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-rw-r--r--drivers/iommu/iommufd/iommufd_test.h112
1 files changed, 112 insertions, 0 deletions
diff --git a/drivers/iommu/iommufd/iommufd_test.h b/drivers/iommu/iommufd/iommufd_test.h
new file mode 100644
index 0000000000..3f3644375b
--- /dev/null
+++ b/drivers/iommu/iommufd/iommufd_test.h
@@ -0,0 +1,112 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2021-2022, NVIDIA CORPORATION & AFFILIATES.
+ */
+#ifndef _UAPI_IOMMUFD_TEST_H
+#define _UAPI_IOMMUFD_TEST_H
+
+#include <linux/types.h>
+#include <linux/iommufd.h>
+
+enum {
+ IOMMU_TEST_OP_ADD_RESERVED = 1,
+ IOMMU_TEST_OP_MOCK_DOMAIN,
+ IOMMU_TEST_OP_MD_CHECK_MAP,
+ IOMMU_TEST_OP_MD_CHECK_REFS,
+ IOMMU_TEST_OP_CREATE_ACCESS,
+ IOMMU_TEST_OP_DESTROY_ACCESS_PAGES,
+ IOMMU_TEST_OP_ACCESS_PAGES,
+ IOMMU_TEST_OP_ACCESS_RW,
+ IOMMU_TEST_OP_SET_TEMP_MEMORY_LIMIT,
+ IOMMU_TEST_OP_MOCK_DOMAIN_REPLACE,
+ IOMMU_TEST_OP_ACCESS_REPLACE_IOAS,
+};
+
+enum {
+ MOCK_APERTURE_START = 1UL << 24,
+ MOCK_APERTURE_LAST = (1UL << 31) - 1,
+};
+
+enum {
+ MOCK_FLAGS_ACCESS_WRITE = 1 << 0,
+ MOCK_FLAGS_ACCESS_SYZ = 1 << 16,
+};
+
+enum {
+ MOCK_ACCESS_RW_WRITE = 1 << 0,
+ MOCK_ACCESS_RW_SLOW_PATH = 1 << 2,
+};
+
+enum {
+ MOCK_FLAGS_ACCESS_CREATE_NEEDS_PIN_PAGES = 1 << 0,
+};
+
+struct iommu_test_cmd {
+ __u32 size;
+ __u32 op;
+ __u32 id;
+ __u32 __reserved;
+ union {
+ struct {
+ __aligned_u64 start;
+ __aligned_u64 length;
+ } add_reserved;
+ struct {
+ __u32 out_stdev_id;
+ __u32 out_hwpt_id;
+ /* out_idev_id is the standard iommufd_bind object */
+ __u32 out_idev_id;
+ } mock_domain;
+ struct {
+ __u32 pt_id;
+ } mock_domain_replace;
+ struct {
+ __aligned_u64 iova;
+ __aligned_u64 length;
+ __aligned_u64 uptr;
+ } check_map;
+ struct {
+ __aligned_u64 length;
+ __aligned_u64 uptr;
+ __u32 refs;
+ } check_refs;
+ struct {
+ __u32 out_access_fd;
+ __u32 flags;
+ } create_access;
+ struct {
+ __u32 access_pages_id;
+ } destroy_access_pages;
+ struct {
+ __u32 flags;
+ __u32 out_access_pages_id;
+ __aligned_u64 iova;
+ __aligned_u64 length;
+ __aligned_u64 uptr;
+ } access_pages;
+ struct {
+ __aligned_u64 iova;
+ __aligned_u64 length;
+ __aligned_u64 uptr;
+ __u32 flags;
+ } access_rw;
+ struct {
+ __u32 limit;
+ } memory_limit;
+ struct {
+ __u32 ioas_id;
+ } access_replace_ioas;
+ };
+ __u32 last;
+};
+#define IOMMU_TEST_CMD _IO(IOMMUFD_TYPE, IOMMUFD_CMD_BASE + 32)
+
+/* Mock structs for IOMMU_DEVICE_GET_HW_INFO ioctl */
+#define IOMMU_HW_INFO_TYPE_SELFTEST 0xfeedbeef
+#define IOMMU_HW_INFO_SELFTEST_REGVAL 0xdeadbeef
+
+struct iommu_test_hw_info {
+ __u32 flags;
+ __u32 test_reg;
+};
+
+#endif