* [PATCH v12 01/17] Revert "hw/acpi/ghes: Make ghes_record_cper_errors() static"
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
@ 2025-09-23 7:03 ` Mauro Carvalho Chehab
2025-09-23 7:03 ` [PATCH v12 02/17] acpi/ghes: Cleanup the code which gets ghes ged state Mauro Carvalho Chehab
` (15 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:03 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Ani Sinha, Dongjiu Geng, linux-kernel
The ghes_record_cper_errors() function was introduced to be used
by other types of errors, as part of the error injection
patch series. That's why it is not static.
Make it non-static again to allow its usage outside ghes.c
This reverts commit 611f3bdb20f7828b0813aa90d47d1275ef18329b.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
hw/acpi/ghes.c | 6 ++++--
include/hw/acpi/ghes.h | 2 ++
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index b85bb48195a0..b709c177cdea 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -390,8 +390,8 @@ static void get_hw_error_offsets(uint64_t ghes_addr,
*read_ack_register_addr = ghes_addr + sizeof(uint64_t);
}
-static void ghes_record_cper_errors(const void *cper, size_t len,
- uint16_t source_id, Error **errp)
+void ghes_record_cper_errors(const void *cper, size_t len,
+ uint16_t source_id, Error **errp)
{
uint64_t cper_addr = 0, read_ack_register_addr = 0, read_ack_register;
AcpiGedState *acpi_ged_state;
@@ -440,6 +440,8 @@ static void ghes_record_cper_errors(const void *cper, size_t len,
/* Write the generic error data entry into guest memory */
cpu_physical_memory_write(cper_addr, cper, len);
+
+ return;
}
int acpi_ghes_memory_errors(uint16_t source_id, uint64_t physical_address)
diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
index 578a582203ce..39619a2457cb 100644
--- a/include/hw/acpi/ghes.h
+++ b/include/hw/acpi/ghes.h
@@ -75,6 +75,8 @@ void acpi_build_hest(GArray *table_data, GArray *hardware_errors,
void acpi_ghes_add_fw_cfg(AcpiGhesState *vms, FWCfgState *s,
GArray *hardware_errors);
int acpi_ghes_memory_errors(uint16_t source_id, uint64_t error_physical_addr);
+void ghes_record_cper_errors(const void *cper, size_t len,
+ uint16_t source_id, Error **errp);
/**
* acpi_ghes_present: Report whether ACPI GHES table is present
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 02/17] acpi/ghes: Cleanup the code which gets ghes ged state
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
2025-09-23 7:03 ` [PATCH v12 01/17] Revert "hw/acpi/ghes: Make ghes_record_cper_errors() static" Mauro Carvalho Chehab
@ 2025-09-23 7:03 ` Mauro Carvalho Chehab
2025-09-23 7:03 ` [PATCH v12 03/17] acpi/ghes: prepare to change the way HEST offsets are calculated Mauro Carvalho Chehab
` (14 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:03 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Ani Sinha, Dongjiu Geng, Paolo Bonzini,
Peter Maydell, kvm, linux-kernel
Move the check logic into a common function and simplify the
code which checks if GHES is enabled and was properly setup.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
hw/acpi/ghes-stub.c | 7 ++++---
hw/acpi/ghes.c | 38 +++++++++++---------------------------
include/hw/acpi/ghes.h | 14 +++++++-------
target/arm/kvm.c | 7 +++++--
4 files changed, 27 insertions(+), 39 deletions(-)
diff --git a/hw/acpi/ghes-stub.c b/hw/acpi/ghes-stub.c
index 7cec1812dad9..40f660c246fe 100644
--- a/hw/acpi/ghes-stub.c
+++ b/hw/acpi/ghes-stub.c
@@ -11,12 +11,13 @@
#include "qemu/osdep.h"
#include "hw/acpi/ghes.h"
-int acpi_ghes_memory_errors(uint16_t source_id, uint64_t physical_address)
+int acpi_ghes_memory_errors(AcpiGhesState *ags, uint16_t source_id,
+ uint64_t physical_address)
{
return -1;
}
-bool acpi_ghes_present(void)
+AcpiGhesState *acpi_ghes_get_state(void)
{
- return false;
+ return NULL;
}
diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index b709c177cdea..84b891fd3dcf 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -360,18 +360,12 @@ void acpi_ghes_add_fw_cfg(AcpiGhesState *ags, FWCfgState *s,
/* Create a read-write fw_cfg file for Address */
fw_cfg_add_file_callback(s, ACPI_HW_ERROR_ADDR_FW_CFG_FILE, NULL, NULL,
NULL, &(ags->hw_error_le), sizeof(ags->hw_error_le), false);
-
- ags->present = true;
}
static void get_hw_error_offsets(uint64_t ghes_addr,
uint64_t *cper_addr,
uint64_t *read_ack_register_addr)
{
- if (!ghes_addr) {
- return;
- }
-
/*
* non-HEST version supports only one source, so no need to change
* the start offset based on the source ID. Also, we can't validate
@@ -390,35 +384,20 @@ static void get_hw_error_offsets(uint64_t ghes_addr,
*read_ack_register_addr = ghes_addr + sizeof(uint64_t);
}
-void ghes_record_cper_errors(const void *cper, size_t len,
+void ghes_record_cper_errors(AcpiGhesState *ags, const void *cper, size_t len,
uint16_t source_id, Error **errp)
{
uint64_t cper_addr = 0, read_ack_register_addr = 0, read_ack_register;
- AcpiGedState *acpi_ged_state;
- AcpiGhesState *ags;
if (len > ACPI_GHES_MAX_RAW_DATA_LENGTH) {
error_setg(errp, "GHES CPER record is too big: %zd", len);
return;
}
- acpi_ged_state = ACPI_GED(object_resolve_path_type("", TYPE_ACPI_GED,
- NULL));
- if (!acpi_ged_state) {
- error_setg(errp, "Can't find ACPI_GED object");
- return;
- }
- ags = &acpi_ged_state->ghes_state;
-
assert(ACPI_GHES_ERROR_SOURCE_COUNT == 1);
get_hw_error_offsets(le64_to_cpu(ags->hw_error_le),
&cper_addr, &read_ack_register_addr);
- if (!cper_addr) {
- error_setg(errp, "can not find Generic Error Status Block");
- return;
- }
-
cpu_physical_memory_read(read_ack_register_addr,
&read_ack_register, sizeof(read_ack_register));
@@ -444,7 +423,8 @@ void ghes_record_cper_errors(const void *cper, size_t len,
return;
}
-int acpi_ghes_memory_errors(uint16_t source_id, uint64_t physical_address)
+int acpi_ghes_memory_errors(AcpiGhesState *ags, uint16_t source_id,
+ uint64_t physical_address)
{
/* Memory Error Section Type */
const uint8_t guid[] =
@@ -470,7 +450,7 @@ int acpi_ghes_memory_errors(uint16_t source_id, uint64_t physical_address)
acpi_ghes_build_append_mem_cper(block, physical_address);
/* Report the error */
- ghes_record_cper_errors(block->data, block->len, source_id, &errp);
+ ghes_record_cper_errors(ags, block->data, block->len, source_id, &errp);
g_array_free(block, true);
@@ -482,7 +462,7 @@ int acpi_ghes_memory_errors(uint16_t source_id, uint64_t physical_address)
return 0;
}
-bool acpi_ghes_present(void)
+AcpiGhesState *acpi_ghes_get_state(void)
{
AcpiGedState *acpi_ged_state;
AcpiGhesState *ags;
@@ -491,8 +471,12 @@ bool acpi_ghes_present(void)
NULL));
if (!acpi_ged_state) {
- return false;
+ return NULL;
}
ags = &acpi_ged_state->ghes_state;
- return ags->present;
+
+ if (!ags->hw_error_le) {
+ return NULL;
+ }
+ return ags;
}
diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
index 39619a2457cb..f96ac3e85ca2 100644
--- a/include/hw/acpi/ghes.h
+++ b/include/hw/acpi/ghes.h
@@ -66,7 +66,6 @@ enum {
typedef struct AcpiGhesState {
uint64_t hw_error_le;
- bool present; /* True if GHES is present at all on this board */
} AcpiGhesState;
void acpi_build_hest(GArray *table_data, GArray *hardware_errors,
@@ -74,15 +73,16 @@ void acpi_build_hest(GArray *table_data, GArray *hardware_errors,
const char *oem_id, const char *oem_table_id);
void acpi_ghes_add_fw_cfg(AcpiGhesState *vms, FWCfgState *s,
GArray *hardware_errors);
-int acpi_ghes_memory_errors(uint16_t source_id, uint64_t error_physical_addr);
-void ghes_record_cper_errors(const void *cper, size_t len,
+int acpi_ghes_memory_errors(AcpiGhesState *ags, uint16_t source_id,
+ uint64_t error_physical_addr);
+void ghes_record_cper_errors(AcpiGhesState *ags, const void *cper, size_t len,
uint16_t source_id, Error **errp);
/**
- * acpi_ghes_present: Report whether ACPI GHES table is present
+ * acpi_ghes_get_state: Get a pointer for ACPI ghes state
*
- * Returns: true if the system has an ACPI GHES table and it is
- * safe to call acpi_ghes_memory_errors() to record a memory error.
+ * Returns: a pointer to ghes state if the system has an ACPI GHES table,
+ * NULL, otherwise.
*/
-bool acpi_ghes_present(void);
+AcpiGhesState *acpi_ghes_get_state(void);
#endif
diff --git a/target/arm/kvm.c b/target/arm/kvm.c
index c1ec6654ca67..bdc04aa41d54 100644
--- a/target/arm/kvm.c
+++ b/target/arm/kvm.c
@@ -2443,10 +2443,12 @@ void kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr)
{
ram_addr_t ram_addr;
hwaddr paddr;
+ AcpiGhesState *ags;
assert(code == BUS_MCEERR_AR || code == BUS_MCEERR_AO);
- if (acpi_ghes_present() && addr) {
+ ags = acpi_ghes_get_state();
+ if (ags && addr) {
ram_addr = qemu_ram_addr_from_host(addr);
if (ram_addr != RAM_ADDR_INVALID &&
kvm_physical_memory_addr_from_host(c->kvm_state, addr, &paddr)) {
@@ -2464,7 +2466,8 @@ void kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr)
*/
if (code == BUS_MCEERR_AR) {
kvm_cpu_synchronize_state(c);
- if (!acpi_ghes_memory_errors(ACPI_HEST_SRC_ID_SEA, paddr)) {
+ if (!acpi_ghes_memory_errors(ags, ACPI_HEST_SRC_ID_SEA,
+ paddr)) {
kvm_inject_arm_sea(c);
} else {
error_report("failed to record the error");
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 03/17] acpi/ghes: prepare to change the way HEST offsets are calculated
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
2025-09-23 7:03 ` [PATCH v12 01/17] Revert "hw/acpi/ghes: Make ghes_record_cper_errors() static" Mauro Carvalho Chehab
2025-09-23 7:03 ` [PATCH v12 02/17] acpi/ghes: Cleanup the code which gets ghes ged state Mauro Carvalho Chehab
@ 2025-09-23 7:03 ` Mauro Carvalho Chehab
2025-09-23 7:03 ` [PATCH v12 04/17] acpi/ghes: add a firmware file with HEST address Mauro Carvalho Chehab
` (13 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:03 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Ani Sinha, Dongjiu Geng, Peter Maydell,
Shannon Zhao, linux-kernel
Add a new ags flag to change the way HEST offsets are calculated.
Currently, offsets needed to store ACPI HEST offsets and read ack
are calculated based on a previous knowledge from the logic
which creates the HEST table.
Such logic is not generic, not allowing to easily add more HEST
entries nor replicates what OSPM does.
As the next patches will be adding a more generic logic, add a
new use_hest_addr, set to false, in preparation for such changes.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
hw/acpi/ghes.c | 39 ++++++++++++++++++++++++---------------
hw/arm/virt-acpi-build.c | 13 ++++++++++---
include/hw/acpi/ghes.h | 12 +++++++++++-
3 files changed, 45 insertions(+), 19 deletions(-)
diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index 84b891fd3dcf..9243b5ad4acb 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -206,7 +206,8 @@ ghes_gen_err_data_uncorrectable_recoverable(GArray *block,
* Initialize "etc/hardware_errors" and "etc/hardware_errors_addr" fw_cfg blobs.
* See docs/specs/acpi_hest_ghes.rst for blobs format.
*/
-static void build_ghes_error_table(GArray *hardware_errors, BIOSLinker *linker)
+static void build_ghes_error_table(AcpiGhesState *ags, GArray *hardware_errors,
+ BIOSLinker *linker)
{
int i, error_status_block_offset;
@@ -251,13 +252,15 @@ static void build_ghes_error_table(GArray *hardware_errors, BIOSLinker *linker)
i * ACPI_GHES_MAX_RAW_DATA_LENGTH);
}
- /*
- * tell firmware to write hardware_errors GPA into
- * hardware_errors_addr fw_cfg, once the former has been initialized.
- */
- bios_linker_loader_write_pointer(linker, ACPI_HW_ERROR_ADDR_FW_CFG_FILE, 0,
- sizeof(uint64_t),
- ACPI_HW_ERROR_FW_CFG_FILE, 0);
+ if (!ags->use_hest_addr) {
+ /*
+ * Tell firmware to write hardware_errors GPA into
+ * hardware_errors_addr fw_cfg, once the former has been initialized.
+ */
+ bios_linker_loader_write_pointer(linker, ACPI_HW_ERROR_ADDR_FW_CFG_FILE,
+ 0, sizeof(uint64_t),
+ ACPI_HW_ERROR_FW_CFG_FILE, 0);
+ }
}
/* Build Generic Hardware Error Source version 2 (GHESv2) */
@@ -331,14 +334,15 @@ static void build_ghes_v2(GArray *table_data,
}
/* Build Hardware Error Source Table */
-void acpi_build_hest(GArray *table_data, GArray *hardware_errors,
+void acpi_build_hest(AcpiGhesState *ags, GArray *table_data,
+ GArray *hardware_errors,
BIOSLinker *linker,
const char *oem_id, const char *oem_table_id)
{
AcpiTable table = { .sig = "HEST", .rev = 1,
.oem_id = oem_id, .oem_table_id = oem_table_id };
- build_ghes_error_table(hardware_errors, linker);
+ build_ghes_error_table(ags, hardware_errors, linker);
acpi_table_begin(&table, table_data);
@@ -357,9 +361,11 @@ void acpi_ghes_add_fw_cfg(AcpiGhesState *ags, FWCfgState *s,
fw_cfg_add_file(s, ACPI_HW_ERROR_FW_CFG_FILE, hardware_error->data,
hardware_error->len);
- /* Create a read-write fw_cfg file for Address */
- fw_cfg_add_file_callback(s, ACPI_HW_ERROR_ADDR_FW_CFG_FILE, NULL, NULL,
- NULL, &(ags->hw_error_le), sizeof(ags->hw_error_le), false);
+ if (!ags->use_hest_addr) {
+ /* Create a read-write fw_cfg file for Address */
+ fw_cfg_add_file_callback(s, ACPI_HW_ERROR_ADDR_FW_CFG_FILE, NULL, NULL,
+ NULL, &(ags->hw_error_le), sizeof(ags->hw_error_le), false);
+ }
}
static void get_hw_error_offsets(uint64_t ghes_addr,
@@ -395,8 +401,11 @@ void ghes_record_cper_errors(AcpiGhesState *ags, const void *cper, size_t len,
}
assert(ACPI_GHES_ERROR_SOURCE_COUNT == 1);
- get_hw_error_offsets(le64_to_cpu(ags->hw_error_le),
- &cper_addr, &read_ack_register_addr);
+
+ if (!ags->use_hest_addr) {
+ get_hw_error_offsets(le64_to_cpu(ags->hw_error_le),
+ &cper_addr, &read_ack_register_addr);
+ }
cpu_physical_memory_read(read_ack_register_addr,
&read_ack_register, sizeof(read_ack_register));
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index 96830f7c4ecf..bbe83fab9abb 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -1181,9 +1181,16 @@ void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables)
build_dbg2(tables_blob, tables->linker, vms);
if (vms->ras) {
- acpi_add_table(table_offsets, tables_blob);
- acpi_build_hest(tables_blob, tables->hardware_errors, tables->linker,
- vms->oem_id, vms->oem_table_id);
+ AcpiGedState *acpi_ged_state;
+ AcpiGhesState *ags;
+
+ acpi_ged_state = ACPI_GED(vms->acpi_dev);
+ ags = &acpi_ged_state->ghes_state;
+ if (ags) {
+ acpi_add_table(table_offsets, tables_blob);
+ acpi_build_hest(ags, tables_blob, tables->hardware_errors,
+ tables->linker, vms->oem_id, vms->oem_table_id);
+ }
}
if (ms->numa_state->num_nodes > 0) {
diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
index f96ac3e85ca2..411f592662af 100644
--- a/include/hw/acpi/ghes.h
+++ b/include/hw/acpi/ghes.h
@@ -64,11 +64,21 @@ enum {
ACPI_GHES_ERROR_SOURCE_COUNT
};
+/*
+ * AcpiGhesState stores GPA values that will be used to fill HEST entries.
+ *
+ * When use_hest_addr is false, the GPA of the etc/hardware_errors firmware
+ * is stored at hw_error_le. This is the default on QEMU 9.x.
+ *
+ * An GPA value equal to zero means that GHES is not present.
+ */
typedef struct AcpiGhesState {
uint64_t hw_error_le;
+ bool use_hest_addr; /* Currently, always false */
} AcpiGhesState;
-void acpi_build_hest(GArray *table_data, GArray *hardware_errors,
+void acpi_build_hest(AcpiGhesState *ags, GArray *table_data,
+ GArray *hardware_errors,
BIOSLinker *linker,
const char *oem_id, const char *oem_table_id);
void acpi_ghes_add_fw_cfg(AcpiGhesState *vms, FWCfgState *s,
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 04/17] acpi/ghes: add a firmware file with HEST address
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
` (2 preceding siblings ...)
