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/*-
* Copyright (c) 2011 NetApp, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _VDEV_H_
#define _VDEV_H_
typedef enum {
BYTE = 1,
WORD = 2,
DWORD = 4,
QWORD = 8,
} opsize_t;
typedef enum {
MMIO_READ = 1,
MMIO_WRITE = 2,
} region_attr_t;
struct io_region {
uint64_t base;
uint64_t len;
region_attr_t attr;
int vcpu;
};
typedef int (*vdev_init_t)(void* dev);
typedef int (*vdev_reset_t)(void* dev);
typedef int (*vdev_halt_t)(void* dev);
typedef int (*vdev_memread_t)(void* dev, uint64_t gpa, opsize_t size, uint64_t *data);
typedef int (*vdev_memwrite_t)(void* dev, uint64_t gpa, opsize_t size, uint64_t data);
struct vdev_ops {
const char *name;
vdev_init_t init;
vdev_reset_t reset;
vdev_halt_t halt;
vdev_memread_t memread;
vdev_memwrite_t memwrite;
};
void vdev_vm_init(void);
void vdev_vm_cleanup(void);
int vdev_register(struct vdev_ops *ops, void *dev);
void vdev_unregister(void *dev);
int vdev_register_region(struct vdev_ops *ops, void *dev, struct io_region *io);
void vdev_unregister_region(void *dev, struct io_region *io);
int vdev_init(void);
int vdev_reset(void);
int vdev_halt(void);
int vdev_memread(uint64_t gpa, opsize_t size, uint64_t *data);
int vdev_memwrite(uint64_t gpa, opsize_t size, uint64_t data);
#endif /* _VDEV_H_ */
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