Re: [PATCH] KVM: MMU: avoid fast page fault fixing mmio page fault

Xiao Guangrong
2013-07-18T04:55:45Z

On 07/18/2013 12:52 PM, Xiao Guangrong wrote:
> Currently, fast page fault tries to fix mmio page fault when the
> generation number is invalid (spte.gen != kvm.gen) and returns to
> guest to retry the fault since it sees the last spte is nonpresent
> which causes infinity loop
>
> It can be triggered only on AMD host since the mmio page fault is
> recognized as ept-misconfig

Sorry, It should be "recognized as ept-misconfig on Intel host."