2025-09-23 7:03 ` [PATCH v12 03/17] acpi/ghes: prepare to change the way HEST offsets are calculated Mauro Carvalho Chehab
@ 2025-09-23 7:03 ` Mauro Carvalho Chehab
2025-09-23 7:03 ` [PATCH v12 05/17] acpi/ghes: Use HEST table offsets when preparing GHES records Mauro Carvalho Chehab
` (12 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:03 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Ani Sinha, Dongjiu Geng, linux-kernel
Store HEST table address at GPA, placing its the start of the table at
hest_addr_le variable.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
hw/acpi/ghes.c | 22 ++++++++++++++++++++--
include/hw/acpi/ghes.h | 6 +++++-
2 files changed, 25 insertions(+), 3 deletions(-)
diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index 9243b5ad4acb..cbc96c1909f0 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -30,6 +30,7 @@
#define ACPI_HW_ERROR_FW_CFG_FILE "etc/hardware_errors"
#define ACPI_HW_ERROR_ADDR_FW_CFG_FILE "etc/hardware_errors_addr"
+#define ACPI_HEST_ADDR_FW_CFG_FILE "etc/acpi_table_hest_addr"
/* The max size in bytes for one error block */
#define ACPI_GHES_MAX_RAW_DATA_LENGTH (1 * KiB)
@@ -341,6 +342,9 @@ void acpi_build_hest(AcpiGhesState *ags, GArray *table_data,
{
AcpiTable table = { .sig = "HEST", .rev = 1,
.oem_id = oem_id, .oem_table_id = oem_table_id };
+ uint32_t hest_offset;
+
+ hest_offset = table_data->len;
build_ghes_error_table(ags, hardware_errors, linker);
@@ -352,6 +356,17 @@ void acpi_build_hest(AcpiGhesState *ags, GArray *table_data,
ACPI_GHES_NOTIFY_SEA, ACPI_HEST_SRC_ID_SEA);
acpi_table_end(linker, &table);
+
+ if (ags->use_hest_addr) {
+ /*
+ * Tell firmware to write into GPA the address of HEST via fw_cfg,
+ * once initialized.
+ */
+ bios_linker_loader_write_pointer(linker,
+ ACPI_HEST_ADDR_FW_CFG_FILE, 0,
+ sizeof(uint64_t),
+ ACPI_BUILD_TABLE_FILE, hest_offset);
+ }
}
void acpi_ghes_add_fw_cfg(AcpiGhesState *ags, FWCfgState *s,
@@ -361,7 +376,10 @@ void acpi_ghes_add_fw_cfg(AcpiGhesState *ags, FWCfgState *s,
fw_cfg_add_file(s, ACPI_HW_ERROR_FW_CFG_FILE, hardware_error->data,
hardware_error->len);
- if (!ags->use_hest_addr) {
+ if (ags->use_hest_addr) {
+ fw_cfg_add_file_callback(s, ACPI_HEST_ADDR_FW_CFG_FILE, NULL, NULL,
+ NULL, &(ags->hest_addr_le), sizeof(ags->hest_addr_le), false);
+ } else {
/* Create a read-write fw_cfg file for Address */
fw_cfg_add_file_callback(s, ACPI_HW_ERROR_ADDR_FW_CFG_FILE, NULL, NULL,
NULL, &(ags->hw_error_le), sizeof(ags->hw_error_le), false);
@@ -484,7 +502,7 @@ AcpiGhesState *acpi_ghes_get_state(void)
}
ags = &acpi_ged_state->ghes_state;
- if (!ags->hw_error_le) {
+ if (!ags->hw_error_le && !ags->hest_addr_le) {
return NULL;
}
return ags;
diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
index 411f592662af..ea9baab764e2 100644
--- a/include/hw/acpi/ghes.h
+++ b/include/hw/acpi/ghes.h
@@ -70,9 +70,13 @@ enum {
* When use_hest_addr is false, the GPA of the etc/hardware_errors firmware
* is stored at hw_error_le. This is the default on QEMU 9.x.
*
- * An GPA value equal to zero means that GHES is not present.
+ * When use_hest_addr is true, the GPA of the HEST table is stored at
+ * hest_addr_le. This is the default for QEMU 10.x and above.
+ *
+ * Whe both GPA values are equal to zero means that GHES is not present.
*/
typedef struct AcpiGhesState {
+ uint64_t hest_addr_le;
uint64_t hw_error_le;
bool use_hest_addr; /* Currently, always false */
} AcpiGhesState;
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 05/17] acpi/ghes: Use HEST table offsets when preparing GHES records
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
` (3 preceding siblings ...)
2025-09-23 7:03 ` [PATCH v12 04/17] acpi/ghes: add a firmware file with HEST address Mauro Carvalho Chehab
@ 2025-09-23 7:03 ` Mauro Carvalho Chehab
2025-09-23 7:04 ` [PATCH v12 06/17] acpi/ghes: don't hard-code the number of sources for HEST table Mauro Carvalho Chehab
` (11 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:03 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Ani Sinha, Dongjiu Geng, linux-kernel
There are two pointers that are needed during error injection:
1. The start address of the CPER block to be stored;
2. The address of the read ack.
It is preferable to calculate them from the HEST table. This allows
checking the source ID, the size of the table and the type of the
HEST error block structures.
Yet, keep the old code, as this is needed for migration purposes
from older QEMU versions.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
hw/acpi/ghes.c | 100 +++++++++++++++++++++++++++++++++++++++++
include/hw/acpi/ghes.h | 2 +-
2 files changed, 101 insertions(+), 1 deletion(-)
diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index cbc96c1909f0..668ca72587c7 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -41,6 +41,12 @@
/* Address offset in Generic Address Structure(GAS) */
#define GAS_ADDR_OFFSET 4
+/*
+ * ACPI spec 1.0b
+ * 5.2.3 System Description Table Header
+ */
+#define ACPI_DESC_HEADER_OFFSET 36
+
/*
* The total size of Generic Error Data Entry
* ACPI 6.1/6.2: 18.3.2.7.1 Generic Error Data,
@@ -61,6 +67,30 @@
*/
#define ACPI_GHES_GESB_SIZE 20
+/*
+ * See the memory layout map at docs/specs/acpi_hest_ghes.rst.
+ */
+
+/*
+ * ACPI 6.1: 18.3.2.8 Generic Hardware Error Source version 2
+ * Table 18-344 Generic Hardware Error Source version 2 (GHESv2) Structure
+ */
+#define HEST_GHES_V2_ENTRY_SIZE 92
+
+/*
+ * ACPI 6.1: 18.3.2.8 Generic Hardware Error Source version 2
+ * Table 18-344 Generic Hardware Error Source version 2 (GHESv2) Structure
+ * Read Ack Register
+ */
+#define GHES_READ_ACK_ADDR_OFF 64
+
+/*
+ * ACPI 6.1: 18.3.2.7: Generic Hardware Error Source
+ * Table 18-341 Generic Hardware Error Source Structure
+ * Error Status Address
+ */
+#define GHES_ERR_STATUS_ADDR_OFF 20
+
/*
* Values for error_severity field
*/
@@ -408,6 +438,73 @@ static void get_hw_error_offsets(uint64_t ghes_addr,
*read_ack_register_addr = ghes_addr + sizeof(uint64_t);
}
+static void get_ghes_source_offsets(uint16_t source_id,
+ uint64_t hest_addr,
+ uint64_t *cper_addr,
+ uint64_t *read_ack_start_addr,
+ Error **errp)
+{
+ uint64_t hest_err_block_addr, hest_read_ack_addr;
+ uint64_t err_source_entry, error_block_addr;
+ uint32_t num_sources, i;
+
+ hest_addr += ACPI_DESC_HEADER_OFFSET;
+
+ cpu_physical_memory_read(hest_addr, &num_sources,
+ sizeof(num_sources));
+ num_sources = le32_to_cpu(num_sources);
+
+ err_source_entry = hest_addr + sizeof(num_sources);
+
+ /*
+ * Currently, HEST Error source navigates only for GHESv2 tables
+ */
+ for (i = 0; i < num_sources; i++) {
+ uint64_t addr = err_source_entry;
+ uint16_t type, src_id;
+
+ cpu_physical_memory_read(addr, &type, sizeof(type));
+ type = le16_to_cpu(type);
+
+ /* For now, we only know the size of GHESv2 table */
+ if (type != ACPI_GHES_SOURCE_GENERIC_ERROR_V2) {
+ error_setg(errp, "HEST: type %d not supported.", type);
+ return;
+ }
+
+ /* Compare CPER source ID at the GHESv2 structure */
+ addr += sizeof(type);
+ cpu_physical_memory_read(addr, &src_id, sizeof(src_id));
+ if (le16_to_cpu(src_id) == source_id) {
+ break;
+ }
+
+ err_source_entry += HEST_GHES_V2_ENTRY_SIZE;
+ }
+ if (i == num_sources) {
+ error_setg(errp, "HEST: Source %d not found.", source_id);
+ return;
+ }
+
+ /* Navigate through table address pointers */
+ hest_err_block_addr = err_source_entry + GHES_ERR_STATUS_ADDR_OFF +
+ GAS_ADDR_OFFSET;
+
+ cpu_physical_memory_read(hest_err_block_addr, &error_block_addr,
+ sizeof(error_block_addr));
+ error_block_addr = le64_to_cpu(error_block_addr);
+
+ cpu_physical_memory_read(error_block_addr, cper_addr,
+ sizeof(*cper_addr));
+ *cper_addr = le64_to_cpu(*cper_addr);
+
+ hest_read_ack_addr = err_source_entry + GHES_READ_ACK_ADDR_OFF +
+ GAS_ADDR_OFFSET;
+ cpu_physical_memory_read(hest_read_ack_addr, read_ack_start_addr,
+ sizeof(*read_ack_start_addr));
+ *read_ack_start_addr = le64_to_cpu(*read_ack_start_addr);
+}
+
void ghes_record_cper_errors(AcpiGhesState *ags, const void *cper, size_t len,
uint16_t source_id, Error **errp)
{
@@ -423,6 +520,9 @@ void ghes_record_cper_errors(AcpiGhesState *ags, const void *cper, size_t len,
if (!ags->use_hest_addr) {
get_hw_error_offsets(le64_to_cpu(ags->hw_error_le),
&cper_addr, &read_ack_register_addr);
+ } else {
+ get_ghes_source_offsets(source_id, le64_to_cpu(ags->hest_addr_le),
+ &cper_addr, &read_ack_register_addr, errp);
}
cpu_physical_memory_read(read_ack_register_addr,
diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
index ea9baab764e2..5265102ba51f 100644
--- a/include/hw/acpi/ghes.h
+++ b/include/hw/acpi/ghes.h
@@ -78,7 +78,7 @@ enum {
typedef struct AcpiGhesState {
uint64_t hest_addr_le;
uint64_t hw_error_le;
- bool use_hest_addr; /* Currently, always false */
+ bool use_hest_addr; /* True if HEST address is present */
} AcpiGhesState;
void acpi_build_hest(AcpiGhesState *ags, GArray *table_data,
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 06/17] acpi/ghes: don't hard-code the number of sources for HEST table
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
` (4 preceding siblings ...)
2025-09-23 7:03 ` [PATCH v12 05/17] acpi/ghes: Use HEST table offsets when preparing GHES records Mauro Carvalho Chehab
@ 2025-09-23 7:04 ` Mauro Carvalho Chehab
2025-09-23 7:04 ` [PATCH v12 07/17] acpi/ghes: add a notifier to notify when error data is ready Mauro Carvalho Chehab
` (10 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:04 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Ani Sinha, Dongjiu Geng, Paolo Bonzini,
Peter Maydell, Shannon Zhao, kvm, linux-kernel
The current code is actually dependent on having just one error
structure with a single source, as any change there would cause
migration issues.
As the number of sources should be arch-dependent, as it will depend on
what kind of notifications will exist, and how many errors can be
reported at the same time, change the logic to be more flexible,
allowing the number of sources to be defined when building the
HEST table by the caller.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
hw/acpi/ghes.c | 39 +++++++++++++++++++++------------------
hw/arm/virt-acpi-build.c | 8 +++++++-
include/hw/acpi/ghes.h | 17 ++++++++++++-----
target/arm/kvm.c | 2 +-
4 files changed, 41 insertions(+), 25 deletions(-)
diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index 668ca72587c7..f49d0d628fc4 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -238,17 +238,17 @@ ghes_gen_err_data_uncorrectable_recoverable(GArray *block,
* See docs/specs/acpi_hest_ghes.rst for blobs format.
*/
static void build_ghes_error_table(AcpiGhesState *ags, GArray *hardware_errors,
- BIOSLinker *linker)
+ BIOSLinker *linker, int num_sources)
{
int i, error_status_block_offset;
/* Build error_block_address */
- for (i = 0; i < ACPI_GHES_ERROR_SOURCE_COUNT; i++) {
+ for (i = 0; i < num_sources; i++) {
build_append_int_noprefix(hardware_errors, 0, sizeof(uint64_t));
}
/* Build read_ack_register */
- for (i = 0; i < ACPI_GHES_ERROR_SOURCE_COUNT; i++) {
+ for (i = 0; i < num_sources; i++) {
/*
* Initialize the value of read_ack_register to 1, so GHES can be
* writable after (re)boot.
@@ -263,13 +263,13 @@ static void build_ghes_error_table(AcpiGhesState *ags, GArray *hardware_errors,
/* Reserve space for Error Status Data Block */
acpi_data_push(hardware_errors,
- ACPI_GHES_MAX_RAW_DATA_LENGTH * ACPI_GHES_ERROR_SOURCE_COUNT);
+ ACPI_GHES_MAX_RAW_DATA_LENGTH * num_sources);
/* Tell guest firmware to place hardware_errors blob into RAM */
bios_linker_loader_alloc(linker, ACPI_HW_ERROR_FW_CFG_FILE,
hardware_errors, sizeof(uint64_t), false);
- for (i = 0; i < ACPI_GHES_ERROR_SOURCE_COUNT; i++) {
+ for (i = 0; i < num_sources; i++) {
/*
* Tell firmware to patch error_block_address entries to point to
* corresponding "Generic Error Status Block"
@@ -295,12 +295,14 @@ static void build_ghes_error_table(AcpiGhesState *ags, GArray *hardware_errors,
}
/* Build Generic Hardware Error Source version 2 (GHESv2) */
-static void build_ghes_v2(GArray *table_data,
- BIOSLinker *linker,
- enum AcpiGhesNotifyType notify,
- uint16_t source_id)
+static void build_ghes_v2_entry(GArray *table_data,
+ BIOSLinker *linker,
+ const AcpiNotificationSourceId *notif_src,
+ uint16_t index, int num_sources)
{
uint64_t address_offset;
+ const uint16_t notify = notif_src->notify;
+ const uint16_t source_id = notif_src->source_id;
/*
* Type:
@@ -331,7 +333,7 @@ static void build_ghes_v2(GArray *table_data,
address_offset + GAS_ADDR_OFFSET,
sizeof(uint64_t),
ACPI_HW_ERROR_FW_CFG_FILE,
- source_id * sizeof(uint64_t));
+ index * sizeof(uint64_t));
/* Notification Structure */
build_ghes_hw_error_notification(table_data, notify);
@@ -351,8 +353,7 @@ static void build_ghes_v2(GArray *table_data,
address_offset + GAS_ADDR_OFFSET,
sizeof(uint64_t),
ACPI_HW_ERROR_FW_CFG_FILE,
- (ACPI_GHES_ERROR_SOURCE_COUNT + source_id)
- * sizeof(uint64_t));
+ (num_sources + index) * sizeof(uint64_t));
/*
* Read Ack Preserve field
@@ -368,22 +369,26 @@ static void build_ghes_v2(GArray *table_data,
void acpi_build_hest(AcpiGhesState *ags, GArray *table_data,
GArray *hardware_errors,
BIOSLinker *linker,
+ const AcpiNotificationSourceId *notif_source,
+ int num_sources,
const char *oem_id, const char *oem_table_id)
{
AcpiTable table = { .sig = "HEST", .rev = 1,
.oem_id = oem_id, .oem_table_id = oem_table_id };
uint32_t hest_offset;
+ int i;
hest_offset = table_data->len;
- build_ghes_error_table(ags, hardware_errors, linker);
+ build_ghes_error_table(ags, hardware_errors, linker, num_sources);
acpi_table_begin(&table, table_data);
/* Error Source Count */
- build_append_int_noprefix(table_data, ACPI_GHES_ERROR_SOURCE_COUNT, 4);
- build_ghes_v2(table_data, linker,
- ACPI_GHES_NOTIFY_SEA, ACPI_HEST_SRC_ID_SEA);
+ build_append_int_noprefix(table_data, num_sources, 4);
+ for (i = 0; i < num_sources; i++) {
+ build_ghes_v2_entry(table_data, linker, ¬if_source[i], i, num_sources);
+ }
acpi_table_end(linker, &table);
@@ -515,8 +520,6 @@ void ghes_record_cper_errors(AcpiGhesState *ags, const void *cper, size_t len,
return;
}
- assert(ACPI_GHES_ERROR_SOURCE_COUNT == 1);
-
if (!ags->use_hest_addr) {
get_hw_error_offsets(le64_to_cpu(ags->hw_error_le),
&cper_addr, &read_ack_register_addr);
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index bbe83fab9abb..c856d293c6e8 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -1125,6 +1125,10 @@ static void acpi_align_size(GArray *blob, unsigned align)
g_array_set_size(blob, ROUND_UP(acpi_data_len(blob), align));
}
+static const AcpiNotificationSourceId hest_ghes_notify[] = {
+ { ACPI_HEST_SRC_ID_SYNC, ACPI_GHES_NOTIFY_SEA },
+};
+
static
void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables)
{
@@ -1189,7 +1193,9 @@ void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables)
if (ags) {
acpi_add_table(table_offsets, tables_blob);
acpi_build_hest(ags, tables_blob, tables->hardware_errors,
- tables->linker, vms->oem_id, vms->oem_table_id);
+ tables->linker, hest_ghes_notify,
+ ARRAY_SIZE(hest_ghes_notify),
+ vms->oem_id, vms->oem_table_id);
}
}
diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
index 5265102ba51f..8c4b08433760 100644
--- a/include/hw/acpi/ghes.h
+++ b/include/hw/acpi/ghes.h
@@ -57,13 +57,18 @@ enum AcpiGhesNotifyType {
ACPI_GHES_NOTIFY_RESERVED = 12
};
-enum {
- ACPI_HEST_SRC_ID_SEA = 0,
- /* future ids go here */
-
- ACPI_GHES_ERROR_SOURCE_COUNT
+/*
+ * ID numbers used to fill HEST source ID field
+ */
+enum AcpiGhesSourceID {
+ ACPI_HEST_SRC_ID_SYNC,
};
+typedef struct AcpiNotificationSourceId {
+ enum AcpiGhesSourceID source_id;
+ enum AcpiGhesNotifyType notify;
+} AcpiNotificationSourceId;
+
/*
* AcpiGhesState stores GPA values that will be used to fill HEST entries.
