4 * Copyright (c) 2013 Kevin Wolf <kwolf@redhat.com>
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
29 #include "libqos/libqos.h"
30 #include "libqos/pci-pc.h"
31 #include "libqos/malloc-pc.h"
33 #include "qemu-common.h"
34 #include "qemu/bswap.h"
35 #include "hw/pci/pci_ids.h"
36 #include "hw/pci/pci_regs.h"
38 #define TEST_IMAGE_SIZE 64 * 1024 * 1024
41 #define IDE_PCI_FUNC 1
43 #define IDE_BASE 0x1f0
44 #define IDE_PRIMARY_IRQ 14
46 #define ATAPI_BLOCK_SIZE 2048
48 /* How many bytes to receive via ATAPI PIO at one time.
49 * Must be less than 0xFFFF. */
50 #define BYTE_COUNT_LIMIT 5120
93 CMD_FLUSH_CACHE
= 0xe7,
103 BM_CMD_WRITE
= 0x8, /* write = from device to memory */
113 PRDT_EOT
= 0x80000000,
116 #define assert_bit_set(data, mask) g_assert_cmphex((data) & (mask), ==, (mask))
117 #define assert_bit_clear(data, mask) g_assert_cmphex((data) & (mask), ==, 0)
119 static QPCIBus
*pcibus
= NULL
;
120 static QGuestAllocator
*guest_malloc
;
122 static char tmp_path
[] = "/tmp/qtest.XXXXXX";
123 static char debug_path
[] = "/tmp/qtest-blkdebug.XXXXXX";
125 static void ide_test_start(const char *cmdline_fmt
, ...)
130 va_start(ap
, cmdline_fmt
);
131 cmdline
= g_strdup_vprintf(cmdline_fmt
, ap
);
134 qtest_start(cmdline
);
135 guest_malloc
= pc_alloc_init();
140 static void ide_test_quit(void)
142 pc_alloc_uninit(guest_malloc
);
147 static QPCIDevice
*get_pci_device(QPCIBar
*bmdma_bar
, QPCIBar
*ide_bar
)
150 uint16_t vendor_id
, device_id
;
153 pcibus
= qpci_init_pc(NULL
);
156 /* Find PCI device and verify it's the right one */
157 dev
= qpci_device_find(pcibus
, QPCI_DEVFN(IDE_PCI_DEV
, IDE_PCI_FUNC
));
158 g_assert(dev
!= NULL
);
160 vendor_id
= qpci_config_readw(dev
, PCI_VENDOR_ID
);
161 device_id
= qpci_config_readw(dev
, PCI_DEVICE_ID
);
162 g_assert(vendor_id
== PCI_VENDOR_ID_INTEL
);
163 g_assert(device_id
== PCI_DEVICE_ID_INTEL_82371SB_1
);
166 *bmdma_bar
= qpci_iomap(dev
, 4, NULL
);
168 *ide_bar
= qpci_legacy_iomap(dev
, IDE_BASE
);
170 qpci_device_enable(dev
);
175 static void free_pci_device(QPCIDevice
*dev
)
177 /* libqos doesn't have a function for this, so free it manually */
181 typedef struct PrdtEntry
{
184 } QEMU_PACKED PrdtEntry
;
186 #define assert_bit_set(data, mask) g_assert_cmphex((data) & (mask), ==, (mask))
187 #define assert_bit_clear(data, mask) g_assert_cmphex((data) & (mask), ==, 0)
189 static uint64_t trim_range_le(uint64_t sector
, uint16_t count
)
191 /* 2-byte range, 6-byte LBA */
192 return cpu_to_le64(((uint64_t)count
<< 48) + sector
);
195 static int send_dma_request(int cmd
, uint64_t sector
, int nb_sectors
,
196 PrdtEntry
*prdt
, int prdt_entries
,
197 void(*post_exec
)(QPCIDevice
*dev
, QPCIBar ide_bar
,
198 uint64_t sector
, int nb_sectors
))
201 QPCIBar bmdma_bar
, ide_bar
;
202 uintptr_t guest_prdt
;
208 dev
= get_pci_device(&bmdma_bar
