KVM: Optimize kvm_read_cr[04]_bits()

Browse source

'mask' is always a constant, so we can check whether it includes a bit that
might be owned by the guest very cheaply, and avoid the decache call.  Saves
a few hundred bytes of module text.

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

...

This commit is contained in:

Avi Kivity 2010-01-21 15:31:51 +02:00 • committed by Marcelo Tosatti

parent f6801dff23

commit 8ae0991276

1 changed files with 9 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

11

arch/x86/kvm/kvm_cache_regs.h

View file