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    SubjectRe: [PATCH v3 3/6] x86/cpufeatures: Add AMD feature bits for Speculation Control
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    On 1/24/2018 4:52 PM, Tom Lendacky wrote:
    > On 1/24/2018 11:57 AM, David Woodhouse wrote:
    >> On Wed, 2018-01-24 at 18:20 +0100, Greg KH wrote:
    >>> On Wed, Jan 24, 2018 at 04:57:02PM +0000, David Woodhouse wrote:
    >>>>
    >>>> AMD exposes the PRED_CMD/SPEC_CTRL MSRs slightly differently to Intel.
    >>>> See http://lkml.kernel.org/r/2b3e25cc-286d-8bd0-aeaf-9ac4aae39de8@amd.com
    >>> Oh how fun :(
    >>
    >> At least they *work* the same :)
    >>
    >> Although I still haven't seen that doc, Tom...
    >
    > Working on it...

    The CPUID/MSR information is published:

    https://developer.amd.com/wp-content/resources/Architecture_Guidelines_Update_Indirect_Branch_Control.pdf

    Thanks,
    Tom

    >
    > Thanks,
    > Tom
    >
    >>

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