2009-08-26 02:11:01 2883] DEBUG (balloon:181) Balloon: 1471364 KiB free; need 
624640; done.
[2009-08-26 02:11:01 2883] DEBUG (XendCheckpoint:278) [xc_restore]: 
/usr/lib/xen/bin/xc_restore 31 4 2 3 1 1 1
[2009-08-26 02:11:01 2883] INFO (XendCheckpoint:418) -->xc_domain_restore()
[2009-08-26 02:11:01 2883] INFO (XendCheckpoint:418) xc_domain_restore start: 
p2m_size = 100000
[2009-08-26 02:11:01 2883] INFO (XendCheckpoint:418) platform info, max_mfn: 
7d4b0, hvirt_start ffc00000, pt_lvevel 4, guest_width 8
[2009-08-26 02:11:01 2883] INFO (XendCheckpoint:418) memory alloc success
[2009-08-26 02:11:01 2883] INFO (XendCheckpoint:418) lock regin_mfn and 
p2m_batch success
[2009-08-26 02:11:01 2883] INFO (XendCheckpoint:418) shared_info_frame: 
0xffffffff
[2009-08-26 02:11:01 2883] INFO (XendCheckpoint:418) all PFNs are marked as 
invalid
[2009-08-26 02:11:01 2883] INFO (XendCheckpoint:418) Reloading memory pages:   
0%
[2009-08-26 02:11:01 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 02:11:01 2883] INFO (XendCheckpoint:418) nr_mfns: 992
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 02:11:02 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
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[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) nr_mfns: 1024
[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) nr_mfns: 7
[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) nr_mfns: 4
[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) batch 1024
[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) nr_mfns: 1
[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) batch -2
[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) batch -3
[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) batch -4
[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) batch 0
[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) Received all pages (0 
races)
[2009-08-26 02:11:09 2883] INFO (XendCheckpoint:418) Restore exit with rc=0
[2009-08-26 02:11:09 2883] DEBUG (XendCheckpoint:389) store-mfn 1044476
[2009-08-26 02:11:09 2883] DEBUG (XendDomainInfo:2688) 
XendDomainInfo.completeRestore
[2009-08-26 02:11:09 2883] DEBUG (image:319) No VNC passwd configured for vfb 
access
[2009-08-26 02:11:09 2883] DEBUG (image:806) args: boot, val: dc
[2009-08-26 02:11:09 2883] DEBUG (image:806) args: fda, val: None
[2009-08-26 02:11:09 2883] DEBUG (image:806) args: fdb, val: None
[2009-08-26 02:11:09 2883] DEBUG (image:806) args: soundhw, val: None
[2009-08-26 02:11:09 2883] DEBUG (image:806) args: localtime, val: 0
[2009-08-26 02:11:09 2883] DEBUG (image:806) args: serial, val: ['pty']
[2009-08-26 02:11:09 2883] DEBUG (image:806) args: std-vga, val: 0
[2009-08-26 02:11:09 2883] DEBUG (image:806) args: isa, val: 0
[2009-08-26 02:11:09 2883] DEBUG (image:806) args: acpi, val: 1
[2009-08-26 02:11:09 2883] DEBUG (image:806) args: usb, val: 0
[2009-08-26 02:11:09 2883] DEBUG (image:806) args: usbdevice, val: tablet
[2009-08-26 02:11:10 2883] INFO (image:742) Need to create platform 
device.[domid:4]
[2009-08-26 02:11:10 2883] INFO (image:391) spawning device models: 
/usr/lib/xen/bin/qemu-dm ['/usr/lib/xen/bin/qemu-dm', '-d', '4', 
'-domain-name', 'Windows_Server2008', '-videoram', '4', '-vnc', '0.0.0.0:0', 
'-vncunused', '-vcpus', '1', '-boot', 'dc', '-serial', 'pty', '-acpi', 
'-usbdevice', 'tablet', '-net', 
'nic,vlan=1,macaddr=00:16:3e:21:0f:8e,model=rtl8139', '-net', 
'tap,vlan=1,ifname=tap4.0,bridge=xenbr0', '-M', 'xenfv', '-loadvm', 
'/var/lib/xen/qemu-save.4']
[2009-08-26 02:11:10 2883] INFO (image:440) device model pid: 8109
[2009-08-26 02:11:10 2883] DEBUG (XendDomainInfo:1638) Storing domain details: 
{'console/port': '3', 'name': 'Windows_Server2008', 'console/limit': '1048576', 
'store/port': '2', 'vm': '/vm/67f27bcf-96d8-a365-0f5a-d683bd36e281', 'domid': 
'4', 'image/suspend-cancel': '1', 'cpu/0/availability': 'online', 
'memory/target': '614400', 'control/platform-feature-multiprocessor-suspend': 
'1', 'store/ring-ref': '1044476', 'console/type': 'ioemu'}
[2009-08-26 02:11:10 2883] INFO (image:528) waiting for sentinel_fifo
[2009-08-26 02:11:10 2883] DEBUG (XendDomainInfo:2701) 
XendDomainInfo.completeRestore done
[2009-08-26 02:11:10 2883] DEBUG (DevController:139) Waiting for devices vif.
[2009-08-26 02:11:10 2883] DEBUG (XendDomainInfo:1725) 
XendDomainInfo.handleShutdownWatch
[2009-08-26 02:11:10 2883] DEBUG (DevController:144) Waiting for 0.
[2009-08-26 02:11:10 2883] DEBUG (DevController:629) hotplugStatusCallback 
/local/domain/0/backend/vif/4/0/hotplug-status.
[2009-08-26 02:11:10 2883] DEBUG (DevController:643) hotplugStatusCallback 1.
[2009-08-26 02:11:10 2883] DEBUG (DevController:139) Waiting for devices vscsi.
[2009-08-26 02:11:10 2883] DEBUG (DevController:139) Waiting for devices vbd.
[2009-08-26 02:11:10 2883] DEBUG (DevController:144) Waiting for 768.
[2009-08-26 02:11:10 2883] DEBUG (DevController:629) hotplugStatusCallback 
/local/domain/0/backend/vbd/4/768/hotplug-status.
[2009-08-26 02:11:10 2883] DEBUG (DevController:643) hotplugStatusCallback 1.
[2009-08-26 02:11:10 2883] DEBUG (DevController:139) Waiting for devices irq.
[2009-08-26 02:11:10 2883] DEBUG (DevController:139) Waiting for devices vkbd.
[2009-08-26 02:11:10 2883] DEBUG (DevController:139) Waiting for devices vfb.
[2009-08-26 02:11:10 2883] DEBUG (DevController:139) Waiting for devices 
console.
[2009-08-26 02:11:10 2883] DEBUG (DevController:144) Waiting for 0.
[2009-08-26 02:11:10 2883] DEBUG (DevController:139) Waiting for devices pci.
[2009-08-26 02:11:10 2883] DEBUG (DevController:139) Waiting for devices 
ioports.
[2009-08-26 02:11:10 2883] DEBUG (DevController:139) Waiting for devices tap.
[2009-08-26 02:11:10 2883] DEBUG (DevController:139) Waiting for devices vtpm.

/******************************************************************************
 * xc_domain_restore.c
 *
 * Restore the state of a guest session.
 *
 * Copyright (c) 2003, K A Fraser.
 * Copyright (c) 2006, Intel Corporation
 * Copyright (c) 2007, XenSource Inc.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307 USA.
 *
 */

#include <stdlib.h>
#include <unistd.h>

#include "xg_private.h"
#include "xg_save_restore.h"
#include "xc_dom.h"

#include <xen/hvm/ioreq.h>
#include <xen/hvm/params.h>

/* max mfn of the current host machine */
static unsigned long max_mfn;

/* virtual starting address of the hypervisor */
static unsigned long hvirt_start;

/* #levels of page tables used by the current guest */
static unsigned int pt_levels;

/* number of pfns this guest has (i.e. number of entries in the P2M) */
static unsigned long p2m_size;

/* number of 'in use' pfns in the guest (i.e. #P2M entries with a valid mfn) */
static unsigned long nr_pfns;

/* Live mapping of the table mapping each PFN to its current MFN. */
static xen_pfn_t *live_p2m = NULL;

/* A table mapping each PFN to its new MFN. */
static xen_pfn_t *p2m = NULL;

/* A table of P2M mappings in the current region */
static xen_pfn_t *p2m_batch = NULL;

/* Address size of the guest, in bytes */
unsigned int guest_width;

/*
** In the state file (or during transfer), all page-table pages are
** converted into a 'canonical' form where references to actual mfns
** are replaced with references to the corresponding pfns.
** This function inverts that operation, replacing the pfn values with
** the (now known) appropriate mfn values.
*/
static int uncanonicalize_pagetable(int xc_handle, uint32_t dom, 
                                    unsigned long type, void *page)
{
    int i, pte_last;
    unsigned long pfn;
    uint64_t pte;
    int nr_mfns = 0; 

    pte_last = PAGE_SIZE / ((pt_levels == 2)? 4 : 8);

    /* First pass: work out how many (if any) MFNs we need to alloc */
    for ( i = 0; i < pte_last; i++ )
    {
        if ( pt_levels == 2 )
            pte = ((uint32_t *)page)[i];
        else
            pte = ((uint64_t *)page)[i];

        /* XXX SMH: below needs fixing for PROT_NONE etc */
        if ( !(pte & _PAGE_PRESENT) )
            continue;
        
        pfn = (pte >> PAGE_SHIFT) & MFN_MASK_X86;
        
        if ( pfn >= p2m_size )
        {
            /* This "page table page" is probably not one; bail. */
            ERROR("Frame number in type %lu page table is out of range: "
                  "i=%d pfn=0x%lx p2m_size=%lu",
                  type >> 28, i, pfn, p2m_size);
            return 0;
        }
        
        if ( p2m[pfn] == INVALID_P2M_ENTRY )
        {
            /* Have a 'valid' PFN without a matching MFN - need to alloc */
            p2m_batch[nr_mfns++] = pfn; 
            p2m[pfn]--;
        }
    }

    /* Allocate the requisite number of mfns. */
    if ( nr_mfns &&
         (xc_domain_memory_populate_physmap(xc_handle, dom, nr_mfns, 0, 0,
                                            p2m_batch) != 0) )
    { 
        ERROR("Failed to allocate memory for batch.!\n"); 
        errno = ENOMEM;
        return 0; 
    }
    
    /* Second pass: uncanonicalize each present PTE */
    nr_mfns = 0;
    for ( i = 0; i < pte_last; i++ )
    {
        if ( pt_levels == 2 )
            pte = ((uint32_t *)page)[i];
        else
            pte = ((uint64_t *)page)[i];
        
        /* XXX SMH: below needs fixing for PROT_NONE etc */
        if ( !(pte & _PAGE_PRESENT) )
            continue;
        
        pfn = (pte >> PAGE_SHIFT) & MFN_MASK_X86;

        if ( p2m[pfn] == (INVALID_P2M_ENTRY-1) )
            p2m[pfn] = p2m_batch[nr_mfns++];

        pte &= ~MADDR_MASK_X86;
        pte |= (uint64_t)p2m[pfn] << PAGE_SHIFT;

        if ( pt_levels == 2 )
            ((uint32_t *)page)[i] = (uint32_t)pte;
        else
            ((uint64_t *)page)[i] = (uint64_t)pte;
    }

    return 1;
}


/* Load the p2m frame list, plus potential extended info chunk */
static xen_pfn_t *load_p2m_frame_list(
    int io_fd, int *pae_extended_cr3, int *ext_vcpucontext)
{
    xen_pfn_t *p2m_frame_list;
    vcpu_guest_context_any_t ctxt;
    xen_pfn_t p2m_fl_zero;

    /* Read first entry of P2M list, or extended-info signature (~0UL). */
    if ( read_exact(io_fd, &p2m_fl_zero, sizeof(long)) )
    {
        ERROR("read extended-info signature failed");
        return NULL;
    }
    
    if ( p2m_fl_zero == ~0UL )
    {
        uint32_t tot_bytes;
        
        /* Next 4 bytes: total size of following extended info. */
        if ( read_exact(io_fd, &tot_bytes, sizeof(tot_bytes)) )
        {
            ERROR("read extended-info size failed");
            return NULL;
        }
        
        while ( tot_bytes )
        {
            uint32_t chunk_bytes;
            char     chunk_sig[4];
            
            /* 4-character chunk signature + 4-byte remaining chunk size. */
            if ( read_exact(io_fd, chunk_sig, sizeof(chunk_sig)) ||
                 read_exact(io_fd, &chunk_bytes, sizeof(chunk_bytes)) ||
                 (tot_bytes < (chunk_bytes + 8)) )
            {
                ERROR("read extended-info chunk signature failed");
                return NULL;
            }
            tot_bytes -= 8;

            /* VCPU context structure? */
            if ( !strncmp(chunk_sig, "vcpu", 4) )
            {
                /* Pick a guest word-size and PT depth from the ctxt size */
                if ( chunk_bytes == sizeof (ctxt.x32) )
                {
                    guest_width = 4;
                    if ( pt_levels > 2 ) 
                        pt_levels = 3; 
                }
                else if ( chunk_bytes == sizeof (ctxt.x64) )
                {
                    guest_width = 8;
                    pt_levels = 4;
                }
                else 
                {
                    ERROR("bad extended-info context size %d", chunk_bytes);
                    return NULL;
                }

                if ( read_exact(io_fd, &ctxt, chunk_bytes) )
                {
                    ERROR("read extended-info vcpu context failed");
                    return NULL;
                }
                tot_bytes -= chunk_bytes;
                chunk_bytes = 0;

                if ( GET_FIELD(&ctxt, vm_assist) 
                     & (1UL << VMASST_TYPE_pae_extended_cr3) )
                    *pae_extended_cr3 = 1;
            }
            else if ( !strncmp(chunk_sig, "extv", 4) )
            {
                *ext_vcpucontext = 1;
            }
            
