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Anthony Liguoric7f0f3b2012-03-28 15:42:02 +02001/*
2 * Test Server
3 *
4 * Copyright IBM, Corp. 2011
5 *
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.com>
8 *
9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
10 * See the COPYING file in the top-level directory.
11 *
12 */
13
Paolo Bonzini9c17d612012-12-17 18:20:04 +010014#include "sysemu/qtest.h"
Paolo Bonzini20288342012-03-28 15:42:03 +020015#include "hw/qdev.h"
Paolo Bonzinidccfcd02013-04-08 16:55:25 +020016#include "sysemu/char.h"
Paolo Bonzini022c62c2012-12-17 18:19:49 +010017#include "exec/ioport.h"
18#include "exec/memory.h"
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +020019#include "hw/irq.h"
Eduardo Habkost3a6ce512014-09-26 17:45:26 -030020#include "sysemu/accel.h"
Paolo Bonzini9c17d612012-12-17 18:20:04 +010021#include "sysemu/sysemu.h"
22#include "sysemu/cpus.h"
Sebastian Tanase1ad95802014-07-25 11:56:28 +020023#include "qemu/config-file.h"
24#include "qemu/option.h"
25#include "qemu/error-report.h"
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +020026
27#define MAX_IRQ 256
28
liguangd5286af2013-01-24 13:03:27 +080029bool qtest_allowed;
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +020030
Paolo Bonzini20288342012-03-28 15:42:03 +020031static DeviceState *irq_intercept_dev;
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +020032static FILE *qtest_log_fp;
33static CharDriverState *qtest_chr;
34static GString *inbuf;
35static int irq_levels[MAX_IRQ];
Anthony Liguori6e924662012-03-30 14:04:04 -050036static qemu_timeval start_time;
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +020037static bool qtest_opened;
38
Anthony Liguori6b7cff72012-03-30 12:53:54 -050039#define FMT_timeval "%ld.%06ld"
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +020040
41/**
42 * QTest Protocol
43 *
44 * Line based protocol, request/response based. Server can send async messages
45 * so clients should always handle many async messages before the response
46 * comes in.
47 *
48 * Valid requests
49 *
Paolo Bonzini8156be52012-03-28 15:42:04 +020050 * Clock management:
51 *
Alex Blighbc72ad62013-08-21 16:03:08 +010052 * The qtest client is completely in charge of the QEMU_CLOCK_VIRTUAL. qtest commands
Paolo Bonzini8156be52012-03-28 15:42:04 +020053 * let you adjust the value of the clock (monotonically). All the commands
54 * return the current value of the clock in nanoseconds.
55 *
56 * > clock_step
57 * < OK VALUE
58 *
59 * Advance the clock to the next deadline. Useful when waiting for
60 * asynchronous events.
61 *
62 * > clock_step NS
63 * < OK VALUE
64 *
65 * Advance the clock by NS nanoseconds.
66 *
67 * > clock_set NS
68 * < OK VALUE
69 *
70 * Advance the clock to NS nanoseconds (do nothing if it's already past).
71 *
72 * PIO and memory access:
73 *
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +020074 * > outb ADDR VALUE
75 * < OK
76 *
77 * > outw ADDR VALUE
78 * < OK
79 *
80 * > outl ADDR VALUE
81 * < OK
82 *
83 * > inb ADDR
84 * < OK VALUE
85 *
86 * > inw ADDR
87 * < OK VALUE
88 *
89 * > inl ADDR
90 * < OK VALUE
91 *
Andreas Färber872536b2013-02-16 22:44:03 +010092 * > writeb ADDR VALUE
93 * < OK
94 *
95 * > writew ADDR VALUE
96 * < OK
97 *
98 * > writel ADDR VALUE
99 * < OK
100 *
101 * > writeq ADDR VALUE
102 * < OK
103 *
104 * > readb ADDR
105 * < OK VALUE
106 *
107 * > readw ADDR
108 * < OK VALUE
109 *
110 * > readl ADDR
111 * < OK VALUE
112 *
113 * > readq ADDR
114 * < OK VALUE
115 *
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200116 * > read ADDR SIZE
117 * < OK DATA
118 *
119 * > write ADDR SIZE DATA
120 * < OK
121 *
John Snow7a6a7402015-05-22 14:13:44 -0400122 * > b64read ADDR SIZE
123 * < OK B64_DATA
124 *
125 * > b64write ADDR SIZE B64_DATA
126 * < OK
127 *
John Snow4d007962015-05-22 14:13:44 -0400128 * > memset ADDR SIZE VALUE
129 * < OK
130 *
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200131 * ADDR, SIZE, VALUE are all integers parsed with strtoul() with a base of 0.