, &ide_bar
);
216 /* Assuming we only test data reads w/ ATAPI, otherwise we need to know
217 * the SCSI command being sent in the packet, too. */
225 g_assert_not_reached();
228 if (flags
& CMDF_NO_BM
) {
229 qpci_config_writew(dev
, PCI_COMMAND
,
230 PCI_COMMAND_IO
| PCI_COMMAND_MEMORY
);
233 /* Select device 0 */
234 qpci_io_writeb(dev
, ide_bar
, reg_device
, 0 | LBA
);
236 /* Stop any running transfer, clear any pending interrupt */
237 qpci_io_writeb(dev
, bmdma_bar
, bmreg_cmd
, 0);
238 qpci_io_writeb(dev
, bmdma_bar
, bmreg_status
, BM_STS_INTR
);
241 len
= sizeof(*prdt
) * prdt_entries
;
242 guest_prdt
= guest_alloc(guest_malloc
, len
);
243 memwrite(guest_prdt
, prdt
, len
);
244 qpci_io_writel(dev
, bmdma_bar
, bmreg_prdt
, guest_prdt
);
246 /* ATA DMA command */
247 if (cmd
== CMD_PACKET
) {
248 /* Enables ATAPI DMA; otherwise PIO is attempted */
249 qpci_io_writeb(dev
, ide_bar
, reg_feature
, 0x01);
251 if (cmd
== CMD_DSM
) {
253 qpci_io_writeb(dev
, ide_bar
, reg_feature
, 0x01);
255 qpci_io_writeb(dev
, ide_bar
, reg_nsectors
, nb_sectors
);
256 qpci_io_writeb(dev
, ide_bar
, reg_lba_low
, sector
& 0xff);
257 qpci_io_writeb(dev
, ide_bar
, reg_lba_middle
, (sector
>> 8) & 0xff);
258 qpci_io_writeb(dev
, ide_bar
, reg_lba_high
, (sector
>> 16) & 0xff);
261 qpci_io_writeb(dev
, ide_bar
, reg_command
, cmd
);
264 post_exec(dev
, ide_bar
, sector
, nb_sectors
);
267 /* Start DMA transfer */
268 qpci_io_writeb(dev
, bmdma_bar
, bmreg_cmd
,
269 BM_CMD_START
| (from_dev
? BM_CMD_WRITE
: 0));
271 if (flags
& CMDF_ABORT
) {
272 qpci_io_writeb(dev
, bmdma_bar
, bmreg_cmd
, 0);
275 /* Wait for the DMA transfer to complete */
277 status
= qpci_io_readb(dev
, bmdma_bar
, bmreg_status
);
278 } while ((status
& (BM_STS_ACTIVE
| BM_STS_INTR
)) == BM_STS_ACTIVE
);
280 g_assert_cmpint(get_irq(IDE_PRIMARY_IRQ
), ==, !!(status
& BM_STS_INTR
));
282 /* Check IDE status code */
283 assert_bit_set(qpci_io_readb(dev
, ide_bar
, reg_status
), DRDY
);
284 assert_bit_clear(qpci_io_readb(dev
, ide_bar
, reg_status
), BSY
| DRQ
);
286 /* Reading the status register clears the IRQ */
287 g_assert(!get_irq(IDE_PRIMARY_IRQ
));
289 /* Stop DMA transfer if still active */
290 if (status
& BM_STS_ACTIVE
) {
291 qpci_io_writeb(dev
, bmdma_bar
, bmreg_cmd
, 0);
294 free_pci_device(dev
);
299 static void test_bmdma_simple_rw(void)
302 QPCIBar bmdma_bar
, ide_bar
;
307 uintptr_t guest_buf
= guest_alloc(guest_malloc
, len
);
311 .addr
= cpu_to_le32(guest_buf
),
312 .size
= cpu_to_le32(len
| PRDT_EOT
),
316 dev
= get_pci_device(&bmdma_bar
, &ide_bar
);
319 cmpbuf
= g_malloc(len
);
321 /* Write 0x55 pattern to sector 0 */
322 memset(buf
, 0x55, len
);
323 memwrite(guest_buf
, buf
, len
);
325 status
= send_dma_request(CMD_WRITE_DMA
, 0, 1, prdt
,
326 ARRAY_SIZE(prdt
), NULL
);
