[PATCH v2] x86: Support ZHAOXIN GMI instructions

[Jiang, Haochen]

> From: mayshao-oc <mayshao-oc@zhaoxin.com>
> Sent: Tuesday, October 15, 2024 2:52 PM
> 
>  >
> > I still don't know why original montmul will display repz prefix although
> > the testcase does show that. I checked the PadLock doc but got no clue
> > and even more confused. Could you explain why?
> >
> I don't know why, I just do this for the backward compatibility. From my
> own perspective, there is no need to display repz, because there is no
> rep related meaning for the montmul instruction in the padlock doc. But
> I don't want to make the legacy padlock testsuite fail.

Ok I see then.

I suppose disassembler display should not break anything and the current is
somehow buggy and testcase might need a change. But I am ok with keeping
them since the original implementation is 20 years ago and there might be some
reasons doing so. Not changing them is a safe choice.

Thx,
Haochen