KVM: Move duplicate halt handling code into kvm_main.c

Will soon have a thid user.

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

diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h
index e665f55..ac358b8 100644 (file)
--- a/drivers/kvm/kvm.h
+++ b/drivers/kvm/kvm.h
@@ -504,6 +504,7 @@ int kvm_setup_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
                  int size, unsigned long count, int string, int down,
                  gva_t address, int rep, unsigned port);
 void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
+int kvm_emulate_halt(struct kvm_vcpu *vcpu);
 int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
 int emulate_clts(struct kvm_vcpu *vcpu);
 int emulator_get_dr(struct x86_emulate_ctxt* ctxt, int dr,

diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 230b25a..5564169 100644 (file)
--- 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;

diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index ec040e2..70f386e 100644 (file)
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -1115,12 +1115,7 @@ static int halt_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 {
        vcpu->svm->next_rip = vcpu->svm->vmcb->save.rip + 1;
        skip_emulated_instruction(vcpu);
-       if (vcpu->irq_summary)
-               return 1;
-
-       kvm_run->exit_reason = KVM_EXIT_HLT;
-       ++vcpu->stat.halt_exits;
-       return 0;
+       return kvm_emulate_halt(vcpu);
 }
 
 static int vmmcall_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)

diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index a534e6f..90abd3c 100644 (file)
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -1896,12 +1896,7 @@ static int handle_interrupt_window(struct kvm_vcpu *vcpu,
 static int handle_halt(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 {
        skip_emulated_instruction(vcpu);
-       if (vcpu->irq_summary)
-               return 1;
-
-       kvm_run->exit_reason = KVM_EXIT_HLT;
-       ++vcpu->stat.halt_exits;
-       return 0;
+       return kvm_emulate_halt(vcpu);
 }
 
 static int handle_vmcall(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)