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    SubjectRe: [PATCH v2] x86/entry/64: Do not use RDPID in paranoid entry to accomodate KVM
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    On Fri, Aug 21 2020 at 11:35, Brian Gerst wrote:
    > On Fri, Aug 21, 2020 at 10:22 AM Sean Christopherson
    >> > .macro GET_PERCPU_BASE reg:req
    >> > - ALTERNATIVE \
    >> > - "LOAD_CPU_AND_NODE_SEG_LIMIT \reg", \
    >> > - "RDPID \reg", \
    >>
    >> This was the only user of the RDPID macro, I assume we want to yank that out
    >> as well?
    >
    > No. That one should be kept until the minimum binutils version is
    > raised to one that supports the RDPID opcode.

    The macro is unused and nothing in the kernel can use RDPID as we just
    established.

    Thanks,

    tglx

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