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authorWill Deacon <will.deacon@arm.com>2014-09-02 10:27:36 +0100
committerChristoffer Dall <christoffer.dall@linaro.org>2014-10-02 17:19:18 +0200
commit7bd2f48101c8f43cd36e9920c7315df8575b61a8 (patch)
tree2fc70cea4ff5ea20388b41d6f8d84d38a8229346
parent9e95eca3b761209d08e97144de3962f355ee2078 (diff)
KVM: VFIO: register kvm_device_ops dynamically
Now that we have a dynamic means to register kvm_device_ops, use that for the VFIO kvm device, instead of relying on the static table. This is achieved by a module_init call to register the ops with KVM. Cc: Gleb Natapov <gleb@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Alex Williamson <Alex.Williamson@redhat.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> (cherry picked from commit 80ce1639727e9d38729c34f162378508c307ca25) Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
-rw-r--r--include/linux/kvm_host.h1
-rw-r--r--virt/kvm/kvm_main.c4
-rw-r--r--virt/kvm/vfio.c22
3 files changed, 15 insertions, 12 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ed20bc0d209b..f64e941a4213 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1026,7 +1026,6 @@ int kvm_register_device_ops(struct kvm_device_ops *ops, u32 type);
extern struct kvm_device_ops kvm_mpic_ops;
extern struct kvm_device_ops kvm_xics_ops;
-extern struct kvm_device_ops kvm_vfio_ops;
#ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 111d560418f3..f019669674a5 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2270,10 +2270,6 @@ static struct kvm_device_ops *kvm_device_ops_table[KVM_DEV_TYPE_MAX] = {
#ifdef CONFIG_KVM_XICS
[KVM_DEV_TYPE_XICS] = &kvm_xics_ops,
#endif
-
-#ifdef CONFIG_KVM_VFIO
- [KVM_DEV_TYPE_VFIO] = &kvm_vfio_ops,
-#endif
};
int kvm_register_device_ops(struct kvm_device_ops *ops, u32 type)
diff --git a/virt/kvm/vfio.c b/virt/kvm/vfio.c
index 597c258245ea..475487e238e1 100644
--- a/virt/kvm/vfio.c
+++ b/virt/kvm/vfio.c
@@ -189,6 +189,16 @@ static void kvm_vfio_destroy(struct kvm_device *dev)
kfree(dev); /* alloc by kvm_ioctl_create_device, free by .destroy */
}
+static int kvm_vfio_create(struct kvm_device *dev, u32 type);
+
+static struct kvm_device_ops kvm_vfio_ops = {
+ .name = "kvm-vfio",
+ .create = kvm_vfio_create,
+ .destroy = kvm_vfio_destroy,
+ .set_attr = kvm_vfio_set_attr,
+ .has_attr = kvm_vfio_has_attr,
+};
+
static int kvm_vfio_create(struct kvm_device *dev, u32 type)
{
struct kvm_device *tmp;
@@ -211,10 +221,8 @@ static int kvm_vfio_create(struct kvm_device *dev, u32 type)
return 0;
}
-struct kvm_device_ops kvm_vfio_ops = {
- .name = "kvm-vfio",
- .create = kvm_vfio_create,
- .destroy = kvm_vfio_destroy,
- .set_attr = kvm_vfio_set_attr,
- .has_attr = kvm_vfio_has_attr,
-};
+static int __init kvm_vfio_ops_init(void)
+{
+ return kvm_register_device_ops(&kvm_vfio_ops, KVM_DEV_TYPE_VFIO);
+}
+module_init(kvm_vfio_ops_init);