Messages in this thread | | | Date | Wed, 20 Aug 2014 10:13:07 +0200 | From | Paolo Bonzini <> | Subject | Re: [PATCH v4] KVM: vmx: fix ept reserved bits for 1-GByte page |
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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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