drivers/virtio/virtio_mmio.h

1 /* SPDX-License-Identifier: GPL-2.0+ */
14 /* Magic value ("virt" string) - Read Only */
17 /* Virtio device version - Read Only */
20 /* Virtio device ID - Read Only */
23 /* Virtio vendor ID - Read Only */
28  * (32 bits per set) - Read Only
32 /* Device (host) features set selector - Write Only */
37  * (32 bits per set) - Write Only
41 /* Activated features set selector - Write Only */
44 #ifndef VIRTIO_MMIO_NO_LEGACY /* LEGACY DEVICES ONLY! */
46 /* Guest's memory page size in bytes - Write Only */
51 /* Queue selector - Write Only */
54 /* Maximum size of the currently selected queue - Read Only */
57 /* Queue size for the currently selected queue - Write Only */
60 #ifndef VIRTIO_MMIO_NO_LEGACY /* LEGACY DEVICES ONLY! */
62 /* Used Ring alignment for the currently selected queue - Write Only */
65 /* Guest's PFN for the currently selected queue - Read Write */
70 /* Ready bit for the currently selected queue - Read Write */
73 /* Queue notifier - Write Only */
76 /* Interrupt status - Read Only */
79 /* Interrupt acknowledge - Write Only */
82 /* Device status register - Read Write */
102  * the per-driver configuration space - Read Write