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/usr/include/asm

Name	Size	Mode	Actions
a.out.h	756	0644	edit dl rm
amd_hsmp.h	8892	0644	edit dl rm
auxvec.h	618	0644	edit dl rm
bitsperlong.h	321	0644	edit dl rm
boot.h	323	0644	edit dl rm
bootparam.h	7759	0644	edit dl rm
bpf_perf_event.h	40	0644	edit dl rm
byteorder.h	176	0644	edit dl rm
debugreg.h	3329	0644	edit dl rm
e820.h	2579	0644	edit dl rm
errno.h	31	0644	edit dl rm
fcntl.h	31	0644	edit dl rm
hwcap2.h	270	0644	edit dl rm
hw_breakpoint.h	69	0644	edit dl rm
ioctl.h	31	0644	edit dl rm
ioctls.h	32	0644	edit dl rm
ipcbuf.h	32	0644	edit dl rm
ist.h	854	0644	edit dl rm
kvm.h	11719	0644	edit dl rm
kvm_para.h	4340	0644	edit dl rm
kvm_perf.h	388	0644	edit dl rm
ldt.h	1306	0644	edit dl rm
mce.h	1688	0644	edit dl rm
mman.h	1002	0644	edit dl rm
msgbuf.h	1053	0644	edit dl rm
msr.h	346	0644	edit dl rm
mtrr.h	4225	0644	edit dl rm
param.h	31	0644	edit dl rm
perf_regs.h	1403	0644	edit dl rm
poll.h	30	0644	edit dl rm
posix_types.h	224	0644	edit dl rm
posix_types_32.h	765	0644	edit dl rm
posix_types_64.h	609	0644	edit dl rm
posix_types_x32.h	581	0644	edit dl rm
prctl.h	618	0644	edit dl rm
processor-flags.h	6623	0644	edit dl rm
ptrace-abi.h	2037	0644	edit dl rm
ptrace.h	1495	0644	edit dl rm
resource.h	34	0644	edit dl rm
sembuf.h	1045	0644	edit dl rm
setup.h	6	0644	edit dl rm
sgx.h	8342	0644	edit dl rm
shmbuf.h	1258	0644	edit dl rm
sigcontext.h	9724	0644	edit dl rm
sigcontext32.h	247	0644	edit dl rm
siginfo.h	422	0644	edit dl rm
signal.h	2901	0644	edit dl rm
socket.h	32	0644	edit dl rm
sockios.h	33	0644	edit dl rm
stat.h	3131	0644	edit dl rm
statfs.h	416	0644	edit dl rm
svm.h	9773	0644	edit dl rm
swab.h	724	0644	edit dl rm
termbits.h	34	0644	edit dl rm
termios.h	33	0644	edit dl rm
types.h	152	0644	edit dl rm
ucontext.h	2117	0644	edit dl rm
unistd.h	359	0644	edit dl rm
unistd_32.h	11131	0644	edit dl rm
unistd_64.h	9316	0644	edit dl rm
unistd_x32.h	16419	0644	edit dl rm
vm86.h	3118	0644	edit dl rm
vmx.h	7368	0644	edit dl rm
vsyscall.h	263	0644	edit dl rm

Edit: /usr/include/asm/sgx.h (8342B)

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * Copyright(c) 2016-20 Intel Corporation.
 */
#ifndef _ASM_X86_SGX_H
#define _ASM_X86_SGX_H

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

/**
 * enum sgx_page_flags - page control flags
 * %SGX_PAGE_MEASURE:	Measure the page contents with a sequence of
 *			ENCLS[EEXTEND] operations.
 */
enum sgx_page_flags {
	SGX_PAGE_MEASURE	= 0x01,
};

