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      1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2 /*
      3  * Definitions for the VTPM proxy driver
      4  * Copyright (c) 2015, 2016, IBM Corporation
      5  * Copyright (C) 2016 Intel Corporation
      6  *
      7  * This program is free software; you can redistribute it and/or modify it
      8  * under the terms and conditions of the GNU General Public License,
      9  * version 2, as published by the Free Software Foundation.
     10  *
     11  * This program is distributed in the hope it will be useful, but WITHOUT
     12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
     14  * more details.
     15  */
     16 
     17 #ifndef _UAPI_LINUX_VTPM_PROXY_H
     18 #define _UAPI_LINUX_VTPM_PROXY_H
     19 
     20 #include <linux/types.h>
     21 #include <linux/ioctl.h>
     22 
     23 /**
     24  * enum vtpm_proxy_flags - flags for the proxy TPM
     25  * @VTPM_PROXY_FLAG_TPM2:	the proxy TPM uses TPM 2.0 protocol
     26  */
     27 enum vtpm_proxy_flags {
     28 	VTPM_PROXY_FLAG_TPM2	= 1,
     29 };
     30 
     31 /**
     32  * struct vtpm_proxy_new_dev - parameter structure for the
     33  *                             %VTPM_PROXY_IOC_NEW_DEV ioctl
     34  * @flags:	flags for the proxy TPM
     35  * @tpm_num:	index of the TPM device
     36  * @fd:		the file descriptor used by the proxy TPM
     37  * @major:	the major number of the TPM device
     38  * @minor:	the minor number of the TPM device
     39  */
     40 struct vtpm_proxy_new_dev {
     41 	__u32 flags;         /* input */
     42 	__u32 tpm_num;       /* output */
     43 	__u32 fd;            /* output */
     44 	__u32 major;         /* output */
     45 	__u32 minor;         /* output */
     46 };
     47 
     48 #define VTPM_PROXY_IOC_NEW_DEV	_IOWR(0xa1, 0x00, struct vtpm_proxy_new_dev)
     49 
     50 /* vendor specific commands to set locality */
     51 #define TPM2_CC_SET_LOCALITY	0x20001000
     52 #define TPM_ORD_SET_LOCALITY	0x20001000
     53 
     54 #endif /* _UAPI_LINUX_VTPM_PROXY_H */
     55