[PATCH 4/4] x86: MONITOR/MWAIT are not SSE3 insns

[H.J. Lu]

On Mon, Feb 13, 2023 at 12:08 AM Jan Beulich <jbeulich@suse.com> wrote:
>
> On 10.02.2023 18:02, H.J. Lu wrote:
> > Since they used to be in SSE3, should they be also allowed with SSE3?
>
> In order to answer the question, can you please clarify what you mean
> by "used to be in SSE3"? I'm not aware of a spec ever marking them as
> SSE3 insns. And not allowing their use in e.g. generic32+sse3 is one
> of the purposes of this change, because that was simply wrong.
>

I checked 2005 Intel SDM which has a separate CPUID bit for MONITOR/MWAIT.
No need for SSE3 then.

Thanks.

-- 
H.J.