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[Xen-devel] [PATCH 2/5][RFC] lwp: adding support for AMD lightweight pro
| To: | "'xen-devel@xxxxxxxxxxxxxxxxxxx'" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Keir Fraser <keir@xxxxxxx>, "Wei, Gang" <gang.wei@xxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH 2/5][RFC] lwp: adding support for AMD lightweight profiling |
| From: | Wei Huang <wei.huang2@xxxxxxx> |
| Date: | Fri, 11 Feb 2011 10:28:43 -0600 |
| Cc: | |
| Delivery-date: | Fri, 11 Feb 2011 08:41:58 -0800 |
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Add a new field for xsave/xrstor functions to specify the features.Current implementation set EAX:EDX to all 1's. To be prepared for LWP, we add a parameter in xsave/xrstor functions to be set in EAX:EDX. Some of the idea was borrowed from Hans Rosenfeld's Linux kernel patch. Signed-off-by: Wei Huang <wei.huang2@xxxxxxx>
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