Re: [RFC 0/3] Basic support for LWP

[H. Peter Anvin]

On 10/07/2010 03:46 AM, Stephane Eranian wrote:
> 
> As for the patch itself, I am not an expert at xsave/xrstor, but it seems to
> me you could decouple LWP from FPU. I think  Brian had the same comment.
> I suspect this can be done and it will certainly look cleaner.
> 

Well, once you're using XSAVE you're not decoupled from the FPU.  Worse,
if you're using XSAVE and not honoring CR0.TS you have a major design flaw.

Nothing that can't be dealt with, but still...

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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