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# Copyright 2022 syzkaller project authors. All rights reserved.
# Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
# https://elixir.bootlin.com/linux/latest/source/include/uapi/linux/iommufd.h
# https://elixir.bootlin.com/linux/latest/source/drivers/iommu/iommufd/main.c
include <uapi/linux/fcntl.h>
include <uapi/linux/iommufd.h>
include <uapi/linux/vfio.h>
resource fd_iommufd[fd]
resource ioas_handle[int32]
openat$iommufd(fd const[AT_FDCWD], file ptr[in, string["/dev/iommu"]], flags flags[open_flags], mode const[0]) fd_iommufd
ioctl$IOMMU_DESTROY$ioas(fd fd_iommufd, cmd const[IOMMU_DESTROY], arg ptr[in, iommu_destroy$ioas])
ioctl$IOMMU_IOAS_ALLOC(fd fd_iommufd, cmd const[IOMMU_IOAS_ALLOC], arg ptr[in, iommu_ioas_alloc])
ioctl$IOMMU_IOAS_IOVA_RANGES(fd fd_iommufd, cmd const[IOMMU_IOAS_IOVA_RANGES], arg ptr[in, iommu_ioas_iova_ranges])
ioctl$IOMMU_IOAS_ALLOW_IOVAS(fd fd_iommufd, cmd const[IOMMU_IOAS_ALLOW_IOVAS], arg ptr[in, iommu_ioas_allow_iovas])
ioctl$IOMMU_IOAS_MAP(fd fd_iommufd, cmd const[IOMMU_IOAS_MAP], arg ptr[in, iommu_ioas_map])
ioctl$IOMMU_IOAS_MAP$PAGES(fd fd_iommufd, cmd const[IOMMU_IOAS_MAP], arg ptr[in, iommu_ioas_map$PAGES])
ioctl$IOMMU_IOAS_COPY(fd fd_iommufd, cmd const[IOMMU_IOAS_COPY], arg ptr[in, iommu_ioas_copy])
ioctl$IOMMU_IOAS_COPY$syz(fd fd_iommufd, cmd const[IOMMU_IOAS_COPY], arg ptr[in, iommu_ioas_copy$syz])
ioctl$IOMMU_IOAS_UNMAP(fd fd_iommufd, cmd const[IOMMU_IOAS_UNMAP], arg ptr[in, iommu_ioas_unmap])
ioctl$IOMMU_IOAS_UNMAP$ALL(fd fd_iommufd, cmd const[IOMMU_IOAS_UNMAP], arg ptr[in, iommu_ioas_unmap$ALL])
ioctl$IOMMU_OPTION$IOMMU_OPTION_RLIMIT_MODE(fd fd_iommufd, cmd const[IOMMU_OPTION], arg ptr[in, iommu_option$IOMMU_OPTION_RLIMIT_MODE])
ioctl$IOMMU_OPTION$IOMMU_OPTION_HUGE_PAGES(fd fd_iommufd, cmd const[IOMMU_OPTION], arg ptr[in, iommu_option$IOMMU_OPTION_HUGE_PAGES])
ioctl$IOMMU_VFIO_IOAS$GET(fd fd_iommufd, cmd const[IOMMU_VFIO_IOAS], arg ptr[in, iommu_vfio_ioas$GET])
ioctl$IOMMU_VFIO_IOAS$SET(fd fd_iommufd, cmd const[IOMMU_VFIO_IOAS], arg ptr[in, iommu_vfio_ioas$SET])
ioctl$IOMMU_VFIO_IOAS$CLEAR(fd fd_iommufd, cmd const[IOMMU_VFIO_IOAS], arg ptr[in, iommu_vfio_ioas$CLEAR])
# VFIO compatibility ioctls
# This shares a few structs with dev_vfio.txt
ioctl$IOMMU_VFIO_GET_API_VERSION(fd fd_iommufd, cmd const[VFIO_GET_API_VERSION])
ioctl$IOMMU_VFIO_SET_IOMMU(fd fd_iommufd, cmd const[VFIO_SET_IOMMU], arg flags[iommu_type])
ioctl$IOMMU_VFIO_CHECK_EXTENSION(fd fd_iommufd, cmd const[VFIO_CHECK_EXTENSION], arg flags[iommu_extension])
ioctl$IOMMU_VFIO_IOMMU_GET_INFO(fd fd_iommufd, cmd const[VFIO_IOMMU_GET_INFO], arg ptr[inout, vfio_iommu_type1_info])
ioctl$IOMMU_VFIO_IOMMU_MAP_DMA(fd fd_iommufd, cmd const[VFIO_IOMMU_MAP_DMA], arg ptr[in, vfio_iommu_type1_dma_map])
ioctl$IOMMU_VFIO_IOMMU_UNMAP_DMA(fd fd_iommufd, cmd const[VFIO_IOMMU_UNMAP_DMA], arg ptr[in, vfio_iommu_type1_dma_unmap])
iommu_destroy$ioas {
size len[parent, int32]
id ioas_handle
}
iommu_ioas_alloc {
size len[parent, int32]
flags const[0, int32]
out_ioas_id ioas_handle (out)
}
iommu_ioas_iova_ranges {
size len[parent, int32]
ioas_id ioas_handle
num_iovas len[allowed_iovas, int32]
__reserved const[0x0, int32]
allowed_iovas ptr64[out, array[iommu_iova_range]]
out_iova_alignment int64 (out)
}
iommu_ioas_allow_iovas {
size len[parent, int32]
ioas_id ioas_handle
num_iovas len[allowed_iovas, int32]
__reserved const[0x0, int32]
allowed_iovas ptr64[in, array[iommu_iova_range]]
