[Qemu-devel] [PATCH v2 05/10] raven: set a correct PCI I/O memory region

["Hervé Poussineau" <hpoussin@reactos.org>]

PCI I/O region is 0x3f800000 bytes starting at 0x80000000.
Do not use global QEMU I/O region, which is only 64KB.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
---
 hw/pci-host/prep.c |   15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/hw/pci-host/prep.c b/hw/pci-host/prep.c
index 95fa2ea..af0bf2b 100644
--- a/hw/pci-host/prep.c
+++ b/hw/pci-host/prep.c
@@ -53,6 +53,7 @@ typedef struct PRePPCIState {
 
     qemu_irq irq[PCI_NUM_PINS];
     PCIBus pci_bus;
+    MemoryRegion pci_io;
     MemoryRegion pci_intack;
     RavenPCIState pci_dev;
 } PREPPCIState;
@@ -136,13 +137,11 @@ static void raven_pcihost_realizefn(DeviceState *d, Error **errp)
 
     memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_be_ops, s,
                           "pci-conf-idx", 1);
-    sysbus_add_io(dev, 0xcf8, &h->conf_mem);
-    sysbus_init_ioports(&h->busdev, 0xcf8, 1);
+    memory_region_add_subregion(&s->pci_io, 0xcf8, &h->conf_mem);
 
     memory_region_init_io(&h->data_mem, OBJECT(h), &pci_host_data_be_ops, s,
                           "pci-conf-data", 1);
-    sysbus_add_io(dev, 0xcfc, &h->data_mem);
-    sysbus_init_ioports(&h->busdev, 0xcfc, 1);
+    memory_region_add_subregion(&s->pci_io, 0xcfc, &h->data_mem);
 
     memory_region_init_io(&h->mmcfg, OBJECT(s), &PPC_PCIIO_ops, s, "pciio", 0x00400000);
     memory_region_add_subregion(address_space_mem, 0x80800000, &h->mmcfg);
@@ -160,11 +159,15 @@ static void raven_pcihost_initfn(Object *obj)
     PCIHostState *h = PCI_HOST_BRIDGE(obj);
     PREPPCIState *s = RAVEN_PCI_HOST_BRIDGE(obj);
     MemoryRegion *address_space_mem = get_system_memory();
-    MemoryRegion *address_space_io = get_system_io();
     DeviceState *pci_dev;
 
+    memory_region_init(&s->pci_io, obj, "pci-io", 0x3f800000);
+
+    /* CPU address space */
+    memory_region_add_subregion(address_space_mem, 0x80000000, &s->pci_io);
     pci_bus_new_inplace(&s->pci_bus, DEVICE(obj), NULL,
-                        address_space_mem, address_space_io, 0, TYPE_PCI_BUS);
+                        address_space_mem, &s->pci_io, 0, TYPE_PCI_BUS);
+
     h->bus = &s->pci_bus;
 
     object_initialize(&s->pci_dev, TYPE_RAVEN_PCI_DEVICE);
-- 
1.7.10.4