mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-22 03:03:05 +00:00
1cc8cc4e67
Adds configuration option OPTEE_TA_AVB and a header file describing the interface to the Android Verified Boot 2.0 (AVB) trusted application provided by OP-TEE. Tested-by: Igor Opaniuk <igor.opaniuk@linaro.org> Reviewed-by: Igor Opaniuk <igor.opaniuk@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> Reviewed-by: Simon Glass <sjg@chromium.org>
374 lines
11 KiB
C
374 lines
11 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (c) 2018 Linaro Limited
|
|
*/
|
|
|
|
#ifndef __TEE_H
|
|
#define __TEE_H
|
|
|
|
#define TEE_UUID_LEN 16
|
|
|
|
#define TEE_GEN_CAP_GP BIT(0) /* GlobalPlatform compliant TEE */
|
|
#define TEE_GEN_CAP_REG_MEM BIT(1) /* Supports registering shared memory */
|
|
|
|
#define TEE_SHM_REGISTER BIT(0) /* In list of shared memory */
|
|
#define TEE_SHM_SEC_REGISTER BIT(1) /* TEE notified of this memory */
|
|
#define TEE_SHM_ALLOC BIT(2) /* The memory is malloced() and must */
|
|
/* be freed() */
|
|
|
|
#define TEE_PARAM_ATTR_TYPE_NONE 0 /* parameter not used */
|
|
#define TEE_PARAM_ATTR_TYPE_VALUE_INPUT 1
|
|
#define TEE_PARAM_ATTR_TYPE_VALUE_OUTPUT 2
|
|
#define TEE_PARAM_ATTR_TYPE_VALUE_INOUT 3 /* input and output */
|
|
#define TEE_PARAM_ATTR_TYPE_MEMREF_INPUT 5
|
|
#define TEE_PARAM_ATTR_TYPE_MEMREF_OUTPUT 6
|
|
#define TEE_PARAM_ATTR_TYPE_MEMREF_INOUT 7 /* input and output */
|
|
#define TEE_PARAM_ATTR_TYPE_MASK 0xff
|
|
#define TEE_PARAM_ATTR_META 0x100
|
|
#define TEE_PARAM_ATTR_MASK (TEE_PARAM_ATTR_TYPE_MASK | \
|
|
TEE_PARAM_ATTR_META)
|
|
|
|
/*
|
|
* Some Global Platform error codes which has a meaning if the
|
|
* TEE_GEN_CAP_GP bit is returned by the driver in
|
|
* struct tee_version_data::gen_caps
|
|
*/
|
|
#define TEE_SUCCESS 0x00000000
|
|
#define TEE_ERROR_GENERIC 0xffff0000
|
|
#define TEE_ERROR_BAD_PARAMETERS 0xffff0006
|
|
#define TEE_ERROR_ITEM_NOT_FOUND 0xffff0008
|
|
#define TEE_ERROR_NOT_IMPLEMENTED 0xffff0009
|
|
#define TEE_ERROR_NOT_SUPPORTED 0xffff000a
|
|
#define TEE_ERROR_COMMUNICATION 0xffff000e
|
|
#define TEE_ERROR_SECURITY 0xffff000f
|
|
#define TEE_ERROR_OUT_OF_MEMORY 0xffff000c
|
|
#define TEE_ERROR_TARGET_DEAD 0xffff3024
|
|
|
|
#define TEE_ORIGIN_COMMS 0x00000002
|
|
#define TEE_ORIGIN_TEE 0x00000003
|
|
#define TEE_ORIGIN_TRUSTED_APP 0x00000004
|
|
|
|
struct udevice;
|
|
|
|
/**
|
|
* struct tee_optee_ta_uuid - OP-TEE Trusted Application (TA) UUID format
|
|
*
|
|
* Used to identify an OP-TEE TA and define suitable to initialize structs
|
|
* of this format is distributed with the interface of the TA. The
|
|
* individual fields of this struct doesn't have any special meaning in
|
|
* OP-TEE. See RFC4122 for details on the format.
