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32 #include "libqos/libqos-pc.h"
33 #include "libqos/ahci.h"
34 #include "libqos/pci-pc.h"
36 #include "qemu-common.h"
37 #include "qemu/host-utils.h"
39 #include "hw/pci/pci_ids.h"
40 #include "hw/pci/pci_regs.h"
42 /* Test-specific defines -- in MiB */
43 #define TEST_IMAGE_SIZE_MB (200 * 1024)
44 #define TEST_IMAGE_SECTORS ((TEST_IMAGE_SIZE_MB / AHCI_SECTOR_SIZE) \
48 static char tmp_path[] = "/tmp/qtest.XXXXXX";
49 static bool ahci_pedantic;
51 /*** Function Declarations ***/
52 static void ahci_test_port_spec(AHCIQState *ahci, uint8_t port);
53 static void ahci_test_pci_spec(AHCIQState *ahci);
54 static void ahci_test_pci_caps(AHCIQState *ahci, uint16_t header,
56 static void ahci_test_satacap(AHCIQState *ahci, uint8_t offset);
57 static void ahci_test_msicap(AHCIQState *ahci, uint8_t offset);
58 static void ahci_test_pmcap(AHCIQState *ahci, uint8_t offset);
62 static void string_bswap16(uint16_t *s, size_t bytes)
64 g_assert_cmphex((bytes & 1), ==, 0);
73 static void generate_pattern(void *buffer, size_t len, size_t cycle_len)
76 unsigned char *tx = (unsigned char *)buffer;
80 /* Write an indicative pattern that varies and is unique per-cycle */
82 for (i = j = 0; i < len; i++, j++) {
84 if (j % cycle_len == 0) {
89 /* force uniqueness by writing an id per-cycle */
90 for (i = 0; i < len / cycle_len; i++) {
92 if (j + sizeof(*sx) <= len) {
93 sx = (size_t *)&tx[j];
99 /*** Test Setup & Teardown ***/
102 * Start a Q35 machine and bookmark a handle to the AHCI device.
104 static AHCIQState *ahci_boot(void)
109 s = g_malloc0(sizeof(AHCIQState));
111 cli = "-drive if=none,id=drive0,file=%s,cache=writeback,serial=%s"
114 "-device ide-hd,drive=drive0 "
115 "-global ide-hd.ver=%s";
116 s->parent = qtest_pc_boot(cli, tmp_path, "testdisk", "version");
117 alloc_set_flags(s->parent->alloc, ALLOC_LEAK_ASSERT);
119 /* Verify that we have an AHCI device present. */
120 s->dev = get_ahci_device(&s->fingerprint);
126 * Clean up the PCI device, then terminate the QEMU instance.
128 static void ahci_shutdown(AHCIQState *ahci)
130 QOSState *qs = ahci->parent;
132 ahci_clean_mem(ahci);
133 free_ahci_device(ahci->dev);
139 * Boot and fully enable the HBA device.
140 * @see ahci_boot, ahci_pci_enable and ahci_hba_enable.
142 static AHCIQState *ahci_boot_and_enable(void)
147 ahci_pci_enable(ahci);
148 ahci_hba_enable(ahci);
153 /*** Specification Adherence Tests ***/
156 * Implementation for test_pci_spec. Ensures PCI configuration space is sane.
158 static void ahci_test_pci_spec(AHCIQState *ahci)
164 /* Most of these bits should start cleared until we turn them on. */
165 data = qpci_config_readw(ahci->dev, PCI_COMMAND);
166 ASSERT_BIT_CLEAR(data, PCI_COMMAND_MEMORY);
167 ASSERT_BIT_CLEAR(data, PCI_COMMAND_MASTER);
168 ASSERT_BIT_CLEAR(data, PCI_COMMAND_SPECIAL); /* Reserved */
169 ASSERT_BIT_CLEAR(data, PCI_COMMAND_VGA_PALETTE); /* Reserved */
170 ASSERT_BIT_CLEAR(data, PCI_COMMAND_PARITY);
171 ASSERT_BIT_CLEAR(data, PCI_COMMAND_WAIT); /* Reserved */
172 ASSERT_BIT_CLEAR(data, PCI_COMMAND_SERR);
173 ASSERT_BIT_CLEAR(data, PCI_COMMAND_FAST_BACK);
174 ASSERT_BIT_CLEAR(data, PCI_COMMAND_INTX_DISABLE);
175 ASSERT_BIT_CLEAR(data, 0xF800); /* Reserved */
177 data = qpci_config_readw(ahci->dev, PCI_STATUS);
178 ASSERT_BIT_CLEAR(data, 0x01 | 0x02 | 0x04); /* Reserved */
179 ASSERT_BIT_CLEAR(data, PCI_STATUS_INTERRUPT);
180 ASSERT_BIT_SET(data, PCI_STATUS_CAP_LIST); /* must be set */
181 ASSERT_BIT_CLEAR(data, PCI_STATUS_UDF); /* Reserved */
182 ASSERT_BIT_CLEAR(data, PCI_STATUS_PARITY);
183 ASSERT_BIT_CLEAR(data, PCI_STATUS_SIG_TARGET_ABORT);
184 ASSERT_BIT_CLEAR(data, PCI_STATUS_REC_TARGET_ABORT);
185 ASSERT_BIT_CLEAR(data, PCI_STATUS_REC_MASTER_ABORT);
186 ASSERT_BIT_CLEAR(data, PCI_STATUS_SIG_SYSTEM_ERROR);
187 ASSERT_BIT_CLEAR(data, PCI_STATUS_DETECTED_PARITY);
189 /* RID occupies the low byte, CCs occupy the high three. */
190 datal = qpci_config_readl(ahci->dev, PCI_CLASS_REVISION);
192 /* AHCI 1.3 specifies that at-boot, the RID should reset to 0x00,
193 * Though in practice this is likely seldom true. */
194 ASSERT_BIT_CLEAR(datal, 0xFF);
197 /* BCC *must* equal 0x01. */
198 g_assert_cmphex(PCI_BCC(datal), ==, 0x01);
199 if (PCI_SCC(datal) == 0x01) {
201 ASSERT_BIT_SET(0x80000000, datal);
202 ASSERT_BIT_CLEAR(0x60000000, datal);
203 } else if (PCI_SCC(datal) == 0x04) {
205 g_assert_cmphex(PCI_PI(datal), ==, 0);
206 } else if (PCI_SCC(datal) == 0x06) {
208 g_assert_cmphex(PCI_PI(datal), ==, 0x01);
210 g_assert_not_reached();
213 datab = qpci_config_readb(ahci->dev, PCI_CACHE_LINE_SIZE);
214 g_assert_cmphex(datab, ==, 0);
216 datab = qpci_config_readb(ahci->dev, PCI_LATENCY_TIMER);
217 g_assert_cmphex(datab, ==, 0);
219 /* Only the bottom 7 bits must be off. */
220 datab = qpci_config_readb(ahci->dev, PCI_HEADER_TYPE);
221 ASSERT_BIT_CLEAR(datab, 0x7F);
223 /* BIST is optional, but the low 7 bits must always start off regardless. */
224 datab = qpci_config_readb(ahci->dev, PCI_BIST);
225 ASSERT_BIT_CLEAR(datab, 0x7F);
227 /* BARS 0-4 do not have a boot spec, but ABAR/BAR5 must be clean. */
228 datal = qpci_config_readl(ahci->dev, PCI_BASE_ADDRESS_5);
229 g_assert_cmphex(datal, ==, 0);
231 qpci_config_writel(ahci->dev, PCI_BASE_ADDRESS_5, 0xFFFFFFFF);
232 datal = qpci_config_readl(ahci->dev, PCI_BASE_ADDRESS_5);
233 /* ABAR must be 32-bit, memory mapped, non-prefetchable and
234 * must be >= 512 bytes. To that end, bits 0-8 must be off. */
235 ASSERT_BIT_CLEAR(datal, 0xFF);
237 /* Capability list MUST be present, */
238 datal = qpci_config_readl(ahci->dev, PCI_CAPABILITY_LIST);
239 /* But these bits are reserved. */
240 ASSERT_BIT_CLEAR(datal, ~0xFF);
241 g_assert_cmphex(datal, !=, 0);
243 /* Check specification adherence for capability extenstions. */
244 data = qpci_config_readw(ahci->dev, datal);
246 switch (ahci->fingerprint) {
247 case AHCI_INTEL_ICH9:
248 /* Intel ICH9 Family Datasheet 14.1.19 p.550 */
249 g_assert_cmphex((data & 0xFF), ==, PCI_CAP_ID_MSI);
252 /* AHCI 1.3, Section 2.1.14 -- CAP must point to PMCAP. */
253 g_assert_cmphex((data & 0xFF), ==, PCI_CAP_ID_PM);
256 ahci_test_pci_caps(ahci, data, (uint8_t)datal);
259 datal = qpci_config_readl(ahci->dev, PCI_CAPABILITY_LIST + 4);
260 g_assert_cmphex(datal, ==, 0);
262 /* IPIN might vary, but ILINE must be off. */
263 datab = qpci_config_readb(ahci->dev, PCI_INTERRUPT_LINE);
264 g_assert_cmphex(datab, ==, 0);
268 * Test PCI capabilities for AHCI specification adherence.
270 static void ahci_test_pci_caps(AHCIQState *ahci, uint16_t header,
273 uint8_t cid = header & 0xFF;
274 uint8_t next = header >> 8;
276 g_test_message("CID: %02x; next: %02x", cid, next);
280 ahci_test_pmcap(ahci, offset);
283 ahci_test_msicap(ahci, offset);
285 case PCI_CAP_ID_SATA:
286 ahci_test_satacap(ahci, offset);
290 g_test_message("Unknown CAP 0x%02x", cid);
294 ahci_test_pci_caps(ahci, qpci_config_readw(ahci->dev, next), next);
299 * Test SATA PCI capabilitity for AHCI specification adherence.
301 static void ahci_test_satacap(AHCIQState *ahci, uint8_t offset)
306 g_test_message("Verifying SATACAP");
308 /* Assert that the SATACAP version is 1.0, And reserved bits are empty. */
309 dataw = qpci_config_readw(ahci->dev, offset + 2);
310 g_assert_cmphex(dataw, ==, 0x10);
312 /* Grab the SATACR1 register. */
313 datal = qpci_config_readw(ahci->dev, offset + 4);
315 switch (datal & 0x0F) {
316 case 0x04: /* BAR0 */
317 case 0x05: /* BAR1 */
321 case 0x09: /* BAR5 */
322 case 0x0F: /* Immediately following SATACR1 in PCI config space. */
325 /* Invalid BARLOC for the Index Data Pair. */
326 g_assert_not_reached();
330 g_assert_cmphex((datal >> 24), ==, 0x00);
334 * Test MSI PCI capability for AHCI specification adherence.
336 static void ahci_test_msicap(AHCIQState *ahci, uint8_t offset)
341 g_test_message("Verifying MSICAP");
343 dataw = qpci_config_readw(ahci->dev, offset + PCI_MSI_FLAGS);
344 ASSERT_BIT_CLEAR(dataw, PCI_MSI_FLAGS_ENABLE);
345 ASSERT_BIT_CLEAR(dataw, PCI_MSI_FLAGS_QSIZE);
346 ASSERT_BIT_CLEAR(dataw, PCI_MSI_FLAGS_RESERVED);
348 datal = qpci_config_readl(ahci->dev, offset + PCI_MSI_ADDRESS_LO);
349 g_assert_cmphex(datal, ==, 0);
351 if (dataw & PCI_MSI_FLAGS_64BIT) {
352 g_test_message("MSICAP is 64bit");
353 datal = qpci_config_readl(ahci->dev, offset + PCI_MSI_ADDRESS_HI);
354 g_assert_cmphex(datal, ==, 0);
355 dataw = qpci_config_readw(ahci->dev, offset + PCI_MSI_DATA_64);
356 g_assert_cmphex(dataw, ==, 0);
358 g_test_message("MSICAP is 32bit");
359 dataw = qpci_config_readw(ahci->dev, offset + PCI_MSI_DATA_32);
360 g_assert_cmphex(dataw, ==, 0);
365 * Test Power Management PCI capability for AHCI specification adherence.
367 static void ahci_test_pmcap(AHCIQState *ahci, uint8_t offset)
371 g_test_message("Verifying PMCAP");
373 dataw = qpci_config_readw(ahci->dev, offset + PCI_PM_PMC);
374 ASSERT_BIT_CLEAR(dataw, PCI_PM_CAP_PME_CLOCK);
375 ASSERT_BIT_CLEAR(dataw, PCI_PM_CAP_RESERVED);
376 ASSERT_BIT_CLEAR(dataw, PCI_PM_CAP_D1);
377 ASSERT_BIT_CLEAR(dataw, PCI_PM_CAP_D2);
379 dataw = qpci_config_readw(ahci->dev, offset + PCI_PM_CTRL);
380 ASSERT_BIT_CLEAR(dataw, PCI_PM_CTRL_STATE_MASK);
381 ASSERT_BIT_CLEAR(dataw, PCI_PM_CTRL_RESERVED);
382 ASSERT_BIT_CLEAR(dataw, PCI_PM_CTRL_DATA_SEL_MASK);
383 ASSERT_BIT_CLEAR(dataw, PCI_PM_CTRL_DATA_SCALE_MASK);
386 static void ahci_test_hba_spec(AHCIQState *ahci)
394 g_assert(ahci != NULL);
397 * Note that the AHCI spec does expect the BIOS to set up a few things:
398 * CAP.SSS - Support for staggered spin-up (t/f)
399 * CAP.SMPS - Support for mechanical presence switches (t/f)
400 * PI - Ports Implemented (1-32)
401 * PxCMD.HPCP - Hot Plug Capable Port
402 * PxCMD.MPSP - Mechanical Presence Switch Present
403 * PxCMD.CPD - Cold Presence Detection support
405 * Additional items are touched if CAP.SSS is on, see AHCI 10.1.1 p.97:
406 * Foreach Port Implemented:
407 * -PxCMD.ST, PxCMD.CR, PxCMD.FRE, PxCMD.FR, PxSCTL.DET are 0
408 * -PxCLB/U and PxFB/U are set to valid regions in memory
409 * -PxSUD is set to 1.
410 * -PxSSTS.DET is polled for presence; if detected, we continue:
411 * -PxSERR is cleared with 1's.
412 * -If PxTFD.STS.BSY, PxTFD.STS.DRQ, and PxTFD.STS.ERR are all zero,
413 * the device is ready.
416 /* 1 CAP - Capabilities Register */
417 ahci->cap = ahci_rreg(ahci, AHCI_CAP);
418 ASSERT_BIT_CLEAR(ahci->cap, AHCI_CAP_RESERVED);
420 /* 2 GHC - Global Host Control */
421 reg = ahci_rreg(ahci, AHCI_GHC);
422 ASSERT_BIT_CLEAR(reg, AHCI_GHC_HR);
423 ASSERT_BIT_CLEAR(reg, AHCI_GHC_IE);
424 ASSERT_BIT_CLEAR(reg, AHCI_GHC_MRSM);
425 if (BITSET(ahci->cap, AHCI_CAP_SAM)) {
426 g_test_message("Supports AHCI-Only Mode: GHC_AE is Read-Only.");
427 ASSERT_BIT_SET(reg, AHCI_GHC_AE);
429 g_test_message("Supports AHCI/Legacy mix.");
430 ASSERT_BIT_CLEAR(reg, AHCI_GHC_AE);
433 /* 3 IS - Interrupt Status */
434 reg = ahci_rreg(ahci, AHCI_IS);
435 g_assert_cmphex(reg, ==, 0);
437 /* 4 PI - Ports Implemented */
438 ports = ahci_rreg(ahci, AHCI_PI);
439 /* Ports Implemented must be non-zero. */
440 g_assert_cmphex(ports, !=, 0);
441 /* Ports Implemented must be <= Number of Ports. */
442 nports_impl = ctpopl(ports);
443 g_assert_cmpuint(((AHCI_CAP_NP & ahci->cap) + 1), >=, nports_impl);
445 /* Ports must be within the proper range. Given a mapping of SIZE,
446 * 256 bytes are used for global HBA control, and the rest is used
447 * for ports data, at 0x80 bytes each. */
448 g_assert_cmphex(ahci->barsize, >, 0);
449 maxports = (ahci->barsize - HBA_DATA_REGION_SIZE) / HBA_PORT_DATA_SIZE;
450 /* e.g, 30 ports for 4K of memory. (4096 - 256) / 128 = 30 */
451 g_assert_cmphex((reg >> maxports), ==, 0);
454 reg = ahci_rreg(ahci, AHCI_VS);
456 case AHCI_VERSION_0_95:
457 case AHCI_VERSION_1_0:
458 case AHCI_VERSION_1_1:
459 case AHCI_VERSION_1_2:
460 case AHCI_VERSION_1_3:
463 g_assert_not_reached();
466 /* 6 Command Completion Coalescing Control: depends on CAP.CCCS. */
467 reg = ahci_rreg(ahci, AHCI_CCCCTL);
468 if (BITSET(ahci->cap, AHCI_CAP_CCCS)) {
469 ASSERT_BIT_CLEAR(reg, AHCI_CCCCTL_EN);
470 ASSERT_BIT_CLEAR(reg, AHCI_CCCCTL_RESERVED);
471 ASSERT_BIT_SET(reg, AHCI_CCCCTL_CC);
472 ASSERT_BIT_SET(reg, AHCI_CCCCTL_TV);
474 g_assert_cmphex(reg, ==, 0);
478 reg = ahci_rreg(ahci, AHCI_CCCPORTS);
479 /* Must be zeroes initially regardless of CAP.CCCS */
480 g_assert_cmphex(reg, ==, 0);
483 reg = ahci_rreg(ahci, AHCI_EMLOC);
484 if (BITCLR(ahci->cap, AHCI_CAP_EMS)) {
485 g_assert_cmphex(reg, ==, 0);
489 reg = ahci_rreg(ahci, AHCI_EMCTL);
490 if (BITSET(ahci->cap, AHCI_CAP_EMS)) {
491 ASSERT_BIT_CLEAR(reg, AHCI_EMCTL_STSMR);
492 ASSERT_BIT_CLEAR(reg, AHCI_EMCTL_CTLTM);
493 ASSERT_BIT_CLEAR(reg, AHCI_EMCTL_CTLRST);
494 ASSERT_BIT_CLEAR(reg, AHCI_EMCTL_RESERVED);
496 g_assert_cmphex(reg, ==, 0);
499 /* 10 CAP2 -- Capabilities Extended */
500 ahci->cap2 = ahci_rreg(ahci, AHCI_CAP2);
501 ASSERT_BIT_CLEAR(ahci->cap2, AHCI_CAP2_RESERVED);
503 /* 11 BOHC -- Bios/OS Handoff Control */
504 reg = ahci_rreg(ahci, AHCI_BOHC);
505 g_assert_cmphex(reg, ==, 0);
507 /* 12 -- 23: Reserved */
508 g_test_message("Verifying HBA reserved area is empty.");
509 for (i = AHCI_RESERVED; i < AHCI_NVMHCI; ++i) {
510 reg = ahci_rreg(ahci, i);
511 g_assert_cmphex(reg, ==, 0);
514 /* 24 -- 39: NVMHCI */
515 if (BITCLR(ahci->cap2, AHCI_CAP2_NVMP)) {
516 g_test_message("Verifying HBA/NVMHCI area is empty.");
517 for (i = AHCI_NVMHCI; i < AHCI_VENDOR; ++i) {
518 reg = ahci_rreg(ahci, i);
519 g_assert_cmphex(reg, ==, 0);
523 /* 40 -- 63: Vendor */
524 g_test_message("Verifying HBA/Vendor area is empty.");
525 for (i = AHCI_VENDOR; i < AHCI_PORTS; ++i) {
526 reg = ahci_rreg(ahci, i);
527 g_assert_cmphex(reg, ==, 0);
530 /* 64 -- XX: Port Space */
531 for (i = 0; ports || (i < maxports); ports >>= 1, ++i) {
532 if (BITSET(ports, 0x1)) {
533 g_test_message("Testing port %u for spec", i);
534 ahci_test_port_spec(ahci, i);
537 uint16_t low = AHCI_PORTS + (32 * i);
538 uint16_t high = AHCI_PORTS + (32 * (i + 1));
539 g_test_message("Asserting unimplemented port %u "
540 "(reg [%u-%u]) is empty.",
542 for (j = low; j < high; ++j) {
543 reg = ahci_rreg(ahci, j);
544 g_assert_cmphex(reg, ==, 0);
551 * Test the memory space for one port for specification adherence.