}
# user_va/length is a pointer to a chunk of memory
# iova on output is the address that memory was placed at.
# The iova/len pair must be used as an input to unmap
# IOMMU_IOAS_MAP_FIXED_IOVA means iova is an input
iommu_ioas_map {
size len[parent, int32]
flags flags[iommufd_ioas_map_flags, int32]
ioas_id ioas_handle
__reserved const[0x0, int32]
user_va ptr64[in, array[int8]]
length len[user_va, int64]
iova int64 (inout)
}
# Version that guarantees 4k alignment, has a higher chance of success
iommu_ioas_map$PAGES {
size len[parent, int32]
flags flags[iommufd_ioas_map_flags, int32]
ioas_id ioas_handle
__reserved const[0x0, int32]
user_va vma64
length len[user_va, int64]
iova int64 (inout)
}
iommu_ioas_copy {
size len[parent, int32]
flags flags[iommufd_ioas_map_flags, int32]
dst_ioas_id ioas_handle
src_ioas_id ioas_handle
length int64
dst_iova int64 (inout)
src_iova int64
}
iommu_ioas_copy$syz {
size len[parent, int32]
flags flags[iommufd_ioas_map_flags_syz, int32]
dst_ioas_id ioas_handle
src_ioas_id ioas_handle
length int64[0:4194304]
dst_iova int64 (inout)
# See iommufd_test_syz_conv_iova_id()
nth_area int32[0:10]
offset int32[0:4194304]
}
iommu_ioas_unmap {
size len[parent, int32]
ioas_id ioas_handle
iova int64
length int64
}
iommu_ioas_unmap$ALL {
size len[parent, int32]
ioas_id ioas_handle
iova const[0x0, int64]
length const[-1, int64]
}
iommu_option$IOMMU_OPTION_RLIMIT_MODE {
size len[parent, int32]
option_id const[IOMMU_OPTION_RLIMIT_MODE, int32]
op flags[iommufd_option_ops, int16]
__reserved const[0x0, int16]
object_id const[0x0, int32]
val64 int64 (inout)
}
iommu_option$IOMMU_OPTION_HUGE_PAGES {
size len[parent, int32]
option_id const[IOMMU_OPTION_HUGE_PAGES, int32]
op flags[iommufd_option_ops, int16]
__reserved const[0x0, int16]
object_id ioas_handle
val64 int64 (inout)
}
iommu_vfio_ioas$GET {
size len[parent, int32]
ioas_id ioas_handle (out)
opt const[IOMMU_VFIO_IOAS_GET, int16]
__reserved const[0x0, int16]
}
iommu_vfio_ioas$SET {
size len[parent, int32]
ioas_id ioas_handle
opt const[IOMMU_VFIO_IOAS_SET, int16]
__reserved const[0x0, int16]
}
iommu_vfio_ioas$CLEAR {
size len[parent, int32]
ioas_id const[0x0, int32]
opt const[IOMMU_VFIO_IOAS_CLEAR, int16]
__reserved const[0x0, int16]
}
iommu_iova_range {
start int64
last int64
}
iommufd_ioas_map_flags = IOMMU_IOAS_MAP_FIXED_IOVA, IOMMU_IOAS_MAP_WRITEABLE, IOMMU_IOAS_MAP_READABLE
iommufd_ioas_map_flags_syz = MOCK_FLAGS_ACCESS_SYZ, IOMMU_IOAS_MAP_WRITEABLE, IOMMU_IOAS_MAP_READABLE, MOCK_FLAGS_ACCESS_SYZ, IOMMU_IOAS_MAP_READABLE
iommufd_option_ops = IOMMU_OPTION_OP_SET, IOMMU_OPTION_OP_GET
iommu_type = VFIO_TYPE1_IOMMU, VFIO_TYPE1v2_IOMMU
iommu_extension = VFIO_TYPE1_IOMMU, VFIO_TYPE1v2_IOMMU, VFIO_UNMAP_ALL, VFIO_DMA_CC_IOMMU, VFIO_TYPE1_NESTING_IOMMU, VFIO_UPDATE_VADDR
# This section requires CONFIG_IOMMUFD_TEST
# It allows the kernel to provide a mock consumer of iommufd which allows greater coverage
include <../drivers/iommu/iommufd/iommufd_test.h>
define IOMMU_TEST_CMD_SIZE sizeof(struct iommu_test_cmd)
