/*- * Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com> * All rights reserved. * * This software was developed by SRI International and the University of * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) * ("CTSRD"), as part of the DARPA CRASH research programme. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef _VIRTIO_MMIO_H #define _VIRTIO_MMIO_H DECLARE_CLASS(vtmmio_driver); struct vtmmio_virtqueue; struct vtmmio_softc { device_t dev; struct resource *res[2]; uint64_t vtmmio_features; uint32_t vtmmio_flags; uint32_t vtmmio_version; /* This "bus" will only ever have one child. */ device_t vtmmio_child_dev; struct virtio_feature_desc *vtmmio_child_feat_desc; int vtmmio_nvqs; struct vtmmio_virtqueue *vtmmio_vqs; void *ih; }; int vtmmio_probe(device_t); int vtmmio_attach(device_t); #define VIRTIO_MMIO_MAGIC_VALUE 0x000 #define VIRTIO_MMIO_VERSION 0x004 #define VIRTIO_MMIO_DEVICE_ID 0x008 #define VIRTIO_MMIO_VENDOR_ID 0x00c #define VIRTIO_MMIO_HOST_FEATURES 0x010 #define VIRTIO_MMIO_HOST_FEATURES_SEL 0x014 #define VIRTIO_MMIO_GUEST_FEATURES 0x020 #define VIRTIO_MMIO_GUEST_FEATURES_SEL 0x024 #define VIRTIO_MMIO_GUEST_PAGE_SIZE 0x028 /* version 1 only */ #define VIRTIO_MMIO_QUEUE_SEL 0x030 #define VIRTIO_MMIO_QUEUE_NUM_MAX 0x034 #define VIRTIO_MMIO_QUEUE_NUM 0x038 #define VIRTIO_MMIO_QUEUE_ALIGN 0x03c /* version 1 only */ #define VIRTIO_MMIO_QUEUE_PFN 0x040 /* version 1 only */ #define VIRTIO_MMIO_QUEUE_READY 0x044 /* requires version 2 */ #define VIRTIO_MMIO_QUEUE_NOTIFY 0x050 #define VIRTIO_MMIO_INTERRUPT_STATUS 0x060 #define VIRTIO_MMIO_INTERRUPT_ACK 0x064 #define VIRTIO_MMIO_STATUS 0x070 #define VIRTIO_MMIO_QUEUE_DESC_LOW 0x080 /* requires version 2 */ #define VIRTIO_MMIO_QUEUE_DESC_HIGH 0x084 /* requires version 2 */ #define VIRTIO_MMIO_QUEUE_AVAIL_LOW 0x090 /* requires version 2 */ #define VIRTIO_MMIO_QUEUE_AVAIL_HIGH 0x094 /* requires version 2 */ #define VIRTIO_MMIO_QUEUE_USED_LOW 0x0a0 /* requires version 2 */ #define VIRTIO_MMIO_QUEUE_USED_HIGH 0x0a4 /* requires version 2 */ #define VIRTIO_MMIO_CONFIG_GENERATION 0x0fc /* requires version 2 */ #define VIRTIO_MMIO_CONFIG 0x100 #define VIRTIO_MMIO_MAGIC_VIRT 0x74726976 #define VIRTIO_MMIO_INT_VRING (1 << 0) #define VIRTIO_MMIO_INT_CONFIG (1 << 1) #define VIRTIO_MMIO_VRING_ALIGN 4096 #endif /* _VIRTIO_MMIO_H */