553 static void ahci_test_port_spec(AHCIQState *ahci, uint8_t port)
559 reg = ahci_px_rreg(ahci, port, AHCI_PX_CLB);
560 ASSERT_BIT_CLEAR(reg, AHCI_PX_CLB_RESERVED);
563 if (BITCLR(ahci->cap, AHCI_CAP_S64A)) {
564 reg = ahci_px_rreg(ahci, port, AHCI_PX_CLBU);
565 g_assert_cmphex(reg, ==, 0);
569 reg = ahci_px_rreg(ahci, port, AHCI_PX_FB);
570 ASSERT_BIT_CLEAR(reg, AHCI_PX_FB_RESERVED);
573 if (BITCLR(ahci->cap, AHCI_CAP_S64A)) {
574 reg = ahci_px_rreg(ahci, port, AHCI_PX_FBU);
575 g_assert_cmphex(reg, ==, 0);
579 reg = ahci_px_rreg(ahci, port, AHCI_PX_IS);
580 g_assert_cmphex(reg, ==, 0);
583 reg = ahci_px_rreg(ahci, port, AHCI_PX_IE);
584 g_assert_cmphex(reg, ==, 0);
587 reg = ahci_px_rreg(ahci, port, AHCI_PX_CMD);
588 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_FRE);
589 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_RESERVED);
590 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_CCS);
591 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_FR);
592 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_CR);
593 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_PMA); /* And RW only if CAP.SPM */
594 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_APSTE); /* RW only if CAP2.APST */
595 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_ATAPI);
596 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_DLAE);
597 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_ALPE); /* RW only if CAP.SALP */
598 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_ASP); /* RW only if CAP.SALP */
599 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_ICC);
600 /* If CPDetect support does not exist, CPState must be off. */
601 if (BITCLR(reg, AHCI_PX_CMD_CPD)) {
602 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_CPS);
604 /* If MPSPresence is not set, MPSState must be off. */
605 if (BITCLR(reg, AHCI_PX_CMD_MPSP)) {
606 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_MPSS);
608 /* If we do not support MPS, MPSS and MPSP must be off. */
609 if (BITCLR(ahci->cap, AHCI_CAP_SMPS)) {
610 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_MPSS);
611 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_MPSP);
613 /* If, via CPD or MPSP we detect a drive, HPCP must be on. */
614 if (BITANY(reg, AHCI_PX_CMD_CPD | AHCI_PX_CMD_MPSP)) {
615 ASSERT_BIT_SET(reg, AHCI_PX_CMD_HPCP);
617 /* HPCP and ESP cannot both be active. */
618 g_assert(!BITSET(reg, AHCI_PX_CMD_HPCP | AHCI_PX_CMD_ESP));
619 /* If CAP.FBSS is not set, FBSCP must not be set. */
620 if (BITCLR(ahci->cap, AHCI_CAP_FBSS)) {
621 ASSERT_BIT_CLEAR(reg, AHCI_PX_CMD_FBSCP);
625 reg = ahci_px_rreg(ahci, port, AHCI_PX_RES1);
626 g_assert_cmphex(reg, ==, 0);
629 reg = ahci_px_rreg(ahci, port, AHCI_PX_TFD);
630 /* At boot, prior to an FIS being received, the TFD register should be 0x7F,
631 * which breaks down as follows, as seen in AHCI 1.3 sec 3.3.8, p. 27. */
632 ASSERT_BIT_SET(reg, AHCI_PX_TFD_STS_ERR);
633 ASSERT_BIT_SET(reg, AHCI_PX_TFD_STS_CS1);
634 ASSERT_BIT_SET(reg, AHCI_PX_TFD_STS_DRQ);
635 ASSERT_BIT_SET(reg, AHCI_PX_TFD_STS_CS2);
636 ASSERT_BIT_CLEAR(reg, AHCI_PX_TFD_STS_BSY);
637 ASSERT_BIT_CLEAR(reg, AHCI_PX_TFD_ERR);
638 ASSERT_BIT_CLEAR(reg, AHCI_PX_TFD_RESERVED);
641 /* Though AHCI specifies the boot value should be 0xFFFFFFFF,
642 * Even when GHC.ST is zero, the AHCI HBA may receive the initial
643 * D2H register FIS and update the signature asynchronously,
644 * so we cannot expect a value here. AHCI 1.3, sec 3.3.9, pp 27-28 */
