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/*
* VFIO BASE CONTAINER
*
* Copyright (C) 2023 Intel Corporation.
* Copyright Red Hat, Inc. 2023
*
* Authors: Yi Liu <yi.l.liu@intel.com>
* Eric Auger <eric.auger@redhat.com>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef HW_VFIO_VFIO_CONTAINER_BASE_H
#define HW_VFIO_VFIO_CONTAINER_BASE_H
#include "exec/memory.h"
typedef struct VFIODevice VFIODevice;
typedef struct VFIOIOMMUOps VFIOIOMMUOps;
typedef struct {
unsigned long *bitmap;
hwaddr size;
hwaddr pages;
} VFIOBitmap;
/*
* This is the base object for vfio container backends
*/
typedef struct VFIOContainerBase {
const VFIOIOMMUOps *ops;
} VFIOContainerBase;
int vfio_container_dma_map(VFIOContainerBase *bcontainer,
hwaddr iova, ram_addr_t size,
void *vaddr, bool readonly);
int vfio_container_dma_unmap(VFIOContainerBase *bcontainer,
hwaddr iova, ram_addr_t size,
IOMMUTLBEntry *iotlb);
void vfio_container_init(VFIOContainerBase *bcontainer,
const VFIOIOMMUOps *ops);
void vfio_container_destroy(VFIOContainerBase *bcontainer);
struct VFIOIOMMUOps {
/* basic feature */
int (*dma_map)(VFIOContainerBase *bcontainer,
hwaddr iova, ram_addr_t size,
void *vaddr, bool readonly);
int (*dma_unmap)(VFIOContainerBase *bcontainer,
hwaddr iova, ram_addr_t size,
IOMMUTLBEntry *iotlb);
int (*attach_device)(const char *name, VFIODevice *vbasedev,
AddressSpace *as, Error **errp);
void (*detach_device)(VFIODevice *vbasedev);
/* migration feature */
int (*set_dirty_page_tracking)(VFIOContainerBase *bcontainer, bool start);
int (*query_dirty_bitmap)(VFIOContainerBase *bcontainer, VFIOBitmap *vbmap,
hwaddr iova, hwaddr size);
};
#endif /* HW_VFIO_VFIO_CONTAINER_BASE_H */
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