diff options
Diffstat (limited to 'include/linux/virtio_pci.h')
| -rw-r--r-- | include/linux/virtio_pci.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/virtio_pci.h b/include/linux/virtio_pci.h index cdef35742932..e13d7ebcf576 100644 --- a/include/linux/virtio_pci.h +++ b/include/linux/virtio_pci.h | |||
| @@ -53,4 +53,8 @@ | |||
| 53 | 53 | ||
| 54 | /* Virtio ABI version, this must match exactly */ | 54 | /* Virtio ABI version, this must match exactly */ |
| 55 | #define VIRTIO_PCI_ABI_VERSION 0 | 55 | #define VIRTIO_PCI_ABI_VERSION 0 |
| 56 | |||
| 57 | /* How many bits to shift physical queue address written to QUEUE_PFN. | ||
| 58 | * 12 is historical, and due to x86 page size. */ | ||
| 59 | #define VIRTIO_PCI_QUEUE_ADDR_SHIFT 12 | ||
| 56 | #endif | 60 | #endif |