qbus: Make child devices links

Make qbus children show up as link<> properties.  There is no stable
addressing for qbus children so we use an unstable naming convention.

This is okay in QOM though because the composition name is expected to
be what's stable.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>

1 files changed, 6 insertions, 4 deletions

diff --git a/hw/acpi_piix4.c b/hw/acpi_piix4.c
index 0345490..a11c8e7 100644
--- a/hw/acpi_piix4.c
+++ b/hw/acpi_piix4.c
@@ -284,7 +284,7 @@ static const VMStateDescription vmstate_acpi = {
 
 static void acpi_piix_eject_slot(PIIX4PMState *s, unsigned slots)
 {
-    DeviceState *qdev, *next;
+    BusChild *kid, *next;
     BusState *bus = qdev_get_parent_bus(&s->dev.qdev);
     int slot = ffs(slots) - 1;
     bool slot_free = true;
@@ -292,7 +292,8 @@ static void acpi_piix_eject_slot(PIIX4PMState *s, unsigned slots)
     /* Mark request as complete */
     s->pci0_status.down &= ~(1U << slot);
 
-    QTAILQ_FOREACH_SAFE(qdev, &bus->children, sibling, next) {
+    QTAILQ_FOREACH_SAFE(kid, &bus->children, sibling, next) {
+        DeviceState *qdev = kid->child;
         PCIDevice *dev = PCI_DEVICE(qdev);
         PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
         if (PCI_SLOT(dev->devfn) == slot) {
@@ -313,7 +314,7 @@ static void piix4_update_hotplug(PIIX4PMState *s)
 {
     PCIDevice *dev = &s->dev;
     BusState *bus = qdev_get_parent_bus(&dev->qdev);
-    DeviceState *qdev, *next;
+    BusChild *kid, *next;
 
     /* Execute any pending removes during reset */
     while (s->pci0_status.down) {
@@ -323,7 +324,8 @@ static void piix4_update_hotplug(PIIX4PMState *s)
     s->pci0_hotplug_enable = ~0;
     s->pci0_slot_device_present = 0;
 
-    QTAILQ_FOREACH_SAFE(qdev, &bus->children, sibling, next) {
+    QTAILQ_FOREACH_SAFE(kid, &bus->children, sibling, next) {
+        DeviceState *qdev = kid->child;
         PCIDevice *pdev = PCI_DEVICE(qdev);
         PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(pdev);
         int slot = PCI_SLOT(pdev->devfn);