KVM: Boost vCPU candidate in user mode which is delivering interrupt

[linux-2.6-microblaze.git] / virt / kvm / kvm_main.c

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 48c1e48..2799c66 100644 (file)
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3137,6 +3137,11 @@ static bool vcpu_dy_runnable(struct kvm_vcpu *vcpu)
        return false;
 }
 
+bool __weak kvm_arch_dy_has_pending_interrupt(struct kvm_vcpu *vcpu)
+{
+       return false;
+}
+
 void kvm_vcpu_on_spin(struct kvm_vcpu *me, bool yield_to_kernel_mode)
 {
        struct kvm *kvm = me->kvm;
@@ -3170,7 +3175,8 @@ void kvm_vcpu_on_spin(struct kvm_vcpu *me, bool yield_to_kernel_mode)
                            !vcpu_dy_runnable(vcpu))
                                continue;
                        if (READ_ONCE(vcpu->preempted) && yield_to_kernel_mode &&
-                               !kvm_arch_vcpu_in_kernel(vcpu))
+                           !kvm_arch_dy_has_pending_interrupt(vcpu) &&
+                           !kvm_arch_vcpu_in_kernel(vcpu))
                                continue;
                        if (!kvm_vcpu_eligible_for_directed_yield(vcpu))
                                continue;