diff options
| author | Avi Kivity <avi@redhat.com> | 2009-09-01 16:06:25 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-09-10 18:11:06 +0300 |
| commit | e8a48342e9bc1c65ffe4bb3b3ac964e726dbd4c0 (patch) | |
| tree | a669d0c24552f924ad7d1ee463ceb823a60bdd30 /arch/x86/kernel/step.c | |
| parent | 3d53c27d05950390712f92c5ad1604c60190ed64 (diff) | |
KVM: VMX: Conditionally reload debug register 6
Only reload debug register 6 if we're running with the guest's
debug registers. Saves around 150 cycles from the guest lightweight
exit path.
dr6 contains a couple of bits that are updated on #DB, so intercept
that unconditionally and update those bits then.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kernel/step.c')
0 files changed, 0 insertions, 0 deletions