On Wed, Nov 03, 2021, Vipin Sharma wrote: > This check will be done in switch statement of kvm_handle_invpcid(), Please make the changelog a stand on its own, i.e. don't rely on the shortlog for context. > used by both VMX and SVM. It also removes (type > 3) check. Use imperative mood, i.e. state what you're doing as a "command", don't refer to the patch from a third-person point of view. The changelog also needs to call out that, unlike INVVPID and INVEPT, INVPCID is not explicitly documented as checking the "type" before reading the operand from memory. I.e. there's a subtle, undocumented functional change in this patch. Something like: Handle #GP on INVCPID due to an invalid type in the common switch statement instead of relying on callers to manually verify the type is valid. Unlike INVVPID and INVPET, INVPCID is not explicitly documented as checking the type before reading the operand from memory, so deferring the type validity check until after that point is architecturally allowed. For the code: Reviewed-by: Sean Christopherson <seanjc@xxxxxxxxxx>
