(copied qemu-devel)
On 05/04/2012 10:10 PM, Corey Minyard wrote:
Either way, is this interesting for including into KVM?
Not kvm, but certainly it would make a good addition to qemu, which kvm
then uses.
Does anyone have any
opinions on the possible ways to implement this?
My preference would be the second alternative. The issue you raise is a
good one. There are two ways we can approach it:
- have the management system intercept IPMI requests, start up a qemu
instance (if it's down), and let it handle the event.
- change the whole system to keep a running qemu even when the guest is
down. This is a much larger change; it involves reducing the memory
footprint to almost nothing when the guest is down (deallocating memory
and threads) so it doesn't impact guest density, but it allows for other
minor features such as wake-on-LAN and RTC alarm wakeups.