diff options
author | Greg Kurz <groug@kaod.org> | 2019-06-18 10:42:53 +0200 |
---|---|---|
committer | David Gibson <david@gibson.dropbear.id.au> | 2019-07-02 09:43:58 +1000 |
commit | 7e10b57dd9e0d2570ecccca0e2f418618f303d8c (patch) | |
tree | 88db577888820b54b50068a134746e697444fee7 /hw/ppc/spapr_pci.c | |
parent | 2a17583082f5350edb17207d76252603ec960afa (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.c | 9 |
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; |