Re: [PATCH 2/3] KVM: MMU: don not retry #PF for nonpaging guest

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Nov 05, 2010 at 04:03:28PM +0800, Xiao Guangrong wrote:
> On 11/05/2010 03:45 PM, Gleb Natapov wrote:
> 
> >>
> >> It looks like something broken: apfs can generated in L2 guest (nested ntp guest)
> >> and be retried in L1 guest.
> >>
> > Why is this a problem? apf will be generate on direct map even when L2
> > guest is running so it should be OK to prefault it into direct map on
> > completion.
> > 
> 
> The nested_cr3 is different between L2 and L1, fix L2's page fault in L1's page table
> is useless.
But we are fixing L0 page faults in L0 page table. We do not start apf
because of L1 faulted in its page table.

--
			Gleb.
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux