tests/libqtest.h

   1 /*
   2  * QTest
   3  *
   4  * Copyright IBM, Corp. 2012
   5  * Copyright Red Hat, Inc. 2012
   6  * Copyright SUSE LINUX Products GmbH 2013
   7  *
   8  * Authors:
   9  *  Anthony Liguori   <aliguori@us.ibm.com>
  10  *  Paolo Bonzini     <pbonzini@redhat.com>
  11  *  Andreas Färber    <afaerber@suse.de>
  12  *
  13  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  14  * See the COPYING file in the top-level directory.
  15  *
  16  */
  17 #ifndef LIBQTEST_H
  18 #define LIBQTEST_H
  19
  20 #include <stddef.h>
  21 #include <stdint.h>
  22 #include <stdbool.h>
  23 #include <stdarg.h>
  24 #include <sys/types.h>
  25 #include "qapi/qmp/qdict.h"
  26
  27 typedef struct QTestState QTestState;
  28
  29 extern QTestState *global_qtest;
  30
  31 /**
  32  * qtest_init:
  33  * @extra_args: other arguments to pass to QEMU.
  34  *
  35  * Returns: #QTestState instance.
  36  */
  37 QTestState *qtest_init(const char *extra_args);
  38
  39 /**
  40  * qtest_quit:
  41  * @s: #QTestState instance to operate on.
  42  *
  43  * Shut down the QEMU process associated to @s.
  44  */
  45 void qtest_quit(QTestState *s);
  46
  47 /**
  48  * qtest_qmp_discard_response:
  49  * @s: #QTestState instance to operate on.
  50  * @fmt...: QMP message to send to qemu
  51  *
  52  * Sends a QMP message to QEMU and consumes the response.
  53  */
  54 void qtest_qmp_discard_response(QTestState *s, const char *fmt, ...);
  55
  56 /**
  57  * qtest_qmp:
  58  * @s: #QTestState instance to operate on.
  59  * @fmt...: QMP message to send to qemu
  60  *
  61  * Sends a QMP message to QEMU and returns the response.
  62  */
  63 QDict *qtest_qmp(QTestState *s, const char *fmt, ...);
  64
  65 /**
  66  * qtest_qmpv_discard_response:
  67  * @s: #QTestState instance to operate on.
  68  * @fmt: QMP message to send to QEMU
  69  * @ap: QMP message arguments
  70  *
  71  * Sends a QMP message to QEMU and consumes the response.
  72  */
  73 void qtest_qmpv_discard_response(QTestState *s, const char *fmt, va_list ap);
  74
  75 /**
  76  * qtest_qmpv:
  77  * @s: #QTestState instance to operate on.
  78  * @fmt: QMP message to send to QEMU
  79  * @ap: QMP message arguments
  80  *
  81  * Sends a QMP message to QEMU and returns the response.
  82  */
  83 QDict *qtest_qmpv(QTestState *s, const char *fmt, va_list ap);
  84
  85 /**
  86  * qtest_receive:
  87  * @s: #QTestState instance to operate on.
  88  *
  89  * Reads a QMP message from QEMU and returns the response.
  90  */
  91 QDict *qtest_qmp_receive(QTestState *s);
  92
  93 /**
  94  * qtest_get_irq:
  95  * @s: #QTestState instance to operate on.
  96  * @num: Interrupt to observe.
  97  *
  98  * Returns: The level of the @num interrupt.
  99  */
 100 bool qtest_get_irq(QTestState *s, int num);
 101
 102 /**
 103  * qtest_irq_intercept_in:
 104  * @s: #QTestState instance to operate on.
 105  * @string: QOM path of a device.
 106  *
 107  * Associate qtest irqs with the GPIO-in pins of the device
 108  * whose path is specified by @string.
 109  */
 110 void qtest_irq_intercept_in(QTestState *s, const char *string);
 111
 112 /**
 113  * qtest_irq_intercept_out:
 114  * @s: #QTestState instance to operate on.
 115  * @string: QOM path of a device.
 116  *
 117  * Associate qtest irqs with the GPIO-out pins of the device
 118  * whose path is specified by @string.
 119  */
 120 void qtest_irq_intercept_out(QTestState *s, const char *string);
 121
 122 /**
 123  * qtest_outb:
 124  * @s: #QTestState instance to operate on.
 125  * @addr: I/O port to write to.
 126  * @value: Value being written.
 127  *
 128  * Write an 8-bit value to an I/O port.
