/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
/**
 * Copyright(c) 2016-18 Intel Corporation.
 */
#ifndef _UAPI_ASM_X86_SGX_H
#define _UAPI_ASM_X86_SGX_H

#include <linux/types.h>
#include <linux/ioctl.h>

#define SGX_MAGIC 0xA4

#define SGX_IOC_ENCLAVE_CREATE \
	_IOW(SGX_MAGIC, 0x00, struct sgx_enclave_create)
#define SGX_IOC_ENCLAVE_ADD_PAGE \
	_IOW(SGX_MAGIC, 0x01, struct sgx_enclave_add_page)
#define SGX_IOC_ENCLAVE_INIT \
	_IOW(SGX_MAGIC, 0x02, struct sgx_enclave_init)
#define SGX_IOC_ENCLAVE_SET_ATTRIBUTE \
	_IOW(SGX_MAGIC, 0x03, struct sgx_enclave_set_attribute)

/* IOCTL return values */
#define SGX_POWER_LOST_ENCLAVE		0x40000000

/**
 * struct sgx_enclave_create - parameter structure for the
 *                             %SGX_IOC_ENCLAVE_CREATE ioctl
 * @src:	address for the SECS page data
 * @enclave_fd:	file handle to the enclave address space (out)
 */
struct sgx_enclave_create  {
	__u64	src;
	__u64	enclave_fd;
};

/**
 * struct sgx_enclave_add_page - parameter structure for the
 *                               %SGX_IOC_ENCLAVE_ADD_PAGE ioctl
 * @eclave_fd:	file handle to the enclave address space
 * @src:	address for the page data
 * @secinfo:	address for the SECINFO data
 * @mrmask:	bitmask for the measured 256 byte chunks
 */
struct sgx_enclave_add_page {
	__u64	enclave_fd;
	__u64	src;
	__u64	secinfo;
	__u16	mrmask;
} __attribute__((__packed__));


/**
 * struct sgx_enclave_init - parameter structure for the
 *                           %SGX_IOC_ENCLAVE_INIT ioctl
 * @eclave_fd:	file handle to the enclave address space
 * @sigstruct:	address for the SIGSTRUCT data
 */
struct sgx_enclave_init {
	__u64	enclave_fd;
	__u64	sigstruct;
};

/**
 * struct sgx_enclave_set_attribute - parameter structure for the
 *				      %SGX_IOC_ENCLAVE_INIT ioctl
 * @addr:		address within the ELRANGE
 * @eclave_fd:		file handle to the enclave address space
 * @attribute_fd:	file handle of the attribute file in the securityfs
 */
struct sgx_enclave_set_attribute {
	__u64	enclave_fd;
	__u64	attribute_fd;
};

#endif /* _UAPI_ASM_X86_SGX_H */