Messages in this thread | | | Date | Fri, 15 Jun 2018 13:42:54 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH v6 3/8] x86/microcode/AMD: Check microcode container data in the early loader |
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On Thu, Jun 14, 2018 at 10:56:07PM +0200, Maciej S. Szmigiero wrote: > At this point we don't know the CPU family the particular patch is for > since the patch header contains only CPU rev_id, not an explicit family > number.
patch_fam = 0xf + (mc->processor_rev_id >> 12);
which means, you can do
if (patch_fam != family) return 0;
like verify_and_add_patch() does before calling verify_patch() with the correct family of the current CPU.
-- Regards/Gruss, Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
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