[PATCH v4 05/14] acpi/ghes: add a notifier to notify when error data is ready

Mauro Carvalho Chehab
2025-02-21T14:35:35Z

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>
---
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 4a4ea8f4be90..f2d1cc7369f4 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -514,6 +514,9 @@ 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(error_device_notifiers);
+
void ghes_record_cper_errors(const void *cper, size_t len,
uint16_t source_id, Error **errp)
{
@@ -570,7 +573,7 @@ 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;
+ notifier_list_notify(&acpi_generic_error_notifiers, NULL);
}

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 51c6b6b33327..219aa7ab4fe0 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
--
2.48.1