ACPI HEST table.

HEST feature starts from ACPI 4.0.

HEST is one of four kinds of tables of ACPI Platform Error
Interfaces (APEI). In Windows world, APEI is called Windows Hardware
Error Architecture (WHEA).

APEI consists of four separate tables:
1. Error Record Serialization Table (ERST)
2. BOOT Error Record Table (BERT)
3. Hardware Error Source Table (HEST)
4. Error Injection Table (EINJ)
All these 4 tables have the same header as FADT, MADT, etc. They are
pointed by RSDP.

For the HEST, it contains the error source. The types of them are
defined as
type description
1. Machine Check Exception (MCE)
2. Corrected Machine Check (CMC)
3. NMI Error
6. PCI Express Root Port AER
7. PCI Express Device AER
8. PCI Express Bridge AER
9. Generic Hardware Error Source
Error source types 3, 4, and 5 are reserved for legacy reasons and
must not be used.

Currently AMD board only provide part of "Machine Check
Exception (MCE)" & Corrected Machine Check (CMC)". we need to provide
the header of each error source. Other types of Error Sources is in
TODO list.

Only persimmon is tested. Linux can add HEST feature. The dmesg says,

ACPI: HEST 0000000066fe5010 00198 (v03 CORE COREBOOT 00000000 CORE 00000000)
......
HEST: Table parsing has been initialized.

No more message is got.

Windows can boot with this patch. Havent found a way to test it.

Change-Id: I447e7f57b8e8f0433a145a43d0710910afabf00f
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: zbao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/888
Reviewed-by: Peter Stuge <peter@stuge.se>
Tested-by: build bot (Jenkins)

1 files changed, 39 insertions, 10 deletions

diff --git a/src/mainboard/amd/south_station/acpi_tables.c b/src/mainboard/amd/south_station/acpi_tables.c
index 2e6e50fd4f..8d32614651 100644
--- a/src/mainboard/amd/south_station/acpi_tables.c
+++ b/src/mainboard/amd/south_station/acpi_tables.c
@@ -104,6 +104,24 @@ unsigned long acpi_fill_madt(unsigned long current)
 	return current;
 }
 
+unsigned long acpi_fill_hest(acpi_hest_t *hest)
+{
+	void *addr, *current;
+
+	/* Skip the HEST header. */
+	current = (void *)(hest + 1);
+
+	addr = agesawrapper_getlateinitptr(PICK_WHEA_MCE);
+	if (addr != NULL)
+		current += acpi_create_hest_error_source(hest, current, 0, (void *)((u32)addr + 2), *(UINT16 *)addr - 2);
+
+	addr = agesawrapper_getlateinitptr(PICK_WHEA_CMC);
+	if (addr != NULL)
+		current += acpi_create_hest_error_source(hest, current, 1, (void *)((u32)addr + 2), *(UINT16 *)addr - 2);
+
+	return (unsigned long)current;
+}
+
 unsigned long acpi_fill_slit(unsigned long current)
 {
 	// Not implemented
@@ -131,6 +149,7 @@ unsigned long write_acpi_tables(unsigned long start)
 	acpi_header_t *ssdt;
 	acpi_header_t *ssdt2;
 	acpi_header_t *alib;
+	acpi_hest_t *hest;
 
 	get_bus_conf(); /* it will get sblk, pci1234, hcdn, and sbdn */
 
@@ -153,7 +172,7 @@ unsigned long write_acpi_tables(unsigned long start)
 	acpi_write_rsdt(rsdt);
 
 	/* DSDT */
-	current	 = ( current + 0x07) & -0x08;
+	current = (current + 0x07) & -0x08;
 	printk(BIOS_DEBUG, "ACPI:  * DSDT at %lx\n", current);
 	dsdt = (acpi_header_t *)current;
 	memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
@@ -162,14 +181,14 @@ unsigned long write_acpi_tables(unsigned long start)
 	printk(BIOS_DEBUG, "ACPI:  * DSDT @ %p Length %x\n",dsdt,dsdt->length);
 
 	/* FACS */ // it needs 64 bit alignment
-	current	 = ( current + 0x07) & -0x08;
+	current = (current + 0x07) & -0x08;
 	printk(BIOS_DEBUG, "ACPI:  * FACS at %lx\n", current);
 	facs = (acpi_facs_t *) current;
 	current += sizeof(acpi_facs_t);
 	acpi_create_facs(facs);
 
