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[Xen-devel] [Patch] Add hardware CR8 acceleration for TPR accessing
| To: | <Keir.Fraser@xxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [Patch] Add hardware CR8 acceleration for TPR accessing |
| From: | "Cui, Dexuan" <dexuan.cui@xxxxxxxxx> |
| Date: | Mon, 23 Oct 2006 16:53:00 +0800 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Mon, 23 Oct 2006 03:04:48 -0700 |
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| Thread-index: | AcbhNpSgnLlsyleeR3aZurd/xO5mYAAmjw1QBSvHBYA= |
| Thread-topic: | [Xen-devel] [Patch] Add hardware CR8 acceleration for TPR accessing |
x64 Windows uses CR8 to access TPR very frequently. This patch enables TPR shadow and allows mov-from/to-CR8 to access it directly; tests indicates it can boost greatly the performance of x64 Windows 2003. Thanks Dexuan Cui Signed-off-by: Eddie Dong <eddie.dong@xxxxxxxxx> Signed-off-by: Yunhong Jiang <yunhong.jiang@xxxxxxxxx> Signed-off-by: Dexuan Cui <dexuan.cui@xxxxxxxxx>
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