DECLARE_GLOBAL_DATA_PTR;
/* Task priority level */
-static UINTN efi_tpl = TPL_APPLICATION;
+static efi_uintn_t efi_tpl = TPL_APPLICATION;
/* This list contains all the EFI objects our payload has access to */
LIST_HEAD(efi_obj_list);
event->is_queued = false;
}
-/*
- * Write a debug message for an EPI API service that is not implemented yet.
- *
- * @funcname function that is not yet implemented
- * @return EFI_UNSUPPORTED
- */
-static efi_status_t efi_unsupported(const char *funcname)
-{
- debug("EFI: App called into unimplemented function %s\n", funcname);
- return EFI_EXIT(EFI_UNSUPPORTED);
-}
-
/*
* Raise the task priority level.
*
* @new_tpl new value of the task priority level
* @return old value of the task priority level
*/
-static unsigned long EFIAPI efi_raise_tpl(UINTN new_tpl)
+static unsigned long EFIAPI efi_raise_tpl(efi_uintn_t new_tpl)
{
- UINTN old_tpl = efi_tpl;
+ efi_uintn_t old_tpl = efi_tpl;
EFI_ENTRY("0x%zx", new_tpl);
*
* @old_tpl value of the task priority level to be restored
*/
-static void EFIAPI efi_restore_tpl(UINTN old_tpl)
+static void EFIAPI efi_restore_tpl(efi_uintn_t old_tpl)
{
EFI_ENTRY("0x%zx", old_tpl);
* @return status code
*/
static efi_status_t EFIAPI efi_allocate_pages_ext(int type, int memory_type,
- unsigned long pages,
+ efi_uintn_t pages,
uint64_t *memory)
{
efi_status_t r;
- EFI_ENTRY("%d, %d, 0x%lx, %p", type, memory_type, pages, memory);
+ EFI_ENTRY("%d, %d, 0x%zx, %p", type, memory_type, pages, memory);
r = efi_allocate_pages(type, memory_type, pages, memory);
return EFI_EXIT(r);
}
* @return status code
*/
static efi_status_t EFIAPI efi_free_pages_ext(uint64_t memory,
- unsigned long pages)
+ efi_uintn_t pages)
{
efi_status_t r;
- EFI_ENTRY("%"PRIx64", 0x%lx", memory, pages);
+ EFI_ENTRY("%"PRIx64", 0x%zx", memory, pages);
r = efi_free_pages(memory, pages);
return EFI_EXIT(r);
}
* @return status code
*/
static efi_status_t EFIAPI efi_get_memory_map_ext(
- unsigned long *memory_map_size,
+ efi_uintn_t *memory_map_size,
struct efi_mem_desc *memory_map,
- unsigned long *map_key,
- unsigned long *descriptor_size,
+ efi_uintn_t *map_key,
+ efi_uintn_t *descriptor_size,
uint32_t *descriptor_version)
{
efi_status_t r;
* @return status code
*/
static efi_status_t EFIAPI efi_allocate_pool_ext(int pool_type,
- unsigned long size,
+ efi_uintn_t size,
void **buffer)
{
efi_status_t r;
- EFI_ENTRY("%d, %ld, %p", pool_type, size, buffer);
+ EFI_ENTRY("%d, %zd, %p", pool_type, size, buffer);
r = efi_allocate_pool(pool_type, size, buffer);
return EFI_EXIT(r);
}
return EFI_EXIT(r);
}
-static efi_status_t efi_create_handle(void **handle)
+/*
+ * Add a new object to the object list.
+ *
+ * The protocols list is initialized.
+ * The object handle is set.
+ *
+ * @obj object to be added
+ */
+void efi_add_handle(struct efi_object *obj)
+{
+ if (!obj)
+ return;
+ INIT_LIST_HEAD(&obj->protocols);
+ obj->handle = obj;
+ list_add_tail(&obj->link, &efi_obj_list);
+}
+
+/*
+ * Create handle.
+ *
+ * @handle new handle
+ * @return status code
+ */
+efi_status_t efi_create_handle(void **handle)
{
struct efi_object *obj;
efi_status_t r;
(void **)&obj);
if (r != EFI_SUCCESS)
return r;
- memset(obj, 0, sizeof(struct efi_object));
- obj->handle = obj;
- list_add_tail(&obj->link, &efi_obj_list);
- *handle = obj;
+ efi_add_handle(obj);
+ *handle = obj->handle;
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.
