KVM: remove in_range from io devices

[mirror_ubuntu-zesty-kernel.git] / virt / kvm / kvm_main.c

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 0edc366ecf89aaa3e4a3f7e3df121f13e6e4d7f5..59460652662091877c9018a963b5ba7fb14f1fcf 100644 (file)
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2512,19 +2512,25 @@ void kvm_io_bus_destroy(struct kvm_io_bus *bus)
        }
 }
 
-struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus,
-                                         gpa_t addr, int len, int is_write)
+/* kvm_io_bus_write - called under kvm->slots_lock */
+int kvm_io_bus_write(struct kvm_io_bus *bus, gpa_t addr,
+                    int len, const void *val)
 {
        int i;
+       for (i = 0; i < bus->dev_count; i++)
+               if (!kvm_iodevice_write(bus->devs[i], addr, len, val))
+                       return 0;
+       return -EOPNOTSUPP;
+}
 
-       for (i = 0; i < bus->dev_count; i++) {
-               struct kvm_io_device *pos = bus->devs[i];
-
-               if (kvm_iodevice_in_range(pos, addr, len, is_write))
-                       return pos;
-       }
-
-       return NULL;
+/* kvm_io_bus_read - called under kvm->slots_lock */
+int kvm_io_bus_read(struct kvm_io_bus *bus, gpa_t addr, int len, void *val)
+{
+       int i;
+       for (i = 0; i < bus->dev_count; i++)
+               if (!kvm_iodevice_read(bus->devs[i], addr, len, val))
+                       return 0;
+       return -EOPNOTSUPP;
 }
 
 void kvm_io_bus_register_dev(struct kvm *kvm, struct kvm_io_bus *bus,