            /* Any remaining bytes of this chunk: read and discard. */
            while ( chunk_bytes )
            {
                unsigned long sz = MIN(chunk_bytes, sizeof(xen_pfn_t));
                if ( read_exact(io_fd, &p2m_fl_zero, sz) )
                {
                    ERROR("read-and-discard extended-info chunk bytes failed");
                    return NULL;
                }
                chunk_bytes -= sz;
                tot_bytes   -= sz;
            }
        }

        /* Now read the real first entry of P2M list. */
        if ( read_exact(io_fd, &p2m_fl_zero, sizeof(xen_pfn_t)) )
        {
            ERROR("read first entry of p2m_frame_list failed");
            return NULL;
        }
    }

    /* Now that we know the guest's word-size, can safely allocate 
     * the p2m frame list */
    if ( (p2m_frame_list = malloc(P2M_TOOLS_FL_SIZE)) == NULL )
    {
        ERROR("Couldn't allocate p2m_frame_list array");
        return NULL;
    }

    /* First entry has already been read. */
    p2m_frame_list[0] = p2m_fl_zero;
    if ( read_exact(io_fd, &p2m_frame_list[1], 
                    (P2M_FL_ENTRIES - 1) * sizeof(xen_pfn_t)) )
    {
        ERROR("read p2m_frame_list failed");
        return NULL;
    }
    
    return p2m_frame_list;
}

int xc_domain_restore(int xc_handle, int io_fd, uint32_t dom,
                      unsigned int store_evtchn, unsigned long *store_mfn,
                      unsigned int console_evtchn, unsigned long *console_mfn,
                      unsigned int hvm, unsigned int pae)
{
    DECLARE_DOMCTL;
    int rc = 1, frc, i, j, n, m, pae_extended_cr3 = 0, ext_vcpucontext = 0;
    unsigned long mfn, pfn;
    unsigned int prev_pc, this_pc;
    int verify = 0;
    int nraces = 0;

    /* The new domain's shared-info frame number. */
    unsigned long shared_info_frame;
    unsigned char shared_info_page[PAGE_SIZE]; /* saved contents from file */
    shared_info_any_t *old_shared_info = 
        (shared_info_any_t *)shared_info_page;
    shared_info_any_t *new_shared_info;

    /* A copy of the CPU context of the guest. */
    vcpu_guest_context_any_t ctxt;

    /* A table containing the type of each PFN (/not/ MFN!). */
    unsigned long *pfn_type = NULL;

    /* A table of MFNs to map in the current region */
    xen_pfn_t *region_mfn = NULL;

    /* Types of the pfns in the current region */
    unsigned long region_pfn_type[MAX_BATCH_SIZE];

    /* A copy of the pfn-to-mfn table frame list. */
    xen_pfn_t *p2m_frame_list = NULL;
    
    /* A temporary mapping of the guest's start_info page. */
    start_info_any_t *start_info;

    /* Our mapping of the current region (batch) */
    char *region_base;

    struct xc_mmu *mmu = NULL;

    /* used by debug verify code */
    unsigned long buf[PAGE_SIZE/sizeof(unsigned long)];

    struct mmuext_op pin[MAX_PIN_BATCH];
    unsigned int nr_pins;

    uint64_t vcpumap = 1ULL;
    unsigned int max_vcpu_id = 0;
    int new_ctxt_format = 0;

    /* Magic frames in HVM guests: ioreqs and xenstore comms. */
    uint64_t magic_pfns[3]; /* ioreq_pfn, bufioreq_pfn, store_pfn */

    /* Buffer for holding HVM context */
    uint8_t *hvm_buf = NULL;

    /* For info only */
    nr_pfns = 0;

    DPRINTF("-->xc_domain_restore()\n");

    if ( read_exact(io_fd, &p2m_size, sizeof(unsigned long)) )
    {
        ERROR("read: p2m_size");
        goto out;
    }
    
    DPRINTF("xc_domain_restore start: p2m_size = %lx\n", p2m_size);
    
    if ( !get_platform_info(xc_handle, dom,
                            &max_mfn, &hvirt_start, &pt_levels, &guest_width) )
    {
        ERROR("Unable to get platform info.");
        return 1;
    }
    
    DPRINTF("platform info, max_mfn: %lx, hvirt_start %lx, pt_lvevel %x, 
guest_width %x\n",
                            max_mfn, hvirt_start, pt_levels, guest_width);
    
    /* The *current* word size of the guest isn't very interesting; for now
     * assume the guest will be the same as we are.  We'll fix that later
     * if we discover otherwise. */
    guest_width = sizeof(unsigned long);
    pt_levels = (guest_width == 8) ? 4 : (pt_levels == 2) ? 2 : 3; 
    
    if ( !hvm ) 
    {
        /* Load the p2m frame list, plus potential extended info chunk */
        p2m_frame_list = load_p2m_frame_list(
            io_fd, &pae_extended_cr3, &ext_vcpucontext);
        if ( !p2m_frame_list )
            goto out;

        /* Now that we know the word size, tell Xen about it */
        memset(&domctl, 0, sizeof(domctl));
        domctl.domain = dom;
        domctl.cmd    = XEN_DOMCTL_set_address_size;
        domctl.u.address_size.size = guest_width * 8;
        frc = do_domctl(xc_handle, &domctl);
        if ( frc != 0 )
        {
            ERROR("Unable to set guest address size.");
            goto out;
        }
    }

    /* We want zeroed memory so use calloc rather than malloc. */
    p2m        = calloc(p2m_size, sizeof(xen_pfn_t));
    pfn_type   = calloc(p2m_size, sizeof(unsigned long));

    region_mfn = xg_memalign(PAGE_SIZE, ROUNDUP(
                              MAX_BATCH_SIZE * sizeof(xen_pfn_t), PAGE_SHIFT));
    p2m_batch  = xg_memalign(PAGE_SIZE, ROUNDUP(
                              MAX_BATCH_SIZE * sizeof(xen_pfn_t), PAGE_SHIFT));

    if ( (p2m == NULL) || (pfn_type == NULL) ||
         (region_mfn == NULL) || (p2m_batch == NULL) )
    {
        ERROR("memory alloc failed");
        errno = ENOMEM;
        goto out;
    }
    
    DPRINTF("memory alloc success\n");
    
    memset(region_mfn, 0,
           ROUNDUP(MAX_BATCH_SIZE * sizeof(xen_pfn_t), PAGE_SHIFT)); 
    memset(p2m_batch, 0,
           ROUNDUP(MAX_BATCH_SIZE * sizeof(xen_pfn_t), PAGE_SHIFT)); 

    if ( lock_pages(region_mfn, sizeof(xen_pfn_t) * MAX_BATCH_SIZE) )
    {
        ERROR("Could not lock region_mfn");
        goto out;
    }

    if ( lock_pages(p2m_batch, sizeof(xen_pfn_t) * MAX_BATCH_SIZE) )
    {
        ERROR("Could not lock p2m_batch");
        goto out;
    }

    DPRINTF("lock regin_mfn and p2m_batch success\n");

    /* Get the domain's shared-info frame. */
    domctl.cmd = XEN_DOMCTL_getdomaininfo;
    domctl.domain = (domid_t)dom;
    if ( xc_domctl(xc_handle, &domctl) < 0 )
    {
        ERROR("Could not get information on new domain");
        goto out;
    }
    shared_info_frame = domctl.u.getdomaininfo.shared_info_frame;
    
    DPRINTF("shared_info_frame: 0x%lx\n", shared_info_frame);

    /* Mark all PFNs as invalid; we allocate on demand */
    for ( pfn = 0; pfn < p2m_size; pfn++ )
        p2m[pfn] = INVALID_P2M_ENTRY;

    DPRINTF("all PFNs are marked as invalid\n");

    mmu = xc_alloc_mmu_updates(xc_handle, dom);
    if ( mmu == NULL )
    {
        ERROR("Could not initialise for MMU updates");
        goto out;
    }

    DPRINTF("Reloading memory pages:   0%%\n");

    /*
     * Now simply read each saved frame into its new machine frame.
     * We uncanonicalise page tables as we go.
     */
    prev_pc = 0;

    n = m = 0;
    for ( ; ; )
    {
        int j, nr_mfns = 0; 

        this_pc = (n * 100) / p2m_size;
        if ( (this_pc - prev_pc) >= 5 )
        {
            PPRINTF("\b\b\b\b%3d%%", this_pc);
            prev_pc = this_pc;
        }

        if ( read_exact(io_fd, &j, sizeof(int)) )
        {
            ERROR("Error when reading batch size");
            goto out;
        }

        PPRINTF("batch %d\n",j);
        DPRINTF ("batch %d\n",j);

        if ( j == -1 )
        {
            verify = 1;
            DPRINTF("Entering page verify mode\n");
            continue;
        }

        if ( j == -2 )
        {
            new_ctxt_format = 1;
            if ( read_exact(io_fd, &max_vcpu_id, sizeof(int)) ||
                 (max_vcpu_id >= 64) ||
                 read_exact(io_fd, &vcpumap, sizeof(uint64_t)) )
            {
                ERROR("Error when reading max_vcpu_id");
                goto out;
            }
            continue;
        }

        if ( j == -3 )
        {
            uint64_t ident_pt;

            /* Skip padding 4 bytes then read the EPT identity PT location. */
            if ( read_exact(io_fd, &ident_pt, sizeof(uint32_t)) ||
                 read_exact(io_fd, &ident_pt, sizeof(uint64_t)) )
            {
                ERROR("error read the address of the EPT identity map");
                goto out;
            }

            xc_set_hvm_param(xc_handle, dom, HVM_PARAM_IDENT_PT, ident_pt);
            continue;
        }

        if ( j == -4 )
        {
            uint64_t vm86_tss;

            /* Skip padding 4 bytes then read the vm86 TSS location. */
            if ( read_exact(io_fd, &vm86_tss, sizeof(uint32_t)) ||
                 read_exact(io_fd, &vm86_tss, sizeof(uint64_t)) )
            {
                ERROR("error read the address of the vm86 TSS");
                goto out;
            }

            xc_set_hvm_param(xc_handle, dom, HVM_PARAM_VM86_TSS, vm86_tss);
            continue;
        }

        if ( j == -5 )
        {
            DPRINTF("xc_domain_restore start tmem\n");
            if ( xc_tmem_restore(xc_handle, dom, io_fd) )
            {
                ERROR("error reading/restoring tmem");
                goto out;
            }
            continue;
        }

        if ( j == -6 )
        {
            if ( xc_tmem_restore_extra(xc_handle, dom, io_fd) )
            {
                ERROR("error reading/restoring tmem extra");
                goto out;
            }
            continue;
        }

        if ( j == 0 )
            break;  /* our work here is done */

        if ( (j > MAX_BATCH_SIZE) || (j < 0) )
        {
            ERROR("Max batch size exceeded. Giving up.");
            goto out;
        }

        if ( read_exact(io_fd, region_pfn_type, j*sizeof(unsigned long)) )
        {
            ERROR("Error when reading region pfn types");
            goto out;
        }

        /* First pass for this batch: work out how much memory to alloc */
        nr_mfns = 0; 
        for ( i = 0; i < j; i++ )
        {
            unsigned long pfn, pagetype;
            pfn      = region_pfn_type[i] & ~XEN_DOMCTL_PFINFO_LTAB_MASK;
            pagetype = region_pfn_type[i] &  XEN_DOMCTL_PFINFO_LTAB_MASK;

            if ( (pagetype != XEN_DOMCTL_PFINFO_XTAB) && 
                 (p2m[pfn] == INVALID_P2M_ENTRY) )
            {
                /* Have a live PFN which hasn't had an MFN allocated */
                p2m_batch[nr_mfns++] = pfn; 
                p2m[pfn]--;
            }
        } 

        DPRINTF("nr_mfns: %d \n",nr_mfns);
        /* Now allocate a bunch of mfns for this batch */
        if ( nr_mfns &&
             (xc_domain_memory_populate_physmap(xc_handle, dom, nr_mfns, 0,
                                                0, p2m_batch) != 0) )
        { 
            ERROR("Failed to allocate memory for batch.!\n"); 
            errno = ENOMEM;
            goto out;
        }

        /* Second pass for this batch: update p2m[] and region_mfn[] */
        nr_mfns = 0; 
        for ( i = 0; i < j; i++ )
        {
            unsigned long pfn, pagetype;
            pfn      = region_pfn_type[i] & ~XEN_DOMCTL_PFINFO_LTAB_MASK;
            pagetype = region_pfn_type[i] &  XEN_DOMCTL_PFINFO_LTAB_MASK;

            if ( pagetype == XEN_DOMCTL_PFINFO_XTAB )
                region_mfn[i] = ~0UL; /* map will fail but we don't care */
            else 
            {
                if ( p2m[pfn] == (INVALID_P2M_ENTRY-1) )
                {
                    /* We just allocated a new mfn above; update p2m */
                    p2m[pfn] = p2m_batch[nr_mfns++]; 
                    nr_pfns++; 
                }

