[RFC,v2,7/7] KVM: KVM: don't break vcpu 'halt' state due to apfs

Commit Message

Xiao Guangrong Nov. 2, 2010, 2:30 a.m. UTC

None

Patch

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 2044302..27a712b 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5267,6 +5267,12 @@  out:
 	return r;
 }
 
+static bool kvm_vcpu_leave_halt_state(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.nmi_pending ||
+		(kvm_arch_interrupt_allowed(vcpu) &&
+		 kvm_cpu_has_interrupt(vcpu));
+}
 
 static int __vcpu_run(struct kvm_vcpu *vcpu)
 {
@@ -5299,8 +5305,9 @@  static int __vcpu_run(struct kvm_vcpu *vcpu)
 			{
 				switch(vcpu->arch.mp_state) {
 				case KVM_MP_STATE_HALTED:
-					vcpu->arch.mp_state =
-						KVM_MP_STATE_RUNNABLE;
+					if (kvm_vcpu_leave_halt_state(vcpu))
+						vcpu->arch.mp_state =
+							KVM_MP_STATE_RUNNABLE;
 				case KVM_MP_STATE_RUNNABLE:
 					vcpu->arch.apf.halted = false;
 					break;
@@ -6113,9 +6120,7 @@  int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
 		!vcpu->arch.apf.halted)
 		|| !list_empty_careful(&vcpu->async_pf.done)
 		|| vcpu->arch.mp_state == KVM_MP_STATE_SIPI_RECEIVED
-		|| vcpu->arch.nmi_pending ||
-		(kvm_arch_interrupt_allowed(vcpu) &&
-		 kvm_cpu_has_interrupt(vcpu));
+		|| kvm_vcpu_leave_halt_state(vcpu);
 }
 
 void kvm_vcpu_kick(struct kvm_vcpu *vcpu)