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/kernel/linux/linux-6.6/Documentation/staging/
Dtee.rst2 TEE subsystem
5 This document describes the TEE subsystem in Linux.
7 A TEE (Trusted Execution Environment) is a trusted OS running in some
9 secure co-processor etc. A TEE driver handles the details needed to
10 communicate with the TEE.
14 - Registration of TEE drivers
16 - Managing shared memory between Linux and the TEE
18 - Providing a generic API to the TEE
20 The TEE interface
23 include/uapi/linux/tee.h defines the generic interface to a TEE.
[all …]
/kernel/linux/linux-5.10/Documentation/staging/
Dtee.rst2 TEE subsystem
5 This document describes the TEE subsystem in Linux.
7 A TEE (Trusted Execution Environment) is a trusted OS running in some
9 secure co-processor etc. A TEE driver handles the details needed to
10 communicate with the TEE.
14 - Registration of TEE drivers
16 - Managing shared memory between Linux and the TEE
18 - Providing a generic API to the TEE
20 The TEE interface
23 include/uapi/linux/tee.h defines the generic interface to a TEE.
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/kernel/linux/linux-6.6/drivers/tee/optee/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
2 # OP-TEE Trusted Execution Environment Configuration
4 tristate "OP-TEE"
8 This implements the OP-TEE Trusted Execution Environment (TEE)
12 bool "Load OP-TEE image as firmware"
16 This loads the BL32 image for OP-TEE as firmware when the driver is
17 probed. This returns -EPROBE_DEFER until the firmware is loadable from
23 https://trustedfirmware-a.readthedocs.io/en/latest/threat_model/threat_model.html
26 Documentation/staging/tee.rst.
Dsmc_abi.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2015-2021, Linaro Limited
9 #include <linux/arm-smccc.h>
38 * OP-TEE OS via raw SMCs.
49 * A typical OP-TEE private shm allocation is 224 bytes (argument struct
58 /* SMC ABI considers at most a single TEE firmware */
89 p->attr = TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_INPUT + in from_msg_param_tmp_mem()
90 attr - OPTEE_MSG_ATTR_TYPE_TMEM_INPUT; in from_msg_param_tmp_mem()
91 p->u.memref.size = mp->u.tmem.size; in from_msg_param_tmp_mem()
92 shm = (struct tee_shm *)(unsigned long)mp->u.tmem.shm_ref; in from_msg_param_tmp_mem()
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Doptee_private.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2015-2021, Linaro Limited
9 #include <linux/arm-smccc.h>
73 * struct optee_supp - supplicant synchronization struct
79 * communication, else -1
98 * struct optee_pcpu - per cpu notif private struct passed to work functions
106 * struct optee_smc - optee smc communication struct
111 * @notif_irq interrupt used as async notification by OP-TEE or 0
129 * struct optee_ffa_data - FFA communication struct
131 * OP-TEE in secure world
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/kernel/linux/linux-5.10/Documentation/ABI/testing/
Dsysfs-bus-optee-devices1 What: /sys/bus/tee/devices/optee-ta-<uuid>/
4 Contact: op-tee@lists.trustedfirmware.org
6 OP-TEE bus provides reference to registered drivers under this directory. The <uuid>
8 are free to create needed API under optee-ta-<uuid> directory.
10 What: /sys/bus/tee/devices/optee-ta-<uuid>/need_supplicant
13 Contact: op-tee@lists.trustedfirmware.org
15 Allows to distinguish whether an OP-TEE based TA/device requires user-space
16 tee-supplicant to function properly or not. This attribute will be present for
17 devices which depend on tee-supplicant to be running.
/kernel/linux/linux-6.6/Documentation/ABI/testing/
Dsysfs-bus-optee-devices1 What: /sys/bus/tee/devices/optee-ta-<uuid>/
4 Contact: op-tee@lists.trustedfirmware.org
6 OP-TEE bus provides reference to registered drivers under this directory. The <uuid>
8 are free to create needed API under optee-ta-<uuid> directory.
10 What: /sys/bus/tee/devices/optee-ta-<uuid>/need_supplicant
13 Contact: op-tee@lists.trustedfirmware.org
15 Allows to distinguish whether an OP-TEE based TA/device requires user-space
16 tee-supplicant to function properly or not. This attribute will be present for
17 devices which depend on tee-supplicant to be running.