*
@@ -84,6 +89,8 @@ typedef struct AcpiGhesState {
void acpi_build_hest(AcpiGhesState *ags, GArray *table_data,
GArray *hardware_errors,
BIOSLinker *linker,
+ const AcpiNotificationSourceId * const notif_source,
+ int num_sources,
const char *oem_id, const char *oem_table_id);
void acpi_ghes_add_fw_cfg(AcpiGhesState *vms, FWCfgState *s,
GArray *hardware_errors);
diff --git a/target/arm/kvm.c b/target/arm/kvm.c
index bdc04aa41d54..e73415c00059 100644
--- a/target/arm/kvm.c
+++ b/target/arm/kvm.c
@@ -2466,7 +2466,7 @@ void kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr)
*/
if (code == BUS_MCEERR_AR) {
kvm_cpu_synchronize_state(c);
- if (!acpi_ghes_memory_errors(ags, ACPI_HEST_SRC_ID_SEA,
+ if (!acpi_ghes_memory_errors(ags, ACPI_HEST_SRC_ID_SYNC,
paddr)) {
kvm_inject_arm_sea(c);
} else {
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 07/17] acpi/ghes: add a notifier to notify when error data is ready
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
` (5 preceding siblings ...)
2025-09-23 7:04 ` [PATCH v12 06/17] acpi/ghes: don't hard-code the number of sources for HEST table Mauro Carvalho Chehab
@ 2025-09-23 7:04 ` Mauro Carvalho Chehab
2025-09-23 7:04 ` [PATCH v12 08/17] acpi/generic_event_device: Update GHES migration to cover hest addr Mauro Carvalho Chehab
` (9 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:04 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Ani Sinha, Dongjiu Geng, linux-kernel
Some error injection notify methods are async, like GPIO
notify. Add a notifier to be used when the error record is
ready to be sent to the guest OS.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>
---
hw/acpi/ghes.c | 5 ++++-
include/hw/acpi/ghes.h | 3 +++
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index f49d0d628fc4..d666f1b10b5f 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -510,6 +510,9 @@ static void get_ghes_source_offsets(uint16_t source_id,
*read_ack_start_addr = le64_to_cpu(*read_ack_start_addr);
}
+NotifierList acpi_generic_error_notifiers =
+ NOTIFIER_LIST_INITIALIZER(acpi_generic_error_notifiers);
+
void ghes_record_cper_errors(AcpiGhesState *ags, const void *cper, size_t len,
uint16_t source_id, Error **errp)
{
@@ -550,7 +553,7 @@ void ghes_record_cper_errors(AcpiGhesState *ags, const void *cper, size_t len,
/* Write the generic error data entry into guest memory */
cpu_physical_memory_write(cper_addr, cper, len);
- return;
+ notifier_list_notify(&acpi_generic_error_notifiers, NULL);
}
int acpi_ghes_memory_errors(AcpiGhesState *ags, uint16_t source_id,
diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
index 8c4b08433760..390943e46d99 100644
--- a/include/hw/acpi/ghes.h
+++ b/include/hw/acpi/ghes.h
@@ -24,6 +24,9 @@
#include "hw/acpi/bios-linker-loader.h"
#include "qapi/error.h"
+#include "qemu/notify.h"
+
+extern NotifierList acpi_generic_error_notifiers;
/*
* Values for Hardware Error Notification Type field
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 08/17] acpi/generic_event_device: Update GHES migration to cover hest addr
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
` (6 preceding siblings ...)
2025-09-23 7:04 ` [PATCH v12 07/17] acpi/ghes: add a notifier to notify when error data is ready Mauro Carvalho Chehab
@ 2025-09-23 7:04 ` Mauro Carvalho Chehab
2025-09-23 7:04 ` [PATCH v12 09/17] acpi/generic_event_device: add logic to detect if HEST addr is available Mauro Carvalho Chehab
` (8 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:04 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Ani Sinha, linux-kernel
The GHES migration logic should now support HEST table location too.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
hw/acpi/generic_event_device.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c
index 95682b79a2df..55998303c22f 100644
--- a/hw/acpi/generic_event_device.c
+++ b/hw/acpi/generic_event_device.c
@@ -436,6 +436,34 @@ static const VMStateDescription vmstate_pcihp_state = {
}
};
+static const VMStateDescription vmstate_hest = {
+ .name = "acpi-hest",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (const VMStateField[]) {
+ VMSTATE_UINT64(hest_addr_le, AcpiGhesState),
+ VMSTATE_END_OF_LIST()
+ },
+};
+
+static bool hest_needed(void *opaque)
+{
+ AcpiGedState *s = opaque;
+ return s->ghes_state.hest_addr_le;
+}
+
+static const VMStateDescription vmstate_hest_state = {
+ .name = "acpi-ged/hest",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .needed = hest_needed,
+ .fields = (const VMStateField[]) {
+ VMSTATE_STRUCT(ghes_state, AcpiGedState, 1,
+ vmstate_hest, AcpiGhesState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static const VMStateDescription vmstate_acpi_ged = {
.name = "acpi-ged",
.version_id = 1,
@@ -449,6 +477,7 @@ static const VMStateDescription vmstate_acpi_ged = {
&vmstate_cpuhp_state,
&vmstate_ghes_state,
&vmstate_pcihp_state,
+ &vmstate_hest_state,
NULL
}
};
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 09/17] acpi/generic_event_device: add logic to detect if HEST addr is available
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
` (7 preceding siblings ...)
2025-09-23 7:04 ` [PATCH v12 08/17] acpi/generic_event_device: Update GHES migration to cover hest addr Mauro Carvalho Chehab
@ 2025-09-23 7:04 ` Mauro Carvalho Chehab
2025-09-23 7:04 ` [PATCH v12 10/17] acpi/generic_event_device: add an APEI error device Mauro Carvalho Chehab
` (7 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:04 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Philippe Mathieu-Daudé, Ani Sinha,
Eduardo Habkost, Marcel Apfelbaum, Peter Maydell, Shannon Zhao,
Yanan Wang, Zhao Liu, linux-kernel
Create a new property (x-has-hest-addr) and use it to detect if
the GHES table offsets can be calculated from the HEST address
(qemu 10.0 and upper) or via the legacy way via an offset obtained
from the hardware_errors firmware file.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
hw/acpi/generic_event_device.c | 2 ++
hw/arm/virt-acpi-build.c | 18 ++++++++++++++++--
hw/core/machine.c | 5 ++++-
3 files changed, 22 insertions(+), 3 deletions(-)
diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c
index 55998303c22f..b1ff6ab74d8f 100644
--- a/hw/acpi/generic_event_device.c
+++ b/hw/acpi/generic_event_device.c
@@ -349,6 +349,8 @@ static const Property acpi_ged_properties[] = {
pcihp_state.use_acpi_hotplug_bridge, 0),
DEFINE_PROP_LINK("bus", AcpiGedState, pcihp_state.root,
TYPE_PCI_BUS, PCIBus *),
+ DEFINE_PROP_BOOL("x-has-hest-addr", AcpiGedState,
+ ghes_state.use_hest_addr, false),
};
static const VMStateDescription vmstate_memhp_state = {
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index c856d293c6e8..ff3b7a794b84 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -1129,6 +1129,10 @@ static const AcpiNotificationSourceId hest_ghes_notify[] = {
{ ACPI_HEST_SRC_ID_SYNC, ACPI_GHES_NOTIFY_SEA },
};
+static const AcpiNotificationSourceId hest_ghes_notify_10_0[] = {
+ { ACPI_HEST_SRC_ID_SYNC, ACPI_GHES_NOTIFY_SEA },
+};
+
static
void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables)
{
@@ -1186,15 +1190,25 @@ void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables)
if (vms->ras) {
AcpiGedState *acpi_ged_state;
+ static const AcpiNotificationSourceId *notify;
+ unsigned int notify_sz;
AcpiGhesState *ags;
acpi_ged_state = ACPI_GED(vms->acpi_dev);
ags = &acpi_ged_state->ghes_state;
if (ags) {
acpi_add_table(table_offsets, tables_blob);
+
+ if (!ags->use_hest_addr) {
+ notify = hest_ghes_notify_10_0;
+ notify_sz = ARRAY_SIZE(hest_ghes_notify_10_0);
+ } else {
+ notify = hest_ghes_notify;
+ notify_sz = ARRAY_SIZE(hest_ghes_notify);
+ }
+
acpi_build_hest(ags, tables_blob, tables->hardware_errors,
- tables->linker, hest_ghes_notify,
- ARRAY_SIZE(hest_ghes_notify),
+ tables->linker, notify, notify_sz,
vms->oem_id, vms->oem_table_id);
}
}
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 38c949c4f2ce..7b7a381b0ade 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -35,9 +35,12 @@
#include "hw/virtio/virtio-pci.h"
#include "hw/virtio/virtio-net.h"
#include "hw/virtio/virtio-iommu.h"
+#include "hw/acpi/generic_event_device.h"
#include "audio/audio.h"
-GlobalProperty hw_compat_10_1[] = {};
+GlobalProperty hw_compat_10_1[] = {
+ { TYPE_ACPI_GED, "x-has-hest-addr", "false" },
+};
const size_t hw_compat_10_1_len = G_N_ELEMENTS(hw_compat_10_1);
GlobalProperty hw_compat_10_0[] = {
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 10/17] acpi/generic_event_device: add an APEI error device
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
` (8 preceding siblings ...)
2025-09-23 7:04 ` [PATCH v12 09/17] acpi/generic_event_device: add logic to detect if HEST addr is available Mauro Carvalho Chehab
@ 2025-09-23 7:04 ` Mauro Carvalho Chehab
2025-09-23 7:04 ` [PATCH v12 11/17] tests/acpi: virt: allow acpi table changes at DSDT and HEST tables Mauro Carvalho Chehab
` (6 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:04 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Ani Sinha, linux-kernel
Adds a generic error device to handle generic hardware error
events as specified at ACPI 6.5 specification at 18.3.2.7.2:
https://uefi.org/specs/ACPI/6.5/18_Platform_Error_Interfaces.html#event-notification-for-generic-error-sources
using HID PNP0C33.
The PNP0C33 device is used to report hardware errors to
the guest via ACPI APEI Generic Hardware Error Source (GHES).
Co-authored-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Co-authored-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
hw/acpi/aml-build.c | 10 ++++++++++
hw/acpi/generic_event_device.c | 13 +++++++++++++
include/hw/acpi/acpi_dev_interface.h | 1 +
include/hw/acpi/aml-build.h | 2 ++
include/hw/acpi/generic_event_device.h | 1 +
5 files changed, 27 insertions(+)
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 1e685f982f31..2d5826a8f134 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -2629,3 +2629,13 @@ Aml *aml_i2c_serial_bus_device(uint16_t address, const char *resource_source)
return var;
}
+
+/* ACPI 5.0b: 18.3.2.6.2 Event Notification For Generic Error Sources */
+Aml *aml_error_device(void)
+{
+ Aml *dev = aml_device(ACPI_APEI_ERROR_DEVICE);
+ aml_append(dev, aml_name_decl("_HID", aml_string("PNP0C33")));
+ aml_append(dev, aml_name_decl("_UID", aml_int(0)));
+
+ return dev;
+}
diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c
index b1ff6ab74d8f..e575b9404be4 100644
--- a/hw/acpi/generic_event_device.c
+++ b/hw/acpi/generic_event_device.c
@@ -30,6 +30,7 @@ static const uint32_t ged_supported_events[] = {
ACPI_GED_NVDIMM_HOTPLUG_EVT,
ACPI_GED_CPU_HOTPLUG_EVT,
ACPI_GED_PCI_HOTPLUG_EVT,
+ ACPI_GED_ERROR_EVT,
};
/*
@@ -120,6 +121,16 @@ void build_ged_aml(Aml *table, const char *name, HotplugHandler *hotplug_dev,
aml_notify(aml_name(ACPI_POWER_BUTTON_DEVICE),
aml_int(0x80)));
break;
+ case ACPI_GED_ERROR_EVT:
+ /*
+ * ACPI 5.0b: 5.6.6 Device Object Notifications
+ * Table 5-135 Error Device Notification Values
+ * Defines 0x80 as the value to be used on notifications
+ */
+ aml_append(if_ctx,
+ aml_notify(aml_name(ACPI_APEI_ERROR_DEVICE),
+ aml_int(0x80)));
+ break;
case ACPI_GED_NVDIMM_HOTPLUG_EVT:
aml_append(if_ctx,
aml_notify(aml_name("\\_SB.NVDR"),
@@ -320,6 +331,8 @@ static void acpi_ged_send_event(AcpiDeviceIf *adev, AcpiEventStatusBits ev)
sel = ACPI_GED_MEM_HOTPLUG_EVT;
} else if (ev & ACPI_POWER_DOWN_STATUS) {
sel = ACPI_GED_PWR_DOWN_EVT;
+ } else if (ev & ACPI_GENERIC_ERROR) {
+ sel = ACPI_GED_ERROR_EVT;
} else if (ev & ACPI_NVDIMM_HOTPLUG_STATUS) {
sel = ACPI_GED_NVDIMM_HOTPLUG_EVT;
} else if (ev & ACPI_CPU_HOTPLUG_STATUS) {
diff --git a/include/hw/acpi/acpi_dev_interface.h b/include/hw/acpi/acpi_dev_interface.h
index 68d9d15f50aa..8294f8f0ccca 100644
--- a/include/hw/acpi/acpi_dev_interface.h
+++ b/include/hw/acpi/acpi_dev_interface.h
@@ -13,6 +13,7 @@ typedef enum {
ACPI_NVDIMM_HOTPLUG_STATUS = 16,
ACPI_VMGENID_CHANGE_STATUS = 32,
ACPI_POWER_DOWN_STATUS = 64,
+ ACPI_GENERIC_ERROR = 128,
} AcpiEventStatusBits;
#define TYPE_ACPI_DEVICE_IF "acpi-device-interface"
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index c18f68134246..f38e12971932 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -252,6 +252,7 @@ struct CrsRangeSet {
/* Consumer/Producer */
#define AML_SERIAL_BUS_FLAG_CONSUME_ONLY (1 << 1)
+#define ACPI_APEI_ERROR_DEVICE "GEDD"
/**
* init_aml_allocator:
*
@@ -382,6 +383,7 @@ Aml *aml_dma(AmlDmaType typ, AmlDmaBusMaster bm, AmlTransferSize sz,
uint8_t channel);
Aml *aml_sleep(uint64_t msec);
Aml *aml_i2c_serial_bus_device(uint16_t address, const char *resource_source);
+Aml *aml_error_device(void);
/* Block AML object primitives */
Aml *aml_scope(const char *name_format, ...) G_GNUC_PRINTF(1, 2);
diff --git a/include/hw/acpi/generic_event_device.h b/include/hw/acpi/generic_event_device.h
index 2c5b055327a4..130c014d3f0e 100644
--- a/include/hw/acpi/generic_event_device.h
+++ b/include/hw/acpi/generic_event_device.h
@@ -103,6 +103,7 @@ OBJECT_DECLARE_TYPE(AcpiGedState, AcpiGedClass, ACPI_GED)
#define ACPI_GED_NVDIMM_HOTPLUG_EVT 0x4
#define ACPI_GED_CPU_HOTPLUG_EVT 0x8
#define ACPI_GED_PCI_HOTPLUG_EVT 0x10
+#define ACPI_GED_ERROR_EVT 0x20
typedef struct GEDState {
MemoryRegion evt;
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 11/17] tests/acpi: virt: allow acpi table changes at DSDT and HEST tables
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
` (9 preceding siblings ...)
2025-09-23 7:04 ` [PATCH v12 10/17] acpi/generic_event_device: add an APEI error device Mauro Carvalho Chehab
@ 2025-09-23 7:04 ` Mauro Carvalho Chehab
2025-09-23 7:04 ` [PATCH v12 12/17] arm/virt: Wire up a GED error device for ACPI / GHES Mauro Carvalho Chehab
` (5 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:04 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Ani Sinha, linux-kernel
We'll be adding a new GED device for HEST GPIO notification and
increasing the number of entries at the HEST table.
Blocklist testing HEST and DSDT tables until such changes
are completed.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
tests/qtest/bios-tables-test-allowed-diff.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/tests/qtest/bios-tables-test-allowed-diff.h b/tests/qtest/bios-tables-test-allowed-diff.h
index dfb8523c8bf4..45f256946751 100644
--- a/tests/qtest/bios-tables-test-allowed-diff.h
+++ b/tests/qtest/bios-tables-test-allowed-diff.h
@@ -1 +1,10 @@
/* List of comma-separated changed AML files to ignore */
+"tests/data/acpi/aarch64/virt/HEST",
+"tests/data/acpi/aarch64/virt/DSDT",
+"tests/data/acpi/aarch64/virt/DSDT.acpihmatvirt",
+"tests/data/acpi/aarch64/virt/DSDT.acpipcihp",
+"tests/data/acpi/aarch64/virt/DSDT.hpoffacpiindex",
+"tests/data/acpi/aarch64/virt/DSDT.memhp",
+"tests/data/acpi/aarch64/virt/DSDT.pxb",
+"tests/data/acpi/aarch64/virt/DSDT.topology",
+"tests/data/acpi/aarch64/virt/DSDT.viot",
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 12/17] arm/virt: Wire up a GED error device for ACPI / GHES
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
` (10 preceding siblings ...)
2025-09-23 7:04 ` [PATCH v12 11/17] tests/acpi: virt: allow acpi table changes at DSDT and HEST tables Mauro Carvalho Chehab
@ 2025-09-23 7:04 ` Mauro Carvalho Chehab
2025-09-23 7:04 ` [PATCH v12 13/17] qapi/acpi-hest: add an interface to do generic CPER error injection Mauro Carvalho Chehab
` (4 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:04 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Ani Sinha, Peter Maydell, Shannon Zhao,
linux-kernel
Adds support to ARM virtualization to allow handling
generic error ACPI Event via GED & error source device.