132 *
133 * DATA is an arbitrarily long hex number prefixed with '0x'. If it's smaller
134 * than the expected size, the value will be zero filled at the end of the data
135 * sequence.
136 *
John Snow7a6a7402015-05-22 14:13:44 -0400137 * B64_DATA is an arbitrarily long base64 encoded string.
138 * If the sizes do not match, the data will be truncated.
139 *
Paolo Bonzini20288342012-03-28 15:42:03 +0200140 * IRQ management:
141 *
142 * > irq_intercept_in QOM-PATH
143 * < OK
144 *
145 * > irq_intercept_out QOM-PATH
146 * < OK
147 *
148 * Attach to the gpio-in (resp. gpio-out) pins exported by the device at
149 * QOM-PATH. When the pin is triggered, one of the following async messages
150 * will be printed to the qtest stream:
151 *
152 * IRQ raise NUM
153 * IRQ lower NUM
154 *
155 * where NUM is an IRQ number. For the PC, interrupts can be intercepted
156 * simply with "irq_intercept_in ioapic" (note that IRQ0 comes out with
157 * NUM=0 even though it is remapped to GSI 2).
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200158 */
159
160static int hex2nib(char ch)
161{
162 if (ch >= '0' && ch <= '9') {
163 return ch - '0';
164 } else if (ch >= 'a' && ch <= 'f') {
165 return 10 + (ch - 'a');
166 } else if (ch >= 'A' && ch <= 'F') {
Sergey Fedorov2a802aa2014-05-27 16:15:20 +0400167 return 10 + (ch - 'A');
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200168 } else {
169 return -1;
170 }
171}
172
Anthony Liguori6e924662012-03-30 14:04:04 -0500173static void qtest_get_time(qemu_timeval *tv)
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200174{
Anthony Liguori6e924662012-03-30 14:04:04 -0500175 qemu_gettimeofday(tv);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200176 tv->tv_sec -= start_time.tv_sec;
177 tv->tv_usec -= start_time.tv_usec;
178 if (tv->tv_usec < 0) {
179 tv->tv_usec += 1000000;
180 tv->tv_sec -= 1;
181 }
182}
183
184static void qtest_send_prefix(CharDriverState *chr)
185{
Anthony Liguori6e924662012-03-30 14:04:04 -0500186 qemu_timeval tv;
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200187
188 if (!qtest_log_fp || !qtest_opened) {
189 return;
190 }
191
192 qtest_get_time(&tv);
193 fprintf(qtest_log_fp, "[S +" FMT_timeval "] ",
Richard Henderson35aa3fb2013-08-20 13:53:25 -0700194 (long) tv.tv_sec, (long) tv.tv_usec);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200195}
196
John Snow7a6a7402015-05-22 14:13:44 -0400197static void GCC_FMT_ATTR(1, 2) qtest_log_send(const char *fmt, ...)
198{
199 va_list ap;
200
201 if (!qtest_log_fp || !qtest_opened) {
202 return;
203 }
204
205 qtest_send_prefix(NULL);
206
207 va_start(ap, fmt);
208 vfprintf(qtest_log_fp, fmt, ap);
209 va_end(ap);
210}
211
John Snow332cc7e2015-05-22 14:13:43 -0400212static void do_qtest_send(CharDriverState *chr, const char *str, size_t len)
213{
214 qemu_chr_fe_write_all(chr, (uint8_t *)str, len);
215 if (qtest_log_fp && qtest_opened) {
216 fprintf(qtest_log_fp, "%s", str);
217 }
218}
219
220static void qtest_send(CharDriverState *chr, const char *str)
221{
222 do_qtest_send(chr, str, strlen(str));
223}
224
225static void GCC_FMT_ATTR(2, 3) qtest_sendf(CharDriverState *chr,
226 const char *fmt, ...)