|
|
*/
|
|
struct tee_optee_ta_uuid {
|
|
u32 time_low;
|
|
u16 time_mid;
|
|
u16 time_hi_and_version;
|
|
u8 clock_seq_and_node[8];
|
|
};
|
|
|
|
/**
|
|
* struct tee_shm - memory shared with the TEE
|
|
* @dev: The TEE device
|
|
* @link: List node in the list in struct struct tee_uclass_priv
|
|
* @addr: Pointer to the shared memory
|
|
* @size: Size of the the shared memory
|
|
* @flags: TEE_SHM_* above
|
|
*/
|
|
struct tee_shm {
|
|
struct udevice *dev;
|
|
struct list_head link;
|
|
void *addr;
|
|
ulong size;
|
|
u32 flags;
|
|
};
|
|
|
|
/**
|
|
* struct tee_param_memref - memory reference for a Trusted Application
|
|
* @shm_offs: Offset in bytes into the shared memory object @shm
|
|
* @size: Size in bytes of the memory reference
|
|
* @shm: Pointer to a shared memory object for the buffer
|
|
*
|
|
* Used as a part of struct tee_param, see that for more information.
|
|
*/
|
|
struct tee_param_memref {
|
|
ulong shm_offs;
|
|
ulong size;
|
|
struct tee_shm *shm;
|
|
};
|
|
|
|
/**
|
|
* struct tee_param_value - value parameter for a Trusted Application
|
|
* @a, @b, @c: Parameters passed by value
|
|
*
|
|
* Used as a part of struct tee_param, see that for more information.
|
|
*/
|
|
struct tee_param_value {
|
|
u64 a;
|
|
u64 b;
|
|
u64 c;
|
|
};
|
|
|
|
/**
|
|
* struct tee_param - invoke parameter for a Trusted Application
|
|
* @attr: Attributes
|
|
* @u.memref: Memref parameter if (@attr & TEE_PARAM_ATTR_MASK) is one of
|
|
* TEE_PARAM_ATTR_TYPE_MEMREF_* above
|
|
* @u.value: Value parameter if (@attr & TEE_PARAM_ATTR_MASK) is one of
|
|
* TEE_PARAM_ATTR_TYPE_VALUE_* above
|
|
*
|
|
* Parameters to TA are passed using an array of this struct, for
|
|
* flexibility both value parameters and memory refereces can be used.
|
|
*/
|
|
struct tee_param {
|
|
u64 attr;
|
|
union {
|
|
struct tee_param_memref memref;
|
|
struct tee_param_value value;
|
|
} u;
|
|
};
|
|
|
|
/**
|
|
* struct tee_open_session_arg - extra arguments for tee_open_session()
|
|
* @uuid: [in] UUID of the Trusted Application
|
|
* @clnt_uuid: [in] Normally zeroes
|
|
* @clnt_login: [in] Normally 0
|
|
* @session: [out] Session id
|
|
* @ret: [out] return value
|
|
* @ret_origin: [out] origin of the return value
|
|
*/
|
|
struct tee_open_session_arg {
|
|
u8 uuid[TEE_UUID_LEN];
|
|
u8 clnt_uuid[TEE_UUID_LEN];
|
|
u32 clnt_login;
|
|
u32 session;
|
|
u32 ret;
|
|
u32 ret_origin;
|
|
};
|
|
|
|
/**
|
|
* struct tee_invoke_arg - extra arguments for tee_invoke_func()
|
|
* @func: [in] Trusted Application function, specific to the TA
|
|
* @session: [in] Session id, from open session
|
|
* @ret: [out] return value
|
|
* @ret_origin: [out] origin of the return value
|
|
*/
|
|
struct tee_invoke_arg {
|
|
u32 func;
|
|
u32 session;
|
|
u32 ret;
|
|
u32 ret_origin;
|
|
};
|
|
|
|
/**
|
|
* struct tee_version_data - description of TEE
|
|
* @gen_caps: Generic capabilities, TEE_GEN_CAP_* above
|
|
*/
|
|
struct tee_version_data {
|
|
u32 gen_caps;
|
|
};
|
|
|
|
/**
|
|
* struct tee_driver_ops - TEE driver operations
|
|
* @get_version: Query capabilities of TEE device,
|
|
* @open_session: Opens a session to a Trusted Application in the TEE,
|
|
* @close_session: Closes a session to Trusted Application,
|
|
* @invoke_func: Invokes a function in a Trusted Application,
|
|
* @shm_register: Registers memory shared with the TEE
|
|
* @shm_unregister: Unregisters memory shared with the TEE
|
|
*/
|
|
struct tee_driver_ops {
|
|
/**
|
|
* get_version() - Query capabilities of TEE device
|
|
* @dev: The TEE device
|
|
* @vers: Pointer to version data
|
|
*/
|
|
void (*get_version)(struct udevice *dev, struct tee_version_data *vers);
|
|
/**
|
|
* open_session() - Open a session to a Trusted Application
|
|
* @dev: The TEE device
|
|
* @arg: Open session arguments
|
|
* @num_param: Number of elements in @param
|
|
* @param: Parameters for Trusted Application
|
|
*
|
|
* Returns < 0 on error else see @arg->ret for result. If @arg->ret is
|
|
* TEE_SUCCESS the session identifier is available in @arg->session.
