[Xen-devel] [Patch] Add hardware CR8 acceleration for TPR accessing

["Cui, Dexuan" <dexuan.cui@xxxxxxxxx>]

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>

Attachment: cr8-acceleration-2.patch
Description: cr8-acceleration-2.patch

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