root / hw / s390-virtio-bus.h @ 49823868
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1 | f3304eea | Alexander Graf | /*
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2 | f3304eea | Alexander Graf | * QEMU S390x VirtIO BUS definitions
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3 | f3304eea | Alexander Graf | *
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4 | f3304eea | Alexander Graf | * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
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5 | f3304eea | Alexander Graf | *
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6 | f3304eea | Alexander Graf | * This library is free software; you can redistribute it and/or
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7 | f3304eea | Alexander Graf | * modify it under the terms of the GNU Lesser General Public
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8 | f3304eea | Alexander Graf | * License as published by the Free Software Foundation; either
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9 | f3304eea | Alexander Graf | * version 2 of the License, or (at your option) any later version.
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10 | f3304eea | Alexander Graf | *
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11 | f3304eea | Alexander Graf | * This library is distributed in the hope that it will be useful,
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12 | f3304eea | Alexander Graf | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | f3304eea | Alexander Graf | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | f3304eea | Alexander Graf | * Lesser General Public License for more details.
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15 | f3304eea | Alexander Graf | *
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16 | f3304eea | Alexander Graf | * You should have received a copy of the GNU Lesser General Public
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17 | f3304eea | Alexander Graf | * License along with this library; if not, see <http://www.gnu.org/licenses/>.
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18 | f3304eea | Alexander Graf | */
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19 | f3304eea | Alexander Graf | |
20 | f3304eea | Alexander Graf | #define VIRTIO_DEV_OFFS_TYPE 0 /* 8 bits */ |
21 | f3304eea | Alexander Graf | #define VIRTIO_DEV_OFFS_NUM_VQ 1 /* 8 bits */ |
22 | f3304eea | Alexander Graf | #define VIRTIO_DEV_OFFS_FEATURE_LEN 2 /* 8 bits */ |
23 | f3304eea | Alexander Graf | #define VIRTIO_DEV_OFFS_CONFIG_LEN 3 /* 8 bits */ |
24 | f3304eea | Alexander Graf | #define VIRTIO_DEV_OFFS_STATUS 4 /* 8 bits */ |
25 | f3304eea | Alexander Graf | #define VIRTIO_DEV_OFFS_CONFIG 5 /* dynamic */ |
26 | f3304eea | Alexander Graf | |
27 | f3304eea | Alexander Graf | #define VIRTIO_VQCONFIG_OFFS_TOKEN 0 /* 64 bits */ |
28 | f3304eea | Alexander Graf | #define VIRTIO_VQCONFIG_OFFS_ADDRESS 8 /* 64 bits */ |
29 | f3304eea | Alexander Graf | #define VIRTIO_VQCONFIG_OFFS_NUM 16 /* 16 bits */ |
30 | f3304eea | Alexander Graf | #define VIRTIO_VQCONFIG_LEN 24 |
31 | f3304eea | Alexander Graf | |
32 | f3304eea | Alexander Graf | #define VIRTIO_RING_LEN (TARGET_PAGE_SIZE * 3) |
33 | f3304eea | Alexander Graf | #define S390_DEVICE_PAGES 256 |
34 | f3304eea | Alexander Graf | |
35 | f3304eea | Alexander Graf | typedef struct VirtIOS390Device { |
36 | f3304eea | Alexander Graf | DeviceState qdev; |
37 | f3304eea | Alexander Graf | ram_addr_t dev_offs; |
38 | f3304eea | Alexander Graf | ram_addr_t feat_offs; |
39 | f3304eea | Alexander Graf | uint8_t feat_len; |
40 | f3304eea | Alexander Graf | VirtIODevice *vdev; |
41 | 428c149b | Christoph Hellwig | BlockConf block; |
42 | f3304eea | Alexander Graf | NICConf nic; |
43 | 8172539d | Michael S. Tsirkin | uint32_t host_features; |
44 | 98b19252 | Amit Shah | /* Max. number of ports we can have for a the virtio-serial device */
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45 | 98b19252 | Amit Shah | uint32_t max_virtserial_ports; |
46 | f3304eea | Alexander Graf | } VirtIOS390Device; |
47 | f3304eea | Alexander Graf | |
48 | f3304eea | Alexander Graf | typedef struct VirtIOS390Bus { |
49 | f3304eea | Alexander Graf | BusState bus; |
50 | f3304eea | Alexander Graf | |
51 | f3304eea | Alexander Graf | VirtIOS390Device *console; |
52 | f3304eea | Alexander Graf | ram_addr_t dev_page; |
53 | f3304eea | Alexander Graf | ram_addr_t dev_offs; |
54 | f3304eea | Alexander Graf | ram_addr_t next_ring; |
55 | f3304eea | Alexander Graf | } VirtIOS390Bus; |
56 | f3304eea | Alexander Graf | |
57 | f3304eea | Alexander Graf | |
58 | f3304eea | Alexander Graf | extern void s390_virtio_device_update_status(VirtIOS390Device *dev); |
59 | f3304eea | Alexander Graf | |
60 | f3304eea | Alexander Graf | extern VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus);
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61 | f3304eea | Alexander Graf | extern VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size);
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62 | f3304eea | Alexander Graf | |
63 | f3304eea | Alexander Graf | extern VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
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64 | f3304eea | Alexander Graf | ram_addr_t mem, |
65 | f3304eea | Alexander Graf | int *vq_num);
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66 | f3304eea | Alexander Graf | extern VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus,
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67 | f3304eea | Alexander Graf | ram_addr_t mem); |
68 | baf0b55a | Alexander Graf | extern void s390_virtio_device_sync(VirtIOS390Device *dev); |