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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253/* SPDX-License-Identifier: GPL-2.0 */#ifndef _LINUX_VHOST_IOTLB_H#define _LINUX_VHOST_IOTLB_H
#include <linux/interval_tree_generic.h>
struct vhost_iotlb_map { struct rb_node rb; struct list_head link; u64 start; u64 last; u64 size; u64 addr;#define VHOST_MAP_RO 0x1#define VHOST_MAP_WO 0x2#define VHOST_MAP_RW 0x3 u32 perm; u32 flags_padding; u64 __subtree_last; void *opaque;};
#define VHOST_IOTLB_FLAG_RETIRE 0x1
struct vhost_iotlb { struct rb_root_cached root; struct list_head list; unsigned int limit; unsigned int nmaps; unsigned int flags;};
int vhost_iotlb_add_range_ctx(struct vhost_iotlb *iotlb, u64 start, u64 last, u64 addr, unsigned int perm, void *opaque);int vhost_iotlb_add_range(struct vhost_iotlb *iotlb, u64 start, u64 last, u64 addr, unsigned int perm);void vhost_iotlb_del_range(struct vhost_iotlb *iotlb, u64 start, u64 last);
void vhost_iotlb_init(struct vhost_iotlb *iotlb, unsigned int limit, unsigned int flags);struct vhost_iotlb *vhost_iotlb_alloc(unsigned int limit, unsigned int flags);void vhost_iotlb_free(struct vhost_iotlb *iotlb);void vhost_iotlb_reset(struct vhost_iotlb *iotlb);
struct vhost_iotlb_map *vhost_iotlb_itree_first(struct vhost_iotlb *iotlb, u64 start, u64 last);struct vhost_iotlb_map *vhost_iotlb_itree_next(struct vhost_iotlb_map *map, u64 start, u64 last);
void vhost_iotlb_map_free(struct vhost_iotlb *iotlb, struct vhost_iotlb_map *map);#endif