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[PATCH v8 07/10] ACPI ERST: create ACPI ERST table for pc/x86 machines
From: |
Eric DeVolder |
Subject: |
[PATCH v8 07/10] ACPI ERST: create ACPI ERST table for pc/x86 machines |
Date: |
Fri, 15 Oct 2021 15:02:57 -0400 |
This change exposes ACPI ERST support for x86 guests.
Signed-off-by: Eric DeVolder <eric.devolder@oracle.com>
---
hw/i386/acpi-build.c | 9 +++++++++
hw/i386/acpi-microvm.c | 9 +++++++++
include/hw/acpi/erst.h | 5 +++++
3 files changed, 23 insertions(+)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 81418b7..9c2f9d9 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -43,6 +43,7 @@
#include "sysemu/tpm.h"
#include "hw/acpi/tpm.h"
#include "hw/acpi/vmgenid.h"
+#include "hw/acpi/erst.h"
#include "sysemu/tpm_backend.h"
#include "hw/rtc/mc146818rtc_regs.h"
#include "migration/vmstate.h"
@@ -2499,6 +2500,7 @@ void acpi_build(AcpiBuildTables *tables, MachineState
*machine)
GArray *tables_blob = tables->table_data;
AcpiSlicOem slic_oem = { .id = NULL, .table_id = NULL };
Object *vmgenid_dev;
+ Object *erst_dev;
char *oem_id;
char *oem_table_id;
@@ -2560,6 +2562,13 @@ void acpi_build(AcpiBuildTables *tables, MachineState
*machine)
ACPI_DEVICE_IF(x86ms->acpi_dev), x86ms->oem_id,
x86ms->oem_table_id);
+ erst_dev = find_erst_dev();
+ if (erst_dev) {
+ acpi_add_table(table_offsets, tables_blob);
+ build_erst(tables_blob, tables->linker, erst_dev,
+ x86ms->oem_id, x86ms->oem_table_id);
+ }
+
vmgenid_dev = find_vmgenid_dev();
if (vmgenid_dev) {
acpi_add_table(table_offsets, tables_blob);
diff --git a/hw/i386/acpi-microvm.c b/hw/i386/acpi-microvm.c
index 196d318..662c8ad 100644
--- a/hw/i386/acpi-microvm.c
+++ b/hw/i386/acpi-microvm.c
@@ -30,6 +30,7 @@
#include "hw/acpi/bios-linker-loader.h"
#include "hw/acpi/generic_event_device.h"
#include "hw/acpi/utils.h"
+#include "hw/acpi/erst.h"
#include "hw/i386/fw_cfg.h"
#include "hw/i386/microvm.h"
#include "hw/pci/pci.h"
@@ -158,6 +159,7 @@ static void acpi_build_microvm(AcpiBuildTables *tables,
X86MachineState *x86ms = X86_MACHINE(mms);
GArray *table_offsets;
GArray *tables_blob = tables->table_data;
+ Object *erst_dev;
unsigned dsdt, xsdt;
AcpiFadtData pmfadt = {
/* ACPI 5.0: 4.1 Hardware-Reduced ACPI */
@@ -207,6 +209,13 @@ static void acpi_build_microvm(AcpiBuildTables *tables,
ACPI_DEVICE_IF(x86ms->acpi_dev), x86ms->oem_id,
x86ms->oem_table_id);
+ erst_dev = find_erst_dev();
+ if (erst_dev) {
+ acpi_add_table(table_offsets, tables_blob);
+ build_erst(tables_blob, tables->linker, erst_dev,
+ x86ms->oem_id, x86ms->oem_table_id);
+ }
+
xsdt = tables_blob->len;
build_xsdt(tables_blob, tables->linker, table_offsets, x86ms->oem_id,
x86ms->oem_table_id);
diff --git a/include/hw/acpi/erst.h b/include/hw/acpi/erst.h
index 9d63717..b747fe7 100644
--- a/include/hw/acpi/erst.h
+++ b/include/hw/acpi/erst.h
@@ -16,4 +16,9 @@ void build_erst(GArray *table_data, BIOSLinker *linker,
Object *erst_dev,
#define TYPE_ACPI_ERST "acpi-erst"
+/* returns NULL unless there is exactly one device */
+static inline Object *find_erst_dev(void)
+{
+ return object_resolve_path_type("", TYPE_ACPI_ERST, NULL);
+}
#endif
--
1.8.3.1
- [PATCH v8 02/10] ACPI ERST: specification for ERST support, (continued)
- [PATCH v8 02/10] ACPI ERST: specification for ERST support, Eric DeVolder, 2021/10/15
- [PATCH v8 04/10] ACPI ERST: header file for ERST, Eric DeVolder, 2021/10/15
- [PATCH v8 01/10] ACPI ERST: bios-tables-test.c steps 1 and 2, Eric DeVolder, 2021/10/15
- [PATCH v8 10/10] ACPI ERST: step 6 of bios-tables-test.c, Eric DeVolder, 2021/10/15
- [PATCH v8 06/10] ACPI ERST: build the ACPI ERST table, Eric DeVolder, 2021/10/15
- [PATCH v8 08/10] ACPI ERST: qtest for ERST, Eric DeVolder, 2021/10/15
- [PATCH v8 05/10] ACPI ERST: support for ACPI ERST feature, Eric DeVolder, 2021/10/15
- [PATCH v8 07/10] ACPI ERST: create ACPI ERST table for pc/x86 machines,
Eric DeVolder <=
[PATCH v8 09/10] ACPI ERST: bios-tables-test testcase, Eric DeVolder, 2021/10/15
Re: [PATCH v8 00/10] acpi: Error Record Serialization Table, ERST, support for QEMU, Ani Sinha, 2021/10/19