It is aligned with Linux Kernel patch:
https://lore.kernel.org/lkml/1272350481-27951-8-git-send-email-ying.huang@intel.com/
Co-authored-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Co-authored-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
hw/arm/virt-acpi-build.c | 1 +
hw/arm/virt.c | 12 +++++++++++-
include/hw/arm/virt.h | 1 +
3 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index ff3b7a794b84..2b63008df01d 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -1066,6 +1066,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
}
acpi_dsdt_add_power_button(scope);
+ aml_append(scope, aml_error_device());
#ifdef CONFIG_TPM
acpi_dsdt_add_tpm(scope, vms);
#endif
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 02209fadcfac..6960f6113fef 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -693,7 +693,7 @@ static inline DeviceState *create_acpi_ged(VirtMachineState *vms)
MachineState *ms = MACHINE(vms);
SysBusDevice *sbdev;
int irq = vms->irqmap[VIRT_ACPI_GED];
- uint32_t event = ACPI_GED_PWR_DOWN_EVT;
+ uint32_t event = ACPI_GED_PWR_DOWN_EVT | ACPI_GED_ERROR_EVT;
bool acpi_pcihp;
if (ms->ram_slots) {
@@ -1050,6 +1050,13 @@ static void virt_powerdown_req(Notifier *n, void *opaque)
}
}
+static void virt_generic_error_req(Notifier *n, void *opaque)
+{
+ VirtMachineState *s = container_of(n, VirtMachineState, generic_error_notifier);
+
+ acpi_send_event(s->acpi_dev, ACPI_GENERIC_ERROR);
+}
+
static void create_gpio_keys(char *fdt, DeviceState *pl061_dev,
uint32_t phandle)
{
@@ -2500,6 +2507,9 @@ static void machvirt_init(MachineState *machine)
if (has_ged && aarch64 && firmware_loaded && virt_is_acpi_enabled(vms)) {
vms->acpi_dev = create_acpi_ged(vms);
+ vms->generic_error_notifier.notify = virt_generic_error_req;
+ notifier_list_add(&acpi_generic_error_notifiers,
+ &vms->generic_error_notifier);
} else {
create_gpio_devices(vms, VIRT_GPIO, sysmem);
}
diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
index ea2cff05b02f..e14ea0f9d42a 100644
--- a/include/hw/arm/virt.h
+++ b/include/hw/arm/virt.h
@@ -174,6 +174,7 @@ struct VirtMachineState {
DeviceState *gic;
DeviceState *acpi_dev;
Notifier powerdown_notifier;
+ Notifier generic_error_notifier;
PCIBus *bus;
char *oem_id;
char *oem_table_id;
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 13/17] qapi/acpi-hest: add an interface to do generic CPER error injection
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
` (11 preceding siblings ...)
2025-09-23 7:04 ` [PATCH v12 12/17] arm/virt: Wire up a GED error device for ACPI / GHES Mauro Carvalho Chehab
@ 2025-09-23 7:04 ` Mauro Carvalho Chehab
2025-09-23 7:04 ` [PATCH v12 14/17] acpi/generic_event_device.c: enable use_hest_addr for QEMU 10.x Mauro Carvalho Chehab
` (3 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:04 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Ani Sinha, Dongjiu Geng, Eric Blake,
Markus Armbruster, Michael Roth, Paolo Bonzini, Peter Maydell,
Shannon Zhao, linux-kernel
Create a QMP command to be used for generic ACPI APEI hardware error
injection (HEST) via GHESv2, and add support for it for ARM guests.
Error injection uses ACPI_HEST_SRC_ID_QMP source ID to be platform
independent. This is mapped at arch virt bindings, depending on the
types supported by QEMU and by the BIOS. So, on ARM, this is supported
via ACPI_GHES_NOTIFY_GPIO notification type.
This patch was co-authored:
- original ghes logic to inject a simple ARM record by Shiju Jose;
- generic logic to handle block addresses by Jonathan Cameron;
- generic GHESv2 error inject by Mauro Carvalho Chehab;
Co-authored-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Co-authored-by: Shiju Jose <shiju.jose@huawei.com>
Co-authored-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
---
MAINTAINERS | 7 +++++++
hw/acpi/Kconfig | 5 +++++
hw/acpi/ghes.c | 2 +-
hw/acpi/ghes_cper.c | 40 ++++++++++++++++++++++++++++++++++++++++
hw/acpi/ghes_cper_stub.c | 20 ++++++++++++++++++++
hw/acpi/meson.build | 2 ++
hw/arm/virt-acpi-build.c | 1 +
hw/arm/virt.c | 7 +++++++
include/hw/acpi/ghes.h | 1 +
include/hw/arm/virt.h | 1 +
qapi/acpi-hest.json | 36 ++++++++++++++++++++++++++++++++++++
qapi/meson.build | 1 +
qapi/qapi-schema.json | 1 +
13 files changed, 123 insertions(+), 1 deletion(-)
create mode 100644 hw/acpi/ghes_cper.c
create mode 100644 hw/acpi/ghes_cper_stub.c
create mode 100644 qapi/acpi-hest.json
diff --git a/MAINTAINERS b/MAINTAINERS
index 70eb0241d36c..36c13f25e516 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2166,6 +2166,13 @@ 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@kernel.org>
+S: Maintained
+F: hw/arm/ghes_cper.c
+F: hw/acpi/ghes_cper_stub.c
+F: qapi/acpi-hest.json
+
ppc4xx
L: qemu-ppc@nongnu.org
S: Orphan
diff --git a/hw/acpi/Kconfig b/hw/acpi/Kconfig
index 1d4e9f0845c0..daabbe6cd11e 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.c b/hw/acpi/ghes.c
index d666f1b10b5f..06555905cebb 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -553,7 +553,7 @@ void ghes_record_cper_errors(AcpiGhesState *ags, const void *cper, size_t len,
/* Write the generic error data entry into guest memory */
cpu_physical_memory_write(cper_addr, cper, len);
- notifier_list_notify(&acpi_generic_error_notifiers, NULL);
+ notifier_list_notify(&acpi_generic_error_notifiers, &source_id);
}
int acpi_ghes_memory_errors(AcpiGhesState *ags, uint16_t source_id,
diff --git a/hw/acpi/ghes_cper.c b/hw/acpi/ghes_cper.c
new file mode 100644
index 000000000000..31cb2ffabeb4
--- /dev/null
+++ b/hw/acpi/ghes_cper.c
@@ -0,0 +1,40 @@
+/*
+ * CPER payload parser for error injection
+ *
+ * Copyright(C) 2024-2025 Huawei LTD.
+ *
+ * This code is licensed under the GPL version 2 or later. See the
+ * COPYING file in the top-level directory.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+
+#include "qemu/base64.h"
+#include "qemu/error-report.h"
+#include "qemu/uuid.h"
+#include "qapi/qapi-commands-acpi-hest.h"
+#include "hw/acpi/ghes.h"
+
+void qmp_inject_ghes_v2_error(const char *qmp_cper, Error **errp)
+{
+ AcpiGhesState *ags;
+ uint8_t *cper;
+ size_t len;
+
+ ags = acpi_ghes_get_state();
+ if (!ags) {
+ return;
+ }
+
+ cper = qbase64_decode(qmp_cper, -1, &len, errp);
+ if (!cper) {
+ error_setg(errp, "missing GHES CPER payload");
+ return;
+ }
+
+ ghes_record_cper_errors(ags, cper, len, ACPI_HEST_SRC_ID_QMP, errp);
+
+ g_free(cper);
+}
diff --git a/hw/acpi/ghes_cper_stub.c b/hw/acpi/ghes_cper_stub.c
new file mode 100644
index 000000000000..b16be73502db
--- /dev/null
+++ b/hw/acpi/ghes_cper_stub.c
@@ -0,0 +1,20 @@
+/*
+ * Stub interface for CPER payload parser for error injection
+ *
+ * Copyright(C) 2024-2025 Huawei LTD.
+ *
+ * This code is licensed under the GPL version 2 or later. See the
+ * COPYING file in the top-level directory.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qapi/qapi-commands-acpi-hest.h"
+#include "hw/acpi/ghes.h"
+
+void qmp_inject_ghes_v2_error(const char *cper, Error **errp)
+{
+ error_setg(errp, "GHES QMP error inject is not compiled in");
+}
diff --git a/hw/acpi/meson.build b/hw/acpi/meson.build
index 73f02b96912b..56b5d1ec9691 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/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index 2b63008df01d..8bb6b6051548 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -1128,6 +1128,7 @@ static void acpi_align_size(GArray *blob, unsigned align)
static const AcpiNotificationSourceId hest_ghes_notify[] = {
{ ACPI_HEST_SRC_ID_SYNC, ACPI_GHES_NOTIFY_SEA },
+ { ACPI_HEST_SRC_ID_QMP, ACPI_GHES_NOTIFY_GPIO },
};
static const AcpiNotificationSourceId hest_ghes_notify_10_0[] = {
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 6960f6113fef..aad557be1ae3 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -1052,6 +1052,13 @@ static void virt_powerdown_req(Notifier *n, void *opaque)
static void virt_generic_error_req(Notifier *n, void *opaque)
{
+ uint16_t *source_id = opaque;
+
+ /* Currently, only QMP source ID is async */
+ if (*source_id != ACPI_HEST_SRC_ID_QMP) {
+ return;
+ }
+
VirtMachineState *s = container_of(n, VirtMachineState, generic_error_notifier);
acpi_send_event(s->acpi_dev, ACPI_GENERIC_ERROR);
diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
index 390943e46d99..df2ecbf6e4a9 100644
--- a/include/hw/acpi/ghes.h
+++ b/include/hw/acpi/ghes.h
@@ -65,6 +65,7 @@ enum AcpiGhesNotifyType {
*/
enum AcpiGhesSourceID {
ACPI_HEST_SRC_ID_SYNC,
+ ACPI_HEST_SRC_ID_QMP, /* Use it only for QMP injected errors */
};
typedef struct AcpiNotificationSourceId {
diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
index e14ea0f9d42a..04a09af35406 100644
--- a/include/hw/arm/virt.h
+++ b/include/hw/arm/virt.h
@@ -33,6 +33,7 @@
#include "exec/hwaddr.h"
#include "qemu/notify.h"
#include "hw/boards.h"
+#include "hw/acpi/ghes.h"
#include "hw/arm/boot.h"
#include "hw/arm/bsa.h"
#include "hw/block/flash.h"
diff --git a/qapi/acpi-hest.json b/qapi/acpi-hest.json
new file mode 100644
index 000000000000..28af1266a777
--- /dev/null
+++ b/qapi/acpi-hest.json
@@ -0,0 +1,36 @@
+# -*- Mode: Python -*-
+# vim: filetype=python
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+##
+# == GHESv2 CPER Error Injection
+#
+# Defined since ACPI Specification 6.1,
+# section 18.3.2.8 Generic Hardware Error Source version 2. See:
+#
+# https://uefi.org/sites/default/files/resources/ACPI_6_1.pdf
+##
+
+
+##
+# @inject-ghes-v2-error:
+#
+# Inject an error with additional ACPI 6.1 GHESv2 error information
+#
+# @cper: contains a base64 encoded string with raw data for a single
+# CPER record with Generic Error Status Block, Generic Error Data
+# Entry and generic error data payload, as described at
+# https://uefi.org/specs/UEFI/2.10/Apx_N_Common_Platform_Error_Record.html#format
+#
+# Features:
+#
+# @unstable: This command is experimental.
+#
+# Since: 10.2
+##
+{ 'command': 'inject-ghes-v2-error',
+ 'data': {
+ 'cper': 'str'
+ },
+ 'features': [ 'unstable' ]
+}
diff --git a/qapi/meson.build b/qapi/meson.build
index ca6b61a608d0..a46269b5a0c9 100644
--- a/qapi/meson.build
+++ b/qapi/meson.build
@@ -59,6 +59,7 @@ if have_system
qapi_all_modules += [
'accelerator',
'acpi',
+ 'acpi-hest',
'audio',
'cryptodev',
'qdev',
diff --git a/qapi/qapi-schema.json b/qapi/qapi-schema.json
index 82f111ba063c..b93dd68d94c6 100644
--- a/qapi/qapi-schema.json
+++ b/qapi/qapi-schema.json
@@ -68,6 +68,7 @@
{ 'include': 'misc-i386.json' }
{ 'include': 'audio.json' }
{ 'include': 'acpi.json' }
+{ 'include': 'acpi-hest.json' }
{ 'include': 'pci.json' }
{ 'include': 'stats.json' }
{ 'include': 'virtio.json' }
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 14/17] acpi/generic_event_device.c: enable use_hest_addr for QEMU 10.x
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
` (12 preceding siblings ...)
2025-09-23 7:04 ` [PATCH v12 13/17] qapi/acpi-hest: add an interface to do generic CPER error injection Mauro Carvalho Chehab
@ 2025-09-23 7:04 ` Mauro Carvalho Chehab
2025-09-23 7:04 ` [PATCH v12 15/17] tests/acpi: virt: update HEST and DSDT tables Mauro Carvalho Chehab
` (2 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:04 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Ani Sinha, linux-kernel
Now that we have everything in place, enable using HEST GPA
instead of etc/hardware_errors GPA.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
hw/acpi/generic_event_device.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c
index e575b9404be4..e7b773d84d50 100644
--- a/hw/acpi/generic_event_device.c
+++ b/hw/acpi/generic_event_device.c
@@ -363,7 +363,7 @@ static const Property acpi_ged_properties[] = {
DEFINE_PROP_LINK("bus", AcpiGedState, pcihp_state.root,
TYPE_PCI_BUS, PCIBus *),
DEFINE_PROP_BOOL("x-has-hest-addr", AcpiGedState,
- ghes_state.use_hest_addr, false),
+ ghes_state.use_hest_addr, true),
};
static const VMStateDescription vmstate_memhp_state = {
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 15/17] tests/acpi: virt: update HEST and DSDT tables
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
` (13 preceding siblings ...)