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200227{
228 va_list ap;
John Snow332cc7e2015-05-22 14:13:43 -0400229 gchar *buffer;
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200230
231 va_start(ap, fmt);
John Snow332cc7e2015-05-22 14:13:43 -0400232 buffer = g_strdup_vprintf(fmt, ap);
233 qtest_send(chr, buffer);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200234 va_end(ap);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200235}
236
Paolo Bonzini20288342012-03-28 15:42:03 +0200237static void qtest_irq_handler(void *opaque, int n, int level)
238{
Peter Crosthwaite60a79012014-09-25 22:21:31 -0700239 qemu_irq old_irq = *(qemu_irq *)opaque;
240 qemu_set_irq(old_irq, level);
Paolo Bonzini20288342012-03-28 15:42:03 +0200241
242 if (irq_levels[n] != level) {
243 CharDriverState *chr = qtest_chr;
244 irq_levels[n] = level;
245 qtest_send_prefix(chr);
John Snow332cc7e2015-05-22 14:13:43 -0400246 qtest_sendf(chr, "IRQ %s %d\n",
247 level ? "raise" : "lower", n);
Paolo Bonzini20288342012-03-28 15:42:03 +0200248 }
249}
250
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200251static void qtest_process_command(CharDriverState *chr, gchar **words)
252{
253 const gchar *command;
254
255 g_assert(words);
256
257 command = words[0];
258
259 if (qtest_log_fp) {
Anthony Liguori6e924662012-03-30 14:04:04 -0500260 qemu_timeval tv;
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200261 int i;
262
263 qtest_get_time(&tv);
264 fprintf(qtest_log_fp, "[R +" FMT_timeval "]",
Richard Henderson35aa3fb2013-08-20 13:53:25 -0700265 (long) tv.tv_sec, (long) tv.tv_usec);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200266 for (i = 0; words[i]; i++) {
267 fprintf(qtest_log_fp, " %s", words[i]);
268 }
269 fprintf(qtest_log_fp, "\n");
270 }
271
272 g_assert(command);
Paolo Bonzini20288342012-03-28 15:42:03 +0200273 if (strcmp(words[0], "irq_intercept_out") == 0
274 || strcmp(words[0], "irq_intercept_in") == 0) {
Peter Crosthwaitea5f54292014-05-19 23:30:58 -0700275 DeviceState *dev;
276 NamedGPIOList *ngl;
Paolo Bonzini20288342012-03-28 15:42:03 +0200277
278 g_assert(words[1]);
279 dev = DEVICE(object_resolve_path(words[1], NULL));
280 if (!dev) {
281 qtest_send_prefix(chr);
282 qtest_send(chr, "FAIL Unknown device\n");
283 return;
284 }
285
286 if (irq_intercept_dev) {
287 qtest_send_prefix(chr);
288 if (irq_intercept_dev != dev) {
289 qtest_send(chr, "FAIL IRQ intercept already enabled\n");
290 } else {
291 qtest_send(chr, "OK\n");
292 }
293 return;
294 }
295
Peter Crosthwaitea5f54292014-05-19 23:30:58 -0700296 QLIST_FOREACH(ngl, &dev->gpios, node) {
297 /* We don't support intercept of named GPIOs yet */
298 if (ngl->name) {
299 continue;
300 }
301 if (words[0][14] == 'o') {
Peter Crosthwaite60a79012014-09-25 22:21:31 -0700302 int i;
303 for (i = 0; i < ngl->num_out; ++i) {
304 qemu_irq *disconnected = g_new0(qemu_irq, 1);
305 qemu_irq icpt = qemu_allocate_irq(qtest_irq_handler,
306 disconnected, i);
307
308 *disconnected = qdev_intercept_gpio_out(dev, icpt,
309 ngl->name, i);
310 }
Peter Crosthwaitea5f54292014-05-19 23:30:58 -0700311 } else {
312 qemu_irq_intercept_in(ngl->in, qtest_irq_handler,
313 ngl->num_in);
314 }
Paolo Bonzini20288342012-03-28 15:42:03 +0200315 }