 129  */
 130 void qtest_outb(QTestState *s, uint16_t addr, uint8_t value);
 131
 132 /**
 133  * qtest_outw:
 134  * @s: #QTestState instance to operate on.
 135  * @addr: I/O port to write to.
 136  * @value: Value being written.
 137  *
 138  * Write a 16-bit value to an I/O port.
 139  */
 140 void qtest_outw(QTestState *s, uint16_t addr, uint16_t value);
 141
 142 /**
 143  * qtest_outl:
 144  * @s: #QTestState instance to operate on.
 145  * @addr: I/O port to write to.
 146  * @value: Value being written.
 147  *
 148  * Write a 32-bit value to an I/O port.
 149  */
 150 void qtest_outl(QTestState *s, uint16_t addr, uint32_t value);
 151
 152 /**
 153  * qtest_inb:
 154  * @s: #QTestState instance to operate on.
 155  * @addr: I/O port to read from.
 156  *
 157  * Returns an 8-bit value from an I/O port.
 158  */
 159 uint8_t qtest_inb(QTestState *s, uint16_t addr);
 160
 161 /**
 162  * qtest_inw:
 163  * @s: #QTestState instance to operate on.
 164  * @addr: I/O port to read from.
 165  *
 166  * Returns a 16-bit value from an I/O port.
 167  */
 168 uint16_t qtest_inw(QTestState *s, uint16_t addr);
 169
 170 /**
 171  * qtest_inl:
 172  * @s: #QTestState instance to operate on.
 173  * @addr: I/O port to read from.
 174  *
 175  * Returns a 32-bit value from an I/O port.
 176  */
 177 uint32_t qtest_inl(QTestState *s, uint16_t addr);
 178
 179 /**
 180  * qtest_writeb:
 181  * @s: #QTestState instance to operate on.
 182  * @addr: Guest address to write to.
 183  * @value: Value being written.
 184  *
 185  * Writes an 8-bit value to memory.
 186  */
 187 void qtest_writeb(QTestState *s, uint64_t addr, uint8_t value);
 188
 189 /**
 190  * qtest_writew:
 191  * @s: #QTestState instance to operate on.
 192  * @addr: Guest address to write to.
 193  * @value: Value being written.
 194  *
 195  * Writes a 16-bit value to memory.
 196  */
 197 void qtest_writew(QTestState *s, uint64_t addr, uint16_t value);
 198
 199 /**
 200  * qtest_writel:
 201  * @s: #QTestState instance to operate on.
 202  * @addr: Guest address to write to.
 203  * @value: Value being written.
 204  *
 205  * Writes a 32-bit value to memory.
 206  */
 207 void qtest_writel(QTestState *s, uint64_t addr, uint32_t value);
 208
 209 /**
 210  * qtest_writeq:
 211  * @s: #QTestState instance to operate on.
 212  * @addr: Guest address to write to.
 213  * @value: Value being written.
 214  *
 215  * Writes a 64-bit value to memory.
 216  */
 217 void qtest_writeq(QTestState *s, uint64_t addr, uint64_t value);
 218
 219 /**
 220  * qtest_readb:
 221  * @s: #QTestState instance to operate on.
 222  * @addr: Guest address to read from.
 223  *
 224  * Reads an 8-bit value from memory.
 225  *
 226  * Returns: Value read.
 227  */
 228 uint8_t qtest_readb(QTestState *s, uint64_t addr);
 229
 230 /**
 231  * qtest_readw:
 232  * @s: #QTestState instance to operate on.
 233  * @addr: Guest address to read from.
 234  *
 235  * Reads a 16-bit value from memory.
 236  *
 237  * Returns: Value read.
 238  */
 239 uint16_t qtest_readw(QTestState *s, uint64_t addr);
 240
 241 /**
 242  * qtest_readl:
 243  * @s: #QTestState instance to operate on.
 244  * @addr: Guest address to read from.
 245  *
 246  * Reads a 32-bit value from memory.
 247  *
 248  * Returns: Value read.
 249  */
 250 uint32_t qtest_readl(QTestState *s, uint64_t addr);
 251
 252 /**
 253  * qtest_readq:
 254  * @s: #QTestState instance to operate on.
 255  * @addr: Guest address to read from.
 256  *
 257  * Reads a 64-bit value from memory.
 258  *
 259  * Returns: Value read.
