| commit | 323c3d809b8bd42d6d557c734d4bdfdefa110445 | |
| author | Joerg Roedel <joerg.roedel@amd.com> | |
| Mon, 1 Mar 2010 14:34:37 +0000 (1 15:34 +0100) | ||
| committer | Avi Kivity <avi@redhat.com> | |
| Mon, 17 May 2010 09:15:12 +0000 (17 12:15 +0300) | ||
| tree | ac96b682183194f70e10be5dd85d34cef205e7ba | treesnapshot (tar.gz zip) |
| parent | ac72a9b733995cb3ef538000f6309b5e724aa469 | commitdiff |
KVM: SVM: Optimize nested svm msrpm merging
This patch optimizes the way the msrpm of the host and the
guest are merged. The old code merged the 2 msrpm pages
completly. This code needed to touch 24kb of memory for that
operation. The optimized variant this patch introduces
merges only the parts where the host msrpm may contain zero
bits. This reduces the amount of memory which is touched to
48 bytes.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This patch optimizes the way the msrpm of the host and the
guest are merged. The old code merged the 2 msrpm pages
completly. This code needed to touch 24kb of memory for that
operation. The optimized variant this patch introduces
merges only the parts where the host msrpm may contain zero
bits. This reduces the amount of memory which is touched to
48 bytes.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| arch/x86/kvm/svm.c | diffblobblamehistory |