646 /* (10) SSTS / SCR0: SStatus */
647 reg = ahci_px_rreg(ahci, port, AHCI_PX_SSTS);
648 ASSERT_BIT_CLEAR(reg, AHCI_PX_SSTS_RESERVED);
649 /* Even though the register should be 0 at boot, it is asynchronous and
650 * prone to change, so we cannot test any well known value. */
652 /* (11) SCTL / SCR2: SControl */
653 reg = ahci_px_rreg(ahci, port, AHCI_PX_SCTL);
654 g_assert_cmphex(reg, ==, 0);
656 /* (12) SERR / SCR1: SError */
657 reg = ahci_px_rreg(ahci, port, AHCI_PX_SERR);
658 g_assert_cmphex(reg, ==, 0);
660 /* (13) SACT / SCR3: SActive */
661 reg = ahci_px_rreg(ahci, port, AHCI_PX_SACT);
662 g_assert_cmphex(reg, ==, 0);
665 reg = ahci_px_rreg(ahci, port, AHCI_PX_CI);
666 g_assert_cmphex(reg, ==, 0);
669 reg = ahci_px_rreg(ahci, port, AHCI_PX_SNTF);
670 g_assert_cmphex(reg, ==, 0);
673 reg = ahci_px_rreg(ahci, port, AHCI_PX_FBS);
674 ASSERT_BIT_CLEAR(reg, AHCI_PX_FBS_EN);
675 ASSERT_BIT_CLEAR(reg, AHCI_PX_FBS_DEC);
676 ASSERT_BIT_CLEAR(reg, AHCI_PX_FBS_SDE);
677 ASSERT_BIT_CLEAR(reg, AHCI_PX_FBS_DEV);
678 ASSERT_BIT_CLEAR(reg, AHCI_PX_FBS_DWE);
679 ASSERT_BIT_CLEAR(reg, AHCI_PX_FBS_RESERVED);
680 if (BITSET(ahci->cap, AHCI_CAP_FBSS)) {
681 /* if Port-Multiplier FIS-based switching avail, ADO must >= 2 */
682 g_assert((reg & AHCI_PX_FBS_ADO) >> ctzl(AHCI_PX_FBS_ADO) >= 2);
685 /* [17 -- 27] RESERVED */
686 for (i = AHCI_PX_RES2; i < AHCI_PX_VS; ++i) {
687 reg = ahci_px_rreg(ahci, port, i);
688 g_assert_cmphex(reg, ==, 0);
691 /* [28 -- 31] Vendor-Specific */
692 for (i = AHCI_PX_VS; i < 32; ++i) {
693 reg = ahci_px_rreg(ahci, port, i);
695 g_test_message("INFO: Vendor register %u non-empty", i);
701 * Utilizing an initialized AHCI HBA, issue an IDENTIFY command to the first
702 * device we see, then read and check the response.
704 static void ahci_test_identify(AHCIQState *ahci)
710 const size_t buffsize = 512;
712 g_assert(ahci != NULL);
715 * This serves as a bit of a tutorial on AHCI device programming:
717 * (1) Create a data buffer for the IDENTIFY response to be sent to
718 * (2) Create a Command Table buffer, where we will store the
719 * command and PRDT (Physical Region Descriptor Table)
720 * (3) Construct an FIS host-to-device command structure, and write it to
721 * the top of the Command Table buffer.
722 * (4) Create one or more Physical Region Descriptors (PRDs) that describe
723 * a location in memory where data may be stored/retrieved.
724 * (5) Write these PRDTs to the bottom (offset 0x80) of the Command Table.
725 * (6) Each AHCI port has up to 32 command slots. Each slot contains a
726 * header that points to a Command Table buffer. Pick an unused slot
727 * and update it to point to the Command Table we have built.
728 * (7) Now: Command #n points to our Command Table, and our Command Table
729 * contains the FIS (that describes our command) and the PRDTL, which
730 * describes our buffer.
731 * (8) We inform the HBA via PxCI (Command Issue) that the command in slot
732 * #n is ready for processing.
735 /* Pick the first implemented and running port */
736 px = ahci_port_select(ahci);
737 g_test_message("Selected port %u for test", px);
739 /* Clear out the FIS Receive area and any pending interrupts. */
740 ahci_port_clear(ahci, px);
742 /* "Read" 512 bytes using CMD_IDENTIFY into the host buffer. */
743 ahci_io(ahci, px, CMD_IDENTIFY, &buff, buffsize, 0);
745 /* Check serial number/version in the buffer */
746 /* NB: IDENTIFY strings are packed in 16bit little endian chunks.