327 g_assert_cmphex(status
, ==, BM_STS_INTR
);
328 assert_bit_clear(qpci_io_readb(dev
, ide_bar
, reg_status
), DF
| ERR
);
330 /* Write 0xaa pattern to sector 1 */
331 memset(buf
, 0xaa, len
);
332 memwrite(guest_buf
, buf
, len
);
334 status
= send_dma_request(CMD_WRITE_DMA
, 1, 1, prdt
,
335 ARRAY_SIZE(prdt
), NULL
);
336 g_assert_cmphex(status
, ==, BM_STS_INTR
);
337 assert_bit_clear(qpci_io_readb(dev
, ide_bar
, reg_status
), DF
| ERR
);
339 /* Read and verify 0x55 pattern in sector 0 */
340 memset(cmpbuf
, 0x55, len
);
342 status
= send_dma_request(CMD_READ_DMA
, 0, 1, prdt
, ARRAY_SIZE(prdt
), NULL
);
343 g_assert_cmphex(status
, ==, BM_STS_INTR
);
344 assert_bit_clear(qpci_io_readb(dev
, ide_bar
, reg_status
), DF
| ERR
);
346 memread(guest_buf
, buf
, len
);
347 g_assert(memcmp(buf
, cmpbuf
, len
) == 0);
349 /* Read and verify 0xaa pattern in sector 1 */
350 memset(cmpbuf
, 0xaa, len
);
352 status
= send_dma_request(CMD_READ_DMA
, 1, 1, prdt
, ARRAY_SIZE(prdt
), NULL
);
353 g_assert_cmphex(status
, ==, BM_STS_INTR
);
354 assert_bit_clear(qpci_io_readb(dev
, ide_bar
, reg_status
), DF
| ERR
);
356 memread(guest_buf
, buf
, len
);
357 g_assert(memcmp(buf
, cmpbuf
, len
) == 0);
360 free_pci_device(dev
);
365 static void test_bmdma_trim(void)
368 QPCIBar bmdma_bar
, ide_bar
;
370 const uint64_t trim_range
[] = { trim_range_le(0, 2),
372 trim_range_le(10, 1),
374 const uint64_t bad_range
= trim_range_le(TEST_IMAGE_SIZE
/ 512 - 1, 2);
377 uintptr_t guest_buf
= guest_alloc(guest_malloc
, len
);
381 .addr
= cpu_to_le32(guest_buf
),
382 .size
= cpu_to_le32(len
| PRDT_EOT
),
386 dev
= get_pci_device(&bmdma_bar
, &ide_bar
);
391 *((uint64_t *)buf
) = trim_range
[0];
392 *((uint64_t *)buf
+ 1) = trim_range
[1];
394 memwrite(guest_buf
, buf
, 2 * sizeof(uint64_t));
396 status
= send_dma_request(CMD_DSM
, 0, 1, prdt
,
397 ARRAY_SIZE(prdt
), NULL
);
398 g_assert_cmphex(status
, ==, BM_STS_INTR
);
399 assert_bit_clear(qpci_io_readb(dev
, ide_bar
, reg_status
), DF
| ERR
);
401 /* Request contains invalid range */
402 *((uint64_t *)buf
) = trim_range
[2];
403 *((uint64_t *)buf
+ 1) = bad_range
;
405 memwrite(guest_buf
, buf
, 2 * sizeof(uint64_t));
407 status
= send_dma_request(CMD_DSM
, 0, 1, prdt
,
408 ARRAY_SIZE(prdt
), NULL
);
409 g_assert_cmphex(status
, ==, BM_STS_INTR
);
410 assert_bit_set(qpci_io_readb(dev
, ide_bar
, reg_status
), ERR
);
411 assert_bit_set(qpci_io_readb(dev
, ide_bar
, reg_error
), ABRT
);
413 free_pci_device(dev
);
417 static void test_bmdma_short_prdt(void)
420 QPCIBar bmdma_bar
, ide_bar
;
426 .size
= cpu_to_le32(0x10 | PRDT_EOT
),
430 dev
= get_pci_device(&bmdma_bar
, &ide_bar
);
433 status
= send_dma_request(CMD_READ_DMA
, 0, 1,
434 prdt
, ARRAY_SIZE(prdt
), NULL
);
435 g_assert_cmphex(status
, ==, 0);
436 assert_bit_clear(qpci_io_readb(dev
, ide_bar
, reg_status
