projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| 20 | #define VIRTIO_DEV_OFFS_TYPE 0 /* 8 bits */ | |
| 21 | #define VIRTIO_DEV_OFFS_NUM_VQ 1 /* 8 bits */ | |
| 22 | #define VIRTIO_DEV_OFFS_FEATURE_LEN 2 /* 8 bits */ | |
| 23 | #define VIRTIO_DEV_OFFS_CONFIG_LEN 3 /* 8 bits */ | |
| 24 | #define VIRTIO_DEV_OFFS_STATUS 4 /* 8 bits */ | |
| 25 | #define VIRTIO_DEV_OFFS_CONFIG 5 /* dynamic */ | |
| 26 | ||
| 27 | #define VIRTIO_VQCONFIG_OFFS_TOKEN 0 /* 64 bits */ | |
| 28 | #define VIRTIO_VQCONFIG_OFFS_ADDRESS 8 /* 64 bits */ | |
| 29 | #define VIRTIO_VQCONFIG_OFFS_NUM 16 /* 16 bits */ | |
| 30 | #define VIRTIO_VQCONFIG_LEN 24 | |
| 31 | ||
| 32 | #define VIRTIO_RING_LEN (TARGET_PAGE_SIZE * 3) | |
| 33 | #define S390_DEVICE_PAGES 256 | |
| 34 | ||
| 35 | typedef struct VirtIOS390Device { | |
| 36 | DeviceState qdev; | |
| 37 | ram_addr_t dev_offs; | |
| 38 | ram_addr_t feat_offs; | |
| 39 | uint8_t feat_len; | |
| 40 | VirtIODevice *vdev; | |
| 41 | DriveInfo *dinfo; | |
| 42 | NICConf nic; | |
| 43 | } VirtIOS390Device; | |
| 44 | ||
| 45 | typedef struct VirtIOS390Bus { | |
| 46 | BusState bus; | |
| 47 | ||
| 48 | VirtIOS390Device *console; | |
| 49 | ram_addr_t dev_page; | |
| 50 | ram_addr_t dev_offs; | |
| 51 | ram_addr_t next_ring; | |
| 52 | } VirtIOS390Bus; | |
| 53 | ||
| 54 | ||
| 55 | extern void s390_virtio_device_update_status(VirtIOS390Device *dev); | |
| 56 | ||
| 57 | extern VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus); | |
| 58 | extern VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size); | |
| 59 | ||
| 60 | extern VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus, | |
| 61 | ram_addr_t mem, | |
| 62 | int *vq_num); | |
| 63 | extern VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, | |
| 64 | ram_addr_t mem); |