2 * QEMU IDE disk and CD/DVD-ROM Emulator
4 * Copyright (c) 2003 Fabrice Bellard
5 * Copyright (c) 2006 Openedhand Ltd.
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
27 #include <hw/i386/pc.h>
28 #include <hw/pci/pci.h>
29 #include <hw/isa/isa.h>
30 #include "qemu/error-report.h"
31 #include "qemu/timer.h"
32 #include "sysemu/sysemu.h"
33 #include "sysemu/dma.h"
34 #include "hw/block/block.h"
35 #include "sysemu/block-backend.h"
37 #include <hw/ide/internal.h>
39 /* These values were based on a Seagate ST3500418AS but have been modified
40 to make more sense in QEMU */
41 static const int smart_attributes[][12] = {
42 /* id, flags, hflags, val, wrst, raw (6 bytes), threshold */
43 /* raw read error rate*/
44 { 0x01, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06},
46 { 0x03, 0x03, 0x00, 0x64, 0x64, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
47 /* start stop count */
48 { 0x04, 0x02, 0x00, 0x64, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14},
49 /* remapped sectors */
50 { 0x05, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24},
52 { 0x09, 0x03, 0x00, 0x64, 0x64, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
53 /* power cycle count */
54 { 0x0c, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
55 /* airflow-temperature-celsius */
56 { 190, 0x03, 0x00, 0x45, 0x45, 0x1f, 0x00, 0x1f, 0x1f, 0x00, 0x00, 0x32},
59 static int ide_handle_rw_error(IDEState *s, int error, int op);
60 static void ide_dummy_transfer_stop(IDEState *s);
62 static void padstr(char *str, const char *src, int len)
65 for(i = 0; i < len; i++) {
74 static void put_le16(uint16_t *p, unsigned int v)
79 static void ide_identify_size(IDEState *s)
81 uint16_t *p = (uint16_t *)s->identify_data;
82 put_le16(p + 60, s->nb_sectors);
83 put_le16(p + 61, s->nb_sectors >> 16);
84 put_le16(p + 100, s->nb_sectors);
85 put_le16(p + 101, s->nb_sectors >> 16);
86 put_le16(p + 102, s->nb_sectors >> 32);
87 put_le16(p + 103, s->nb_sectors >> 48);
90 static void ide_identify(IDEState *s)
94 IDEDevice *dev = s->unit ? s->bus->slave : s->bus->master;
96 p = (uint16_t *)s->identify_data;
97 if (s->identify_set) {
100 memset(p, 0, sizeof(s->identify_data));
102 put_le16(p + 0, 0x0040);
103 put_le16(p + 1, s->cylinders);
104 put_le16(p + 3, s->heads);
105 put_le16(p + 4, 512 * s->sectors); /* XXX: retired, remove ? */
106 put_le16(p + 5, 512); /* XXX: retired, remove ? */
107 put_le16(p + 6, s->sectors);
108 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
109 put_le16(p + 20, 3); /* XXX: retired, remove ? */
110 put_le16(p + 21, 512); /* cache size in sectors */
111 put_le16(p + 22, 4); /* ecc bytes */
112 padstr((char *)(p + 23), s->version, 8); /* firmware version */
113 padstr((char *)(p + 27), s->drive_model_str, 40); /* model */
114 #if MAX_MULT_SECTORS > 1
115 put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
117 put_le16(p + 48, 1); /* dword I/O */
118 put_le16(p + 49, (1 << 11) | (1 << 9) | (1 << 8)); /* DMA and LBA supported */
119 put_le16(p + 51, 0x200); /* PIO transfer cycle */
120 put_le16(p + 52, 0x200); /* DMA transfer cycle */
121 put_le16(p + 53, 1 | (1 << 1) | (1 << 2)); /* words 54-58,64-70,88 are valid */
122 put_le16(p + 54, s->cylinders);
123 put_le16(p + 55, s->heads);
124 put_le16(p + 56, s->sectors);
125 oldsize = s->cylinders * s->heads * s->sectors;
126 put_le16(p + 57, oldsize);
127 put_le16(p + 58, oldsize >> 16);
129 put_le16(p + 59, 0x100 | s->mult_sectors);
130 /* *(p + 60) := nb_sectors -- see ide_identify_size */