), DF
| ERR
);
438 /* Abort the request before it completes */
439 status
= send_dma_request(CMD_READ_DMA
| CMDF_ABORT
, 0, 1,
440 prdt
, ARRAY_SIZE(prdt
), NULL
);
441 g_assert_cmphex(status
, ==, 0);
442 assert_bit_clear(qpci_io_readb(dev
, ide_bar
, reg_status
), DF
| ERR
);
443 free_pci_device(dev
);
446 static void test_bmdma_one_sector_short_prdt(void)
449 QPCIBar bmdma_bar
, ide_bar
;
452 /* Read 2 sectors but only give 1 sector in PRDT */
456 .size
= cpu_to_le32(0x200 | PRDT_EOT
),
460 dev
= get_pci_device(&bmdma_bar
, &ide_bar
);
463 status
= send_dma_request(CMD_READ_DMA
, 0, 2,
464 prdt
, ARRAY_SIZE(prdt
), NULL
);
465 g_assert_cmphex(status
, ==, 0);
466 assert_bit_clear(qpci_io_readb(dev
, ide_bar
, reg_status
), DF
| ERR
);
468 /* Abort the request before it completes */
469 status
= send_dma_request(CMD_READ_DMA
| CMDF_ABORT
, 0, 2,
470 prdt
, ARRAY_SIZE(prdt
), NULL
);
471 g_assert_cmphex(status
, ==, 0);
472 assert_bit_clear(qpci_io_readb(dev
, ide_bar
, reg_status
), DF
| ERR
);
473 free_pci_device(dev
);
476 static void test_bmdma_long_prdt(void)
479 QPCIBar bmdma_bar
, ide_bar
;
485 .size
= cpu_to_le32(0x1000 | PRDT_EOT
),
489 dev
= get_pci_device(&bmdma_bar
, &ide_bar
);
492 status
= send_dma_request(CMD_READ_DMA
, 0, 1,
493 prdt
, ARRAY_SIZE(prdt
), NULL
);
494 g_assert_cmphex(status
, ==, BM_STS_ACTIVE
| BM_STS_INTR
);
495 assert_bit_clear(qpci_io_readb(dev
, ide_bar
, reg_status
), DF
| ERR
);
497 /* Abort the request before it completes */
498 status
= send_dma_request(CMD_READ_DMA
| CMDF_ABORT
, 0, 1,
499 prdt
, ARRAY_SIZE(prdt
), NULL
);
500 g_assert_cmphex(status
, ==, BM_STS_INTR
);
501 assert_bit_clear(qpci_io_readb(dev
, ide_bar
, reg_status
), DF
| ERR
);
502 free_pci_device(dev
);
505 static void test_bmdma_no_busmaster(void)
508 QPCIBar bmdma_bar
, ide_bar
;
511 dev
= get_pci_device(&bmdma_bar
, &ide_bar
);
513 /* No PRDT_EOT, each entry addr 0/size 64k, and in theory qemu shouldn't be
514 * able to access it anyway because the Bus Master bit in the PCI command
515 * register isn't set. This is complete nonsense, but it used to be pretty
516 * good at confusing and occasionally crashing qemu. */
517 PrdtEntry prdt
[4096] = { };
519 status
= send_dma_request(CMD_READ_DMA
| CMDF_NO_BM
, 0, 512,
520 prdt
, ARRAY_SIZE(prdt
), NULL
);
522 /* Not entirely clear what the expected result is, but this is what we get
523 * in practice. At least we want to be aware of any changes. */
524 g_assert_cmphex(status
, ==, BM_STS_ACTIVE
| BM_STS_INTR
);
525 assert_bit_clear(qpci_io_readb(dev
, ide_bar
, reg_status
), DF
| ERR
);
526 free_pci_device(dev
);
529 static void test_bmdma_setup(void)
532 "-drive file=%s,if=ide,serial=%s,cache=writeback,format=raw "
533 "-global ide-hd.ver=%s",
534 tmp_path
, "testdisk", "version");
535 qtest_irq_intercept_in(global_qtest
