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authorSheng Yang2010-05-12 10:40:40 +0200
committerAvi Kivity2010-05-19 10:41:09 +0200
commita3d204e28579427609c3d15d2310127ebaa47d94 (patch)
treed4da68fd9437dab5b1444766c7367f81496ea4e1 /arch/x86/kvm/x86.c
parentKVM: Don't allow lmsw to clear cr0.pe (diff)
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KVM: x86: Check LMA bit before set_efer
kvm_x86_ops->set_efer() would execute vcpu->arch.efer = efer, so the checking of LMA bit didn't work. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
-rw-r--r--arch/x86/kvm/x86.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index fa1c51925597..f0846d2aa956 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -709,11 +709,11 @@ static int set_efer(struct kvm_vcpu *vcpu, u64 efer)
return 1;
}
- kvm_x86_ops->set_efer(vcpu, efer);
-
efer &= ~EFER_LMA;
efer |= vcpu->arch.efer & EFER_LMA;
+ kvm_x86_ops->set_efer(vcpu, efer);
+
vcpu->arch.efer = efer;
vcpu->arch.mmu.base_role.nxe = (efer & EFER_NX) && !tdp_enabled;