747 * Since we copy byte-for-byte in ahci-test, on both LE and BE, we need to
748 * unchunk this data. By contrast, ide-test copies 2 bytes at a time, and
749 * as a consequence, only needs to unchunk the data on LE machines. */
750 string_bswap16(&buff[10], 20);
751 rc = memcmp(&buff[10], "testdisk ", 20);
752 g_assert_cmphex(rc, ==, 0);
754 string_bswap16(&buff[23], 8);
755 rc = memcmp(&buff[23], "version ", 8);
756 g_assert_cmphex(rc, ==, 0);
758 sect_size = le16_to_cpu(*((uint16_t *)(&buff[5])));
759 g_assert_cmphex(sect_size, ==, AHCI_SECTOR_SIZE);
762 static void ahci_test_io_rw_simple(AHCIQState *ahci, unsigned bufsize,
763 uint64_t sector, uint8_t read_cmd,
768 unsigned char *tx = g_malloc(bufsize);
769 unsigned char *rx = g_malloc0(bufsize);
771 g_assert(ahci != NULL);
773 /* Pick the first running port and clear it. */
774 port = ahci_port_select(ahci);
775 ahci_port_clear(ahci, port);
777 /*** Create pattern and transfer to guest ***/
778 /* Data buffer in the guest */
779 ptr = ahci_alloc(ahci, bufsize);
782 /* Write some indicative pattern to our buffer. */
783 generate_pattern(tx, bufsize, AHCI_SECTOR_SIZE);
784 memwrite(ptr, tx, bufsize);
786 /* Write this buffer to disk, then read it back to the DMA buffer. */
787 ahci_guest_io(ahci, port, write_cmd, ptr, bufsize, sector);
788 qmemset(ptr, 0x00, bufsize);
789 ahci_guest_io(ahci, port, read_cmd, ptr, bufsize, sector);
791 /*** Read back the Data ***/
792 memread(ptr, rx, bufsize);
793 g_assert_cmphex(memcmp(tx, rx, bufsize), ==, 0);
795 ahci_free(ahci, ptr);
800 static void ahci_test_nondata(AHCIQState *ahci, uint8_t ide_cmd)
806 px = ahci_port_select(ahci);
807 ahci_port_clear(ahci, px);
810 cmd = ahci_command_create(ide_cmd);
811 ahci_command_commit(ahci, cmd, px);
812 ahci_command_issue(ahci, cmd);
813 ahci_command_verify(ahci, cmd);
814 ahci_command_free(cmd);
817 static void ahci_test_flush(AHCIQState *ahci)
819 ahci_test_nondata(ahci, CMD_FLUSH_CACHE);
823 /******************************************************************************/
824 /* Test Interfaces */
825 /******************************************************************************/
828 * Basic sanity test to boot a machine, find an AHCI device, and shutdown.
830 static void test_sanity(void)
838 * Ensure that the PCI configuration space for the AHCI device is in-line with
839 * the AHCI 1.3 specification for initial values.
841 static void test_pci_spec(void)
845 ahci_test_pci_spec(ahci);
850 * Engage the PCI AHCI device and sanity check the response.
851 * Perform additional PCI config space bringup for the HBA.
853 static void test_pci_enable(void)
858 ahci_pci_enable(ahci);
863 * Investigate the memory mapped regions of the HBA,
864 * and test them for AHCI specification adherence.
866 static void test_hba_spec(void)
871 ahci_pci_enable(ahci);
872 ahci_test_hba_spec(ahci);
877 * Engage the HBA functionality of the AHCI PCI device,
878 * and bring it into a functional idle state.
880 static void test_hba_enable(void)
885 ahci_pci_enable(ahci);
886 ahci_hba_enable(ahci);
891 * Bring up the device and issue an IDENTIFY command.
892 * Inspect the state of the HBA device and the data returned.
894 static void test_identify(void)
898 ahci = ahci_boot_and_enable();
899 ahci_test_identify(ahci);
904 * Fragmented DMA test: Perform a standard 4K DMA read/write
905 * test, but make sure the physical regions are fragmented to
906 * be very small, each just 32 bytes, to see how AHCI performs
907 * with chunks defined to be much less than a sector.
909 static void test_dma_fragmented(void)
914 size_t bufsize = 4096;
915 unsigned char *tx = g_malloc(bufsize);
916 unsigned char *rx = g_malloc0(bufsize);
919 ahci = ahci_boot_and_enable();
920 px = ahci_port_select(ahci);
921 ahci_port_clear(ahci, px);
924 generate_pattern(tx, bufsize, AHCI_SECTOR_SIZE);
926 /* Create a DMA buffer in guest memory, and write our pattern to it. */
927 ptr = guest_alloc(ahci->parent->alloc, bufsize);
929 memwrite(ptr, tx, bufsize);
931 cmd = ahci_command_create(CMD_WRITE_DMA);
932 ahci_command_adjust(cmd, 0, ptr, bufsize, 32);
933 ahci_command_commit(ahci, cmd, px);
934 ahci_command_issue(ahci, cmd);
935 ahci_command_verify(ahci, cmd);
938 cmd = ahci_command_create(CMD_READ_DMA);
939 ahci_command_adjust(cmd, 0, ptr, bufsize, 32);
940 ahci_command_commit(ahci, cmd, px);
941 ahci_command_issue(ahci, cmd);
942 ahci_command_verify(ahci, cmd);
945 /* Read back the guest's receive buffer into local memory */
946 memread(ptr, rx, bufsize);
947 guest_free(ahci->parent->alloc, ptr);
949 g_assert_cmphex(memcmp(tx, rx, bufsize), ==, 0);
957 static void test_flush(void)
961 ahci = ahci_boot_and_enable();
962 ahci_test_flush(ahci);
966 /******************************************************************************/
967 /* AHCI I/O Test Matrix Definitions */
971 LEN_SIMPLE = LEN_BEGIN,
978 static const char *buff_len_str[NUM_LENGTHS] = { "simple", "double",
983 ADDR_MODE_LBA28 = ADDR_MODE_BEGIN,
988 static const char *addr_mode_str[NUM_ADDR_MODES] = { "lba28", "lba48" };
992 MODE_PIO = MODE_BEGIN,
997 static const char *io_mode_str[NUM_MODES] = { "pio", "dma" };
1008 OFFSET_ZERO = OFFSET_BEGIN,
1014 static const char *offset_str[NUM_OFFSETS] = { "zero", "low", "high" };
1016 typedef struct AHCIIOTestOptions {
1017 enum BuffLen length;
1018 enum AddrMode address_type;
1019 enum IOMode io_type;
1020 enum OffsetType offset;
1021 } AHCIIOTestOptions;
1023 static uint64_t offset_sector(enum OffsetType ofst,
1024 enum AddrMode addr_type,
1036 ceil = (addr_type == ADDR_MODE_LBA28) ? 0xfffffff : 0xffffffffffff;
1037 ceil = MIN(ceil, TEST_IMAGE_SECTORS - 1);
1038 nsectors = buffsize / AHCI_SECTOR_SIZE;
1039 return ceil - nsectors + 1;
1041 g_assert_not_reached();
1046 * Table of possible I/O ATA commands given a set of enumerations.
