KVM: Move duplicate halt handling code into kvm_main.c

Will soon have a thid user.

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

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 230b25aa469c..556416962541 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -1285,6 +1285,17 @@ int emulate_instruction(struct kvm_vcpu *vcpu,
 }
 EXPORT_SYMBOL_GPL(emulate_instruction);
 
+int kvm_emulate_halt(struct kvm_vcpu *vcpu)
+{
+        if (vcpu->irq_summary)
+                return 1;
+
+        vcpu->run->exit_reason = KVM_EXIT_HLT;
+        ++vcpu->stat.halt_exits;
+        return 0;
+}
+EXPORT_SYMBOL_GPL(kvm_emulate_halt);
+
 int kvm_hypercall(struct kvm_vcpu *vcpu, struct kvm_run *run)
 {
         unsigned long nr, a0, a1, a2, a3, a4, a5, ret;