Messages in this thread |  | | Date | Fri, 11 Apr 2025 11:45:51 +0200 | | From | Borislav Petkov <> | | Subject | Re: [PATCH] KVM: x86: Sort CPUID_8000_0021_EAX leaf bits properly |
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On Thu, Apr 10, 2025 at 02:46:39PM -0700, Sean Christopherson wrote: > I'm going to skip these, as they aren't yet publicly documented,
https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/programmer-references/57238.zip
> and there are patches proposed to add actual support. I wouldn't care all > that much if these didn't collide with Intel's version (the proposed patches > name them AMD_FSxx). > > https://lore.kernel.org/all/20241204134345.189041-2-davydov-max@yandex-team.ru
Pff, I think the right thing to do is to detect those and when set, set the Intel flags because they're basically the same.
Lemme go reply there.
... goes and replies...
> > > /* PrefetchCtlMsr */ > > - F(WRMSR_XX_BASE_NS), > > + /* GpOnUserCpuid */ > > + /* EPSF */ > > FWIW, this one's also not in the APM (though the only APM I can find is a year old), > though it's in tools/x86/kcpuid.
See above. Yeah, the PPRs have them earlier than the APM.
Thx.
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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