| commit | d225157bc6a442b1214882635fbf287d7d0e8133 | [log] [tgz] |
|---|---|---|
| author | Avi Kivity <avi@redhat.com> | Wed Jan 06 10:55:27 2010 +0200 |
| committer | Marcelo Tosatti <mtosatti@redhat.com> | Mon Mar 01 12:35:51 2010 -0300 |
| tree | edea55c1e777faa364c6c379fff136ded71b001f | |
| parent | 888f9f3e0cfa32baf05b3840f0248f5502292a0f [diff] |
KVM: SVM: Selective cr0 intercept If two conditions apply: - no bits outside TS and EM differ between the host and guest cr0 - the fpu is active then we can activate the selective cr0 write intercept and drop the unconditional cr0 read and write intercept, and allow the guest to run with the host fpu state. This reduces cr0 exits due to guest fpu management while the guest fpu is loaded. Acked-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>