From 9d8adc0e3a923e1d201d50344f94a9176e5ec939 Mon Sep 17 00:00:00 2001 From: Kyösti Mälkki Date: Sun, 4 Dec 2016 22:17:37 +0200 Subject: x86 SMM: Fix use with RELOCATABLE_RAMSTAGE MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The value for _size was not evaluated correctly if ramstage is relocated, make the calculation runtime. While touching it, move symbol declarations to header file. Change-Id: I4402315945771acf1c86a81cac6d43f1fe99a2a2 Signed-off-by: Kyösti Mälkki Reviewed-on: https://review.coreboot.org/17784 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin --- src/soc/intel/sch/smi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'src/soc/intel/sch') diff --git a/src/soc/intel/sch/smi.c b/src/soc/intel/sch/smi.c index 24628e52e6..f79e963ba1 100644 --- a/src/soc/intel/sch/smi.c +++ b/src/soc/intel/sch/smi.c @@ -24,9 +24,6 @@ #include "chip.h" #include "sch.h" -extern unsigned char _binary_smm_start; -extern unsigned char _binary_smm_size; - /* I945 */ #define SMRAM 0x9d #define D_OPEN (1 << 6) @@ -299,7 +296,8 @@ static void smm_install(void) D_OPEN | G_SMRAME | C_BASE_SEG); /* copy the real SMM handler */ - memcpy((void *)0xa0000, &_binary_smm_start, (size_t)&_binary_smm_size); + memcpy((void *)0xa0000, _binary_smm_start, + _binary_smm_end - _binary_smm_start); wbinvd(); /* close the SMM memory window and enable normal SMM */ -- cgit v1.2.3