From: Avi Kivity <avi@redhat.com>
Date: Thu, 6 Jan 2011 16:09:12 +0000 (+0200)
Subject: KVM: VMX: Avoid atomic operation in vmx_vcpu_run
X-Git-Tag: v2.6.39-rc1~436^2~46
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=40712faeb84dacfcb3925a88231daa08b3624d34;p=pandora-kernel.git

KVM: VMX: Avoid atomic operation in vmx_vcpu_run

Instead of exchanging the guest and host rcx, have separate storage
for each.  This allows us to avoid using the xchg instruction, which
is is a little slower than normal operations.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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