[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-net.h"
#include "virtio-serial.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 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)

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;
    BlockConf block;
    char *block_serial;
    NICConf nic;
    uint32_t host_features;
    virtio_serial_conf serial;
    virtio_net_conf net;
};

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