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Re: [Xen-devel] [PATCH] xen: Add command line option to enable ASID support -- on by default

Keir Fraser writes ("Re: [Xen-devel] [PATCH] xen: Add command line option to 
enable ASID support -- on by default"):
> On 07/03/2012 18:14, "George Dunlap" <george.dunlap@xxxxxxxxxx> wrote:
> > Well at very least to measure the performance benefit (or overhead) of
> > using the feature.  There may be hardware in the future where ASIDs may
> > cause problems; who knows.
> > 
> > AFAICT this isn't documented anywhere, so if you really don't want Yet
> > Another Option, we could probably get rid of it from the XenServer
> > patchqueue.  But I didn't see any harm in it; and you never know when
> > the flexibility of disabling something without recompiling will come in
> > handy.
> Okay, I applied it. I also moved the implementation into hvm/asid.c by the
> way -- your patch was unnecessarily AMD-specific.
> xen-unstable:24986

Surely given that we now have a document listing the command line
options we shouldn't be introducing new options with no documentation ?

If George's original patch had come with a docs hunk it probably would
have already contained the answers to the questions you asked, too...


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