316 irq_intercept_dev = dev;
317 qtest_send_prefix(chr);
318 qtest_send(chr, "OK\n");
319
320 } else if (strcmp(words[0], "outb") == 0 ||
321 strcmp(words[0], "outw") == 0 ||
322 strcmp(words[0], "outl") == 0) {
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200323 uint16_t addr;
324 uint32_t value;
325
326 g_assert(words[1] && words[2]);
Peter Maydell56863d42013-04-21 14:30:03 +0100327 addr = strtoul(words[1], NULL, 0);
328 value = strtoul(words[2], NULL, 0);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200329
330 if (words[0][3] == 'b') {
331 cpu_outb(addr, value);
332 } else if (words[0][3] == 'w') {
333 cpu_outw(addr, value);
334 } else if (words[0][3] == 'l') {
335 cpu_outl(addr, value);
336 }
337 qtest_send_prefix(chr);
338 qtest_send(chr, "OK\n");
339 } else if (strcmp(words[0], "inb") == 0 ||
340 strcmp(words[0], "inw") == 0 ||
341 strcmp(words[0], "inl") == 0) {
342 uint16_t addr;
343 uint32_t value = -1U;
344
345 g_assert(words[1]);
Peter Maydell56863d42013-04-21 14:30:03 +0100346 addr = strtoul(words[1], NULL, 0);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200347
348 if (words[0][2] == 'b') {
349 value = cpu_inb(addr);
350 } else if (words[0][2] == 'w') {
351 value = cpu_inw(addr);
352 } else if (words[0][2] == 'l') {
353 value = cpu_inl(addr);
354 }
355 qtest_send_prefix(chr);
John Snow332cc7e2015-05-22 14:13:43 -0400356 qtest_sendf(chr, "OK 0x%04x\n", value);
Andreas Färber872536b2013-02-16 22:44:03 +0100357 } else if (strcmp(words[0], "writeb") == 0 ||
358 strcmp(words[0], "writew") == 0 ||
359 strcmp(words[0], "writel") == 0 ||
360 strcmp(words[0], "writeq") == 0) {
361 uint64_t addr;
362 uint64_t value;
363
364 g_assert(words[1] && words[2]);
365 addr = strtoull(words[1], NULL, 0);
366 value = strtoull(words[2], NULL, 0);
367
368 if (words[0][5] == 'b') {
369 uint8_t data = value;
370 cpu_physical_memory_write(addr, &data, 1);
371 } else if (words[0][5] == 'w') {
372 uint16_t data = value;
373 tswap16s(&data);
374 cpu_physical_memory_write(addr, &data, 2);
375 } else if (words[0][5] == 'l') {
376 uint32_t data = value;
377 tswap32s(&data);
378 cpu_physical_memory_write(addr, &data, 4);
379 } else if (words[0][5] == 'q') {
380 uint64_t data = value;
381 tswap64s(&data);
382 cpu_physical_memory_write(addr, &data, 8);
383 }
384 qtest_send_prefix(chr);
385 qtest_send(chr, "OK\n");
386 } else if (strcmp(words[0], "readb") == 0 ||
387 strcmp(words[0], "readw") == 0 ||
388 strcmp(words[0], "readl") == 0 ||
389 strcmp(words[0], "readq") == 0) {
390 uint64_t addr;
391 uint64_t value = UINT64_C(-1);
392
393 g_assert(words[1]);
394 addr = strtoull(words[1], NULL, 0);
395
396 if (words[0][4] == 'b') {
397 uint8_t data;
398 cpu_physical_memory_read(addr, &data, 1);
399 value = data;
400 } else if (words[0][4] == 'w') {
401 uint16_t data;
402 cpu_physical_memory_read(addr, &data, 2);
403 value = tswap16(data);
404 } else if (words[0][4] == 'l') {
405 uint32_t data;
406 cpu_physical_memory_read(addr, &data, 4);
407 value = tswap32(data);
408 } else if (words[0][4] == 'q') {
409 cpu_physical_memory_read(addr, &value, 8);
410 tswap64s(&value);
411 }
412 qtest_send_prefix(chr);
