[Qemu-devel] [PATCH v1 3/7] pcihp: route unplug via the hotplug handler

[David Hildenbrand <david@redhat.com>]

Preparation for multi-stage hotplug handlers.

Signed-off-by: David Hildenbrand <david@redhat.com>
---
 hw/acpi/pcihp.c         | 11 ++++++++++-
 hw/acpi/piix4.c         |  7 +++++--
 include/hw/acpi/pcihp.h |  3 +++
 3 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c
index 647b5e8d82..062f3c9091 100644
--- a/hw/acpi/pcihp.c
+++ b/hw/acpi/pcihp.c
@@ -154,6 +154,7 @@ static bool acpi_pcihp_pc_no_hotplug(AcpiPciHpState *s, PCIDevice *dev)
 
 static void acpi_pcihp_eject_slot(AcpiPciHpState *s, unsigned bsel, unsigned slots)
 {
+    HotplugHandler *hotplug_ctrl;
     BusChild *kid, *next;
     int slot = ctz32(slots);
     PCIBus *bus = acpi_pcihp_find_hotplug_bus(s, bsel);
@@ -171,7 +172,8 @@ static void acpi_pcihp_eject_slot(AcpiPciHpState *s, unsigned bsel, unsigned slo
         PCIDevice *dev = PCI_DEVICE(qdev);
         if (PCI_SLOT(dev->devfn) == slot) {
             if (!acpi_pcihp_pc_no_hotplug(s, dev)) {
-                object_unparent(OBJECT(qdev));
+                hotplug_ctrl = qdev_get_hotplug_handler(qdev);
+                hotplug_handler_unplug(hotplug_ctrl, qdev, &error_abort);
             }
         }
     }
@@ -261,6 +263,13 @@ void acpi_pcihp_device_plug_cb(HotplugHandler *hotplug_dev, AcpiPciHpState *s,
 
 void acpi_pcihp_device_unplug_cb(HotplugHandler *hotplug_dev, AcpiPciHpState *s,
                                  DeviceState *dev, Error **errp)
+{
+    object_unparent(OBJECT(dev));
+}
+
+void acpi_pcihp_device_unplug_request_cb(HotplugHandler *hotplug_dev,
+                                         AcpiPciHpState *s, DeviceState *dev,
+                                         Error **errp)
 {
     PCIDevice *pdev = PCI_DEVICE(dev);
     int slot = PCI_SLOT(pdev->devfn);
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index e611778daf..ba5632becc 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -418,8 +418,8 @@ static void piix4_device_unplug_request_cb(HotplugHandler *hotplug_dev,
         acpi_memory_unplug_request_cb(hotplug_dev, &s->acpi_memory_hotplug,
                                       dev, errp);
     } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
-        acpi_pcihp_device_unplug_cb(hotplug_dev, &s->acpi_pci_hotplug, dev,
-                                    errp);
+        acpi_pcihp_device_unplug_request_cb(hotplug_dev, &s->acpi_pci_hotplug,
+                                            dev, errp);
     } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) &&
                !s->cpu_hotplug_legacy) {
         acpi_cpu_unplug_request_cb(hotplug_dev, &s->cpuhp_state, dev, errp);
@@ -437,6 +437,9 @@ static void piix4_device_unplug_cb(HotplugHandler *hotplug_dev,
     if (s->acpi_memory_hotplug.is_enabled &&
         object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
         acpi_memory_unplug_cb(&s->acpi_memory_hotplug, dev, errp);
+    } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
+        acpi_pcihp_device_unplug_cb(hotplug_dev, &s->acpi_pci_hotplug, dev,
+                                    errp);
     } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) &&
                !s->cpu_hotplug_legacy) {
         acpi_cpu_unplug_cb(&s->cpuhp_state, dev, errp);
diff --git a/include/hw/acpi/pcihp.h b/include/hw/acpi/pcihp.h
index ce31625850..8bc4a4c01d 100644
--- a/include/hw/acpi/pcihp.h
+++ b/include/hw/acpi/pcihp.h
@@ -62,6 +62,9 @@ void acpi_pcihp_device_plug_cb(HotplugHandler *hotplug_dev, AcpiPciHpState *s,
                                DeviceState *dev, Error **errp);
 void acpi_pcihp_device_unplug_cb(HotplugHandler *hotplug_dev, AcpiPciHpState *s,
                                  DeviceState *dev, Error **errp);
+void acpi_pcihp_device_unplug_request_cb(HotplugHandler *hotplug_dev,
+                                         AcpiPciHpState *s, DeviceState *dev,
+                                         Error **errp);
 
 /* Called on reset */
 void acpi_pcihp_reset(AcpiPciHpState *s);
-- 
2.17.2