diff options
| author | Prasad Kummari <[email protected]> | 2024-09-13 13:02:52 +0530 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2024-09-20 17:38:16 -0600 |
| commit | 33a4dfc703b43f0e8d4da76411ee3f5aee0c8033 (patch) | |
| tree | 32e79968e175f9b967e8c5d926aea196d861ce58 /include | |
| parent | 948616894c6d3316a5ac8f2a891783e3e7ff3516 (diff) | |
cmd: sf: prevent overwriting the reserved memory
Added LMB API to prevent SF command from overwriting reserved
memory areas. The current SPI code does not use LMB APIs for
loading data into memory addresses. To resolve this, LMB APIs
were added to check the load address of an SF command and ensure it
does not overwrite reserved memory addresses. Similar checks are
used in TFTP, serial load, and boot code to prevent overwriting
reserved memory.
Signed-off-by: Prasad Kummari <[email protected]>
Suggested-by: Sughosh Ganu <[email protected]>
Diffstat (limited to 'include')
| -rw-r--r-- | include/lmb.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/lmb.h b/include/lmb.h index fc2daaa7bfc..aee2f9fcdaa 100644 --- a/include/lmb.h +++ b/include/lmb.h @@ -111,6 +111,11 @@ struct lmb *lmb_get(void); int lmb_push(struct lmb *store); void lmb_pop(struct lmb *store); +static inline int lmb_read_check(phys_addr_t addr, phys_size_t len) +{ + return lmb_alloc_addr(addr, len) == addr ? 0 : -1; +} + #endif /* __KERNEL__ */ #endif /* _LINUX_LMB_H */ |