xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

of: Add memory limiting function for flattened devicetrees

Browse Source 
Buggy bootloaders may pass bogus memory entries in the devicetree.
Add of_fdt_limit_memory to add an upper bound on the number of
entries that can be present in the devicetree.

Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Tested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
This commit is contained in:
Laura Abbott
2014-07-15 10:03:35 -07:00
committed by Grant Likely
parent 4972a74b88
commit 704033cee2
2 changed files with 49 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/linux/of_fdt.h
View File

@@ -86,6 +86,7 @@ extern void unflatten_and_copy_device_tree(void);
extern void early_init_devtree(void *);
extern void early_get_first_memblock_info(void *, phys_addr_t *);
extern u64 fdt_translate_address(const void *blob, int node_offset);
extern void of_fdt_limit_memory(int limit);
#else /* CONFIG_OF_FLATTREE */
static inline void early_init_fdt_scan_reserved_mem(void) {}
static inline const char *of_flat_dt_get_machine_name(void) { return NULL; }