KVM: VMX: Avoid atomic operation in vmx_vcpu_run

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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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Avi Kivity 2011-01-06 18:09:12 +02:00 • committed by Marcelo Tosatti

parent 1c696d0e1b

commit 40712faeb8

1 changed files with 5 additions and 2 deletions

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arch/x86/kvm/vmx.c

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