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Alexander Graff3304ee2009-12-05 12:44:27 +01001/*
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 */
Paolo Bonzinicb9c3772012-12-06 12:15:58 +010019#ifndef HW_S390_VIRTIO_BUS_H
20#define HW_S390_VIRTIO_BUS_H 1
Alexander Graff3304ee2009-12-05 12:44:27 +010021
Paolo Bonzini12c56742012-05-16 12:54:05 +020022#include "virtio-blk.h"
Alexander Graf6c332862010-11-17 13:01:04 +010023#include "virtio-net.h"
Amit Shah16c915b2012-06-20 12:29:32 +053024#include "virtio-rng.h"
Alexander Graf6be9b412011-03-29 15:29:31 +020025#include "virtio-serial.h"
Stefan Hajnoczi973abc72011-02-11 08:40:59 +000026#include "virtio-scsi.h"
Alexander Graf6c332862010-11-17 13:01:04 +010027
Alexander Graff3304ee2009-12-05 12:44:27 +010028#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)
Jens Freimann4170aea2012-04-26 09:03:36 +000041#define VIRTIO_VRING_AVAIL_IDX_OFFS 2
42#define VIRTIO_VRING_USED_IDX_OFFS 2
Alexander Grafd1ff9032011-04-13 10:55:11 +020043#define S390_DEVICE_PAGES 512
Alexander Graff3304ee2009-12-05 12:44:27 +010044
Alexander Graf7fa41e52010-08-23 18:58:34 +020045#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
Anthony Liguori39bffca2011-12-07 21:34:16 -060050#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
Anthony Liguori0d936922012-05-02 09:00:20 +020058#define TYPE_S390_VIRTIO_BUS "s390-virtio-bus"
59#define S390_VIRTIO_BUS(obj) \
60 OBJECT_CHECK(VirtIOS390Bus, (obj), TYPE_S390_VIRTIO_BUS)
61
Anthony Liguori39bffca2011-12-07 21:34:16 -060062typedef struct VirtIOS390Device VirtIOS390Device;
63
64typedef struct VirtIOS390DeviceClass {
65 DeviceClass qdev;
66 int (*init)(VirtIOS390Device *dev);
67} VirtIOS390DeviceClass;
68
69struct VirtIOS390Device {
Alexander Graff3304ee2009-12-05 12:44:27 +010070 DeviceState qdev;
71 ram_addr_t dev_offs;
72 ram_addr_t feat_offs;
73 uint8_t feat_len;
74 VirtIODevice *vdev;
Paolo Bonzini12c56742012-05-16 12:54:05 +020075 VirtIOBlkConf blk;
Alexander Graff3304ee2009-12-05 12:44:27 +010076 NICConf nic;
Michael S. Tsirkin81725392010-01-10 13:52:53 +020077 uint32_t host_features;
Alexander Graf6be9b412011-03-29 15:29:31 +020078 virtio_serial_conf serial;
Alex Williamsonf0c07c72010-09-02 09:00:50 -060079 virtio_net_conf net;
Stefan Hajnoczi973abc72011-02-11 08:40:59 +000080 VirtIOSCSIConf scsi;
Amit Shah16c915b2012-06-20 12:29:32 +053081 VirtIORNGConf rng;
Anthony Liguori39bffca2011-12-07 21:34:16 -060082};
Alexander Graff3304ee2009-12-05 12:44:27 +010083
84typedef 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
Blue Swirl64b85a82011-01-23 16:21:20 +000094void s390_virtio_device_update_status(VirtIOS390Device *dev);
Alexander Graff3304ee2009-12-05 12:44:27 +010095
Blue Swirl64b85a82011-01-23 16:21:20 +000096VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus);
97VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size);
Alexander Graff3304ee2009-12-05 12:44:27 +010098
Blue Swirl64b85a82011-01-23 16:21:20 +000099VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
100 ram_addr_t mem, int *vq_num);
101VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem);
102void s390_virtio_device_sync(VirtIOS390Device *dev);
Jens Freimann4170aea2012-04-26 09:03:36 +0000103void s390_virtio_reset_idx(VirtIOS390Device *dev);
104
Paolo Bonzinicb9c3772012-12-06 12:15:58 +0100105
106#endif