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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>
This commit is contained in:
Zhang Xiantao 2007-11-18 20:43:21 +08:00 committed by Avi Kivity
parent 5bb064dcde
commit 56c6d28a9a
2 changed files with 19 additions and 13 deletions
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8
drivers/kvm/kvm_main.c
View File

@ -1383,10 +1383,6 @@ int kvm_init(void *opaque, unsigned int vcpu_size,
int r; int r;
int cpu; int cpu;
r = kvm_mmu_module_init();
if (r)
goto out4;
kvm_init_debug(); kvm_init_debug();
r = kvm_arch_init(opaque); r = kvm_arch_init(opaque);
@ -1446,8 +1442,6 @@ int kvm_init(void *opaque, unsigned int vcpu_size,
kvm_preempt_ops.sched_in = kvm_sched_in; kvm_preempt_ops.sched_in = kvm_sched_in;
kvm_preempt_ops.sched_out = kvm_sched_out; kvm_preempt_ops.sched_out = kvm_sched_out;
kvm_mmu_set_nonpresent_ptes(0ull, 0ull);
return 0; return 0;
out_free: out_free:
@ -1466,7 +1460,6 @@ out_free_0:
out: out:
kvm_arch_exit(); kvm_arch_exit();
kvm_exit_debug(); kvm_exit_debug();
kvm_mmu_module_exit();
out4: out4:
return r; return r;
} }
@ -1485,6 +1478,5 @@ void kvm_exit(void)
kvm_arch_exit(); kvm_arch_exit();
kvm_exit_debug(); kvm_exit_debug();
__free_page(bad_page); __free_page(bad_page);
kvm_mmu_module_exit();
} }
EXPORT_SYMBOL_GPL(kvm_exit); EXPORT_SYMBOL_GPL(kvm_exit);

24
drivers/kvm/x86.c
View File

@ -1711,33 +1711,47 @@ EXPORT_SYMBOL_GPL(kvm_emulate_pio_string);
int kvm_arch_init(void *opaque) int kvm_arch_init(void *opaque)
{ {
int r;
struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque; struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque;
r = kvm_mmu_module_init();
if (r)
goto out_fail;
kvm_init_msr_list(); kvm_init_msr_list();
if (kvm_x86_ops) { if (kvm_x86_ops) {
printk(KERN_ERR "kvm: already loaded the other module\n"); printk(KERN_ERR "kvm: already loaded the other module\n");
return -EEXIST; r = -EEXIST;
goto out;
} }
if (!ops->cpu_has_kvm_support()) { if (!ops->cpu_has_kvm_support()) {
printk(KERN_ERR "kvm: no hardware support\n"); printk(KERN_ERR "kvm: no hardware support\n");
return -EOPNOTSUPP; r = -EOPNOTSUPP;
goto out;
} }
if (ops->disabled_by_bios()) { if (ops->disabled_by_bios()) {
printk(KERN_ERR "kvm: disabled by bios\n"); printk(KERN_ERR "kvm: disabled by bios\n");
return -EOPNOTSUPP; r = -EOPNOTSUPP;
goto out;
} }
kvm_x86_ops = ops; kvm_x86_ops = ops;
kvm_mmu_set_nonpresent_ptes(0ull, 0ull);
return 0; return 0;
out:
kvm_mmu_module_exit();
out_fail:
return r;
} }
void kvm_arch_exit(void) void kvm_arch_exit(void)
{ {
kvm_x86_ops = NULL; kvm_x86_ops = NULL;
} kvm_mmu_module_exit();
}
int kvm_emulate_halt(struct kvm_vcpu *vcpu) int kvm_emulate_halt(struct kvm_vcpu *vcpu)
{ {