2025-09-23 7:04 ` [PATCH v12 14/17] acpi/generic_event_device.c: enable use_hest_addr for QEMU 10.x Mauro Carvalho Chehab
@ 2025-09-23 7:04 ` Mauro Carvalho Chehab
2025-09-23 7:04 ` [PATCH v12 16/17] docs: hest: add new "etc/acpi_table_hest_addr" and update workflow Mauro Carvalho Chehab
2025-09-23 7:04 ` [PATCH v12 17/17] scripts/ghes_inject: add a script to generate GHES error inject Mauro Carvalho Chehab
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:04 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Ani Sinha, linux-kernel
--- /tmp/DSDT_old.dsl 2025-09-05 15:03:18.964968499 +0200
+++ /tmp/DSDT.dsl 2025-09-05 15:03:18.966968470 +0200
@@ -5,13 +5,13 @@
*
* Disassembling to symbolic ASL+ operators
*
- * Disassembly of /tmp/DSDT_old
+ * Disassembly of /tmp/DSDT
*
* Original Table Header:
* Signature "DSDT"
- * Length 0x000014AD (5293)
+ * Length 0x000014D9 (5337)
* Revision 0x02
- * Checksum 0xEA
+ * Checksum 0xA4
* OEM ID "BOCHS "
* OEM Table ID "BXPC "
* OEM Revision 0x00000001 (1)
@@ -1886,6 +1886,11 @@
{
Notify (PWRB, 0x80) // Status Change
}
+
+ If (((Local0 & 0x20) == 0x20))
+ {
+ Notify (GEDD, 0x80) // Status Change
+ }
}
}
@@ -1894,6 +1899,12 @@
Name (_HID, "PNP0C0C" /* Power Button Device */) // _HID: Hardware ID
Name (_UID, Zero) // _UID: Unique ID
}
+
+ Device (GEDD)
+ {
+ Name (_HID, "PNP0C33" /* Error Device */) // _HID: Hardware ID
+ Name (_UID, Zero) // _UID: Unique ID
+ }
}
Scope (\_SB.PCI0)
--- /tmp/DSDT_acpihmatvirt_old.dsl 2025-09-05 15:03:18.979897760 +0200
+++ /tmp/DSDT_acpihmatvirt.dsl 2025-09-05 15:03:18.980968267 +0200
@@ -5,13 +5,13 @@
*
* Disassembling to symbolic ASL+ operators
*
- * Disassembly of /tmp/DSDT_acpihmatvirt_old
+ * Disassembly of /tmp/DSDT_acpihmatvirt
*
* Original Table Header:
* Signature "DSDT"
- * Length 0x00001503 (5379)
+ * Length 0x0000152F (5423)
* Revision 0x02
- * Checksum 0xA6
+ * Checksum 0x6F
* OEM ID "BOCHS "
* OEM Table ID "BXPC "
* OEM Revision 0x00000001 (1)
@@ -1904,6 +1904,11 @@
{
Notify (PWRB, 0x80) // Status Change
}
+
+ If (((Local0 & 0x20) == 0x20))
+ {
+ Notify (GEDD, 0x80) // Status Change
+ }
}
}
@@ -1912,6 +1917,12 @@
Name (_HID, "PNP0C0C" /* Power Button Device */) // _HID: Hardware ID
Name (_UID, Zero) // _UID: Unique ID
}
+
+ Device (GEDD)
+ {
+ Name (_HID, "PNP0C33" /* Error Device */) // _HID: Hardware ID
+ Name (_UID, Zero) // _UID: Unique ID
+ }
}
Scope (\_SB.PCI0)
--- /tmp/DSDT_acpipcihp_old.dsl 2025-09-05 15:03:18.993968078 +0200
+++ /tmp/DSDT_acpipcihp.dsl 2025-09-05 15:03:18.995968049 +0200
@@ -5,13 +5,13 @@
*
* Disassembling to symbolic ASL+ operators
*
- * Disassembly of /tmp/DSDT_acpipcihp_old
+ * Disassembly of /tmp/DSDT_acpipcihp
*
* Original Table Header:
* Signature "DSDT"
- * Length 0x0000183A (6202)
+ * Length 0x00001866 (6246)
* Revision 0x02
- * Checksum 0x98
+ * Checksum 0x70
* OEM ID "BOCHS "
* OEM Table ID "BXPC "
* OEM Revision 0x00000001 (1)
@@ -1893,6 +1893,11 @@
\_SB.PCI0.PCNT ()
Release (\_SB.PCI0.BLCK)
}
+
+ If (((Local0 & 0x20) == 0x20))
+ {
+ Notify (GEDD, 0x80) // Status Change
+ }
}
}
@@ -1901,6 +1906,12 @@
Name (_HID, "PNP0C0C" /* Power Button Device */) // _HID: Hardware ID
Name (_UID, Zero) // _UID: Unique ID
}
+
+ Device (GEDD)
+ {
+ Name (_HID, "PNP0C33" /* Error Device */) // _HID: Hardware ID
+ Name (_UID, Zero) // _UID: Unique ID
+ }
}
Scope (_SB.PCI0)
--- /tmp/DSDT_hpoffacpiindex_old.dsl 2025-09-05 15:03:19.007967875 +0200
+++ /tmp/DSDT_hpoffacpiindex.dsl 2025-09-05 15:03:19.009967846 +0200
@@ -5,13 +5,13 @@
*
* Disassembling to symbolic ASL+ operators
*
- * Disassembly of /tmp/DSDT_hpoffacpiindex_old
+ * Disassembly of /tmp/DSDT_hpoffacpiindex
*
* Original Table Header:
* Signature "DSDT"
- * Length 0x000014E3 (5347)
+ * Length 0x0000150F (5391)
* Revision 0x02
- * Checksum 0x92
+ * Checksum 0x4B
* OEM ID "BOCHS "
* OEM Table ID "BXPC "
* OEM Revision 0x00000001 (1)
@@ -1886,6 +1886,11 @@
{
Notify (PWRB, 0x80) // Status Change
}
+
+ If (((Local0 & 0x20) == 0x20))
+ {
+ Notify (GEDD, 0x80) // Status Change
+ }
}
}
@@ -1894,6 +1899,12 @@
Name (_HID, "PNP0C0C" /* Power Button Device */) // _HID: Hardware ID
Name (_UID, Zero) // _UID: Unique ID
}
+
+ Device (GEDD)
+ {
+ Name (_HID, "PNP0C33" /* Error Device */) // _HID: Hardware ID
+ Name (_UID, Zero) // _UID: Unique ID
+ }
}
Scope (\_SB.PCI0)
--- /tmp/DSDT_memhp_old.dsl 2025-09-05 15:03:19.022215983 +0200
+++ /tmp/DSDT_memhp.dsl 2025-09-05 15:03:19.023967643 +0200
@@ -5,13 +5,13 @@
*
* Disassembling to symbolic ASL+ operators
*
- * Disassembly of /tmp/DSDT_memhp_old
+ * Disassembly of /tmp/DSDT_memhp
*
* Original Table Header:
* Signature "DSDT"
- * Length 0x000019FE (6654)
+ * Length 0x00001A2A (6698)
* Revision 0x02
- * Checksum 0x0B
+ * Checksum 0xD3
* OEM ID "BOCHS "
* OEM Table ID "BXPC "
* OEM Revision 0x00000001 (1)
@@ -1898,6 +1898,11 @@
{
Notify (\_SB.NVDR, 0x80) // Status Change
}
+
+ If (((Local0 & 0x20) == 0x20))
+ {
+ Notify (GEDD, 0x80) // Status Change
+ }
}
}
@@ -2203,6 +2208,12 @@
Name (_HID, "PNP0C0C" /* Power Button Device */) // _HID: Hardware ID
Name (_UID, Zero) // _UID: Unique ID
}
+
+ Device (GEDD)
+ {
+ Name (_HID, "PNP0C33" /* Error Device */) // _HID: Hardware ID
+ Name (_UID, Zero) // _UID: Unique ID
+ }
}
Scope (\_SB.PCI0)
--- /tmp/DSDT_pxb_old.dsl 2025-09-05 15:03:19.036967455 +0200
+++ /tmp/DSDT_pxb.dsl 2025-09-05 15:03:19.039194754 +0200
@@ -5,13 +5,13 @@
*
* Disassembling to symbolic ASL+ operators
*
- * Disassembly of /tmp/DSDT_pxb_old
+ * Disassembly of /tmp/DSDT_pxb
*
* Original Table Header:
* Signature "DSDT"
- * Length 0x00001E58 (7768)
+ * Length 0x00001E84 (7812)
* Revision 0x02
- * Checksum 0x4A
+ * Checksum 0x13
* OEM ID "BOCHS "
* OEM Table ID "BXPC "
* OEM Revision 0x00000001 (1)
@@ -3071,6 +3071,11 @@
{
Notify (PWRB, 0x80) // Status Change
}
+
+ If (((Local0 & 0x20) == 0x20))
+ {
+ Notify (GEDD, 0x80) // Status Change
+ }
}
}
@@ -3079,6 +3084,12 @@
Name (_HID, "PNP0C0C" /* Power Button Device */) // _HID: Hardware ID
Name (_UID, Zero) // _UID: Unique ID
}
+
+ Device (GEDD)
+ {
+ Name (_HID, "PNP0C33" /* Error Device */) // _HID: Hardware ID
+ Name (_UID, Zero) // _UID: Unique ID
+ }
}
Scope (\_SB.PCI0)
--- /tmp/DSDT_topology_old.dsl 2025-09-05 15:03:19.050967252 +0200
+++ /tmp/DSDT_topology.dsl 2025-09-05 15:03:19.052967223 +0200
@@ -5,13 +5,13 @@
*
* Disassembling to symbolic ASL+ operators
*
- * Disassembly of /tmp/DSDT_topology_old
+ * Disassembly of /tmp/DSDT_topology
*
* Original Table Header:
* Signature "DSDT"
- * Length 0x00001577 (5495)
+ * Length 0x000015A3 (5539)
* Revision 0x02
- * Checksum 0xCF
+ * Checksum 0x98
* OEM ID "BOCHS "
* OEM Table ID "BXPC "
* OEM Revision 0x00000001 (1)
@@ -1928,6 +1928,11 @@
{
Notify (PWRB, 0x80) // Status Change
}
+
+ If (((Local0 & 0x20) == 0x20))
+ {
+ Notify (GEDD, 0x80) // Status Change
+ }
}
}
@@ -1936,6 +1941,12 @@
Name (_HID, "PNP0C0C" /* Power Button Device */) // _HID: Hardware ID
Name (_UID, Zero) // _UID: Unique ID
}
+
+ Device (GEDD)
+ {
+ Name (_HID, "PNP0C33" /* Error Device */) // _HID: Hardware ID
+ Name (_UID, Zero) // _UID: Unique ID
+ }
}
Scope (\_SB.PCI0)
--- /tmp/DSDT_viot_old.dsl 2025-09-05 15:03:19.064967049 +0200
+++ /tmp/DSDT_viot.dsl 2025-09-05 15:03:19.067236085 +0200
@@ -5,13 +5,13 @@
*
* Disassembling to symbolic ASL+ operators
*
- * Disassembly of /tmp/DSDT_viot_old
+ * Disassembly of /tmp/DSDT_viot
*
* Original Table Header:
* Signature "DSDT"
- * Length 0x000014BE (5310)
+ * Length 0x000014EA (5354)
* Revision 0x02
- * Checksum 0x8C
+ * Checksum 0x46
* OEM ID "BOCHS "
* OEM Table ID "BXPC "
* OEM Revision 0x00000001 (1)
@@ -1886,6 +1886,11 @@
{
Notify (PWRB, 0x80) // Status Change
}
+
+ If (((Local0 & 0x20) == 0x20))
+ {
+ Notify (GEDD, 0x80) // Status Change
+ }
}
}
@@ -1894,6 +1899,12 @@
Name (_HID, "PNP0C0C" /* Power Button Device */) // _HID: Hardware ID
Name (_UID, Zero) // _UID: Unique ID
}
+
+ Device (GEDD)
+ {
+ Name (_HID, "PNP0C33" /* Error Device */) // _HID: Hardware ID
+ Name (_UID, Zero) // _UID: Unique ID
+ }
}
Scope (\_SB.PCI0)
--- /tmp/HEST_old.dsl 2025-09-05 15:03:19.078653625 +0200
+++ /tmp/HEST.dsl 2025-09-05 15:03:19.079511472 +0200
@@ -3,7 +3,7 @@
* AML/ASL+ Disassembler version 20240322 (64-bit version)
* Copyright (c) 2000 - 2023 Intel Corporation
*
- * Disassembly of /tmp/HEST_old
+ * Disassembly of /tmp/HEST
*
* ACPI Data Table [HEST]
*
@@ -11,16 +11,16 @@
*/
[000h 0000 004h] Signature : "HEST" [Hardware Error Source Table]
-[004h 0004 004h] Table Length : 00000084
+[004h 0004 004h] Table Length : 000000E0
[008h 0008 001h] Revision : 01
-[009h 0009 001h] Checksum : E2
+[009h 0009 001h] Checksum : 6C
[00Ah 0010 006h] Oem ID : "BOCHS "
[010h 0016 008h] Oem Table ID : "BXPC "
[018h 0024 004h] Oem Revision : 00000001
[01Ch 0028 004h] Asl Compiler ID : "BXPC"
[020h 0032 004h] Asl Compiler Revision : 00000001
-[024h 0036 004h] Error Source Count : 00000001
+[024h 0036 004h] Error Source Count : 00000002
[028h 0040 002h] Subtable Type : 000A [Generic Hardware Error Source V2]
[02Ah 0042 002h] Source Id : 0000
@@ -55,19 +55,62 @@
[069h 0105 001h] Bit Width : 40
[06Ah 0106 001h] Bit Offset : 00
[06Bh 0107 001h] Encoded Access Width : 04 [QWord Access:64]
-[06Ch 0108 008h] Address : 0000000043DA0008
+[06Ch 0108 008h] Address : 0000000043DA0010
[074h 0116 008h] Read Ack Preserve : FFFFFFFFFFFFFFFE
[07Ch 0124 008h] Read Ack Write : 0000000000000001
-Raw Table Data: Length 132 (0x84)
+[084h 0132 002h] Subtable Type : 000A [Generic Hardware Error Source V2]
+[086h 0134 002h] Source Id : 0001
+[088h 0136 002h] Related Source Id : FFFF
+[08Ah 0138 001h] Reserved : 00
+[08Bh 0139 001h] Enabled : 01
+[08Ch 0140 004h] Records To Preallocate : 00000001
+[090h 0144 004h] Max Sections Per Record : 00000001
+[094h 0148 004h] Max Raw Data Length : 00000400
+
+[098h 0152 00Ch] Error Status Address : [Generic Address Structure]
+[098h 0152 001h] Space ID : 00 [SystemMemory]
+[099h 0153 001h] Bit Width : 40
+[09Ah 0154 001h] Bit Offset : 00
+[09Bh 0155 001h] Encoded Access Width : 04 [QWord Access:64]
+[09Ch 0156 008h] Address : 0000000043DA0008
+
+[0A4h 0164 01Ch] Notify : [Hardware Error Notification Structure]
+[0A4h 0164 001h] Notify Type : 07 [GPIO]
+[0A5h 0165 001h] Notify Length : 1C
+[0A6h 0166 002h] Configuration Write Enable : 0000
+[0A8h 0168 004h] PollInterval : 00000000
+[0ACh 0172 004h] Vector : 00000000
+[0B0h 0176 004h] Polling Threshold Value : 00000000
+[0B4h 0180 004h] Polling Threshold Window : 00000000
+[0B8h 0184 004h] Error Threshold Value : 00000000
+[0BCh 0188 004h] Error Threshold Window : 00000000
+
+[0C0h 0192 004h] Error Status Block Length : 00000400
+[0C4h 0196 00Ch] Read Ack Register : [Generic Address Structure]
+[0C4h 0196 001h] Space ID : 00 [SystemMemory]
+[0C5h 0197 001h] Bit Width : 40
+[0C6h 0198 001h] Bit Offset : 00
+[0C7h 0199 001h] Encoded Access Width : 04 [QWord Access:64]
+[0C8h 0200 008h] Address : 0000000043DA0018
- 0000: 48 45 53 54 84 00 00 00 01 E2 42 4F 43 48 53 20 // HEST......BOCHS
+[0D0h 0208 008h] Read Ack Preserve : FFFFFFFFFFFFFFFE
+[0D8h 0216 008h] Read Ack Write : 0000000000000001
+
+Raw Table Data: Length 224 (0xE0)
+
+ 0000: 48 45 53 54 E0 00 00 00 01 6C 42 4F 43 48 53 20 // HEST.....lBOCHS
0010: 42 58 50 43 20 20 20 20 01 00 00 00 42 58 50 43 // BXPC ....BXPC
- 0020: 01 00 00 00 01 00 00 00 0A 00 00 00 FF FF 00 01 // ................
+ 0020: 01 00 00 00 02 00 00 00 0A 00 00 00 FF FF 00 01 // ................
0030: 01 00 00 00 01 00 00 00 00 04 00 00 00 40 00 04 // .............@..
0040: 00 00 DA 43 00 00 00 00 08 1C 00 00 00 00 00 00 // ...C............
0050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
- 0060: 00 00 00 00 00 04 00 00 00 40 00 04 08 00 DA 43 // .........@.....C
+ 0060: 00 00 00 00 00 04 00 00 00 40 00 04 10 00 DA 43 // .........@.....C
0070: 00 00 00 00 FE FF FF FF FF FF FF FF 01 00 00 00 // ................
- 0080: 00 00 00 00 // ....
+ 0080: 00 00 00 00 0A 00 01 00 FF FF 00 01 01 00 00 00 // ................
+ 0090: 01 00 00 00 00 04 00 00 00 40 00 04 08 00 DA 43 // .........@.....C
+ 00A0: 00 00 00 00 07 1C 00 00 00 00 00 00 00 00 00 00 // ................
+ 00B0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
+ 00C0: 00 04 00 00 00 40 00 04 18 00 DA 43 00 00 00 00 // .....@.....C....
+ 00D0: FE FF FF FF FF FF FF FF 01 00 00 00 00 00 00 00 // ................
