From 4c80425f3037d43cc45d56801e0717471cea0489 Mon Sep 17 00:00:00 2001 From: Arthur Heymans Date: Mon, 3 Dec 2018 01:28:18 +0100 Subject: sb/intel/common/smihandler: Hook up smmstore TESTED on Asus P5QC. Change-Id: I20b87f3dcb898656ad31478820dd5153e4053cb2 Signed-off-by: Arthur Heymans Reviewed-on: https://review.coreboot.org/c/coreboot/+/30012 Reviewed-by: Patrick Georgi Tested-by: build bot (Jenkins) --- src/southbridge/intel/common/Kconfig | 1 + src/southbridge/intel/common/smihandler.c | 25 +++++++++++++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/src/southbridge/intel/common/Kconfig b/src/southbridge/intel/common/Kconfig index c3bd90dca8..dfd89755ec 100644 --- a/src/southbridge/intel/common/Kconfig +++ b/src/southbridge/intel/common/Kconfig @@ -20,6 +20,7 @@ config SOUTHBRIDGE_INTEL_COMMON_SMBUS config SOUTHBRIDGE_INTEL_COMMON_SPI def_bool n select SPI_FLASH + select BOOT_DEVICE_SUPPORTS_WRITES config SOUTHBRIDGE_INTEL_COMMON_PIRQ_ACPI_GEN def_bool n diff --git a/src/southbridge/intel/common/smihandler.c b/src/southbridge/intel/common/smihandler.c index daa0959e3b..d61238c865 100644 --- a/src/southbridge/intel/common/smihandler.c +++ b/src/southbridge/intel/common/smihandler.c @@ -27,6 +27,7 @@ #include #include #include +#include #include "pmutil.h" @@ -268,6 +269,26 @@ static void southbridge_smi_gsmi(void) } #endif +static void southbridge_smi_store(void) +{ + u8 sub_command, ret; + em64t101_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, (uintptr_t *)reg_ebx); + io_smi->rax = ret; +} + static int mainboard_finalized = 0; static void southbridge_smi_apmc(void) @@ -322,6 +343,10 @@ static void southbridge_smi_apmc(void) southbridge_smi_gsmi(); break; #endif + case APM_CNT_SMMSTORE: + if (CONFIG(SMMSTORE)) + southbridge_smi_store(); + break; } mainboard_smi_apmc(reg8); -- cgit v1.2.3