x86 romstage: Move stack just below RAMTOP
Placement of romstage stack in RAM was vulnerable for getting corrupted
by decompressed ramstage.
Change-Id: Ic032bd3e69f4ab8dab8e5932df39fab70aa3e769
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7096
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
diff --git a/src/cpu/intel/haswell/romstage.c b/src/cpu/intel/haswell/romstage.c
index 9e27668..65ee3b4 100644
--- a/src/cpu/intel/haswell/romstage.c
+++ b/src/cpu/intel/haswell/romstage.c
@@ -25,7 +25,6 @@
#include <cpu/x86/bist.h>
#include <cpu/x86/msr.h>
#include <cpu/x86/mtrr.h>
-#include <cpu/x86/stack.h>
#include <lib.h>
#include <timestamp.h>
#include <arch/io.h>
@@ -85,7 +84,7 @@
ROMSTAGE_RAM_STACK_SIZE);
stack_top += ROMSTAGE_RAM_STACK_SIZE;
#else
- stack_top = ROMSTAGE_STACK;
+ stack_top = CONFIG_RAMTOP;
#endif
return stack_top;
}