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selfload: check target memory type in selfload_check

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Currently, selflock_check() verifies that the binary is loaded in an
usable RAM area.

Extend its functionality so we can also check that BL31 is loaded in
a manually reserved area, and fail early if the range is not protected.

Change-Id: Iecdeedd9e8da67f73ac47d2a82e85b306469a626
Signed-off-by: Ting Shen <phoenixshen@google.com>
Reviewed-on: https://review.coreboot.org/c/31122
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
Ting Shen
2019-01-28 17:22:22 +08:00
committed by Patrick Georgi
parent ab92f26a13
commit 05532260ae
6 changed files with 27 additions and 27 deletions
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7
src/include/bootmem.h
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@@ -94,8 +94,11 @@ bool bootmem_walk_os_mem(range_action_t action, void *arg);
*/
bool bootmem_walk(range_action_t action, void *arg);
/* Return 1 if region targets usable RAM, 0 otherwise. */
int bootmem_region_targets_usable_ram(uint64_t start, uint64_t size);
/* Returns 1 if the requested memory range is all tagged as type dest_type.
* Otherwise returns 0.
*/
int bootmem_region_targets_type(uint64_t start, uint64_t size,
enum bootmem_type dest_type);
/* Allocate a temporary buffer from the unused RAM areas. */
void *bootmem_allocate_buffer(size_t size);