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spapr_pci: emit hotplug add/remove events during hotplug 

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>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Tyrel Datwyler 2015-05-07 15:33:56 +10:00 committed by Alexander Graf
parent 7454c7af91
commit c5bc152bc3
1 changed files with 4 additions and 0 deletions
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4
hw/ppc/spapr_pci.c
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@ -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);
}
}