ppc440: Stop using system io region for PCIe buses

Add separate memory regions for the mem and io spaces of the PCIe bus
to avoid different buses using the same system io region.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <b631c3a61729eee2166d899b8888164ebeb71574.1688586835.git.balaton@eik.bme.hu>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>

diff --git a/hw/ppc/ppc440_uc.c b/hw/ppc/ppc440_uc.c
index 5724db2702a31dc044e70ded90399e4a0e0c700d..663abf34494168679b46d7b2c634e03798291e73 100644 (file)
--- a/hw/ppc/ppc440_uc.c
+++ b/hw/ppc/ppc440_uc.c
@@ -776,6 +776,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(PPC460EXPCIEState, PPC460EX_PCIE_HOST)
 struct PPC460EXPCIEState {
     PCIExpressHost parent_obj;
 
+    MemoryRegion busmem;
     MemoryRegion iomem;
     qemu_irq irq[4];
     int32_t dcrn_base;
@@ -1056,15 +1057,17 @@ static void ppc460ex_pcie_realize(DeviceState *dev, Error **errp)
         error_setg(errp, "invalid PCIe DCRN base");
         return;
     }
+    snprintf(buf, sizeof(buf), "pcie%d-mem", id);
+    memory_region_init(&s->busmem, OBJECT(s), buf, UINT64_MAX);
     snprintf(buf, sizeof(buf), "pcie%d-io", id);
-    memory_region_init(&s->iomem, OBJECT(s), buf, UINT64_MAX);
+    memory_region_init(&s->iomem, OBJECT(s), buf, 64 * KiB);
     for (i = 0; i < 4; i++) {
         sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->irq[i]);
     }
     snprintf(buf, sizeof(buf), "pcie.%d", id);
     pci->bus = pci_register_root_bus(DEVICE(s), buf, ppc460ex_set_irq,
-                                pci_swizzle_map_irq_fn, s, &s->iomem,
-                                get_system_io(), 0, 4, TYPE_PCIE_BUS);
+                                pci_swizzle_map_irq_fn, s, &s->busmem,
+                                &s->iomem, 0, 4, TYPE_PCIE_BUS);
     ppc460ex_pcie_register_dcrs(s);
 }