[PATCH] x86: Ignore CS, DS, ES, and SS segment-override prefixes in 64-bit mode

[H.J. Lu]

On Sun, Oct 25, 2020 at 10:56 AM Borislav Petkov <bp@suse.de> wrote:
>
> On Sun, Oct 25, 2020 at 10:19:15AM -0700, H.J. Lu wrote:
> > 2 comments:
>
> Thanks for the quick reply.
>
> >
> > 1. A testcase is missing
>
> Ok.
>
> > and the ignore segment override prefix should be displayed.
>
> It is getting displayed, here is a before/after diff:
>
> -ffffffff81000022:      66 66 2e 0f 1f 84 00    data16 nopw %cs:0x0(%rax,%rax,1)
> +ffffffff81000022:      66 66 2e 0f 1f 84 00    data16 cs nopw 0x0(%rax,%rax,1)
>                                                        ^^
>
> or do you mean something else?

Yes, this looks right.  Please add a testcase to verify it.

> > 2. opcodes ChangeLog is in opcodes/ChangeLog.
>
> Ah, right, will correct.
>
> Thx.


-- 
H.J.