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    SubjectRe: [PATCH Part2 v6 05/49] x86/sev: Add RMP entry lookup helpers
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    On 6/20/22 16:02, Ashish Kalra wrote:
    > +/*
    > + * The RMP entry format is not architectural. The format is defined in PPR
    > + * Family 19h Model 01h, Rev B1 processor.
    > + */

    Let's say that Family 20h comes out and has a new RMP entry format.
    What keeps an old kernel from attempting to use this old format on that
    new CPU?

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