#define SGX_MAGIC 0xA4

#define SGX_IOC_ENCLAVE_CREATE \
	_IOW(SGX_MAGIC, 0x00, struct sgx_enclave_create)
#define SGX_IOC_ENCLAVE_ADD_PAGES \
	_IOWR(SGX_MAGIC, 0x01, struct sgx_enclave_add_pages)
#define SGX_IOC_ENCLAVE_INIT \
	_IOW(SGX_MAGIC, 0x02, struct sgx_enclave_init)
#define SGX_IOC_ENCLAVE_PROVISION \
	_IOW(SGX_MAGIC, 0x03, struct sgx_enclave_provision)
#define SGX_IOC_VEPC_REMOVE_ALL \
	_IO(SGX_MAGIC, 0x04)
#define SGX_IOC_ENCLAVE_RESTRICT_PERMISSIONS \
	_IOWR(SGX_MAGIC, 0x05, struct sgx_enclave_restrict_permissions)
#define SGX_IOC_ENCLAVE_MODIFY_TYPES \
	_IOWR(SGX_MAGIC, 0x06, struct sgx_enclave_modify_types)
#define SGX_IOC_ENCLAVE_REMOVE_PAGES \
	_IOWR(SGX_MAGIC, 0x07, struct sgx_enclave_remove_pages)

/**
 * struct sgx_enclave_create - parameter structure for the
 *                             %SGX_IOC_ENCLAVE_CREATE ioctl
 * @src:	address for the SECS page data
 */
struct sgx_enclave_create  {
	__u64	src;
};

/**
 * struct sgx_enclave_add_pages - parameter structure for the
 *                                %SGX_IOC_ENCLAVE_ADD_PAGE ioctl
 * @src:	start address for the page data
 * @offset:	starting page offset
 * @length:	length of the data (multiple of the page size)
 * @secinfo:	address for the SECINFO data
 * @flags:	page control flags
 * @count:	number of bytes added (multiple of the page size)
 */
struct sgx_enclave_add_pages {
	__u64 src;
	__u64 offset;
	__u64 length;
	__u64 secinfo;
	__u64 flags;
	__u64 count;
};

/**
 * struct sgx_enclave_init - parameter structure for the
 *                           %SGX_IOC_ENCLAVE_INIT ioctl
 * @sigstruct:	address for the SIGSTRUCT data
 */
struct sgx_enclave_init {
	__u64 sigstruct;
};

/**
 * struct sgx_enclave_provision - parameter structure for the
 *				  %SGX_IOC_ENCLAVE_PROVISION ioctl
 * @fd:		file handle of /dev/sgx_provision
 */
struct sgx_enclave_provision {
	__u64 fd;
};

/**
 * struct sgx_enclave_restrict_permissions - parameters for ioctl
 *                                        %SGX_IOC_ENCLAVE_RESTRICT_PERMISSIONS
 * @offset:	starting page offset (page aligned relative to enclave base
 *		address defined in SECS)
 * @length:	length of memory (multiple of the page size)
 * @permissions:new permission bits for pages in range described by @offset
 *              and @length
 * @result:	(output) SGX result code of ENCLS[EMODPR] function
 * @count:	(output) bytes successfully changed (multiple of page size)
 */
struct sgx_enclave_restrict_permissions {
	__u64 offset;
	__u64 length;
	__u64 permissions;
	__u64 result;
	__u64 count;
};

/**
 * struct sgx_enclave_modify_types - parameters for ioctl
 *                                   %SGX_IOC_ENCLAVE_MODIFY_TYPES
 * @offset:	starting page offset (page aligned relative to enclave base
 *		address defined in SECS)
 * @length:	length of memory (multiple of the page size)
 * @page_type:	new type for pages in range described by @offset and @length
 * @result:	(output) SGX result code of ENCLS[EMODT] function
 * @count:	(output) bytes successfully changed (multiple of page size)
 */
struct sgx_enclave_modify_types {
	__u64 offset;
	__u64 length;
	__u64 page_type;
	__u64 result;
	__u64 count;
};

/**
 * struct sgx_enclave_remove_pages - %SGX_IOC_ENCLAVE_REMOVE_PAGES parameters
 * @offset:	starting page offset (page aligned relative to enclave base
 *		address defined in SECS)
 * @length:	length of memory (multiple of the page size)
 * @count:	(output) bytes successfully changed (multiple of page size)
 *
 * Regular (PT_REG) or TCS (PT_TCS) can be removed from an initialized
 * enclave if the system supports SGX2. First, the %SGX_IOC_ENCLAVE_MODIFY_TYPES
 * ioctl() should be used to change the page type to PT_TRIM. After that
 * succeeds ENCLU[EACCEPT] should be run from within the enclave and then
 * %SGX_IOC_ENCLAVE_REMOVE_PAGES can be used to complete the page removal.
 */
struct sgx_enclave_remove_pages {
	__u64 offset;
	__u64 length;
	__u64 count;
};

struct sgx_enclave_run;