* @event created event
* @return status code
*/
-efi_status_t efi_create_event(uint32_t type, UINTN notify_tpl,
+efi_status_t efi_create_event(uint32_t type, efi_uintn_t notify_tpl,
void (EFIAPI *notify_function) (
struct efi_event *event,
void *context),
* @return status code
*/
static efi_status_t EFIAPI efi_create_event_ext(
- uint32_t type, UINTN notify_tpl,
+ uint32_t type, efi_uintn_t notify_tpl,
void (EFIAPI *notify_function) (
struct efi_event *event,
void *context),
* @index index of the event that was signaled
* @return status code
*/
-static efi_status_t EFIAPI efi_wait_for_event(unsigned long num_events,
+static efi_status_t EFIAPI efi_wait_for_event(efi_uintn_t num_events,
struct efi_event **event,
- size_t *index)
+ efi_uintn_t *index)
{
int i, j;
- EFI_ENTRY("%ld, %p, %p", num_events, event, index);
+ EFI_ENTRY("%zd, %p, %p", num_events, event, index);
/* Check parameters */
if (!num_events || !event)
* notification function for execution.
*
* @event event to signal
+ * @return status code
*/
static efi_status_t EFIAPI efi_signal_event_ext(struct efi_event *event)
{
}
/*
- * Install protocol interface.
+ * Find the internal EFI object for a handle.
*
- * This is the function for internal calls. For the API implementation of the
- * InstallProtocolInterface service see function
- * efi_install_protocol_interface_ext.
+ * @handle handle to find
+ * @return EFI object
+ */
+struct efi_object *efi_search_obj(const void *handle)
+{
+ struct efi_object *efiobj;
+
+ list_for_each_entry(efiobj, &efi_obj_list, link) {
+ if (efiobj->handle == handle)
+ return efiobj;
+ }
+
+ return NULL;
+}
+
+/*
+ * Install new protocol on a handle.
*
* @handle handle on which the protocol shall be installed
* @protocol GUID of the protocol to be installed
- * @protocol_interface_type type of the interface to be installed,
- * always EFI_NATIVE_INTERFACE
* @protocol_interface interface of the protocol implementation
* @return status code
*/
-static efi_status_t EFIAPI efi_install_protocol_interface(void **handle,
- const efi_guid_t *protocol, int protocol_interface_type,
- void *protocol_interface)
+efi_status_t efi_add_protocol(const void *handle, const efi_guid_t *protocol,
+ void *protocol_interface)
{
- struct list_head *lhandle;
- int i;
- efi_status_t r;
-
- if (!handle || !protocol ||
- protocol_interface_type != EFI_NATIVE_INTERFACE) {
- r = EFI_INVALID_PARAMETER;
- goto out;
- }
-
- /* Create new handle if requested. */
- if (!*handle) {
- r = efi_create_handle(handle);
- if (r != EFI_SUCCESS)
- goto out;
- }
- /* Find object. */
- list_for_each(lhandle, &efi_obj_list) {
- struct efi_object *efiobj;
- efiobj = list_entry(lhandle, struct efi_object, link);
-
- if (efiobj->handle != *handle)
- continue;
- /* Check if protocol is already installed on the handle. */
- for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
- struct efi_handler *handler = &efiobj->protocols[i];
-
- if (!handler->guid)
- continue;
- if (!guidcmp(handler->guid, protocol)) {
- r = EFI_INVALID_PARAMETER;
- goto out;
- }
- }
- /* Install protocol in first empty slot. */
- for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
- struct efi_handler *handler = &efiobj->protocols[i];
-
- if (handler->guid)
- continue;
+ struct efi_object *efiobj;
+ struct efi_handler *handler;
+ efi_status_t ret;
- handler->guid = protocol;
- handler->protocol_interface = protocol_interface;
- r = EFI_SUCCESS;
- goto out;
- }
- r = EFI_OUT_OF_RESOURCES;
- goto out;
- }
- r = EFI_INVALID_PARAMETER;
-out:
- return r;
+ efiobj = efi_search_obj(handle);
+ if (!efiobj)
+ return EFI_INVALID_PARAMETER;
+ ret = efi_search_protocol(handle, protocol, NULL);
