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f3304eea AG |
1 | /* |
2 | * QEMU S390x VirtIO BUS definitions | |
3 | * | |
4 | * Copyright (c) 2009 Alexander Graf <agraf@suse.de> | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2 of the License, or (at your option) any later version. | |
10 | * | |
11 | * This library is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
cb9c377f PB |
19 | #ifndef HW_S390_VIRTIO_BUS_H |
20 | #define HW_S390_VIRTIO_BUS_H 1 | |
f3304eea | 21 | |
12c5674b | 22 | #include "virtio-blk.h" |
6c33286a | 23 | #include "virtio-net.h" |
16c915ba | 24 | #include "virtio-rng.h" |
6be9b414 | 25 | #include "virtio-serial.h" |
973abc7f | 26 | #include "virtio-scsi.h" |
6c33286a | 27 | |
f3304eea AG |
28 | #define VIRTIO_DEV_OFFS_TYPE 0 /* 8 bits */ |
29 | #define VIRTIO_DEV_OFFS_NUM_VQ 1 /* 8 bits */ | |
30 | #define VIRTIO_DEV_OFFS_FEATURE_LEN 2 /* 8 bits */ | |
31 | #define VIRTIO_DEV_OFFS_CONFIG_LEN 3 /* 8 bits */ | |
32 | #define VIRTIO_DEV_OFFS_STATUS 4 /* 8 bits */ | |
33 | #define VIRTIO_DEV_OFFS_CONFIG 5 /* dynamic */ | |
34 | ||
35 | #define VIRTIO_VQCONFIG_OFFS_TOKEN 0 /* 64 bits */ | |
36 | #define VIRTIO_VQCONFIG_OFFS_ADDRESS 8 /* 64 bits */ | |
37 | #define VIRTIO_VQCONFIG_OFFS_NUM 16 /* 16 bits */ | |
38 | #define VIRTIO_VQCONFIG_LEN 24 | |
39 | ||
40 | #define VIRTIO_RING_LEN (TARGET_PAGE_SIZE * 3) | |
4170aea1 JF |
41 | #define VIRTIO_VRING_AVAIL_IDX_OFFS 2 |
42 | #define VIRTIO_VRING_USED_IDX_OFFS 2 | |
d1ff903c | 43 | #define S390_DEVICE_PAGES 512 |
f3304eea | 44 | |
7fa41e53 AG |
45 | #define VIRTIO_PARAM_MASK 0xff |
46 | #define VIRTIO_PARAM_VRING_INTERRUPT 0x0 | |
47 | #define VIRTIO_PARAM_CONFIG_CHANGED 0x1 | |
48 | #define VIRTIO_PARAM_DEV_ADD 0x2 | |
49 | ||
39bffca2 AL |
50 | #define TYPE_VIRTIO_S390_DEVICE "virtio-s390-device" |
51 | #define VIRTIO_S390_DEVICE(obj) \ | |
52 | OBJECT_CHECK(VirtIOS390Device, (obj), TYPE_VIRTIO_S390_DEVICE) | |
53 | #define VIRTIO_S390_DEVICE_CLASS(klass) \ | |
54 | OBJECT_CLASS_CHECK(VirtIOS390DeviceClass, (klass), TYPE_VIRTIO_S390_DEVICE) | |
55 | #define VIRTIO_S390_DEVICE_GET_CLASS(obj) \ | |
56 | OBJECT_GET_CLASS(VirtIOS390DeviceClass, (obj), TYPE_VIRTIO_S390_DEVICE) | |
57 | ||
0d936928 AL |
58 | #define TYPE_S390_VIRTIO_BUS "s390-virtio-bus" |
59 | #define S390_VIRTIO_BUS(obj) \ | |
60 | OBJECT_CHECK(VirtIOS390Bus, (obj), TYPE_S390_VIRTIO_BUS) | |
61 | ||
39bffca2 AL |
62 | typedef struct VirtIOS390Device VirtIOS390Device; |
63 | ||
64 | typedef struct VirtIOS390DeviceClass { | |
65 | DeviceClass qdev; | |
66 | int (*init)(VirtIOS390Device *dev); | |
67 | } VirtIOS390DeviceClass; | |
68 | ||
69 | struct VirtIOS390Device { | |
f3304eea AG |
70 | DeviceState qdev; |
71 | ram_addr_t dev_offs; | |
72 | ram_addr_t feat_offs; | |
73 | uint8_t feat_len; | |
74 | VirtIODevice *vdev; | |
12c5674b | 75 | VirtIOBlkConf blk; |
f3304eea | 76 | NICConf nic; |
8172539d | 77 | uint32_t host_features; |
6be9b414 | 78 | virtio_serial_conf serial; |
f0c07c7c | 79 | virtio_net_conf net; |
973abc7f | 80 | VirtIOSCSIConf scsi; |
16c915ba | 81 | VirtIORNGConf rng; |
39bffca2 | 82 | }; |
f3304eea AG |
83 | |
84 | typedef struct VirtIOS390Bus { | |
85 | BusState bus; | |
86 | ||
87 | VirtIOS390Device *console; | |
88 | ram_addr_t dev_page; | |
89 | ram_addr_t dev_offs; | |
90 | ram_addr_t next_ring; | |
91 | } VirtIOS390Bus; | |
92 | ||
93 | ||
64b85a8f | 94 | void s390_virtio_device_update_status(VirtIOS390Device *dev); |
f3304eea | 95 | |
64b85a8f BS |
96 | VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus); |
97 | VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size); | |
f3304eea | 98 | |
64b85a8f BS |
99 | VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus, |
100 | ram_addr_t mem, int *vq_num); | |
101 | VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem); | |
102 | void s390_virtio_device_sync(VirtIOS390Device *dev); | |
4170aea1 JF |
103 | void s390_virtio_reset_idx(VirtIOS390Device *dev); |
104 | ||
cb9c377f PB |
105 | |
106 | #endif |