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libpayload/libcbfs: Add unverified_area APIs

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This patch introduces equivalents of unverified_area CBFS access
functions added to the main coreboot tree in CB:59678

Change-Id: Ibadfd2a5cb6ad037ef1222b0a4301f90a79a127b
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60714
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
Jakub Czapiga
2022-01-03 15:06:21 +00:00
committed by Felix Held
parent b3398ba562
commit ad45f681aa
3 changed files with 158 additions and 22 deletions
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22
payloads/libpayload/include/cbfs.h
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@@ -17,9 +17,13 @@
static inline size_t cbfs_load(const char *name, void *buf, size_t size);
static inline size_t cbfs_ro_load(const char *name, void *buf, size_t size);
static inline size_t cbfs_unverified_area_load(const char *area, const char *name, void *buf,
size_t size);
static inline void *cbfs_map(const char *name, size_t *size_out);
static inline void *cbfs_ro_map(const char *name, size_t *size_out);
static inline void *cbfs_unverified_area_map(const char *area, const char *name,
size_t *size_out);
void cbfs_unmap(void *mapping);
@@ -39,6 +43,9 @@ ssize_t _cbfs_boot_lookup(const char *name, bool force_ro, union cbfs_mdata *mda
void *_cbfs_load(const char *name, void *buf, size_t *size_inout, bool force_ro);
void *_cbfs_unverified_area_load(const char *area, const char *name, void *buf,
size_t *size_inout);
/**********************************************************************************************
* INLINE IMPLEMENTATIONS *
**********************************************************************************************/
@@ -53,6 +60,12 @@ static inline void *cbfs_ro_map(const char *name, size_t *size_out)
return _cbfs_load(name, NULL, size_out, true);
}
static inline void *cbfs_unverified_area_map(const char *area, const char *name,
size_t *size_out)
{
return _cbfs_unverified_area_load(area, name, NULL, size_out);
}
static inline size_t cbfs_load(const char *name, void *buf, size_t size)
{
if (_cbfs_load(name, buf, &size, false))
@@ -69,6 +82,15 @@ static inline size_t cbfs_ro_load(const char *name, void *buf, size_t size)
return 0;
}
static inline size_t cbfs_unverified_area_load(const char *area, const char *name, void *buf,
size_t size)
{
if (_cbfs_unverified_area_load(area, name, buf, &size))
return size;
else
return 0;
}
static inline size_t cbfs_get_size(const char *name)
{
union cbfs_mdata mdata;