|
|
*/
|
|
int (*open_session)(struct udevice *dev,
|
|
struct tee_open_session_arg *arg, uint num_param,
|
|
struct tee_param *param);
|
|
/**
|
|
* close_session() - Close a session to a Trusted Application
|
|
* @dev: The TEE device
|
|
* @session: Session id
|
|
*
|
|
* Return < 0 on error else 0, regardless the session will not be valid
|
|
* after this function has returned.
|
|
*/
|
|
int (*close_session)(struct udevice *dev, u32 session);
|
|
/**
|
|
* tee_invoke_func() - Invoke a function in a Trusted Application
|
|
* @dev: The TEE device
|
|
* @arg: Invoke arguments
|
|
* @num_param: Number of elements in @param
|
|
* @param: Parameters for Trusted Application
|
|
*
|
|
* Returns < 0 on error else see @arg->ret for result.
|
|
*/
|
|
int (*invoke_func)(struct udevice *dev, struct tee_invoke_arg *arg,
|
|
uint num_param, struct tee_param *param);
|
|
/**
|
|
* shm_register() - Registers memory shared with the TEE
|
|
* @dev: The TEE device
|
|
* @shm: Pointer to a shared memory object
|
|
* Returns 0 on success or < 0 on failure.
|
|
*/
|
|
int (*shm_register)(struct udevice *dev, struct tee_shm *shm);
|
|
/**
|
|
* shm_unregister() - Unregisters memory shared with the TEE
|
|
* @dev: The TEE device
|
|
* @shm: Pointer to a shared memory object
|
|
* Returns 0 on success or < 0 on failure.
|
|
*/
|
|
int (*shm_unregister)(struct udevice *dev, struct tee_shm *shm);
|
|
};
|
|
|
|
/**
|
|
* __tee_shm_add() - Internal helper function to register shared memory
|
|
* @dev: The TEE device
|
|
* @align: Required alignment of allocated memory block if
|
|
* (@flags & TEE_SHM_ALLOC)
|
|
* @addr: Address of memory block, ignored if (@flags & TEE_SHM_ALLOC)
|
|
* @size: Size of memory block
|
|
* @flags: TEE_SHM_* above
|
|
* @shmp: If the function return 0, this holds the allocated
|
|
* struct tee_shm
|
|
*
|
|
* returns 0 on success or < 0 on failure.
|
|
*/
|
|
int __tee_shm_add(struct udevice *dev, ulong align, void *addr, ulong size,
|
|
u32 flags, struct tee_shm **shmp);
|
|
|
|
/**
|
|
* tee_shm_alloc() - Allocate shared memory
|
|
* @dev: The TEE device
|
|
* @size: Size of memory block
|
|
* @flags: TEE_SHM_* above
|
|
* @shmp: If the function return 0, this holds the allocated
|
|
* struct tee_shm
|
|
*
|
|
* returns 0 on success or < 0 on failure.
|
|
*/
|
|
int tee_shm_alloc(struct udevice *dev, ulong size, u32 flags,
|
|
struct tee_shm **shmp);
|
|
|
|
/**
|
|
* tee_shm_register() - Registers shared memory
|
|
* @dev: The TEE device
|
|
* @addr: Address of memory block
|
|
* @size: Size of memory block
|
|
* @flags: TEE_SHM_* above
|
|
* @shmp: If the function return 0, this holds the allocated
|
|
* struct tee_shm
|
|
*
|
|
* returns 0 on success or < 0 on failure.
