Messages in this thread |  | | | From | Jun Koi <> | | Date | Wed, 6 Jan 2010 19:17:30 +0900 | | Subject | Re: [PATCH v3 00/12] KVM: Add host swap event notifications for PV guest |
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On Wed, Jan 6, 2010 at 1:04 AM, Avi Kivity <avi@redhat.com> wrote: > On 01/05/2010 05:05 PM, Jun Koi wrote: >> >> Is it true that to make this work, we will need a (PV) kernel driver >> for each guest OS (Windows, Linux, ...)? >> >> > > It's partially usable even without guest modifications; while servicing a > host page fault we can still deliver interrupts to the guest (which might > cause a context switch and thus further progress to be made).
Lets say, in the case the guest has no PV driver. When we find that a guest page is swapped out, we can send a pagefault to the guest to trick it to load that page in. And we dont need the driver at all.
Is that a reasonable solution?
Thanks, J
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