vfio_user.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __UM_VFIO_USER_H
 3#define __UM_VFIO_USER_H
 4
 5struct uml_vfio_user_device {
 6	int device;
 7
 8	struct {
 9		uint64_t size;
10		uint64_t offset;
11	} *region;
12	int num_regions;
13
14	int32_t *irqfd;
15	int irq_count;
16};
17
18int uml_vfio_user_open_container(void);
19int uml_vfio_user_setup_iommu(int container);
20
21int uml_vfio_user_get_group_id(const char *device);
22int uml_vfio_user_open_group(int group_id);
23int uml_vfio_user_set_container(int container, int group);
24int uml_vfio_user_unset_container(int container, int group);
25
26int uml_vfio_user_setup_device(struct uml_vfio_user_device *dev,
27			       int group, const char *device);
28void uml_vfio_user_teardown_device(struct uml_vfio_user_device *dev);
29
30int uml_vfio_user_activate_irq(struct uml_vfio_user_device *dev, int index);
31void uml_vfio_user_deactivate_irq(struct uml_vfio_user_device *dev, int index);
32int uml_vfio_user_update_irqs(struct uml_vfio_user_device *dev);
33
34int uml_vfio_user_cfgspace_read(struct uml_vfio_user_device *dev,
35				unsigned int offset, void *buf, int size);
36int uml_vfio_user_cfgspace_write(struct uml_vfio_user_device *dev,
37				 unsigned int offset, const void *buf, int size);
38
39int uml_vfio_user_bar_read(struct uml_vfio_user_device *dev, int bar,
40			   unsigned int offset, void *buf, int size);
41int uml_vfio_user_bar_write(struct uml_vfio_user_device *dev, int bar,
42			    unsigned int offset, const void *buf, int size);
43
44#endif /* __UM_VFIO_USER_H */