system/ulib/tee-client-api/include/tee-client-api/tee-client-impl.h

// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#pragma once

#include <zircon/types.h>

/*
 * TEE Client Implementation
 *
 * This file provides the Implementation specific structures necessary to complete the TEE
 * Client API.
 */

/* Maximum number of parameters that can be specified in an TEEC_Operation. */
#define TEEC_NUM_PARAMS_MAX 4

typedef struct teec_context_impl {
    zx_handle_t tee_channel;
} teec_context_impl_t;

typedef struct teec_session_impl {
    uint32_t session_id;
    teec_context_impl_t* context_imp;
} teec_session_impl_t;

typedef struct teec_shared_memory_impl {
    zx_handle_t vmo;
    zx_vaddr_t mapped_addr;
    size_t mapped_size;
} teec_shared_memory_impl_t;

typedef struct teec_operation_impl {
    /* This is just a placeholder so that the struct is not empty. */
    char reserved;
} teec_operation_impl_t;