1// SPDX-License-Identifier: GPL-2.0-or-later
2
3#include <errno.h>
4#include <fcntl.h>
5#include <signal.h>
6#include <stdio.h>
7#include <string.h>
8#include <sys/ioctl.h>
9#include <sys/mman.h>
10#include <sys/stat.h>
11#include <sys/types.h>
12#include <unistd.h>
13
14#include "vas-api.h"
15#include "utils.h"
16
17static bool faulted;
18
19static void sigbus_handler(int n, siginfo_t *info, void *ctxt_v)
20{
21	ucontext_t *ctxt = (ucontext_t *)ctxt_v;
22	struct pt_regs *regs = ctxt->uc_mcontext.regs;
23
24	faulted = true;
25	regs->nip += 4;
26}
27
28static int test_ra_error(void)
29{
30	struct vas_tx_win_open_attr attr;
31	int fd, *paste_addr;
32	char *devname = "/dev/crypto/nx-gzip";
33	struct sigaction act = {
34		.sa_sigaction = sigbus_handler,
35		.sa_flags = SA_SIGINFO,
36	};
37
38	memset(&attr, 0, sizeof(attr));
39	attr.version = 1;
40	attr.vas_id = 0;
41
42	SKIP_IF(access(devname, F_OK));
43
44	fd = open(devname, O_RDWR);
45	FAIL_IF(fd < 0);
46	FAIL_IF(ioctl(fd, VAS_TX_WIN_OPEN, &attr) < 0);
47	FAIL_IF(sigaction(SIGBUS, &act, NULL) != 0);
48
49	paste_addr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0ULL);
50
51	/* The following assignment triggers exception */
52	mb();
53	*paste_addr = 1;
54	mb();
55
56	FAIL_IF(!faulted);
57
58	return 0;
59}
60
61int main(void)
62{
63	return test_harness(test_ra_error, "inject-ra-err");
64}
65
66