4 * Copyright IBM, Corp. 2012
5 * Copyright Red Hat, Inc. 2012
8 * Anthony Liguori <aliguori@us.ibm.com>
9 * Paolo Bonzini <pbonzini@redhat.com>
11 * This work is licensed under the terms of the GNU GPL, version 2 or later.
12 * See the COPYING file in the top-level directory.
18 #include <sys/types.h>
19 #include <sys/socket.h>
34 QTestState *global_qtest;
40 bool irq_level[MAX_IRQ];
43 char *socket_path, *qmp_socket_path;
46 #define g_assert_no_errno(ret) do { \
47 g_assert_cmpint(ret, !=, -1); \
50 static int init_socket(const char *socket_path)
52 struct sockaddr_un addr;
56 sock = socket(PF_UNIX, SOCK_STREAM, 0);
57 g_assert_no_errno(sock);
59 addr.sun_family = AF_UNIX;
60 snprintf(addr.sun_path, sizeof(addr.sun_path), "%s", socket_path);
61 qemu_set_cloexec(sock);
64 ret = bind(sock, (struct sockaddr *)&addr, sizeof(addr));
65 } while (ret == -1 && errno == EINTR);
66 g_assert_no_errno(ret);
72 static int socket_accept(int sock)
74 struct sockaddr_un addr;
78 addrlen = sizeof(addr);
80 ret = accept(sock, (struct sockaddr *)&addr, &addrlen);
81 } while (ret == -1 && errno == EINTR);
82 g_assert_no_errno(ret);
88 QTestState *qtest_init(const char *extra_args)
91 int sock, qmpsock, ret, i;
94 const char *qemu_binary;
97 qemu_binary = getenv("QTEST_QEMU_BINARY");
98 g_assert(qemu_binary != NULL);
100 s = g_malloc(sizeof(*s));
102 s->socket_path = g_strdup_printf("/tmp/qtest-%d.sock", getpid());
103 s->qmp_socket_path = g_strdup_printf("/tmp/qtest-%d.qmp", getpid());
104 pid_file = g_strdup_printf("/tmp/qtest-%d.pid", getpid());
106 sock = init_socket(s->socket_path);
107 qmpsock = init_socket(s->qmp_socket_path);
111 command = g_strdup_printf("%s "
112 "-qtest unix:%s,nowait "
113 "-qtest-log /dev/null "
114 "-qmp unix:%s,nowait "
116 "-machine accel=qtest "
117 "%s", qemu_binary, s->socket_path,
118 s->qmp_socket_path, pid_file,
121 ret = system(command);
126 s->fd = socket_accept(sock);
127 s->qmp_fd = socket_accept(qmpsock);
129 s->rx = g_string_new("");
130 s->pid_file = pid_file;
131 for (i = 0; i < MAX_IRQ; i++) {
132 s->irq_level[i] = false;
135 /* Read the QMP greeting and then do the handshake */
137 qtest_qmp(s, "{ 'execute': 'qmp_capabilities' }");
142 void qtest_quit(QTestState *s)
147 f = fopen(s->pid_file, "r");
149 if (fgets(buffer, sizeof(buffer), f)) {
150 pid_t pid = atoi(buffer);
154 waitpid(pid, &status, 0);
161 unlink(s->socket_path);
162 unlink(s->qmp_socket_path);
164 g_free(s->socket_path);
165 g_free(s->qmp_socket_path);
168 static void socket_sendf(int fd, const char *fmt, va_list ap)
173 str = g_strdup_vprintf(fmt, ap);
177 while (offset < size) {
180 len = write(fd, str + offset, size - offset);
181 if (len == -1 && errno == EINTR) {
185 g_assert_no_errno(len);
186 g_assert_cmpint(len, >, 0);
192 static void GCC_FMT_ATTR(2, 3) qtest_sendf(QTestState *s, const char *fmt, ...)
197 socket_sendf(s->fd, fmt, ap);
201 static GString *qtest_recv_line(QTestState *s)
207 while ((eol = strchr(s->rx->str, '\n')) == NULL) {
211 len = read(s->fd, buffer, sizeof(buffer));
212 if (len == -1 && errno == EINTR) {
216 if (len == -1 || len == 0) {
217 fprintf(stderr, "Broken pipe\n");
221 g_string_append_len(s->rx, buffer, len);
224 offset = eol - s->rx->str;
225 line = g_string_new_len(s->rx->str, offset);
226 g_string_erase(s->rx, 0, offset + 1);
231 static gchar **qtest_rsp(QTestState *s, int expected_args)
238 line = qtest_recv_line(s);
239 words = g_strsplit(line->str, " ", 0);
240 g_string_free(line, TRUE);
242 if (strcmp(words[0], "IRQ") == 0) {
245 g_assert(words[1] != NULL);
246 g_assert(words[2] != NULL);
248 irq = strtoul(words[2], NULL, 0);
249 g_assert_cmpint(irq, >=, 0);
250 g_assert_cmpint(irq, <, MAX_IRQ);
252 if (strcmp(words[1], "raise") == 0) {
253 s->irq_level[irq] = true;
255 s->irq_level[irq] = false;
262 g_assert(words[0] != NULL);
263 g_assert_cmpstr(words[0], ==, "OK");
266 for (i = 0; i < expected_args; i++) {
267 g_assert(words[i] != NULL);
276 void qtest_qmp(QTestState *s, const char *fmt, ...)