 	/* FADT */
-	current	 = ( current + 0x07) & -0x08;
+	current = (current + 0x07) & -0x08;
 	printk(BIOS_DEBUG, "ACPI:  * FADT at %lx\n", current);
 	fadt = (acpi_fadt_t *) current;
 	current += sizeof(acpi_fadt_t);
@@ -180,7 +199,7 @@ unsigned long write_acpi_tables(unsigned long start)
 	/*
 	 * We explicitly add these tables later on:
 	 */
-	current	 = ( current + 0x07) & -0x08;
+	current = (current + 0x07) & -0x08;
 	printk(BIOS_DEBUG, "ACPI:  * HPET at %lx\n", current);
 	hpet = (acpi_hpet_t *) current;
 	current += sizeof(acpi_hpet_t);
@@ -188,15 +207,22 @@ unsigned long write_acpi_tables(unsigned long start)
 	acpi_add_table(rsdp, hpet);
 
 	/* If we want to use HPET Timers Linux wants an MADT */
-	current	 = ( current + 0x07) & -0x08;
+	current = (current + 0x07) & -0x08;
 	printk(BIOS_DEBUG, "ACPI:  * MADT at %lx\n",current);
 	madt = (acpi_madt_t *) current;
 	acpi_create_madt(madt);
 	current += madt->header.length;
 	acpi_add_table(rsdp, madt);
 
+	/* HEST */
+	current	= (current + 0x07) & -0x08;
+	hest = (acpi_hest_t *)current;
+	acpi_write_hest((void *)current);
+	acpi_add_table(rsdp, (void *)current);
+	current += ((acpi_header_t *)current)->length;
+
 	/* SRAT */
-	current	 = ( current + 0x07) & -0x08;
+	current = (current + 0x07) & -0x08;
 	printk(BIOS_DEBUG, "ACPI:  * SRAT at %lx\n", current);
 	srat = (acpi_srat_t *) agesawrapper_getlateinitptr (PICK_SRAT);
 	if (srat != NULL) {
@@ -210,7 +236,7 @@ unsigned long write_acpi_tables(unsigned long start)
 	}
 
 	/* SLIT */
-	current	 = ( current + 0x07) & -0x08;
+	current = (current + 0x07) & -0x08;
 	printk(BIOS_DEBUG, "ACPI:  * SLIT at %lx\n", current);
 	slit = (acpi_slit_t *) agesawrapper_getlateinitptr (PICK_SLIT);
 	if (slit != NULL) {
@@ -224,7 +250,7 @@ unsigned long write_acpi_tables(unsigned long start)
 	}
 
 	/* SSDT */
-	current	 = ( current + 0x0f) & -0x10;
+	current = (current + 0x0f) & -0x10;
 	printk(BIOS_DEBUG, "ACPI:  * AGESA ALIB SSDT at %lx\n", current);
 	alib = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_ALIB);
 	if (alib != NULL) {
@@ -238,7 +264,7 @@ unsigned long write_acpi_tables(unsigned long start)
 	}
 
 #if 0 // The DSDT needs additional work for the AGESA SSDT Pstate table
-	current	 = ( current + 0x0f) & -0x10;
+	current = (current + 0x0f) & -0x10;
 	printk(BIOS_DEBUG, "ACPI:  * AGESA SSDT Pstate at %lx\n", current);
 	ssdt = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_PSTATE);
 	if (ssdt != NULL) {
@@ -252,7 +278,7 @@ unsigned long write_acpi_tables(unsigned long start)
 	acpi_add_table(rsdp,ssdt);
 #endif
 
-	current	 = ( current + 0x0f) & -0x10;
+	current = (current + 0x0f) & -0x10;
 	printk(BIOS_DEBUG, "ACPI:  * coreboot TOM SSDT2 at %lx\n", current);
 	ssdt2 = (acpi_header_t *) current;
 	acpi_create_ssdt_generator(ssdt2, ACPI_TABLE_CREATOR);
@@ -283,6 +309,9 @@ unsigned long write_acpi_tables(unsigned long start)
 
 	printk(BIOS_DEBUG, "fadt\n");
 	dump_mem(fadt, ((void *)fadt) + fadt->header.length);
+
+	printk(BIOS_DEBUG, "hest\n");
+	dump_mem(hest, ((void *)hest) + hest->header.length);
 #endif
 
 	printk(BIOS_INFO, "ACPI: done.\n");