| virtio.h (330449) | virtio.h (336161) |
|---|---|
| 1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2013 Chris Torek <torek @ torek net> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions --- 11 unchanged lines hidden (view full) --- 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * | 1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2013 Chris Torek <torek @ torek net> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions --- 11 unchanged lines hidden (view full) --- 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * |
| 28 * $FreeBSD: stable/11/usr.sbin/bhyve/virtio.h 330449 2018-03-05 07:26:05Z eadler $ | 28 * $FreeBSD: stable/11/usr.sbin/bhyve/virtio.h 336161 2018-07-10 04:26:32Z araujo $ |
| 29 */ 30 31#ifndef _VIRTIO_H_ 32#define _VIRTIO_H_ 33 34/* 35 * These are derived from several virtio specifications. 36 * --- 144 unchanged lines hidden (view full) --- 181 * QNOTIFY is effectively write-only: when the guest writes a queue 182 * number to the register, the hypervisor should scan the specified 183 * virtqueue. (Reading QNOTIFY currently always gets 0). 184 */ 185 186/* 187 * PFN register shift amount 188 */ | 29 */ 30 31#ifndef _VIRTIO_H_ 32#define _VIRTIO_H_ 33 34/* 35 * These are derived from several virtio specifications. 36 * --- 144 unchanged lines hidden (view full) --- 181 * QNOTIFY is effectively write-only: when the guest writes a queue 182 * number to the register, the hypervisor should scan the specified 183 * virtqueue. (Reading QNOTIFY currently always gets 0). 184 */ 185 186/* 187 * PFN register shift amount 188 */ |
| 189#define VRING_PFN 12 | 189#define VRING_PFN 12 |
| 190 191/* 192 * Virtio device types 193 * 194 * XXX Should really be merged with <dev/virtio/virtio.h> defines 195 */ 196#define VIRTIO_TYPE_NET 1 197#define VIRTIO_TYPE_BLOCK 2 --- 20 unchanged lines hidden (view full) --- 218 * PCI config space constants. 219 * 220 * If MSI-X is enabled, the ISR register is generally not used, 221 * and the configuration vector and queue vector appear at offsets 222 * 20 and 22 with the remaining configuration registers at 24. 223 * If MSI-X is not enabled, those two registers disappear and 224 * the remaining configuration registers start at offset 20. 225 */ | 190 191/* 192 * Virtio device types 193 * 194 * XXX Should really be merged with <dev/virtio/virtio.h> defines 195 */ 196#define VIRTIO_TYPE_NET 1 197#define VIRTIO_TYPE_BLOCK 2 --- 20 unchanged lines hidden (view full) --- 218 * PCI config space constants. 219 * 220 * If MSI-X is enabled, the ISR register is generally not used, 221 * and the configuration vector and queue vector appear at offsets 222 * 20 and 22 with the remaining configuration registers at 24. 223 * If MSI-X is not enabled, those two registers disappear and 224 * the remaining configuration registers start at offset 20. 225 */ |
| 226#define VTCFG_R_HOSTCAP 0 227#define VTCFG_R_GUESTCAP 4 228#define VTCFG_R_PFN 8 229#define VTCFG_R_QNUM 12 230#define VTCFG_R_QSEL 14 231#define VTCFG_R_QNOTIFY 16 232#define VTCFG_R_STATUS 18 233#define VTCFG_R_ISR 19 234#define VTCFG_R_CFGVEC 20 235#define VTCFG_R_QVEC 22 236#define VTCFG_R_CFG0 20 /* No MSI-X */ 237#define VTCFG_R_CFG1 24 /* With MSI-X */ 238#define VTCFG_R_MSIX 20 | 226#define VTCFG_R_HOSTCAP 0 227#define VTCFG_R_GUESTCAP 4 228#define VTCFG_R_PFN 8 229#define VTCFG_R_QNUM 12 230#define VTCFG_R_QSEL 14 231#define VTCFG_R_QNOTIFY 16 232#define VTCFG_R_STATUS 18 233#define VTCFG_R_ISR 19 234#define VTCFG_R_CFGVEC 20 235#define VTCFG_R_QVEC 22 236#define VTCFG_R_CFG0 20 /* No MSI-X */ 237#define VTCFG_R_CFG1 24 /* With MSI-X */ 238#define VTCFG_R_MSIX 20 |
| 239 240/* 241 * Bits in VTCFG_R_STATUS. Guests need not actually set any of these, 242 * but a guest writing 0 to this register means "please reset". 243 */ 244#define VTCFG_STATUS_ACK 0x01 /* guest OS has acknowledged dev */ 245#define VTCFG_STATUS_DRIVER 0x02 /* guest OS driver is loaded */ 246#define VTCFG_STATUS_DRIVER_OK 0x04 /* guest OS driver ready */ 247#define VTCFG_STATUS_FAILED 0x80 /* guest has given up on this dev */ 248 249/* 250 * Bits in VTCFG_R_ISR. These apply only if not using MSI-X. 251 * 252 * (We don't [yet?] ever use CONF_CHANGED.) 253 */ 254#define VTCFG_ISR_QUEUES 0x01 /* re-scan queues */ 255#define VTCFG_ISR_CONF_CHANGED 0x80 /* configuration changed */ 256 | 239 240/* 241 * Bits in VTCFG_R_STATUS. Guests need not actually set any of these, 242 * but a guest writing 0 to this register means "please reset". 243 */ 244#define VTCFG_STATUS_ACK 0x01 /* guest OS has acknowledged dev */ 245#define VTCFG_STATUS_DRIVER 0x02 /* guest OS driver is loaded */ 246#define VTCFG_STATUS_DRIVER_OK 0x04 /* guest OS driver ready */ 247#define VTCFG_STATUS_FAILED 0x80 /* guest has given up on this dev */ 248 249/* 250 * Bits in VTCFG_R_ISR. These apply only if not using MSI-X. 251 * 252 * (We don't [yet?] ever use CONF_CHANGED.) 253 */ 254#define VTCFG_ISR_QUEUES 0x01 /* re-scan queues */ 255#define VTCFG_ISR_CONF_CHANGED 0x80 /* configuration changed */ 256 |
| 257#define VIRTIO_MSI_NO_VECTOR 0xFFFF | 257#define VIRTIO_MSI_NO_VECTOR 0xFFFF |
| 258 259/* 260 * Feature flags. 261 * Note: bits 0 through 23 are reserved to each device type. 262 */ 263#define VIRTIO_F_NOTIFY_ON_EMPTY (1 << 24) 264#define VIRTIO_RING_F_INDIRECT_DESC (1 << 28) 265#define VIRTIO_RING_F_EVENT_IDX (1 << 29) --- 202 unchanged lines hidden --- | 258 259/* 260 * Feature flags. 261 * Note: bits 0 through 23 are reserved to each device type. 262 */ 263#define VIRTIO_F_NOTIFY_ON_EMPTY (1 << 24) 264#define VIRTIO_RING_F_INDIRECT_DESC (1 << 28) 265#define VIRTIO_RING_F_EVENT_IDX (1 << 29) --- 202 unchanged lines hidden --- |