131 /* *(p + 61) := nb_sectors >> 16 -- see ide_identify_size */
132 put_le16(p + 62, 0x07); /* single word dma0-2 supported */
133 put_le16(p + 63, 0x07); /* mdma0-2 supported */
134 put_le16(p + 64, 0x03); /* pio3-4 supported */
135 put_le16(p + 65, 120);
136 put_le16(p + 66, 120);
137 put_le16(p + 67, 120);
138 put_le16(p + 68, 120);
139 if (dev && dev->conf.discard_granularity) {
140 put_le16(p + 69, (1 << 14)); /* determinate TRIM behavior */
144 put_le16(p + 75, s->ncq_queues - 1);
146 put_le16(p + 76, (1 << 8));
149 put_le16(p + 80, 0xf0); /* ata3 -> ata6 supported */
150 put_le16(p + 81, 0x16); /* conforms to ata5 */
151 /* 14=NOP supported, 5=WCACHE supported, 0=SMART supported */
152 put_le16(p + 82, (1 << 14) | (1 << 5) | 1);
153 /* 13=flush_cache_ext,12=flush_cache,10=lba48 */
154 put_le16(p + 83, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10));
155 /* 14=set to 1, 8=has WWN, 1=SMART self test, 0=SMART error logging */
157 put_le16(p + 84, (1 << 14) | (1 << 8) | 0);
159 put_le16(p + 84, (1 << 14) | 0);
161 /* 14 = NOP supported, 5=WCACHE enabled, 0=SMART feature set enabled */
162 if (blk_enable_write_cache(s->blk)) {
163 put_le16(p + 85, (1 << 14) | (1 << 5) | 1);
165 put_le16(p + 85, (1 << 14) | 1);
167 /* 13=flush_cache_ext,12=flush_cache,10=lba48 */
168 put_le16(p + 86, (1 << 13) | (1 <<12) | (1 << 10));
169 /* 14=set to 1, 8=has WWN, 1=SMART self test, 0=SMART error logging */
171 put_le16(p + 87, (1 << 14) | (1 << 8) | 0);
173 put_le16(p + 87, (1 << 14) | 0);
175 put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
176 put_le16(p + 93, 1 | (1 << 14) | 0x2000);
177 /* *(p + 100) := nb_sectors -- see ide_identify_size */
178 /* *(p + 101) := nb_sectors >> 16 -- see ide_identify_size */
179 /* *(p + 102) := nb_sectors >> 32 -- see ide_identify_size */
180 /* *(p + 103) := nb_sectors >> 48 -- see ide_identify_size */
182 if (dev && dev->conf.physical_block_size)
183 put_le16(p + 106, 0x6000 | get_physical_block_exp(&dev->conf));
185 /* LE 16-bit words 111-108 contain 64-bit World Wide Name */
186 put_le16(p + 108, s->wwn >> 48);
187 put_le16(p + 109, s->wwn >> 32);
188 put_le16(p + 110, s->wwn >> 16);
189 put_le16(p + 111, s->wwn);
191 if (dev && dev->conf.discard_granularity) {
192 put_le16(p + 169, 1); /* TRIM support */
195 ide_identify_size(s);
199 memcpy(s->io_buffer, p, sizeof(s->identify_data));
202 static void ide_atapi_identify(IDEState *s)
206 p = (uint16_t *)s->identify_data;
207 if (s->identify_set) {
210 memset(p, 0, sizeof(s->identify_data));
212 /* Removable CDROM, 50us response, 12 byte packets */
213 put_le16(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0));
214 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
215 put_le16(p + 20, 3); /* buffer type */
216 put_le16(p + 21, 512); /* cache size in sectors */
217 put_le16(p + 22, 4); /* ecc bytes */
218 padstr((char *)(p + 23), s->version, 8); /* firmware version */
219 padstr((char *)(p + 27), s->drive_model_str, 40); /* model */
220 put_le16(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */
222 put_le16(p + 49, 1 << 9 | 1 << 8); /* DMA and LBA supported */
223 put_le16(p + 53, 7); /* words 64-70, 54-58, 88 valid */
224 put_le16(p + 62, 7); /* single word dma0-2 supported */
225 put_le16(p + 63, 7); /* mdma0-2 supported */
227 put_le16(p + 49, 1 << 9); /* LBA supported, no DMA */
228 put_le16(p + 53, 3); /* words 64-70, 54-58 valid */
229 put_le16(p + 63, 0x103); /* DMA modes XXX: may be incorrect */
231 put_le16(p + 64, 3); /* pio3-4 supported */
