Re: [PATCH 1/2] KVM: MMU: allow more page become unsync at gfn mappingtime

From: Xiao Guangrong
Date: Sun May 23 2010 - 22:07:12 EST

Avi Kivity wrote:

>> + if (need_unsync)
>> + kvm_unsync_pages(vcpu, gfn);
>> return 0;
>> }
> Looks good, I'm just uncertain about role.invalid handling. What's the
> reasoning here?


Thanks for your reply.

We no need worry about 'role.invalid' here, since we only allow the PTE shadow
pages(role.level == 1) become unsync, and in current code, 'role.invalid' is only
used for root shadow pages.
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