[Xen-users] Using qemu-dm in snapshot mode with HVM guest

[SsJ Toma <ssjtoma@xxxxxxxxx>]

Hi all,

I've been trying to get Xen to run an HVM guest utilizing qemu-dm's snapshot mode. I'm using Xen 4.1.2 and the example config file in /etc/xen/xmexample.hvm has a setting that says:

#-----------------------------------------------------------------------------

#  write to temporary files instead of disk image files

#snapshot=1

When I create my VM with that flag enabled in the config file Xen doesn't actually pass that flag to qemu-dm and consequently the VM is not in snapshot mode - changes I made were written to the disk image. Has anyone ever used that feature? Any help would be appreciated!

My config file is:

arch = 32

kernel = "/usr/lib/xen/boot/hvmloader"

builder='hvm'

memory = 128

shadow_memory = 16

name = "xp-sp2"

vif = [ 'type=ioemu,bridge=xenbr0,model=pcnet' ]

disk = [ 'file:/vms/xp-sp2.img,hda,w' ]

device_model = '/usr/lib/xen/bin/qemu-dm'

snapshot=1

boot="c"

acpi = 1

apic = 1

sdl=0

vnc=1

pae=0

>

>

>

T0ma

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