[MODERATED] Re: qemu patch for mb_clear

On Fri, Mar 01, 2019 at 08:37:29AM -0600, Josh Poimboeuf wrote:
> On Thu, Dec 20, 2018 at 04:31:01PM -0800, speck for Andi Kleen wrote:
> > 
> > For reference here is the qemu patch needed for using MB_CLEAR in a KVM
> > guest.
> > 
> > -Andi
> > 
> > diff --git a/target/i386/cpu.c b/target/i386/cpu.c
> > index 677a3bd5fb25..77a1149e4bb3 100644
> > --- a/target/i386/cpu.c
> > +++ b/target/i386/cpu.c
> > @@ -1038,7 +1038,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
> >          .feat_names = {
> >              NULL, NULL, "avx512-4vnniw", "avx512-4fmaps",
> >              NULL, NULL, NULL, NULL,
> > -            NULL, NULL, NULL, NULL,
> > +            NULL, NULL, "mbclear", NULL,
> >              NULL, NULL, NULL, NULL,
> >              NULL, NULL, "pconfig", NULL,
> >              NULL, NULL, NULL, NULL,
> 
> Is this still the latest version of the qemu patch?  I assume this needs
> to be updated to MD_CLEAR.

Also:

- A patch title and description would be helpful.

- Calling it "md-clear" (with the dash) would be preferable, as people
  constantly get confused when the names differ (and apparently qemu
  uses dashes instead of underscores).

-- 
Josh