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>
---
 hw/acpi/ghes.c         | 5 +++++
 include/hw/acpi/ghes.h | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index 10ed9c0614ff..2b7103a678a1 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -402,6 +402,9 @@ void acpi_ghes_add_fw_cfg(AcpiGhesState *ags, FWCfgState *s,
     ags->present = true;
 }
 
+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)
 {
@@ -492,6 +495,8 @@ 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);
+
+    notifier_list_notify(&acpi_generic_error_notifiers, NULL);
 }
 
 int acpi_ghes_memory_errors(int source_id, uint64_t physical_address)
diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
index be53b7c53c91..b1ec9795270f 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
-- 
2.46.0