Change in ...coreboot[master]: [WIP]sb/intel/common/smihandler: Hook up smmstore

[Arthur Heymans (Code Review)]

Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/30012

Change subject: [WIP]sb/intel/common/smihandler: Hook up smmstore
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[WIP]sb/intel/common/smihandler: Hook up smmstore

TESTED on Asus P5QC

Change-Id: I20b87f3dcb898656ad31478820dd5153e4053cb2
Signed-off-by: Arthur Heymans 
---
M src/cpu/x86/lapic/Makefile.inc
M src/southbridge/intel/common/smihandler.c
2 files changed, 26 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/12/30012/1

diff --git a/src/cpu/x86/lapic/Makefile.inc b/src/cpu/x86/lapic/Makefile.inc
index 9454f8f..7637250 100644
--- a/src/cpu/x86/lapic/Makefile.inc
+++ b/src/cpu/x86/lapic/Makefile.inc
@@ -4,6 +4,7 @@
 romstage-$(CONFIG_UDELAY_LAPIC) += apic_timer.c
 ramstage-$(CONFIG_UDELAY_LAPIC) += apic_timer.c
 postcar-$(CONFIG_UDELAY_LAPIC) += apic_timer.c
+smm-$(CONFIG_UDELAY_LAPIC) += apic_timer.c
 bootblock-y += boot_cpu.c
 verstage-y += boot_cpu.c
 romstage-y += boot_cpu.c
diff --git a/src/southbridge/intel/common/smihandler.c b/src/southbridge/intel/common/smihandler.c
index 0ad400c..bd3af3a 100644
--- a/src/southbridge/intel/common/smihandler.c
+++ b/src/southbridge/intel/common/smihandler.c
@@ -25,6 +25,7 @@
 #include <halt.h>
 #include <pc80/mc146818rtc.h>
 #include <southbridge/intel/common/pmbase.h>
+#include <smmstore.h>

#include "pmutil.h"

@@ -266,6 +267,26 @@
 }
 #endif

+static void southbridge_smi_store(void)
+{
+	u8 sub_command, ret;
+	em64t101_smm_state_save_area_t *io_smi =
+		smi_apmc_find_state_save(SMMSTORE_APM_CNT);
+	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 int mainboard_finalized = 0;

static void southbridge_smi_apmc(void)
@@ -320,6 +341,10 @@
    	southbridge_smi_gsmi();
    	break;
 #endif
+	case SMMSTORE_APM_CNT:
+		if (IS_ENABLED(CONFIG_SMMSTORE))
+			southbridge_smi_store();
+		break;
    }

mainboard_smi_apmc(reg8);