1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright (c) 2021-2022, NVIDIA CORPORATION & AFFILIATES.
3 */
4#ifndef _UAPI_IOMMUFD_TEST_H
5#define _UAPI_IOMMUFD_TEST_H
6
7#include <linux/types.h>
8#include <linux/iommufd.h>
9
10enum {
11 IOMMU_TEST_OP_ADD_RESERVED = 1,
12 IOMMU_TEST_OP_MOCK_DOMAIN,
13 IOMMU_TEST_OP_MD_CHECK_MAP,
14 IOMMU_TEST_OP_MD_CHECK_REFS,
15 IOMMU_TEST_OP_CREATE_ACCESS,
16 IOMMU_TEST_OP_DESTROY_ACCESS_PAGES,
17 IOMMU_TEST_OP_ACCESS_PAGES,
18 IOMMU_TEST_OP_ACCESS_RW,
19 IOMMU_TEST_OP_SET_TEMP_MEMORY_LIMIT,
20 IOMMU_TEST_OP_MOCK_DOMAIN_REPLACE,
21 IOMMU_TEST_OP_ACCESS_REPLACE_IOAS,
22 IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS,
23 IOMMU_TEST_OP_DIRTY,
24 IOMMU_TEST_OP_MD_CHECK_IOTLB,
25};
26
27enum {
28 MOCK_APERTURE_START = 1UL << 24,
29 MOCK_APERTURE_LAST = (1UL << 31) - 1,
30};
31
32enum {
33 MOCK_FLAGS_ACCESS_WRITE = 1 << 0,
34 MOCK_FLAGS_ACCESS_SYZ = 1 << 16,
35};
36
37enum {
38 MOCK_ACCESS_RW_WRITE = 1 << 0,
39 MOCK_ACCESS_RW_SLOW_PATH = 1 << 2,
40};
41
42enum {
43 MOCK_FLAGS_ACCESS_CREATE_NEEDS_PIN_PAGES = 1 << 0,
44};
45
46enum {
47 MOCK_FLAGS_DEVICE_NO_DIRTY = 1 << 0,
48 MOCK_FLAGS_DEVICE_HUGE_IOVA = 1 << 1,
49};
50
51enum {
52 MOCK_NESTED_DOMAIN_IOTLB_ID_MAX = 3,
53 MOCK_NESTED_DOMAIN_IOTLB_NUM = 4,
54};
55
56struct iommu_test_cmd {
57 __u32 size;
58 __u32 op;
59 __u32 id;
60 __u32 __reserved;
61 union {
62 struct {
63 __aligned_u64 start;
64 __aligned_u64 length;
65 } add_reserved;
66 struct {
67 __u32 out_stdev_id;
68 __u32 out_hwpt_id;
69 /* out_idev_id is the standard iommufd_bind object */
70 __u32 out_idev_id;
71 } mock_domain;
72 struct {
73 __u32 out_stdev_id;
74 __u32 out_hwpt_id;
75 __u32 out_idev_id;
76 /* Expand mock_domain to set mock device flags */
77 __u32 dev_flags;
78 } mock_domain_flags;
79 struct {
80 __u32 pt_id;
81 } mock_domain_replace;
82 struct {
83 __aligned_u64 iova;
84 __aligned_u64 length;
85 __aligned_u64 uptr;
86 } check_map;
87 struct {
88 __aligned_u64 length;
89 __aligned_u64 uptr;
90 __u32 refs;
91 } check_refs;
92 struct {
93 __u32 out_access_fd;
94 __u32 flags;
95 } create_access;
96 struct {
97 __u32 access_pages_id;
98 } destroy_access_pages;
99 struct {
100 __u32 flags;
101 __u32 out_access_pages_id;
102 __aligned_u64 iova;
103 __aligned_u64 length;
104 __aligned_u64 uptr;
105 } access_pages;
106 struct {
107 __aligned_u64 iova;
108 __aligned_u64 length;
109 __aligned_u64 uptr;
110 __u32 flags;
111 } access_rw;
112 struct {
113 __u32 limit;
114 } memory_limit;
115 struct {
116 __u32 ioas_id;
117 } access_replace_ioas;
118 struct {
119 __u32 flags;
120 __aligned_u64 iova;
121 __aligned_u64 length;
122 __aligned_u64 page_size;
123 __aligned_u64 uptr;
124 __aligned_u64 out_nr_dirty;
125 } dirty;
126 struct {
127 __u32 id;
128 __u32 iotlb;
129 } check_iotlb;
130 };
131 __u32 last;
132};
133#define IOMMU_TEST_CMD _IO(IOMMUFD_TYPE, IOMMUFD_CMD_BASE + 32)
134
135/* Mock structs for IOMMU_DEVICE_GET_HW_INFO ioctl */
136#define IOMMU_HW_INFO_TYPE_SELFTEST 0xfeedbeef
137#define IOMMU_HW_INFO_SELFTEST_REGVAL 0xdeadbeef
138
139struct iommu_test_hw_info {
140 __u32 flags;
141 __u32 test_reg;
142};
143
144/* Should not be equal to any defined value in enum iommu_hwpt_data_type */
145#define IOMMU_HWPT_DATA_SELFTEST 0xdead
146#define IOMMU_TEST_IOTLB_DEFAULT 0xbadbeef
147
148/**
149 * struct iommu_hwpt_selftest
150 *
151 * @iotlb: default mock iotlb value, IOMMU_TEST_IOTLB_DEFAULT
152 */
153struct iommu_hwpt_selftest {
154 __u32 iotlb;
155};
156
157/* Should not be equal to any defined value in enum iommu_hwpt_invalidate_data_type */
158#define IOMMU_HWPT_INVALIDATE_DATA_SELFTEST 0xdeadbeef
159#define IOMMU_HWPT_INVALIDATE_DATA_SELFTEST_INVALID 0xdadbeef
160
161/**
162 * struct iommu_hwpt_invalidate_selftest - Invalidation data for Mock driver
163 * (IOMMU_HWPT_INVALIDATE_DATA_SELFTEST)
164 * @flags: Invalidate flags
165 * @iotlb_id: Invalidate iotlb entry index
166 *
167 * If IOMMU_TEST_INVALIDATE_ALL is set in @flags, @iotlb_id will be ignored
168 */
169struct iommu_hwpt_invalidate_selftest {
170#define IOMMU_TEST_INVALIDATE_FLAG_ALL (1 << 0)
171 __u32 flags;
172 __u32 iotlb_id;
173};
174
175#endif
176

source code of linux/drivers/iommu/iommufd/iommufd_test.h