/kernel/linux/linux-5.10/drivers/tee/optee/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
2 # OP-TEE Trusted Execution Environment Configuration
4 tristate "OP-TEE"
8 This implements the OP-TEE Trusted Execution Environment (TEE)
17 used by OP-TEE TEE driver.
Dcall.c1 // SPDX-License-Identifier: GPL-2.0-only
5 #include <linux/arm-smccc.h>
34 mutex_lock(&cq->mutex); in optee_cq_wait_init()
42 init_completion(&w->c); in optee_cq_wait_init()
43 list_add_tail(&w->list_node, &cq->waiters); in optee_cq_wait_init()
45 mutex_unlock(&cq->mutex); in optee_cq_wait_init()
51 wait_for_completion(&w->c); in optee_cq_wait_for_completion()
53 mutex_lock(&cq->mutex); in optee_cq_wait_for_completion()
56 list_del(&w->list_node); in optee_cq_wait_for_completion()
57 reinit_completion(&w->c); in optee_cq_wait_for_completion()
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Dshm_pool.c1 // SPDX-License-Identifier: GPL-2.0-only
7 #include <linux/dma-buf.h>
24 return -ENOMEM; in pool_op_alloc()
26 shm->kaddr = page_address(page); in pool_op_alloc()
27 shm->paddr = page_to_phys(page); in pool_op_alloc()
28 shm->size = PAGE_SIZE << order; in pool_op_alloc()
31 * Shared memory private to the OP-TEE driver doesn't need in pool_op_alloc()
32 * to be registered with OP-TEE. in pool_op_alloc()
34 if (!(shm->flags & TEE_SHM_PRIV)) { in pool_op_alloc()
40 rc = -ENOMEM; in pool_op_alloc()
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/kernel/linux/linux-5.10/Documentation/devicetree/bindings/arm/firmware/
Dlinaro,optee-tz.txt1 OP-TEE Device Tree Bindings
3 OP-TEE is a piece of software using hardware features to provide a Trusted
10 * OP-TEE based on ARM TrustZone required properties:
12 - compatible : should contain "linaro,optee-tz"
14 - method : The method of calling the OP-TEE Trusted OS. Permitted
18 in drivers/tee/optee/optee_smc.h
21 in drivers/tee/optee/optee_smc.h
28 compatible = "linaro,optee-tz";
/kernel/linux/linux-6.6/drivers/nvmem/
Dstm32-bsec-optee-ta.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * OP-TEE STM32MP BSEC PTA interface, used by STM32 ROMEM driver
5 * Copyright (C) 2022, STMicroelectronics - All Rights Reserved
10 * stm32_bsec_optee_ta_open() - initialize the STM32 BSEC TA
11 * @ctx: the OP-TEE context on success
14 * On success, 0. On failure, -errno.
19 * stm32_bsec_optee_ta_close() - release the STM32 BSEC TA
20 * @ctx: the OP-TEE context
22 * This function used to clean the OP-TEE resources initialized in
29 * stm32_bsec_optee_ta_read() - nvmem read access using TA client driver
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Dstm32-bsec-optee-ta.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * OP-TEE STM32MP BSEC PTA interface, used by STM32 ROMEM driver
5 * Copyright (C) 2022, STMicroelectronics - All Rights Reserved
10 #include "stm32-bsec-optee-ta.h"
21 * TEE_SUCCESS - Invoke command success
22 * TEE_ERROR_BAD_PARAMETERS - Incorrect input param
23 * TEE_ERROR_ACCESS_DENIED - OTP not accessible by caller
36 * TEE_SUCCESS - Invoke command success
37 * TEE_ERROR_BAD_PARAMETERS - Incorrect input param
38 * TEE_ERROR_ACCESS_DENIED - OTP not accessible by caller
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/kernel/linux/linux-6.6/drivers/firmware/arm_scmi/
Doptee.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2019-2021 Linaro Ltd.
