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21#ifndef HW_VFIO_VFIO_COMMON_H
22#define HW_VFIO_VFIO_COMMON_H
23
24#include "qemu-common.h"
25#include "exec/memory.h"
26#include "qemu/queue.h"
27#include "qemu/notify.h"
28#include "ui/console.h"
29#include "hw/display/ramfb.h"
30#ifdef CONFIG_LINUX
31#include <linux/vfio.h>
32#endif
33
34#define VFIO_MSG_PREFIX "vfio %s: "
35
36enum {
37 VFIO_DEVICE_TYPE_PCI = 0,
38 VFIO_DEVICE_TYPE_PLATFORM = 1,
39 VFIO_DEVICE_TYPE_CCW = 2,
40 VFIO_DEVICE_TYPE_AP = 3,
41};
42
43typedef struct VFIOMmap {
44 MemoryRegion mem;
45 void *mmap;
46 off_t offset;
47 size_t size;
48} VFIOMmap;
49
50typedef struct VFIORegion {
51 struct VFIODevice *vbasedev;
52 off_t fd_offset;
53 MemoryRegion *mem;
54 size_t size;
55 uint32_t flags;
56 uint32_t nr_mmaps;
57 VFIOMmap *mmaps;
58 uint8_t nr;
59} VFIORegion;
60
61typedef struct VFIOAddressSpace {
62 AddressSpace *as;
63 QLIST_HEAD(, VFIOContainer) containers;
64 QLIST_ENTRY(VFIOAddressSpace) list;
65} VFIOAddressSpace;
66
67struct VFIOGroup;
68
69typedef struct VFIOContainer {
70 VFIOAddressSpace *space;
71 int fd;
72 MemoryListener listener;
73 MemoryListener prereg_listener;
74 unsigned iommu_type;
75 int error;
76 bool initialized;
77 unsigned long pgsizes;
78
79
80
81
82
83 QLIST_HEAD(, VFIOGuestIOMMU) giommu_list;
84 QLIST_HEAD(, VFIOHostDMAWindow) hostwin_list;
85 QLIST_HEAD(, VFIOGroup) group_list;
86 QLIST_ENTRY(VFIOContainer) next;
87} VFIOContainer;
88
89typedef struct VFIOGuestIOMMU {
90 VFIOContainer *container;
91 IOMMUMemoryRegion *iommu;
92 hwaddr iommu_offset;
93 IOMMUNotifier n;
94 QLIST_ENTRY(VFIOGuestIOMMU) giommu_next;
95} VFIOGuestIOMMU;
96
97typedef struct VFIOHostDMAWindow {
98 hwaddr min_iova;
99 hwaddr max_iova;
100 uint64_t iova_pgsizes;
101 QLIST_ENTRY(VFIOHostDMAWindow) hostwin_next;
102} VFIOHostDMAWindow;
103
104typedef struct VFIODeviceOps VFIODeviceOps;
105
106typedef struct VFIODevice {
107 QLIST_ENTRY(VFIODevice) next;
108 struct VFIOGroup *group;
109 char *sysfsdev;
110 char *name;
111 DeviceState *dev;
112 int fd;
113 int type;
114 bool reset_works;
115 bool needs_reset;
116 bool no_mmap;
117 bool balloon_allowed;
118 VFIODeviceOps *ops;
119 unsigned int num_irqs;
120 unsigned int num_regions;
121 unsigned int flags;
122} VFIODevice;
123
124struct VFIODeviceOps {
125 void (*vfio_compute_needs_reset)(VFIODevice *vdev);
126 int (*vfio_hot_reset_multi)(VFIODevice *vdev);
127 void (*vfio_eoi)(VFIODevice *vdev);
128};
129
130typedef struct VFIOGroup {
131 int fd;
132 int groupid;
133 VFIOContainer *container;
134 QLIST_HEAD(, VFIODevice) device_list;
135 QLIST_ENTRY(VFIOGroup) next;
136 QLIST_ENTRY(VFIOGroup) container_next;
137 bool balloon_allowed;
138} VFIOGroup;
139
140typedef struct VFIODMABuf {
141 QemuDmaBuf buf;
142 uint32_t pos_x, pos_y, pos_updates;
143 uint32_t hot_x, hot_y, hot_updates;
144 int dmabuf_id;
145 QTAILQ_ENTRY(VFIODMABuf) next;
146} VFIODMABuf;
147
148typedef struct VFIODisplay {
149 QemuConsole *con;
150 RAMFBState *ramfb;
151 struct vfio_region_info *edid_info;
152 struct vfio_region_gfx_edid *edid_regs;
153 uint8_t *edid_blob;
154 QEMUTimer *edid_link_timer;
155 struct {
156 VFIORegion buffer;
157 DisplaySurface *surface;
158 } region;
159 struct {
160 QTAILQ_HEAD(, VFIODMABuf) bufs;
161 VFIODMABuf *primary;
162 VFIODMABuf *cursor;
163 } dmabuf;
164} VFIODisplay;
165
166void vfio_put_base_device(VFIODevice *vbasedev);
167void vfio_disable_irqindex(VFIODevice *vbasedev, int index);
168void vfio_unmask_single_irqindex(VFIODevice *vbasedev, int index);
169void vfio_mask_single_irqindex(VFIODevice *vbasedev, int index);
170void vfio_region_write(void *opaque, hwaddr addr,
171 uint64_t data, unsigned size);
172uint64_t vfio_region_read(void *opaque,
173 hwaddr addr, unsigned size);
174int vfio_region_setup(Object *obj, VFIODevice *vbasedev, VFIORegion *region,
175 int index, const char *name);
176int vfio_region_mmap(VFIORegion *region);
177void vfio_region_mmaps_set_enabled(VFIORegion *region, bool enabled);
178void vfio_region_exit(VFIORegion *region);
179void vfio_region_finalize(VFIORegion *region);
180void vfio_reset_handler(void *opaque);
181VFIOGroup *vfio_get_group(int groupid, AddressSpace *as, Error **errp);
182void vfio_put_group(VFIOGroup *group);
183int vfio_get_device(VFIOGroup *group, const char *name,
184 VFIODevice *vbasedev, Error **errp);
185
186extern const MemoryRegionOps vfio_region_ops;
187typedef QLIST_HEAD(VFIOGroupList, VFIOGroup) VFIOGroupList;
188extern VFIOGroupList vfio_group_list;
189
190#ifdef CONFIG_LINUX
191int vfio_get_region_info(VFIODevice *vbasedev, int index,
192 struct vfio_region_info **info);
193int vfio_get_dev_region_info(VFIODevice *vbasedev, uint32_t type,
194 uint32_t subtype, struct vfio_region_info **info);
195bool vfio_has_region_cap(VFIODevice *vbasedev, int region, uint16_t cap_type);
196struct vfio_info_cap_header *
197vfio_get_region_info_cap(struct vfio_region_info *info, uint16_t id);
198#endif
199extern const MemoryListener vfio_prereg_listener;
200
201int vfio_spapr_create_window(VFIOContainer *container,
202 MemoryRegionSection *section,
203 hwaddr *pgsize);
204int vfio_spapr_remove_window(VFIOContainer *container,
205 hwaddr offset_within_address_space);
206
207#endif
208