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a9af47e382
Add a new test ioctl for simulating the dirty IOVAs in the mock domain, and implement the mock iommu domain ops that get the dirty tracking supported. The selftest exercises the usual main workflow of: 1) Setting dirty tracking from the iommu domain 2) Read and clear dirty IOPTEs Different fixtures will test different IOVA range sizes, that exercise corner cases of the bitmaps. Link: https://lore.kernel.org/r/20231024135109.73787-17-joao.m.martins@oracle.com Signed-off-by: Joao Martins <joao.m.martins@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
134 lines
2.6 KiB
C
134 lines
2.6 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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IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS,
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IOMMU_TEST_OP_DIRTY,
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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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enum {
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MOCK_FLAGS_DEVICE_NO_DIRTY = 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 out_stdev_id;
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__u32 out_hwpt_id;
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__u32 out_idev_id;
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/* Expand mock_domain to set mock device flags */
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__u32 dev_flags;
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} mock_domain_flags;
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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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struct {
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__u32 flags;
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__aligned_u64 iova;
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__aligned_u64 length;
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__aligned_u64 page_size;
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__aligned_u64 uptr;
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__aligned_u64 out_nr_dirty;
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} dirty;
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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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