1048 static const uint8_t io_cmds[NUM_MODES][NUM_ADDR_MODES][NUM_IO_OPS] = {
1050 [ADDR_MODE_LBA28] = {
1051 [IO_READ] = CMD_READ_PIO,
1052 [IO_WRITE] = CMD_WRITE_PIO },
1053 [ADDR_MODE_LBA48] = {
1054 [IO_READ] = CMD_READ_PIO_EXT,
1055 [IO_WRITE] = CMD_WRITE_PIO_EXT }
1058 [ADDR_MODE_LBA28] = {
1059 [IO_READ] = CMD_READ_DMA,
1060 [IO_WRITE] = CMD_WRITE_DMA },
1061 [ADDR_MODE_LBA48] = {
1062 [IO_READ] = CMD_READ_DMA_EXT,
1063 [IO_WRITE] = CMD_WRITE_DMA_EXT }
1068 * Test a Read/Write pattern using various commands, addressing modes,
1069 * transfer modes, and buffer sizes.
1071 static void test_io_rw_interface(enum AddrMode lba48, enum IOMode dma,
1072 unsigned bufsize, uint64_t sector)
1076 ahci = ahci_boot_and_enable();
1077 ahci_test_io_rw_simple(ahci, bufsize, sector,
1078 io_cmds[dma][lba48][IO_READ],
1079 io_cmds[dma][lba48][IO_WRITE]);
1080 ahci_shutdown(ahci);
1084 * Demultiplex the test data and invoke the actual test routine.
1086 static void test_io_interface(gconstpointer opaque)
1088 AHCIIOTestOptions *opts = (AHCIIOTestOptions *)opaque;
1092 switch (opts->length) {
1100 bufsize = 4096 * 64;
1106 g_assert_not_reached();
1109 sector = offset_sector(opts->offset, opts->address_type, bufsize);
1110 test_io_rw_interface(opts->address_type, opts->io_type, bufsize, sector);
1115 static void create_ahci_io_test(enum IOMode type, enum AddrMode addr,
1116 enum BuffLen len, enum OffsetType offset)
1118 static const char *arch;
1120 AHCIIOTestOptions *opts = g_malloc(sizeof(AHCIIOTestOptions));
1123 opts->address_type = addr;
1124 opts->io_type = type;
1125 opts->offset = offset;
1128 arch = qtest_get_arch();
1131 name = g_strdup_printf("/%s/ahci/io/%s/%s/%s/%s", arch,
1133 addr_mode_str[addr],
1135 offset_str[offset]);
1137 g_test_add_data_func(name, opts, test_io_interface);
1141 /******************************************************************************/
1143 int main(int argc, char **argv)
1150 static struct option long_options[] = {
1151 {"pedantic", no_argument, 0, 'p' },
1155 /* Should be first to utilize g_test functionality, So we can see errors. */
1156 g_test_init(&argc, &argv, NULL);
1159 c = getopt_long(argc, argv, "", long_options, NULL);
1170 fprintf(stderr, "Unrecognized ahci_test option.\n");
1171 g_assert_not_reached();
1175 /* Check architecture */
1176 arch = qtest_get_arch();
1177 if (strcmp(arch, "i386") && strcmp(arch, "x86_64")) {
1178 g_test_message("Skipping test for non-x86");
1182 /* Create a temporary qcow2 image */
1183 close(mkstemp(tmp_path));
1184 mkqcow2(tmp_path, TEST_IMAGE_SIZE_MB);
1187 qtest_add_func("/ahci/sanity", test_sanity);
1188 qtest_add_func("/ahci/pci_spec", test_pci_spec);
1189 qtest_add_func("/ahci/pci_enable", test_pci_enable);
1190 qtest_add_func("/ahci/hba_spec", test_hba_spec);
1191 qtest_add_func("/ahci/hba_enable", test_hba_enable);
1192 qtest_add_func("/ahci/identify", test_identify);
1194 for (i = MODE_BEGIN; i < NUM_MODES; i++) {
1195 for (j = ADDR_MODE_BEGIN; j < NUM_ADDR_MODES; j++) {
1196 for (k = LEN_BEGIN; k < NUM_LENGTHS; k++) {
1197 for (m = OFFSET_BEGIN; m < NUM_OFFSETS; m++) {
1198 create_ahci_io_test(i, j, k, m);
1204 qtest_add_func("/ahci/io/dma/lba28/fragmented", test_dma_fragmented);
1206 qtest_add_func("/ahci/flush/simple", test_flush);