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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error_inject.c (992B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/* Error injection handling.
      3 *
      4 * Copyright (C) 2021 Red Hat, Inc. All Rights Reserved.
      5 * Written by David Howells (dhowells@redhat.com)
      6 */
      7
      8#include <linux/sysctl.h>
      9#include "internal.h"
     10
     11unsigned int cachefiles_error_injection_state;
     12
     13static struct ctl_table_header *cachefiles_sysctl;
     14static struct ctl_table cachefiles_sysctls[] = {
     15	{
     16		.procname	= "error_injection",
     17		.data		= &cachefiles_error_injection_state,
     18		.maxlen		= sizeof(unsigned int),
     19		.mode		= 0644,
     20		.proc_handler	= proc_douintvec,
     21	},
     22	{}
     23};
     24
     25static struct ctl_table cachefiles_sysctls_root[] = {
     26	{
     27		.procname	= "cachefiles",
     28		.mode		= 0555,
     29		.child		= cachefiles_sysctls,
     30	},
     31	{}
     32};
     33
     34int __init cachefiles_register_error_injection(void)
     35{
     36	cachefiles_sysctl = register_sysctl_table(cachefiles_sysctls_root);
     37	if (!cachefiles_sysctl)
     38		return -ENOMEM;
     39	return 0;
     40
     41}
     42
     43void cachefiles_unregister_error_injection(void)
     44{
     45	unregister_sysctl_table(cachefiles_sysctl);
     46}