unsupported 9ˆl–Ým_J*j"Tâ€~àEp©‹FÿÉ ƒh¹a–Ým_J*j"Tâ€~àEp©‹FÿÌ0 ˆÅÊ „ -_ƾÌ4d/* * Copyright (c) 2015-2016, Linaro Limited * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __TEE_H #define __TEE_H #include #include /* * This file describes the API provided by a TEE driver to user space. * * Each TEE driver defines a TEE specific protocol which is used for the * data passed back and forth using TEE_IOC_CMD. */ /* Helpers to make the ioctl defines */ #define TEE_IOC_MAGIC 0xa4 #define TEE_IOC_BASE 0 #define TEE_MAX_ARG_SIZE 1024 #define TEE_GEN_CAP_GP (1 << 0)/* GlobalPlatform compliant TEE */ #define TEE_GEN_CAP_PRIVILEGED (1 << 1)/* Privileged device (for supplicant) */ #define TEE_GEN_CAP_REG_MEM (1 << 2)/* Supports registering shared memory */ #define TEE_GEN_CAP_MEMREF_NULL (1 << 3)/* NULL MemRef support */ #define TEE_MEMREF_NULL (__u64)(-1) /* NULL MemRef Buffer */ /* * TEE Implementation ID */ #define TEE_IMPL_ID_OPTEE 1 #define TEE_IMPL_ID_AMDTEE 2 /* * OP-TEE specific capabilities */ #define TEE_OPTEE_CAP_TZ (1 << 0) /** * struct tee_ioctl_version_data - TEE version * @impl_id: [out] TEE implementation id * @impl_caps: [out] Implementation specific capabilities * @gen_caps: [out] Generic capabilities, defined by TEE_GEN_CAPS_* above * * Identifies the TEE implementation, @impl_id is one of TEE_IMPL_ID_* above. * @impl_caps is implementation specific, for example TEE_OPTEE_CAP_* * is valid when @impl_id == TEE_IMPL_ID_OPTEE. */ struct tee_ioctl_version_data { __u32 impl_id; __u32 impl_caps; __u32 gen_caps; }; /** * TEE_IOC_VERSION - query version of TEE * * Takes a tee_ioctl_version_data struct and returns with the TEE version * data filled in. */ #define TEE_IOC_VERSION _IOR(TEE_IOC_MAGIC, TEE_IOC_BASE + 0, \ struct tee_ioctl_version_data) /** * struct tee_ioctl_shm_alloc_data - Shared memory allocate argument * @size: [in/out] Size of shared memory to allocate * @flags: [in/out] Flags to/from allocation. * @id: [out] Identifier of the shared memory * * The flags field should currently be zero as input. Updated by the call * with actual flags as defined by TEE_IOCTL_SHM_* above. * This structure is used as argument for TEE_IOC_SHM_ALLOC below. */ struct tee_ioctl_shm_alloc_data { __u64 size; __u32 flags; __s32 id; }; /** * TEE_IOC_SHM_ALLOC - allocate shared memory * * Allocates shared memory between the user space process and secure OS. * * Returns a file descriptor on success or < 0 on failure * * The returned file descriptor is used to map the shared memory into user * space. The shared memory is freed when the descriptor is closed and the * memory is unmapped. */ #define TEE_IOC_SHM_ALLOC _IOWR(TEE_IOC_