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SubjectRe: [RFC PATCH v2 41/69] KVM: x86: Add infrastructure for stolen GPA bits
On Sat, Aug 07, 2021, Kai Huang wrote:
> So could we have your final suggestion? :)

Try the kvm_mmu_page_role.private approach. So long as it doesn't end up splattering
code everywhere, I think that's more aligned with how KVM generally wants to treat
the shared bit.

In the changelog for this patch, make it very clear that ensuring different aliases
get different shadow page (if necessary) is the responsiblity of each individual
feature that leverages stolen gfn bits.

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