|
|
*/
|
|
int tee_shm_register(struct udevice *dev, void *addr, ulong size, u32 flags,
|
|
struct tee_shm **shmp);
|
|
|
|
/**
|
|
* tee_shm_free() - Frees shared memory
|
|
* @shm: Shared memory object
|
|
*/
|
|
void tee_shm_free(struct tee_shm *shm);
|
|
|
|
/**
|
|
* tee_shm_is_registered() - Check register status of shared memory object
|
|
* @shm: Pointer to shared memory object
|
|
* @dev: The TEE device
|
|
*
|
|
* Returns true if the shared memory object is registered for the supplied
|
|
* TEE device
|
|
*/
|
|
bool tee_shm_is_registered(struct tee_shm *shm, struct udevice *dev);
|
|
|
|
/**
|
|
* tee_find_device() - Look up a TEE device
|
|
* @start: if not NULL, continue search after this device
|
|
* @match: function to check TEE device, returns != 0 if the device
|
|
* matches
|
|
* @data: data for match function
|
|
* @vers: if not NULL, version data of TEE device of the device returned
|
|
*
|
|
* Returns a probed TEE device of the first TEE device matched by the
|
|
* match() callback or NULL.
|
|
*/
|
|
struct udevice *tee_find_device(struct udevice *start,
|
|
int (*match)(struct tee_version_data *vers,
|
|
const void *data),
|
|
const void *data,
|
|
struct tee_version_data *vers);
|
|
|
|
/**
|
|
* tee_get_version() - Query capabilities of TEE device
|
|
* @dev: The TEE device
|
|
* @vers: Pointer to version data
|
|
*/
|
|
void tee_get_version(struct udevice *dev, struct tee_version_data *vers);
|
|
|
|
/**
|
|
* tee_open_session() - Open a session to a Trusted Application
|
|
* @dev: The TEE device
|
|
* @arg: Open session arguments
|
|
* @num_param: Number of elements in @param
|
|
* @param: Parameters for Trusted Application
|
|
*
|
|
* Returns < 0 on error else see @arg->ret for result. If @arg->ret is
|
|
* TEE_SUCCESS the session identifier is available in @arg->session.
|
|
*/
|
|
int tee_open_session(struct udevice *dev, struct tee_open_session_arg *arg,
|
|
uint num_param, struct tee_param *param);
|
|
|
|
/**
|
|
* tee_close_session() - Close a session to a Trusted Application
|
|
* @dev: The TEE device
|
|
* @session: Session id
|
|
*
|
|
* Return < 0 on error else 0, regardless the session will not be valid
|
|
* after this function has returned.
|
|
*/
|
|
int tee_close_session(struct udevice *dev, u32 session);
|
|
|
|
/**
|
|
* tee_invoke_func() - Invoke a function in a Trusted Application
|
|
* @dev: The TEE device
|
|
* @arg: Invoke arguments
|
|
* @num_param: Number of elements in @param
|
|
* @param: Parameters for Trusted Application
|
|
*
|
|
* Returns < 0 on error else see @arg->ret for result.
|
|
*/
|
|
int tee_invoke_func(struct udevice *dev, struct tee_invoke_arg *arg,
|
|
uint num_param, struct tee_param *param);
|
|
|
|
/**
|
|
* tee_optee_ta_uuid_from_octets() - Converts to struct tee_optee_ta_uuid
|
|
* @d: Destination struct
|
|
* @s: Source UUID octets
|
|
*
|
|
* Conversion to a struct tee_optee_ta_uuid represantion from binary octet
|
|
* representation.
|
|
*/
|
|
void tee_optee_ta_uuid_from_octets(struct tee_optee_ta_uuid *d,
|
|
const u8 s[TEE_UUID_LEN]);
|
|
|
|
/**
|
|
* tee_optee_ta_uuid_to_octets() - Converts from struct tee_optee_ta_uuid
|
|
* @d: Destination UUID octets
|
|
* @s: Source struct
|
|
*
|
|
* Conversion from a struct tee_optee_ta_uuid represantion to binary octet
|
|
* representation.
|
|
*/
|
|
void tee_optee_ta_uuid_to_octets(u8 d[TEE_UUID_LEN],
|
|
const struct tee_optee_ta_uuid *s);
|
|
|
|
#endif /* __TEE_H */
|