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af4fde93c3
Add a mock_domain_hw_info function and an iommu_test_hw_info data structure. This allows to test the IOMMU_GET_HW_INFO ioctl passing the test_reg value for the mock_dev. Link: https://lore.kernel.org/r/20230818101033.4100-5-yi.l.liu@intel.com Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Yi Liu <yi.l.liu@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
113 lines
2.2 KiB
C
113 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) 2021-2022, NVIDIA CORPORATION & AFFILIATES.
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*/
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#ifndef _UAPI_IOMMUFD_TEST_H
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#define _UAPI_IOMMUFD_TEST_H
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#include <linux/types.h>
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#include <linux/iommufd.h>
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enum {
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IOMMU_TEST_OP_ADD_RESERVED = 1,
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IOMMU_TEST_OP_MOCK_DOMAIN,
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IOMMU_TEST_OP_MD_CHECK_MAP,
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IOMMU_TEST_OP_MD_CHECK_REFS,
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IOMMU_TEST_OP_CREATE_ACCESS,
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IOMMU_TEST_OP_DESTROY_ACCESS_PAGES,
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IOMMU_TEST_OP_ACCESS_PAGES,
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IOMMU_TEST_OP_ACCESS_RW,
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IOMMU_TEST_OP_SET_TEMP_MEMORY_LIMIT,
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IOMMU_TEST_OP_MOCK_DOMAIN_REPLACE,
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IOMMU_TEST_OP_ACCESS_REPLACE_IOAS,
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};
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enum {
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MOCK_APERTURE_START = 1UL << 24,
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MOCK_APERTURE_LAST = (1UL << 31) - 1,
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};
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enum {
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MOCK_FLAGS_ACCESS_WRITE = 1 << 0,
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MOCK_FLAGS_ACCESS_SYZ = 1 << 16,
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};
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enum {
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MOCK_ACCESS_RW_WRITE = 1 << 0,
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MOCK_ACCESS_RW_SLOW_PATH = 1 << 2,
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};
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enum {
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MOCK_FLAGS_ACCESS_CREATE_NEEDS_PIN_PAGES = 1 << 0,
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};
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struct iommu_test_cmd {
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__u32 size;
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__u32 op;
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__u32 id;
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__u32 __reserved;
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union {
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struct {
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__aligned_u64 start;
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__aligned_u64 length;
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} add_reserved;
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struct {
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__u32 out_stdev_id;
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__u32 out_hwpt_id;
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/* out_idev_id is the standard iommufd_bind object */
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__u32 out_idev_id;
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} mock_domain;
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struct {
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__u32 pt_id;
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} mock_domain_replace;
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struct {
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__aligned_u64 iova;
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__aligned_u64 length;
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__aligned_u64 uptr;
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} check_map;
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struct {
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__aligned_u64 length;
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__aligned_u64 uptr;
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__u32 refs;
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} check_refs;
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struct {
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__u32 out_access_fd;
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__u32 flags;
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} create_access;
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struct {
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__u32 access_pages_id;
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} destroy_access_pages;
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struct {
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__u32 flags;
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__u32 out_access_pages_id;
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__aligned_u64 iova;
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__aligned_u64 length;
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__aligned_u64 uptr;
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} access_pages;
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struct {
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__aligned_u64 iova;
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__aligned_u64 length;
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__aligned_u64 uptr;
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__u32 flags;
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} access_rw;
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struct {
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__u32 limit;
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} memory_limit;
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struct {
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__u32 ioas_id;
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} access_replace_ioas;
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};
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__u32 last;
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};
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#define IOMMU_TEST_CMD _IO(IOMMUFD_TYPE, IOMMUFD_CMD_BASE + 32)
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/* Mock structs for IOMMU_DEVICE_GET_HW_INFO ioctl */
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#define IOMMU_HW_INFO_TYPE_SELFTEST 0xfeedbeef
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#define IOMMU_HW_INFO_SELFTEST_REGVAL 0xdeadbeef
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struct iommu_test_hw_info {
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__u32 flags;
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__u32 test_reg;
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};
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#endif
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