 260  */
 261 uint64_t qtest_readq(QTestState *s, uint64_t addr);
 262
 263 /**
 264  * qtest_memread:
 265  * @s: #QTestState instance to operate on.
 266  * @addr: Guest address to read from.
 267  * @data: Pointer to where memory contents will be stored.
 268  * @size: Number of bytes to read.
 269  *
 270  * Read guest memory into a buffer.
 271  */
 272 void qtest_memread(QTestState *s, uint64_t addr, void *data, size_t size);
 273
 274 /**
 275  * qtest_memwrite:
 276  * @s: #QTestState instance to operate on.
 277  * @addr: Guest address to write to.
 278  * @data: Pointer to the bytes that will be written to guest memory.
 279  * @size: Number of bytes to write.
 280  *
 281  * Write a buffer to guest memory.
 282  */
 283 void qtest_memwrite(QTestState *s, uint64_t addr, const void *data, size_t size);
 284
 285 /**
 286  * qtest_memset:
 287  * @s: #QTestState instance to operate on.
 288  * @addr: Guest address to write to.
 289  * @patt: Byte pattern to fill the guest memory region with.
 290  * @size: Number of bytes to write.
 291  *
 292  * Write a pattern to guest memory.
 293  */
 294 void qtest_memset(QTestState *s, uint64_t addr, uint8_t patt, size_t size);
 295
 296 /**
 297  * qtest_clock_step_next:
 298  * @s: #QTestState instance to operate on.
 299  *
 300  * Advance the QEMU_CLOCK_VIRTUAL to the next deadline.
 301  *
 302  * Returns: The current value of the QEMU_CLOCK_VIRTUAL in nanoseconds.
 303  */
 304 int64_t qtest_clock_step_next(QTestState *s);
 305
 306 /**
 307  * qtest_clock_step:
 308  * @s: QTestState instance to operate on.
 309  * @step: Number of nanoseconds to advance the clock by.
 310  *
 311  * Advance the QEMU_CLOCK_VIRTUAL by @step nanoseconds.
 312  *
 313  * Returns: The current value of the QEMU_CLOCK_VIRTUAL in nanoseconds.
 314  */
 315 int64_t qtest_clock_step(QTestState *s, int64_t step);
 316
 317 /**
 318  * qtest_clock_set:
 319  * @s: QTestState instance to operate on.
 320  * @val: Nanoseconds value to advance the clock to.
 321  *
 322  * Advance the QEMU_CLOCK_VIRTUAL to @val nanoseconds since the VM was launched.
 323  *
 324  * Returns: The current value of the QEMU_CLOCK_VIRTUAL in nanoseconds.
 325  */
 326 int64_t qtest_clock_set(QTestState *s, int64_t val);
 327
 328 /**
 329  * qtest_get_arch:
 330  *
 331  * Returns: The architecture for the QEMU executable under test.
 332  */
 333 const char *qtest_get_arch(void);
 334
 335 /**
 336  * qtest_add_func:
 337  * @str: Test case path.
 338  * @fn: Test case function
 339  *
 340  * Add a GTester testcase with the given name and function.
 341  * The path is prefixed with the architecture under test, as
 342  * returned by qtest_get_arch().
 343  */
 344 void qtest_add_func(const char *str, void (*fn));
 345
 346 /**
 347  * qtest_start:
 348  * @args: other arguments to pass to QEMU
 349  *
 350  * Start QEMU and assign the resulting #QTestState to a global variable.
 351  * The global variable is used by "shortcut" functions documented below.
 352  *
 353  * Returns: #QTestState instance.
 354  */
 355 static inline QTestState *qtest_start(const char *args)
 356 {
 357     global_qtest = qtest_init(args);
 358     return global_qtest;
 359 }
 360
 361 /**
 362  * qtest_end:
 363  *
 364  * Shut down the QEMU process started by qtest_start().
 365  */
 366 static inline void qtest_end(void)
 367 {
 368     qtest_quit(global_qtest);
 369     global_qtest = NULL;
 370 }
 371
 372 /**
 373  * qmp:
 374  * @fmt...: QMP message to send to qemu
 375  *
 376  * Sends a QMP message to QEMU and returns the response.
 377  */
 378 QDict *qmp(const char *fmt, ...);
 379
 380 /**
 381  * qmp_discard_response:
 382  * @fmt...: QMP message to send to qemu
 383  *
 384  * Sends a QMP message to QEMU and consumes the response.