, "ioapic");
538 static void test_bmdma_teardown(void)
543 static void string_cpu_to_be16(uint16_t *s
, size_t bytes
)
545 g_assert((bytes
& 1) == 0);
549 *s
= cpu_to_be16(*s
);
554 static void test_identify(void)
557 QPCIBar bmdma_bar
, ide_bar
;
564 "-drive file=%s,if=ide,serial=%s,cache=writeback,format=raw "
565 "-global ide-hd.ver=%s",
566 tmp_path
, "testdisk", "version");
568 dev
= get_pci_device(&bmdma_bar
, &ide_bar
);
570 /* IDENTIFY command on device 0*/
571 qpci_io_writeb(dev
, ide_bar
, reg_device
, 0);
572 qpci_io_writeb(dev
, ide_bar
, reg_command
, CMD_IDENTIFY
);
574 /* Read in the IDENTIFY buffer and check registers */
575 data
= qpci_io_readb(dev
, ide_bar
, reg_device
);
576 g_assert_cmpint(data
& DEV
, ==, 0);
578 for (i
= 0; i
< 256; i
++) {
579 data
= qpci_io_readb(dev
, ide_bar
, reg_status
);
580 assert_bit_set(data
, DRDY
| DRQ
);
581 assert_bit_clear(data
, BSY
| DF
| ERR
);
583 buf
[i
] = qpci_io_readw(dev
, ide_bar
, reg_data
);
586 data
= qpci_io_readb(dev
, ide_bar
, reg_status
);
587 assert_bit_set(data
, DRDY
);
588 assert_bit_clear(data
, BSY
| DF
| ERR
| DRQ
);
590 /* Check serial number/version in the buffer */
591 string_cpu_to_be16(&buf
[10], 20);
592 ret
= memcmp(&buf
[10], "testdisk ", 20);
595 string_cpu_to_be16(&buf
[23], 8);
596 ret
= memcmp(&buf
[23], "version ", 8);
599 /* Write cache enabled bit */
600 assert_bit_set(buf
[85], 0x20);
603 free_pci_device(dev
);
607 * Write sector 1 with random data to make IDE storage dirty
608 * Needed for flush tests so that flushes actually go though the block layer
610 static void make_dirty(uint8_t device
)
613 QPCIBar bmdma_bar
, ide_bar
;
619 dev
= get_pci_device(&bmdma_bar
, &ide_bar
);
621 guest_buf
= guest_alloc(guest_malloc
, len
);
623 memset(buf
, rand() % 255 + 1, len
);
627 memwrite(guest_buf
, buf
, len
);
631 .addr
= cpu_to_le32(guest_buf
),
632 .size
= cpu_to_le32(len
| PRDT_EOT
),
636 status
= send_dma_request(CMD_WRITE_DMA
, 1, 1, prdt
,
637 ARRAY_SIZE(prdt
), NULL
);
638 g_assert_cmphex(status
, ==, BM_STS_INTR
);
639 assert_bit_clear(qpci_io_readb(dev
, ide_bar
, reg_status
), DF
| ERR
);
642 free_pci_device(dev
);
645 static void test_flush(void)
648 QPCIBar bmdma_bar
, ide_bar
;
652 "-drive file=blkdebug::%s,if=ide,cache=writeback,format=raw",
655 dev
= get_pci_device(&bmdma_bar
, &ide_bar
);
657 qtest_irq_intercept_in(global_qtest
, "ioapic");
659 /* Dirty media so that CMD_FLUSH_CACHE will actually go to disk */
662 /* Delay the completion of the flush request until we explicitly do it */
663 g_free(hmp("qemu-io ide0-hd0 \"break flush_to_os A\""));
665 /* FLUSH CACHE command on device 0*/
666 qpci_io_writeb(dev
, ide_bar
, reg_device
, 0);
667 qpci_io_writeb(dev
, ide_bar
, reg_command
, CMD_FLUSH_CACHE
);
669 /* Check status while request is in flight*/
670 data