                /* setup region_mfn[] for batch map.
                 * For HVM guests, this interface takes PFNs, not MFNs */
                region_mfn[i] = hvm ? pfn : p2m[pfn]; 
            }
        } 

        /* Map relevant mfns */
        region_base = xc_map_foreign_batch(
            xc_handle, dom, PROT_WRITE, region_mfn, j);

        if ( region_base == NULL )
        {
            ERROR("map batch failed");
            goto out;
        }

        for ( i = 0; i < j; i++ )
        {
            void *page;
            unsigned long pagetype;

            pfn      = region_pfn_type[i] & ~XEN_DOMCTL_PFINFO_LTAB_MASK;
            pagetype = region_pfn_type[i] &  XEN_DOMCTL_PFINFO_LTAB_MASK;

            if ( pagetype == XEN_DOMCTL_PFINFO_XTAB )
                /* a bogus/unmapped page: skip it */
                continue;

            if ( pfn > p2m_size )
            {
                ERROR("pfn out of range");
                goto out;
            }

            pfn_type[pfn] = pagetype;

            mfn = p2m[pfn];

            /* In verify mode, we use a copy; otherwise we work in place */
            page = verify ? (void *)buf : (region_base + i*PAGE_SIZE);

            if ( read_exact(io_fd, page, PAGE_SIZE) )
            {
                ERROR("Error when reading page (type was %lx)", pagetype);
                goto out;
            }

            pagetype &= XEN_DOMCTL_PFINFO_LTABTYPE_MASK;

            if ( (pagetype >= XEN_DOMCTL_PFINFO_L1TAB) && 
                 (pagetype <= XEN_DOMCTL_PFINFO_L4TAB) )
            {
                /*
                ** A page table page - need to 'uncanonicalize' it, i.e.
                ** replace all the references to pfns with the corresponding
                ** mfns for the new domain.
                **
                ** On PAE we need to ensure that PGDs are in MFNs < 4G, and
                ** so we may need to update the p2m after the main loop.
                ** Hence we defer canonicalization of L1s until then.
                */
                if ((pt_levels != 3) ||
                    pae_extended_cr3 ||
                    (pagetype != XEN_DOMCTL_PFINFO_L1TAB)) {
                    DPRINTF("call uncanonicalize_pagetable \n");
                    if (!uncanonicalize_pagetable(xc_handle, dom, 
                                                  pagetype, page)) {
                        /*
                        ** Failing to uncanonicalize a page table can be ok
                        ** under live migration since the pages type may have
                        ** changed by now (and we'll get an update later).
                        */
                        DPRINTF("PT L%ld race on pfn=%08lx mfn=%08lx\n",
                                pagetype >> 28, pfn, mfn);
                        nraces++;
                        continue;
                    } 
                }
            }
            else if ( pagetype != XEN_DOMCTL_PFINFO_NOTAB )
            {
                ERROR("Bogus page type %lx page table is out of range: "
                    "i=%d p2m_size=%lu", pagetype, i, p2m_size);
                goto out;

            }

            if ( verify )
            {
                int res = memcmp(buf, (region_base + i*PAGE_SIZE), PAGE_SIZE);
                if ( res )
                {
                    int v;

                    DPRINTF("************** pfn=%lx type=%lx gotcs=%08lx "
                            "actualcs=%08lx\n", pfn, pfn_type[pfn],
                            csum_page(region_base + i*PAGE_SIZE),
                            csum_page(buf));

                    for ( v = 0; v < 4; v++ )
                    {
                        unsigned long *p = (unsigned long *)
                            (region_base + i*PAGE_SIZE);
                        if ( buf[v] != p[v] )
                            DPRINTF("    %d: %08lx %08lx\n", v, buf[v], p[v]);
                    }
                }
            }

            if ( !hvm &&
                 xc_add_mmu_update(xc_handle, mmu,
                                   (((unsigned long long)mfn) << PAGE_SHIFT)
                                   | MMU_MACHPHYS_UPDATE, pfn) )
            {
                ERROR("failed machpys update mfn=%lx pfn=%lx", mfn, pfn);
                goto out;
            }
        } /* end of 'batch' for loop */

        munmap(region_base, j*PAGE_SIZE);
        n+= j; /* crude stats */

        /* 
         * Discard cache for portion of file read so far up to last
         *  page boundary every 16MB or so.
         */
        m += j;
        if ( m > MAX_PAGECACHE_USAGE )
        {
            discard_file_cache(io_fd, 0 /* no flush */);
            m = 0;
        }
    }

    /*
     * Ensure we flush all machphys updates before potential PAE-specific
     * reallocations below.
     */
    if ( !hvm && xc_flush_mmu_updates(xc_handle, mmu) )
    {
        ERROR("Error doing flush_mmu_updates()");
        goto out;
    }

    DPRINTF("Received all pages (%d races)\n", nraces);

    if ( hvm ) 
    {
        uint32_t rec_len;

        /* Set HVM-specific parameters */
        if ( read_exact(io_fd, magic_pfns, sizeof(magic_pfns)) )
        {
            ERROR("error reading magic page addresses");
            goto out;
        }
        
        /* These comms pages need to be zeroed at the start of day */
        if ( xc_clear_domain_page(xc_handle, dom, magic_pfns[0]) ||
             xc_clear_domain_page(xc_handle, dom, magic_pfns[1]) ||
             xc_clear_domain_page(xc_handle, dom, magic_pfns[2]) )
        {
            ERROR("error zeroing magic pages");
            goto out;
        }
                
        if ( (frc = xc_set_hvm_param(xc_handle, dom, 
                                     HVM_PARAM_IOREQ_PFN, magic_pfns[0]))
             || (frc = xc_set_hvm_param(xc_handle, dom, 
                                        HVM_PARAM_BUFIOREQ_PFN, magic_pfns[1]))
             || (frc = xc_set_hvm_param(xc_handle, dom, 
                                        HVM_PARAM_STORE_PFN, magic_pfns[2]))
             || (frc = xc_set_hvm_param(xc_handle, dom, 
                                        HVM_PARAM_PAE_ENABLED, pae))
             || (frc = xc_set_hvm_param(xc_handle, dom, 
                                        HVM_PARAM_STORE_EVTCHN,
                                        store_evtchn)) )
        {
            ERROR("error setting HVM params: %i", frc);
            goto out;
        }
        *store_mfn = magic_pfns[2];

        /* Read HVM context */
        if ( read_exact(io_fd, &rec_len, sizeof(uint32_t)) )
        {
            ERROR("error read hvm context size!\n");
            goto out;
        }
        
        hvm_buf = malloc(rec_len);
        if ( hvm_buf == NULL )
        {
            ERROR("memory alloc for hvm context buffer failed");
            errno = ENOMEM;
            goto out;
        }
        
        if ( read_exact(io_fd, hvm_buf, rec_len) )
        {
            ERROR("error loading the HVM context");
            goto out;
        }
        
        frc = xc_domain_hvm_setcontext(xc_handle, dom, hvm_buf, rec_len);
        if ( frc )
        {
            ERROR("error setting the HVM context");
            goto out;
        }

        /* HVM success! */
        rc = 0;
        goto out;
    }

    /* Non-HVM guests only from here on */

    if ( (pt_levels == 3) && !pae_extended_cr3 )
    {
        /*
        ** XXX SMH on PAE we need to ensure PGDs are in MFNs < 4G. This
        ** is a little awkward and involves (a) finding all such PGDs and
        ** replacing them with 'lowmem' versions; (b) upating the p2m[]
        ** with the new info; and (c) canonicalizing all the L1s using the
        ** (potentially updated) p2m[].
        **
        ** This is relatively slow (and currently involves two passes through
        ** the pfn_type[] array), but at least seems to be correct. May wish
        ** to consider more complex approaches to optimize this later.
        */

        int j, k;
        
        /* First pass: find all L3TABs current in > 4G mfns and get new mfns */
        for ( i = 0; i < p2m_size; i++ )
        {
            if ( ((pfn_type[i] & XEN_DOMCTL_PFINFO_LTABTYPE_MASK) ==
                  XEN_DOMCTL_PFINFO_L3TAB) &&
                 (p2m[i] > 0xfffffUL) )
            {
                unsigned long new_mfn;
                uint64_t l3ptes[4];
                uint64_t *l3tab;

                l3tab = (uint64_t *)
                    xc_map_foreign_range(xc_handle, dom, PAGE_SIZE,
                                         PROT_READ, p2m[i]);

                for ( j = 0; j < 4; j++ )
                    l3ptes[j] = l3tab[j];

                munmap(l3tab, PAGE_SIZE);

                new_mfn = xc_make_page_below_4G(xc_handle, dom, p2m[i]);
                if ( !new_mfn )
                {
                    ERROR("Couldn't get a page below 4GB :-(");
                    goto out;
                }

                p2m[i] = new_mfn;
                if ( xc_add_mmu_update(xc_handle, mmu,
                                       (((unsigned long long)new_mfn)
                                        << PAGE_SHIFT) |
                                       MMU_MACHPHYS_UPDATE, i) )
                {
                    ERROR("Couldn't m2p on PAE root pgdir");
                    goto out;
                }

                l3tab = (uint64_t *)
                    xc_map_foreign_range(xc_handle, dom, PAGE_SIZE,
                                         PROT_READ | PROT_WRITE, p2m[i]);

                for ( j = 0; j < 4; j++ )
                    l3tab[j] = l3ptes[j];

                munmap(l3tab, PAGE_SIZE);
            }
        }

        /* Second pass: find all L1TABs and uncanonicalize them */
        j = 0;

        for ( i = 0; i < p2m_size; i++ )
        {
            if ( ((pfn_type[i] & XEN_DOMCTL_PFINFO_LTABTYPE_MASK) ==
                  XEN_DOMCTL_PFINFO_L1TAB) )
            {
                region_mfn[j] = p2m[i];
                j++;
            }

            if ( (i == (p2m_size-1)) || (j == MAX_BATCH_SIZE) )
            {
                region_base = xc_map_foreign_batch(
                    xc_handle, dom, PROT_READ | PROT_WRITE, region_mfn, j);
                if ( region_base == NULL )
                {
                    ERROR("map batch failed");
                    goto out;
                }

                for ( k = 0; k < j; k++ )
                {
                    if ( !uncanonicalize_pagetable(
                        xc_handle, dom, XEN_DOMCTL_PFINFO_L1TAB,
                        region_base + k*PAGE_SIZE) )
                    {
                        ERROR("failed uncanonicalize pt!");
                        goto out;
                    }
                }

                munmap(region_base, j*PAGE_SIZE);
                j = 0;
            }
        }

        if ( xc_flush_mmu_updates(xc_handle, mmu) )
        {
            ERROR("Error doing xc_flush_mmu_updates()");
            goto out;
        }
    }

    /*
     * Pin page tables. Do this after writing to them as otherwise Xen
     * will barf when doing the type-checking.
     */
    nr_pins = 0;
    for ( i = 0; i < p2m_size; i++ )
    {
        if ( (pfn_type[i] & XEN_DOMCTL_PFINFO_LPINTAB) == 0 )
            continue;

        switch ( pfn_type[i] & XEN_DOMCTL_PFINFO_LTABTYPE_MASK )
        {
        case XEN_DOMCTL_PFINFO_L1TAB:
            pin[nr_pins].cmd = MMUEXT_PIN_L1_TABLE;
            break;

        case XEN_DOMCTL_PFINFO_L2TAB:
            pin[nr_pins].cmd = MMUEXT_PIN_L2_TABLE;
            break;

        case XEN_DOMCTL_PFINFO_L3TAB:
            pin[nr_pins].cmd = MMUEXT_PIN_L3_TABLE;
            break;

        case XEN_DOMCTL_PFINFO_L4TAB:
            pin[nr_pins].cmd = MMUEXT_PIN_L4_TABLE;
            break;

        default:
            continue;
        }

        pin[nr_pins].arg1.mfn = p2m[i];
        nr_pins++;

        /* Batch full? Then flush. */
        if ( nr_pins == MAX_PIN_BATCH )
        {
            if ( xc_mmuext_op(xc_handle, pin, nr_pins, dom) < 0 )
            {
                ERROR("Failed to pin batch of %d page tables", nr_pins);
                goto out;
            }
            nr_pins = 0;
        }
    }

    /* Flush final partial batch. */
    if ( (nr_pins != 0) && (xc_mmuext_op(xc_handle, pin, nr_pins, dom) < 0) )
    {
        ERROR("Failed to pin batch of %d page tables", nr_pins);
        goto out;
    }

    DPRINTF("\b\b\b\b100%%\n");
    DPRINTF("Memory reloaded (%ld pages)\n", nr_pfns);