232 put_le16(p + 65, 0xb4); /* minimum DMA multiword tx cycle time */
233 put_le16(p + 66, 0xb4); /* recommended DMA multiword tx cycle time */
234 put_le16(p + 67, 0x12c); /* minimum PIO cycle time without flow control */
235 put_le16(p + 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */
237 put_le16(p + 71, 30); /* in ns */
238 put_le16(p + 72, 30); /* in ns */
241 put_le16(p + 75, s->ncq_queues - 1);
243 put_le16(p + 76, (1 << 8));
246 put_le16(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */
248 put_le16(p + 84, (1 << 8)); /* supports WWN for words 108-111 */
249 put_le16(p + 87, (1 << 8)); /* WWN enabled */
253 put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
257 /* LE 16-bit words 111-108 contain 64-bit World Wide Name */
258 put_le16(p + 108, s->wwn >> 48);
259 put_le16(p + 109, s->wwn >> 32);
260 put_le16(p + 110, s->wwn >> 16);
261 put_le16(p + 111, s->wwn);
267 memcpy(s->io_buffer, p, sizeof(s->identify_data));
270 static void ide_cfata_identify_size(IDEState *s)
272 uint16_t *p = (uint16_t *)s->identify_data;
273 put_le16(p + 7, s->nb_sectors >> 16); /* Sectors per card */
274 put_le16(p + 8, s->nb_sectors); /* Sectors per card */
275 put_le16(p + 60, s->nb_sectors); /* Total LBA sectors */
276 put_le16(p + 61, s->nb_sectors >> 16); /* Total LBA sectors */
279 static void ide_cfata_identify(IDEState *s)
284 p = (uint16_t *)s->identify_data;
285 if (s->identify_set) {
288 memset(p, 0, sizeof(s->identify_data));
290 cur_sec = s->cylinders * s->heads * s->sectors;
292 put_le16(p + 0, 0x848a); /* CF Storage Card signature */
293 put_le16(p + 1, s->cylinders); /* Default cylinders */
294 put_le16(p + 3, s->heads); /* Default heads */
295 put_le16(p + 6, s->sectors); /* Default sectors per track */
296 /* *(p + 7) := nb_sectors >> 16 -- see ide_cfata_identify_size */
297 /* *(p + 8) := nb_sectors -- see ide_cfata_identify_size */
298 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
299 put_le16(p + 22, 0x0004); /* ECC bytes */
300 padstr((char *) (p + 23), s->version, 8); /* Firmware Revision */
301 padstr((char *) (p + 27), s->drive_model_str, 40);/* Model number */
302 #if MAX_MULT_SECTORS > 1
303 put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
305 put_le16(p + 47, 0x0000);
307 put_le16(p + 49, 0x0f00); /* Capabilities */
308 put_le16(p + 51, 0x0002); /* PIO cycle timing mode */
309 put_le16(p + 52, 0x0001); /* DMA cycle timing mode */
310 put_le16(p + 53, 0x0003); /* Translation params valid */
311 put_le16(p + 54, s->cylinders); /* Current cylinders */
312 put_le16(p + 55, s->heads); /* Current heads */
313 put_le16(p + 56, s->sectors); /* Current sectors */
314 put_le16(p + 57, cur_sec); /* Current capacity */
315 put_le16(p + 58, cur_sec >> 16); /* Current capacity */
316 if (s->mult_sectors) /* Multiple sector setting */
317 put_le16(p + 59, 0x100 | s->mult_sectors);
318 /* *(p + 60) := nb_sectors -- see ide_cfata_identify_size */
319 /* *(p + 61) := nb_sectors >> 16 -- see ide_cfata_identify_size */
320 put_le16(p + 63, 0x0203); /* Multiword DMA capability */
321 put_le16(p + 64, 0x0001); /* Flow Control PIO support */
322 put_le16(p + 65, 0x0096); /* Min. Multiword DMA cycle */
323 put_le16(p + 66, 0x0096); /* Rec. Multiword DMA cycle */
324 put_le16(p + 68, 0x00b4); /* Min. PIO cycle time */
325 put_le16(p + 82, 0x400c); /* Command Set supported */
326 put_le16(p + 83, 0x7068); /* Command Set supported */
327 put_le16(p + 84, 0x4000); /* Features supported */
328 put_le16(p + 85, 0x000c); /* Command Set enabled */
