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Diffstat (limited to 'drivers/io/io_fip.c')
-rw-r--r--drivers/io/io_fip.c167
1 files changed, 41 insertions, 126 deletions
diff --git a/drivers/io/io_fip.c b/drivers/io/io_fip.c
index 0cec8044..abb35118 100644
--- a/drivers/io/io_fip.c
+++ b/drivers/io/io_fip.c
@@ -1,31 +1,7 @@
/*
- * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2017, ARM Limited and Contributors. All rights reserved.
*
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * Neither the name of ARM nor the names of its contributors may be used
- * to endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
+ * SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
@@ -40,6 +16,7 @@
#include <platform_def.h>
#include <stdint.h>
#include <string.h>
+#include <utils.h>
#include <uuid.h>
/* Useful for printing UUIDs when debugging.*/
@@ -51,11 +28,6 @@
x.node[4], x.node[5]
typedef struct {
- const char *name;
- const uuid_t uuid;
-} plat_fip_name_uuid_t;
-
-typedef struct {
/* Put file_pos above the struct to allow {0} on static init.
* It is a workaround for a known bug in GCC
* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119
@@ -64,37 +36,6 @@ typedef struct {
fip_toc_entry_t entry;
} file_state_t;
-static const plat_fip_name_uuid_t name_uuid[] = {
- {BL2_IMAGE_NAME, UUID_TRUSTED_BOOT_FIRMWARE_BL2},
-#ifdef BL30_IMAGE_NAME
- /* BL3-0 is optional in the platform */
- {BL30_IMAGE_NAME, UUID_SCP_FIRMWARE_BL30},
-#endif /* BL30_IMAGE_NAME */
- {BL31_IMAGE_NAME, UUID_EL3_RUNTIME_FIRMWARE_BL31},
-#ifdef BL32_IMAGE_NAME
- /* BL3-2 is optional in the platform */
- {BL32_IMAGE_NAME, UUID_SECURE_PAYLOAD_BL32},
-#endif /* BL32_IMAGE_NAME */
- {BL33_IMAGE_NAME, UUID_NON_TRUSTED_FIRMWARE_BL33},
-#if TRUSTED_BOARD_BOOT
- /* Certificates */
- {BL2_CERT_NAME, UUID_TRUSTED_BOOT_FIRMWARE_BL2_CERT},
- {TRUSTED_KEY_CERT_NAME, UUID_TRUSTED_KEY_CERT},
-#ifdef BL30_KEY_CERT_NAME
- {BL30_KEY_CERT_NAME, UUID_SCP_FIRMWARE_BL30_KEY_CERT},
-#endif
- {BL31_KEY_CERT_NAME, UUID_EL3_RUNTIME_FIRMWARE_BL31_KEY_CERT},
- {BL32_KEY_CERT_NAME, UUID_SECURE_PAYLOAD_BL32_KEY_CERT},
- {BL33_KEY_CERT_NAME, UUID_NON_TRUSTED_FIRMWARE_BL33_KEY_CERT},
-#ifdef BL30_CERT_NAME
- {BL30_CERT_NAME, UUID_SCP_FIRMWARE_BL30_CERT},
-#endif
- {BL31_CERT_NAME, UUID_EL3_RUNTIME_FIRMWARE_BL31_CERT},
- {BL32_CERT_NAME, UUID_SECURE_PAYLOAD_BL32_CERT},
- {BL33_CERT_NAME, UUID_NON_TRUSTED_FIRMWARE_BL33_CERT},
-#endif /* TRUSTED_BOARD_BOOT */
-};
-
static const uuid_t uuid_null = {0};
static file_state_t current_file = {0};
static uintptr_t backend_dev_handle;
@@ -113,13 +54,6 @@ static int fip_dev_init(io_dev_info_t *dev_info, const uintptr_t init_params);
static int fip_dev_close(io_dev_info_t *dev_info);
-static inline int copy_uuid(uuid_t *dst, const uuid_t *src)
-{
- memcpy(dst, src, sizeof(uuid_t));
- return 0;
-}
-
-
/* Return 0 for equal uuids. */
static inline int compare_uuids(const uuid_t *uuid1, const uuid_t *uuid2)
{
@@ -138,22 +72,6 @@ static inline int is_valid_header(fip_toc_header_t *header)
}
-static int file_to_uuid(const char *filename, uuid_t *uuid)
-{
- int i;
- int status = -EINVAL;
-
- for (i = 0; i < (sizeof(name_uuid) / sizeof(name_uuid[0])); i++) {
- if (strcmp(filename, name_uuid[i].name) == 0) {
- copy_uuid(uuid, &name_uuid[i].uuid);
- status = 0;
