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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2015 Intel Corporation
* Author: Tony Luck
*
* This software may be redistributed and/or modified under the terms of
* the GNU General Public License ("GPL") version 2 only as published by the
* Free Software Foundation.
*/
/*
* Allocate memory - use EINJ to inject a bunch of soft errors,
* then consume them all as fast a possible.
*/
#include "einj.h"
extern unsigned long long vtop(unsigned long long addr, pid_t pid);
volatile int trigger;
char *progname;
long pagesize;
int Sflag;
#define BUFSZ (64 * 1024)
static void inject(int nerrors, double interval)
{
char *b, *buf;
long long paddr;
int i;
unsigned long s, e;
int bufsz = nerrors * 4096;
pid_t pid;
pid = getpid();
buf = malloc(bufsz);
if (buf == NULL) {
perror("malloc");
exit(1);
}
memset(buf, '*', bufsz);
for (i = 0; i < nerrors; i++) {
b = buf + i * 4096;
paddr = vtop((unsigned long long)b, pid);
printf("%d: vaddr = %p paddr = %llx\n", i, b, paddr);
wfile(EINJ_ADDR, paddr);
wfile(EINJ_DOIT, 1);
/* wait a bit to make sure SMI is all done on all cpus */
usleep((int)(interval * 1.0e6));
}
/* Trigger error by reading from target location */
for (i = 0; i < bufsz; i++)
trigger += *(buf + i);
/* wait a bit to allow CMCI handlers to complete */
usleep((int)(interval * 1.0e6));
}
int main(int argc, char **argv)
{
int nerrors = (argc > 1) ? atoi(argv[1]) : 20;
double interval = (argc > 2) ? atof(argv[2]) : 1.0;
progname = argv[0];
wfile(EINJ_ETYPE, 0x8);
wfile(EINJ_MASK, ~0x0ul);
wfile(EINJ_NOTRIGGER, 1);
inject(nerrors, interval);
return 0;
}
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