329 put_le16(p + 86, 0x7044); /* Command Set enabled */
330 put_le16(p + 87, 0x4000); /* Features enabled */
331 put_le16(p + 91, 0x4060); /* Current APM level */
332 put_le16(p + 129, 0x0002); /* Current features option */
333 put_le16(p + 130, 0x0005); /* Reassigned sectors */
334 put_le16(p + 131, 0x0001); /* Initial power mode */
335 put_le16(p + 132, 0x0000); /* User signature */
336 put_le16(p + 160, 0x8100); /* Power requirement */
337 put_le16(p + 161, 0x8001); /* CF command set */
339 ide_cfata_identify_size(s);
343 memcpy(s->io_buffer, p, sizeof(s->identify_data));
346 static void ide_set_signature(IDEState *s)
348 s->select &= 0xf0; /* clear head */
352 if (s->drive_kind == IDE_CD) {
364 typedef struct TrimAIOCB {
374 static void trim_aio_cancel(BlockAIOCB *acb)
376 TrimAIOCB *iocb = container_of(acb, TrimAIOCB, common);
378 /* Exit the loop so ide_issue_trim_cb will not continue */
379 iocb->j = iocb->qiov->niov - 1;
380 iocb->i = (iocb->qiov->iov[iocb->j].iov_len / 8) - 1;
382 iocb->ret = -ECANCELED;
385 blk_aio_cancel_async(iocb->aiocb);
390 static const AIOCBInfo trim_aiocb_info = {
391 .aiocb_size = sizeof(TrimAIOCB),
392 .cancel_async = trim_aio_cancel,
395 static void ide_trim_bh_cb(void *opaque)
397 TrimAIOCB *iocb = opaque;
399 iocb->common.cb(iocb->common.opaque, iocb->ret);
401 qemu_bh_delete(iocb->bh);
403 qemu_aio_unref(iocb);
406 static void ide_issue_trim_cb(void *opaque, int ret)
408 TrimAIOCB *iocb = opaque;
410 while (iocb->j < iocb->qiov->niov) {
412 while (++iocb->i < iocb->qiov->iov[j].iov_len / 8) {
414 uint64_t *buffer = iocb->qiov->iov[j].iov_base;
416 /* 6-byte LBA + 2-byte range per entry */
417 uint64_t entry = le64_to_cpu(buffer[i]);
418 uint64_t sector = entry & 0x0000ffffffffffffULL;
419 uint16_t count = entry >> 48;
425 /* Got an entry! Submit and exit. */
426 iocb->aiocb = blk_aio_discard(iocb->blk, sector, count,
427 ide_issue_trim_cb, opaque);
440 qemu_bh_schedule(iocb->bh);
444 BlockAIOCB *ide_issue_trim(BlockBackend *blk,
445 int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
446 BlockCompletionFunc *cb, void *opaque)
450 iocb = blk_aio_get(&trim_aiocb_info, blk, cb, opaque);
452 iocb->bh = qemu_bh_new(ide_trim_bh_cb, iocb);
457 ide_issue_trim_cb(iocb, 0);
458 return &iocb->common;
461 void ide_abort_command(IDEState *s)
463 ide_transfer_stop(s);
464 s->status = READY_STAT | ERR_STAT;
468 /* prepare data transfer and tell what to do after */
469 void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
470 EndTransferFunc *end_transfer_func)
472 s->end_transfer_func = end_transfer_func;
474 s->data_end = buf + size;
475 if (!(s->status & ERR_STAT)) {
476 s->status |= DRQ_STAT;
478 if (s->bus->dma->ops->start_transfer) {
479 s->bus->dma->ops->start_transfer(s->bus->dma);
483 static void ide_cmd_done(IDEState *s)
485 if (s->bus->dma->ops->cmd_done) {
486 s->bus->dma->ops->cmd_done(s->bus->dma);
490 static void ide_transfer_halt(IDEState *s,
491 void(*end_transfer_func)(IDEState *),
494 s->end_transfer_func = end_transfer_func;
495 s->data_ptr = s->io_buffer;
496 s->data_end = s->io_buffer;
497 s->status &= ~DRQ_STAT;
503 void ide_transfer_stop(IDEState *s)
505 ide_transfer_halt(s, ide_transfer_stop, true);
508 static void ide_transfer_cancel(IDEState *s)
510 ide_transfer_halt(s, ide_transfer_cancel, false);
513 int64_t ide_get_sector(IDEState *s)
516 if (s->select & 0x40) {
519 sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) |
520 (s->lcyl << 8) | s->sector;
522 sector_num = ((int64_t)s->hob_hcyl << 40) |
