From: Eddie Dong <eddie.dong@intel.com>
Date: Thu, 17 May 2007 15:55:15 +0000 (+0300)
Subject: KVM: VMX: Avoid saving and restoring msrs on lightweight vmexit
X-Git-Tag: v2.6.23-rc1~520^2~55
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a75beee6e4f5d2f0ae6e28cd626b2f157e93afd2;p=pandora-kernel.git

KVM: VMX: Avoid saving and restoring msrs on lightweight vmexit

In a lightweight exit (where we exit and reenter the guest without
scheduling or exiting to userspace in between), we don't need various
msrs on the host, and avoiding shuffling them around reduces raw exit
time by 8%.

i386 compile fix by Daniel Hecken <dh@bahntechnik.de>.

Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---

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