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>
---
tests/data/acpi/aarch64/virt/DSDT | Bin 5293 -> 5337 bytes
.../data/acpi/aarch64/virt/DSDT.acpihmatvirt | Bin 5379 -> 5423 bytes
tests/data/acpi/aarch64/virt/DSDT.acpipcihp | Bin 6202 -> 6246 bytes
.../acpi/aarch64/virt/DSDT.hpoffacpiindex | Bin 5347 -> 5391 bytes
tests/data/acpi/aarch64/virt/DSDT.memhp | Bin 6654 -> 6698 bytes
tests/data/acpi/aarch64/virt/DSDT.pxb | Bin 7768 -> 7812 bytes
tests/data/acpi/aarch64/virt/DSDT.topology | Bin 5495 -> 5539 bytes
tests/data/acpi/aarch64/virt/DSDT.viot | Bin 5310 -> 5354 bytes
tests/data/acpi/aarch64/virt/HEST | Bin 132 -> 224 bytes
tests/qtest/bios-tables-test-allowed-diff.h | 9 ---------
10 files changed, 9 deletions(-)
diff --git a/tests/data/acpi/aarch64/virt/DSDT b/tests/data/acpi/aarch64/virt/DSDT
index 18d97e8f22979411a528705c0e314acb424bbfa5..38f01adb61e6e4704821cee5e397888bb6b7e46d 100644
GIT binary patch
delta 83
zcmZ3hc~g_iCD<k8rU(NA(~^l?(oDTh8`X=1nVdN$&lV15)SLWXScZRrz~t%#E(HcI
lg*JCr7njMLBC;aUO_CrsN4$rp3vYm5fPu5I@nm_CJ^<pE7PJ5W
delta 46
zcmcbqxmJ_QCD<iotq21H)2oSG(oBsG8`X=1nVi@s&lV15l%4!uSZ1<}i1g$jk#+z^
C-wmMv
diff --git a/tests/data/acpi/aarch64/virt/DSDT.acpihmatvirt b/tests/data/acpi/aarch64/virt/DSDT.acpihmatvirt
index 2cef095bcc1bb404f8cd9ec77a879ed81c191875..37a9af713b94a3fd34907dc86c40aaa79e93239c 100644
GIT binary patch
delta 106
zcmZqHTCc_B66_M9FUr8cls}P6nyJ}iqxuP9CTEVxABBT;^x|E^LO2UtgI#?R76?qP
zPT*o<;9_bE2oG}NYJdnRFmNffxx2c!OpX_k6^U+=1hF~dJv?1_1N;IEoQ;hqmx}ZO
E01$>96aWAK
delta 68
zcmZ3l)vU$k66_MfEXu&Zv}_`mG*i3lM)ecIOit{RKMDs+%f`Egg>V+Q2D|zsED)Gn
YoxsJ!z{S)S5FX?-xj;mA@(Pi50D|okbpQYW
diff --git a/tests/data/acpi/aarch64/virt/DSDT.acpipcihp b/tests/data/acpi/aarch64/virt/DSDT.acpipcihp
index 8d55a877a40cb4c4dffdc70378204e12d2261a75..04427e2d8eb8d2db0a7ae3dbe546d9072406d09b 100644
GIT binary patch
delta 87
zcmdmG@XUbACD<h-O@e`esbC_PG*h?RM)e|LCP$vhvxS41eAp&`5RMdFATYT)flGmb
pOQFr()y0LYVX~))v`BQ5B#6fm@8Rjf8{ijU;B0KXIacH@GXO1n7#aWo
delta 48
zcmaE6u*-nUCD<jzN`irbX~sk@X{LVXjp{|hOb*<WXA1{2d9zObARIY4N<@0|1d(gZ
E098B=djJ3c
diff --git a/tests/data/acpi/aarch64/virt/DSDT.hpoffacpiindex b/tests/data/acpi/aarch64/virt/DSDT.hpoffacpiindex
index 970d43f68bca060361105f70dbb00b3a25646db4..43ab60496e5a06706d4626d9e7b58b2d7e809e75 100644
GIT binary patch
delta 83
zcmaE?*{{Xr66_MfFUr8c<UNr~nyJ@mqk54rlQYNU*}}n$dXwJ^%kVD{m|UH}rNF?Y
l(B|&y;xd_2L{=oaNfN~7i1+Yx;SKN$FmN_Do-8kN1OSU26}12W
delta 46
zcmeCzdaTLi66_N4ScHLrY0^Y4X{JVpjp{|hOit{RXA1{2%1(YSEHha~M0#?N$X)<I
C3=N_H
diff --git a/tests/data/acpi/aarch64/virt/DSDT.memhp b/tests/data/acpi/aarch64/virt/DSDT.memhp
index 372ca3d7fb1e2927c7c12f97eec406d597f294ab..3c391674446167bc9c79fd5dcb1c37e80cc7bbae 100644
GIT binary patch
delta 85
zcmexoyvl^jCD<iIONxPk>GDJ_X{NsE8`X=1nVh&M&lV15@@1X;LD-9bfxzVI1TF;z
nE`>ICR~MJf79#enBGFBfAPz^oho=i~fM0-tv$65y0?9rA9#a?T
delta 48
zcmZ2w^3RydCD<k8pCkhV6Zb?eX{M&B8`X=1nH;$$&lV15@?n|$LD*}vw}>t4<i(Qh
E0BCy-)&Kwi
diff --git a/tests/data/acpi/aarch64/virt/DSDT.pxb b/tests/data/acpi/aarch64/virt/DSDT.pxb
index c2779882494e16920787b8ab7b4cb3c3b70f224b..71c632cedcca63a77a4cdde53d9bc392102687b6 100644
GIT binary patch
delta 107
zcmca%(_+iz66_MvBFDhMBs`HznyKsdM)m(POwJsWHDrSs^(NQI$~Y_#m|UH}rNF?Y
z(B|&y;=<Js-6R<h9^}Lk@8Rjf8{ijU;B4T`z!4wn>B11*BneW3BxP(od5!EE06qd8
AQ~&?~
delta 46
zcmZp%y<x-U66_KZA;-YL<Ta5?nyK%`M)m(POit{RHDrSsWhd9j%1mA<D?RzX>{0+f
CX%1!p
diff --git a/tests/data/acpi/aarch64/virt/DSDT.topology b/tests/data/acpi/aarch64/virt/DSDT.topology
index ebbeedc1ed30d811315c350f4cb42f8aa265af73..9f22cd3dc81efe3ebcb8caf913842a8dea910627 100644
GIT binary patch
delta 107
zcmeyawOE_WCD<iou_yxr(~OB+(oF6C8`W(@n4CE#r-}qK>P_A$BIB??U~+W=mjVNq
zLYup*iwjpnbdzL2c#soEyoaX?Z-8HbfwO@#14n$Qrwc=LlO#wDl9aLW<d-6S04<Rn
AEdT%j
delta 63
zcmZ3i{auU8CD<jTT$F)<>HI`4X{K(Ujp{ZcOit{RQ$>OqWhd_xkr9b*k_-qBa^i^h
T@O0q~@Cz_-HgKLSD%uACG~E#{
diff --git a/tests/data/acpi/aarch64/virt/DSDT.viot b/tests/data/acpi/aarch64/virt/DSDT.viot
index b897d667971500da4732000091a6f0828d05d89e..dd3775a0762ae1a5ddb89dd656d81eee581dccb6 100644
GIT binary patch
delta 83
zcmdm|`AU<^CD<k8l?Vd^liNftX{KJMjp{|hOwJsWXA1{2>P>zxEW^J*U~+W=mjVNq
lLYup*i_2tA5m}MwCP@&RBi_T)g*U)2z`)tqc(T06d;r-X7McJ6
delta 46
zcmaE*xlfbJCD<iop9lj3Q_n;$X{JVpjp{|hOit{RXA1{2%1(YSEHha~M0#?N$P55O
CpAClq
diff --git a/tests/data/acpi/aarch64/virt/HEST b/tests/data/acpi/aarch64/virt/HEST
index 4c5d8c5b5da5b3241f93cd0839e94272bf6b1486..674272922db7d48f7821aa7c83ec76bb3b556d2a 100644
GIT binary patch
delta 68
zcmZo+e89-%;TjzBfPsO5F=rx|6eH6_Rd+^#iMisuTnvm1|Nk>EGJ@nLCJHmL%S;Ru
WnV7)J#lXPAz`)?Zz#=g*R~!HcF%5eF
delta 29
lcmaFB*uu!=;Tjy$!oa}5_-G=R6eHtARriT=I3|_|004Ge2nqlI
diff --git a/tests/qtest/bios-tables-test-allowed-diff.h b/tests/qtest/bios-tables-test-allowed-diff.h
index 45f256946751..dfb8523c8bf4 100644
--- a/tests/qtest/bios-tables-test-allowed-diff.h
+++ b/tests/qtest/bios-tables-test-allowed-diff.h
@@ -1,10 +1 @@
/* List of comma-separated changed AML files to ignore */
-"tests/data/acpi/aarch64/virt/HEST",
-"tests/data/acpi/aarch64/virt/DSDT",
-"tests/data/acpi/aarch64/virt/DSDT.acpihmatvirt",
-"tests/data/acpi/aarch64/virt/DSDT.acpipcihp",
-"tests/data/acpi/aarch64/virt/DSDT.hpoffacpiindex",
-"tests/data/acpi/aarch64/virt/DSDT.memhp",
-"tests/data/acpi/aarch64/virt/DSDT.pxb",
-"tests/data/acpi/aarch64/virt/DSDT.topology",
-"tests/data/acpi/aarch64/virt/DSDT.viot",
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 16/17] docs: hest: add new "etc/acpi_table_hest_addr" and update workflow
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
` (14 preceding siblings ...)
2025-09-23 7:04 ` [PATCH v12 15/17] tests/acpi: virt: update HEST and DSDT tables Mauro Carvalho Chehab
@ 2025-09-23 7:04 ` Mauro Carvalho Chehab
2025-09-23 7:04 ` [PATCH v12 17/17] scripts/ghes_inject: add a script to generate GHES error inject Mauro Carvalho Chehab
16 siblings, 0 replies; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:04 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Dongjiu Geng, linux-kernel
While the HEST layout didn't change, there are some internal
changes related to how offsets are calculated and how memory error
events are triggered.
Update specs to reflect such changes.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
docs/specs/acpi_hest_ghes.rst | 28 +++++++++++++++++-----------
1 file changed, 17 insertions(+), 11 deletions(-)
diff --git a/docs/specs/acpi_hest_ghes.rst b/docs/specs/acpi_hest_ghes.rst
index c3e9f8d9a702..aaf7b1ad11a5 100644
--- a/docs/specs/acpi_hest_ghes.rst
+++ b/docs/specs/acpi_hest_ghes.rst
@@ -89,12 +89,21 @@ Design Details
addresses in the "error_block_address" fields with a pointer to the
respective "Error Status Data Block" in the "etc/hardware_errors" blob.
-(8) QEMU defines a third and write-only fw_cfg blob which is called
- "etc/hardware_errors_addr". Through that blob, the firmware can send back
- the guest-side allocation addresses to QEMU. The "etc/hardware_errors_addr"
- blob contains a 8-byte entry. QEMU generates a single WRITE_POINTER command
- for the firmware. The firmware will write back the start address of
- "etc/hardware_errors" blob to the fw_cfg file "etc/hardware_errors_addr".
+(8) QEMU defines a third and write-only fw_cfg blob to store the location
+ where the error block offsets, read ack registers and CPER records are
+ stored.
+
+ Up to QEMU 9.2, the location was at "etc/hardware_errors_addr", and
+ contains a GPA for the beginning of "etc/hardware_errors".
+
+ Newer versions place the location at "etc/acpi_table_hest_addr",
+ pointing to the GPA of the HEST table.
+
+ Using above mentioned 'fw_cfg' files, the firmware can send back the
+ guest-side allocation addresses to QEMU. They contain a 8-byte entry.
+ QEMU generates a single WRITE_POINTER command for the firmware. The
+ firmware will write back the start address of either "etc/hardware_errors"
+ or HEST table at the corresponding fw_cfg file.
(9) When QEMU gets a SIGBUS from the kernel, QEMU writes CPER into corresponding
"Error Status Data Block", guest memory, and then injects platform specific
@@ -105,8 +114,5 @@ Design Details
kernel, on receiving notification, guest APEI driver could read the CPER error
and take appropriate action.
-(11) kvm_arch_on_sigbus_vcpu() uses source_id as index in "etc/hardware_errors" to
- find out "Error Status Data Block" entry corresponding to error source. So supported
- source_id values should be assigned here and not be changed afterwards to make sure
- that guest will write error into expected "Error Status Data Block" even if guest was
- migrated to a newer QEMU.
+(11) kvm_arch_on_sigbus_vcpu() reports RAS errors via a SEA notifications,
+ when a SIGBUS event is triggered.
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v12 17/17] scripts/ghes_inject: add a script to generate GHES error inject
[not found] <cover.1758610789.git.mchehab+huawei@kernel.org>
` (15 preceding siblings ...)
2025-09-23 7:04 ` [PATCH v12 16/17] docs: hest: add new "etc/acpi_table_hest_addr" and update workflow Mauro Carvalho Chehab
@ 2025-09-23 7:04 ` Mauro Carvalho Chehab
2025-10-05 12:22 ` Michael S. Tsirkin
16 siblings, 1 reply; 18+ messages in thread
From: Mauro Carvalho Chehab @ 2025-09-23 7:04 UTC (permalink / raw)
To: Igor Mammedov, Michael S . Tsirkin
Cc: Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Mauro Carvalho Chehab, Cleber Rosa, John Snow, linux-kernel
Using the QMP GHESv2 API requires preparing a raw data array
containing a CPER record.
Add a helper script with subcommands to prepare such data.
Currently, only ARM Processor error CPER record is supported, by
using:
$ ghes_inject.py arm
which produces those warnings on Linux:
[ 705.032426] [Firmware Warn]: GHES: Unhandled processor error type 0x02: cache error
[ 774.866308] {4}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 1
[ 774.866583] {4}[Hardware Error]: event severity: recoverable
[ 774.866738] {4}[Hardware Error]: Error 0, type: recoverable
[ 774.866889] {4}[Hardware Error]: section_type: ARM processor error
[ 774.867048] {4}[Hardware Error]: MIDR: 0x00000000000f0510
[ 774.867189] {4}[Hardware Error]: running state: 0x0
[ 774.867321] {4}[Hardware Error]: Power State Coordination Interface state: 0
[ 774.867511] {4}[Hardware Error]: Error info structure 0:
[ 774.867679] {4}[Hardware Error]: num errors: 2
[ 774.867801] {4}[Hardware Error]: error_type: 0x02: cache error
[ 774.867962] {4}[Hardware Error]: error_info: 0x000000000091000f
[ 774.868124] {4}[Hardware Error]: transaction type: Data Access
[ 774.868280] {4}[Hardware Error]: cache error, operation type: Data write
[ 774.868465] {4}[Hardware Error]: cache level: 2
[ 774.868592] {4}[Hardware Error]: processor context not corrupted
[ 774.868774] [Firmware Warn]: GHES: Unhandled processor error type 0x02: cache error
Such script allows customizing the error data, allowing to change
all fields at the record. Please use:
$ ghes_inject.py arm -h
For more details about its usage.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
MAINTAINERS | 3 +
scripts/arm_processor_error.py | 476 ++++++++++++++++++++++
scripts/ghes_inject.py | 51 +++
scripts/qmp_helper.py | 703 +++++++++++++++++++++++++++++++++
4 files changed, 1233 insertions(+)
create mode 100644 scripts/arm_processor_error.py
create mode 100755 scripts/ghes_inject.py
create mode 100755 scripts/qmp_helper.py
diff --git a/MAINTAINERS b/MAINTAINERS
index 36c13f25e516..0117e031a6e3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2172,6 +2172,9 @@ S: Maintained
F: hw/arm/ghes_cper.c
F: hw/acpi/ghes_cper_stub.c
F: qapi/acpi-hest.json
+F: scripts/ghes_inject.py
+F: scripts/arm_processor_error.py
+F: scripts/qmp_helper.py
ppc4xx
L: qemu-ppc@nongnu.org
diff --git a/scripts/arm_processor_error.py b/scripts/arm_processor_error.py
new file mode 100644
index 000000000000..73d069f070d4
--- /dev/null
+++ b/scripts/arm_processor_error.py
@@ -0,0 +1,476 @@
+#!/usr/bin/env python3
+#
+# pylint: disable=C0301,C0114,R0903,R0912,R0913,R0914,R0915,W0511
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2024-2025 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
+
+# TODO: current implementation has dummy defaults.
+#
+# For a better implementation, a QMP addition/call is needed to
+# retrieve some data for ARM Processor Error injection:
+#
+# - ARM registers: power_state, mpidr.
+
+"""
+Generate an ARM processor error CPER, compatible with
+UEFI 2.9A Errata.
+
+Injecting such errors can be done using:
+
+ $ ./scripts/ghes_inject.py arm
+ Error injected.
+
+Produces a simple CPER register, as detected on a Linux guest:
+
+[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 1
+[Hardware Error]: event severity: recoverable
+[Hardware Error]: Error 0, type: recoverable
+[Hardware Error]: section_type: ARM processor error
+[Hardware Error]: MIDR: 0x0000000000000000
+[Hardware Error]: running state: 0x0
+[Hardware Error]: Power State Coordination Interface state: 0
+[Hardware Error]: Error info structure 0:
+[Hardware Error]: num errors: 2
+[Hardware Error]: error_type: 0x02: cache error
+[Hardware Error]: error_info: 0x000000000091000f
+[Hardware Error]: transaction type: Data Access
+[Hardware Error]: cache error, operation type: Data write
+[Hardware Error]: cache level: 2
+[Hardware Error]: processor context not corrupted
+[Firmware Warn]: GHES: Unhandled processor error type 0x02: cache error
+
+The ARM Processor Error message can be customized via command line
+parameters. For instance:
+
+ $ ./scripts/ghes_inject.py arm --mpidr 0x444 --running --affinity 1 \
+ --error-info 12345678 --vendor 0x13,123,4,5,1 --ctx-array 0,1,2,3,4,5 \
+ -t cache tlb bus micro-arch tlb,micro-arch
+ Error injected.
+
+Injects this error, as detected on a Linux guest:
+
+[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 1
+[Hardware Error]: event severity: recoverable
+[Hardware Error]: Error 0, type: recoverable
+[Hardware Error]: section_type: ARM processor error
+[Hardware Error]: MIDR: 0x0000000000000000
+[Hardware Error]: Multiprocessor Affinity Register (MPIDR): 0x0000000000000000
+[Hardware Error]: error affinity level: 0
+[Hardware Error]: running state: 0x1
+[Hardware Error]: Power State Coordination Interface state: 0
+[Hardware Error]: Error info structure 0:
+[Hardware Error]: num errors: 2
+[Hardware Error]: error_type: 0x02: cache error
+[Hardware Error]: error_info: 0x0000000000bc614e
+[Hardware Error]: cache level: 2
+[Hardware Error]: processor context not corrupted
+[Hardware Error]: Error info structure 1:
+[Hardware Error]: num errors: 2
+[Hardware Error]: error_type: 0x04: TLB error
+[Hardware Error]: error_info: 0x000000000054007f
+[Hardware Error]: transaction type: Instruction
+[Hardware Error]: TLB error, operation type: Instruction fetch
+[Hardware Error]: TLB level: 1
+[Hardware Error]: processor context not corrupted
+[Hardware Error]: the error has not been corrected
+[Hardware Error]: PC is imprecise
+[Hardware Error]: Error info structure 2:
+[Hardware Error]: num errors: 2
+[Hardware Error]: error_type: 0x08: bus error
+[Hardware Error]: error_info: 0x00000080d6460fff
+[Hardware Error]: transaction type: Generic
+[Hardware Error]: bus error, operation type: Generic read (type of instruction or data request cannot be determined)
+[Hardware Error]: affinity level at which the bus error occurred: 1
+[Hardware Error]: processor context corrupted
+[Hardware Error]: the error has been corrected
+[Hardware Error]: PC is imprecise
+[Hardware Error]: Program execution can be restarted reliably at the PC associated with the error.
+[Hardware Error]: participation type: Local processor observed
+[Hardware Error]: request timed out
+[Hardware Error]: address space: External Memory Access
+[Hardware Error]: memory access attributes:0x20
+[Hardware Error]: access mode: secure
+[Hardware Error]: Error info structure 3:
+[Hardware Error]: num errors: 2
+[Hardware Error]: error_type: 0x10: micro-architectural error
+[Hardware Error]: error_info: 0x0000000078da03ff
+[Hardware Error]: Error info structure 4:
+[Hardware Error]: num errors: 2
+[Hardware Error]: error_type: 0x14: TLB error|micro-architectural error
+[Hardware Error]: Context info structure 0:
+[Hardware Error]: register context type: AArch64 EL1 context registers
+[Hardware Error]: 00000000: 00000000 00000000
+[Hardware Error]: Vendor specific error info has 5 bytes:
+[Hardware Error]: 00000000: 13 7b 04 05 01 .{...
+[Firmware Warn]: GHES: Unhandled processor error type 0x02: cache error
+[Firmware Warn]: GHES: Unhandled processor error type 0x04: TLB error
+[Firmware Warn]: GHES: Unhandled processor error type 0x08: bus error
+[Firmware Warn]: GHES: Unhandled processor error type 0x10: micro-architectural error
+[Firmware Warn]: GHES: Unhandled processor error type 0x14: TLB error|micro-architectural error
+"""
+
+import argparse
+import re
+
+from qmp_helper import qmp, util, cper_guid
+
+
+class ArmProcessorEinj:
+ """
+ Implements ARM Processor Error injection via GHES
+ """
+
+ DESC = """
+ Generates an ARM processor error CPER, compatible with
+ UEFI 2.9A Errata.
