Messages in this thread | | | Date | Wed, 21 Sep 2022 19:11:42 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH v2 0/3] KVM: EFER.LMSLE cleanup |
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On Wed, Sep 21, 2022 at 09:23:40AM -0700, Jim Mattson wrote: > AMD defined the 64-bit x86 extensions while Intel was distracted with > their VLIW science fair project. In this space, Intel produces AMD64 > compatible CPUs.
Almost-compatible. And maybe, just maybe, because Intel were probably and practically forced to implement AMD64 but then thought, oh well, we'll do some things differently.
> The definitive specification comes from AMD (which is sad, because > AMD's documentation is abysmal).
Just don't tell me the SDM is better...
But you and I are really talking past each other: there's nothing definitive about a spec if, while implementing it, the other vendor is doing some subtle, but very software visible things differently.
I.e., the theory vs reality point I'm trying to get across.
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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