Added arch_lmb_reserve to allow arch specific memory regions protection
Each architecture has different ways of determine what regions of memory
might not be valid to get overwritten when we boot. This provides a
hook to allow them to reserve any regions they care about. Currently
only ppc, m68k and sparc need/use this.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/lib_sparc/bootm.c b/lib_sparc/bootm.c
index 2baafcc..565b41c 100644
--- a/lib_sparc/bootm.c
+++ b/lib_sparc/bootm.c
@@ -81,6 +81,15 @@
/* temporary initrd image holder */
image_header_t ihdr;
+void arch_lmb_reserve(struct lmb *lmb)
+{
+ /* Reserve the space used by PROM and stack. This is done
+ * to avoid that the RAM image is copied over stack or
+ * PROM.
+ */
+ lmb_reserve(lmb, CONFIG_SYS_RELOC_MONITOR_BASE, CONFIG_SYS_RAM_END);
+}
+
/* boot the linux kernel */
int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t * images)
{
@@ -124,13 +133,6 @@
rd_len = images->rd_end - images->rd_start;
if (rd_len) {
-
- /* Reserve the space used by PROM and stack. This is done
- * to avoid that the RAM image is copied over stack or
- * PROM.
- */
- lmb_reserve(lmb, CONFIG_SYS_RELOC_MONITOR_BASE, CONFIG_SYS_RAM_END);
-
ret = boot_ramdisk_high(lmb, images->rd_start, rd_len,
&initrd_start, &initrd_end);
if (ret) {