+ """
+
+ ACPI_GHES_ARM_CPER_LENGTH = 40
+ ACPI_GHES_ARM_CPER_PEI_LENGTH = 32
+
+ # Context types
+ CONTEXT_AARCH32_EL1 = 1
+ CONTEXT_AARCH64_EL1 = 5
+ CONTEXT_MISC_REG = 8
+
+ def __init__(self, subparsers):
+ """Initialize the error injection class and add subparser"""
+
+ # Valid choice values
+ self.arm_valid_bits = {
+ "mpidr": util.bit(0),
+ "affinity": util.bit(1),
+ "running": util.bit(2),
+ "vendor": util.bit(3),
+ }
+
+ self.pei_flags = {
+ "first": util.bit(0),
+ "last": util.bit(1),
+ "propagated": util.bit(2),
+ "overflow": util.bit(3),
+ }
+
+ self.pei_error_types = {
+ "cache": util.bit(1),
+ "tlb": util.bit(2),
+ "bus": util.bit(3),
+ "micro-arch": util.bit(4),
+ }
+
+ self.pei_valid_bits = {
+ "multiple-error": util.bit(0),
+ "flags": util.bit(1),
+ "error-info": util.bit(2),
+ "virt-addr": util.bit(3),
+ "phy-addr": util.bit(4),
+ }
+
+ self.data = bytearray()
+
+ parser = subparsers.add_parser("arm", description=self.DESC)
+
+ arm_valid_bits = ",".join(self.arm_valid_bits.keys())
+ flags = ",".join(self.pei_flags.keys())
+ error_types = ",".join(self.pei_error_types.keys())
+ pei_valid_bits = ",".join(self.pei_valid_bits.keys())
+
+ # UEFI N.16 ARM Validation bits
+ g_arm = parser.add_argument_group("ARM processor")
+ g_arm.add_argument("--arm", "--arm-valid",
+ help=f"ARM valid bits: {arm_valid_bits}")
+ g_arm.add_argument("-a", "--affinity", "--level", "--affinity-level",
+ type=lambda x: int(x, 0),
+ help="Affinity level (when multiple levels apply)")
+ g_arm.add_argument("-l", "--mpidr", type=lambda x: int(x, 0),
+ help="Multiprocessor Affinity Register")
+ g_arm.add_argument("-i", "--midr", type=lambda x: int(x, 0),
+ help="Main ID Register")
+ g_arm.add_argument("-r", "--running",
+ action=argparse.BooleanOptionalAction,
+ default=None,
+ help="Indicates if the processor is running or not")
+ g_arm.add_argument("--psci", "--psci-state",
+ type=lambda x: int(x, 0),
+ help="Power State Coordination Interface - PSCI state")
+
+ # TODO: Add vendor-specific support
+
+ # UEFI N.17 bitmaps (type and flags)
+ g_pei = parser.add_argument_group("ARM Processor Error Info (PEI)")
+ g_pei.add_argument("-t", "--type", nargs="+",
+ help=f"one or more error types: {error_types}")
+ g_pei.add_argument("-f", "--flags", nargs="*",
+ help=f"zero or more error flags: {flags}")
+ g_pei.add_argument("-V", "--pei-valid", "--error-valid", nargs="*",
+ help=f"zero or more PEI valid bits: {pei_valid_bits}")
+
+ # UEFI N.17 Integer values
+ g_pei.add_argument("-m", "--multiple-error", nargs="+",
+ help="Number of errors: 0: Single error, 1: Multiple errors, 2-65535: Error count if known")
+ g_pei.add_argument("-e", "--error-info", nargs="+",
+ help="Error information (UEFI 2.10 tables N.18 to N.20)")
+ g_pei.add_argument("-p", "--physical-address", nargs="+",
+ help="Physical address")
+ g_pei.add_argument("-v", "--virtual-address", nargs="+",
+ help="Virtual address")
+
+ # UEFI N.21 Context
+ g_ctx = parser.add_argument_group("Processor Context")
+ g_ctx.add_argument("--ctx-type", "--context-type", nargs="*",
+ help="Type of the context (0=ARM32 GPR, 5=ARM64 EL1, other values supported)")
+ g_ctx.add_argument("--ctx-size", "--context-size", nargs="*",
+ help="Minimal size of the context")
+ g_ctx.add_argument("--ctx-array", "--context-array", nargs="*",
+ help="Comma-separated arrays for each context")
+
+ # Vendor-specific data
+ g_vendor = parser.add_argument_group("Vendor-specific data")
+ g_vendor.add_argument("--vendor", "--vendor-specific", nargs="+",
+ help="Vendor-specific byte arrays of data")
+
+ # Add arguments for Generic Error Data
+ qmp.argparse(parser)
+
+ parser.set_defaults(func=self.send_cper)
+
+ def send_cper(self, args):
+ """Parse subcommand arguments and send a CPER via QMP"""
+
+ qmp_cmd = qmp(args.host, args.port, args.debug)
+
+ # Handle Generic Error Data arguments if any
+ qmp_cmd.set_args(args)
+
+ is_cpu_type = re.compile(r"^([\w+]+\-)?arm\-cpu$")
+ cpus = qmp_cmd.search_qom("/machine/unattached/device",
+ "type", is_cpu_type)
+
+ cper = {}
+ pei = {}
+ ctx = {}
+ vendor = {}
+
+ arg = vars(args)
+
+ # Handle global parameters
+ if args.arm:
+ arm_valid_init = False
+ cper["valid"] = util.get_choice(name="valid",
+ value=args.arm,
+ choices=self.arm_valid_bits,
+ suffixes=["-error", "-err"])
+ else:
+ cper["valid"] = 0
+ arm_valid_init = True
+
+ if "running" in arg:
+ if args.running:
+ cper["running-state"] = util.bit(0)
+ else:
+ cper["running-state"] = 0
+ else:
+ cper["running-state"] = 0
+
+ if arm_valid_init:
+ if args.affinity:
+ cper["valid"] |= self.arm_valid_bits["affinity"]
+
+ if args.mpidr:
+ cper["valid"] |= self.arm_valid_bits["mpidr"]
+
+ if "running-state" in cper:
+ cper["valid"] |= self.arm_valid_bits["running"]
+
+ if args.psci:
+ cper["valid"] |= self.arm_valid_bits["running"]
+
+ # Handle PEI
+ if not args.type:
+ args.type = ["cache-error"]
+
+ util.get_mult_choices(
+ pei,
+ name="valid",
+ values=args.pei_valid,
+ choices=self.pei_valid_bits,
+ suffixes=["-valid", "--addr"],
+ )
+ util.get_mult_choices(
+ pei,
+ name="type",
+ values=args.type,
+ choices=self.pei_error_types,
+ suffixes=["-error", "-err"],
+ )
+ util.get_mult_choices(
+ pei,
+ name="flags",
+ values=args.flags,
+ choices=self.pei_flags,
+ suffixes=["-error", "-cap"],
+ )
+ util.get_mult_int(pei, "error-info", args.error_info)
+ util.get_mult_int(pei, "multiple-error", args.multiple_error)
+ util.get_mult_int(pei, "phy-addr", args.physical_address)
+ util.get_mult_int(pei, "virt-addr", args.virtual_address)
+
+ # Handle context
+ util.get_mult_int(ctx, "type", args.ctx_type, allow_zero=True)
+ util.get_mult_int(ctx, "minimal-size", args.ctx_size, allow_zero=True)
+ util.get_mult_array(ctx, "register", args.ctx_array, allow_zero=True)
+
+ util.get_mult_array(vendor, "bytes", args.vendor, max_val=255)
+
+ # Store PEI
+ pei_data = bytearray()
+ default_flags = self.pei_flags["first"]
+ default_flags |= self.pei_flags["last"]
+
+ error_info_num = 0
+
+ for i, p in pei.items(): # pylint: disable=W0612
+ error_info_num += 1
+
+ # UEFI 2.10 doesn't define how to encode error information
+ # when multiple types are raised. So, provide a default only
+ # if a single type is there
+ if "error-info" not in p:
+ if p["type"] == util.bit(1):
+ p["error-info"] = 0x0091000F
+ if p["type"] == util.bit(2):
+ p["error-info"] = 0x0054007F
+ if p["type"] == util.bit(3):
+ p["error-info"] = 0x80D6460FFF
+ if p["type"] == util.bit(4):
+ p["error-info"] = 0x78DA03FF
+
+ if "valid" not in p:
+ p["valid"] = 0
+ if "multiple-error" in p:
+ p["valid"] |= self.pei_valid_bits["multiple-error"]
+
+ if "flags" in p:
+ p["valid"] |= self.pei_valid_bits["flags"]
+
+ if "error-info" in p:
+ p["valid"] |= self.pei_valid_bits["error-info"]
+
+ if "phy-addr" in p:
+ p["valid"] |= self.pei_valid_bits["phy-addr"]
+
+ if "virt-addr" in p:
+ p["valid"] |= self.pei_valid_bits["virt-addr"]
+
+ # Version
+ util.data_add(pei_data, 0, 1)
+
+ util.data_add(pei_data,
+ self.ACPI_GHES_ARM_CPER_PEI_LENGTH, 1)
+
+ util.data_add(pei_data, p["valid"], 2)
+ util.data_add(pei_data, p["type"], 1)
+ util.data_add(pei_data, p.get("multiple-error", 1), 2)
+ util.data_add(pei_data, p.get("flags", default_flags), 1)
+ util.data_add(pei_data, p.get("error-info", 0), 8)
+ util.data_add(pei_data, p.get("virt-addr", 0xDEADBEEF), 8)
+ util.data_add(pei_data, p.get("phy-addr", 0xABBA0BAD), 8)
+
+ # Store Context
+ ctx_data = bytearray()
+ context_info_num = 0
+
+ if ctx:
+ ret = qmp_cmd.send_cmd("query-target", may_open=True)
+
+ default_ctx = self.CONTEXT_MISC_REG
+
+ if "arch" in ret:
+ if ret["arch"] == "aarch64":
+ default_ctx = self.CONTEXT_AARCH64_EL1
+ elif ret["arch"] == "arm":
+ default_ctx = self.CONTEXT_AARCH32_EL1
+
+ for k in sorted(ctx.keys()):
+ context_info_num += 1
+
+ if "type" not in ctx[k]:
+ ctx[k]["type"] = default_ctx
+
+ if "register" not in ctx[k]:
+ ctx[k]["register"] = []
+
+ reg_size = len(ctx[k]["register"])
+ size = 0
+
+ if "minimal-size" in ctx:
+ size = ctx[k]["minimal-size"]
+
+ size = max(size, reg_size)
+
+ size = (size + 1) % 0xFFFE
+
+ # Version
+ util.data_add(ctx_data, 0, 2)
+
+ util.data_add(ctx_data, ctx[k]["type"], 2)
+
+ util.data_add(ctx_data, 8 * size, 4)
+
+ for r in ctx[k]["register"]:
+ util.data_add(ctx_data, r, 8)
+
+ for i in range(reg_size, size): # pylint: disable=W0612
+ util.data_add(ctx_data, 0, 8)
+
+ # Vendor-specific bytes are not grouped
+ vendor_data = bytearray()
+ if vendor:
+ for k in sorted(vendor.keys()):
+ for b in vendor[k]["bytes"]:
+ util.data_add(vendor_data, b, 1)
+
+ # Encode ARM Processor Error
+ data = bytearray()
+
+ util.data_add(data, cper["valid"], 4)
+
+ util.data_add(data, error_info_num, 2)
+ util.data_add(data, context_info_num, 2)
+
+ # Calculate the length of the CPER data
+ cper_length = self.ACPI_GHES_ARM_CPER_LENGTH
+ cper_length += len(pei_data)
+ cper_length += len(vendor_data)
+ cper_length += len(ctx_data)
+ util.data_add(data, cper_length, 4)
+
+ util.data_add(data, arg.get("affinity-level", 0), 1)
+
+ # Reserved
+ util.data_add(data, 0, 3)
+
+ if "midr-el1" not in arg:
+ if cpus:
+ cmd_arg = {
+ 'path': cpus[0],
+ 'property': "midr"
+ }
+ ret = qmp_cmd.send_cmd("qom-get", cmd_arg, may_open=True)
+ if isinstance(ret, int):
+ arg["midr-el1"] = ret
+
+ util.data_add(data, arg.get("mpidr-el1", 0), 8)
+ util.data_add(data, arg.get("midr-el1", 0), 8)
+ util.data_add(data, cper["running-state"], 4)
+ util.data_add(data, arg.get("psci-state", 0), 4)
+
+ # Add PEI
+ data.extend(pei_data)
+ data.extend(ctx_data)
+ data.extend(vendor_data)
+
+ self.data = data
+
+ qmp_cmd.send_cper(cper_guid.CPER_PROC_ARM, self.data)
diff --git a/scripts/ghes_inject.py b/scripts/ghes_inject.py
new file mode 100755
index 000000000000..9a235201418b
--- /dev/null
+++ b/scripts/ghes_inject.py
@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2024-2025 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
+
+"""
+Handle ACPI GHESv2 error injection logic QEMU QMP interface.
+"""
+
+import argparse
+import sys
+
+from arm_processor_error import ArmProcessorEinj
+
+EINJ_DESC = """
+Handle ACPI GHESv2 error injection logic QEMU QMP interface.
+
+It allows using UEFI BIOS EINJ features to generate GHES records.
+
+It helps testing CPER and GHES drivers at the guest OS and how
+userspace applications at the guest handle them.
+"""
+
+def main():
+ """Main program"""
+
+ # Main parser - handle generic args like QEMU QMP TCP socket options
+ parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter,
+ usage="%(prog)s [options]",
+ description=EINJ_DESC)
+
+ g_options = parser.add_argument_group("QEMU QMP socket options")
+ g_options.add_argument("-H", "--host", default="localhost", type=str,
+ help="host name")
+ g_options.add_argument("-P", "--port", default=4445, type=int,
+ help="TCP port number")
+ g_options.add_argument('-d', '--debug', action='store_true')
+
+ subparsers = parser.add_subparsers()
+
+ ArmProcessorEinj(subparsers)
+
+ args = parser.parse_args()
+ if "func" in args:
+ args.func(args)
+ else:
+ sys.exit(f"Please specify a valid command for {sys.argv[0]}")
+
+if __name__ == "__main__":
+ main()
diff --git a/scripts/qmp_helper.py b/scripts/qmp_helper.py
new file mode 100755
index 000000000000..c1e7e0fd80ce
--- /dev/null
+++ b/scripts/qmp_helper.py
@@ -0,0 +1,703 @@
+#!/usr/bin/env python3
+#
+# pylint: disable=C0103,E0213,E1135,E1136,E1137,R0902,R0903,R0912,R0913,R0917
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2024-2025 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
+
+"""
+Helper classes to be used by ghes_inject command classes.
+"""
+
+import json
+import sys
+
+from datetime import datetime
+from os import path as os_path
+
+try:
+ qemu_dir = os_path.abspath(os_path.dirname(os_path.dirname(__file__)))
+ sys.path.append(os_path.join(qemu_dir, 'python'))
+
+ from qemu.qmp.legacy import QEMUMonitorProtocol
+
+except ModuleNotFoundError as exc:
+ print(f"Module '{exc.name}' not found.")
+ print("Try export PYTHONPATH=top-qemu-dir/python or run from top-qemu-dir")
+ sys.exit(1)
+
+from base64 import b64encode
+
+class util:
+ """
+ Ancillary functions to deal with bitmaps, parse arguments,
+ generate GUID and encode data on a bytearray buffer.
+ """
+
+ #
+ # Helper routines to handle multiple choice arguments
+ #
+ def get_choice(name, value, choices, suffixes=None, bitmask=True):
+ """Produce a list from multiple choice argument"""
+
+ new_values = 0
+
+ if not value:
+ return new_values
+
+ for val in value.split(","):
+ val = val.lower()
+
+ if suffixes:
+ for suffix in suffixes:
+ val = val.removesuffix(suffix)
+
+ if val not in choices.keys():
+ if suffixes:
+ for suffix in suffixes:
+ if val + suffix in choices.keys():
+ val += suffix
+ break
+
+ if val not in choices.keys():
+ sys.exit(f"Error on '{name}': choice '{val}' is invalid.")
+
+ val = choices[val]
+
+ if bitmask:
+ new_values |= val
+ else:
+ if new_values:
+ sys.exit(f"Error on '{name}': only one value is accepted.")
+
+ new_values = val
+
+ return new_values
+
+ def get_array(name, values, max_val=None):
+ """Add numbered hashes from integer lists into an array"""
+
+ array = []
+
+ for value in values:
+ for val in value.split(","):
+ try:
+ val = int(val, 0)
+ except ValueError:
+ sys.exit(f"Error on '{name}': {val} is not an integer")
+
+ if val < 0:
+ sys.exit(f"Error on '{name}': {val} is not unsigned")
+
+ if max_val and val > max_val:
+ sys.exit(f"Error on '{name}': {val} is too little")
+
+ array.append(val)
+
+ return array
+
+ def get_mult_array(mult, name, values, allow_zero=False, max_val=None):
+ """Add numbered hashes from integer lists"""
+
+ if not allow_zero:
+ if not values:
+ return
+ else:
+ if values is None:
+ return
+
+ if not values:
+ i = 0
+ if i not in mult:
+ mult[i] = {}
+
+ mult[i][name] = []
+ return
+
+ i = 0
+ for value in values:
+ for val in value.split(","):
+ try:
+ val = int(val, 0)
+ except ValueError:
+ sys.exit(f"Error on '{name}': {val} is not an integer")
+
+ if val < 0:
+ sys.exit(f"Error on '{name}': {val} is not unsigned")
+
+ if max_val and val > max_val:
+ sys.exit(f"Error on '{name}': {val} is too little")
+
+ if i not in mult:
+ mult[i] = {}
+
+ if name not in mult[i]:
+ mult[i][name] = []
+
+ mult[i][name].append(val)
+
+ i += 1
+
+
+ def get_mult_choices(mult, name, values, choices,
+ suffixes=None, allow_zero=False):
+ """Add numbered hashes from multiple choice arguments"""
+
+ if not allow_zero:
+ if not values:
+ return
+ else:
+ if values is None:
+ return
+
+ i = 0
+ for val in values:
+ new_values = util.get_choice(name, val, choices, suffixes)
+
+ if i not in mult:
+ mult[i] = {}
+
+ mult[i][name] = new_values
+ i += 1
+
+
+ def get_mult_int(mult, name, values, allow_zero=False):
+ """Add numbered hashes from integer arguments"""
+ if not allow_zero:
+ if not values:
+ return
+ else:
+ if values is None:
+ return
+
+ i = 0
+ for val in values:
+ try:
+ val = int(val, 0)
+ except ValueError:
+ sys.exit(f"Error on '{name}': {val} is not an integer")
+
+ if val < 0:
+ sys.exit(f"Error on '{name}': {val} is not unsigned")
+
+ if i not in mult:
+ mult[i] = {}
+
+ mult[i][name] = val
+ i += 1
+
+
+ #
+ # Data encode helper functions
+ #
+ def bit(b):
+ """Simple macro to define a bit on a bitmask"""
+ return 1 << b
+
+
+ def data_add(data, value, num_bytes):
+ """Adds bytes from value inside a bitarray"""
+
+ data.extend(value.to_bytes(num_bytes, byteorder="little")) # pylint: disable=E1101
+
+ def dump_bytearray(name, data):
+ """Does an hexdump of a byte array, grouping in bytes"""
+
+ print(f"{name} ({len(data)} bytes):")
+
+ for ln_start in range(0, len(data), 16):
+ ln_end = min(ln_start + 16, len(data))
+ print(f" {ln_start:08x} ", end="")
+ for i in range(ln_start, ln_end):
+ print(f"{data[i]:02x} ", end="")
+ for i in range(ln_end, ln_start + 16):
+ print(" ", end="")
+ print(" ", end="")
+ for i in range(ln_start, ln_end):
+ if data[i] >= 32 and data[i] < 127:
+ print(chr(data[i]), end="")
+ else:
+ print(".", end="")
+
+ print()
+ print()
+
+ def time(string):
+ """Handle BCD timestamps used on Generic Error Data Block"""
+
+ time = None
+
+ # Formats to be used when parsing time stamps
+ formats = [
+ "%Y-%m-%d %H:%M:%S",
+ ]
+
+ if string == "now":
+ time = datetime.now()
+
+ if time is None:
+ for fmt in formats:
+ try:
+ time = datetime.strptime(string, fmt)
+ break
+ except ValueError:
+ pass
+
+ if time is None:
+ raise ValueError("Invalid time format")
+
+ return time
+
+class guid:
+ """
+ Simple class to handle GUID fields.
