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efi_loader: boottime: add loaded image device path protocol to image handle

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To meet UEFI spec v2.7a section 9.2, we should add
EFI_LOADED_IMAGE_DEVICE_PATH_PROTOCOL to image handle,
instead of EFI_DEVICE_PATH_PROTOCOL.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
AKASHI Takahiro 2019-03-27 13:40:32 +09:00 committed by Heinrich Schuchardt
parent 734d3252af
commit bc8fc32855
4 changed files with 19 additions and 7 deletions
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4
include/efi_api.h
View File

@ -333,6 +333,10 @@ struct efi_system_table {
EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, \
0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
#define LOADED_IMAGE_DEVICE_PATH_GUID \
EFI_GUID(0xbc62157e, 0x3e33, 0x4fec, \
0x99, 0x20, 0x2d, 0x3b, 0x36, 0xd7, 0x50, 0xdf)
#define EFI_LOADED_IMAGE_PROTOCOL_REVISION 0x1000
struct efi_loaded_image {

1
include/efi_loader.h
View File

@ -135,6 +135,7 @@ extern const efi_guid_t efi_guid_event_group_reset_system;
/* GUID of the device tree table */
extern const efi_guid_t efi_guid_fdt;
extern const efi_guid_t efi_guid_loaded_image;
extern const efi_guid_t efi_guid_loaded_image_device_path;
extern const efi_guid_t efi_guid_device_path_to_text_protocol;
extern const efi_guid_t efi_simple_file_system_protocol_guid;
extern const efi_guid_t efi_file_info_guid;

19
lib/efi_loader/efi_boottime.c
View File

@ -1522,6 +1522,7 @@ efi_status_t efi_setup_loaded_image(struct efi_device_path *device_path,
efi_status_t ret;
struct efi_loaded_image *info = NULL;
struct efi_loaded_image_obj *obj = NULL;
struct efi_device_path *dp;
/* In case of EFI_OUT_OF_RESOURCES avoid illegal free by caller. */
*handle_ptr = NULL;
@ -1545,15 +1546,19 @@ efi_status_t efi_setup_loaded_image(struct efi_device_path *device_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
*/
ret = efi_add_protocol(&obj->header,
&efi_guid_device_path, device_path);
if (ret != EFI_SUCCESS)
dp = efi_dp_append(device_path, file_path);
if (!dp) {
ret = EFI_OUT_OF_RESOURCES;
goto failure;
}
} else {
dp = NULL;
}
ret = efi_add_protocol(&obj->header,
&efi_guid_loaded_image_device_path, dp);
if (ret != EFI_SUCCESS)
goto failure;
/*
* When asking for the loaded_image interface, just

2
lib/efi_loader/efi_image_loader.c
View File

@ -14,6 +14,8 @@
const efi_guid_t efi_global_variable_guid = EFI_GLOBAL_VARIABLE_GUID;
const efi_guid_t efi_guid_device_path = DEVICE_PATH_GUID;
const efi_guid_t efi_guid_loaded_image = LOADED_IMAGE_GUID;
const efi_guid_t efi_guid_loaded_image_device_path
= LOADED_IMAGE_DEVICE_PATH_GUID;
const efi_guid_t efi_simple_file_system_protocol_guid =
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID;
const efi_guid_t efi_file_info_guid = EFI_FILE_INFO_GUID;