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arm/virt: Wire up a GED error device for ACPI / GHES

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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@kernel.org>
Co-authored-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <3237a76b1469d669436399495825348bf34122cd.1758610789.git.mchehab+huawei@kernel.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2025-09-23 09:04:06 +02:00 • committed by Michael S. Tsirkin
parent 79b10b6639
commit d352e33e1f
3 changed files with 13 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

1
hw/arm/virt-acpi-build.c
View file

@ -1066,6 +1066,7 @@ 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

12
hw/arm/virt.c
View file

@ -693,7 +693,7 @@ static inline DeviceState *create_acpi_ged(VirtMachineState *vms)
MachineState *ms = MACHINE(vms);
SysBusDevice *sbdev;
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;
bool acpi_pcihp;
if (ms->ram_slots) {
@ -1050,6 +1050,13 @@ 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)
{
@ -2500,6 +2507,9 @@ 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);
}

1
include/hw/arm/virt.h
View file

@ -174,6 +174,7 @@ struct VirtMachineState {
DeviceState *gic;
DeviceState *acpi_dev;
Notifier powerdown_notifier;
Notifier generic_error_notifier;
PCIBus *bus;
char *oem_id;
char *oem_table_id;