Re: [Libvir] [patch] qemu/kvm: use_system_powerdown instead of killing the vm hard
On Wed, Jan 09, 2008 at 04:11:44PM +0100, Guido Guenther wrote:
On Tue, Jan 08, 2008 at 06:34:36PM +0000, Daniel P. Berrange wrote:
> Fair enough. Any idea if the 'system_reboot' command is also wired up
> in KVM yet ? We should probably just add code to call it anyway since
> it'll be near identical code to that which you used for shutdown, and
> its better than leaving domainReboot driver method as a no-op.
There's no system_reboot in either kvm nor qemu. I see two solutions
for wireing up domainReboot(). Either qemu/kvm accepts a parameter to
system_powerdown to signal that we should restart the vm instead of
simply shutting down or we simply send
"sendkey ctrl-alt-delete"
to the monitor which might be very fragile though. Both solutions depend
on the os in the vm doing the right thing (acpi event handling in the
first case).
Well there's a 'system_reset' monitor command, but its unclear if
its actually working - when i run it, it stops the guest from responding
to any keyboard input and makes it take 100% CPU, but doesn't reboot :-(
If that's not suitable i think the ctrl-alt-delete thing is probably the
best we can do.
Dan.
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