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virtio-pci: add struct VirtIOPCIRegion for virtio-1 regions

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For now just place the MemoryRegion there,
following patches will add more.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Gerd Hoffmann 2015-06-04 12:34:33 +02:00 committed by Michael S. Tsirkin
parent 40de55affd
commit 588255ad50
2 changed files with 19 additions and 13 deletions
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20
hw/virtio/virtio-pci.c
View File

@ -145,7 +145,7 @@ static int virtio_pci_set_host_notifier_internal(VirtIOPCIProxy *proxy,
EventNotifier *notifier = virtio_queue_get_host_notifier(vq);
bool legacy = !(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_LEGACY);
bool modern = !(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_MODERN);
MemoryRegion *modern_mr = &proxy->notify;
MemoryRegion *modern_mr = &proxy->notify.mr;
MemoryRegion *legacy_mr = &proxy->bar;
hwaddr modern_addr = QEMU_VIRTIO_PCI_QUEUE_MEM_MULT *
virtio_get_queue_index(vq);
@ -1340,28 +1340,30 @@ static void virtio_pci_device_plugged(DeviceState *d, Error **errp)
memory_region_init(&proxy->modern_bar, OBJECT(proxy), "virtio-pci",
2 * QEMU_VIRTIO_PCI_QUEUE_MEM_MULT *
VIRTIO_QUEUE_MAX);
memory_region_init_io(&proxy->common, OBJECT(proxy),
memory_region_init_io(&proxy->common.mr, OBJECT(proxy),
&common_ops,
proxy,
"virtio-pci-common", 0x1000);
memory_region_add_subregion(&proxy->modern_bar, 0, &proxy->common);
memory_region_init_io(&proxy->isr, OBJECT(proxy),
memory_region_add_subregion(&proxy->modern_bar, 0, &proxy->common.mr);
memory_region_init_io(&proxy->isr.mr, OBJECT(proxy),
&isr_ops,
proxy,
"virtio-pci-isr", 0x1000);
memory_region_add_subregion(&proxy->modern_bar, 0x1000, &proxy->isr);
memory_region_init_io(&proxy->device, OBJECT(proxy),
memory_region_add_subregion(&proxy->modern_bar, 0x1000, &proxy->isr.mr);
memory_region_init_io(&proxy->device.mr, OBJECT(proxy),
&device_ops,
virtio_bus_get_device(&proxy->bus),
"virtio-pci-device", 0x1000);
memory_region_add_subregion(&proxy->modern_bar, 0x2000, &proxy->device);
memory_region_init_io(&proxy->notify, OBJECT(proxy),
memory_region_add_subregion(&proxy->modern_bar, 0x2000,
&proxy->device.mr);
memory_region_init_io(&proxy->notify.mr, OBJECT(proxy),
&notify_ops,
virtio_bus_get_device(&proxy->bus),
"virtio-pci-notify",
QEMU_VIRTIO_PCI_QUEUE_MEM_MULT *
VIRTIO_QUEUE_MAX);
memory_region_add_subregion(&proxy->modern_bar, 0x3000, &proxy->notify);
memory_region_add_subregion(&proxy->modern_bar, 0x3000,
&proxy->notify.mr);
pci_register_bar(&proxy->pci_dev, modern_mem_bar,
PCI_BASE_ADDRESS_SPACE_MEMORY |
PCI_BASE_ADDRESS_MEM_PREFETCH |

12
hw/virtio/virtio-pci.h
View File

@ -91,13 +91,17 @@ typedef struct VirtioPCIClass {
void (*realize)(VirtIOPCIProxy *vpci_dev, Error **errp);
} VirtioPCIClass;
typedef struct VirtIOPCIRegion {
MemoryRegion mr;
} VirtIOPCIRegion;
struct VirtIOPCIProxy {
PCIDevice pci_dev;
MemoryRegion bar;
MemoryRegion common;
MemoryRegion isr;
MemoryRegion device;
MemoryRegion notify;
VirtIOPCIRegion common;
VirtIOPCIRegion isr;
VirtIOPCIRegion device;
VirtIOPCIRegion notify;
MemoryRegion modern_bar;
uint32_t flags;
uint32_t class_code;