diff options
| -rw-r--r-- | hw/pci-host/prep.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/hw/pci-host/prep.c b/hw/pci-host/prep.c index 7f23a11..8109625 100644 --- a/hw/pci-host/prep.c +++ b/hw/pci-host/prep.c @@ -59,6 +59,10 @@ typedef struct PRePPCIState { MemoryRegion pci_io_non_contiguous; MemoryRegion pci_memory; MemoryRegion pci_intack; + MemoryRegion bm; + MemoryRegion bm_ram_alias; + MemoryRegion bm_pci_memory_alias; + AddressSpace bm_as; RavenPCIState pci_dev; int contiguous_map; @@ -190,6 +194,14 @@ static void prep_set_irq(void *opaque, int irq_num, int level) qemu_set_irq(pic[irq_num] , level); } +static AddressSpace *raven_pcihost_set_iommu(PCIBus *bus, void *opaque, + int devfn) +{ + PREPPCIState *s = opaque; + + return &s->bm_as; +} + static void raven_change_gpio(void *opaque, int n, int level) { PREPPCIState *s = opaque; @@ -255,6 +267,18 @@ static void raven_pcihost_initfn(Object *obj) pci_bus_new_inplace(&s->pci_bus, sizeof(s->pci_bus), DEVICE(obj), NULL, &s->pci_memory, &s->pci_io, 0, TYPE_PCI_BUS); + /* Bus master address space */ + memory_region_init(&s->bm, obj, "bm-raven", UINT32_MAX); + memory_region_init_alias(&s->bm_pci_memory_alias, obj, "bm-pci-memory", + &s->pci_memory, 0, + memory_region_size(&s->pci_memory)); + memory_region_init_alias(&s->bm_ram_alias, obj, "bm-system", + get_system_memory(), 0, 0x80000000); + memory_region_add_subregion(&s->bm, 0 , &s->bm_pci_memory_alias); + memory_region_add_subregion(&s->bm, 0x80000000, &s->bm_ram_alias); + address_space_init(&s->bm_as, &s->bm, "raven-bm"); + pci_setup_iommu(&s->pci_bus, raven_pcihost_set_iommu, s); + h->bus = &s->pci_bus; object_initialize(&s->pci_dev, sizeof(s->pci_dev), TYPE_RAVEN_PCI_DEVICE); |