On 12.09.2019 09:22, Chao Gao wrote:
> --- a/xen/arch/x86/microcode_intel.c
> +++ b/xen/arch/x86/microcode_intel.c
> @@ -260,6 +260,36 @@ static enum microcode_match_result
> microcode_update_match(
> return MIS_UCODE;
> }
>
> +static bool match_cpu(const struct microcode_patch *patch)
> +
to replace the current per-cpu cache 'uci->mc'.
With the assumption that all CPUs in the system have the same signature
(family, model, stepping and 'pf'), one microcode update matches with
one cpu should match with others. Having differing microcode revisions
on cpus would cause system unstable a