+ if (ret != EFI_NOT_FOUND)
+ return EFI_INVALID_PARAMETER;
+ handler = calloc(1, sizeof(struct efi_handler));
+ if (!handler)
+ return EFI_OUT_OF_RESOURCES;
+ handler->guid = protocol;
+ handler->protocol_interface = protocol_interface;
+ list_add_tail(&handler->link, &efiobj->protocols);
+ return EFI_SUCCESS;
}
/*
* @protocol_interface interface of the protocol implementation
* @return status code
*/
-static efi_status_t EFIAPI efi_install_protocol_interface_ext(void **handle,
- const efi_guid_t *protocol, int protocol_interface_type,
- void *protocol_interface)
+static efi_status_t EFIAPI efi_install_protocol_interface(
+ void **handle, const efi_guid_t *protocol,
+ int protocol_interface_type, void *protocol_interface)
{
+ efi_status_t r;
+
EFI_ENTRY("%p, %pUl, %d, %p", handle, protocol, protocol_interface_type,
protocol_interface);
- return EFI_EXIT(efi_install_protocol_interface(handle, protocol,
- protocol_interface_type,
- protocol_interface));
+ if (!handle || !protocol ||
+ protocol_interface_type != EFI_NATIVE_INTERFACE) {
+ r = EFI_INVALID_PARAMETER;
+ goto out;
+ }
+
+ /* Create new handle if requested. */
+ if (!*handle) {
+ r = efi_create_handle(handle);
+ if (r != EFI_SUCCESS)
+ goto out;
+ debug("%sEFI: new handle %p\n", indent_string(nesting_level),
+ *handle);
+ } else {
+ debug("%sEFI: handle %p\n", indent_string(nesting_level),
+ *handle);
+ }
+ /* Add new protocol */
+ r = efi_add_protocol(*handle, protocol, protocol_interface);
+out:
+ return EFI_EXIT(r);
}
/*
/*
* Uninstall protocol interface.
*
- * This is the function for internal calls. For the API implementation of the
- * UninstallProtocolInterface service see function
- * efi_uninstall_protocol_interface_ext.
+ * This function implements the UninstallProtocolInterface service.
+ * See the Unified Extensible Firmware Interface (UEFI) specification
+ * for details.
*
* @handle handle from which the protocol shall be removed
* @protocol GUID of the protocol to be removed
* @protocol_interface interface to be removed
* @return status code
*/
-static efi_status_t EFIAPI efi_uninstall_protocol_interface(void *handle,
- const efi_guid_t *protocol, void *protocol_interface)
+static efi_status_t EFIAPI efi_uninstall_protocol_interface(
+ void *handle, const efi_guid_t *protocol,
+ void *protocol_interface)
{
- struct list_head *lhandle;
- int i;
- efi_status_t r = EFI_NOT_FOUND;
+ struct efi_handler *handler;
+ efi_status_t r;
+
+ EFI_ENTRY("%p, %pUl, %p", handle, protocol, protocol_interface);
if (!handle || !protocol) {
r = EFI_INVALID_PARAMETER;
goto out;
}
- list_for_each(lhandle, &efi_obj_list) {
- struct efi_object *efiobj;
- efiobj = list_entry(lhandle, struct efi_object, link);
-
- if (efiobj->handle != handle)
- continue;
-
- for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
- struct efi_handler *handler = &efiobj->protocols[i];
- const efi_guid_t *hprotocol = handler->guid;
-
- if (!hprotocol)
- continue;
- if (!guidcmp(hprotocol, protocol)) {
- if (handler->protocol_interface) {
- r = EFI_ACCESS_DENIED;
- } else {
- handler->guid = 0;
- r = EFI_SUCCESS;
- }
- goto out;
- }
- }
+ /* Find the protocol on the handle */
+ r = efi_search_protocol(handle, protocol, &handler);
+ if (r != EFI_SUCCESS)
+ goto out;
+ if (handler->protocol_interface) {
+ /* TODO disconnect controllers */
+ r = EFI_ACCESS_DENIED;
+ } else {
+ r = efi_remove_protocol(handle, protocol, protocol_interface);
}
-
out:
- return r;
-}
-
-/*
- * Uninstall protocol interface.
- *
- * This function implements the UninstallProtocolInterface service.
- * See the Unified Extensible Firmware Interface (UEFI) specification
- * for details.
