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    SubjectRe: [PATCH] Add MCE support to KVM
    > It depends if the MSR may be considered global, or is required to be 
    > per-cpu. Need to refresh my memory on this, but I remember reading this

    Machine Check MSRs need to be per CPU. The latest kernels have some support
    for "shared banks" (between CPUs) but it's better to not have it and
    older OS don't like it.

    -- -- Speaking for myself only.

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