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Unify cache flush code path after image load

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Previously the cache flush happened in 2 different places in code
depending on whether TRUSTED_BOARD_BOOT is enabled or not. This
patch unifies this code path for both the cases. The `load_image()`
function is now made an internal static function.

Change-Id: I96a1da29d29236bbc34b1c95053e6a9a7fc98a54
Signed-off-by: Soby Mathew <soby.mathew@arm.com>
This commit is contained in:
Soby Mathew 2017-11-10 13:14:40 +00:00
parent 5627c1ed9e
commit 76163b3a7a
2 changed files with 7 additions and 18 deletions
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24
common/bl_common.c
View File

@ -200,14 +200,14 @@ size_t image_size(unsigned int image_id)
#if LOAD_IMAGE_V2
/*******************************************************************************
* Generic function to load an image at a specific address given
* Internal function to load an image at a specific address given
* an image ID and extents of free memory.
*
* If the load is successful then the image information is updated.
*
* Returns 0 on success, a negative error code otherwise.
******************************************************************************/
int load_image(unsigned int image_id, image_info_t *image_data)
static int load_image(unsigned int image_id, image_info_t *image_data)
{
uintptr_t dev_handle;
uintptr_t image_handle;
@ -266,17 +266,6 @@ int load_image(unsigned int image_id, image_info_t *image_data)
goto exit;
}
#if !TRUSTED_BOARD_BOOT
/*
* File has been successfully loaded.
* Flush the image to main memory so that it can be executed later by
* any CPU, regardless of cache and MMU state.
* When TBB is enabled the image is flushed later, after image
* authentication.
*/
flush_dcache_range(image_base, image_size);
#endif /* TRUSTED_BOARD_BOOT */
INFO("Image id=%u loaded: %p - %p\n", image_id, (void *) image_base,
(void *) (image_base + image_size));
@ -329,18 +318,19 @@ static int load_auth_image_internal(unsigned int image_id,
image_data->image_size);
return -EAUTH;
}
#endif /* TRUSTED_BOARD_BOOT */
/*
* File has been successfully loaded and authenticated.
* Flush the image to main memory so that it can be executed later by
* any CPU, regardless of cache and MMU state.
* Do it only for child images, not for the parents (certificates).
* any CPU, regardless of cache and MMU state. If TBB is enabled, then
* the file has been successfully loaded and authenticated and flush
* only for child images, not for the parents (certificates).
*/
if (!is_parent_image) {
flush_dcache_range(image_data->image_base,
image_data->image_size);
}
#endif /* TRUSTED_BOARD_BOOT */
return 0;
}

1
include/common/bl_common.h
View File

@ -205,7 +205,6 @@ int is_mem_free(uintptr_t free_base, size_t free_size,
#if LOAD_IMAGE_V2
int load_image(unsigned int image_id, image_info_t *image_data);
int load_auth_image(unsigned int image_id, image_info_t *image_data);
#else