diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2015-06-04 12:34:35 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-06-10 18:15:06 +0200 |
| commit | a3cc2e81592aba6d818005c078b94b16ba47a02c (patch) | |
| tree | 166411e0d8a34f7575a464586fba0db1ed86ad71 /hw/virtio | |
| parent | 1141ce2190c85daacfa9b874476651ed0f7dc6df (diff) | |
virtio-pci: add virtio_pci_modern_region_map()
Add function to map modern virtio regions.
Add offset to VirtIOPCIRegion.
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>
Diffstat (limited to 'hw/virtio')
| -rw-r--r-- | hw/virtio/virtio-pci.c | 25 | ||||
| -rw-r--r-- | hw/virtio/virtio-pci.h | 1 |
2 files changed, 20 insertions, 6 deletions
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index 090e95b572..759cfc4592 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -1251,20 +1251,35 @@ static void virtio_pci_modern_regions_init(VirtIOPCIProxy *proxy) &common_ops, proxy, "virtio-pci-common", 0x1000); + proxy->common.offset = 0x0; + memory_region_init_io(&proxy->isr.mr, OBJECT(proxy), &isr_ops, proxy, "virtio-pci-isr", 0x1000); + proxy->isr.offset = 0x1000; + memory_region_init_io(&proxy->device.mr, OBJECT(proxy), &device_ops, virtio_bus_get_device(&proxy->bus), "virtio-pci-device", 0x1000); + proxy->device.offset = 0x2000; + memory_region_init_io(&proxy->notify.mr, OBJECT(proxy), ¬ify_ops, virtio_bus_get_device(&proxy->bus), "virtio-pci-notify", QEMU_VIRTIO_PCI_QUEUE_MEM_MULT * VIRTIO_QUEUE_MAX); + proxy->notify.offset = 0x3000; +} + +static void virtio_pci_modern_region_map(VirtIOPCIProxy *proxy, + VirtIOPCIRegion *region) +{ + memory_region_add_subregion(&proxy->modern_bar, + region->offset, + ®ion->mr); } /* This is called by virtio-bus just after the device is plugged. */ @@ -1359,12 +1374,10 @@ static void virtio_pci_device_plugged(DeviceState *d, Error **errp) 2 * QEMU_VIRTIO_PCI_QUEUE_MEM_MULT * VIRTIO_QUEUE_MAX); virtio_pci_modern_regions_init(proxy); - memory_region_add_subregion(&proxy->modern_bar, 0, &proxy->common.mr); - memory_region_add_subregion(&proxy->modern_bar, 0x1000, &proxy->isr.mr); - memory_region_add_subregion(&proxy->modern_bar, 0x2000, - &proxy->device.mr); - memory_region_add_subregion(&proxy->modern_bar, 0x3000, - &proxy->notify.mr); + virtio_pci_modern_region_map(proxy, &proxy->common); + virtio_pci_modern_region_map(proxy, &proxy->isr); + virtio_pci_modern_region_map(proxy, &proxy->device); + virtio_pci_modern_region_map(proxy, &proxy->notify); pci_register_bar(&proxy->pci_dev, modern_mem_bar, PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_PREFETCH | diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h index 8f1fc025d3..f5829b07a5 100644 --- a/hw/virtio/virtio-pci.h +++ b/hw/virtio/virtio-pci.h @@ -93,6 +93,7 @@ typedef struct VirtioPCIClass { typedef struct VirtIOPCIRegion { MemoryRegion mr; + uint32_t offset; } VirtIOPCIRegion; struct VirtIOPCIProxy { |