Messages in this thread | | | Date | Tue, 20 Jul 2021 22:09:28 +0000 | From | Sean Christopherson <> | Subject | Re: [PATCH Part2 RFC v4 38/40] KVM: SVM: Provide support for SNP_GUEST_REQUEST NAE event |
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On Tue, Jul 20, 2021, Brijesh Singh wrote: > > On 7/20/21 11:28 AM, Sean Christopherson wrote: > > Out of curiosity, why 4 VMPCKs? It seems completely arbitrary. > > > > I believe the thought process was by providing 4 keys it can provide > flexibility for each VMPL levels to use a different keys (if they wish). The > firmware does not care about the vmpl level during the guest request > handling, it just want to know which key is used for encrypting the payload > so that he can decrypt and provide the response for it.
Ah, I forgot about VMPLs. That makes sense.
Thanks!
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