John Snow332cc7e2015-05-22 14:13:43 -0400413 qtest_sendf(chr, "OK 0x%016" PRIx64 "\n", value);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200414 } else if (strcmp(words[0], "read") == 0) {
415 uint64_t addr, len, i;
416 uint8_t *data;
John Snow5560b852015-05-22 14:13:44 -0400417 char *enc;
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200418
419 g_assert(words[1] && words[2]);
Andreas Färber5dd6be02013-02-11 17:41:53 +0100420 addr = strtoull(words[1], NULL, 0);
421 len = strtoull(words[2], NULL, 0);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200422
423 data = g_malloc(len);
424 cpu_physical_memory_read(addr, data, len);
425
John Snow5560b852015-05-22 14:13:44 -0400426 enc = g_malloc(2 * len + 1);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200427 for (i = 0; i < len; i++) {
John Snow5560b852015-05-22 14:13:44 -0400428 sprintf(&enc[i * 2], "%02x", data[i]);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200429 }
John Snow5560b852015-05-22 14:13:44 -0400430
431 qtest_send_prefix(chr);
432 qtest_sendf(chr, "OK 0x%s\n", enc);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200433
434 g_free(data);
John Snow5560b852015-05-22 14:13:44 -0400435 g_free(enc);
John Snow7a6a7402015-05-22 14:13:44 -0400436 } else if (strcmp(words[0], "b64read") == 0) {
437 uint64_t addr, len;
438 uint8_t *data;
439 gchar *b64_data;
440
441 g_assert(words[1] && words[2]);
442 addr = strtoull(words[1], NULL, 0);
443 len = strtoull(words[2], NULL, 0);
444
445 data = g_malloc(len);
446 cpu_physical_memory_read(addr, data, len);
447 b64_data = g_base64_encode(data, len);
448 qtest_send_prefix(chr);
449 qtest_sendf(chr, "OK %s\n", b64_data);
450
451 g_free(data);
452 g_free(b64_data);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200453 } else if (strcmp(words[0], "write") == 0) {
454 uint64_t addr, len, i;
455 uint8_t *data;
456 size_t data_len;
457
458 g_assert(words[1] && words[2] && words[3]);
Andreas Färber5dd6be02013-02-11 17:41:53 +0100459 addr = strtoull(words[1], NULL, 0);
460 len = strtoull(words[2], NULL, 0);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200461
462 data_len = strlen(words[3]);
463 if (data_len < 3) {
464 qtest_send(chr, "ERR invalid argument size\n");
465 return;
466 }
467
468 data = g_malloc(len);
469 for (i = 0; i < len; i++) {
470 if ((i * 2 + 4) <= data_len) {
471 data[i] = hex2nib(words[3][i * 2 + 2]) << 4;
472 data[i] |= hex2nib(words[3][i * 2 + 3]);
473 } else {
474 data[i] = 0;
475 }
476 }
477 cpu_physical_memory_write(addr, data, len);
478 g_free(data);
479
480 qtest_send_prefix(chr);
481 qtest_send(chr, "OK\n");
John Snow4d007962015-05-22 14:13:44 -0400482 } else if (strcmp(words[0], "memset") == 0) {
483 uint64_t addr, len;
484 uint8_t *data;
485 uint8_t pattern;
486
487 g_assert(words[1] && words[2] && words[3]);
488 addr = strtoull(words[1], NULL, 0);
489 len = strtoull(words[2], NULL, 0);
490 pattern = strtoull(words[3], NULL, 0);
491
492 data = g_malloc(len);
493 memset(data, pattern, len);
494 cpu_physical_memory_write(addr, data, len);
495 g_free(data);
496
497 qtest_send_prefix(chr);
498 qtest_send(chr, "OK\n");
John Snow7a6a7402015-05-22 14:13:44 -0400499 } else if (strcmp(words[0], "b64write") == 0) {
500 uint64_t addr, len;
501 uint8_t *data;
502 size_t data_len;
503 gsize out_len;
504
505 g_assert(words[1] && words[2] && words[3]);
