From aa3b5e29f2a6f15034f4a195c5871b4189350ddc Mon Sep 17 00:00:00 2001 From: Matt DeVillier Date: Tue, 25 Dec 2018 22:10:48 -0600 Subject: soc/braswell: hook up smmstore Adapted from implementation in sb/intel/common. Test: build/boot variants of google/cyan with Tianocore and SMMSTORE enabled Change-Id: Ife4681983d0eecbc01c539b477664f3dd8bb9368 Signed-off-by: Matt DeVillier Reviewed-on: https://review.coreboot.org/c/coreboot/+/39191 Tested-by: build bot (Jenkins) Reviewed-by: Angel Pons --- src/soc/intel/braswell/smihandler.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/src/soc/intel/braswell/smihandler.c b/src/soc/intel/braswell/smihandler.c index 80b142aad8..31b059c545 100644 --- a/src/soc/intel/braswell/smihandler.c +++ b/src/soc/intel/braswell/smihandler.c @@ -30,6 +30,7 @@ #include #include #include +#include /* GNVS needs to be set by coreboot initiating a software SMI. */ static global_nvs_t *gnvs; @@ -279,6 +280,26 @@ static void southbridge_smi_gsmi(void) *ret = gsmi_exec(sub_command, param); } +static void southbridge_smi_store(void) +{ + u8 sub_command, ret; + em64t100_smm_state_save_area_t *io_smi = + smi_apmc_find_state_save(APM_CNT_SMMSTORE); + uint32_t reg_ebx; + + if (!io_smi) + return; + /* Command and return value in EAX */ + sub_command = (io_smi->rax >> 8) & 0xff; + + /* Parameter buffer in EBX */ + reg_ebx = io_smi->rbx; + + /* drivers/smmstore/smi.c */ + ret = smmstore_exec(sub_command, (void *)reg_ebx); + io_smi->rax = ret; +} + static void southbridge_smi_apmc(void) { uint8_t reg8; @@ -330,6 +351,10 @@ static void southbridge_smi_apmc(void) if (CONFIG(ELOG_GSMI)) southbridge_smi_gsmi(); break; + case APM_CNT_SMMSTORE: + if (CONFIG(SMMSTORE)) + southbridge_smi_store(); + break; } mainboard_smi_apmc(reg8); -- cgit v1.2.3