 385  */
 386 void qmp_discard_response(const char *fmt, ...);
 387
 388 /**
 389  * qmp_receive:
 390  *
 391  * Reads a QMP message from QEMU and returns the response.
 392  */
 393 static inline QDict *qmp_receive(void)
 394 {
 395     return qtest_qmp_receive(global_qtest);
 396 }
 397
 398 /**
 399  * get_irq:
 400  * @num: Interrupt to observe.
 401  *
 402  * Returns: The level of the @num interrupt.
 403  */
 404 static inline bool get_irq(int num)
 405 {
 406     return qtest_get_irq(global_qtest, num);
 407 }
 408
 409 /**
 410  * irq_intercept_in:
 411  * @string: QOM path of a device.
 412  *
 413  * Associate qtest irqs with the GPIO-in pins of the device
 414  * whose path is specified by @string.
 415  */
 416 static inline void irq_intercept_in(const char *string)
 417 {
 418     qtest_irq_intercept_in(global_qtest, string);
 419 }
 420
 421 /**
 422  * qtest_irq_intercept_out:
 423  * @string: QOM path of a device.
 424  *
 425  * Associate qtest irqs with the GPIO-out pins of the device
 426  * whose path is specified by @string.
 427  */
 428 static inline void irq_intercept_out(const char *string)
 429 {
 430     qtest_irq_intercept_out(global_qtest, string);
 431 }
 432
 433 /**
 434  * outb:
 435  * @addr: I/O port to write to.
 436  * @value: Value being written.
 437  *
 438  * Write an 8-bit value to an I/O port.
 439  */
 440 static inline void outb(uint16_t addr, uint8_t value)
 441 {
 442     qtest_outb(global_qtest, addr, value);
 443 }
 444
 445 /**
 446  * outw:
 447  * @addr: I/O port to write to.
 448  * @value: Value being written.
 449  *
 450  * Write a 16-bit value to an I/O port.
 451  */
 452 static inline void outw(uint16_t addr, uint16_t value)
 453 {
 454     qtest_outw(global_qtest, addr, value);
 455 }
 456
 457 /**
 458  * outl:
 459  * @addr: I/O port to write to.
 460  * @value: Value being written.
 461  *
 462  * Write a 32-bit value to an I/O port.
 463  */
 464 static inline void outl(uint16_t addr, uint32_t value)
 465 {
 466     qtest_outl(global_qtest, addr, value);
 467 }
 468
 469 /**
 470  * inb:
 471  * @addr: I/O port to read from.
 472  *
 473  * Reads an 8-bit value from an I/O port.
 474  *
 475  * Returns: Value read.
 476  */
 477 static inline uint8_t inb(uint16_t addr)
 478 {
 479     return qtest_inb(global_qtest, addr);
 480 }
 481
 482 /**
 483  * inw:
 484  * @addr: I/O port to read from.
 485  *
 486  * Reads a 16-bit value from an I/O port.
 487  *
 488  * Returns: Value read.
 489  */
 490 static inline uint16_t inw(uint16_t addr)
 491 {
 492     return qtest_inw(global_qtest, addr);
 493 }
 494
 495 /**
 496  * inl:
 497  * @addr: I/O port to read from.
 498  *
 499  * Reads a 32-bit value from an I/O port.
 500  *
 501  * Returns: Value read.
 502  */
 503 static inline uint32_t inl(uint16_t addr)
 504 {
 505     return qtest_inl(global_qtest, addr);
 506 }
 507
 508 /**
 509  * writeb:
 510  * @addr: Guest address to write to.
 511  * @value: Value being written.
 512  *
 513  * Writes an 8-bit value to guest memory.
 514  */
 515 static inline void writeb(uint64_t addr, uint8_t value)
 516 {
 517     qtest_writeb(global_qtest, addr, value);
 518 }
 519
 520 /**
 521  * writew:
 522  * @addr: Guest address to write to.
 523  * @value: Value being written.
 524  *
 525  * Writes a 16-bit value to guest memory.
 526  */
 527 static inline void writew(uint64_t addr, uint16_t value)
 528 {
 529     qtest_writew(global_qtest, addr, value);
 530 }
 531
 532 /**
 533  * writel:
 534  * @addr: Guest address to write to.
 535  * @value: Value being written.
 536  *
 537  * Writes a 32-bit value to guest memory.
 538  */
 539 static inline void writel(uint64_t addr, uint32_t value)
 540 {
 541     qtest_writel(global_qtest, addr, value);
 542 }
 543
 544 /**
 545  * writeq:
 546  * @addr: Guest address to write to.
