diff mbox series

[PULL,09/13] spapr: Direct all PCI hotplug to host bridge, rather than P2P bridge

Message ID 20190612054929.21136-10-david@gibson.dropbear.id.au
State New
Headers show
Series [PULL,01/13] spapr_pci: Improve error message | expand

Commit Message

David Gibson June 12, 2019, 5:49 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>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
---
 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;
 }