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authorEric Auger <eric.auger@redhat.com>2025-07-14 10:05:16 +0200
committerMichael S. Tsirkin <mst@redhat.com>2025-07-15 02:56:40 -0400
commit6af97d127eb40bd8a3b25db86d3644b25287be51 (patch)
tree735b8c012908c752c0f027d1f77fd2fc94767ff5 /hw/arm/virt.c
parentcfd4ace6e5faf3064defa559e1b5fd674109186f (diff)
downloadfocaccia-qemu-6af97d127eb40bd8a3b25db86d3644b25287be51.tar.gz
focaccia-qemu-6af97d127eb40bd8a3b25db86d3644b25287be51.zip
hw/arm/virt: Let virt support pci hotplug/unplug GED event
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>
Diffstat (limited to 'hw/arm/virt.c')
-rw-r--r--hw/arm/virt.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index f127a668ef..ef6be3660f 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -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;