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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2010-05-03 23:04:27 -0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-05-19 11:36:33 +0300 |
| commit | f1d86e469b60f9e1afed5c17a6e723c2c9c55ceb (patch) | |
| tree | 6a0714f44067f2991d4b6910f646ccc691bd3deb /arch/x86/kvm | |
| parent | 84ad33ef5dbc12665ad42ee07a2daed473d3ec54 (diff) | |
| download | op-kernel-dev-f1d86e469b60f9e1afed5c17a6e723c2c9c55ceb.zip op-kernel-dev-f1d86e469b60f9e1afed5c17a6e723c2c9c55ceb.tar.gz | |
KVM: x86: properly update ready_for_interrupt_injection
The recent changes to emulate string instructions without entering guest
mode exposed a bug where pending interrupts are not properly reflected
in ready_for_interrupt_injection.
The result is that userspace overwrites a previously queued interrupt,
when irqchip's are emulated in userspace.
Fix by always updating state before returning to userspace.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/x86.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 6b2ce1d..dff08e5 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4653,7 +4653,6 @@ static int __vcpu_run(struct kvm_vcpu *vcpu) } srcu_read_unlock(&kvm->srcu, vcpu->srcu_idx); - post_kvm_run_save(vcpu); vapic_exit(vcpu); @@ -4703,6 +4702,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) r = __vcpu_run(vcpu); out: + post_kvm_run_save(vcpu); if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &sigsaved, NULL); |
