Provide a generic interface for error injection via GHESv2.
This patch is 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.came...@huawei.com>
Co-authored-by: Shiju Jose <shiju.j...@huawei.com>
Co-authored-by: Mauro Carvalho Chehab <mchehab+hua...@kernel.org>
Signed-off-by: Jonathan Cameron <jonathan.came...@huawei.com>
Signed-off-by: Shiju Jose <shiju.j...@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+hua...@kernel.org>
---
hw/acpi/ghes.c | 57 +++++++++++++++++++++++++++++++++++++++++++++
hw/acpi/ghes_cper.c | 2 +-
2 files changed, 58 insertions(+), 1 deletion(-)
diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index 7870f51e2a9e..a3ae710dcf81 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -500,6 +500,63 @@ int acpi_ghes_record_errors(enum AcpiGhesNotifyType notify,
NotifierList acpi_generic_error_notifiers =
NOTIFIER_LIST_INITIALIZER(error_device_notifiers);
+void ghes_record_cper_errors(uint8_t *cper, size_t len,
+ enum AcpiGhesNotifyType notify, Error **errp)
+{
+ uint64_t cper_addr, read_ack_start_addr;
+ enum AcpiHestSourceId source;
+ AcpiGedState *acpi_ged_state;
+ AcpiGhesState *ags;
+ uint64_t read_ack;
+
+ if (ghes_notify_to_source_id(notify, &source)) {
+ error_setg(errp,
+ "GHES: Invalid error block/ack address(es) for notify %d",
+ notify);
+ return;
+ }
+
+ acpi_ged_state = ACPI_GED(object_resolve_path_type("", TYPE_ACPI_GED,
+ NULL));
+ g_assert(acpi_ged_state);
+ ags = &acpi_ged_state->ghes_state;
+
+ cper_addr = le64_to_cpu(ags->ghes_addr_le);
+ cper_addr += ACPI_HEST_SRC_ID_COUNT * sizeof(uint64_t);
+ read_ack_start_addr = cper_addr + source * sizeof(uint64_t);
+
+ cper_addr += ACPI_HEST_SRC_ID_COUNT * sizeof(uint64_t);
+ cper_addr += source * ACPI_GHES_MAX_RAW_DATA_LENGTH;
+
+ cpu_physical_memory_read(read_ack_start_addr,
+ &read_ack, sizeof(uint64_t));
+
+ /* zero means OSPM does not acknowledge the error */
+ if (!read_ack) {
+ error_setg(errp,
+ "Last CPER record was not acknowledged yet");
+ read_ack = 1;
+ cpu_physical_memory_write(read_ack_start_addr,
+ &read_ack, sizeof(uint64_t));
+ return;
+ }
+
+ read_ack = cpu_to_le64(0);
+ cpu_physical_memory_write(read_ack_start_addr,
+ &read_ack, sizeof(uint64_t));
+
+ /* Build CPER record */
+
+ if (len > ACPI_GHES_MAX_RAW_DATA_LENGTH) {
+ error_setg(errp, "GHES CPER record is too big: %ld", 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);
+}
+
bool acpi_ghes_present(void)
{
AcpiGedState *acpi_ged_state;
diff --git a/hw/acpi/ghes_cper.c b/hw/acpi/ghes_cper.c
index 92ca84d738de..2328dbff7012 100644
--- a/hw/acpi/ghes_cper.c
+++ b/hw/acpi/ghes_cper.c
@@ -29,5 +29,5 @@ void qmp_ghes_cper(const char *qmp_cper,
return;
}
- /* TODO: call a function at ghes */
+ ghes_record_cper_errors(cper, len, ACPI_GHES_NOTIFY_GPIO, errp);
}
--
2.46.0
