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Message-ID: <5a4da771f04beea4e7488eee8080c0ace372e9a0.1722523312.git.mchehab+huawei@kernel.org>
Date: Thu, 1 Aug 2024 16:47:08 +0200
From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:
Cc: Jonathan Cameron <Jonathan.Cameron@...wei.com>,
Shiju Jose <shiju.jose@...wei.com>,
Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
"Michael S. Tsirkin" <mst@...hat.com>,
Ani Sinha <anisinha@...hat.com>,
Dongjiu Geng <gengdongjiu1@...il.com>,
Eric Blake <eblake@...hat.com>,
Igor Mammedov <imammedo@...hat.com>,
Markus Armbruster <armbru@...hat.com>,
Michael Roth <michael.roth@....com>,
Paolo Bonzini <pbonzini@...hat.com>,
Peter Maydell <peter.maydell@...aro.org>,
linux-kernel@...r.kernel.org,
qemu-arm@...gnu.org,
qemu-devel@...gnu.org
Subject: [PATCH v4 5/7] qapi/ghes-cper: add an interface to do generic CPER error injection
Creates a QAPI to be used for generic ACPI APEI hardware error
injection (HEST) via GHESv2.
The actual GHES code will be added at the followup patch.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---
MAINTAINERS | 7 ++++++
hw/acpi/Kconfig | 5 ++++
hw/acpi/ghes_cper.c | 53 +++++++++++++++++++++++++++++++++++++++++
hw/acpi/meson.build | 2 ++
hw/arm/Kconfig | 5 ++++
include/hw/acpi/ghes.h | 6 +++++
qapi/ghes-cper.json | 54 ++++++++++++++++++++++++++++++++++++++++++
qapi/meson.build | 1 +
qapi/qapi-schema.json | 1 +
9 files changed, 134 insertions(+)
create mode 100644 hw/acpi/ghes_cper.c
create mode 100644 qapi/ghes-cper.json
diff --git a/MAINTAINERS b/MAINTAINERS
index 98eddf7ae155..655edcb6688c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2075,6 +2075,13 @@ F: hw/acpi/ghes.c
F: include/hw/acpi/ghes.h
F: docs/specs/acpi_hest_ghes.rst
+ACPI/HEST/GHES/ARM processor CPER
+R: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
+S: Maintained
+F: hw/arm/ghes_cper.c
+F: hw/acpi/ghes_cper_stub.c
+F: qapi/ghes-cper.json
+
ppc4xx
L: qemu-ppc@...gnu.org
S: Orphan
diff --git a/hw/acpi/Kconfig b/hw/acpi/Kconfig
index e07d3204eb36..73ffbb82c150 100644
--- a/hw/acpi/Kconfig
+++ b/hw/acpi/Kconfig
@@ -51,6 +51,11 @@ config ACPI_APEI
bool
depends on ACPI
+config GHES_CPER
+ bool
+ depends on ACPI_APEI
+ default y
+
config ACPI_PCI
bool
depends on ACPI && PCI
diff --git a/hw/acpi/ghes_cper.c b/hw/acpi/ghes_cper.c
new file mode 100644
index 000000000000..0d32874a84f1
--- /dev/null
+++ b/hw/acpi/ghes_cper.c
@@ -0,0 +1,53 @@
+/*
+ * ARM Processor error injection
+ *
+ * Copyright(C) 2024 Huawei LTD.