- break;
- }
- }
- return status;
-}
-
-
/* Identify the device type as a virtual driver */
io_type_t device_type_fip(void)
{
@@ -187,50 +105,50 @@ static const io_dev_info_t fip_dev_info = {
/* Open a connection to the FIP device */
-static int fip_dev_open(const uintptr_t dev_spec __attribute__((unused)),
+static int fip_dev_open(const uintptr_t dev_spec __unused,
io_dev_info_t **dev_info)
{
assert(dev_info != NULL);
*dev_info = (io_dev_info_t *)&fip_dev_info; /* cast away const */
- return IO_SUCCESS;
+ return 0;
}
/* Do some basic package checks. */
static int fip_dev_init(io_dev_info_t *dev_info, const uintptr_t init_params)
{
- int result = IO_FAIL;
- char *image_name = (char *)init_params;
+ int result;
+ unsigned int image_id = (unsigned int)init_params;
uintptr_t backend_handle;
fip_toc_header_t header;
size_t bytes_read;
/* Obtain a reference to the image by querying the platform layer */
- result = plat_get_image_source(image_name, &backend_dev_handle,
+ result = plat_get_image_source(image_id, &backend_dev_handle,
&backend_image_spec);
- if (result != IO_SUCCESS) {
- WARN("Failed to obtain reference to image '%s' (%i)\n",
- image_name, result);
- result = IO_FAIL;
+ if (result != 0) {
+ WARN("Failed to obtain reference to image id=%u (%i)\n",
+ image_id, result);
+ result = -ENOENT;
goto fip_dev_init_exit;
}
/* Attempt to access the FIP image */
result = io_open(backend_dev_handle, backend_image_spec,
&backend_handle);
- if (result != IO_SUCCESS) {
- WARN("Failed to access image '%s' (%i)\n", image_name, result);
- result = IO_FAIL;
+ if (result != 0) {
+ WARN("Failed to access image id=%u (%i)\n", image_id, result);
+ result = -ENOENT;
goto fip_dev_init_exit;
}
result = io_read(backend_handle, (uintptr_t)&header, sizeof(header),
&bytes_read);
- if (result == IO_SUCCESS) {
+ if (result == 0) {
if (!is_valid_header(&header)) {
WARN("Firmware Image Package header check failed.\n");
- result = IO_FAIL;
+ result = -ENOENT;
} else {
VERBOSE("FIP header looks OK.\n");
}
@@ -251,7 +169,7 @@ static int fip_dev_close(io_dev_info_t *dev_info)
backend_dev_handle = (uintptr_t)NULL;
backend_image_spec = (uintptr_t)NULL;
- return IO_SUCCESS;
+ return 0;
}
@@ -259,14 +177,13 @@ static int fip_dev_close(io_dev_info_t *dev_info)
static int fip_file_open(io_dev_info_t *dev_info, const uintptr_t spec,
io_entity_t *entity)
{
- int result = IO_FAIL;
+ int result;
uintptr_t backend_handle;
- uuid_t file_uuid;
- const io_file_spec_t *file_spec = (io_file_spec_t *)spec;
+ const io_uuid_spec_t *uuid_spec = (io_uuid_spec_t *)spec;
size_t bytes_read;
int found_file = 0;
- assert(file_spec != NULL);
+ assert(uuid_spec != NULL);
assert(entity != NULL);
/* Can only have one file open at a time for the moment. We need to
@@ -277,37 +194,35 @@ static int fip_file_open(io_dev_info_t *dev_info, const uintptr_t spec,
*/
if (current_file.entry.offset_address != 0) {
WARN("fip_file_open : Only one open file at a time.\n");
- return IO_RESOURCES_EXHAUSTED;
+ return -ENOMEM;
}
/* Attempt to access the FIP image */
result = io_open(backend_dev_handle, backend_image_spec,
&backend_handle);
- if (result != IO_SUCCESS) {
+ if (result != 0) {
WARN("Failed to open Firmware Image Package (%i)\n", result);
- result = IO_FAIL;
+ result = -ENOENT;
goto fip_file_open_exit;
}
