Re: [PATCH v2 0/2] INVD intercept change to skip instruction

[Jim Mattson]

On Thu, Sep 24, 2020 at 11:42 AM Tom Lendacky <thomas.lendacky@xxxxxxx> wrote:
>
> From: Tom Lendacky <thomas.lendacky@xxxxxxx>
>
> 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.