= qpci_io_readb(dev
, ide_bar
, reg_status
);
671 assert_bit_set(data
, BSY
| DRDY
);
672 assert_bit_clear(data
, DF
| ERR
| DRQ
);
674 /* Complete the command */
675 g_free(hmp("qemu-io ide0-hd0 \"resume A\""));
677 /* Check registers */
678 data
= qpci_io_readb(dev
, ide_bar
, reg_device
);
679 g_assert_cmpint(data
& DEV
, ==, 0);
682 data
= qpci_io_readb(dev
, ide_bar
, reg_status
);
683 } while (data
& BSY
);
685 assert_bit_set(data
, DRDY
);
686 assert_bit_clear(data
, BSY
| DF
| ERR
| DRQ
);
689 free_pci_device(dev
);
692 static void test_retry_flush(const char *machine
)
695 QPCIBar bmdma_bar
, ide_bar
;
699 prepare_blkdebug_script(debug_path
, "flush_to_disk");
702 "-drive file=blkdebug:%s:%s,if=ide,cache=writeback,format=raw,"
703 "rerror=stop,werror=stop",
704 debug_path
, tmp_path
);
706 dev
= get_pci_device(&bmdma_bar
, &ide_bar
);
708 qtest_irq_intercept_in(global_qtest
, "ioapic");
710 /* Dirty media so that CMD_FLUSH_CACHE will actually go to disk */
713 /* FLUSH CACHE command on device 0*/
714 qpci_io_writeb(dev
, ide_bar
, reg_device
, 0);
715 qpci_io_writeb(dev
, ide_bar
, reg_command
, CMD_FLUSH_CACHE
);
717 /* Check status while request is in flight*/
718 data
= qpci_io_readb(dev
, ide_bar
, reg_status
);
719 assert_bit_set(data
, BSY
| DRDY
);
720 assert_bit_clear(data
, DF
| ERR
| DRQ
);
722 qmp_eventwait("STOP");
724 /* Complete the command */
725 s
= "{'execute':'cont' }";
726 qmp_discard_response(s
);
728 /* Check registers */
729 data
= qpci_io_readb(dev
, ide_bar
, reg_device
);
730 g_assert_cmpint(data
& DEV
, ==, 0);
733 data
= qpci_io_readb(dev
, ide_bar
, reg_status
);
734 } while (data
& BSY
);
736 assert_bit_set(data
, DRDY
);
737 assert_bit_clear(data
, BSY
| DF
| ERR
| DRQ
);
740 free_pci_device(dev
);
743 static void test_flush_nodev(void)
746 QPCIBar bmdma_bar
, ide_bar
;
750 dev
= get_pci_device(&bmdma_bar
, &ide_bar
);
752 /* FLUSH CACHE command on device 0*/
753 qpci_io_writeb(dev
, ide_bar
, reg_device
, 0);
754 qpci_io_writeb(dev
, ide_bar
, reg_command
, CMD_FLUSH_CACHE
);
756 /* Just testing that qemu doesn't crash... */
758 free_pci_device(dev
);
762 static void test_flush_empty_drive(void)
765 QPCIBar bmdma_bar
, ide_bar
;
767 ide_test_start("-device ide-cd,bus=ide.0");
768 dev
= get_pci_device(&bmdma_bar
, &ide_bar
);
770 /* FLUSH CACHE command on device 0 */
771 qpci_io_writeb(dev
, ide_bar
, reg_device
, 0);
772 qpci_io_writeb(dev
, ide_bar
, reg_command
, CMD_FLUSH_CACHE
);
774 /* Just testing that qemu doesn't crash... */
776 free_pci_device(dev
);
780 static void test_pci_retry_flush(void)
782 test_retry_flush("pc");
785 static void test_isa_retry_flush(void)
787 test_retry_flush("isapc");
790 typedef struct Read10CDB
{
798 } __attribute__((__packed__
)) Read10CDB
;
800 static void send_scsi_cdb_read10(QPCIDevice
*dev
