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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 | */ | |
19 | ||
6c33286a | 20 | #include "virtio-net.h" |
6be9b414 | 21 | #include "virtio-serial.h" |
973abc7f | 22 | #include "virtio-scsi.h" |
6c33286a | 23 | |
f3304eea AG |
24 | #define VIRTIO_DEV_OFFS_TYPE 0 /* 8 bits */ |
25 | #define VIRTIO_DEV_OFFS_NUM_VQ 1 /* 8 bits */ | |
26 | #define VIRTIO_DEV_OFFS_FEATURE_LEN 2 /* 8 bits */ | |
27 | #define VIRTIO_DEV_OFFS_CONFIG_LEN 3 /* 8 bits */ | |
28 | #define VIRTIO_DEV_OFFS_STATUS 4 /* 8 bits */ | |
29 | #define VIRTIO_DEV_OFFS_CONFIG 5 /* dynamic */ | |
30 | ||
31 | #define VIRTIO_VQCONFIG_OFFS_TOKEN 0 /* 64 bits */ | |
32 | #define VIRTIO_VQCONFIG_OFFS_ADDRESS 8 /* 64 bits */ | |
33 | #define VIRTIO_VQCONFIG_OFFS_NUM 16 /* 16 bits */ | |
34 | #define VIRTIO_VQCONFIG_LEN 24 | |
35 | ||
36 | #define VIRTIO_RING_LEN (TARGET_PAGE_SIZE * 3) | |
d1ff903c | 37 | #define S390_DEVICE_PAGES 512 |
f3304eea | 38 | |
7fa41e53 AG |
39 | #define VIRTIO_PARAM_MASK 0xff |
40 | #define VIRTIO_PARAM_VRING_INTERRUPT 0x0 | |
41 | #define VIRTIO_PARAM_CONFIG_CHANGED 0x1 | |
42 | #define VIRTIO_PARAM_DEV_ADD 0x2 | |
43 | ||
39bffca2 AL |
44 | #define TYPE_VIRTIO_S390_DEVICE "virtio-s390-device" |
45 | #define VIRTIO_S390_DEVICE(obj) \ | |
46 | OBJECT_CHECK(VirtIOS390Device, (obj), TYPE_VIRTIO_S390_DEVICE) | |
47 | #define VIRTIO_S390_DEVICE_CLASS(klass) \ | |
48 | OBJECT_CLASS_CHECK(VirtIOS390DeviceClass, (klass), TYPE_VIRTIO_S390_DEVICE) | |
49 | #define VIRTIO_S390_DEVICE_GET_CLASS(obj) \ | |
50 | OBJECT_GET_CLASS(VirtIOS390DeviceClass, (obj), TYPE_VIRTIO_S390_DEVICE) | |
51 | ||
52 | typedef struct VirtIOS390Device VirtIOS390Device; | |
53 | ||
54 | typedef struct VirtIOS390DeviceClass { | |
55 | DeviceClass qdev; | |
56 | int (*init)(VirtIOS390Device *dev); | |
57 | } VirtIOS390DeviceClass; | |
58 | ||
59 | struct VirtIOS390Device { | |
f3304eea AG |
60 | DeviceState qdev; |
61 | ram_addr_t dev_offs; | |
62 | ram_addr_t feat_offs; | |
63 | uint8_t feat_len; | |
64 | VirtIODevice *vdev; | |
428c149b | 65 | BlockConf block; |
a8686a9b | 66 | char *block_serial; |
f3304eea | 67 | NICConf nic; |
8172539d | 68 | uint32_t host_features; |
6be9b414 | 69 | virtio_serial_conf serial; |
f0c07c7c | 70 | virtio_net_conf net; |
973abc7f | 71 | VirtIOSCSIConf scsi; |
39bffca2 | 72 | }; |
f3304eea AG |
73 | |
74 | typedef struct VirtIOS390Bus { | |
75 | BusState bus; | |
76 | ||
77 | VirtIOS390Device *console; | |
78 | ram_addr_t dev_page; | |
79 | ram_addr_t dev_offs; | |
80 | ram_addr_t next_ring; | |
81 | } VirtIOS390Bus; | |
82 | ||
83 | ||
64b85a8f | 84 | void s390_virtio_device_update_status(VirtIOS390Device *dev); |
f3304eea | 85 | |
64b85a8f BS |
86 | VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus); |
87 | VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size); | |
f3304eea | 88 | |
64b85a8f BS |
89 | VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus, |
90 | ram_addr_t mem, int *vq_num); | |
91 | VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem); | |
92 | void s390_virtio_device_sync(VirtIOS390Device *dev); |