KVM: Portability: Add two hooks to handle kvm_create and destroy vm
Add two arch hooks to handle kvm_create_vm and kvm destroy_vm. Now, just
put io_bus init and destory in common.
Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/drivers/kvm/x86.c b/drivers/kvm/x86.c
index abb7bee..b7c72ac 100644
--- a/drivers/kvm/x86.c
+++ b/drivers/kvm/x86.c
@@ -2543,3 +2543,50 @@
kvm_mmu_destroy(vcpu);
free_page((unsigned long)vcpu->pio_data);
}
+
+struct kvm *kvm_arch_create_vm(void)
+{
+ struct kvm *kvm = kzalloc(sizeof(struct kvm), GFP_KERNEL);
+
+ if (!kvm)
+ return ERR_PTR(-ENOMEM);
+
+ INIT_LIST_HEAD(&kvm->active_mmu_pages);
+
+ return kvm;
+}
+
+static void kvm_unload_vcpu_mmu(struct kvm_vcpu *vcpu)
+{
+ vcpu_load(vcpu);
+ kvm_mmu_unload(vcpu);
+ vcpu_put(vcpu);
+}
+
+static void kvm_free_vcpus(struct kvm *kvm)
+{
+ unsigned int i;
+
+ /*
+ * Unpin any mmu pages first.
+ */
+ for (i = 0; i < KVM_MAX_VCPUS; ++i)
+ if (kvm->vcpus[i])
+ kvm_unload_vcpu_mmu(kvm->vcpus[i]);
+ for (i = 0; i < KVM_MAX_VCPUS; ++i) {
+ if (kvm->vcpus[i]) {
+ kvm_arch_vcpu_free(kvm->vcpus[i]);
+ kvm->vcpus[i] = NULL;
+ }
+ }
+
+}
+
+void kvm_arch_destroy_vm(struct kvm *kvm)
+{
+ kfree(kvm->vpic);
+ kfree(kvm->vioapic);
+ kvm_free_vcpus(kvm);
+ kvm_free_physmem(kvm);
+ kfree(kvm);
+}