Greg Kurz a8eeafda19 spapr/pci: populate PCI DT in reverse order ... Since commit 1d2d974244 "spapr_pci: enumerate and add PCI device tree", QEMU populates the PCI device tree in the opposite order compared to SLOF. Before 1d2d974244: Populating /pci@800000020000000 00 0000 (D) : 1af4 1000 virtio [ net ] 00 0800 (D) : 1af4 1001 virtio [ block ] 00 1000 (D) : 1af4 1009 virtio [ network ] Populating /pci@800000020000000/unknown-legacy-device@2 7e5294b8 : /pci@800000020000000 7e52b998 : |-- ethernet@0 7e52c0c8 : |-- scsi@1 7e52c7e8 : +-- unknown-legacy-device@2 ok Since 1d2d974244: Populating /pci@800000020000000 00 1000 (D) : 1af4 1009 virtio [ network ] Populating /pci@800000020000000/unknown-legacy-device@2 00 0800 (D) : 1af4 1001 virtio [ block ] 00 0000 (D) : 1af4 1000 virtio [ net ] 7e5e8118 : /pci@800000020000000 7e5ea6a0 : |-- unknown-legacy-device@2 7e5eadb8 : |-- scsi@1 7e5eb4d8 : +-- ethernet@0 ok This behaviour change is not actually a bug since no assumptions should be made on DT ordering. But it has no real justification either, other than being the consequence of the way fdt_add_subnode() inserts new elements to the front of the FDT rather than adding them to the tail. This patch reverts to the historical SLOF ordering by walking PCI devices in reverse order. This reconciles pseries with x86 machine types behavior. It is expected to make things easier when porting existing applications to power. Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Tested-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> (slight update to the changelog) Signed-off-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>		2017-03-01 11:23:39 +11:00
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msi.h	pci: Convert msi_init() to Error and fix callers to check it	2016-07-05 13:14:41 +03:00
msix.h	pci: Convert msix_init() to Error and fix callers	2017-02-01 03:37:18 +02:00
pci_bridge.h	Remove unused function declarations	2016-09-15 15:32:22 +03:00
pci_bus.h	hw/pci: delay bus_master_enable_region initialization	2016-07-04 14:50:01 +03:00
pci_host.h	pci: Fold host_buses list into PCIHostState functionality	2013-07-07 23:10:57 +03:00
pci_ids.h	PCI: add missing classes in pci_ids.h to build device tree	2017-03-01 11:23:38 +11:00
pci_regs.h	pci: Introduce define for PM capability version 1.1	2016-06-02 10:42:09 +08:00
pci-assign.h	hw/pci-assign: split pci-assign.c	2015-09-10 12:04:27 +00:00
pci.h	spapr/pci: populate PCI DT in reverse order	2017-03-01 11:23:39 +11:00
pcie_aer.h	pcie_aer: support configurable AER capa version	2017-01-10 07:02:52 +02:00
pcie_host.h	pci: Split pcie_host_mmcfg_map()	2015-01-26 20:25:52 +02:00
pcie_port.h	hw/pcie: Introduce a base class for PCI Express Root Ports	2017-02-01 03:37:17 +02:00
pcie_regs.h	pcie: Add support for PCIe CAP v1	2016-06-02 10:42:26 +08:00
pcie.h	PCI/migration merge vmstate_pci_device and vmstate_pcie_device	2017-01-24 18:00:31 +00:00
shpc.h	include: Clean up includes	2016-02-23 12:43:05 +00:00
slotid_cap.h