return r;
}
+/*
+ * Find a protocol on a handle.
+ *
+ * @handle handle
+ * @protocol_guid GUID of the protocol
+ * @handler reference to the protocol
+ * @return status code
+ */
+efi_status_t efi_search_protocol(const void *handle,
+ const efi_guid_t *protocol_guid,
+ struct efi_handler **handler)
+{
+ struct efi_object *efiobj;
+ struct list_head *lhandle;
+
+ if (!handle || !protocol_guid)
+ return EFI_INVALID_PARAMETER;
+ efiobj = efi_search_obj(handle);
+ if (!efiobj)
+ return EFI_INVALID_PARAMETER;
+ list_for_each(lhandle, &efiobj->protocols) {
+ struct efi_handler *protocol;
+
+ protocol = list_entry(lhandle, struct efi_handler, link);
+ if (!guidcmp(protocol->guid, protocol_guid)) {
+ if (handler)
+ *handler = protocol;
+ return EFI_SUCCESS;
+ }
+ }
+ return EFI_NOT_FOUND;
+}
+
+/*
+ * Delete protocol from a handle.
+ *
+ * @handle handle from which the protocol shall be deleted
+ * @protocol GUID of the protocol to be deleted
+ * @protocol_interface interface of the protocol implementation
+ * @return status code
+ */
+efi_status_t efi_remove_protocol(const void *handle, const efi_guid_t *protocol,
+ void *protocol_interface)
+{
+ struct efi_handler *handler;
+ efi_status_t ret;
+
+ ret = efi_search_protocol(handle, protocol, &handler);
+ if (ret != EFI_SUCCESS)
+ return ret;
+ if (guidcmp(handler->guid, protocol))
+ return EFI_INVALID_PARAMETER;
+ list_del(&handler->link);
+ free(handler);
+ return EFI_SUCCESS;
+}
+
+/*
+ * Delete all protocols from a handle.
+ *
+ * @handle handle from which the protocols shall be deleted
+ * @return status code
+ */
+efi_status_t efi_remove_all_protocols(const void *handle)
+{
+ struct efi_object *efiobj;
+ struct list_head *lhandle;
+ struct list_head *pos;
+
+ efiobj = efi_search_obj(handle);
+ if (!efiobj)
+ return EFI_INVALID_PARAMETER;
+ list_for_each_safe(lhandle, pos, &efiobj->protocols) {
+ struct efi_handler *protocol;
+ efi_status_t ret;
+
+ protocol = list_entry(lhandle, struct efi_handler, link);
+
+ ret = efi_remove_protocol(handle, protocol->guid,
+ protocol->protocol_interface);
+ if (ret != EFI_SUCCESS)
+ return ret;
+ }
+ return EFI_SUCCESS;
+}
+
+/*
+ * Delete handle.
+ *
+ * @handle handle to delete
+ */
+void efi_delete_handle(struct efi_object *obj)
+{
+ if (!obj)
+ return;
+ efi_remove_all_protocols(obj->handle);
+ list_del(&obj->link);
+ free(obj);
+}
+
/*
* Our event capabilities are very limited. Only a small limited
* number of events is allowed to coexist.
return NULL;
}
-/*
- * Find a protocol on a handle.
- *
- * @handle handle
- * @protocol_guid GUID of the protocol
- * @handler reference to the protocol
- * @return status code
- */
-efi_status_t efi_search_protocol(const void *handle,
- const efi_guid_t *protocol_guid,
- struct efi_handler **handler)
-{
- struct efi_object *efiobj;
- struct list_head *lhandle;
-
- if (!handle || !protocol_guid)
- return EFI_INVALID_PARAMETER;
- efiobj = efi_search_obj(handle);
- if (!efiobj)
- return EFI_INVALID_PARAMETER;
- list_for_each(lhandle, &efiobj->protocols) {
- struct efi_handler *protocol;
-
- protocol = list_entry(lhandle, struct efi_handler, link);
- if (!guidcmp(protocol->guid, protocol_guid)) {
- if (handler)
- *handler = protocol;
- return EFI_SUCCESS;
- }
- }
- return EFI_NOT_FOUND;
-}
-
/*
* Install new protocol on a handle.
*
return EFI_SUCCESS;
}
-/*
- * Delete protocol from a handle.
- *
- * @handle handle from which the protocol shall be deleted
- * @protocol GUID of the protocol to be deleted
- * @protocol_interface interface of the protocol implementation
- * @return status code
- */
-efi_status_t efi_remove_protocol(const void *handle, const efi_guid_t *protocol,
- void *protocol_interface)
-{
- struct efi_handler *handler;
- efi_status_t ret;
-
- ret = efi_search_protocol(handle, protocol, &handler);
- if (ret != EFI_SUCCESS)
- return ret;
- if (guidcmp(handler->guid, protocol))
- return EFI_INVALID_PARAMETER;
- list_del(&handler->link);
- free(handler);
- return EFI_SUCCESS;
-}
-
-/*
- * Delete all protocols from a handle.