resource device_handle[int32]
resource hwpt_handle[int32]
resource fd_access[fd]
resource access_pages_handle[int32]
ioctl$IOMMU_TEST_OP_ADD_RESERVED(fd fd_iommufd, cmd const[IOMMU_TEST_CMD], arg ptr[in, iommu_test_cmd$add_reserved])
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN(fd fd_iommufd, cmd const[IOMMU_TEST_CMD], arg ptr[in, iommu_test_cmd$mock_domain])
ioctl$IOMMU_TEST_OP_MD_CHECK_MAP(fd fd_iommufd, cmd const[IOMMU_TEST_CMD], arg ptr[in, iommu_test_cmd$md_check_map])
ioctl$IOMMU_TEST_OP_MD_CHECK_REFS(fd fd_iommufd, cmd const[IOMMU_TEST_CMD], arg ptr[in, iommu_test_cmd$md_check_refs])
ioctl$IOMMU_TEST_OP_CREATE_ACCESS(fd fd_iommufd, cmd const[IOMMU_TEST_CMD], arg ptr[in, iommu_test_cmd$create_access])
ioctl$IOMMU_TEST_OP_DESTROY_ACCESS_PAGES(fd fd_iommufd, cmd const[IOMMU_TEST_CMD], arg ptr[in, iommu_test_cmd$destroy_access_pages])
ioctl$IOMMU_TEST_OP_ACCESS_PAGES(fd fd_iommufd, cmd const[IOMMU_TEST_CMD], arg ptr[in, iommu_test_cmd$access_pages])
ioctl$IOMMU_TEST_OP_ACCESS_PAGES$syz(fd fd_iommufd, cmd const[IOMMU_TEST_CMD], arg ptr[in, iommu_test_cmd$access_pages$syz])
ioctl$IOMMU_TEST_OP_ACCESS_RW(fd fd_iommufd, cmd const[IOMMU_TEST_CMD], arg ptr[in, iommu_test_cmd$access_rw])
ioctl$IOMMU_TEST_OP_ACCESS_RW$syz(fd fd_iommufd, cmd const[IOMMU_TEST_CMD], arg ptr[in, iommu_test_cmd$access_rw$syz])
ioctl$IOMMU_TEST_OP_SET_TEMP_MEMORY_LIMIT(fd fd_iommufd, cmd const[IOMMU_TEST_CMD], arg ptr[in, iommu_test_cmd$memory_limit])
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_REPLACE(fd fd_iommufd, cmd const[IOMMU_TEST_CMD], arg ptr[in, iommu_test_cmd$mock_domain_replace])
ioctl$IOMMU_TEST_OP_ACCESS_REPLACE_IOAS(fd fd_iommufd, cmd const[IOMMU_TEST_CMD], arg ptr[in, iommu_test_cmd$access_replace_ioas])
ioctl$IOMMU_DESTROY$device(fd fd_iommufd, cmd const[IOMMU_DESTROY], arg ptr[in, iommu_destroy$device])
ioctl$IOMMU_DESTROY$hwpt(fd fd_iommufd, cmd const[IOMMU_DESTROY], arg ptr[in, iommu_destroy$hwpt])
iommu_test_cmd$add_reserved {
size len[parent, int32]
op const[IOMMU_TEST_OP_ADD_RESERVED, int32]
id ioas_handle
__reserved const[0x0, int32]
start int64
length int64
} [size[IOMMU_TEST_CMD_SIZE]]
iommu_test_cmd$mock_domain {
size len[parent, int32]
op const[IOMMU_TEST_OP_MOCK_DOMAIN, int32]
id ioas_handle
__reserved const[0x0, int32]
out_device_id device_handle (out)
out_hwpt_id hwpt_handle (out)
} [size[IOMMU_TEST_CMD_SIZE]]
iommu_test_cmd$md_check_map {
size len[parent, int32]
op const[IOMMU_TEST_OP_MD_CHECK_MAP, int32]
id fd_access
__reserved const[0x0, int32]
iova int64
length len[uptr, int64]
uptr ptr64[in, array[int8]]
} [size[IOMMU_TEST_CMD_SIZE]]
iommu_test_cmd$md_check_refs {
size len[parent, int32]
op const[IOMMU_TEST_OP_MD_CHECK_REFS, int32]
id fd_access
__reserved const[0x0, int32]
length len[uptr, int64]
uptr ptr64[in, array[int8]]
refs int32
} [size[IOMMU_TEST_CMD_SIZE]]
iommu_test_cmd$create_access {
size len[parent, int32]
op const[IOMMU_TEST_OP_CREATE_ACCESS, int32]
id ioas_handle
__reserved const[0x0, int32]
out_access_fd fd_access (out)
