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authorRusty Russell <rusty@rustcorp.com.au>2007-09-05 19:20:38 +0400
committerAvi Kivity <avi@qumranet.com>2007-10-13 12:18:27 +0400
commit81f50e3bfdf864103ef890ca156e7a9c922c7089 (patch)
treec05329c755cdda57966e3c6777bdee5f28d75c1e /drivers/kvm
parentb85b9ee9259917f248ee1507d7d1f575f4fc27dd (diff)
downloadlinux-81f50e3bfdf864103ef890ca156e7a9c922c7089.tar.xz
KVM: Keep control regs in sync
We don't update the vcpu control registers in various places. We should do so. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm')
-rw-r--r--drivers/kvm/kvm_main.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index d3e534dcf585..7341c0949340 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -543,6 +543,7 @@ void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
return;
}
kvm_arch_ops->set_cr4(vcpu, cr4);
+ vcpu->cr4 = cr4;
mutex_lock(&vcpu->kvm->lock);
kvm_mmu_reset_context(vcpu);
mutex_unlock(&vcpu->kvm->lock);
@@ -1238,10 +1239,8 @@ int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address)
int emulate_clts(struct kvm_vcpu *vcpu)
{
- unsigned long cr0;
-
- cr0 = vcpu->cr0 & ~X86_CR0_TS;
- kvm_arch_ops->set_cr0(vcpu, cr0);
+ vcpu->cr0 &= ~X86_CR0_TS;
+ kvm_arch_ops->set_cr0(vcpu, vcpu->cr0);
return X86EMUL_CONTINUE;
}
@@ -2226,6 +2225,7 @@ static int kvm_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
kvm_arch_ops->decache_cr4_guest_bits(vcpu);
mmu_reset_needed |= vcpu->cr0 != sregs->cr0;
+ vcpu->cr0 = sregs->cr0;
kvm_arch_ops->set_cr0(vcpu, sregs->cr0);
mmu_reset_needed |= vcpu->cr4 != sregs->cr4;