- *
- * @handle handle from which the protocol shall be removed
- * @protocol GUID of the protocol to be removed
- * @protocol_interface interface to be removed
- * @return status code
- */
-static efi_status_t EFIAPI efi_uninstall_protocol_interface_ext(void *handle,
- const efi_guid_t *protocol, void *protocol_interface)
-{
- EFI_ENTRY("%p, %pUl, %p", handle, protocol, protocol_interface);
-
- return EFI_EXIT(efi_uninstall_protocol_interface(handle, protocol,
- protocol_interface));
+ return EFI_EXIT(r);
}
/*
const efi_guid_t *protocol, void *search_key,
struct efi_object *efiobj)
{
- int i;
+ efi_status_t ret;
switch (search_type) {
- case all_handles:
+ case ALL_HANDLES:
return 0;
- case by_register_notify:
+ case BY_REGISTER_NOTIFY:
+ /* TODO: RegisterProtocolNotify is not implemented yet */
return -1;
- case by_protocol:
- for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
- const efi_guid_t *guid = efiobj->protocols[i].guid;
- if (guid && !guidcmp(guid, protocol))
- return 0;
- }
+ case BY_PROTOCOL:
+ ret = efi_search_protocol(efiobj->handle, protocol, NULL);
+ return (ret != EFI_SUCCESS);
+ default:
+ /* Invalid search type */
return -1;
}
-
- return -1;
}
/*
static efi_status_t efi_locate_handle(
enum efi_locate_search_type search_type,
const efi_guid_t *protocol, void *search_key,
- unsigned long *buffer_size, efi_handle_t *buffer)
+ efi_uintn_t *buffer_size, efi_handle_t *buffer)
{
- struct list_head *lhandle;
- unsigned long size = 0;
+ struct efi_object *efiobj;
+ efi_uintn_t size = 0;
+
+ /* Check parameters */
+ switch (search_type) {
+ case ALL_HANDLES:
+ break;
+ case BY_REGISTER_NOTIFY:
+ if (!search_key)
+ return EFI_INVALID_PARAMETER;
+ /* RegisterProtocolNotify is not implemented yet */
+ return EFI_UNSUPPORTED;
+ case BY_PROTOCOL:
+ if (!protocol)
+ return EFI_INVALID_PARAMETER;
+ break;
+ default:
+ return EFI_INVALID_PARAMETER;
+ }
+
+ /*
+ * efi_locate_handle_buffer uses this function for
+ * the calculation of the necessary buffer size.
+ * So do not require a buffer for buffersize == 0.
+ */
+ if (!buffer_size || (*buffer_size && !buffer))
+ return EFI_INVALID_PARAMETER;
/* Count how much space we need */
- list_for_each(lhandle, &efi_obj_list) {
- struct efi_object *efiobj;
- efiobj = list_entry(lhandle, struct efi_object, link);
- if (!efi_search(search_type, protocol, search_key, efiobj)) {
+ list_for_each_entry(efiobj, &efi_obj_list, link) {
+ if (!efi_search(search_type, protocol, search_key, efiobj))
size += sizeof(void*);
- }
}
if (*buffer_size < size) {
return EFI_NOT_FOUND;
/* Then fill the array */
- list_for_each(lhandle, &efi_obj_list) {
- struct efi_object *efiobj;
- efiobj = list_entry(lhandle, struct efi_object, link);
- if (!efi_search(search_type, protocol, search_key, efiobj)) {
- *(buffer++) = efiobj->handle;
- }
+ list_for_each_entry(efiobj, &efi_obj_list, link) {
+ if (!efi_search(search_type, protocol, search_key, efiobj))
+ *buffer++ = efiobj->handle;
}
return EFI_SUCCESS;
static efi_status_t EFIAPI efi_locate_handle_ext(
enum efi_locate_search_type search_type,
const efi_guid_t *protocol, void *search_key,
- unsigned long *buffer_size, efi_handle_t *buffer)
+ efi_uintn_t *buffer_size, efi_handle_t *buffer)
{
EFI_ENTRY("%d, %pUl, %p, %p, %p", search_type, protocol, search_key,
buffer_size, buffer);
buffer_size, buffer));
}
-/*
- * Get the device path and handle of an device implementing a protocol.
- *
- * This function implements the LocateDevicePath service.
- * See the Unified Extensible Firmware Interface (UEFI) specification
- * for details.
- *
- * @protocol GUID of the protocol
- * @device_path device path
- * @device handle of the device
- * @return status code
- */
-static efi_status_t EFIAPI efi_locate_device_path(
- const efi_guid_t *protocol,
- struct efi_device_path **device_path,
- efi_handle_t *device)
-{
- struct efi_object *efiobj;
-
- EFI_ENTRY("%pUl, %p, %p", protocol, device_path, device);
-
- efiobj = efi_dp_find_obj(*device_path, device_path);
- if (!efiobj)
- return EFI_EXIT(EFI_NOT_FOUND);
-
- *device = efiobj->handle;
-
- return EFI_EXIT(EFI_SUCCESS);
-}
-
/* Collapses configuration table entries, removing index i */
static void efi_remove_configuration_table(int i)
{
* Initialize a loaded_image_info + loaded_image_info object with correct
* protocols, boot-device, etc.