279 bool has_reply = false;
282 /* Send QMP request */
284 socket_sendf(s->qmp_fd, fmt, ap);
288 while (!has_reply || nesting > 0) {
292 len = read(s->qmp_fd, &c, 1);
293 if (len == -1 && errno == EINTR) {
297 if (len == -1 || len == 0) {
298 fprintf(stderr, "Broken pipe\n");
314 const char *qtest_get_arch(void)
316 const char *qemu = getenv("QTEST_QEMU_BINARY");
317 const char *end = strrchr(qemu, '/');
319 return end + strlen("/qemu-system-");
322 bool qtest_get_irq(QTestState *s, int num)
324 /* dummy operation in order to make sure irq is up to date */
327 return s->irq_level[num];
330 static int64_t qtest_clock_rsp(QTestState *s)
334 words = qtest_rsp(s, 2);
335 clock = g_ascii_strtoll(words[1], NULL, 0);
340 int64_t qtest_clock_step_next(QTestState *s)
342 qtest_sendf(s, "clock_step\n");
343 return qtest_clock_rsp(s);
346 int64_t qtest_clock_step(QTestState *s, int64_t step)
348 qtest_sendf(s, "clock_step %"PRIi64"\n", step);
349 return qtest_clock_rsp(s);
352 int64_t qtest_clock_set(QTestState *s, int64_t val)
354 qtest_sendf(s, "clock_set %"PRIi64"\n", val);
355 return qtest_clock_rsp(s);
358 void qtest_irq_intercept_out(QTestState *s, const char *qom_path)
360 qtest_sendf(s, "irq_intercept_out %s\n", qom_path);
364 void qtest_irq_intercept_in(QTestState *s, const char *qom_path)
366 qtest_sendf(s, "irq_intercept_in %s\n", qom_path);
370 static void qtest_out(QTestState *s, const char *cmd, uint16_t addr, uint32_t value)
372 qtest_sendf(s, "%s 0x%x 0x%x\n", cmd, addr, value);
376 void qtest_outb(QTestState *s, uint16_t addr, uint8_t value)
378 qtest_out(s, "outb", addr, value);
381 void qtest_outw(QTestState *s, uint16_t addr, uint16_t value)
383 qtest_out(s, "outw", addr, value);
386 void qtest_outl(QTestState *s, uint16_t addr, uint32_t value)
388 qtest_out(s, "outl", addr, value);
391 static uint32_t qtest_in(QTestState *s, const char *cmd, uint16_t addr)
396 qtest_sendf(s, "%s 0x%x\n", cmd, addr);
397 args = qtest_rsp(s, 2);
398 value = strtoul(args[1], NULL, 0);
404 uint8_t qtest_inb(QTestState *s, uint16_t addr)
406 return qtest_in(s, "inb", addr);
409 uint16_t qtest_inw(QTestState *s, uint16_t addr)
411 return qtest_in(s, "inw", addr);
414 uint32_t qtest_inl(QTestState *s, uint16_t addr)
416 return qtest_in(s, "inl", addr);
419 static int hex2nib(char ch)
421 if (ch >= '0' && ch <= '9') {
423 } else if (ch >= 'a' && ch <= 'f') {
424 return 10 + (ch - 'a');
425 } else if (ch >= 'A' && ch <= 'F') {
426 return 10 + (ch - 'a');
432 void qtest_memread(QTestState *s, uint64_t addr, void *data, size_t size)
438 qtest_sendf(s, "read 0x%" PRIx64 " 0x%zx\n", addr, size);
439 args = qtest_rsp(s, 2);
441 for (i = 0; i < size; i++) {
442 ptr[i] = hex2nib(args[1][2 + (i * 2)]) << 4;
443 ptr[i] |= hex2nib(args[1][2 + (i * 2) + 1]);
449 void qtest_add_func(const char *str, void (*fn))
451 gchar *path = g_strdup_printf("/%s/%s", qtest_get_arch(), str);
452 g_test_add_func(path, fn);
455 void qtest_memwrite(QTestState *s, uint64_t addr, const void *data, size_t size)
457 const uint8_t *ptr = data;
460 qtest_sendf(s, "write 0x%" PRIx64 " 0x%zx 0x", addr, size);
461 for (i = 0; i < size; i++) {
462 qtest_sendf(s, "%02x", ptr[i]);
464 qtest_sendf(s, "\n");