/**
 * typedef sgx_enclave_user_handler_t - Exit handler function accepted by
 *					__vdso_sgx_enter_enclave()
 * @run:	The run instance given by the caller
 *
 * The register parameters contain the snapshot of their values at enclave
 * exit. An invalid ENCLU function number will cause -EINVAL to be returned
 * to the caller.
 *
 * Return:
 * - <= 0:	The given value is returned back to the caller.
 * - > 0:	ENCLU function to invoke, either EENTER or ERESUME.
 */
typedef int (*sgx_enclave_user_handler_t)(long rdi, long rsi, long rdx,
					  long rsp, long r8, long r9,
					  struct sgx_enclave_run *run);

/**
 * struct sgx_enclave_run - the execution context of __vdso_sgx_enter_enclave()
 * @tcs:			TCS used to enter the enclave
 * @function:			The last seen ENCLU function (EENTER, ERESUME or EEXIT)
 * @exception_vector:		The interrupt vector of the exception
 * @exception_error_code:	The exception error code pulled out of the stack
 * @exception_addr:		The address that triggered the exception
 * @user_handler:		User provided callback run on exception
 * @user_data:			Data passed to the user handler
 * @reserved			Reserved for future extensions
 *
 * If @user_handler is provided, the handler will be invoked on all return paths
 * of the normal flow.  The user handler may transfer control, e.g. via a
 * longjmp() call or a C++ exception, without returning to
 * __vdso_sgx_enter_enclave().
 */
struct sgx_enclave_run {
	__u64 tcs;
	__u32 function;
	__u16 exception_vector;
	__u16 exception_error_code;
	__u64 exception_addr;
	__u64 user_handler;
	__u64 user_data;
	__u8  reserved[216];
};

/**
 * typedef vdso_sgx_enter_enclave_t - Prototype for __vdso_sgx_enter_enclave(),
 *				      a vDSO function to enter an SGX enclave.
 * @rdi:	Pass-through value for RDI
 * @rsi:	Pass-through value for RSI
 * @rdx:	Pass-through value for RDX
 * @function:	ENCLU function, must be EENTER or ERESUME
 * @r8:		Pass-through value for R8
 * @r9:		Pass-through value for R9
 * @run:	struct sgx_enclave_run, must be non-NULL
 *
 * NOTE: __vdso_sgx_enter_enclave() does not ensure full compliance with the
 * x86-64 ABI, e.g. doesn't handle XSAVE state.  Except for non-volatile
 * general purpose registers, EFLAGS.DF, and RSP alignment, preserving/setting
 * state in accordance with the x86-64 ABI is the responsibility of the enclave
 * and its runtime, i.e. __vdso_sgx_enter_enclave() cannot be called from C
 * code without careful consideration by both the enclave and its runtime.
 *
 * All general purpose registers except RAX, RBX and RCX are passed as-is to the
 * enclave.  RAX, RBX and RCX are consumed by EENTER and ERESUME and are loaded
 * with @function, asynchronous exit pointer, and @run.tcs respectively.
 *
 * RBP and the stack are used to anchor __vdso_sgx_enter_enclave() to the
 * pre-enclave state, e.g. to retrieve @run.exception and @run.user_handler
 * after an enclave exit.  All other registers are available for use by the
 * enclave and its runtime, e.g. an enclave can push additional data onto the
 * stack (and modify RSP) to pass information to the optional user handler (see
 * below).
 *
 * Most exceptions reported on ENCLU, including those that occur within the
 * enclave, are fixed up and reported synchronously instead of being delivered
 * via a standard signal. Debug Exceptions (#DB) and Breakpoints (#BP) are
 * never fixed up and are always delivered via standard signals. On synchrously
 * reported exceptions, -EFAULT is returned and details about the exception are
 * recorded in @run.exception, the optional sgx_enclave_exception struct.
 *
 * Return:
 * - 0:		ENCLU function was successfully executed.
 * - -EINVAL:	Invalid ENCL number (neither EENTER nor ERESUME).
 */
typedef int (*vdso_sgx_enter_enclave_t)(unsigned long rdi, unsigned long rsi,
					unsigned long rdx, unsigned int function,
					unsigned long r8,  unsigned long r9,
					struct sgx_enclave_run *run);

#endif /* _ASM_X86_SGX_H */

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