* Handling page faults in KVM
@ 2010-06-25 1:03 Khaled Ibrahim
2010-06-28 3:36 ` Avi Kivity
0 siblings, 1 reply; 2+ messages in thread
From: Khaled Ibrahim @ 2010-06-25 1:03 UTC (permalink / raw)
To: kvm
Apparently, not all page faults on the guest result in a page fault in the host. I would like to intercept page faults on the guest that are not handled by the host.
I am not quite sure where (in the source code) can I monitor that?
Can any one give me code pointers to look at?
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Handling page faults in KVM
2010-06-25 1:03 Handling page faults in KVM Khaled Ibrahim
@ 2010-06-28 3:36 ` Avi Kivity
0 siblings, 0 replies; 2+ messages in thread
From: Avi Kivity @ 2010-06-28 3:36 UTC (permalink / raw)
To: Khaled Ibrahim; +Cc: kvm
On 06/25/2010 04:03 AM, Khaled Ibrahim wrote:
>
> Apparently, not all page faults on the guest result in a page fault in the host. I would like to intercept page faults on the guest that are not handled by the host.
> I am not quite sure where (in the source code) can I monitor that?
> Can any one give me code pointers to look at?
>
>
You need to disable ept or not, and on Intel, load the kvm_intel module
with bypass_guest_pf=0. With that, kvm will intercept all guest page
faults.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
^ permalink raw reply [flat|nested] 2+ messages in thread
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