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[30/32] spapr_pci: emit hotplug add/remove events during hotplug

Message ID 1430462510-14195-31-git-send-email-david@gibson.dropbear.id.au
State New
Headers show

Commit Message

David Gibson May 1, 2015, 6:41 a.m. UTC 
From: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>

This uses extension of existing EPOW interrupt/event mechanism
to notify userspace tools like librtas/drmgr to handle
in-guest configuration/cleanup operations in response to
device_add/device_del.

Userspace tools that don't implement this extension will need
to be run manually in response/advance of device_add/device_del,
respectively.

Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 hw/ppc/spapr_pci.c | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index 3178a70..2e7590c 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -1075,6 +1075,9 @@  static void spapr_phb_hot_plug_child(HotplugHandler *plug_handler,
         error_propagate(errp, local_err);
         return;
     }
+    if (plugged_dev->hotplugged) {
+        spapr_hotplug_req_add_event(drc);
+    }
 }
 
 static void spapr_phb_hot_unplug_child(HotplugHandler *plug_handler,
@@ -1101,6 +1104,7 @@  static void spapr_phb_hot_unplug_child(HotplugHandler *plug_handler,
             error_propagate(errp, local_err);
             return;
         }
+        spapr_hotplug_req_remove_event(drc);
     }
 }