ppc/pnv: Add a HIOMAP erase command
[qemu.git] / include / hw / virtio / virtio-mmio.h
1 /*
2 * Virtio MMIO bindings
3 *
4 * Copyright (c) 2011 Linaro Limited
5 *
6 * Author:
7 * Peter Maydell <peter.maydell@linaro.org>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License; either version 2
11 * of the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, see <http://www.gnu.org/licenses/>.
20 */
21
22 #ifndef HW_VIRTIO_MMIO_H
23 #define HW_VIRTIO_MMIO_H
24
25 #include "hw/virtio/virtio-bus.h"
26
27 /* QOM macros */
28 /* virtio-mmio-bus */
29 #define TYPE_VIRTIO_MMIO_BUS "virtio-mmio-bus"
30 #define VIRTIO_MMIO_BUS(obj) \
31 OBJECT_CHECK(VirtioBusState, (obj), TYPE_VIRTIO_MMIO_BUS)
32 #define VIRTIO_MMIO_BUS_GET_CLASS(obj) \
33 OBJECT_GET_CLASS(VirtioBusClass, (obj), TYPE_VIRTIO_MMIO_BUS)
34 #define VIRTIO_MMIO_BUS_CLASS(klass) \
35 OBJECT_CLASS_CHECK(VirtioBusClass, (klass), TYPE_VIRTIO_MMIO_BUS)
36
37 /* virtio-mmio */
38 #define TYPE_VIRTIO_MMIO "virtio-mmio"
39 #define VIRTIO_MMIO(obj) \
40 OBJECT_CHECK(VirtIOMMIOProxy, (obj), TYPE_VIRTIO_MMIO)
41
42 #define VIRT_MAGIC 0x74726976 /* 'virt' */
43 #define VIRT_VERSION 2
44 #define VIRT_VERSION_LEGACY 1
45 #define VIRT_VENDOR 0x554D4551 /* 'QEMU' */
46
47 typedef struct VirtIOMMIOQueue {
48 uint16_t num;
49 bool enabled;
50 uint32_t desc[2];
51 uint32_t avail[2];
52 uint32_t used[2];
53 } VirtIOMMIOQueue;
54
55 typedef struct {
56 /* Generic */
57 SysBusDevice parent_obj;
58 MemoryRegion iomem;
59 qemu_irq irq;
60 bool legacy;
61 /* Guest accessible state needing migration and reset */
62 uint32_t host_features_sel;
63 uint32_t guest_features_sel;
64 uint32_t guest_page_shift;
65 /* virtio-bus */
66 VirtioBusState bus;
67 bool format_transport_address;
68 /* Fields only used for non-legacy (v2) devices */
69 uint32_t guest_features[2];
70 VirtIOMMIOQueue vqs[VIRTIO_QUEUE_MAX];
71 } VirtIOMMIOProxy;
72
73 #endif