From 3aa067f595115a62afdfc9acc33f08e9c96da850 Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Mon, 2 Apr 2012 13:24:04 -0700 Subject: Add support to run SMM handler in TSEG instead of ASEG Traditionally coreboot's SMM handler runs in ASEG (0xa0000), "behind" the graphics memory. This approach has two issues: - It limits the possible size of the SMM handler (and the number of CPUs supported in a system) - It's not considered a supported path anymore in newer CPUs. Change-Id: I9f2877e46873ab2ea8f1157ead4bc644a50be19e Signed-off-by: Duncan Laurie Acked-by: Stefan Reinauer Reviewed-on: http://review.coreboot.org/842 Reviewed-by: Peter Stuge Tested-by: build bot (Jenkins) --- Makefile.inc | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'Makefile.inc') diff --git a/Makefile.inc b/Makefile.inc index 81d40df..9b67496 100644 --- a/Makefile.inc +++ b/Makefile.inc @@ -62,6 +62,11 @@ endif smm-c-ccopts:=-D__SMM__ smm-S-ccopts:=-D__SMM__ +# SMM TSEG base is dynamic +ifeq ($(CONFIG_SMM_TSEG),y) +smm-c-ccopts += -fpic +endif + ramstage-c-deps:=$$(OPTION_TABLE_H) romstage-c-deps:=$$(OPTION_TABLE_H) -- cgit v1.1