/* Seek past the FIP header into the Table of Contents */
result = io_seek(backend_handle, IO_SEEK_SET, sizeof(fip_toc_header_t));
- if (result != IO_SUCCESS) {
+ if (result != 0) {
WARN("fip_file_open: failed to seek\n");
- result = IO_FAIL;
+ result = -ENOENT;
goto fip_file_open_close;
}
- file_to_uuid(file_spec->path, &file_uuid);
-
found_file = 0;
do {
result = io_read(backend_handle,
(uintptr_t)&current_file.entry,
sizeof(current_file.entry),
&bytes_read);
- if (result == IO_SUCCESS) {
+ if (result == 0) {
if (compare_uuids(&current_file.entry.uuid,
- &file_uuid) == 0) {
+ &uuid_spec->uuid) == 0) {
found_file = 1;
break;
}
@@ -327,7 +242,7 @@ static int fip_file_open(io_dev_info_t *dev_info, const uintptr_t spec,
} else {
/* Did not find the file in the FIP. */
current_file.entry.offset_address = 0;
- result = IO_FAIL;
+ result = -ENOENT;
}
fip_file_open_close:
@@ -346,7 +261,7 @@ static int fip_file_len(io_entity_t *entity, size_t *length)
*length = ((file_state_t *)entity->info)->entry.size;
- return IO_SUCCESS;
+ return 0;
}
@@ -354,7 +269,7 @@ static int fip_file_len(io_entity_t *entity, size_t *length)
static int fip_file_read(io_entity_t *entity, uintptr_t buffer, size_t length,
size_t *length_read)
{
- int result = IO_FAIL;
+ int result;
file_state_t *fp;
size_t file_offset;
size_t bytes_read;
@@ -368,9 +283,9 @@ static int fip_file_read(io_entity_t *entity, uintptr_t buffer, size_t length,
/* Open the backend, attempt to access the blob image */
result = io_open(backend_dev_handle, backend_image_spec,
&backend_handle);
- if (result != IO_SUCCESS) {
+ if (result != 0) {
WARN("Failed to open FIP (%i)\n", result);
- result = IO_FAIL;
+ result = -ENOENT;
goto fip_file_read_exit;
}
@@ -379,17 +294,17 @@ static int fip_file_read(io_entity_t *entity, uintptr_t buffer, size_t length,
/* Seek to the position in the FIP where the payload lives */
file_offset = fp->entry.offset_address + fp->file_pos;
result = io_seek(backend_handle, IO_SEEK_SET, file_offset);
- if (result != IO_SUCCESS) {
+ if (result != 0) {
WARN("fip_file_read: failed to seek\n");
- result = IO_FAIL;
+ result = -ENOENT;
goto fip_file_read_close;
}
result = io_read(backend_handle, buffer, length, &bytes_read);
- if (result != IO_SUCCESS) {
+ if (result != 0) {
/* We cannot read our data. Fail. */
WARN("Failed to read payload (%i)\n", result);
- result = IO_FAIL;
+ result = -ENOENT;
goto fip_file_read_close;
} else {
/* Set caller length and new file position. */
@@ -413,13 +328,13 @@ static int fip_file_close(io_entity_t *entity)
* If we had malloc() we would free() here.
*/
if (current_file.entry.offset_address != 0) {
- memset(&current_file, 0, sizeof(current_file));
+ zeromem(&current_file, sizeof(current_file));
}
/* Clear the Entity info. */
entity->info = 0;
- return IO_SUCCESS;
+ return 0;
}
/* Exported functions */
@@ -427,11 +342,11 @@ static int fip_file_close(io_entity_t *entity)
/* Register the Firmware Image Package driver with the IO abstraction */
int register_io_dev_fip(const io_dev_connector_t **dev_con)
{
- int result = IO_FAIL;
+ int result;
assert(dev_con != NULL);
result = io_register_device(&fip_dev_info);
- if (result == IO_SUCCESS)
+ if (result == 0)
*dev_con = &fip_dev_connector;
return result;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-09 09:00:11 +0000