drivers/iommu/iommufd/iommufd_test.h

   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
  10 enum {
  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 };
  23
  24 enum {
  25         MOCK_APERTURE_START = 1UL << 24,
  26         MOCK_APERTURE_LAST = (1UL << 31) - 1,
  27 };
  28
  29 enum {
  30         MOCK_FLAGS_ACCESS_WRITE = 1 << 0,
  31         MOCK_FLAGS_ACCESS_SYZ = 1 << 16,
  32 };
  33
  34 enum {
  35         MOCK_ACCESS_RW_WRITE = 1 << 0,
  36         MOCK_ACCESS_RW_SLOW_PATH = 1 << 2,
  37 };
  38
  39 enum {
  40         MOCK_FLAGS_ACCESS_CREATE_NEEDS_PIN_PAGES = 1 << 0,
  41 };
  42
  43 struct iommu_test_cmd {
  44         __u32 size;
  45         __u32 op;
  46         __u32 id;
  47         __u32 __reserved;
  48         union {
  49                 struct {
  50                         __aligned_u64 start;
  51                         __aligned_u64 length;
  52                 } add_reserved;
  53                 struct {
  54                         __u32 out_stdev_id;
  55                         __u32 out_hwpt_id;
  56                         /* out_idev_id is the standard iommufd_bind object */
  57                         __u32 out_idev_id;
  58                 } mock_domain;
  59                 struct {
  60                         __u32 pt_id;
  61                 } mock_domain_replace;
  62                 struct {
  63                         __aligned_u64 iova;
  64                         __aligned_u64 length;
  65                         __aligned_u64 uptr;
  66                 } check_map;
  67                 struct {
  68                         __aligned_u64 length;
  69                         __aligned_u64 uptr;
  70                         __u32 refs;
  71                 } check_refs;
  72                 struct {
  73                         __u32 out_access_fd;
  74                         __u32 flags;
  75                 } create_access;
  76                 struct {
  77                         __u32 access_pages_id;
  78                 } destroy_access_pages;
  79                 struct {
  80                         __u32 flags;
  81                         __u32 out_access_pages_id;
  82                         __aligned_u64 iova;
  83                         __aligned_u64 length;
  84                         __aligned_u64 uptr;
  85                 } access_pages;
  86                 struct {
  87                         __aligned_u64 iova;
  88                         __aligned_u64 length;
  89                         __aligned_u64 uptr;
  90                         __u32 flags;
  91                 } access_rw;
  92                 struct {
  93                         __u32 limit;
  94                 } memory_limit;
  95                 struct {
  96                         __u32 ioas_id;
  97                 } access_replace_ioas;
  98         };
  99         __u32 last;
 100 };
 101 #define IOMMU_TEST_CMD _IO(IOMMUFD_TYPE, IOMMUFD_CMD_BASE + 32)
 102
 103 /* Mock structs for IOMMU_DEVICE_GET_HW_INFO ioctl */
 104 #define IOMMU_HW_INFO_TYPE_SELFTEST     0xfeedbeef
 105 #define IOMMU_HW_INFO_SELFTEST_REGVAL   0xdeadbeef
 106
 107 struct iommu_test_hw_info {
 108         __u32 flags;
 109         __u32 test_reg;
 110 };
 111
 112 #endif