[kvm-devel] [PATCH] 4/5 Combine kvm_init and kvm_init_x86 into one function

[Zhang, X. <xia...@in...>]

>From 959bc19b0e2ca7edcb3389aabdecf99ba9f1794e Mon Sep 17 00:00:00 2001
From: Zhang Xiantao <xia...@in...>
Date: Thu, 8 Nov 2007 13:19:06 +0800
Subject: [PATCH] Combine kvm_init and kvm_init_x86 into one function,
and
meanwhile remove module_init module_exit function, since they will be
called
once new arch is registered.=20
Signed-off-by: Zhang Xiantao <xia...@in...>
---
 drivers/kvm/kvm.h      |    4 +-
 drivers/kvm/kvm_main.c |   60
+++++++++++++++++------------------------------
 drivers/kvm/svm.c      |    4 +-
 drivers/kvm/vmx.c      |    4 +-
 4 files changed, 28 insertions(+), 44 deletions(-)

diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h
index 4b2421a..33b4629 100644
--- a/drivers/kvm/kvm.h
+++ b/drivers/kvm/kvm.h
@@ -494,9 +494,9 @@ void vcpu_load(struct kvm_vcpu *vcpu);
 void vcpu_put(struct kvm_vcpu *vcpu);
=20
=20
-int kvm_init_x86(struct kvm_x86_ops *ops, unsigned int vcpu_size,
+int kvm_init(struct kvm_x86_ops *ops, unsigned int vcpu_size,
 		  struct module *module);
-void kvm_exit_x86(void);
+void kvm_exit(void);
=20
 int kvm_mmu_module_init(void);
 void kvm_mmu_module_exit(void);
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index da7fb22..8f09170 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -1503,12 +1503,27 @@ static void kvm_sched_out(struct
preempt_notifier *pn,
 	kvm_arch_vcpu_put(vcpu);
 }
=20
-int kvm_init_x86(struct kvm_x86_ops *ops, unsigned int vcpu_size,
+int kvm_init(struct kvm_x86_ops *ops, unsigned int vcpu_size,
 		  struct module *module)
 {
 	int r;
 	int cpu;
=20
+	r =3D kvm_mmu_module_init();
+	if (r)
+		goto out4;
+
+	kvm_init_debug();
+
+	kvm_arch_init();
+
+	bad_page =3D alloc_page(GFP_KERNEL | __GFP_ZERO);
+
+	if (bad_page =3D=3D NULL) {
+		r =3D -ENOMEM;
+		goto out;
+	}
+
 	if (kvm_x86_ops) {
 		printk(KERN_ERR "kvm: already loaded the other
module\n");
 		return -EEXIST;
@@ -1589,11 +1604,14 @@ out_free_0:
 	kvm_arch_hardware_unsetup();
 out:
 	kvm_x86_ops =3D NULL;
+	kvm_exit_debug();
+	kvm_mmu_module_exit();
+out44:
 	return r;
 }
-EXPORT_SYMBOL_GPL(kvm_init_x86);
+EXPORT_SYMBOL_GPL(kvm_init);
=20
-void kvm_exit_x86(void)
+void kvm_exit(void)
 {
 	misc_deregister(&kvm_dev);
 	kmem_cache_destroy(kvm_vcpu_cache);
@@ -1604,43 +1622,9 @@ void kvm_exit_x86(void)
 	on_each_cpu(hardware_disable, NULL, 0, 1);
 	kvm_arch_hardware_unsetup();
 	kvm_x86_ops =3D NULL;
-}
-EXPORT_SYMBOL_GPL(kvm_exit_x86);
-
-static __init int kvm_init(void)
-{
-	int r;
-
-	r =3D kvm_mmu_module_init();
-	if (r)
-		goto out4;
-
-	kvm_init_debug();
-
-	kvm_arch_init();
-
-	bad_page =3D alloc_page(GFP_KERNEL | __GFP_ZERO);
-
-	if (bad_page =3D=3D NULL) {
-		r =3D -ENOMEM;
-		goto out;
-	}
-
-	return 0;
-
-out:
-	kvm_exit_debug();
-	kvm_mmu_module_exit();
-out4:
-	return r;
-}
-
-static __exit void kvm_exit(void)
-{
 	kvm_exit_debug();
 	__free_page(bad_page);
 	kvm_mmu_module_exit();
 }
+EXPORT_SYMBOL_GPL(kvm_exit);
=20
-module_init(kvm_init)
-module_exit(kvm_exit)
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index 95a3489..cc71a07 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -1716,13 +1716,13 @@ static struct kvm_x86_ops svm_x86_ops =3D {
=20
 static int __init svm_init(void)
 {
-	return kvm_init_x86(&svm_x86_ops, sizeof(struct vcpu_svm),
+	return kvm_init(&svm_x86_ops, sizeof(struct vcpu_svm),
 			      THIS_MODULE);
 }
=20
 static void __exit svm_exit(void)
 {
-	kvm_exit_x86();
+	kvm_exit();
 }
=20
 module_init(svm_init)
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index da3a339..d5a77bc 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -2657,7 +2657,7 @@ static int __init vmx_init(void)
 	memset(iova, 0xff, PAGE_SIZE);
 	kunmap(vmx_io_bitmap_b);
=20
-	r =3D kvm_init_x86(&vmx_x86_ops, sizeof(struct vcpu_vmx),
THIS_MODULE);
+	r =3D kvm_init(&vmx_x86_ops, sizeof(struct vcpu_vmx),
THIS_MODULE);
 	if (r)
 		goto out1;
=20
@@ -2678,7 +2678,7 @@ static void __exit vmx_exit(void)
 	__free_page(vmx_io_bitmap_b);
 	__free_page(vmx_io_bitmap_a);
=20
-	kvm_exit_x86();
+	kvm_exit();
 }
=20
 module_init(vmx_init)
--=20
1.5.1.2