15 #include <uapi/linux/tee.h>
23 * PTA_SCMI_CMD_CAPABILITIES - Get channel capabilities
31 * PTA_SCMI_CMD_PROCESS_SMT_CHANNEL - Process SCMI message in SMT buffer
37 * and SCMI server (OP-TEE) parts.
38 * The memory uses SMT header to carry SCMI meta-data (protocol ID and
44 * PTA_SCMI_CMD_PROCESS_SMT_CHANNEL_MESSAGE - Process SMT/SCMI message
52 * The memory uses SMT header to carry SCMI meta-data (protocol ID and
58 * PTA_SCMI_CMD_GET_CHANNEL - Get channel handle
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/kernel/linux/linux-6.6/arch/arm/mach-at91/
Dsam_secure.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 #include <linux/arm-smccc.h>
19 struct arm_smccc_res res = {.a0 = -1}; in sam_smccc_call()
41 * We only check that the OP-TEE node is present and available. The in sam_secure_init()
42 * OP-TEE kernel driver is not needed for the type of interaction made in sam_secure_init()
43 * with OP-TEE here so the driver's status is not checked. in sam_secure_init()
51 pr_info("Running under OP-TEE firmware\n"); in sam_secure_init()
/kernel/linux/linux-5.10/drivers/firmware/broadcom/
Dtee_bnxt_fw.c1 // SPDX-License-Identifier: GPL-2.0
21 * TA_CMD_BNXT_FASTBOOT - boot bnxt device by copying f/w into sram
29 * TEE_SUCCESS - Invoke command success
30 * TEE_ERROR_ITEM_NOT_FOUND - Corrupt f/w image found on memory
35 * TA_CMD_BNXT_COPY_COREDUMP - copy the core dump into shm
37 * param[0] (inout memref) - Coredump buffer memory reference
38 * param[1] (in value) - value.a: offset, data to be copied from
44 * TEE_SUCCESS - Invoke command success
45 * TEE_ERROR_BAD_PARAMETERS - Incorrect input param
46 * TEE_ERROR_ITEM_NOT_FOUND - Corrupt core dump
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/kernel/linux/linux-6.6/drivers/firmware/broadcom/
Dtee_bnxt_fw.c1 // SPDX-License-Identifier: GPL-2.0
21 * TA_CMD_BNXT_FASTBOOT - boot bnxt device by copying f/w into sram
29 * TEE_SUCCESS - Invoke command success
30 * TEE_ERROR_ITEM_NOT_FOUND - Corrupt f/w image found on memory
35 * TA_CMD_BNXT_COPY_COREDUMP - copy the core dump into shm
37 * param[0] (inout memref) - Coredump buffer memory reference
38 * param[1] (in value) - value.a: offset, data to be copied from
44 * TEE_SUCCESS - Invoke command success
45 * TEE_ERROR_BAD_PARAMETERS - Incorrect input param
46 * TEE_ERROR_ITEM_NOT_FOUND - Corrupt core dump
[all …]
/kernel/linux/linux-6.6/drivers/tee/amdtee/
Damdtee_if.h1 /* SPDX-License-Identifier: MIT */
8 * This file has definitions related to Host and AMD-TEE Trusted OS interface.
9 * These definitions must match the definitions on the TEE side.
18 ** TEE Param
23 * struct memref - memory reference structure
52 /* Must be same as in GP TEE specification */
67 ** TEE Commands
72 * non-contiguous. Below structures are meant to describe a shared memory region
77 * struct tee_sg_desc - sg descriptor for a physically contiguous buffer
89 * struct tee_sg_list - structure describing a scatter/gather list
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Dcall.c1 // SPDX-License-Identifier: MIT
7 #include <linux/tee.h>
9 #include <linux/psp-tee.h>
15 static int tee_params_to_amd_params(struct tee_param *tee, u32 count, in tee_params_to_amd_params() argument
24 if (!tee || !amd || count > TEE_MAX_PARAMS) in tee_params_to_amd_params()
25 return -EINVAL; in tee_params_to_amd_params()
27 amd->param_types = 0; in tee_params_to_amd_params()
29 /* AMD TEE does not support meta parameter */ in tee_params_to_amd_params()
30 if (tee[i].attr > TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_INOUT) in tee_params_to_amd_params()
31 return -EINVAL; in tee_params_to_amd_params()
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/kernel/linux/linux-5.10/drivers/tee/amdtee/
Damdtee_if.h1 /* SPDX-License-Identifier: MIT */
8 * This file has definitions related to Host and AMD-TEE Trusted OS interface.