    /* Get the list of PFNs that are not in the psuedo-phys map */
    {
        unsigned int count = 0;
        unsigned long *pfntab;
        int nr_frees;

        if ( read_exact(io_fd, &count, sizeof(count)) ||
             (count > (1U << 28)) ) /* up to 1TB of address space */
        {
            ERROR("Error when reading pfn count (= %u)", count);
            goto out;
        }

        if ( !(pfntab = malloc(sizeof(unsigned long) * count)) )
        {
            ERROR("Out of memory");
            goto out;
        }

        if ( read_exact(io_fd, pfntab, sizeof(unsigned long)*count) )
        {
            ERROR("Error when reading pfntab");
            goto out;
        }

        nr_frees = 0; 
        for ( i = 0; i < count; i++ )
        {
            unsigned long pfn = pfntab[i];

            if ( p2m[pfn] != INVALID_P2M_ENTRY )
            {
                /* pfn is not in physmap now, but was at some point during 
                   the save/migration process - need to free it */
                pfntab[nr_frees++] = p2m[pfn];
                p2m[pfn]  = INVALID_P2M_ENTRY; /* not in pseudo-physical map */
            }
        }

        if ( nr_frees > 0 )
        {
            struct xen_memory_reservation reservation = {
                .nr_extents   = nr_frees,
                .extent_order = 0,
                .domid        = dom
            };
            set_xen_guest_handle(reservation.extent_start, pfntab);

            if ( (frc = xc_memory_op(xc_handle, XENMEM_decrease_reservation,
                                     &reservation)) != nr_frees )
            {
                ERROR("Could not decrease reservation : %d", frc);
                goto out;
            }
            else
                DPRINTF("Decreased reservation by %d pages\n", count);
        }
    }

    if ( lock_pages(&ctxt, sizeof(ctxt)) )
    {
        ERROR("Unable to lock ctxt");
        return 1;
    }

    for ( i = 0; i <= max_vcpu_id; i++ )
    {
        if ( !(vcpumap & (1ULL << i)) )
            continue;

        if ( read_exact(io_fd, &ctxt, ((guest_width == 8)
                                       ? sizeof(ctxt.x64)
                                       : sizeof(ctxt.x32))) )
        {
            ERROR("Error when reading ctxt %d", i);
            goto out;
        }

        if ( !new_ctxt_format )
            SET_FIELD(&ctxt, flags, GET_FIELD(&ctxt, flags) | VGCF_online);

        if ( i == 0 )
        {
            /*
             * Uncanonicalise the suspend-record frame number and poke
             * resume record.
             */
            pfn = GET_FIELD(&ctxt, user_regs.edx);
            if ( (pfn >= p2m_size) ||
                 (pfn_type[pfn] != XEN_DOMCTL_PFINFO_NOTAB) )
            {
                ERROR("Suspend record frame number is bad");
                goto out;
            }
            mfn = p2m[pfn];
            SET_FIELD(&ctxt, user_regs.edx, mfn);
            start_info = xc_map_foreign_range(
                xc_handle, dom, PAGE_SIZE, PROT_READ | PROT_WRITE, mfn);
            SET_FIELD(start_info, nr_pages, p2m_size);
            SET_FIELD(start_info, shared_info, shared_info_frame<<PAGE_SHIFT);
            SET_FIELD(start_info, flags, 0);
            *store_mfn = p2m[GET_FIELD(start_info, store_mfn)];
            SET_FIELD(start_info, store_mfn, *store_mfn);
            SET_FIELD(start_info, store_evtchn, store_evtchn);
            *console_mfn = p2m[GET_FIELD(start_info, console.domU.mfn)];
            SET_FIELD(start_info, console.domU.mfn, *console_mfn);
            SET_FIELD(start_info, console.domU.evtchn, console_evtchn);
            munmap(start_info, PAGE_SIZE);
        }
        /* Uncanonicalise each GDT frame number. */
        if ( GET_FIELD(&ctxt, gdt_ents) > 8192 )
        {
            ERROR("GDT entry count out of range");
            goto out;
        }

        for ( j = 0; (512*j) < GET_FIELD(&ctxt, gdt_ents); j++ )
        {
            pfn = GET_FIELD(&ctxt, gdt_frames[j]);
            if ( (pfn >= p2m_size) ||
                 (pfn_type[pfn] != XEN_DOMCTL_PFINFO_NOTAB) )
            {
                ERROR("GDT frame number %i (0x%lx) is bad", 
                      j, (unsigned long)pfn);
                goto out;
            }
            SET_FIELD(&ctxt, gdt_frames[j], p2m[pfn]);
        }
        /* Uncanonicalise the page table base pointer. */
        pfn = UNFOLD_CR3(GET_FIELD(&ctxt, ctrlreg[3]));

        if ( pfn >= p2m_size )
        {
            ERROR("PT base is bad: pfn=%lu p2m_size=%lu type=%08lx",
                  pfn, p2m_size, pfn_type[pfn]);
            goto out;
        }

        if ( (pfn_type[pfn] & XEN_DOMCTL_PFINFO_LTABTYPE_MASK) !=
             ((unsigned long)pt_levels<<XEN_DOMCTL_PFINFO_LTAB_SHIFT) )
        {
            ERROR("PT base is bad. pfn=%lu nr=%lu type=%08lx %08lx",
                  pfn, p2m_size, pfn_type[pfn],
                  (unsigned long)pt_levels<<XEN_DOMCTL_PFINFO_LTAB_SHIFT);
            goto out;
        }
        SET_FIELD(&ctxt, ctrlreg[3], FOLD_CR3(p2m[pfn]));

        /* Guest pagetable (x86/64) stored in otherwise-unused CR1. */
        if ( (pt_levels == 4) && (ctxt.x64.ctrlreg[1] & 1) )
        {
            pfn = UNFOLD_CR3(ctxt.x64.ctrlreg[1] & ~1);
            if ( pfn >= p2m_size )
            {
                ERROR("User PT base is bad: pfn=%lu p2m_size=%lu",
                      pfn, p2m_size);
                goto out;
            }
            if ( (pfn_type[pfn] & XEN_DOMCTL_PFINFO_LTABTYPE_MASK) !=
                 ((unsigned long)pt_levels<<XEN_DOMCTL_PFINFO_LTAB_SHIFT) )
            {
                ERROR("User PT base is bad. pfn=%lu nr=%lu type=%08lx %08lx",
                      pfn, p2m_size, pfn_type[pfn],
                      (unsigned long)pt_levels<<XEN_DOMCTL_PFINFO_LTAB_SHIFT);
                goto out;
            }
            ctxt.x64.ctrlreg[1] = FOLD_CR3(p2m[pfn]);
        }
        domctl.cmd = XEN_DOMCTL_setvcpucontext;
        domctl.domain = (domid_t)dom;
        domctl.u.vcpucontext.vcpu = i;
        set_xen_guest_handle(domctl.u.vcpucontext.ctxt, &ctxt.c);
        frc = xc_domctl(xc_handle, &domctl);
        if ( frc != 0 )
        {
            ERROR("Couldn't build vcpu%d", i);
            goto out;
        }

        if ( !ext_vcpucontext )
            continue;
        if ( read_exact(io_fd, &domctl.u.ext_vcpucontext, 128) ||
             (domctl.u.ext_vcpucontext.vcpu != i) )
        {
            ERROR("Error when reading extended ctxt %d", i);
            goto out;
        }
        domctl.cmd = XEN_DOMCTL_set_ext_vcpucontext;
        domctl.domain = dom;
        frc = xc_domctl(xc_handle, &domctl);
        if ( frc != 0 )
        {
            ERROR("Couldn't set extended vcpu%d info\n", i);
            goto out;
        }
    }

    if ( read_exact(io_fd, shared_info_page, PAGE_SIZE) )
    {
        ERROR("Error when reading shared info page");
        goto out;
    }

    /* Restore contents of shared-info page. No checking needed. */
    new_shared_info = xc_map_foreign_range(
        xc_handle, dom, PAGE_SIZE, PROT_WRITE, shared_info_frame);

    /* restore saved vcpu_info and arch specific info */
    MEMCPY_FIELD(new_shared_info, old_shared_info, vcpu_info);
    MEMCPY_FIELD(new_shared_info, old_shared_info, arch);

    /* clear any pending events and the selector */
    MEMSET_ARRAY_FIELD(new_shared_info, evtchn_pending, 0);
    for ( i = 0; i < MAX_VIRT_CPUS; i++ )
            SET_FIELD(new_shared_info, vcpu_info[i].evtchn_pending_sel, 0);

    /* mask event channels */
    MEMSET_ARRAY_FIELD(new_shared_info, evtchn_mask, 0xff);

    /* leave wallclock time. set by hypervisor */
    munmap(new_shared_info, PAGE_SIZE);

    /* Uncanonicalise the pfn-to-mfn table frame-number list. */
    for ( i = 0; i < P2M_FL_ENTRIES; i++ )
    {
        pfn = p2m_frame_list[i];
        if ( (pfn >= p2m_size) || (pfn_type[pfn] != XEN_DOMCTL_PFINFO_NOTAB) )
        {
            ERROR("PFN-to-MFN frame number %i (%#lx) is bad", i, pfn);
            goto out;
        }
        p2m_frame_list[i] = p2m[pfn];
    }

    /* Copy the P2M we've constructed to the 'live' P2M */
    if ( !(live_p2m = xc_map_foreign_batch(xc_handle, dom, PROT_WRITE,
                                           p2m_frame_list, P2M_FL_ENTRIES)) )
    {
        ERROR("Couldn't map p2m table");
        goto out;
    }

    /* If the domain we're restoring has a different word size to ours,
     * we need to adjust the live_p2m assignment appropriately */
    if ( guest_width > sizeof (xen_pfn_t) )
        for ( i = p2m_size - 1; i >= 0; i-- )
            ((int64_t *)live_p2m)[i] = (long)p2m[i];
    else if ( guest_width < sizeof (xen_pfn_t) )
        for ( i = 0; i < p2m_size; i++ )   
            ((uint32_t *)live_p2m)[i] = p2m[i];
    else
        memcpy(live_p2m, p2m, p2m_size * sizeof(xen_pfn_t));
    munmap(live_p2m, P2M_FL_ENTRIES * PAGE_SIZE);

    DPRINTF("Domain ready to be built.\n");
    rc = 0;

 out:
    if ( (rc != 0) && (dom != 0) )
        xc_domain_destroy(xc_handle, dom);
    free(mmu);
    free(p2m);
    free(pfn_type);
    free(hvm_buf);

    /* discard cache for save file  */
    discard_file_cache(io_fd, 1 /*flush*/);

    DPRINTF("Restore exit with rc=%d\n", rc);
    
    return rc;
}

/******************************************************************************
 * xc_linux_save.c
 *
 * Save the state of a running Linux session.
 *
 * Copyright (c) 2003, K A Fraser.
 */

#include <inttypes.h>
#include <time.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/time.h>

#include "xc_private.h"
#include "xc_dom.h"
#include "xg_private.h"
#include "xg_save_restore.h"

#include <xen/hvm/params.h>
#include "xc_e820.h"

/*
** Default values for important tuning parameters. Can override by passing
** non-zero replacement values to xc_domain_save().
**
** XXX SMH: should consider if want to be able to override MAX_MBIT_RATE too.
**
*/
#define DEF_MAX_ITERS   29   /* limit us to 30 times round loop   */
#define DEF_MAX_FACTOR   3   /* never send more than 3x p2m_size  */

/* max mfn of the whole machine */
static unsigned long max_mfn;

/* virtual starting address of the hypervisor */
static unsigned long hvirt_start;

/* #levels of page tables used by the current guest */
static unsigned int pt_levels;

/* HVM: shared-memory bitmaps for getting log-dirty bits from qemu-dm */
static unsigned long *qemu_bitmaps[2];
static int qemu_active;
static int qemu_non_active;

/* number of pfns this guest has (i.e. number of entries in the P2M) */
static unsigned long p2m_size;

/* Live mapping of the table mapping each PFN to its current MFN. */
static xen_pfn_t *live_p2m = NULL;

/* Live mapping of system MFN to PFN table. */
static xen_pfn_t *live_m2p = NULL;
static unsigned long m2p_mfn0;

/* Address size of the guest */
unsigned int guest_width;

/* grep fodder: machine_to_phys */

#define mfn_to_pfn(_mfn)  (live_m2p[(_mfn)])

#define pfn_to_mfn(_pfn)                                            \
  ((xen_pfn_t) ((guest_width==8)                                    \
                ? (((uint64_t *)live_p2m)[(_pfn)])                  \
                : ((((uint32_t *)live_p2m)[(_pfn)]) == 0xffffffffU  \
                   ? (-1UL) : (((uint32_t *)live_p2m)[(_pfn)]))))

/*
 * Returns TRUE if the given machine frame number has a unique mapping
 * in the guest's pseudophysical map.
 */
#define MFN_IS_IN_PSEUDOPHYS_MAP(_mfn)          \
    (((_mfn) < (max_mfn)) &&                    \
     ((mfn_to_pfn(_mfn) < (p2m_size)) &&        \
      (pfn_to_mfn(mfn_to_pfn(_mfn)) == (_mfn))))

/*
** During (live) save/migrate, we maintain a number of bitmaps to track
** which pages we have to send, to fixup, and to skip.
*/

#define BITS_PER_LONG (sizeof(unsigned long) * 8)
#define BITS_TO_LONGS(bits) (((bits)+BITS_PER_LONG-1)/BITS_PER_LONG)
#define BITMAP_SIZE   (BITS_TO_LONGS(p2m_size) * sizeof(unsigned long))

#define BITMAP_ENTRY(_nr,_bmap) \
   ((volatile unsigned long *)(_bmap))[(_nr)/BITS_PER_LONG]

