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SubjectRe: [PATCH v5 4/5] KVM: VMX: Allow direct access to MSR_IA32_SPEC_CTRL
You seem to be making the assumption that there is one L2. What if
there are 100 L2s, and only one has write-access to IA32_SPEC_CTRL? Or
what if there once was such an L2, but it's been gone for months? The
current mechanism penalizes *all* L2s if any L2, ever, has
write-access to IA32_SPEC_CTRL.

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