9 * These definitions must match the definitions on the TEE side.
18 ** TEE Param
23 * struct memref - memory reference structure
52 /* Must be same as in GP TEE specification */
67 ** TEE Commands
72 * non-contiguous. Below structures are meant to describe a shared memory region
77 * struct tee_sg_desc - sg descriptor for a physically contiguous buffer
89 * struct tee_sg_list - structure describing a scatter/gather list
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Dcall.c1 // SPDX-License-Identifier: MIT
7 #include <linux/tee.h>
9 #include <linux/psp-tee.h>
11 #include <linux/psp-sev.h>
15 static int tee_params_to_amd_params(struct tee_param *tee, u32 count, in tee_params_to_amd_params() argument
24 if (!tee || !amd || count > TEE_MAX_PARAMS) in tee_params_to_amd_params()
25 return -EINVAL; in tee_params_to_amd_params()
27 amd->param_types = 0; in tee_params_to_amd_params()
29 /* AMD TEE does not support meta parameter */ in tee_params_to_amd_params()
30 if (tee[i].attr > TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_INOUT) in tee_params_to_amd_params()
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/kernel/linux/linux-6.6/Documentation/devicetree/bindings/arm/firmware/
Dlinaro,optee-tz.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/arm/firmware/linaro,optee-tz.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: OP-TEE
10 - Jens Wiklander <jens.wiklander@linaro.org>
13 OP-TEE is a piece of software using hardware features to provide a Trusted
25 const: linaro,optee-tz
31 software is expected to be either a per-cpu interrupt or an
32 edge-triggered peripheral interrupt.
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/kernel/linux/linux-6.6/drivers/char/hw_random/
Doptee-rng.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2018-2019 Linaro Ltd.
15 #define DRIVER_NAME "optee-rng"
20 * TA_CMD_GET_ENTROPY - Get Entropy from RNG
22 * param[0] (inout memref) - Entropy buffer memory reference
28 * TEE_SUCCESS - Invoke command success
29 * TEE_ERROR_BAD_PARAMETERS - Incorrect input param
30 * TEE_ERROR_NOT_SUPPORTED - Requested entropy size greater than size of pool
31 * TEE_ERROR_HEALTH_TEST_FAIL - Continuous health testing failed
36 * TA_CMD_GET_RNG_INFO - Get RNG information
[all …]
/kernel/linux/linux-5.10/drivers/char/hw_random/
Doptee-rng.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2018-2019 Linaro Ltd.
15 #define DRIVER_NAME "optee-rng"
20 * TA_CMD_GET_ENTROPY - Get Entropy from RNG
22 * param[0] (inout memref) - Entropy buffer memory reference
28 * TEE_SUCCESS - Invoke command success
29 * TEE_ERROR_BAD_PARAMETERS - Incorrect input param
30 * TEE_ERROR_NOT_SUPPORTED - Requested entropy size greater than size of pool
31 * TEE_ERROR_HEALTH_TEST_FAIL - Continuous health testing failed
36 * TA_CMD_GET_RNG_INFO - Get RNG information
[all …]
/kernel/linux/linux-6.6/drivers/rtc/
Drtc-optee.c1 // SPDX-License-Identifier: GPL-2.0
40 * struct optee_rtc - OP-TEE RTC private data
41 * @dev: OP-TEE based RTC device.
42 * @ctx: OP-TEE context handler.
64 inv_arg.session = priv->session_id; in optee_rtc_readtime()
69 param[0].u.memref.shm = priv->shm; in optee_rtc_readtime()
72 ret = tee_client_invoke_func(priv->ctx, &inv_arg, param); in optee_rtc_readtime()
74 return ret ? ret : -EPROTO; in optee_rtc_readtime()
76 optee_tm = tee_shm_get_va(priv->shm, 0); in optee_rtc_readtime()
81 return -EPROTO; in optee_rtc_readtime()
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