, QPCIBar ide_bar
,
801 uint64_t lba
, int nblocks
)
803 Read10CDB pkt
= { .padding
= 0 };
806 g_assert_cmpint(lba
, <=, UINT32_MAX
);
807 g_assert_cmpint(nblocks
, <=, UINT16_MAX
);
808 g_assert_cmpint(nblocks
, >=, 0);
810 /* Construct SCSI CDB packet */
812 pkt
.lba
= cpu_to_be32(lba
);
813 pkt
.nblocks
= cpu_to_be16(nblocks
);
816 for (i
= 0; i
< sizeof(Read10CDB
)/2; i
++) {
817 qpci_io_writew(dev
, ide_bar
, reg_data
,
818 le16_to_cpu(((uint16_t *)&pkt
)[i
]));
822 static void nsleep(int64_t nsecs
)
824 const struct timespec val
= { .tv_nsec
= nsecs
};
825 nanosleep(&val
, NULL
);
829 static uint8_t ide_wait_clear(uint8_t flag
)
832 QPCIBar bmdma_bar
, ide_bar
;
836 dev
= get_pci_device(&bmdma_bar
, &ide_bar
);
838 /* Wait with a 5 second timeout */
841 data
= qpci_io_readb(dev
, ide_bar
, reg_status
);
842 if (!(data
& flag
)) {
843 free_pci_device(dev
);
846 if (difftime(time(NULL
), st
) > 5.0) {
851 g_assert_not_reached();
854 static void ide_wait_intr(int irq
)
865 if (difftime(time(NULL
), st
) > 5.0) {
871 g_assert_not_reached();
874 static void cdrom_pio_impl(int nblocks
)
877 QPCIBar bmdma_bar
, ide_bar
;
879 int patt_blocks
= MAX(16, nblocks
);
880 size_t patt_len
= ATAPI_BLOCK_SIZE
* patt_blocks
;
881 char *pattern
= g_malloc(patt_len
);
882 size_t rxsize
= ATAPI_BLOCK_SIZE
* nblocks
;
883 uint16_t *rx
= g_malloc0(rxsize
);
889 /* Prepopulate the CDROM with an interesting pattern */
890 generate_pattern(pattern
, patt_len
, ATAPI_BLOCK_SIZE
);
891 fh
= fopen(tmp_path
, "w+");
892 ret
= fwrite(pattern
, ATAPI_BLOCK_SIZE
, patt_blocks
, fh
);
893 g_assert_cmpint(ret
, ==, patt_blocks
);
896 ide_test_start("-drive if=none,file=%s,media=cdrom,format=raw,id=sr0,index=0 "
897 "-device ide-cd,drive=sr0,bus=ide.0", tmp_path
);
898 dev
= get_pci_device(&bmdma_bar
, &ide_bar
);
899 qtest_irq_intercept_in(global_qtest
, "ioapic");
901 /* PACKET command on device 0 */
902 qpci_io_writeb(dev
, ide_bar
, reg_device
, 0);
903 qpci_io_writeb(dev
, ide_bar
, reg_lba_middle
, BYTE_COUNT_LIMIT
& 0xFF);
904 qpci_io_writeb(dev
, ide_bar
, reg_lba_high
, (BYTE_COUNT_LIMIT
>> 8 & 0xFF));
905 qpci_io_writeb(dev
, ide_bar
, reg_command
, CMD_PACKET
);
906 /* HP0: Check_Status_A State */
908 data
= ide_wait_clear(BSY
);
909 /* HP1: Send_Packet State */
910 assert_bit_set(data
, DRQ
| DRDY
);
911 assert_bit_clear(data
, ERR
| DF
| BSY
);
913 /* SCSI CDB (READ10) -- read n*2048 bytes from block 0 */
914 send_scsi_cdb_read10(dev
, ide_bar
, 0, nblocks
);
916 /* Read data back: occurs in bursts of 'BYTE_COUNT_LIMIT' bytes.
917 * If BYTE_COUNT_LIMIT is odd, we transfer BYTE_COUNT_LIMIT - 1 bytes.
918 * We allow an odd limit only when the remaining transfer size is
919 * less than BYTE_COUNT_LIMIT. However, SCSI's read10 command can only
920 * request n blocks, so our request size is always even.