*
- * @info loaded image info to be passed to the enty point of the
+ * @info loaded image info to be passed to the entry point of the
* image
* @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;
+
+ /* Add internal object to object list */
+ efi_add_handle(obj);
+ /* efi_exit() assumes that the handle points to the info */
obj->handle = info;
+ info->file_path = file_path;
+ if (device_path)
+ info->device_handle = efi_dp_find_obj(device_path, NULL);
+
/*
* When asking for the device path interface, return
* bootefi_device_path
*/
- obj->protocols[0].guid = &efi_guid_device_path;
- obj->protocols[0].protocol_interface = device_path;
+ ret = efi_add_protocol(obj->handle, &efi_guid_device_path, device_path);
+ if (ret != EFI_SUCCESS)
+ goto failure;
/*
* When asking for the loaded_image interface, just
* return handle which points to loaded_image_info
*/
- obj->protocols[1].guid = &efi_guid_loaded_image;
- obj->protocols[1].protocol_interface = info;
-
- obj->protocols[2].guid = &efi_guid_console_control;
- obj->protocols[2].protocol_interface = (void *)&efi_console_control;
+ ret = efi_add_protocol(obj->handle, &efi_guid_loaded_image, info);
+ if (ret != EFI_SUCCESS)
+ goto failure;
- obj->protocols[3].guid = &efi_guid_device_path_to_text_protocol;
- obj->protocols[3].protocol_interface =
- (void *)&efi_device_path_to_text;
+ ret = efi_add_protocol(obj->handle, &efi_guid_console_control,
+ (void *)&efi_console_control);
+ if (ret != EFI_SUCCESS)
+ goto failure;
- info->file_path = file_path;
- info->device_handle = efi_dp_find_obj(device_path, NULL);
+ ret = efi_add_protocol(obj->handle,
+ &efi_guid_device_path_to_text_protocol,
+ (void *)&efi_device_path_to_text);
+ if (ret != EFI_SUCCESS)
+ goto failure;
- list_add_tail(&obj->link, &efi_obj_list);
+ return ret;
+failure:
+ printf("ERROR: Failure to install protocols for loaded image\n");
+ return ret;
}
/*
*
* @file_path the path of the image to load
* @buffer buffer containing the loaded image
+ * @return status code
*/
efi_status_t efi_load_image_from_path(struct efi_device_path *file_path,
void **buffer)
{
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;
}
-
- *image_handle = info;
-
+ 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);
}
/*
* @image_handle handle of the image
* @exit_data_size size of the buffer
* @exit_data buffer to receive the exit data of the called image
+ * @return status code
*/
static efi_status_t EFIAPI efi_start_image(efi_handle_t image_handle,
unsigned long *exit_data_size,
* @exit_status status code
* @exit_data_size size of the buffer in bytes
* @exit_data buffer with data describing an error
+ * @return status code
*/
static efi_status_t EFIAPI efi_exit(efi_handle_t image_handle,
efi_status_t exit_status, unsigned long exit_data_size,
int16_t *exit_data)
{
+ /*
+ * We require that the handle points to the original loaded
+ * image protocol interface.
+ *
+ * For getting the longjmp address this is safer than locating
+ * the protocol because the protocol may have been reinstalled
+ * pointing to another memory location.
+ *
+ * TODO: We should call the unload procedure of the loaded
+ * image protocol.
+ */
struct efi_loaded_image *loaded_image_info = (void*)image_handle;
EFI_ENTRY("%p, %ld, %ld, %p", image_handle, exit_status,
panic("EFI application exited");
}
-/*
- * Find the internal EFI object for a handle.
- *
- * @handle handle to find
- * @return EFI object
- */
-static struct efi_object *efi_search_obj(void *handle)
-{
- struct list_head *lhandle;
-
- list_for_each(lhandle, &efi_obj_list) {
- struct efi_object *efiobj;
- efiobj = list_entry(lhandle, struct efi_object, link);
- if (efiobj->handle == handle)
- return efiobj;
- }
-
- return NULL;
-}
-
/*
* Unload an EFI image.
