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authorGreg Kurz <groug@kaod.org>2019-06-18 10:42:53 +0200
committerDavid Gibson <david@gibson.dropbear.id.au>2019-07-02 09:43:58 +1000
commit7e10b57dd9e0d2570ecccca0e2f418618f303d8c (patch)
tree88db577888820b54b50068a134746e697444fee7 /hw/ppc/spapr_pci.c
parent2a17583082f5350edb17207d76252603ec960afa (diff)
spapr_pci: Fix DRC owner in spapr_dt_pci_bus()
spapr_dt_drc() scans the aliases of all DRConnector objects and filters the ones that it will use to generate OF properties according to their owner and type. Passing bus->parent_dev _works_ if bus belongs to a PCI bridge, but it is NULL if it is the PHB's root bus. This causes all allocated PCI DRCs to be associated to all PHBs (visible in their "ibm,drc-types" properties). As a consequence, hot unplugging a PHB results in PCI devices from the other PHBs to be unplugged as well, and likely confuses the guest. Use the same logic as in add_drcs() to ensure the correct owner is passed to spapr_dt_drc(). Fixes: 14e714900f6b "spapr: Allow hot plug/unplug of PCI bridges and devices under PCI bridges" Signed-off-by: Greg Kurz <groug@kaod.org> Message-Id: <156084737348.512412.3552825999605902691.stgit@bahia.lan> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/ppc/spapr_pci.c')
-rw-r--r--hw/ppc/spapr_pci.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index fbeb1c90ee..2dca1e57f3 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -1343,6 +1343,7 @@ static void spapr_dt_pci_device_cb(PCIBus *bus, PCIDevice *pdev,
static int spapr_dt_pci_bus(SpaprPhbState *sphb, PCIBus *bus,
void *fdt, int offset)
{
+ Object *owner;
PciWalkFdt cbinfo = {
.fdt = fdt,
.offset = offset,
@@ -1363,7 +1364,13 @@ static int spapr_dt_pci_bus(SpaprPhbState *sphb, PCIBus *bus,
return cbinfo.err;
}
- ret = spapr_dt_drc(fdt, offset, OBJECT(bus->parent_dev),
+ if (pci_bus_is_root(bus)) {
+ owner = OBJECT(sphb);
+ } else {
+ owner = OBJECT(pci_bridge_get_device(bus));
+ }
+
+ ret = spapr_dt_drc(fdt, offset, owner,
SPAPR_DR_CONNECTOR_TYPE_PCI);
if (ret) {
return ret;