[Xen-devel] [Patch] Add hardware TPR access acceleration

To:	<Keir.Fraser@xxxxxxxxxxxx>
Subject:	[Xen-devel] [Patch] Add hardware TPR access acceleration
From:	"Cui, Dexuan" <dexuan.cui@xxxxxxxxx>
Date:	Wed, 27 Sep 2006 09:24:14 +0800
Cc:	xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date:	Tue, 26 Sep 2006 18:25:02 -0700
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Thread-topic:	[Xen-devel] [Patch] Add hardware TPR access acceleration

x64 Windows uses CR8 to access TPR very frequently.
This patch enables TPR shadow and allows mov-from/to-CR8 to access it
directly.
Consequently, quite a number of VM-exits are avoided, and a better
performance is achieved.

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>

hw-cr8-latest-my.diff
Description: hw-cr8-latest-my.diff

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[Xen-devel] [Patch] Add hardware TPR access acceleration