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/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index f56a631..48a48bd 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -749,7 +749,7 @@
return r;
}
-static struct kvm *kvm_alloc_kvm(void)
+struct kvm *kvm_arch_alloc_vm(void)
{
struct kvm *kvm;
@@ -760,7 +760,7 @@
vm_base = __get_free_pages(GFP_KERNEL, get_order(KVM_VM_DATA_SIZE));
if (!vm_base)
- return ERR_PTR(-ENOMEM);
+ return NULL;
memset((void *)vm_base, 0, KVM_VM_DATA_SIZE);
kvm = (struct kvm *)(vm_base +
@@ -806,10 +806,12 @@
#define GUEST_PHYSICAL_RR4 0x2739
#define VMM_INIT_RR 0x1660
-static void kvm_init_vm(struct kvm *kvm)
+int kvm_arch_init_vm(struct kvm *kvm)
{
BUG_ON(!kvm);
+ kvm->arch.is_sn2 = ia64_platform_is("sn2");
+
kvm->arch.metaphysical_rr0 = GUEST_PHYSICAL_RR0;
kvm->arch.metaphysical_rr4 = GUEST_PHYSICAL_RR4;
kvm->arch.vmm_init_rr = VMM_INIT_RR;
@@ -823,21 +825,8 @@
/* Reserve bit 0 of irq_sources_bitmap for userspace irq source */
set_bit(KVM_USERSPACE_IRQ_SOURCE_ID, &kvm->arch.irq_sources_bitmap);
-}
-struct kvm *kvm_arch_create_vm(void)
-{
- struct kvm *kvm = kvm_alloc_kvm();
-
- if (IS_ERR(kvm))
- return ERR_PTR(-ENOMEM);
-
- kvm->arch.is_sn2 = ia64_platform_is("sn2");
-
- kvm_init_vm(kvm);
-
- return kvm;
-
+ return 0;
}
static int kvm_vm_ioctl_get_irqchip(struct kvm *kvm,
@@ -1357,7 +1346,7 @@
return -EINVAL;
}
-static void free_kvm(struct kvm *kvm)
+void kvm_arch_free_vm(struct kvm *kvm)
{
unsigned long vm_base = kvm->arch.vm_base;
@@ -1399,9 +1388,6 @@
#endif
kfree(kvm->arch.vioapic);
kvm_release_vm_pages(kvm);
- kvm_free_physmem(kvm);
- cleanup_srcu_struct(&kvm->srcu);
- free_kvm(kvm);
}
void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)