506 addr = strtoull(words[1], NULL, 0);
507 len = strtoull(words[2], NULL, 0);
508
509 data_len = strlen(words[3]);
510 if (data_len < 3) {
511 qtest_send(chr, "ERR invalid argument size\n");
512 return;
513 }
514
515 data = g_base64_decode_inplace(words[3], &out_len);
516 if (out_len != len) {
517 qtest_log_send("b64write: data length mismatch (told %"PRIu64", "
518 "found %zu)\n",
519 len, out_len);
520 out_len = MIN(out_len, len);
521 }
522
523 cpu_physical_memory_write(addr, data, out_len);
524
525 qtest_send_prefix(chr);
526 qtest_send(chr, "OK\n");
Paolo Bonzinid4fce242013-10-18 13:51:11 +0200527 } else if (qtest_enabled() && strcmp(words[0], "clock_step") == 0) {
Paolo Bonzini8156be52012-03-28 15:42:04 +0200528 int64_t ns;
529
530 if (words[1]) {
531 ns = strtoll(words[1], NULL, 0);
532 } else {
Alex Bligh40daca52013-08-21 16:03:02 +0100533 ns = qemu_clock_deadline_ns_all(QEMU_CLOCK_VIRTUAL);
Paolo Bonzini8156be52012-03-28 15:42:04 +0200534 }
Alex Blighbc72ad62013-08-21 16:03:08 +0100535 qtest_clock_warp(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + ns);
Paolo Bonzini8156be52012-03-28 15:42:04 +0200536 qtest_send_prefix(chr);
John Snow332cc7e2015-05-22 14:13:43 -0400537 qtest_sendf(chr, "OK %"PRIi64"\n",
538 (int64_t)qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL));
Paolo Bonzinid4fce242013-10-18 13:51:11 +0200539 } else if (qtest_enabled() && strcmp(words[0], "clock_set") == 0) {
Paolo Bonzini8156be52012-03-28 15:42:04 +0200540 int64_t ns;
541
542 g_assert(words[1]);
543 ns = strtoll(words[1], NULL, 0);
544 qtest_clock_warp(ns);
545 qtest_send_prefix(chr);
John Snow332cc7e2015-05-22 14:13:43 -0400546 qtest_sendf(chr, "OK %"PRIi64"\n",
547 (int64_t)qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL));
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200548 } else {
549 qtest_send_prefix(chr);
John Snow332cc7e2015-05-22 14:13:43 -0400550 qtest_sendf(chr, "FAIL Unknown command '%s'\n", words[0]);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200551 }
552}
553
554static void qtest_process_inbuf(CharDriverState *chr, GString *inbuf)
555{
556 char *end;
557
558 while ((end = strchr(inbuf->str, '\n')) != NULL) {
559 size_t offset;
560 GString *cmd;
561 gchar **words;
562
563 offset = end - inbuf->str;
564
565 cmd = g_string_new_len(inbuf->str, offset);
566 g_string_erase(inbuf, 0, offset + 1);
567
568 words = g_strsplit(cmd->str, " ", 0);
569 qtest_process_command(chr, words);
570 g_strfreev(words);
571
572 g_string_free(cmd, TRUE);
573 }
574}
575
576static void qtest_read(void *opaque, const uint8_t *buf, int size)
577{
578 CharDriverState *chr = opaque;
579
580 g_string_append_len(inbuf, (const gchar *)buf, size);
581 qtest_process_inbuf(chr, inbuf);
582}
583
584static int qtest_can_read(void *opaque)
585{
586 return 1024;
587}
588
589static void qtest_event(void *opaque, int event)
590{
591 int i;
592
593 switch (event) {
594 case CHR_EVENT_OPENED:
Markus Armbrusterba646ff2013-06-26 15:52:12 +0200595 /*
596 * We used to call qemu_system_reset() here, hoping we could
597 * use the same process for multiple tests that way. Never
598 * used. Injects an extra reset even when it's not used, and
599 * that can mess up tests, e.g. -boot once.