+ """
+
+ def __init__(self, time_low, time_mid, time_high, nodes):
+ """Initialize a GUID value"""
+
+ assert len(nodes) == 8
+
+ self.time_low = time_low
+ self.time_mid = time_mid
+ self.time_high = time_high
+ self.nodes = nodes
+
+ @classmethod
+ def UUID(cls, guid_str):
+ """Initialize a GUID using a string on its standard format"""
+
+ if len(guid_str) != 36:
+ print("Size not 36")
+ raise ValueError('Invalid GUID size')
+
+ # It is easier to parse without separators. So, drop them
+ guid_str = guid_str.replace('-', '')
+
+ if len(guid_str) != 32:
+ print("Size not 32", guid_str, len(guid_str))
+ raise ValueError('Invalid GUID hex size')
+
+ time_low = 0
+ time_mid = 0
+ time_high = 0
+ nodes = []
+
+ for i in reversed(range(16, 32, 2)):
+ h = guid_str[i:i + 2]
+ value = int(h, 16)
+ nodes.insert(0, value)
+
+ time_high = int(guid_str[12:16], 16)
+ time_mid = int(guid_str[8:12], 16)
+ time_low = int(guid_str[0:8], 16)
+
+ return cls(time_low, time_mid, time_high, nodes)
+
+ def __str__(self):
+ """Output a GUID value on its default string representation"""
+
+ clock = self.nodes[0] << 8 | self.nodes[1]
+
+ node = 0
+ for i in range(2, len(self.nodes)):
+ node = node << 8 | self.nodes[i]
+
+ s = f"{self.time_low:08x}-{self.time_mid:04x}-"
+ s += f"{self.time_high:04x}-{clock:04x}-{node:012x}"
+ return s
+
+ def to_bytes(self):
+ """Output a GUID value in bytes"""
+
+ data = bytearray()
+
+ util.data_add(data, self.time_low, 4)
+ util.data_add(data, self.time_mid, 2)
+ util.data_add(data, self.time_high, 2)
+ data.extend(bytearray(self.nodes))
+
+ return data
+
+class qmp:
+ """
+ Opens a connection and send/receive QMP commands.
+ """
+
+ def send_cmd(self, command, args=None, may_open=False, return_error=True):
+ """Send a command to QMP, optinally opening a connection"""
+
+ if may_open:
+ self._connect()
+ elif not self.connected:
+ return False
+
+ msg = { 'execute': command }
+ if args:
+ msg['arguments'] = args
+
+ try:
+ obj = self.qmp_monitor.cmd_obj(msg)
+ # Can we use some other exception class here?
+ except Exception as e: # pylint: disable=W0718
+ print(f"Command: {command}")
+ print(f"Failed to inject error: {e}.")
+ return None
+
+ if "return" in obj:
+ if isinstance(obj.get("return"), dict):
+ if obj["return"]:
+ return obj["return"]
+ return "OK"
+
+ return obj["return"]
+
+ if isinstance(obj.get("error"), dict):
+ error = obj["error"]
+ if return_error:
+ print(f"Command: {msg}")
+ print(f'{error["class"]}: {error["desc"]}')
+ else:
+ print(json.dumps(obj))
+
+ return None
+
+ def _close(self):
+ """Shutdown and close the socket, if opened"""
+ if not self.connected:
+ return
+
+ self.qmp_monitor.close()
+ self.connected = False
+
+ def _connect(self):
+ """Connect to a QMP TCP/IP port, if not connected yet"""
+
+ if self.connected:
+ return True
+
+ try:
+ self.qmp_monitor.connect(negotiate=True)
+ except ConnectionError:
+ sys.exit(f"Can't connect to QMP host {self.host}:{self.port}")
+
+ self.connected = True
+
+ return True
+
+ BLOCK_STATUS_BITS = {
+ "uncorrectable": util.bit(0),
+ "correctable": util.bit(1),
+ "multi-uncorrectable": util.bit(2),
+ "multi-correctable": util.bit(3),
+ }
+
+ ERROR_SEVERITY = {
+ "recoverable": 0,
+ "fatal": 1,
+ "corrected": 2,
+ "none": 3,
+ }
+
+ VALIDATION_BITS = {
+ "fru-id": util.bit(0),
+ "fru-text": util.bit(1),
+ "timestamp": util.bit(2),
+ }
+
+ GEDB_FLAGS_BITS = {
+ "recovered": util.bit(0),
+ "prev-error": util.bit(1),
+ "simulated": util.bit(2),
+ }
+
+ GENERIC_DATA_SIZE = 72
+
+ def argparse(parser):
+ """Prepare a parser group to query generic error data"""
+
+ block_status_bits = ",".join(qmp.BLOCK_STATUS_BITS.keys())
+ error_severity_enum = ",".join(qmp.ERROR_SEVERITY.keys())
+ validation_bits = ",".join(qmp.VALIDATION_BITS.keys())
+ gedb_flags_bits = ",".join(qmp.GEDB_FLAGS_BITS.keys())
+
+ g_gen = parser.add_argument_group("Generic Error Data") # pylint: disable=E1101
+ g_gen.add_argument("--block-status",
+ help=f"block status bits: {block_status_bits}")
+ g_gen.add_argument("--raw-data", nargs="+",
+ help="Raw data inside the Error Status Block")
+ g_gen.add_argument("--error-severity", "--severity",
+ help=f"error severity: {error_severity_enum}")
+ g_gen.add_argument("--gen-err-valid-bits",
+ "--generic-error-validation-bits",
+ help=f"validation bits: {validation_bits}")
+ g_gen.add_argument("--fru-id", type=guid.UUID,
+ help="GUID representing a physical device")
+ g_gen.add_argument("--fru-text",
+ help="ASCII string identifying the FRU hardware")
+ g_gen.add_argument("--timestamp", type=util.time,
+ help="Time when the error info was collected")
+ g_gen.add_argument("--precise", "--precise-timestamp",
+ action='store_true',
+ help="Marks the timestamp as precise if --timestamp is used")
+ g_gen.add_argument("--gedb-flags",
+ help=f"General Error Data Block flags: {gedb_flags_bits}")
+
+ def set_args(self, args):
+ """Set the arguments optionally defined via self.argparse()"""
+
+ if args.block_status:
+ self.block_status = util.get_choice(name="block-status",
+ value=args.block_status,
+ choices=self.BLOCK_STATUS_BITS,
+ bitmask=False)
+ if args.raw_data:
+ self.raw_data = util.get_array("raw-data", args.raw_data,
+ max_val=255)
+ print(self.raw_data)
+
+ if args.error_severity:
+ self.error_severity = util.get_choice(name="error-severity",
+ value=args.error_severity,
+ choices=self.ERROR_SEVERITY,
+ bitmask=False)
+
+ if args.fru_id:
+ self.fru_id = args.fru_id.to_bytes()
+ if not args.gen_err_valid_bits:
+ self.validation_bits |= self.VALIDATION_BITS["fru-id"]
+
+ if args.fru_text:
+ text = bytearray(args.fru_text.encode('ascii'))
+ if len(text) > 20:
+ sys.exit("FRU text is too big to fit")
+
+ self.fru_text = text
+ if not args.gen_err_valid_bits:
+ self.validation_bits |= self.VALIDATION_BITS["fru-text"]
+
+ if args.timestamp:
+ time = args.timestamp
+ century = int(time.year / 100)
+
+ bcd = bytearray()
+ util.data_add(bcd, (time.second // 10) << 4 | (time.second % 10), 1)
+ util.data_add(bcd, (time.minute // 10) << 4 | (time.minute % 10), 1)
+ util.data_add(bcd, (time.hour // 10) << 4 | (time.hour % 10), 1)
+
+ if args.precise:
+ util.data_add(bcd, 1, 1)
+ else:
+ util.data_add(bcd, 0, 1)
+
+ util.data_add(bcd, (time.day // 10) << 4 | (time.day % 10), 1)
+ util.data_add(bcd, (time.month // 10) << 4 | (time.month % 10), 1)
+ util.data_add(bcd,
+ ((time.year % 100) // 10) << 4 | (time.year % 10), 1)
+ util.data_add(bcd, ((century % 100) // 10) << 4 | (century % 10), 1)
+
+ self.timestamp = bcd
+ if not args.gen_err_valid_bits:
+ self.validation_bits |= self.VALIDATION_BITS["timestamp"]
+
+ if args.gen_err_valid_bits:
+ self.validation_bits = util.get_choice(name="validation",
+ value=args.gen_err_valid_bits,
+ choices=self.VALIDATION_BITS)
+
+ def __init__(self, host, port, debug=False):
+ """Initialize variables used by the QMP send logic"""
+
+ self.connected = False
+ self.host = host
+ self.port = port
+ self.debug = debug
+
+ # ACPI 6.1: 18.3.2.7.1 Generic Error Data: Generic Error Status Block
+ self.block_status = self.BLOCK_STATUS_BITS["uncorrectable"]
+ self.raw_data = []
+ self.error_severity = self.ERROR_SEVERITY["recoverable"]
+
+ # ACPI 6.1: 18.3.2.7.1 Generic Error Data: Generic Error Data Entry
+ self.validation_bits = 0
+ self.flags = 0
+ self.fru_id = bytearray(16)
+ self.fru_text = bytearray(20)
+ self.timestamp = bytearray(8)
+
+ self.qmp_monitor = QEMUMonitorProtocol(address=(self.host, self.port))
+
+ #
+ # Socket QMP send command
+ #
+ def send_cper_raw(self, cper_data):
+ """Send a raw CPER data to QEMU though QMP TCP socket"""
+
+ data = b64encode(bytes(cper_data)).decode('ascii')
+
+ cmd_arg = {
+ 'cper': data
+ }
+
+ self._connect()
+
+ if self.send_cmd("inject-ghes-v2-error", cmd_arg):
+ print("Error injected.")
+
+ def send_cper(self, notif_type, payload):
+ """Send commands to QEMU though QMP TCP socket"""
+
+ # Fill CPER record header
+
+ # NOTE: bits 4 to 13 of block status contain the number of
+ # data entries in the data section. This is currently unsupported.
+
+ cper_length = len(payload)
+ data_length = cper_length + len(self.raw_data) + self.GENERIC_DATA_SIZE
+
+ # Generic Error Data Entry
+ gede = bytearray()
+
+ gede.extend(notif_type.to_bytes())
+ util.data_add(gede, self.error_severity, 4)
+ util.data_add(gede, 0x300, 2)
+ util.data_add(gede, self.validation_bits, 1)
+ util.data_add(gede, self.flags, 1)
+ util.data_add(gede, cper_length, 4)
+ gede.extend(self.fru_id)
+ gede.extend(self.fru_text)
+ gede.extend(self.timestamp)
+
+ # Generic Error Status Block
+ gebs = bytearray()
+
+ if self.raw_data:
+ raw_data_offset = len(gebs)
+ else:
+ raw_data_offset = 0
+
+ util.data_add(gebs, self.block_status, 4)
+ util.data_add(gebs, raw_data_offset, 4)
+ util.data_add(gebs, len(self.raw_data), 4)
+ util.data_add(gebs, data_length, 4)
+ util.data_add(gebs, self.error_severity, 4)
+
+ cper_data = bytearray()
+ cper_data.extend(gebs)
+ cper_data.extend(gede)
+ cper_data.extend(bytearray(self.raw_data))
+ cper_data.extend(bytearray(payload))
+
+ if self.debug:
+ print(f"GUID: {notif_type}")
+
+ util.dump_bytearray("Generic Error Status Block", gebs)
+ util.dump_bytearray("Generic Error Data Entry", gede)
+
+ if self.raw_data:
+ util.dump_bytearray("Raw data", bytearray(self.raw_data))
+
+ util.dump_bytearray("Payload", payload)
+
+ self.send_cper_raw(cper_data)
+
+
+ def search_qom(self, path, prop, regex):
+ """
+ Return a list of devices that match path array like:
+
+ /machine/unattached/device
+ /machine/peripheral-anon/device
+ ...
+ """
+
+ found = []
+
+ i = 0
+ while 1:
+ dev = f"{path}[{i}]"
+ args = {
+ 'path': dev,
+ 'property': prop
+ }
+ ret = self.send_cmd("qom-get", args, may_open=True,
+ return_error=False)
+ if not ret:
+ break
+
+ if isinstance(ret, str):
+ if regex.search(ret):
+ found.append(dev)
+
+ i += 1
+ if i > 10000:
+ print("Too many objects returned by qom-get!")
+ break
+
+ return found
+
+class cper_guid:
+ """
+ Contains CPER GUID, as per:
+ https://uefi.org/specs/UEFI/2.10/Apx_N_Common_Platform_Error_Record.html
+ """
+
+ CPER_PROC_GENERIC = guid(0x9876CCAD, 0x47B4, 0x4bdb,
+ [0xB6, 0x5E, 0x16, 0xF1,
+ 0x93, 0xC4, 0xF3, 0xDB])
+
+ CPER_PROC_X86 = guid(0xDC3EA0B0, 0xA144, 0x4797,
+ [0xB9, 0x5B, 0x53, 0xFA,
+ 0x24, 0x2B, 0x6E, 0x1D])
+
+ CPER_PROC_ITANIUM = guid(0xe429faf1, 0x3cb7, 0x11d4,
+ [0xbc, 0xa7, 0x00, 0x80,
+ 0xc7, 0x3c, 0x88, 0x81])
+
+ CPER_PROC_ARM = guid(0xE19E3D16, 0xBC11, 0x11E4,
+ [0x9C, 0xAA, 0xC2, 0x05,
+ 0x1D, 0x5D, 0x46, 0xB0])
+
+ CPER_PLATFORM_MEM = guid(0xA5BC1114, 0x6F64, 0x4EDE,
+ [0xB8, 0x63, 0x3E, 0x83,
+ 0xED, 0x7C, 0x83, 0xB1])
+
+ CPER_PLATFORM_MEM2 = guid(0x61EC04FC, 0x48E6, 0xD813,
+ [0x25, 0xC9, 0x8D, 0xAA,
+ 0x44, 0x75, 0x0B, 0x12])
+
+ CPER_PCIE = guid(0xD995E954, 0xBBC1, 0x430F,
+ [0xAD, 0x91, 0xB4, 0x4D,
+ 0xCB, 0x3C, 0x6F, 0x35])
+
+ CPER_PCI_BUS = guid(0xC5753963, 0x3B84, 0x4095,
+ [0xBF, 0x78, 0xED, 0xDA,
+ 0xD3, 0xF9, 0xC9, 0xDD])
+
+ CPER_PCI_DEV = guid(0xEB5E4685, 0xCA66, 0x4769,
+ [0xB6, 0xA2, 0x26, 0x06,
+ 0x8B, 0x00, 0x13, 0x26])
+
+ CPER_FW_ERROR = guid(0x81212A96, 0x09ED, 0x4996,
+ [0x94, 0x71, 0x8D, 0x72,
+ 0x9C, 0x8E, 0x69, 0xED])
+
+ CPER_DMA_GENERIC = guid(0x5B51FEF7, 0xC79D, 0x4434,
+ [0x8F, 0x1B, 0xAA, 0x62,
+ 0xDE, 0x3E, 0x2C, 0x64])
+
+ CPER_DMA_VT = guid(0x71761D37, 0x32B2, 0x45cd,
+ [0xA7, 0xD0, 0xB0, 0xFE,
+ 0xDD, 0x93, 0xE8, 0xCF])
+
+ CPER_DMA_IOMMU = guid(0x036F84E1, 0x7F37, 0x428c,
+ [0xA7, 0x9E, 0x57, 0x5F,
+ 0xDF, 0xAA, 0x84, 0xEC])
+
+ CPER_CCIX_PER = guid(0x91335EF6, 0xEBFB, 0x4478,
+ [0xA6, 0xA6, 0x88, 0xB7,
+ 0x28, 0xCF, 0x75, 0xD7])
+
+ CPER_CXL_PROT_ERR = guid(0x80B9EFB4, 0x52B5, 0x4DE3,
+ [0xA7, 0x77, 0x68, 0x78,
+ 0x4B, 0x77, 0x10, 0x48])
--
2.51.0
^ permalink raw reply related [flat|nested] 18+ messages in thread* Re: [PATCH v12 17/17] scripts/ghes_inject: add a script to generate GHES error inject
2025-09-23 7:04 ` [PATCH v12 17/17] scripts/ghes_inject: add a script to generate GHES error inject Mauro Carvalho Chehab
@ 2025-10-05 12:22 ` Michael S. Tsirkin
0 siblings, 0 replies; 18+ messages in thread
From: Michael S. Tsirkin @ 2025-10-05 12:22 UTC (permalink / raw)
To: Mauro Carvalho Chehab
Cc: Igor Mammedov, Jonathan Cameron, Shiju Jose, qemu-arm, qemu-devel,
Cleber Rosa, John Snow, linux-kernel
On Tue, Sep 23, 2025 at 09:04:11AM +0200, Mauro Carvalho Chehab wrote:
> + # UEFI N.17 Integer values
> + g_pei.add_argument("-m", "--multiple-error", nargs="+",
> + help="Number of errors: 0: Single error, 1: Multiple errors, 2-65535: Error count if known")
While I'm merging this as is, I ask that you please address these
unreasonably long lines in this patch by a patch on top please.
--
MST
^ permalink raw reply [flat|nested] 18+ messages in thread