spapr_pci: parent the MSI memory region to the PHB

This memory region should be owned by the PHB. This ensures the PHB
cannot be finalized as long as the the region is guest visible, or
used by a CPU or a device.

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index d258bc08d5f0c60e29bf878840c533331ab78004..d7880f257aa14e4ac6df27b3ee87dddfa42febb1 100644 (file)
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -1703,7 +1703,7 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp)
     }
 #endif
 
-    memory_region_init_io(&sphb->msiwindow, NULL, &spapr_msi_ops, spapr,
+    memory_region_init_io(&sphb->msiwindow, OBJECT(sphb), &spapr_msi_ops, spapr,
                           "msi", msi_window_size);
     memory_region_add_subregion(&sphb->iommu_root, SPAPR_PCI_MSI_WINDOW,
                                 &sphb->msiwindow);