600 */
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200601 for (i = 0; i < ARRAY_SIZE(irq_levels); i++) {
602 irq_levels[i] = 0;
603 }
Anthony Liguori6e924662012-03-30 14:04:04 -0500604 qemu_gettimeofday(&start_time);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200605 qtest_opened = true;
606 if (qtest_log_fp) {
607 fprintf(qtest_log_fp, "[I " FMT_timeval "] OPENED\n",
Richard Henderson35aa3fb2013-08-20 13:53:25 -0700608 (long) start_time.tv_sec, (long) start_time.tv_usec);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200609 }
610 break;
611 case CHR_EVENT_CLOSED:
612 qtest_opened = false;
613 if (qtest_log_fp) {
Anthony Liguori6e924662012-03-30 14:04:04 -0500614 qemu_timeval tv;
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200615 qtest_get_time(&tv);
616 fprintf(qtest_log_fp, "[I +" FMT_timeval "] CLOSED\n",
Richard Henderson35aa3fb2013-08-20 13:53:25 -0700617 (long) tv.tv_sec, (long) tv.tv_usec);
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200618 }
619 break;
620 default:
621 break;
622 }
623}
624
Eduardo Habkostf6a1ef62014-09-26 17:45:30 -0300625static int qtest_init_accel(MachineState *ms)
Paolo Bonzinid4fce242013-10-18 13:51:11 +0200626{
Markus Armbrusterb3adf5a2015-02-13 15:48:19 +0100627 QemuOpts *opts = qemu_opts_create(qemu_find_opts("icount"), NULL, 0,
628 &error_abort);
629 qemu_opt_set(opts, "shift", "0", &error_abort);
630 configure_icount(opts, &error_abort);
631 qemu_opts_del(opts);
Paolo Bonzinid4fce242013-10-18 13:51:11 +0200632 return 0;
633}
634
Fam Zheng23802b42014-02-10 09:28:02 +0800635void qtest_init(const char *qtest_chrdev, const char *qtest_log, Error **errp)
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200636{
637 CharDriverState *chr;
638
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200639 chr = qemu_chr_new("qtest", qtest_chrdev, NULL);
640
Fam Zheng23802b42014-02-10 09:28:02 +0800641 if (chr == NULL) {
642 error_setg(errp, "Failed to initialize device for qtest: \"%s\"",
643 qtest_chrdev);
644 return;
645 }
646
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200647 if (qtest_log) {
648 if (strcmp(qtest_log, "none") != 0) {
649 qtest_log_fp = fopen(qtest_log, "w+");
650 }
651 } else {
652 qtest_log_fp = stderr;
653 }
654
Li Liu107684c2014-10-22 10:26:47 +0800655 qemu_chr_add_handlers(chr, qtest_can_read, qtest_read, qtest_event, chr);
656 qemu_chr_fe_set_echo(chr, true);
657
658 inbuf = g_string_new("");
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200659 qtest_chr = chr;
Anthony Liguoric7f0f3b2012-03-28 15:42:02 +0200660}
Michael S. Tsirkinb3be57c2014-02-04 20:06:47 +0200661
662bool qtest_driver(void)
663{
664 return qtest_chr;
665}
Eduardo Habkost3a6ce512014-09-26 17:45:26 -0300666
667static void qtest_accel_class_init(ObjectClass *oc, void *data)
668{
669 AccelClass *ac = ACCEL_CLASS(oc);
670 ac->name = "QTest";
671 ac->available = qtest_available;
Eduardo Habkost0d15da82014-09-26 17:45:29 -0300672 ac->init_machine = qtest_init_accel;
Eduardo Habkost3a6ce512014-09-26 17:45:26 -0300673 ac->allowed = &qtest_allowed;
674}
675
676#define TYPE_QTEST_ACCEL ACCEL_CLASS_NAME("qtest")
677
678static const TypeInfo qtest_accel_type = {
679 .name = TYPE_QTEST_ACCEL,
680 .parent = TYPE_ACCEL,
681 .class_init = qtest_accel_class_init,
682};
683
684static void qtest_type_init(void)
685{
686 type_register_static(&qtest_accel_type);
687}
688
689type_init(qtest_type_init);