+ *
+ * This code is licensed under the GPL version 2 or later. See the
+ * COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/error-report.h"
+#include "qapi/error.h"
+#include "qapi/qapi-commands-ghes-cper.h"
+#include "hw/acpi/ghes.h"
+
+void qmp_ghes_cper(CommonPlatformErrorRecord *qmp_cper,
+ Error **errp)
+{
+ unsigned int uuid_len = 0, i;
+ uint8List *p;
+ AcpiGhesCper cper;
+
+ for (p = qmp_cper->notification_type; p; p = p->next) {
+ uuid_len++;
+ if (uuid_len > 16) {
+ break;
+ }
+ cper.uuid[uuid_len - 1] = p->value;
+ }
+
+ if (uuid_len != 16) {
+ error_report("GHES CPER record has an invalid UUID size");
+ return;
+ }
+
+ cper.data_len = 0;
+
+ for (p = qmp_cper->raw_data; p; p = p->next) {
+ cper.data_len++;
+ }
+
+ cper.data = g_malloc(cper.data_len);
+
+ p = qmp_cper->raw_data;
+ for (i = 0; i < cper.data_len; i++, p = p->next) {
+ cper.data[i] = p->value;
+ }
+
+ /* TODO: call a function at ghes */
+
+ g_free(cper.data);
+}
diff --git a/hw/acpi/meson.build b/hw/acpi/meson.build
index fa5c07db9068..6cbf430eb66d 100644
--- a/hw/acpi/meson.build
+++ b/hw/acpi/meson.build
@@ -34,4 +34,6 @@ endif
system_ss.add(when: 'CONFIG_ACPI', if_false: files('acpi-stub.c', 'aml-build-stub.c', 'ghes-stub.c', 'acpi_interface.c'))
system_ss.add(when: 'CONFIG_ACPI_PCI_BRIDGE', if_false: files('pci-bridge-stub.c'))
system_ss.add_all(when: 'CONFIG_ACPI', if_true: acpi_ss)
+system_ss.add(when: 'CONFIG_GHES_CPER', if_true: files('ghes_cper.c'))
+system_ss.add(when: 'CONFIG_GHES_CPER', if_false: files('ghes_cper_stub.c'))
system_ss.add(files('acpi-qmp-cmds.c'))
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index 1ad60da7aa2d..bed6ba27d715 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -712,3 +712,8 @@ config ARMSSE
select UNIMP
select SSE_COUNTER
select SSE_TIMER
+
+config GHES_CPER
+ bool
+ depends on ARM
+ default y if AARCH64
diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
index 33be1eb5acf4..02ea3715f655 100644
--- a/include/hw/acpi/ghes.h
+++ b/include/hw/acpi/ghes.h
@@ -78,6 +78,12 @@ void acpi_ghes_add_fw_cfg(AcpiGhesState *vms, FWCfgState *s,
GArray *hardware_errors);
int acpi_ghes_record_errors(uint8_t notify, uint64_t error_physical_addr);
+typedef struct AcpiGhesCper {
+ uint8_t uuid[16];
+ char *data;
+ uint32_t data_len;
+} AcpiGhesCper;
+
/**
* acpi_ghes_present: Report whether ACPI GHES table is present
*
diff --git a/qapi/ghes-cper.json b/qapi/ghes-cper.json
new file mode 100644
index 000000000000..2b0438431054
--- /dev/null
+++ b/qapi/ghes-cper.json
@@ -0,0 +1,54 @@
+# -*- Mode: Python -*-
+# vim: filetype=python
+
+##
+# = GHESv2 CPER Error Injection
+#
+# These are defined at
+# ACPI 6.2: 18.3.2.8 Generic Hardware Error Source version 2
+# (GHESv2 - Type 10)
+##
+
+##
+# @CommonPlatformErrorRecord:
+#
+# Common Platform Error Record - CPER - as defined at the UEFI
+# specification. See
+# https://uefi.org/specs/UEFI/2.10/Apx_N_Common_Platform_Error_Record.html#record-header
+# for more details.
+#
+# @notification-type: pre-assigned GUID value indicating the record
+# association with an error event notification type, as defined
+# at https://uefi.org/specs/UEFI/2.10/Apx_N_Common_Platform_Error_Record.html#record-header
+#
+# @raw-data: Contains the payload of the CPER.
+#
+# Since: 9.2
+##
+{ 'struct': 'CommonPlatformErrorRecord',
+ 'data': {
+ 'notification-type': ['uint8'],
+ 'raw-data': ['uint8']
+ }
+}
+
+##
+# @ghes-cper:
+#
+# Inject ARM Processor error with data to be filled according with
+# ACPI 6.2 GHESv2 spec.
+#
+# @cper: a single CPER record to be sent to the guest OS.
+#
+# Features:
+#
+# @unstable: This command is experimental.
+#
+# Since: 9.2
+##
+{ 'command': 'ghes-cper',
+ 'data': {
+ 'cper': 'CommonPlatformErrorRecord'
+ },
+ 'features': [ 'unstable' ]
+}
diff --git a/qapi/meson.build b/qapi/meson.build
index e7bc54e5d047..bd13cd7d40c9 100644
--- a/qapi/meson.build
+++ b/qapi/meson.build
@@ -35,6 +35,7 @@ qapi_all_modules = [
'dump',
'ebpf',
'error',
+ 'ghes-cper',
'introspect',
'job',
'machine-common',
diff --git a/qapi/qapi-schema.json b/qapi/qapi-schema.json
index b1581988e4eb..54165c8d6655 100644
--- a/qapi/qapi-schema.json
+++ b/qapi/qapi-schema.json
@@ -81,3 +81,4 @@
{ 'include': 'vfio.json' }
{ 'include': 'cryptodev.json' }
{ 'include': 'cxl.json' }
+{ 'include': 'ghes-cper.json' }
--
2.45.2
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