*
/* Make sure that notification functions are not called anymore */
efi_tpl = TPL_HIGH_LEVEL;
-#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
- /* save any EFI variables that have been written: */
- env_save();
-#endif
+ /* XXX Should persist EFI variables here */
board_quiesce_devices();
bootm_disable_interrupts();
/* Give the payload some time to boot */
+ efi_set_watchdog(0);
WATCHDOG_RESET();
return EFI_EXIT(EFI_SUCCESS);
/*
* Reset the watchdog timer.
*
- * This function implements the WatchdogTimer service.
+ * This function implements the SetWatchdogTimer service.
* See the Unified Extensible Firmware Interface (UEFI) specification
* for details.
*
* @watchdog_code code to be logged when resetting
* @data_size size of buffer in bytes
* @watchdog_data buffer with data describing the reset reason
+ * @return status code
*/
static efi_status_t EFIAPI efi_set_watchdog_timer(unsigned long timeout,
uint64_t watchdog_code,
{
EFI_ENTRY("%ld, 0x%"PRIx64", %ld, %p", timeout, watchdog_code,
data_size, watchdog_data);
- return efi_unsupported(__func__);
+ return EFI_EXIT(efi_set_watchdog(timeout));
}
/*
static efi_status_t EFIAPI efi_open_protocol_information(efi_handle_t handle,
const efi_guid_t *protocol,
struct efi_open_protocol_info_entry **entry_buffer,
- unsigned long *entry_count)
+ efi_uintn_t *entry_count)
{
EFI_ENTRY("%p, %pUl, %p, %p", handle, protocol, entry_buffer,
entry_count);
* @handle handle for which the information is retrieved
* @protocol_buffer buffer with protocol GUIDs
* @protocol_buffer_count number of entries in the buffer
+ * @return status code
*/
static efi_status_t EFIAPI efi_protocols_per_handle(void *handle,
efi_guid_t ***protocol_buffer,
- unsigned long *protocol_buffer_count)
+ efi_uintn_t *protocol_buffer_count)
{
unsigned long buffer_size;
struct efi_object *efiobj;
- unsigned long i, j;
- struct list_head *lhandle;
+ struct list_head *protocol_handle;
efi_status_t r;
EFI_ENTRY("%p, %p, %p", handle, protocol_buffer,
*protocol_buffer = NULL;
*protocol_buffer_count = 0;
- list_for_each(lhandle, &efi_obj_list) {
- efiobj = list_entry(lhandle, struct efi_object, link);
- if (efiobj->handle != handle)
- continue;
+ efiobj = efi_search_obj(handle);
+ if (!efiobj)
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
- /* Count protocols */
- for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
- if (efiobj->protocols[i].guid)
- ++*protocol_buffer_count;
- }
- /* Copy guids */
- if (*protocol_buffer_count) {
- buffer_size = sizeof(efi_guid_t *) *
- *protocol_buffer_count;
- r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES,
- buffer_size,
- (void **)protocol_buffer);
- if (r != EFI_SUCCESS)
- return EFI_EXIT(r);
- j = 0;
- for (i = 0; i < ARRAY_SIZE(efiobj->protocols); ++i) {
- if (efiobj->protocols[i].guid) {
- (*protocol_buffer)[j] = (void *)
- efiobj->protocols[i].guid;
- ++j;
- }
- }
+ /* Count protocols */
+ list_for_each(protocol_handle, &efiobj->protocols) {
+ ++*protocol_buffer_count;
+ }
+
+ /* Copy guids */
+ if (*protocol_buffer_count) {
+ size_t j = 0;
+
+ buffer_size = sizeof(efi_guid_t *) * *protocol_buffer_count;
+ r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES, buffer_size,
+ (void **)protocol_buffer);
+ if (r != EFI_SUCCESS)
+ return EFI_EXIT(r);
+ list_for_each(protocol_handle, &efiobj->protocols) {
+ struct efi_handler *protocol;
+
+ protocol = list_entry(protocol_handle,
+ struct efi_handler, link);
+ (*protocol_buffer)[j] = (void *)protocol->guid;
+ ++j;
}
- break;
}
return EFI_EXIT(EFI_SUCCESS);
static efi_status_t EFIAPI efi_locate_handle_buffer(
enum efi_locate_search_type search_type,
