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authorArthur Heymans <arthur@aheymans.xyz>2018-12-03 01:28:18 +0100
committerPatrick Georgi <pgeorgi@google.com>2019-10-02 11:15:30 +0000
commit4c80425f3037d43cc45d56801e0717471cea0489 (patch)
tree83563808731968b9f18ea3f507a0d1b93fddd2c5 /src/southbridge
parent6238563b2b65edac8e6dba4f8f20eb020c172317 (diff)
downloadcoreboot-4c80425f3037d43cc45d56801e0717471cea0489.tar.xz
sb/intel/common/smihandler: Hook up smmstore
TESTED on Asus P5QC. Change-Id: I20b87f3dcb898656ad31478820dd5153e4053cb2 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/30012 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/southbridge')
-rw-r--r--src/southbridge/intel/common/Kconfig1
-rw-r--r--src/southbridge/intel/common/smihandler.c25
2 files changed, 26 insertions, 0 deletions
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 <halt.h>
#include <pc80/mc146818rtc.h>
#include <southbridge/intel/common/pmbase.h>
+#include <smmstore.h>
#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);