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Re: [Xen-devel] [PATCH] xen: mask XSAVE in cpuid since we don't allowgu
| To: | Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] xen: mask XSAVE in cpuid since we don't allowguests to use it |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Mon, 09 Mar 2009 17:54:21 +0000 |
| Cc: | Boris Derzhavets <bderzhavets@xxxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Marc - A. Dahlhaus \[ Administration | Westermann GmbH \]" <mad@xxxxxx> |
| Delivery-date: | Mon, 09 Mar 2009 10:54:49 -0700 |
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| Thread-topic: | [Xen-devel] [PATCH] xen: mask XSAVE in cpuid since we don't allowguests to use it |
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On 09/03/2009 16:40, "Jeremy Fitzhardinge" <jeremy@xxxxxxxx> wrote: > Keir Fraser wrote: >> It seems reasonable to mask XSAVE for now though. I don't think it can >> usefully be used without some Xen support. >> > > You mean Xen support to deal with a new CPU context structure, or > something requiring specific guest code, like what's needed to support > sysenter/syscall? I mean it indicates new CPU context requiring context switching. But, fully generally, who knows? :-) -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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