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Message-ID: <9747cd7405841a7f8ce3a535132a6c658aa09cdc.1723793768.git.mchehab+huawei@kernel.org>
Date: Fri, 16 Aug 2024 09:37:34 +0200
From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:
Cc: Jonathan Cameron <Jonathan.Cameron@...wei.com>,
Shiju Jose <shiju.jose@...wei.com>,
Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
"Michael S. Tsirkin" <mst@...hat.com>,
Ani Sinha <anisinha@...hat.com>,
Dongjiu Geng <gengdongjiu1@...il.com>,
Igor Mammedov <imammedo@...hat.com>,
Peter Maydell <peter.maydell@...aro.org>,
Shannon Zhao <shannon.zhaosl@...il.com>,
linux-kernel@...r.kernel.org,
qemu-arm@...gnu.org,
qemu-devel@...gnu.org
Subject: [PATCH v8 02/13] arm/virt: Wire up a GED error device for ACPI / GHES
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@...nel.org>
Co-authored-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Acked-by: Igor Mammedov <imammedo@...hat.com>
---
hw/acpi/ghes.c | 3 +++
hw/arm/virt-acpi-build.c | 1 +
hw/arm/virt.c | 12 +++++++++++-
include/hw/acpi/ghes.h | 3 +++
include/hw/arm/virt.h | 1 +
5 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index e9511d9b8f71..13b105c5d02d 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -444,6 +444,9 @@ int acpi_ghes_record_errors(uint8_t source_id, uint64_t physical_address)
return ret;
}
+NotifierList acpi_generic_error_notifiers =
+ NOTIFIER_LIST_INITIALIZER(error_device_notifiers);
+
bool acpi_ghes_present(void)
{
AcpiGedState *acpi_ged_state;
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index f76fb117adff..1769467d23b2 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -858,6 +858,7 @@ 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 687fe0bb8bc9..22448e5c5b73 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -677,7 +677,7 @@ static inline DeviceState *create_acpi_ged(VirtMachineState *vms)
DeviceState *dev;
MachineState *ms = MACHINE(vms);
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;
if (ms->ram_slots) {
event |= ACPI_GED_MEM_HOTPLUG_EVT;
@@ -1009,6 +1009,13 @@ 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)
{
@@ -2385,6 +2392,9 @@ 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/acpi/ghes.h b/include/hw/acpi/ghes.h
index 674f6958e905..fb80897e7eac 100644
--- a/include/hw/acpi/ghes.h
+++ b/include/hw/acpi/ghes.h
@@ -23,6 +23,9 @@
#define ACPI_GHES_H
#include "hw/acpi/bios-linker-loader.h"
+#include "qemu/notify.h"
+
+extern NotifierList acpi_generic_error_notifiers;
/*
* Values for Hardware Error Notification Type field
diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
index a4d937ed45ac..ad9f6e94dcc5 100644
--- a/include/hw/arm/virt.h
+++ b/include/hw/arm/virt.h
@@ -175,6 +175,7 @@ struct VirtMachineState {
DeviceState *gic;
DeviceState *acpi_dev;
Notifier powerdown_notifier;
+ Notifier generic_error_notifier;
PCIBus *bus;
char *oem_id;
char *oem_table_id;
--
2.46.0
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