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/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
/*
* Userspace interface for HYGON Platform Security Processor (PSP)
* commands.
*
* Copyright (C) 2024 Hygon Info Technologies Ltd.
*
* Author: Liyang Han <hanliyang@hygon.cn>
*/
#ifndef __PSP_HYGON_USER_H__
#define __PSP_HYGON_USER_H__
#include <linux/types.h>
/*****************************************************************************/
/***************************** CSV interface *********************************/
/*****************************************************************************/
/**
* CSV guest/platform commands
*/
enum {
CSV_PLATFORM_INIT = 101,
CSV_PLATFORM_SHUTDOWN = 102,
CSV_DOWNLOAD_FIRMWARE = 128,
CSV_HGSC_CERT_IMPORT = 201,
CSV_MAX,
};
/**
* struct csv_user_data_hgsc_cert_import - HGSC_CERT_IMPORT command parameters
*
* @hgscsk_cert_address: HGSCSK certificate chain
* @hgscsk_cert_len: length of HGSCSK certificate
* @hgsc_cert_address: HGSC certificate chain
* @hgsc_cert_len: length of HGSC certificate
*/
struct csv_user_data_hgsc_cert_import {
__u64 hgscsk_cert_address; /* In */
__u32 hgscsk_cert_len; /* In */
__u64 hgsc_cert_address; /* In */
__u32 hgsc_cert_len; /* In */
} __attribute__((packed));
/**
* struct csv_user_data_download_firmware - DOWNLOAD_FIRMWARE command parameters
*
* @address: physical address of CSV firmware image
* @length: length of the CSV firmware image
*/
struct csv_user_data_download_firmware {
__u64 address; /* In */
__u32 length; /* In */
} __attribute__((packed));
#endif /* __PSP_HYGON_USER_H__ */