Messages in this thread | | | From | Jim Mattson <> | Date | Thu, 24 Sep 2020 14:20:33 -0700 | Subject | Re: [PATCH v2 0/2] INVD intercept change to skip instruction |
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On Thu, Sep 24, 2020 at 11:42 AM Tom Lendacky <thomas.lendacky@amd.com> wrote: > > From: Tom Lendacky <thomas.lendacky@amd.com> > > This series updates the INVD intercept support for both SVM and VMX to > skip the instruction rather than emulating it, since emulation of this > instruction is just a NOP.
Isn't INVD a serializing instruction, whereas NOP isn't? IIRC, Intel doesn't architect VM-entry or VM-exit as serializing, though they probably are in practice. I'm not sure what AMD's stance on this is.
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