- *
- * @handle handle from which the protocols shall be deleted
- * @return status code
- */
-efi_status_t efi_remove_all_protocols(const void *handle)
-{
- struct efi_object *efiobj;
- struct list_head *lhandle;
- struct list_head *pos;
-
- efiobj = efi_search_obj(handle);
- if (!efiobj)
- return EFI_INVALID_PARAMETER;
- list_for_each_safe(lhandle, pos, &efiobj->protocols) {
- struct efi_handler *protocol;
- efi_status_t ret;
-
- protocol = list_entry(lhandle, struct efi_handler, link);
-
- ret = efi_remove_protocol(handle, protocol->guid,
- protocol->protocol_interface);
- if (ret != EFI_SUCCESS)
- return ret;
- }
- return EFI_SUCCESS;
-}
-
/*
* Install protocol interface.
*
* @obj internal object associated with the loaded image
* @device_path device path of the loaded image
* @file_path file path of the loaded image
+ * @return status code
*/
-void efi_setup_loaded_image(struct efi_loaded_image *info, struct efi_object *obj,
- struct efi_device_path *device_path,
- struct efi_device_path *file_path)
+efi_status_t efi_setup_loaded_image(
+ struct efi_loaded_image *info, struct efi_object *obj,
+ struct efi_device_path *device_path,
+ struct efi_device_path *file_path)
{
efi_status_t ret;
if (ret != EFI_SUCCESS)
goto failure;
- return;
+ return ret;
failure:
printf("ERROR: Failure to install protocols for loaded image\n");
+ return ret;
}
/*
{
struct efi_loaded_image *info;
struct efi_object *obj;
+ efi_status_t ret;
EFI_ENTRY("%d, %p, %p, %p, %ld, %p", boot_policy, parent_image,
file_path, source_buffer, source_size, image_handle);
if (!source_buffer) {
struct efi_device_path *dp, *fp;
- efi_status_t ret;
ret = efi_load_image_from_path(file_path, &source_buffer);
- if (ret != EFI_SUCCESS) {
- free(info);
- free(obj);
- return EFI_EXIT(ret);
- }
-
+ if (ret != EFI_SUCCESS)
+ goto failure;
/*
* split file_path which contains both the device and
* file parts:
*/
efi_dp_split_file_path(file_path, &dp, &fp);
-
- efi_setup_loaded_image(info, obj, dp, fp);
+ ret = efi_setup_loaded_image(info, obj, dp, fp);
+ if (ret != EFI_SUCCESS)
+ goto failure;
} else {
/* In this case, file_path is the "device" path, ie.
* something like a HARDWARE_DEVICE:MEMORY_MAPPED
*/
- efi_setup_loaded_image(info, obj, file_path, NULL);
+ ret = efi_setup_loaded_image(info, obj, file_path, NULL);
+ if (ret != EFI_SUCCESS)
+ goto failure;
}
-
info->reserved = efi_load_pe(source_buffer, info);
if (!info->reserved) {
- free(info);
- free(obj);
- return EFI_EXIT(EFI_UNSUPPORTED);
+ ret = EFI_UNSUPPORTED;
+ goto failure;
}
-
info->system_table = &systab;
info->parent_handle = parent_image;
*image_handle = obj->handle;
-
return EFI_EXIT(EFI_SUCCESS);
+failure:
+ free(info);
+ efi_delete_handle(obj);
+ return EFI_EXIT(ret);
}
/*
{
ulong (*entry)(void *image_handle, struct efi_system_table *st);
struct efi_loaded_image *info = image_handle;
+ efi_status_t ret;
EFI_ENTRY("%p, %p, %p", image_handle, exit_data_size, exit_data);
entry = info->reserved;
/* call the image! */
if (setjmp(&info->exit_jmp)) {
- /* We returned from the child image */
+ /*
+ * We called the entry point of the child image with EFI_CALL
+ * in the lines below. The child image called the Exit() boot
+ * service efi_exit() which executed the long jump that brought
+ * us to the current line. This implies that the second half
+ * of the EFI_CALL macro has not been executed.
+ */
+#ifdef CONFIG_ARM
+ /*
+ * efi_exit() called efi_restore_gd(). We have to undo this
+ * otherwise __efi_entry_check() will put the wrong value into
+ * app_gd.
+ */
+ gd = app_gd;
+#endif
+ /*
+ * To get ready to call EFI_EXIT below we have to execute the
+ * missed out steps of EFI_CALL.
+ */
+ assert(__efi_entry_check());
+ debug("%sEFI: %lu returned by started image\n",
+ __efi_nesting_dec(),
+ (unsigned long)((uintptr_t)info->exit_status &
+ ~EFI_ERROR_MASK));
return EFI_EXIT(info->exit_status);
}
- __efi_nesting_dec();
- __efi_exit_check();
- entry(image_handle, &systab);
- __efi_entry_check();
- __efi_nesting_inc();
+ ret = EFI_CALL(entry(image_handle, &systab));
/* Should usually never get here */
- return EFI_EXIT(EFI_SUCCESS);
+ return EFI_EXIT(ret);
}
/*
exit_data_size, exit_data);
/* Make sure entry/exit counts for EFI world cross-overs match */
- __efi_exit_check();
+ EFI_EXIT(exit_status);
/*
* But longjmp out with the U-Boot gd, not the application's, as
};
-static uint16_t __efi_runtime_data firmware_vendor[] =
- { 'D','a','s',' ','U','-','b','o','o','t',0 };
+static uint16_t __efi_runtime_data firmware_vendor[] = L"Das U-Boot";
struct efi_system_table __efi_runtime_data systab = {
.hdr = {
projects / u-boot / blobdiff