cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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toshiba.h (1945B)

      1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
      2/* toshiba.h -- Linux driver for accessing the SMM on Toshiba laptops 
      3 *
      4 * Copyright (c) 1996-2000  Jonathan A. Buzzard (jonathan@buzzard.org.uk)
      5 * Copyright (c) 2015  Azael Avalos <coproscefalo@gmail.com>
      6 *
      7 * Thanks to Juergen Heinzl <juergen@monocerus.demon.co.uk> for the pointers
      8 * on making sure the structure is aligned and packed.
      9 *
     10 * This program is free software; you can redistribute it and/or modify it
     11 * under the terms of the GNU General Public License as published by the
     12 * Free Software Foundation; either version 2, or (at your option) any
     13 * later version.
     14 *
     15 * This program is distributed in the hope that it will be useful, but
     16 * WITHOUT ANY WARRANTY; without even the implied warranty of
     17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     18 * General Public License for more details.
     19 *
     20 */
     21
     22#ifndef _UAPI_LINUX_TOSHIBA_H
     23#define _UAPI_LINUX_TOSHIBA_H
     24
     25/*
     26 * Toshiba modules paths
     27 */
     28
     29#define TOSH_PROC		"/proc/toshiba"
     30#define TOSH_DEVICE		"/dev/toshiba"
     31#define TOSHIBA_ACPI_PROC	"/proc/acpi/toshiba"
     32#define TOSHIBA_ACPI_DEVICE	"/dev/toshiba_acpi"
     33
     34/*
     35 * Toshiba SMM structure
     36 */
     37
     38typedef struct {
     39	unsigned int eax;
     40	unsigned int ebx __attribute__ ((packed));
     41	unsigned int ecx __attribute__ ((packed));
     42	unsigned int edx __attribute__ ((packed));
     43	unsigned int esi __attribute__ ((packed));
     44	unsigned int edi __attribute__ ((packed));
     45} SMMRegisters;
     46
     47/*
     48 * IOCTLs (0x90 - 0x91)
     49 */
     50
     51#define TOSH_SMM		_IOWR('t', 0x90, SMMRegisters)
     52/*
     53 * Convenience toshiba_acpi command.
     54 *
     55 * The System Configuration Interface (SCI) is opened/closed internally
     56 * to avoid userspace of buggy BIOSes.
     57 *
     58 * The toshiba_acpi module checks whether the eax register is set with
     59 * SCI_GET (0xf300) or SCI_SET (0xf400), returning -EINVAL if not.
     60 */
     61#define TOSHIBA_ACPI_SCI	_IOWR('t', 0x91, SMMRegisters)
     62
     63
     64#endif /* _UAPI_LINUX_TOSHIBA_H */