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Message-Id: <49BF8FB7.76E4.0078.0@novell.com>
Date: Tue, 17 Mar 2009 10:55:35 +0000
From: "Jan Beulich" <jbeulich@...ell.com>
To: "Andi Kleen" <andi@...stfloor.org>
Cc: "Jeremy Fitzhardinge" <jeremy.fitzhardinge@...rix.com>,
"Jeremy Fitzhardinge" <jeremy@...p.org>,
"Arjan van de Ven" <arjan@...radead.org>,
"the arch/x86 maintainers" <x86@...nel.org>,
"Xen-devel" <xen-devel@...ts.xensource.com>,
"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [Xen-devel] [PATCH 10/24] xen: mask XSAVE from cpuid
>>> Andi Kleen <andi@...stfloor.org> 17.03.09 11:48 >>>
>> No, properly coded xsave support will (hopefully) make user-visible context
>> extensions transparent to hypervisor and OS. But I was giving a general
>> example here, and the change from xmm to ymm registers is one that does
>> need hypervisor (and OS) changes.
>
>Again except for XSAVE support it doesn't, does it?
No, it shouldn't (minus the valid comments hpa added in another reply).
Jan
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