KVM: Add a special exit reason when exiting due to an interrupt

This is redundant, as we also return -EINTR from the ioctl, but it
allows us to examine the exit_reason field on resume without seeing
old data.

Signed-off-by: Avi Kivity <avi@qumranet.com>

2 files changed, 4 insertions, 0 deletions

diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index b09928f14219..0311665e3c83 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -1619,12 +1619,14 @@ again:
                 if (signal_pending(current)) {
                         ++kvm_stat.signal_exits;
                         post_kvm_run_save(vcpu, kvm_run);
+                        kvm_run->exit_reason = KVM_EXIT_INTR;
                         return -EINTR;
                 }
 
                 if (dm_request_for_irq_injection(vcpu, kvm_run)) {
                         ++kvm_stat.request_irq_exits;
                         post_kvm_run_save(vcpu, kvm_run);
+                        kvm_run->exit_reason = KVM_EXIT_INTR;
                         return -EINTR;
                 }
                 kvm_resched(vcpu);
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index cf9568fbe8a5..e69bab6d811d 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -1941,12 +1941,14 @@ again:
                         if (signal_pending(current)) {
                                 ++kvm_stat.signal_exits;
                                 post_kvm_run_save(vcpu, kvm_run);
+                                kvm_run->exit_reason = KVM_EXIT_INTR;
                                 return -EINTR;
                         }
 
                         if (dm_request_for_irq_injection(vcpu, kvm_run)) {
                                 ++kvm_stat.request_irq_exits;
                                 post_kvm_run_save(vcpu, kvm_run);
+                                kvm_run->exit_reason = KVM_EXIT_INTR;
                                 return -EINTR;
                         }