linux-kernel - [PATCH v10 (RESEND) 10/20] acpi/ghes: add a notifier to notify when error data is ready

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <93416a3f6804f8f4c42b55d379b8efd22e45bc26.1749741085.git.mchehab+huawei@kernel.org>
Date: Thu, 12 Jun 2025 17:17:34 +0200
From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To: Igor Mammedov <imammedo@...hat.com>,
	"Michael S . Tsirkin" <mst@...hat.com>
Cc: Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Shiju Jose <shiju.jose@...wei.com>,
	qemu-arm@...gnu.org,
	qemu-devel@...gnu.org,
	Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
	"Ani Sinha" <anisinha@...hat.com>,
	"Dongjiu Geng" <gengdongjiu1@...il.com>,
	"Paolo Bonzini" <pbonzini@...hat.com>,
	"Peter Maydell" <peter.maydell@...aro.org>,
	Philippe Mathieu-Daudé <philmd@...aro.org>,
	"Shannon Zhao" <shannon.zhaosl@...il.com>,
	"Yanan Wang" <wangyanan55@...wei.com>,
	"Zhao Liu" <zhao1.liu@...el.com>,
	kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v10 (RESEND) 10/20] acpi/ghes: add a notifier to notify when error data is ready

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@...nel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Acked-by: Igor Mammedov <imammedo@...hat.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..0135ac844bcf 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(error_device_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
-- 
2.49.0