 547  * @value: Value being written.
 548  *
 549  * Writes a 64-bit value to guest memory.
 550  */
 551 static inline void writeq(uint64_t addr, uint64_t value)
 552 {
 553     qtest_writeq(global_qtest, addr, value);
 554 }
 555
 556 /**
 557  * readb:
 558  * @addr: Guest address to read from.
 559  *
 560  * Reads an 8-bit value from guest memory.
 561  *
 562  * Returns: Value read.
 563  */
 564 static inline uint8_t readb(uint64_t addr)
 565 {
 566     return qtest_readb(global_qtest, addr);
 567 }
 568
 569 /**
 570  * readw:
 571  * @addr: Guest address to read from.
 572  *
 573  * Reads a 16-bit value from guest memory.
 574  *
 575  * Returns: Value read.
 576  */
 577 static inline uint16_t readw(uint64_t addr)
 578 {
 579     return qtest_readw(global_qtest, addr);
 580 }
 581
 582 /**
 583  * readl:
 584  * @addr: Guest address to read from.
 585  *
 586  * Reads a 32-bit value from guest memory.
 587  *
 588  * Returns: Value read.
 589  */
 590 static inline uint32_t readl(uint64_t addr)
 591 {
 592     return qtest_readl(global_qtest, addr);
 593 }
 594
 595 /**
 596  * readq:
 597  * @addr: Guest address to read from.
 598  *
 599  * Reads a 64-bit value from guest memory.
 600  *
 601  * Returns: Value read.
 602  */
 603 static inline uint64_t readq(uint64_t addr)
 604 {
 605     return qtest_readq(global_qtest, addr);
 606 }
 607
 608 /**
 609  * memread:
 610  * @addr: Guest address to read from.
 611  * @data: Pointer to where memory contents will be stored.
 612  * @size: Number of bytes to read.
 613  *
 614  * Read guest memory into a buffer.
 615  */
 616 static inline void memread(uint64_t addr, void *data, size_t size)
 617 {
 618     qtest_memread(global_qtest, addr, data, size);
 619 }
 620
 621 /**
 622  * memwrite:
 623  * @addr: Guest address to write to.
 624  * @data: Pointer to the bytes that will be written to guest memory.
 625  * @size: Number of bytes to write.
 626  *
 627  * Write a buffer to guest memory.
 628  */
 629 static inline void memwrite(uint64_t addr, const void *data, size_t size)
 630 {
 631     qtest_memwrite(global_qtest, addr, data, size);
 632 }
 633
 634 /**
 635  * qmemset:
 636  * @addr: Guest address to write to.
 637  * @patt: Byte pattern to fill the guest memory region with.
 638  * @size: Number of bytes to write.
 639  *
 640  * Write a pattern to guest memory.
 641  */
 642 static inline void qmemset(uint64_t addr, uint8_t patt, size_t size)
 643 {
 644     qtest_memset(global_qtest, addr, patt, size);
 645 }
 646
 647 /**
 648  * clock_step_next:
 649  *
 650  * Advance the QEMU_CLOCK_VIRTUAL to the next deadline.
 651  *
 652  * Returns: The current value of the QEMU_CLOCK_VIRTUAL in nanoseconds.
 653  */
 654 static inline int64_t clock_step_next(void)
 655 {
 656     return qtest_clock_step_next(global_qtest);
 657 }
 658
 659 /**
 660  * clock_step:
 661  * @step: Number of nanoseconds to advance the clock by.
 662  *
 663  * Advance the QEMU_CLOCK_VIRTUAL by @step nanoseconds.
 664  *
 665  * Returns: The current value of the QEMU_CLOCK_VIRTUAL in nanoseconds.
 666  */
 667 static inline int64_t clock_step(int64_t step)
 668 {
 669     return qtest_clock_step(global_qtest, step);
 670 }
 671
 672 /**
 673  * clock_set:
 674  * @val: Nanoseconds value to advance the clock to.
 675  *
 676  * Advance the QEMU_CLOCK_VIRTUAL to @val nanoseconds since the VM was launched.
 677  *
 678  * Returns: The current value of the QEMU_CLOCK_VIRTUAL in nanoseconds.
 679  */
 680 static inline int64_t clock_set(int64_t val)
 681 {
 682     return qtest_clock_set(global_qtest, val);
 683 }
 684
 685 #endif