flags flags[iommu_test_cmd_create_access_flags, int32]
} [size[IOMMU_TEST_CMD_SIZE]]
iommu_test_cmd$destroy_access_pages {
size len[parent, int32]
op const[IOMMU_TEST_OP_DESTROY_ACCESS_PAGES, int32]
id ioas_handle
__reserved const[0x0, int32]
access_pages_id access_pages_handle
} [size[IOMMU_TEST_CMD_SIZE]]
iommu_test_cmd$access_pages {
size len[parent, int32]
op const[IOMMU_TEST_OP_ACCESS_PAGES, int32]
id fd_access
__reserved const[0x0, int32]
flags flags[iommu_test_cmd_acess_pages_flags, int32]
out_access_pages_id access_pages_handle (out)
iova int64
length int64
# The test suite uses uptr to confirm the pages are the right pages, 0 will disable the check
uptr const[0x0, int64]
} [size[IOMMU_TEST_CMD_SIZE]]
iommu_test_cmd$access_pages$syz {
size len[parent, int32]
op const[IOMMU_TEST_OP_ACCESS_PAGES, int32]
id fd_access
__reserved const[0x0, int32]
flags flags[iommu_test_cmd_acess_pages_flags_syz, int32]
out_access_pages_id access_pages_handle (out)
# See iommufd_test_syz_conv_iova_id()
nth_area int32[0:10]
offset int32[0:4194304]
length int64[0:4194304]
# The test suite uses uptr to confirm the pages are the right pages, 0 will disable the check
uptr const[0x0, int64]
} [size[IOMMU_TEST_CMD_SIZE]]
iommu_test_cmd$access_rw {
size len[parent, int32]
op const[IOMMU_TEST_OP_ACCESS_RW, int32]
id fd_access
__reserved const[0x0, int32]
iova int64
length len[uptr, int64]
uptr ptr64[in, array[int8]]
flags flags[iommu_test_cmd_acess_rw_flags, int32]
} [size[IOMMU_TEST_CMD_SIZE]]
iommu_test_cmd$access_rw$syz {
size len[parent, int32]
op const[IOMMU_TEST_OP_ACCESS_RW, int32]
id fd_access
__reserved const[0x0, int32]
# See iommufd_test_syz_conv_iova_id()
nth_area int32[0:10]
offset int32[0:4194304]
length len[uptr, int64]
uptr ptr64[in, array[int8]]
flags flags[iommu_test_cmd_acess_rw_flags_syz, int32]
} [size[IOMMU_TEST_CMD_SIZE]]
iommu_test_cmd$memory_limit {
size len[parent, int32]
op const[IOMMU_TEST_OP_SET_TEMP_MEMORY_LIMIT, int32]
id const[0x0, int32]
__reserved const[0x0, int32]
limit int32
} [size[IOMMU_TEST_CMD_SIZE]]
iommu_test_cmd$mock_domain_replace {
size len[parent, int32]
op const[IOMMU_TEST_OP_MOCK_DOMAIN_REPLACE, int32]
id ioas_handle
__reserved const[0x0, int32]
pt_id int32
} [size[IOMMU_TEST_CMD_SIZE]]
iommu_test_cmd$access_replace_ioas {
size len[parent, int32]
op const[IOMMU_TEST_OP_ACCESS_REPLACE_IOAS, int32]
id fd_access
__reserved const[0x0, int32]
ioas_id int32
} [size[IOMMU_TEST_CMD_SIZE]]
iommu_destroy$device {
size len[parent, int32]
id device_handle
}
iommu_destroy$hwpt {
size len[parent, int32]
id hwpt_handle
}
iommu_test_cmd_create_access_flags = MOCK_FLAGS_ACCESS_CREATE_NEEDS_PIN_PAGES
iommu_test_cmd_acess_pages_flags = MOCK_FLAGS_ACCESS_WRITE
iommu_test_cmd_acess_pages_flags_syz = MOCK_FLAGS_ACCESS_SYZ, MOCK_FLAGS_ACCESS_WRITE
iommu_test_cmd_acess_rw_flags = MOCK_ACCESS_RW_WRITE, MOCK_ACCESS_RW_SLOW_PATH
iommu_test_cmd_acess_rw_flags_syz = MOCK_FLAGS_ACCESS_SYZ, iommu_test_cmd_acess_rw_flags
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