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| author | Avi Kivity <avi@qumranet.com> | 2007-11-07 17:14:18 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2007-11-08 12:05:43 +0200 |
| commit | 56ba47ddbd5af7918bf1acdbe3deb979d0dcd64b (patch) | |
| tree | 791ae295a0cb48c82aa66ad3aaf0485cf5853185 /drivers | |
| parent | 70433389ccfe2719ef5cd539d04172260294f0f5 (diff) | |
| download | blackbird-op-linux-56ba47ddbd5af7918bf1acdbe3deb979d0dcd64b.tar.gz blackbird-op-linux-56ba47ddbd5af7918bf1acdbe3deb979d0dcd64b.zip | |
KVM: SVM: Defer nmi processing until switch to host state is complete
If we stgi() too soon, nmis can reach the processor even though interrupts
are disabled, catching it in a half-switched state. Delay the stgi() until
we're done switching.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/kvm/svm.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c index 3910358db79d..7376805c88ab 100644 --- a/drivers/kvm/svm.c +++ b/drivers/kvm/svm.c @@ -1585,10 +1585,6 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) #endif : "cc", "memory" ); - local_irq_disable(); - - stgi(); - if ((svm->vmcb->save.dr7 & 0xff)) load_db_regs(svm->host_db_regs); @@ -1605,6 +1601,10 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) reload_tss(vcpu); + local_irq_disable(); + + stgi(); + svm->next_rip = 0; } |
