From: yuhong <yuhongbao_386@hotmail.com>
To: xen-devel@lists.xensource.com
Subject: Re: [PATCH] Add xsave/xrstor support to Xen
Date: Fri, 3 Apr 2009 17:22:59 -0700 (PDT) [thread overview]
Message-ID: <22878390.post@talk.nabble.com> (raw)
Keir Fraser-3 wrote:
>
> I must say I am happy to wait until there are some actual extended state
> vectors to be saved. It's not clear that the XSAVE format is the right way
> to extend the HVM save/restore format. The right direction may depend on
> what types of new state are introduced, whether these are achitectural or
> vendor-specific, etc. It doesn't sound like there's a downside to sitting
> on
> the fence and doing nothing for now.
>
Fortunately, the additional state that will be saved by future processors
is already documented in the Intel AVX programming reference.
Basically, AVX is extending the XMM registers to 256-bit.
These extended registers are called the YMM registers.
--
View this message in context: http://www.nabble.com/-PATCH--Add-xsave-xrstor-support-to-Xen-tp17511107p22878390.html
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next reply other threads:[~2009-04-04 0:22 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-04 0:22 yuhong [this message]
-- strict thread matches above, loose matches on Subject: below --
2008-11-26 9:43 [PATCH] Add XSAVE/XRSTOR support to Xen Cui, Dexuan
2008-11-26 10:25 ` Keir Fraser
2008-11-26 11:22 ` Jan Beulich
2008-05-28 12:02 [PATCH] Add xsave/xrstor " Cui, Dexuan
2008-05-28 12:06 ` Cui, Dexuan
2008-05-28 12:42 ` Keir Fraser
2008-05-28 13:11 ` Cui, Dexuan
2008-05-28 13:37 ` Keir Fraser
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