const efi_guid_t *protocol, void *search_key,
- unsigned long *no_handles, efi_handle_t **buffer)
+ efi_uintn_t *no_handles, efi_handle_t **buffer)
{
efi_status_t r;
- unsigned long buffer_size = 0;
+ efi_uintn_t buffer_size = 0;
EFI_ENTRY("%d, %pUl, %p, %p, %p", search_type, protocol, search_key,
no_handles, buffer);
* @protocol GUID of the protocol
* @registration registration key passed to the notification function
* @protocol_interface interface implementing the protocol
+ * @return status code
*/
static efi_status_t EFIAPI efi_locate_protocol(const efi_guid_t *protocol,
void *registration,
void **protocol_interface)
{
struct list_head *lhandle;
- int i;
+ efi_status_t ret;
EFI_ENTRY("%pUl, %p, %p", protocol, registration, protocol_interface);
if (!protocol || !protocol_interface)
return EFI_EXIT(EFI_INVALID_PARAMETER);
- EFI_PRINT_GUID("protocol", protocol);
-
list_for_each(lhandle, &efi_obj_list) {
struct efi_object *efiobj;
+ struct efi_handler *handler;
efiobj = list_entry(lhandle, struct efi_object, link);
- for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
- struct efi_handler *handler = &efiobj->protocols[i];
-
- if (!handler->guid)
- continue;
- if (!guidcmp(handler->guid, protocol)) {
- *protocol_interface =
- handler->protocol_interface;
- return EFI_EXIT(EFI_SUCCESS);
- }
+
+ ret = efi_search_protocol(efiobj->handle, protocol, &handler);
+ if (ret == EFI_SUCCESS) {
+ *protocol_interface = handler->protocol_interface;
+ return EFI_EXIT(EFI_SUCCESS);
}
}
*protocol_interface = NULL;
return EFI_EXIT(EFI_NOT_FOUND);
}
+/*
+ * Get the device path and handle of an device implementing a protocol.
+ *
+ * This function implements the LocateDevicePath service.
+ * See the Unified Extensible Firmware Interface (UEFI) specification
+ * for details.
+ *
+ * @protocol GUID of the protocol
+ * @device_path device path
+ * @device handle of the device
+ * @return status code
+ */
+static efi_status_t EFIAPI efi_locate_device_path(
+ const efi_guid_t *protocol,
+ struct efi_device_path **device_path,
+ efi_handle_t *device)
+{
+ struct efi_device_path *dp;
+ size_t i;
+ struct efi_handler *handler;
+ efi_handle_t *handles;
+ size_t len, len_dp;
+ size_t len_best = 0;
+ efi_uintn_t no_handles;
+ u8 *remainder;
+ efi_status_t ret;
+
+ EFI_ENTRY("%pUl, %p, %p", protocol, device_path, device);
+
+ if (!protocol || !device_path || !*device_path || !device) {
+ ret = EFI_INVALID_PARAMETER;
+ goto out;
+ }
+
+ /* Find end of device path */
+ len = efi_dp_size(*device_path);
+
+ /* Get all handles implementing the protocol */
+ ret = EFI_CALL(efi_locate_handle_buffer(BY_PROTOCOL, protocol, NULL,
+ &no_handles, &handles));
+ if (ret != EFI_SUCCESS)
+ goto out;
+
+ for (i = 0; i < no_handles; ++i) {
+ /* Find the device path protocol */
+ ret = efi_search_protocol(handles[i], &efi_guid_device_path,
+ &handler);
+ if (ret != EFI_SUCCESS)
+ continue;
+ dp = (struct efi_device_path *)handler->protocol_interface;
+ len_dp = efi_dp_size(dp);
+ /*
+ * This handle can only be a better fit
+ * if its device path length is longer than the best fit and
+ * if its device path length is shorter of equal the searched
+ * device path.
+ */
+ if (len_dp <= len_best || len_dp > len)
+ continue;
+ /* Check if dp is a subpath of device_path */
+ if (memcmp(*device_path, dp, len_dp))
+ continue;
+ *device = handles[i];
+ len_best = len_dp;
+ }
+ if (len_best) {
+ remainder = (u8 *)*device_path + len_best;
+ *device_path = (struct efi_device_path *)remainder;
+ ret = EFI_SUCCESS;
+ } else {
+ ret = EFI_NOT_FOUND;
+ }
+out:
+ return EFI_EXIT(ret);
+}
+
/*
* Install multiple protocol interfaces.
