[Xen-devel] [Patch][RESEND] 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

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-3.patch
Description: cr8-acceleration-3.patch

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