KVM: Clean up vm creation and release
IA64 support forces us to abstract the allocation of the kvm structure.
But instead of mixing this up with arch-specific initialization and
doing the same on destruction, split both steps. This allows to move
generic destruction calls into generic code.
It also fixes error clean-up on failures of kvm_create_vm for IA64.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index fce0578..4023264 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -383,11 +383,15 @@
static struct kvm *kvm_create_vm(void)
{
- int r = 0, i;
- struct kvm *kvm = kvm_arch_create_vm();
+ int r, i;
+ struct kvm *kvm = kvm_arch_alloc_vm();
- if (IS_ERR(kvm))
- goto out;
+ if (!kvm)
+ return ERR_PTR(-ENOMEM);
+
+ r = kvm_arch_init_vm(kvm);
+ if (r)
+ goto out_err_nodisable;
r = hardware_enable_all();
if (r)
@@ -427,7 +431,7 @@
spin_lock(&kvm_lock);
list_add(&kvm->vm_list, &vm_list);
spin_unlock(&kvm_lock);
-out:
+
return kvm;
out_err:
@@ -438,7 +442,7 @@
for (i = 0; i < KVM_NR_BUSES; i++)
kfree(kvm->buses[i]);
kfree(kvm->memslots);
- kfree(kvm);
+ kvm_arch_free_vm(kvm);
return ERR_PTR(r);
}
@@ -512,6 +516,9 @@
kvm_arch_flush_shadow(kvm);
#endif
kvm_arch_destroy_vm(kvm);
+ kvm_free_physmem(kvm);
+ cleanup_srcu_struct(&kvm->srcu);
+ kvm_arch_free_vm(kvm);
hardware_disable_all();
mmdrop(mm);
}