#define BITMAP_SHIFT(_nr) ((_nr) % BITS_PER_LONG)

static inline int test_bit (int nr, volatile void * addr)
{
    return (BITMAP_ENTRY(nr, addr) >> BITMAP_SHIFT(nr)) & 1;
}

static inline void clear_bit (int nr, volatile void * addr)
{
    BITMAP_ENTRY(nr, addr) &= ~(1UL << BITMAP_SHIFT(nr));
}

static inline void set_bit ( int nr, volatile void * addr)
{
    BITMAP_ENTRY(nr, addr) |= (1UL << BITMAP_SHIFT(nr));
}

/* Returns the hamming weight (i.e. the number of bits set) in a N-bit word */
static inline unsigned int hweight32(unsigned int w)
{
    unsigned int res = (w & 0x55555555) + ((w >> 1) & 0x55555555);
    res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
    res = (res & 0x0F0F0F0F) + ((res >> 4) & 0x0F0F0F0F);
    res = (res & 0x00FF00FF) + ((res >> 8) & 0x00FF00FF);
    return (res & 0x0000FFFF) + ((res >> 16) & 0x0000FFFF);
}

static inline int count_bits ( int nr, volatile void *addr)
{
    int i, count = 0;
    volatile unsigned long *p = (volatile unsigned long *)addr;
    /* We know that the array is padded to unsigned long. */
    for ( i = 0; i < (nr / (sizeof(unsigned long)*8)); i++, p++ )
        count += hweight32(*p);
    return count;
}

static uint64_t tv_to_us(struct timeval *new)
{
    return (new->tv_sec * 1000000) + new->tv_usec;
}

static uint64_t llgettimeofday(void)
{
    struct timeval now;
    gettimeofday(&now, NULL);
    return tv_to_us(&now);
}

static uint64_t tv_delta(struct timeval *new, struct timeval *old)
{
    return (((new->tv_sec - old->tv_sec)*1000000) +
            (new->tv_usec - old->tv_usec));
}

static int noncached_write(int fd, int live, void *buffer, int len) 
{
    static int write_count = 0;
    int rc = (write_exact(fd, buffer, len) == 0) ? len : -1;

    write_count += len;
    if ( write_count >= (MAX_PAGECACHE_USAGE * PAGE_SIZE) )
    {
        /* Time to discard cache - dont care if this fails */
        discard_file_cache(fd, 0 /* no flush */);
        write_count = 0;
    }

    return rc;
}

#ifdef ADAPTIVE_SAVE

/*
** We control the rate at which we transmit (or save) to minimize impact
** on running domains (including the target if we're doing live migrate).
*/

#define MAX_MBIT_RATE    500      /* maximum transmit rate for migrate */
#define START_MBIT_RATE  100      /* initial transmit rate for migrate */

/* Scaling factor to convert between a rate (in Mb/s) and time (in usecs) */
#define RATE_TO_BTU      781250

/* Amount in bytes we allow ourselves to send in a burst */
#define BURST_BUDGET (100*1024)

/* We keep track of the current and previous transmission rate */
static int mbit_rate, ombit_rate = 0;

/* Have we reached the maximum transmission rate? */
#define RATE_IS_MAX() (mbit_rate == MAX_MBIT_RATE)

static inline void initialize_mbit_rate()
{
    mbit_rate = START_MBIT_RATE;
}

static int ratewrite(int io_fd, int live, void *buf, int n)
{
    static int budget = 0;
    static int burst_time_us = -1;
    static struct timeval last_put = { 0 };
    struct timeval now;
    struct timespec delay;
    long long delta;

    if ( START_MBIT_RATE == 0 )
        return noncached_write(io_fd, live, buf, n);

    budget -= n;
    if ( budget < 0 )
    {
        if ( mbit_rate != ombit_rate )
        {
            burst_time_us = RATE_TO_BTU / mbit_rate;
            ombit_rate = mbit_rate;
            DPRINTF("rate limit: %d mbit/s burst budget %d slot time %d\n",
                    mbit_rate, BURST_BUDGET, burst_time_us);
        }
        if ( last_put.tv_sec == 0 )
        {
            budget += BURST_BUDGET;
            gettimeofday(&last_put, NULL);
        }
        else
        {
            while ( budget < 0 )
            {
                gettimeofday(&now, NULL);
                delta = tv_delta(&now, &last_put);
                while ( delta > burst_time_us )
                {
                    budget += BURST_BUDGET;
                    last_put.tv_usec += burst_time_us;
                    if ( last_put.tv_usec > 1000000 )
                    {
                        last_put.tv_usec -= 1000000;
                        last_put.tv_sec++;
                    }
                    delta -= burst_time_us;
                }
                if ( budget > 0 )
                    break;
                delay.tv_sec = 0;
                delay.tv_nsec = 1000 * (burst_time_us - delta);
                while ( delay.tv_nsec > 0 )
                    if ( nanosleep(&delay, &delay) == 0 )
                        break;
            }
        }
    }
    return noncached_write(io_fd, live, buf, n);
}

#else /* ! ADAPTIVE SAVE */

#define RATE_IS_MAX() (0)
#define ratewrite(_io_fd, _live, _buf, _n) noncached_write((_io_fd), (_live), 
(_buf), (_n))
#define initialize_mbit_rate()

#endif

static int print_stats(int xc_handle, uint32_t domid, int pages_sent,
                       xc_shadow_op_stats_t *stats, int print)
{
    static struct timeval wall_last;
    static long long      d0_cpu_last;
    static long long      d1_cpu_last;

    struct timeval        wall_now;
    long long             wall_delta;
    long long             d0_cpu_now, d0_cpu_delta;
    long long             d1_cpu_now, d1_cpu_delta;

    gettimeofday(&wall_now, NULL);

    d0_cpu_now = xc_domain_get_cpu_usage(xc_handle, 0, /* FIXME */ 0)/1000;
    d1_cpu_now = xc_domain_get_cpu_usage(xc_handle, domid, /* FIXME */ 0)/1000;

    if ( (d0_cpu_now == -1) || (d1_cpu_now == -1) )
        DPRINTF("ARRHHH!!\n");

    wall_delta = tv_delta(&wall_now,&wall_last)/1000;
    if ( wall_delta == 0 )
        wall_delta = 1;

    d0_cpu_delta = (d0_cpu_now - d0_cpu_last)/1000;
    d1_cpu_delta = (d1_cpu_now - d1_cpu_last)/1000;

    if ( print )
        DPRINTF("delta %lldms, dom0 %d%%, target %d%%, sent %dMb/s, "
                "dirtied %dMb/s %" PRId32 " pages\n",
                wall_delta,
                (int)((d0_cpu_delta*100)/wall_delta),
                (int)((d1_cpu_delta*100)/wall_delta),
                (int)((pages_sent*PAGE_SIZE)/(wall_delta*(1000/8))),
                (int)((stats->dirty_count*PAGE_SIZE)/(wall_delta*(1000/8))),
                stats->dirty_count);

#ifdef ADAPTIVE_SAVE
    if ( ((stats->dirty_count*PAGE_SIZE)/(wall_delta*(1000/8))) > mbit_rate )
    {
        mbit_rate = (int)((stats->dirty_count*PAGE_SIZE)/(wall_delta*(1000/8)))
            + 50;
        if ( mbit_rate > MAX_MBIT_RATE )
            mbit_rate = MAX_MBIT_RATE;
    }
#endif

    d0_cpu_last = d0_cpu_now;
    d1_cpu_last = d1_cpu_now;
    wall_last   = wall_now;

    return 0;
}


static int analysis_phase(int xc_handle, uint32_t domid, int p2m_size,
                          unsigned long *arr, int runs)
{
    long long start, now;
    xc_shadow_op_stats_t stats;
    int j;

    start = llgettimeofday();

    for ( j = 0; j < runs; j++ )
    {
        int i;

        xc_shadow_control(xc_handle, domid, XEN_DOMCTL_SHADOW_OP_CLEAN,
                          arr, p2m_size, NULL, 0, NULL);
        DPRINTF("#Flush\n");
        for ( i = 0; i < 40; i++ )
        {
            usleep(50000);
            now = llgettimeofday();
            xc_shadow_control(xc_handle, domid, XEN_DOMCTL_SHADOW_OP_PEEK,
                              NULL, 0, NULL, 0, &stats);
            DPRINTF("now= %lld faults= %"PRId32" dirty= %"PRId32"\n",
                    ((now-start)+500)/1000,
                    stats.fault_count, stats.dirty_count);
        }
    }

    return -1;
}


static int suspend_and_state(int (*suspend)(void), int xc_handle, int io_fd,
                             int dom, xc_dominfo_t *info)
{
    if ( !(*suspend)() )
    {
        ERROR("Suspend request failed");
        return -1;
    }

    if ( (xc_domain_getinfo(xc_handle, dom, 1, info) != 1) ||
         !info->shutdown || (info->shutdown_reason != SHUTDOWN_suspend) )
    {
        ERROR("Domain not in suspended state");
        return -1;
    }

    return 0;
}

/*
** Map the top-level page of MFNs from the guest. The guest might not have
** finished resuming from a previous restore operation, so we wait a while for
** it to update the MFN to a reasonable value.
*/
static void *map_frame_list_list(int xc_handle, uint32_t dom,
                                 shared_info_any_t *shinfo)
{
    int count = 100;
    void *p;
    uint64_t fll = GET_FIELD(shinfo, arch.pfn_to_mfn_frame_list_list);

    while ( count-- && (fll == 0) )
    {
        usleep(10000);
        fll = GET_FIELD(shinfo, arch.pfn_to_mfn_frame_list_list);
    }

    if ( fll == 0 )
    {
        ERROR("Timed out waiting for frame list updated.");
        return NULL;
    }

    p = xc_map_foreign_range(xc_handle, dom, PAGE_SIZE, PROT_READ, fll);
    if ( p == NULL )
        ERROR("Couldn't map p2m_frame_list_list (errno %d)", errno);

    return p;
}

/*
** During transfer (or in the state file), all page-table pages must be
** converted into a 'canonical' form where references to actual mfns
** are replaced with references to the corresponding pfns.
**
** This function performs the appropriate conversion, taking into account
** which entries do not require canonicalization (in particular, those
** entries which map the virtual address reserved for the hypervisor).
*/
static int canonicalize_pagetable(unsigned long type, unsigned long pfn,
                           const void *spage, void *dpage)
{

    int i, pte_last, xen_start, xen_end, race = 0; 
    uint64_t pte;

    /*
    ** We need to determine which entries in this page table hold
    ** reserved hypervisor mappings. This depends on the current
    ** page table type as well as the number of paging levels.
    */
    xen_start = xen_end = pte_last = PAGE_SIZE / ((pt_levels == 2) ? 4 : 8);

    if ( (pt_levels == 2) && (type == XEN_DOMCTL_PFINFO_L2TAB) )
        xen_start = (hvirt_start >> L2_PAGETABLE_SHIFT);

    if ( (pt_levels == 3) && (type == XEN_DOMCTL_PFINFO_L3TAB) )
        xen_start = L3_PAGETABLE_ENTRIES_PAE;

    /*
    ** In PAE only the L2 mapping the top 1GB contains Xen mappings.
    ** We can spot this by looking for the guest's mappingof the m2p.
    ** Guests must ensure that this check will fail for other L2s.
    */
    if ( (pt_levels == 3) && (type == XEN_DOMCTL_PFINFO_L2TAB) )
    {
        int hstart;
        uint64_t he;

        hstart = (hvirt_start >> L2_PAGETABLE_SHIFT_PAE) & 0x1ff;
        he = ((const uint64_t *) spage)[hstart];

        if ( ((he >> PAGE_SHIFT) & MFN_MASK_X86) == m2p_mfn0 )
        {
            /* hvirt starts with xen stuff... */
            xen_start = hstart;
        }
        else if ( hvirt_start != 0xf5800000 )
        {
            /* old L2s from before hole was shrunk... */
            hstart = (0xf5800000 >> L2_PAGETABLE_SHIFT_PAE) & 0x1ff;
            he = ((const uint64_t *) spage)[hstart];
            if ( ((he >> PAGE_SHIFT) & MFN_MASK_X86) == m2p_mfn0 )
                xen_start = hstart;
        }
    }

    if ( (pt_levels == 4) && (type == XEN_DOMCTL_PFINFO_L4TAB) )
    {
        /*
        ** XXX SMH: should compute these from hvirt_start (which we have)
        ** and hvirt_end (which we don't)
        */
        xen_start = 256;
        xen_end   = 272;
    }

    /* Now iterate through the page table, canonicalizing each PTE */
    for (i = 0; i < pte_last; i++ )
    {
        unsigned long pfn, mfn;

        if ( pt_levels == 2 )
            pte = ((const uint32_t*)spage)[i];
        else
            pte = ((const uint64_t*)spage)[i];

        if ( (i >= xen_start) && (i < xen_end) )
            pte = 0;

        if ( pte & _PAGE_PRESENT )
        {
            mfn = (pte >> PAGE_SHIFT) & MFN_MASK_X86;
            if ( !MFN_IS_IN_PSEUDOPHYS_MAP(mfn) )
            {
                /* This will happen if the type info is stale which
                   is quite feasible under live migration */
                pfn  = 0;  /* zap it - we'll retransmit this page later */
                /* XXX: We can't spot Xen mappings in compat-mode L2es 
                 * from 64-bit tools, but the only thing in them is the
                 * compat m2p, so we quietly zap them.  This doesn't
                 * count as a race, so don't report it. */
                if ( !(type == XEN_DOMCTL_PFINFO_L2TAB 
                       && sizeof (unsigned long) > guest_width) )
                     race = 1;  /* inform the caller; fatal if !live */ 
            }
            else
                pfn = mfn_to_pfn(mfn);

            pte &= ~MADDR_MASK_X86;
            pte |= (uint64_t)pfn << PAGE_SHIFT;