921 * For this reason, we assume there is never a hanging byte to fetch. */
922 g_assert(!(rxsize
& 1));
923 limit
= BYTE_COUNT_LIMIT
& ~1;
924 for (i
= 0; i
< DIV_ROUND_UP(rxsize
, limit
); i
++) {
925 size_t offset
= i
* (limit
/ 2);
926 size_t rem
= (rxsize
/ 2) - offset
;
928 /* HP3: INTRQ_Wait */
929 ide_wait_intr(IDE_PRIMARY_IRQ
);
931 /* HP2: Check_Status_B (and clear IRQ) */
932 data
= ide_wait_clear(BSY
);
933 assert_bit_set(data
, DRQ
| DRDY
);
934 assert_bit_clear(data
, ERR
| DF
| BSY
);
936 /* HP4: Transfer_Data */
937 for (j
= 0; j
< MIN((limit
/ 2), rem
); j
++) {
938 rx
[offset
+ j
] = cpu_to_le16(qpci_io_readw(dev
, ide_bar
,
943 /* Check for final completion IRQ */
944 ide_wait_intr(IDE_PRIMARY_IRQ
);
946 /* Sanity check final state */
947 data
= ide_wait_clear(DRQ
);
948 assert_bit_set(data
, DRDY
);
949 assert_bit_clear(data
, DRQ
| ERR
| DF
| BSY
);
951 g_assert_cmpint(memcmp(pattern
, rx
, rxsize
), ==, 0);
954 test_bmdma_teardown();
955 free_pci_device(dev
);
958 static void test_cdrom_pio(void)
963 static void test_cdrom_pio_large(void)
965 /* Test a few loops of the PIO DRQ mechanism. */
966 cdrom_pio_impl(BYTE_COUNT_LIMIT
* 4 / ATAPI_BLOCK_SIZE
);
970 static void test_cdrom_dma(void)
972 static const size_t len
= ATAPI_BLOCK_SIZE
;
974 char *pattern
= g_malloc(ATAPI_BLOCK_SIZE
* 16);
975 char *rx
= g_malloc0(len
);
980 ide_test_start("-drive if=none,file=%s,media=cdrom,format=raw,id=sr0,index=0 "
981 "-device ide-cd,drive=sr0,bus=ide.0", tmp_path
);
982 qtest_irq_intercept_in(global_qtest
, "ioapic");
984 guest_buf
= guest_alloc(guest_malloc
, len
);
985 prdt
[0].addr
= cpu_to_le32(guest_buf
);
986 prdt
[0].size
= cpu_to_le32(len
| PRDT_EOT
);
988 generate_pattern(pattern
, ATAPI_BLOCK_SIZE
* 16, ATAPI_BLOCK_SIZE
);
989 fh
= fopen(tmp_path
, "w+");
990 ret
= fwrite(pattern
, ATAPI_BLOCK_SIZE
, 16, fh
);
991 g_assert_cmpint(ret
, ==, 16);
994 send_dma_request(CMD_PACKET
, 0, 1, prdt
, 1, send_scsi_cdb_read10
);
996 /* Read back data from guest memory into local qtest memory */
997 memread(guest_buf
, rx
, len
);
998 g_assert_cmpint(memcmp(pattern
, rx
, len
), ==, 0);
1002 test_bmdma_teardown();
1005 int main(int argc
, char **argv
)
1007 const char *arch
= qtest_get_arch();
1011 /* Check architecture */
1012 if (strcmp(arch
, "i386") && strcmp(arch
, "x86_64")) {
1013 g_test_message("Skipping test for non-x86\n");
1017 /* Create temporary blkdebug instructions */
1018 fd
= mkstemp(debug_path
);
1022 /* Create a temporary raw image */
1023 fd
= mkstemp(tmp_path
);
1025 ret
= ftruncate(fd
, TEST_IMAGE_SIZE
);
1030 g_test_init(&argc
, &argv
, NULL
);
1032 qtest_add_func("/ide/identify", test_identify
);
1034 qtest_add_func("/ide/bmdma/setup", test_bmdma_setup
);
1035 qtest_add_func("/ide/bmdma/simple_rw", test_bmdma_simple_rw
);
1036 qtest_add_func("/ide/bmdma/trim", test_bmdma_trim
);
1037 qtest_add_func("/ide/bmdma/short_prdt", test_bmdma_short_prdt
);
1038 qtest_add_func("/ide/bmdma/one_sector_short_prdt",
1039 test_bmdma_one_sector_short_prdt
);
1040 qtest_add_func("/ide/bmdma/long_prdt", test_bmdma_long_prdt
);
1041 qtest_add_func("/ide/bmdma/no_busmaster", test_bmdma_no_busmaster
);
1042 qtest_add_func("/ide/bmdma/teardown", test_bmdma_teardown
);
1044 qtest_add_func("/ide/flush", test_flush
);
1045 qtest_add_func("/ide/flush/nodev", test_flush_nodev
);
1046 qtest_add_func("/ide/flush/empty_drive", test_flush_empty_drive
);
1047 qtest_add_func("/ide/flush/retry_pci", test_pci_retry_flush
);
1048 qtest_add_func("/ide/flush/retry_isa", test_isa_retry_flush
);
1050 qtest_add_func("/ide/cdrom/pio", test_cdrom_pio
);
1051 qtest_add_func("/ide/cdrom/pio_large", test_cdrom_pio_large
);
1052 qtest_add_func("/ide/cdrom/dma", test_cdrom_dma
);