diff options
| author | Sughosh Ganu <sughosh.ganu@linaro.org> | 2024-10-21 22:54:33 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2024-10-29 12:09:55 -0600 |
| commit | 827dee587b75f5dfe109672f2de91bc7ac8bdc0d (patch) | |
| tree | 010a3cd9b1e6e824285c24662fe8afd9cf51ef3c | |
| parent | c3cf0dc64f1c39bc10530ef649fd7bf147e70720 (diff) | |
fdt: lmb: add reserved regions as no-overwrite
The boot_fdt_add_mem_rsv_regions() function reserves the memreserve and
reserved-memory regions. These regions are being set with the LMB_NONE
flag which allows overwriting and re-using the regions. This was fine
earlier when the LMB memory map was local and not enforced
globally. But that is no longer the case. Mark these regions as
LMB_NOOVERWRITE so that they cannot be used.
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reported-by: Vaishnav Achath <vaishnav.a@ti.com>
| -rw-r--r-- | boot/image-fdt.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/boot/image-fdt.c b/boot/image-fdt.c index 8eda521693d..9a1fa8840d7 100644 --- a/boot/image-fdt.c +++ b/boot/image-fdt.c @@ -110,7 +110,7 @@ void boot_fdt_add_mem_rsv_regions(void *fdt_blob) for (i = 0; i < total; i++) { if (fdt_get_mem_rsv(fdt_blob, i, &addr, &size) != 0) continue; - boot_fdt_reserve_region(addr, size, LMB_NONE); + boot_fdt_reserve_region(addr, size, LMB_NOOVERWRITE); } /* process reserved-memory */ @@ -122,7 +122,7 @@ void boot_fdt_add_mem_rsv_regions(void *fdt_blob) ret = fdt_get_resource(fdt_blob, subnode, "reg", 0, &res); if (!ret && fdtdec_get_is_enabled(fdt_blob, subnode)) { - flags = LMB_NONE; + flags = LMB_NOOVERWRITE; if (fdtdec_get_bool(fdt_blob, subnode, "no-map")) flags = LMB_NOMAP; |