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-rw-r--r--src/arch/x86/boot/acpi.c25
-rw-r--r--src/arch/x86/include/arch/acpi.h2
-rw-r--r--src/include/cbmem.h1
-rw-r--r--src/southbridge/via/vt8237r/Makefile.inc1
-rw-r--r--src/southbridge/via/vt8237r/smi.c33
5 files changed, 59 insertions, 3 deletions
diff --git a/src/arch/x86/boot/acpi.c b/src/arch/x86/boot/acpi.c
index ca2f1d4562..4d405d9fe0 100644
--- a/src/arch/x86/boot/acpi.c
+++ b/src/arch/x86/boot/acpi.c
@@ -32,6 +32,7 @@
#include <device/pci.h>
#include <cbmem.h>
#include <cpu/x86/lapic_def.h>
+#include <cpu/cpu.h>
#if CONFIG_COLLECT_TIMESTAMPS
#include <timestamp.h>
#endif
@@ -140,7 +141,7 @@ int acpi_create_madt_lapic(acpi_madt_lapic_t *lapic, u8 cpu, u8 apic)
unsigned long acpi_create_madt_lapics(unsigned long current)
{
device_t cpu;
- int cpu_index = 0;
+ int index = 0;
for (cpu = all_devices; cpu; cpu = cpu->next) {
if ((cpu->path.type != DEVICE_PATH_APIC) ||
@@ -150,8 +151,8 @@ unsigned long acpi_create_madt_lapics(unsigned long current)
if (!cpu->enabled)
continue;
current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current,
- cpu_index, cpu->path.apic.apic_id);
- cpu_index++;
+ index, cpu->path.apic.apic_id);
+ index++;
}
return current;
@@ -627,6 +628,17 @@ void suspend_resume(void)
/* If we happen to be resuming find wakeup vector and jump to OS. */
wake_vec = acpi_find_wakeup_vector();
if (wake_vec) {
+#if CONFIG_HAVE_SMI_HANDLER
+ u32 *gnvs_address = cbmem_find(CBMEM_ID_ACPI_GNVS);
+
+ /* Restore GNVS pointer in SMM if found */
+ if (gnvs_address && *gnvs_address) {
+ printk(BIOS_DEBUG, "Restore GNVS pointer to 0x%08x\n",
+ *gnvs_address);
+ smm_setup_structures((void *)*gnvs_address, NULL, NULL);
+ }
+#endif
+
/* Call mainboard resume handler first, if defined. */
if (mainboard_suspend_resume)
mainboard_suspend_resume();
@@ -770,3 +782,10 @@ void acpi_jump_to_wakeup(void *vector)
HIGH_MEMORY_SAVE);
}
#endif
+
+void acpi_save_gnvs(u32 gnvs_address)
+{
+ u32 *gnvs = cbmem_add(CBMEM_ID_ACPI_GNVS, sizeof(*gnvs));
+ if (gnvs)
+ *gnvs = gnvs_address;
+}
diff --git a/src/arch/x86/include/arch/acpi.h b/src/arch/x86/include/arch/acpi.h
index b39e8c074c..022a45fd52 100644
--- a/src/arch/x86/include/arch/acpi.h
+++ b/src/arch/x86/include/arch/acpi.h
@@ -552,6 +552,8 @@ void acpi_write_hest(acpi_hest_t *hest);
unsigned long acpi_create_hest_error_source(acpi_hest_t *hest, acpi_hest_esd_t *esd, u16 type, void *data, u16 len);
unsigned long acpi_fill_hest(acpi_hest_t *hest);
+void acpi_save_gnvs(u32 gnvs_address);
+
#if CONFIG_HAVE_ACPI_RESUME
/* 0 = S0, 1 = S1 ...*/
extern u8 acpi_slp_type;
diff --git a/src/include/cbmem.h b/src/include/cbmem.h
index b43c97233d..21efe77b0a 100644
--- a/src/include/cbmem.h
+++ b/src/include/cbmem.h
@@ -44,6 +44,7 @@
#define CBMEM_ID_FREESPACE 0x46524545
#define CBMEM_ID_GDT 0x4c474454
#define CBMEM_ID_ACPI 0x41435049
+#define CBMEM_ID_ACPI_GNVS 0x474e5653
#define CBMEM_ID_CBTABLE 0x43425442
#define CBMEM_ID_PIRQ 0x49525154
#define CBMEM_ID_MPTABLE 0x534d5054
diff --git a/src/southbridge/via/vt8237r/Makefile.inc b/src/southbridge/via/vt8237r/Makefile.inc
index 08545feca2..6474e585e7 100644
--- a/src/southbridge/via/vt8237r/Makefile.inc
+++ b/src/southbridge/via/vt8237r/Makefile.inc
@@ -25,4 +25,5 @@ driver-y += sata.c
driver-y += usb.c
driver-$(CONFIG_PIRQ_ROUTE) += pirq.c
ramstage-$(CONFIG_GENERATE_ACPI_TABLES) += fadt.c
+ramstage-$(CONFIG_HAVE_SMI_HANDLER) += smi.c
smm-$(CONFIG_HAVE_SMI_HANDLER) += smihandler.c
diff --git a/src/southbridge/via/vt8237r/smi.c b/src/southbridge/via/vt8237r/smi.c
new file mode 100644
index 0000000000..b865a5b0b0
--- /dev/null
+++ b/src/southbridge/via/vt8237r/smi.c
@@ -0,0 +1,33 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008-2009 coresystems GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+#include <arch/io.h>
+#include <cpu/cpu.h>
+
+void smm_setup_structures(void *gnvs, void *tcg, void *smi1)
+{
+ /* The GDT or coreboot table is going to live here. But a long time
+ * after we relocated the GNVS, so this is not troublesome.
+ */
+ *(u32 *)0x500 = (u32)gnvs;
+ *(u32 *)0x504 = (u32)tcg;
+ *(u32 *)0x508 = (u32)smi1;
+ outb(0xea, 0xb2);
+}