[mirror_qemu.git] / hw / s390-virtio-bus.h

/*
 * QEMU S390x VirtIO BUS definitions
 *
 * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */

#include "virtio-blk.h"
#include "virtio-net.h"
#include "virtio-serial.h"
#include "virtio-scsi.h"

#define VIRTIO_DEV_OFFS_TYPE		0	/* 8 bits */
#define VIRTIO_DEV_OFFS_NUM_VQ		1	/* 8 bits */
#define VIRTIO_DEV_OFFS_FEATURE_LEN	2	/* 8 bits */
#define VIRTIO_DEV_OFFS_CONFIG_LEN	3	/* 8 bits */
#define VIRTIO_DEV_OFFS_STATUS		4	/* 8 bits */
#define VIRTIO_DEV_OFFS_CONFIG		5	/* dynamic */

#define VIRTIO_VQCONFIG_OFFS_TOKEN	0	/* 64 bits */
#define VIRTIO_VQCONFIG_OFFS_ADDRESS	8	/* 64 bits */
#define VIRTIO_VQCONFIG_OFFS_NUM	16	/* 16 bits */
#define VIRTIO_VQCONFIG_LEN		24

#define VIRTIO_RING_LEN			(TARGET_PAGE_SIZE * 3)
#define VIRTIO_VRING_AVAIL_IDX_OFFS 2
#define VIRTIO_VRING_USED_IDX_OFFS 2
#define S390_DEVICE_PAGES		512

#define VIRTIO_PARAM_MASK               0xff
#define VIRTIO_PARAM_VRING_INTERRUPT    0x0
#define VIRTIO_PARAM_CONFIG_CHANGED     0x1
#define VIRTIO_PARAM_DEV_ADD            0x2

#define TYPE_VIRTIO_S390_DEVICE "virtio-s390-device"
#define VIRTIO_S390_DEVICE(obj) \
     OBJECT_CHECK(VirtIOS390Device, (obj), TYPE_VIRTIO_S390_DEVICE)
#define VIRTIO_S390_DEVICE_CLASS(klass) \
     OBJECT_CLASS_CHECK(VirtIOS390DeviceClass, (klass), TYPE_VIRTIO_S390_DEVICE)
#define VIRTIO_S390_DEVICE_GET_CLASS(obj) \
     OBJECT_GET_CLASS(VirtIOS390DeviceClass, (obj), TYPE_VIRTIO_S390_DEVICE)

#define TYPE_S390_VIRTIO_BUS "s390-virtio-bus"
#define S390_VIRTIO_BUS(obj) \
     OBJECT_CHECK(VirtIOS390Bus, (obj), TYPE_S390_VIRTIO_BUS)

typedef struct VirtIOS390Device VirtIOS390Device;

typedef struct VirtIOS390DeviceClass {
    DeviceClass qdev;
    int (*init)(VirtIOS390Device *dev);
} VirtIOS390DeviceClass;

struct VirtIOS390Device {
    DeviceState qdev;
    ram_addr_t dev_offs;
    ram_addr_t feat_offs;
    uint8_t feat_len;
    VirtIODevice *vdev;
    VirtIOBlkConf blk;
    NICConf nic;
    uint32_t host_features;
    virtio_serial_conf serial;
    virtio_net_conf net;
    VirtIOSCSIConf scsi;
};

typedef struct VirtIOS390Bus {
    BusState bus;

    VirtIOS390Device *console;
    ram_addr_t dev_page;
    ram_addr_t dev_offs;
    ram_addr_t next_ring;
} VirtIOS390Bus;


void s390_virtio_device_update_status(VirtIOS390Device *dev);

VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus);
VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size);

VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
                                             ram_addr_t mem, int *vq_num);
VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem);
void s390_virtio_device_sync(VirtIOS390Device *dev);
void s390_virtio_reset_idx(VirtIOS390Device *dev);
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
12c5674b	20	#include "virtio-blk.h"
6c33286a	21	#include "virtio-net.h"
6be9b414	22	#include "virtio-serial.h"
973abc7f	23	#include "virtio-scsi.h"
6c33286a	24
f3304eea AG	25	#define VIRTIO_DEV_OFFS_TYPE 0 /* 8 bits */
	26	#define VIRTIO_DEV_OFFS_NUM_VQ 1 /* 8 bits */
	27	#define VIRTIO_DEV_OFFS_FEATURE_LEN 2 /* 8 bits */
	28	#define VIRTIO_DEV_OFFS_CONFIG_LEN 3 /* 8 bits */
	29	#define VIRTIO_DEV_OFFS_STATUS 4 /* 8 bits */
	30	#define VIRTIO_DEV_OFFS_CONFIG 5 /* dynamic */
	31
	32	#define VIRTIO_VQCONFIG_OFFS_TOKEN 0 /* 64 bits */
	33	#define VIRTIO_VQCONFIG_OFFS_ADDRESS 8 /* 64 bits */
	34	#define VIRTIO_VQCONFIG_OFFS_NUM 16 /* 16 bits */
	35	#define VIRTIO_VQCONFIG_LEN 24
	36
	37	#define VIRTIO_RING_LEN (TARGET_PAGE_SIZE * 3)
4170aea1 JF	38	#define VIRTIO_VRING_AVAIL_IDX_OFFS 2
4170aea1 JF	39	#define VIRTIO_VRING_USED_IDX_OFFS 2
d1ff903c	40	#define S390_DEVICE_PAGES 512
f3304eea	41
7fa41e53 AG	42	#define VIRTIO_PARAM_MASK 0xff
	43	#define VIRTIO_PARAM_VRING_INTERRUPT 0x0
	44	#define VIRTIO_PARAM_CONFIG_CHANGED 0x1
	45	#define VIRTIO_PARAM_DEV_ADD 0x2
	46
39bffca2 AL	47	#define TYPE_VIRTIO_S390_DEVICE "virtio-s390-device"
	48	#define VIRTIO_S390_DEVICE(obj) \
	49	OBJECT_CHECK(VirtIOS390Device, (obj), TYPE_VIRTIO_S390_DEVICE)
	50	#define VIRTIO_S390_DEVICE_CLASS(klass) \
	51	OBJECT_CLASS_CHECK(VirtIOS390DeviceClass, (klass), TYPE_VIRTIO_S390_DEVICE)
	52	#define VIRTIO_S390_DEVICE_GET_CLASS(obj) \
	53	OBJECT_GET_CLASS(VirtIOS390DeviceClass, (obj), TYPE_VIRTIO_S390_DEVICE)
	54
0d936928 AL	55	#define TYPE_S390_VIRTIO_BUS "s390-virtio-bus"
	56	#define S390_VIRTIO_BUS(obj) \
	57	OBJECT_CHECK(VirtIOS390Bus, (obj), TYPE_S390_VIRTIO_BUS)
	58
39bffca2 AL	59	typedef struct VirtIOS390Device VirtIOS390Device;
	60
	61	typedef struct VirtIOS390DeviceClass {
	62	DeviceClass qdev;
	63	int (init)(VirtIOS390Device dev);
	64	} VirtIOS390DeviceClass;
	65
	66	struct VirtIOS390Device {
f3304eea AG	67	DeviceState qdev;
	68	ram_addr_t dev_offs;
	69	ram_addr_t feat_offs;
	70	uint8_t feat_len;
	71	VirtIODevice *vdev;
12c5674b	72	VirtIOBlkConf blk;
f3304eea	73	NICConf nic;
8172539d	74	uint32_t host_features;
6be9b414	75	virtio_serial_conf serial;
f0c07c7c	76	virtio_net_conf net;
973abc7f	77	VirtIOSCSIConf scsi;
39bffca2	78	};
f3304eea AG	79
	80	typedef struct VirtIOS390Bus {
	81	BusState bus;
	82
	83	VirtIOS390Device *console;
	84	ram_addr_t dev_page;
	85	ram_addr_t dev_offs;
	86	ram_addr_t next_ring;
	87	} VirtIOS390Bus;
	88
	89
64b85a8f	90	void s390_virtio_device_update_status(VirtIOS390Device *dev);
f3304eea	91
64b85a8f BS	92	VirtIOS390Device s390_virtio_bus_console(VirtIOS390Bus bus);
64b85a8f BS	93	VirtIOS390Bus s390_virtio_bus_init(ram_addr_t ram_size);
f3304eea	94
64b85a8f BS	95	VirtIOS390Device s390_virtio_bus_find_vring(VirtIOS390Bus bus,
	96	ram_addr_t mem, int *vq_num);
	97	VirtIOS390Device s390_virtio_bus_find_mem(VirtIOS390Bus bus, ram_addr_t mem);
	98	void s390_virtio_device_sync(VirtIOS390Device *dev);
4170aea1 JF	99	void s390_virtio_reset_idx(VirtIOS390Device *dev);
4170aea1 JF	100