Add a subsection to migrate the AcpiPciHpState state.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
---
 hw/acpi/generic_event_device.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c
index 7535d07737..95682b79a2 100644
--- a/hw/acpi/generic_event_device.c
+++ b/hw/acpi/generic_event_device.c
@@ -417,6 +417,25 @@ static const VMStateDescription vmstate_ghes_state = {
     }
 };
 
+static bool pcihp_needed(void *opaque)
+{
+    AcpiGedState *s = opaque;
+    return s->pcihp_state.use_acpi_hotplug_bridge;
+}
+
+static const VMStateDescription vmstate_pcihp_state = {
+    .name = "acpi-ged/pcihp",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .needed = pcihp_needed,
+    .fields = (const VMStateField[]) {
+        VMSTATE_PCI_HOTPLUG(pcihp_state,
+                            AcpiGedState,
+                            NULL, NULL),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
 static const VMStateDescription vmstate_acpi_ged = {
     .name = "acpi-ged",
     .version_id = 1,
@@ -429,6 +448,7 @@ static const VMStateDescription vmstate_acpi_ged = {
         &vmstate_memhp_state,
         &vmstate_cpuhp_state,
         &vmstate_ghes_state,
+        &vmstate_pcihp_state,
         NULL
     }
 };
-- 
2.49.0