            /*
             * PAE guest L3Es can contain these flags when running on
             * a 64bit hypervisor. We zap these here to avoid any
             * surprise at restore time...
             */
            if ( (pt_levels == 3) &&
                 (type == XEN_DOMCTL_PFINFO_L3TAB) &&
                 (pte & (_PAGE_USER|_PAGE_RW|_PAGE_ACCESSED)) )
                pte &= ~(_PAGE_USER|_PAGE_RW|_PAGE_ACCESSED);
        }

        if ( pt_levels == 2 )
            ((uint32_t*)dpage)[i] = pte;
        else
            ((uint64_t*)dpage)[i] = pte;
    }

    return race;
}

static xen_pfn_t *xc_map_m2p(int xc_handle,
                                 unsigned long max_mfn,
                                 int prot)
{
    struct xen_machphys_mfn_list xmml;
    privcmd_mmap_entry_t *entries;
    unsigned long m2p_chunks, m2p_size;
    xen_pfn_t *m2p;
    xen_pfn_t *extent_start;
    int i;

    m2p = NULL;
    m2p_size   = M2P_SIZE(max_mfn);
    m2p_chunks = M2P_CHUNKS(max_mfn);

    xmml.max_extents = m2p_chunks;

    extent_start = calloc(m2p_chunks, sizeof(xen_pfn_t));
    if ( !extent_start )
    {
        ERROR("failed to allocate space for m2p mfns");
        goto err0;
    }
    set_xen_guest_handle(xmml.extent_start, extent_start);

    if ( xc_memory_op(xc_handle, XENMEM_machphys_mfn_list, &xmml) ||
         (xmml.nr_extents != m2p_chunks) )
    {
        ERROR("xc_get_m2p_mfns");
        goto err1;
    }

    entries = calloc(m2p_chunks, sizeof(privcmd_mmap_entry_t));
    if (entries == NULL)
    {
        ERROR("failed to allocate space for mmap entries");
        goto err1;
    }

    for ( i = 0; i < m2p_chunks; i++ )
        entries[i].mfn = extent_start[i];

    m2p = xc_map_foreign_ranges(xc_handle, DOMID_XEN,
                        m2p_size, prot, M2P_CHUNK_SIZE,
                        entries, m2p_chunks);
    if (m2p == NULL)
    {
        ERROR("xc_mmap_foreign_ranges failed");
        goto err2;
    }

    m2p_mfn0 = entries[0].mfn;

err2:
    free(entries);
err1:
    free(extent_start);

err0:
    return m2p;
}


static xen_pfn_t *map_and_save_p2m_table(int xc_handle, 
                                         int io_fd, 
                                         uint32_t dom,
                                         unsigned long p2m_size,
                                         shared_info_any_t *live_shinfo)
{
    vcpu_guest_context_any_t ctxt;

    /* Double and single indirect references to the live P2M table */
    void *live_p2m_frame_list_list = NULL;
    void *live_p2m_frame_list = NULL;

    /* Copies of the above. */
    xen_pfn_t *p2m_frame_list_list = NULL;
    xen_pfn_t *p2m_frame_list = NULL;

    /* The mapping of the live p2m table itself */
    xen_pfn_t *p2m = NULL;

    int i, success = 0;

    live_p2m_frame_list_list = map_frame_list_list(xc_handle, dom,
                                                   live_shinfo);
    if ( !live_p2m_frame_list_list )
        goto out;

    /* Get a local copy of the live_P2M_frame_list_list */
    if ( !(p2m_frame_list_list = malloc(PAGE_SIZE)) )
    {
        ERROR("Couldn't allocate p2m_frame_list_list array");
        goto out;
    }
    memcpy(p2m_frame_list_list, live_p2m_frame_list_list, PAGE_SIZE);

    /* Canonicalize guest's unsigned long vs ours */
    if ( guest_width > sizeof(unsigned long) )
        for ( i = 0; i < PAGE_SIZE/sizeof(unsigned long); i++ )
            if ( i < PAGE_SIZE/guest_width )
                p2m_frame_list_list[i] = ((uint64_t *)p2m_frame_list_list)[i];
            else
                p2m_frame_list_list[i] = 0;
    else if ( guest_width < sizeof(unsigned long) )
        for ( i = PAGE_SIZE/sizeof(unsigned long) - 1; i >= 0; i-- )
            p2m_frame_list_list[i] = ((uint32_t *)p2m_frame_list_list)[i];

    live_p2m_frame_list =
        xc_map_foreign_batch(xc_handle, dom, PROT_READ,
                             p2m_frame_list_list,
                             P2M_FLL_ENTRIES);
    if ( !live_p2m_frame_list )
    {
        ERROR("Couldn't map p2m_frame_list");
        goto out;
    }

    /* Get a local copy of the live_P2M_frame_list */
    if ( !(p2m_frame_list = malloc(P2M_TOOLS_FL_SIZE)) )
    {
        ERROR("Couldn't allocate p2m_frame_list array");
        goto out;
    }
    memset(p2m_frame_list, 0, P2M_TOOLS_FL_SIZE);
    memcpy(p2m_frame_list, live_p2m_frame_list, P2M_GUEST_FL_SIZE);

    /* Canonicalize guest's unsigned long vs ours */
    if ( guest_width > sizeof(unsigned long) )
        for ( i = 0; i < P2M_FL_ENTRIES; i++ )
            p2m_frame_list[i] = ((uint64_t *)p2m_frame_list)[i];
    else if ( guest_width < sizeof(unsigned long) )
        for ( i = P2M_FL_ENTRIES - 1; i >= 0; i-- )
            p2m_frame_list[i] = ((uint32_t *)p2m_frame_list)[i];


    /* Map all the frames of the pfn->mfn table. For migrate to succeed,
       the guest must not change which frames are used for this purpose.
       (its not clear why it would want to change them, and we'll be OK
       from a safety POV anyhow. */

    p2m = xc_map_foreign_batch(xc_handle, dom, PROT_READ,
                               p2m_frame_list,
                               P2M_FL_ENTRIES);
    if ( !p2m )
    {
        ERROR("Couldn't map p2m table");
        goto out;
    }
    live_p2m = p2m; /* So that translation macros will work */
    
    /* Canonicalise the pfn-to-mfn table frame-number list. */
    for ( i = 0; i < p2m_size; i += FPP )
    {
        if ( !MFN_IS_IN_PSEUDOPHYS_MAP(p2m_frame_list[i/FPP]) )
        {
            ERROR("Frame# in pfn-to-mfn frame list is not in pseudophys");
            ERROR("entry %d: p2m_frame_list[%ld] is 0x%"PRIx64", max 0x%lx",
                  i, i/FPP, (uint64_t)p2m_frame_list[i/FPP], max_mfn);
            if ( p2m_frame_list[i/FPP] < max_mfn ) 
            {
                ERROR("m2p[0x%"PRIx64"] = 0x%"PRIx64, 
                      (uint64_t)p2m_frame_list[i/FPP],
                      (uint64_t)live_m2p[p2m_frame_list[i/FPP]]);
                ERROR("p2m[0x%"PRIx64"] = 0x%"PRIx64, 
                      (uint64_t)live_m2p[p2m_frame_list[i/FPP]],
                      (uint64_t)p2m[live_m2p[p2m_frame_list[i/FPP]]]);

            }
            goto out;
        }
        p2m_frame_list[i/FPP] = mfn_to_pfn(p2m_frame_list[i/FPP]);
    }

    if ( xc_vcpu_getcontext(xc_handle, dom, 0, &ctxt) )
    {
        ERROR("Could not get vcpu context");
        goto out;
    }

    /*
     * Write an extended-info structure to inform the restore code that
     * a PAE guest understands extended CR3 (PDPTs above 4GB). Turns off
     * slow paths in the restore code.
     */
    {
        unsigned long signature = ~0UL;
        uint32_t chunk1_sz = ((guest_width==8) 
                              ? sizeof(ctxt.x64) 
                              : sizeof(ctxt.x32));
        uint32_t chunk2_sz = 0;
        uint32_t tot_sz    = (chunk1_sz + 8) + (chunk2_sz + 8);
        if ( write_exact(io_fd, &signature, sizeof(signature)) ||
             write_exact(io_fd, &tot_sz, sizeof(tot_sz)) ||
             write_exact(io_fd, "vcpu", 4) ||
             write_exact(io_fd, &chunk1_sz, sizeof(chunk1_sz)) ||
             write_exact(io_fd, &ctxt, chunk1_sz) ||
             write_exact(io_fd, "extv", 4) ||
             write_exact(io_fd, &chunk2_sz, sizeof(chunk2_sz)) )
        {
            PERROR("write: extended info");
            goto out;
        }
    }

    if ( write_exact(io_fd, p2m_frame_list, 
                     P2M_FL_ENTRIES * sizeof(xen_pfn_t)) )
    {
        PERROR("write: p2m_frame_list");
        goto out;
    }

    success = 1;

 out:
    
    if ( !success && p2m )
        munmap(p2m, P2M_FLL_ENTRIES * PAGE_SIZE);

    if ( live_p2m_frame_list_list )
        munmap(live_p2m_frame_list_list, PAGE_SIZE);

    if ( live_p2m_frame_list )
        munmap(live_p2m_frame_list, P2M_FLL_ENTRIES * PAGE_SIZE);

    if ( p2m_frame_list_list ) 
        free(p2m_frame_list_list);

    if ( p2m_frame_list ) 
        free(p2m_frame_list);

    return success ? p2m : NULL;
}

int xc_domain_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
                   uint32_t max_factor, uint32_t flags, int (*suspend)(void),
                   int hvm, void *(*init_qemu_maps)(int, unsigned), 
                   void (*qemu_flip_buffer)(int, int))
{
    xc_dominfo_t info;
    DECLARE_DOMCTL;

    int rc = 1, frc, i, j, last_iter, iter = 0;
    int live  = (flags & XCFLAGS_LIVE);
    int debug = (flags & XCFLAGS_DEBUG);
    int race = 0, sent_last_iter, skip_this_iter;
    int tmem_saved = 0;

    /* The new domain's shared-info frame number. */
    unsigned long shared_info_frame;

    /* A copy of the CPU context of the guest. */
    vcpu_guest_context_any_t ctxt;

    /* A table containing the type of each PFN (/not/ MFN!). */
    unsigned long *pfn_type = NULL;
    unsigned long *pfn_batch = NULL;

    /* A copy of one frame of guest memory. */
    char page[PAGE_SIZE];

    /* Live mapping of shared info structure */
    shared_info_any_t *live_shinfo = NULL;

    /* base of the region in which domain memory is mapped */
    unsigned char *region_base = NULL;

    /* bitmap of pages:
       - that should be sent this iteration (unless later marked as skip);
       - to skip this iteration because already dirty;
       - to fixup by sending at the end if not already resent; */
    unsigned long *to_send = NULL, *to_skip = NULL, *to_fix = NULL;

    xc_shadow_op_stats_t stats;

    unsigned long needed_to_fix = 0;
    unsigned long total_sent    = 0;

    uint64_t vcpumap = 1ULL;

    /* HVM: a buffer for holding HVM context */
    uint32_t hvm_buf_size = 0;
    uint8_t *hvm_buf = NULL;

    /* HVM: magic frames for ioreqs and xenstore comms. */
    uint64_t magic_pfns[3]; /* ioreq_pfn, bufioreq_pfn, store_pfn */

    unsigned long mfn;

    /* If no explicit control parameters given, use defaults */
    max_iters  = max_iters  ? : DEF_MAX_ITERS;
    max_factor = max_factor ? : DEF_MAX_FACTOR;

    initialize_mbit_rate();
    
    DPRINTF("-->xc_domain_save()\n");

    if ( !get_platform_info(xc_handle, dom,
                            &max_mfn, &hvirt_start, &pt_levels, &guest_width) )
    {
        ERROR("Unable to get platform info.");
        return 1;
    }
    
    DPRINTF("platform info, max_mfn: %lx, hvirt_start %lx, pt_lvevel %x, 
guest_width %x\n",
                            max_mfn, hvirt_start, pt_levels, guest_width);

    if ( xc_domain_getinfo(xc_handle, dom, 1, &info) != 1 )
    {
        ERROR("Could not get domain info");
        return 1;
    }

    shared_info_frame = info.shared_info_frame;    
    DPRINTF("shared_info_frame: 0x%lx\n", shared_info_frame);

    /* Map the shared info frame */
    if ( !hvm )
    {
        live_shinfo = xc_map_foreign_range(xc_handle, dom, PAGE_SIZE,
                                           PROT_READ, shared_info_frame);
        if ( !live_shinfo )
        {
            ERROR("Couldn't map live_shinfo");
            goto out;
        }
    }

    /* Get the size of the P2M table */
    p2m_size = xc_memory_op(xc_handle, XENMEM_maximum_gpfn, &dom) + 1;
    
    DPRINTF("p2m_size: 0x%lx", p2m_size);

