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hw/arm/virt: Let virt support pci hotplug/unplug GED event

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Set up the IO registers used to communicate between QEMU
and ACPI.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20250714080639.2525563-33-eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Eric Auger
2025-07-15 02:56:40 -04:00
committed by Michael S. Tsirkin
parent cfd4ace6e5
commit 6af97d127e
1 changed files with 13 additions and 0 deletions
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hw/arm/virt.c
+13
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@@ -691,6 +691,7 @@ static inline DeviceState *create_acpi_ged(VirtMachineState *vms)
SysBusDevice *sbdev;
int irq = vms->irqmap[VIRT_ACPI_GED];
uint32_t event = ACPI_GED_PWR_DOWN_EVT;
bool acpi_pcihp;
if (ms->ram_slots) {
event |= ACPI_GED_MEM_HOTPLUG_EVT;
@@ -709,6 +710,18 @@ static inline DeviceState *create_acpi_ged(VirtMachineState *vms)
sysbus_mmio_map_name(sbdev, TYPE_ACPI_GED, vms->memmap[VIRT_ACPI_GED].base);
sysbus_mmio_map_name(sbdev, ACPI_MEMHP_REGION_NAME,
vms->memmap[VIRT_PCDIMM_ACPI].base);
acpi_pcihp = object_property_get_bool(OBJECT(dev),
ACPI_PM_PROP_ACPI_PCIHP_BRIDGE, NULL);
if (acpi_pcihp) {
int pcihp_region_index;
pcihp_region_index = sysbus_mmio_map_name(sbdev, ACPI_PCIHP_REGION_NAME,
vms->memmap[VIRT_ACPI_PCIHP].base);
assert(pcihp_region_index >= 0);
}
sysbus_connect_irq(sbdev, 0, qdev_get_gpio_in(vms->gic, irq));
return dev;