diff mbox series

[7/8] spapr: Direct all PCI hotplug to host bridge, rather than P2P bridge

Message ID 20190523052918.1129-7-david@gibson.dropbear.id.au (mailing list archive)
State New, archived
Headers show
Series [1/8] spapr: Clean up device node name generation for PCI devices | expand

Commit Message

David Gibson May 23, 2019, 5:29 a.m. UTC 
A P2P bridge will attempt to handle the hotplug with SHPC, which doesn't
work in the PAPR environment.  Instead we want to direct all PCI hotplug
actions to the PAPR specific host bridge which will use the PAPR hotplug
mechanism.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 hw/ppc/spapr.c | 11 +++++++++++
 1 file changed, 11 insertions(+)
diff mbox series

Patch

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 507fd50dd5..6dd8aaac33 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -4094,6 +4094,17 @@  static HotplugHandler *spapr_get_hotplug_handler(MachineState *machine,
         object_dynamic_cast(OBJECT(dev), TYPE_SPAPR_PCI_HOST_BRIDGE)) {
         return HOTPLUG_HANDLER(machine);
     }
+    if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
+        PCIDevice *pcidev = PCI_DEVICE(dev);
+        PCIBus *root = pci_device_root_bus(pcidev);
+        SpaprPhbState *phb =
+            (SpaprPhbState *)object_dynamic_cast(OBJECT(BUS(root)->parent),
+                                                 TYPE_SPAPR_PCI_HOST_BRIDGE);
+
+        if (phb) {
+            return HOTPLUG_HANDLER(phb);
+        }
+    }
     return NULL;
 }