    /* Domain is still running at this point */
    if ( live )
    {
        DPRINTF("live suspend\n");
        /* Live suspend. Enable log-dirty mode. */
        if ( xc_shadow_control(xc_handle, dom,
                               XEN_DOMCTL_SHADOW_OP_ENABLE_LOGDIRTY,
                               NULL, 0, NULL, 0, NULL) < 0 )
        {
            /* log-dirty already enabled? There's no test op,
               so attempt to disable then reenable it */
            frc = xc_shadow_control(xc_handle, dom, XEN_DOMCTL_SHADOW_OP_OFF,
                                    NULL, 0, NULL, 0, NULL);
            if ( frc >= 0 )
            {
                frc = xc_shadow_control(xc_handle, dom,
                                        XEN_DOMCTL_SHADOW_OP_ENABLE_LOGDIRTY,
                                        NULL, 0, NULL, 0, NULL);
            }
            
            if ( frc < 0 )
            {
                ERROR("Couldn't enable shadow mode (rc %d) (errno %d)", frc, 
errno );
                goto out;
            }
        }

        if ( hvm )
        {
            /* Get qemu-dm logging dirty pages too */
            void *seg = init_qemu_maps(dom, BITMAP_SIZE);
            qemu_bitmaps[0] = seg;
            qemu_bitmaps[1] = seg + BITMAP_SIZE;
            qemu_active = 0;
            qemu_non_active = 1;
        }
    }
    else
    {
        /* This is a non-live suspend. Suspend the domain .*/
        if ( suspend_and_state(suspend, xc_handle, io_fd, dom, &info) )
        {
            ERROR("Domain appears not to have suspended");
            goto out;
        }
    }

    last_iter = !live;

    /* pretend we sent all the pages last iteration */
    sent_last_iter = p2m_size;

    /* Setup to_send / to_fix and to_skip bitmaps */
    to_send = xg_memalign(PAGE_SIZE, ROUNDUP(BITMAP_SIZE, PAGE_SHIFT)); 
    to_fix  = calloc(1, BITMAP_SIZE);
    to_skip = xg_memalign(PAGE_SIZE, ROUNDUP(BITMAP_SIZE, PAGE_SHIFT)); 

    if ( !to_send || !to_fix || !to_skip )
    {
        ERROR("Couldn't allocate to_send array");
        goto out;
    }

    memset(to_send, 0xff, BITMAP_SIZE);

    if ( lock_pages(to_send, BITMAP_SIZE) )
    {
        ERROR("Unable to lock to_send");
        return 1;
    }

    /* (to fix is local only) */
    if ( lock_pages(to_skip, BITMAP_SIZE) )
    {
        ERROR("Unable to lock to_skip");
        return 1;
    }

    if ( hvm ) 
    {
        DPRINTF("Need another buffer for HVM context\n");
        /* Need another buffer for HVM context */
        hvm_buf_size = xc_domain_hvm_getcontext(xc_handle, dom, 0, 0);
        if ( hvm_buf_size == -1 )
        {
            ERROR("Couldn't get HVM context size from Xen");
            goto out;
        }
        hvm_buf = malloc(hvm_buf_size);
        if ( !hvm_buf )
        {
            ERROR("Couldn't allocate memory");
            goto out;
        }
    }

    analysis_phase(xc_handle, dom, p2m_size, to_skip, 0);

    pfn_type   = xg_memalign(PAGE_SIZE, ROUNDUP(
                              MAX_BATCH_SIZE * sizeof(*pfn_type), PAGE_SHIFT));
    pfn_batch  = calloc(MAX_BATCH_SIZE, sizeof(*pfn_batch));
    if ( (pfn_type == NULL) || (pfn_batch == NULL) )
    {
        ERROR("failed to alloc memory for pfn_type and/or pfn_batch arrays");
        errno = ENOMEM;
        goto out;
    }
    memset(pfn_type, 0,
           ROUNDUP(MAX_BATCH_SIZE * sizeof(*pfn_type), PAGE_SHIFT));

    if ( lock_pages(pfn_type, MAX_BATCH_SIZE * sizeof(*pfn_type)) )
    {
        ERROR("Unable to lock pfn_type array");
        goto out;
    }

    DPRINTF("Setup the mfn_to_pfn table mapping\n");
    /* Setup the mfn_to_pfn table mapping */
    if ( !(live_m2p = xc_map_m2p(xc_handle, max_mfn, PROT_READ)) )
    {
        ERROR("Failed to map live M2P table");
        goto out;
    }
    
    DPRINTF("Start writing out the saved-domain record.\n");
    /* Start writing out the saved-domain record. */
    if ( write_exact(io_fd, &p2m_size, sizeof(unsigned long)) )
    {
        PERROR("write: p2m_size");
        goto out;
    }

    if ( !hvm )
    {
        int err = 0;

        /* Map the P2M table, and write the list of P2M frames */
        live_p2m = map_and_save_p2m_table(xc_handle, io_fd, dom, 
                                          p2m_size, live_shinfo);
        if ( live_p2m == NULL )
        {
            ERROR("Failed to map/save the p2m frame list");
            goto out;
        }

        /*
         * Quick belt and braces sanity check.
         */
        
        for ( i = 0; i < p2m_size; i++ )
        {
            mfn = pfn_to_mfn(i);
            if( (mfn != INVALID_P2M_ENTRY) && (mfn_to_pfn(mfn) != i) )
            {
                DPRINTF("i=0x%x mfn=%lx live_m2p=%lx\n", i,
                        mfn, mfn_to_pfn(mfn));
                err++;
            }
        }
        DPRINTF("Had %d unexplained entries in p2m table\n", err);
    }

    print_stats(xc_handle, dom, 0, &stats, 0);

    tmem_saved = xc_tmem_save(xc_handle, dom, io_fd, live, -5);
    if ( tmem_saved == -1 )
    {
        ERROR("Error when writing to state file (tmem)");
        goto out;
    }

    /* Now write out each data page, canonicalising page tables as we go... */
    for ( ; ; )
    {
        unsigned int prev_pc, sent_this_iter, N, batch, run;

        iter++;
        sent_this_iter = 0;
        skip_this_iter = 0;
        prev_pc = 0;
        N = 0;

        DPRINTF("Saving memory pages: iter %d   0%%", iter);

        while ( N < p2m_size )
        {
            unsigned int this_pc = (N * 100) / p2m_size;

            if ( (this_pc - prev_pc) >= 5 )
            {
                DPRINTF("\b\b\b\b%3d%%", this_pc);
                prev_pc = this_pc;
            }

            if ( !last_iter )
            {
                /* Slightly wasteful to peek the whole array evey time,
                   but this is fast enough for the moment. */
                frc = xc_shadow_control(
                    xc_handle, dom, XEN_DOMCTL_SHADOW_OP_PEEK, to_skip, 
                    p2m_size, NULL, 0, NULL);
                if ( frc != p2m_size )
                {
                    ERROR("Error peeking shadow bitmap");
                    goto out;
                }
            }

            /* load pfn_type[] with the mfn of all the pages we're doing in
               this batch. */
            for  ( batch = 0;
                   (batch < MAX_BATCH_SIZE) && (N < p2m_size);
                   N++ )
            {
                int n = N;

                if ( debug )
                {
                    DPRINTF("%d pfn= %08lx mfn= %08lx %d",
                            iter, (unsigned long)n,
                            hvm ? 0 : pfn_to_mfn(n),
                            test_bit(n, to_send));
                    if ( !hvm && is_mapped(pfn_to_mfn(n)) )
                        DPRINTF("  [mfn]= %08lx",
                                mfn_to_pfn(pfn_to_mfn(n)&0xFFFFF));
                    DPRINTF("\n");
                }
                if ( !last_iter &&
                     test_bit(n, to_send) &&
                     test_bit(n, to_skip) )
                    skip_this_iter++; /* stats keeping */

                if ( !((test_bit(n, to_send) && !test_bit(n, to_skip)) ||
                       (test_bit(n, to_send) && last_iter) ||
                       (test_bit(n, to_fix)  && last_iter)) )
                    continue;

                /*
                ** we get here if:
                **  1. page is marked to_send & hasn't already been re-dirtied
                **  2. (ignore to_skip in last iteration)
                **  3. add in pages that still need fixup (net bufs)
                */

                pfn_batch[batch] = n;

                /* Hypercall interfaces operate in PFNs for HVM guests
                * and MFNs for PV guests */
                if ( hvm ) 
                    pfn_type[batch] = n;
                else
                    pfn_type[batch] = pfn_to_mfn(n);
                    
                if ( !is_mapped(pfn_type[batch]) )
                {
                    /*
                    ** not currently in psuedo-physical map -- set bit
                    ** in to_fix since we must send this page in last_iter
                    ** unless its sent sooner anyhow, or it never enters
                    ** pseudo-physical map (e.g. for ballooned down doms)
                    */
                    set_bit(n, to_fix);
                    continue;
                }

                if ( last_iter &&
                     test_bit(n, to_fix) &&
                     !test_bit(n, to_send) )
                {
                    needed_to_fix++;
                    DPRINTF("Fix! iter %d, pfn %x. mfn %lx\n",
                            iter, n, pfn_type[batch]);
                }
                
                clear_bit(n, to_fix);
                
                batch++;
            }

            if ( batch == 0 )
                goto skip; /* vanishingly unlikely... */

            region_base = xc_map_foreign_batch(
                xc_handle, dom, PROT_READ, pfn_type, batch);
            if ( region_base == NULL )
            {
                ERROR("map batch failed");
                goto out;
            }

            if ( hvm )
            {
                /* Look for and skip completely empty batches. */
                for ( j = 0; j < batch; j++ )
                    if ( (pfn_type[j] & XEN_DOMCTL_PFINFO_LTAB_MASK) !=
                         XEN_DOMCTL_PFINFO_XTAB )
                        break;
                if ( j == batch )
                {
                    munmap(region_base, batch*PAGE_SIZE);
                    continue; /* bail on this batch: no valid pages */
                }
            }
            else
            {
                /* Get page types */
                for ( j = 0; j < batch; j++ )
                    ((uint32_t *)pfn_type)[j] = pfn_type[j];
                if ( xc_get_pfn_type_batch(xc_handle, dom, batch,
                                           (uint32_t *)pfn_type) )
                {
                    ERROR("get_pfn_type_batch failed");
                    goto out;
                }
                for ( j = batch-1; j >= 0; j-- )
                    pfn_type[j] = ((uint32_t *)pfn_type)[j];

                for ( j = 0; j < batch; j++ )
                {
                    
                    if ( (pfn_type[j] & XEN_DOMCTL_PFINFO_LTAB_MASK) ==
                         XEN_DOMCTL_PFINFO_XTAB )
                    {
                        DPRINTF("type fail: page %i mfn %08lx\n", 
                                j, pfn_type[j]);
                        continue;
                    }
                    
                    if ( debug )
                        DPRINTF("%d pfn= %08lx mfn= %08lx [mfn]= %08lx"
                                " sum= %08lx\n",
                                iter,
                                (pfn_type[j] & XEN_DOMCTL_PFINFO_LTAB_MASK) |
                                pfn_batch[j],
                                pfn_type[j],
                                mfn_to_pfn(pfn_type[j] &
                                           ~XEN_DOMCTL_PFINFO_LTAB_MASK),
                                csum_page(region_base + (PAGE_SIZE*j)));
                    
                    /* canonicalise mfn->pfn */
                    pfn_type[j] = (pfn_type[j] & XEN_DOMCTL_PFINFO_LTAB_MASK) |
                        pfn_batch[j];
                }
            }

            if ( write_exact(io_fd, &batch, sizeof(unsigned int)) )
            {
                PERROR("Error when writing to state file (2)");
                goto out;
            }

            if ( write_exact(io_fd, pfn_type, sizeof(unsigned long)*batch) )
            {
                PERROR("Error when writing to state file (3)");
                goto out;
            }

            /* entering this loop, pfn_type is now in pfns (Not mfns) */
            run = 0;
            for ( j = 0; j < batch; j++ )
            {
                unsigned long pfn, pagetype;
                void *spage = (char *)region_base + (PAGE_SIZE*j);

                pfn      = pfn_type[j] & ~XEN_DOMCTL_PFINFO_LTAB_MASK;
                pagetype = pfn_type[j] &  XEN_DOMCTL_PFINFO_LTAB_MASK;

                if ( pagetype != 0 )
                {
                    /* If the page is not a normal data page, write out any
                       run of pages we may have previously acumulated */
                    if ( run )
                    {
                        if ( ratewrite(io_fd, live, 
                                       (char*)region_base+(PAGE_SIZE*(j-run)), 
                                       PAGE_SIZE*run) != PAGE_SIZE*run )
                        {
                            ERROR("Error when writing to state file (4a)"
                                  " (errno %d)", errno);
                            goto out;
                        }                        
                        run = 0;
                    }
                }

