780711b60c
Expand SMCInvoke API to support possible future requirements. Change-Id: I9f6031751489c43a27afc2860a1cb9f87c7ebb87 Signed-off-by: Reut Zysman <quic_rzysman@quicinc.com>
111 строки
3.0 KiB
C
111 строки
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
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/*
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* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
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* Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#ifndef _SMCINVOKE_H_
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#define _SMCINVOKE_H_
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#include <linux/types.h>
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#include <linux/ioctl.h>
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#define SMCINVOKE_USERSPACE_OBJ_NULL -1
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#define DEFAULT_CB_OBJ_THREAD_CNT 4
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#define SMCINVOKE_TZ_MIN_BUF_SIZE 4096
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struct smcinvoke_buf {
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__u64 addr;
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__u64 size;
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};
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struct smcinvoke_obj {
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__s64 fd;
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__s64 cb_server_fd;
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__s64 reserved;
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};
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union smcinvoke_arg {
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struct smcinvoke_buf b;
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struct smcinvoke_obj o;
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};
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/*
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* struct smcinvoke_cmd_req: This structure is transparently sent to TEE
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* @op - Operation to be performed
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* @counts - number of aruments passed
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* @result - result of invoke operation
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* @argsize - size of each of arguments
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* @args - args is pointer to buffer having all arguments
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* @reserved: IN/OUT: Usage is not defined but should be set to 0
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*/
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struct smcinvoke_cmd_req {
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__u32 op;
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__u32 counts;
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__s32 result;
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__u32 argsize;
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__u64 args;
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__s64 reserved;
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};
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/*
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* struct smcinvoke_accept: structure to process CB req from TEE
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* @has_resp: IN: Whether IOCTL is carrying response data
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* @result: IN: Outcome of operation op
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* @op: OUT: Operation to be performed on target object
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* @counts: OUT: Number of arguments, embedded in buffer pointed by
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* buf_addr, to complete operation
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* @reserved: IN/OUT: Usage is not defined but should be set to 0.
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* @argsize: IN: Size of any argument, all of equal size, embedded
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* in buffer pointed by buf_addr
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* @txn_id: OUT: An id that should be passed as it is for response
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* @cbobj_id: OUT: Callback object which is target of operation op
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* @buf_len: IN: Len of buffer pointed by buf_addr
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* @buf_addr: IN: Buffer containing all arguments which are needed
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* to complete operation op
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*/
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struct smcinvoke_accept {
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__u32 has_resp;
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__s32 result;
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__u32 op;
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__u32 counts;
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__s32 reserved;
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__u32 argsize;
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__u64 txn_id;
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__s64 cbobj_id;
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__u64 buf_len;
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__u64 buf_addr;
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};
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/*
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* @cb_buf_size: IN: Max buffer size for any callback obj implemented by client
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* @reserved: IN/OUT: Usage is not defined but should be set to 0
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*/
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struct smcinvoke_server {
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__u64 cb_buf_size;
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__s64 reserved;
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};
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#define SMCINVOKE_IOC_MAGIC 0x98
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#define SMCINVOKE_IOCTL_INVOKE_REQ \
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_IOWR(SMCINVOKE_IOC_MAGIC, 1, struct smcinvoke_cmd_req)
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#define SMCINVOKE_IOCTL_ACCEPT_REQ \
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_IOWR(SMCINVOKE_IOC_MAGIC, 2, struct smcinvoke_accept)
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#define SMCINVOKE_IOCTL_SERVER_REQ \
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_IOWR(SMCINVOKE_IOC_MAGIC, 3, struct smcinvoke_server)
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#define SMCINVOKE_IOCTL_ACK_LOCAL_OBJ \
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_IOWR(SMCINVOKE_IOC_MAGIC, 4, __s64)
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/*
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* smcinvoke logging buffer is for communicating with the smcinvoke driver additional
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* info for debugging to be included in driver's log (if any)
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*/
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#define SMCINVOKE_LOG_BUF_SIZE 100
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#define SMCINVOKE_IOCTL_LOG \
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_IOC(_IOC_READ|_IOC_WRITE, SMCINVOKE_IOC_MAGIC, 255, SMCINVOKE_LOG_BUF_SIZE)
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#endif /* _SMCINVOKE_H_ */
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