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[Xen-devel] [PATCH 0/4] VPMU: Performance counter virtualization for AMD
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| Subject: | [Xen-devel] [PATCH 0/4] VPMU: Performance counter virtualization for AMD family 10h processors |
| From: | Wei Wang2 <wei.wang2@xxxxxxx> |
| Date: | Wed, 12 May 2010 18:25:02 +0200 |
| Delivery-date: | Wed, 12 May 2010 09:28:16 -0700 |
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Hi, Thist patch set implements performance counter virtualization for AMD family 10h processors. Using this patch, profiling tools can be utilized directly within HVM guest without modification. AMD family 10h processor offers a hardware feature, the Guest Only bit, for guest profiling. If GO bit is enabled, only guest cycles are counted. This will highly reduced the complexity of hypervisor design and boost the performance for profiling guest. Thanks, Wei Signed-off-by: Wei Wang <wei.wang2@xxxxxxx> -- AMD GmbH, Germany Operating System Research Center Legal Information: Advanced Micro Devices GmbH Karl-Hammerschmidt-Str. 34 85609 Dornach b. München Geschäftsführer: Andrew Bowd, Thomas M. McCoy, Giuliano Meroni Sitz: Dornach, Gemeinde Aschheim, Landkreis München Registergericht München, HRB Nr. 43632 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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