Re: [PATCH v4] KVM: vmx: fix ept reserved bits for 1-GByte page

[Paolo Bonzini]

Il 20/08/2014 09:31, Wanpeng Li ha scritto:
> EPT misconfig handler in kvm will check which reason lead to EPT
> misconfiguration after vmexit. One of the reasons is that an EPT
> paging-structure entry is configured with settings reserved for
> future functionality. However, the handler can't identify if
> paging-structure entry of reserved bits for 1-GByte page are
> configured, since PDPTE which point to 1-GByte page will reserve
> bits 29:12 instead of bits 7:3 which are reserved for PDPTE that
> references an EPT Page Directory. This patch fix it by reserve
> bits 29:12 for 1-GByte page.

Thanks, the patch looks good.

Can you describe how you detected the problem and how you're testing for it?

Paolo
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