                /* skip pages that aren't present */
                if ( pagetype == XEN_DOMCTL_PFINFO_XTAB )
                    continue;

                pagetype &= XEN_DOMCTL_PFINFO_LTABTYPE_MASK;

                if ( (pagetype >= XEN_DOMCTL_PFINFO_L1TAB) &&
                     (pagetype <= XEN_DOMCTL_PFINFO_L4TAB) )
                {
                    /* We have a pagetable page: need to rewrite it. */
                    DPRINTF(" We have a pagetable page: need to rewrite it\n");
                    race = 
                        canonicalize_pagetable(pagetype, pfn, spage, page); 

                    if ( race && !live )
                    {
                        ERROR("Fatal PT race (pfn %lx, type %08lx)", pfn,
                              pagetype);
                        goto out;
                    }

                    if ( ratewrite(io_fd, live, page, PAGE_SIZE) != PAGE_SIZE )
                    {
                        ERROR("Error when writing to state file (4b)"
                              " (errno %d)", errno);
                        goto out;
                    }
                }
                else
                {
                    /* We have a normal page: accumulate it for writing. */
                    run++;
                }
            } /* end of the write out for this batch */

            if ( run )
            {
                /* write out the last accumulated run of pages */
                if ( ratewrite(io_fd, live, 
                               (char*)region_base+(PAGE_SIZE*(j-run)), 
                               PAGE_SIZE*run) != PAGE_SIZE*run )
                {
                    ERROR("Error when writing to state file (4c)"
                          " (errno %d)", errno);
                    goto out;
                }                        
            }

            sent_this_iter += batch;

            munmap(region_base, batch*PAGE_SIZE);

        } /* end of this while loop for this iteration */

      skip:

        total_sent += sent_this_iter;

        DPRINTF("\r %d: sent %d, skipped %d, ",
                iter, sent_this_iter, skip_this_iter );

        if ( last_iter )
        {
            print_stats( xc_handle, dom, sent_this_iter, &stats, 1);

            DPRINTF("Total pages sent= %ld (%.2fx)\n",
                    total_sent, ((float)total_sent)/p2m_size );
            DPRINTF("(of which %ld were fixups)\n", needed_to_fix  );
        }

        if ( last_iter && debug )
        {
            int minusone = -1;
            memset(to_send, 0xff, BITMAP_SIZE);
            debug = 0;
            DPRINTF("Entering debug resend-all mode\n");

            /* send "-1" to put receiver into debug mode */
            if ( write_exact(io_fd, &minusone, sizeof(int)) )
            {
                PERROR("Error when writing to state file (6)");
                goto out;
            }

            continue;
        }

        if ( last_iter )
            break;

        if ( live )
        {
            if ( ((sent_this_iter > sent_last_iter) && RATE_IS_MAX()) ||
                 (iter >= max_iters) ||
                 (sent_this_iter+skip_this_iter < 50) ||
                 (total_sent > p2m_size*max_factor) )
            {
                DPRINTF("Start last iteration\n");
                last_iter = 1;

                if ( suspend_and_state(suspend, xc_handle, io_fd, dom, &info) )
                {
                    ERROR("Domain appears not to have suspended");
                    goto out;
                }

                DPRINTF("SUSPEND shinfo %08lx\n", info.shared_info_frame);
                if ( (tmem_saved > 0) &&
                     (xc_tmem_save_extra(xc_handle,dom,io_fd,-6) == -1) )
                {
                        ERROR("Error when writing to state file (tmem)");
                        goto out;
                }

            }

            if ( xc_shadow_control(xc_handle, dom, 
                                   XEN_DOMCTL_SHADOW_OP_CLEAN, to_send, 
                                   p2m_size, NULL, 0, &stats) != p2m_size )
            {
                ERROR("Error flushing shadow PT");
                goto out;
            }

            if ( hvm ) 
            {
                /* Pull in the dirty bits from qemu-dm too */
                if ( !last_iter )
                {
                    qemu_active = qemu_non_active;
                    qemu_non_active = qemu_active ? 0 : 1;
                    qemu_flip_buffer(dom, qemu_active);
                    for ( j = 0; j < BITMAP_SIZE / sizeof(unsigned long); j++ )
                    {
                        to_send[j] |= qemu_bitmaps[qemu_non_active][j];
                        qemu_bitmaps[qemu_non_active][j] = 0;
                    }
                }
                else
                {
                    for ( j = 0; j < BITMAP_SIZE / sizeof(unsigned long); j++ )
                        to_send[j] |= qemu_bitmaps[qemu_active][j];
                }
            }

            sent_last_iter = sent_this_iter;

            print_stats(xc_handle, dom, sent_this_iter, &stats, 1);

        }
    } /* end of infinite for loop */

    DPRINTF("All memory is saved\n");

    {
        struct {
            int minustwo;
            int max_vcpu_id;
            uint64_t vcpumap;
        } chunk = { -2, info.max_vcpu_id };

        if ( info.max_vcpu_id >= 64 )
        {
            ERROR("Too many VCPUS in guest!");
            goto out;
        }

        for ( i = 1; i <= info.max_vcpu_id; i++ )
        {
            xc_vcpuinfo_t vinfo;
            if ( (xc_vcpu_getinfo(xc_handle, dom, i, &vinfo) == 0) &&
                 vinfo.online )
                vcpumap |= 1ULL << i;
        }

        chunk.vcpumap = vcpumap;
        if ( write_exact(io_fd, &chunk, sizeof(chunk)) )
        {
            PERROR("Error when writing to state file");
            goto out;
        }
    }

    if ( hvm )
    {
        struct {
            int id;
            uint32_t pad;
            uint64_t data;
        } chunk = { 0, };

        chunk.id = -3;
        xc_get_hvm_param(xc_handle, dom, HVM_PARAM_IDENT_PT,
                         (unsigned long *)&chunk.data);

        if ( (chunk.data != 0) &&
             write_exact(io_fd, &chunk, sizeof(chunk)) )
        {
            PERROR("Error when writing the ident_pt for EPT guest");
            goto out;
        }

        chunk.id = -4;
        xc_get_hvm_param(xc_handle, dom, HVM_PARAM_VM86_TSS,
                         (unsigned long *)&chunk.data);

        if ( (chunk.data != 0) &&
             write_exact(io_fd, &chunk, sizeof(chunk)) )
        {
            PERROR("Error when writing the vm86 TSS for guest");
            goto out;
        }
    }

    /* Zero terminate */
    i = 0;
    if ( write_exact(io_fd, &i, sizeof(int)) )
    {
        PERROR("Error when writing to state file (6')");
        goto out;
    }

    if ( hvm ) 
    {
        uint32_t rec_size;

        /* Save magic-page locations. */
        memset(magic_pfns, 0, sizeof(magic_pfns));
        xc_get_hvm_param(xc_handle, dom, HVM_PARAM_IOREQ_PFN,
                         (unsigned long *)&magic_pfns[0]);
        xc_get_hvm_param(xc_handle, dom, HVM_PARAM_BUFIOREQ_PFN,
                         (unsigned long *)&magic_pfns[1]);
        xc_get_hvm_param(xc_handle, dom, HVM_PARAM_STORE_PFN,
                         (unsigned long *)&magic_pfns[2]);
        if ( write_exact(io_fd, magic_pfns, sizeof(magic_pfns)) )
        {
            PERROR("Error when writing to state file (7)");
            goto out;
        }

        /* Get HVM context from Xen and save it too */
        if ( (rec_size = xc_domain_hvm_getcontext(xc_handle, dom, hvm_buf, 
                                                  hvm_buf_size)) == -1 )
        {
            ERROR("HVM:Could not get hvm buffer");
            goto out;
        }
        
        if ( write_exact(io_fd, &rec_size, sizeof(uint32_t)) )
        {
            PERROR("error write hvm buffer size");
            goto out;
        }
        
        if ( write_exact(io_fd, hvm_buf, rec_size) )
        {
            PERROR("write HVM info failed!\n");
            goto out;
        }
        
        /* HVM guests are done now */
        rc = 0;
        goto out;
    }

    /* PV guests only from now on */

    /* Send through a list of all the PFNs that were not in map at the close */
    {
        unsigned int i,j;
        unsigned long pfntab[1024];

        for ( i = 0, j = 0; i < p2m_size; i++ )
        {
            if ( !is_mapped(pfn_to_mfn(i)) )
                j++;
        }

        if ( write_exact(io_fd, &j, sizeof(unsigned int)) )
        {
            PERROR("Error when writing to state file (6a)");
            goto out;
        }

        for ( i = 0, j = 0; i < p2m_size; )
        {
            if ( !is_mapped(pfn_to_mfn(i)) )
                pfntab[j++] = i;

            i++;
            if ( (j == 1024) || (i == p2m_size) )
            {
                if ( write_exact(io_fd, &pfntab, sizeof(unsigned long)*j) )
                {
                    PERROR("Error when writing to state file (6b)");
                    goto out;
                }
                j = 0;
            }
        }
    }

    if ( xc_vcpu_getcontext(xc_handle, dom, 0, &ctxt) )
    {
        ERROR("Could not get vcpu context");
        goto out;
    }

    /* Canonicalise the suspend-record frame number. */
    mfn = GET_FIELD(&ctxt, user_regs.edx);
    if ( !MFN_IS_IN_PSEUDOPHYS_MAP(mfn) )
    {
        ERROR("Suspend record is not in range of pseudophys map");
        goto out;
    }
    SET_FIELD(&ctxt, user_regs.edx, mfn_to_pfn(mfn));

    for ( i = 0; i <= info.max_vcpu_id; i++ )
    {
        if ( !(vcpumap & (1ULL << i)) )
            continue;

        if ( (i != 0) && xc_vcpu_getcontext(xc_handle, dom, i, &ctxt) )
        {
            ERROR("No context for VCPU%d", i);
            goto out;
        }

        /* Canonicalise each GDT frame number. */
        for ( j = 0; (512*j) < GET_FIELD(&ctxt, gdt_ents); j++ )
        {
            mfn = GET_FIELD(&ctxt, gdt_frames[j]);
            if ( !MFN_IS_IN_PSEUDOPHYS_MAP(mfn) )
            {
                ERROR("GDT frame is not in range of pseudophys map");
                goto out;
            }
            SET_FIELD(&ctxt, gdt_frames[j], mfn_to_pfn(mfn));
        }

        /* Canonicalise the page table base pointer. */
        if ( !MFN_IS_IN_PSEUDOPHYS_MAP(UNFOLD_CR3(
                                           GET_FIELD(&ctxt, ctrlreg[3]))) )
        {
            ERROR("PT base is not in range of pseudophys map");
            goto out;
        }
        SET_FIELD(&ctxt, ctrlreg[3], 
            FOLD_CR3(mfn_to_pfn(UNFOLD_CR3(GET_FIELD(&ctxt, ctrlreg[3])))));

        /* Guest pagetable (x86/64) stored in otherwise-unused CR1. */
        if ( (pt_levels == 4) && ctxt.x64.ctrlreg[1] )
        {
            if ( !MFN_IS_IN_PSEUDOPHYS_MAP(UNFOLD_CR3(ctxt.x64.ctrlreg[1])) )
            {
                ERROR("PT base is not in range of pseudophys map");
                goto out;
            }
            /* Least-significant bit means 'valid PFN'. */
            ctxt.x64.ctrlreg[1] = 1 |
                FOLD_CR3(mfn_to_pfn(UNFOLD_CR3(ctxt.x64.ctrlreg[1])));
        }

        if ( write_exact(io_fd, &ctxt, ((guest_width==8) 
                                        ? sizeof(ctxt.x64) 
                                        : sizeof(ctxt.x32))) )
        {
            PERROR("Error when writing to state file (1)");
            goto out;
        }

        domctl.cmd = XEN_DOMCTL_get_ext_vcpucontext;
        domctl.domain = dom;
        domctl.u.ext_vcpucontext.vcpu = i;
        if ( xc_domctl(xc_handle, &domctl) < 0 )
        {
            ERROR("No extended context for VCPU%d", i);
            goto out;
        }
        if ( write_exact(io_fd, &domctl.u.ext_vcpucontext, 128) )
        {
            PERROR("Error when writing to state file (2)");
            goto out;
        }
    }

    /*
     * Reset the MFN to be a known-invalid value. See map_frame_list_list().
     */
    memcpy(page, live_shinfo, PAGE_SIZE);
    SET_FIELD(((shared_info_any_t *)page), 
              arch.pfn_to_mfn_frame_list_list, 0);
    if ( write_exact(io_fd, page, PAGE_SIZE) )
    {
        PERROR("Error when writing to state file (1)");
        goto out;
    }

    /* Success! */
    rc = 0;

 out:

    if ( tmem_saved != 0 && live )
        xc_tmem_save_done(xc_handle, dom);

    if ( live )
    {
        if ( xc_shadow_control(xc_handle, dom, 
                               XEN_DOMCTL_SHADOW_OP_OFF,
                               NULL, 0, NULL, 0, NULL) < 0 )
            DPRINTF("Warning - couldn't disable shadow mode");
    }

    /* Flush last write and discard cache for file. */
    discard_file_cache(io_fd, 1 /* flush */);

    if ( live_shinfo )
        munmap(live_shinfo, PAGE_SIZE);

    if ( live_p2m )
        munmap(live_p2m, P2M_FLL_ENTRIES * PAGE_SIZE);

    if ( live_m2p )
        munmap(live_m2p, M2P_SIZE(max_mfn));

    free(pfn_type);
    free(pfn_batch);
    free(to_send);
    free(to_fix);
    free(to_skip);

    DPRINTF("Save exit rc=%d\n",rc);

    return !!rc;
}

/*
 * Local variables:
 * mode: C
 * c-set-style: "BSD"
 * c-basic-offset: 4
 * tab-width: 4
 * indent-tabs-mode: nil
 * End:
 */

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