Yaya48
cf256aa081
Upstream: https://gitlab.com/qemu-project/qemu.git Upstream-Commit: d2e570cc0f97b936902a5b1b86b73c0f5998b475
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
/*
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* VFIO region
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*
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* Copyright Red Hat, Inc. 2025
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef HW_VFIO_REGION_H
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#define HW_VFIO_REGION_H
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#include "system/memory.h"
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typedef struct VFIOMmap {
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MemoryRegion mem;
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void *mmap;
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off_t offset;
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size_t size;
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} VFIOMmap;
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typedef struct VFIODevice VFIODevice;
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typedef struct VFIORegion {
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struct VFIODevice *vbasedev;
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off_t fd_offset; /* offset of region within device fd */
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MemoryRegion *mem; /* slow, read/write access */
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size_t size;
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uint32_t flags; /* VFIO region flags (rd/wr/mmap) */
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uint32_t nr_mmaps;
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VFIOMmap *mmaps;
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uint8_t nr; /* cache the region number for debug */
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bool post_wr; /* writes can be posted */
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} VFIORegion;
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void vfio_region_write(void *opaque, hwaddr addr,
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uint64_t data, unsigned size);
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uint64_t vfio_region_read(void *opaque,
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hwaddr addr, unsigned size);
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int vfio_region_setup(Object *obj, VFIODevice *vbasedev, VFIORegion *region,
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int index, const char *name, Error **errp);
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int vfio_region_mmap(VFIORegion *region);
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void vfio_region_mmaps_set_enabled(VFIORegion *region, bool enabled);
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void vfio_region_exit(VFIORegion *region);
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void vfio_region_finalize(VFIORegion *region);
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#endif /* HW_VFIO_REGION_H */
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