*
if (!protocol)
break;
protocol_interface = va_arg(argptr, void*);
- r = efi_install_protocol_interface(handle, protocol,
- EFI_NATIVE_INTERFACE,
- protocol_interface);
+ r = EFI_CALL(efi_install_protocol_interface(
+ handle, protocol,
+ EFI_NATIVE_INTERFACE,
+ protocol_interface));
if (r != EFI_SUCCESS)
break;
i++;
if (r == EFI_SUCCESS)
return EFI_EXIT(r);
- /* If an error occured undo all changes. */
+ /* If an error occurred undo all changes. */
va_start(argptr, handle);
for (; i; --i) {
protocol = va_arg(argptr, efi_guid_t*);
protocol_interface = va_arg(argptr, void*);
- efi_uninstall_protocol_interface(handle, protocol,
- protocol_interface);
+ EFI_CALL(efi_uninstall_protocol_interface(handle, protocol,
+ protocol_interface));
}
va_end(argptr);
void *handle, ...)
{
EFI_ENTRY("%p", handle);
- return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+ va_list argptr;
+ const efi_guid_t *protocol;
+ void *protocol_interface;
+ efi_status_t r = EFI_SUCCESS;
+ size_t i = 0;
+
+ if (!handle)
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+ va_start(argptr, handle);
+ for (;;) {
+ protocol = va_arg(argptr, efi_guid_t*);
+ if (!protocol)
+ break;
+ protocol_interface = va_arg(argptr, void*);
+ r = EFI_CALL(efi_uninstall_protocol_interface(
+ handle, protocol,
+ protocol_interface));
+ if (r != EFI_SUCCESS)
+ break;
+ i++;
+ }
+ va_end(argptr);
+ if (r == EFI_SUCCESS)
+ return EFI_EXIT(r);
+
+ /* If an error occurred undo all changes. */
+ va_start(argptr, handle);
+ for (; i; --i) {
+ protocol = va_arg(argptr, efi_guid_t*);
+ protocol_interface = va_arg(argptr, void*);
+ EFI_CALL(efi_install_protocol_interface(&handle, protocol,
+ EFI_NATIVE_INTERFACE,
+ protocol_interface));
+ }
+ va_end(argptr);
+
+ return EFI_EXIT(r);
}
/*
void **protocol_interface, void *agent_handle,
void *controller_handle, uint32_t attributes)
{
- struct list_head *lhandle;
- int i;
+ struct efi_handler *handler;
efi_status_t r = EFI_INVALID_PARAMETER;
EFI_ENTRY("%p, %pUl, %p, %p, %p, 0x%x", handle, protocol,
goto out;
}
- EFI_PRINT_GUID("protocol", protocol);
-
switch (attributes) {
case EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL:
case EFI_OPEN_PROTOCOL_GET_PROTOCOL:
goto out;
}
- list_for_each(lhandle, &efi_obj_list) {
- struct efi_object *efiobj;
- efiobj = list_entry(lhandle, struct efi_object, link);
-
- if (efiobj->handle != handle)
- continue;
-
- for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
- struct efi_handler *handler = &efiobj->protocols[i];
- const efi_guid_t *hprotocol = handler->guid;
- if (!hprotocol)
- continue;
- if (!guidcmp(hprotocol, protocol)) {
- if (attributes !=
- EFI_OPEN_PROTOCOL_TEST_PROTOCOL) {
- *protocol_interface =
- handler->protocol_interface;
- }
- r = EFI_SUCCESS;
- goto out;
- }
- }
- goto unsupported;
- }
+ r = efi_search_protocol(handle, protocol, &handler);
+ if (r != EFI_SUCCESS)
+ goto out;
-unsupported:
- r = EFI_UNSUPPORTED;
+ if (attributes != EFI_OPEN_PROTOCOL_TEST_PROTOCOL)
+ *protocol_interface = handler->protocol_interface;
out:
return EFI_EXIT(r);
}
.signal_event = efi_signal_event_ext,
.close_event = efi_close_event,
.check_event = efi_check_event,
- .install_protocol_interface = efi_install_protocol_interface_ext,
+ .install_protocol_interface = efi_install_protocol_interface,
.reinstall_protocol_interface = efi_reinstall_protocol_interface,
- .uninstall_protocol_interface = efi_uninstall_protocol_interface_ext,
+ .uninstall_protocol_interface = efi_uninstall_protocol_interface,
.handle_protocol = efi_handle_protocol,
.reserved = NULL,
.register_protocol_notify = efi_register_protocol_notify,
projects / u-boot / blobdiff