KVM: Portability: MMU initialization and teardown split
Move out kvm_mmu init and exit functionality from kvm_main.c
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 935e2769..2257a0a 100644
--- a/drivers/kvm/x86.c
+++ b/drivers/kvm/x86.c
@@ -1711,33 +1711,47 @@
int kvm_arch_init(void *opaque)
{
+ int r;
struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque;
+ r = kvm_mmu_module_init();
+ if (r)
+ goto out_fail;
+
kvm_init_msr_list();
if (kvm_x86_ops) {
printk(KERN_ERR "kvm: already loaded the other module\n");
- return -EEXIST;
+ r = -EEXIST;
+ goto out;
}
if (!ops->cpu_has_kvm_support()) {
printk(KERN_ERR "kvm: no hardware support\n");
- return -EOPNOTSUPP;
+ r = -EOPNOTSUPP;
+ goto out;
}
if (ops->disabled_by_bios()) {
printk(KERN_ERR "kvm: disabled by bios\n");
- return -EOPNOTSUPP;
+ r = -EOPNOTSUPP;
+ goto out;
}
kvm_x86_ops = ops;
-
+ kvm_mmu_set_nonpresent_ptes(0ull, 0ull);
return 0;
+
+out:
+ kvm_mmu_module_exit();
+out_fail:
+ return r;
}
void kvm_arch_exit(void)
{
kvm_x86_ops = NULL;
- }
+ kvm_mmu_module_exit();
+}
int kvm_emulate_halt(struct kvm_vcpu *vcpu)
{