diff options
| author | Avi Kivity <avi@redhat.com> | 2010-12-05 18:56:11 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-01-12 11:31:16 +0200 |
| commit | aff48baa34c033318ad322ecbf2e4bcd891b29ca (patch) | |
| tree | 84955c55c812dd540cd0c54e5bdf6d3f5bfd08be /arch/x86/kvm/svm.c | |
| parent | 9f8fe5043fd26627c2fa2e9a41896885e675000b (diff) | |
KVM: Fetch guest cr3 from hardware on demand
Instead of syncing the guest cr3 every exit, which is expensince on vmx
with ept enabled, sync it only on demand.
[sheng: fix incorrect cr3 seen by Windows XP]
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index a7b04c0bd7a..25bd1bc5aad 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1327,6 +1327,10 @@ static void svm_decache_cr0_guest_bits(struct kvm_vcpu *vcpu) { } +static void svm_decache_cr3(struct kvm_vcpu *vcpu) +{ +} + static void svm_decache_cr4_guest_bits(struct kvm_vcpu *vcpu) { } @@ -3871,6 +3875,7 @@ static struct kvm_x86_ops svm_x86_ops = { .get_cpl = svm_get_cpl, .get_cs_db_l_bits = kvm_get_cs_db_l_bits, .decache_cr0_guest_bits = svm_decache_cr0_guest_bits, + .decache_cr3 = svm_decache_cr3, .decache_cr4_guest_bits = svm_decache_cr4_guest_bits, .set_cr0 = svm_set_cr0, .set_cr3 = svm_set_cr3, |