KVM: Move kvm_vcpu_kick() to x86.c

Moving kvm_vcpu_kick() to x86.c. Since it should be
common for all archs, put its declarations in <linux/kvm_host.h>

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 5902c5cbc1bb..733bff65d9a9 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3144,3 +3144,23 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
         return vcpu->arch.mp_state == VCPU_MP_STATE_RUNNABLE
                || vcpu->arch.mp_state == VCPU_MP_STATE_SIPI_RECEIVED;
 }
+
+static void vcpu_kick_intr(void *info)
+{
+#ifdef DEBUG
+        struct kvm_vcpu *vcpu = (struct kvm_vcpu *)info;
+        printk(KERN_DEBUG "vcpu_kick_intr %p \n", vcpu);
+#endif
+}
+
+void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
+{
+        int ipi_pcpu = vcpu->cpu;
+
+        if (waitqueue_active(&vcpu->wq)) {
+                wake_up_interruptible(&vcpu->wq);
+                ++vcpu->stat.halt_wakeup;
+        }
+        if (vcpu->guest_mode)
+                smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0, 0);
+}