523 ((int64_t) s->hob_lcyl << 32) |
524 ((int64_t) s->hob_sector << 24) |
525 ((int64_t) s->hcyl << 16) |
526 ((int64_t) s->lcyl << 8) | s->sector;
529 sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
530 (s->select & 0x0f) * s->sectors + (s->sector - 1);
535 void ide_set_sector(IDEState *s, int64_t sector_num)
538 if (s->select & 0x40) {
540 s->select = (s->select & 0xf0) | (sector_num >> 24);
541 s->hcyl = (sector_num >> 16);
542 s->lcyl = (sector_num >> 8);
543 s->sector = (sector_num);
545 s->sector = sector_num;
546 s->lcyl = sector_num >> 8;
547 s->hcyl = sector_num >> 16;
548 s->hob_sector = sector_num >> 24;
549 s->hob_lcyl = sector_num >> 32;
550 s->hob_hcyl = sector_num >> 40;
553 cyl = sector_num / (s->heads * s->sectors);
554 r = sector_num % (s->heads * s->sectors);
557 s->select = (s->select & 0xf0) | ((r / s->sectors) & 0x0f);
558 s->sector = (r % s->sectors) + 1;
562 static void ide_rw_error(IDEState *s) {
563 ide_abort_command(s);
567 static bool ide_sect_range_ok(IDEState *s,
568 uint64_t sector, uint64_t nb_sectors)
570 uint64_t total_sectors;
572 blk_get_geometry(s->blk, &total_sectors);
573 if (sector > total_sectors || nb_sectors > total_sectors - sector) {
579 static void ide_buffered_readv_cb(void *opaque, int ret)
581 IDEBufferedRequest *req = opaque;
582 if (!req->orphaned) {
584 qemu_iovec_from_buf(req->original_qiov, 0, req->iov.iov_base,
585 req->original_qiov->size);
587 req->original_cb(req->original_opaque, ret);
589 QLIST_REMOVE(req, list);
590 qemu_vfree(req->iov.iov_base);
594 #define MAX_BUFFERED_REQS 16
596 BlockAIOCB *ide_buffered_readv(IDEState *s, int64_t sector_num,
597 QEMUIOVector *iov, int nb_sectors,
598 BlockCompletionFunc *cb, void *opaque)
601 IDEBufferedRequest *req;
604 QLIST_FOREACH(req, &s->buffered_requests, list) {
607 if (c > MAX_BUFFERED_REQS) {
608 return blk_abort_aio_request(s->blk, cb, opaque, -EIO);
611 req = g_new0(IDEBufferedRequest, 1);
612 req->original_qiov = iov;
613 req->original_cb = cb;
614 req->original_opaque = opaque;
615 req->iov.iov_base = qemu_blockalign(blk_bs(s->blk), iov->size);
616 req->iov.iov_len = iov->size;
617 qemu_iovec_init_external(&req->qiov, &req->iov, 1);
619 aioreq = blk_aio_readv(s->blk, sector_num, &req->qiov, nb_sectors,
620 ide_buffered_readv_cb, req);
622 QLIST_INSERT_HEAD(&s->buffered_requests, req, list);
627 * Cancel all pending DMA requests.
628 * Any buffered DMA requests are instantly canceled,
629 * but any pending unbuffered DMA requests must be waited on.
631 void ide_cancel_dma_sync(IDEState *s)
633 IDEBufferedRequest *req;
635 /* First invoke the callbacks of all buffered requests
636 * and flag those requests as orphaned. Ideally there
637 * are no unbuffered (Scatter Gather DMA Requests or
638 * write requests) pending and we can avoid to drain. */
639 QLIST_FOREACH(req, &s->buffered_requests, list) {
640 if (!req->orphaned) {
642 printf("%s: invoking cb %p of buffered request %p with"
643 " -ECANCELED\n", __func__, req->original_cb, req);
645 req->original_cb(req->original_opaque, -ECANCELED);
647 req->orphaned = true;
651 * We can't cancel Scatter Gather DMA in the middle of the
652 * operation or a partial (not full) DMA transfer would reach
653 * the storage so we wait for completion instead (we beahve
654 * like if the DMA was completed by the time the guest trying
655 * to cancel dma with bmdma_cmd_writeb with BM_CMD_START not
658 * In the future we'll be able to safely cancel the I/O if the
659 * whole DMA operation will be submitted to disk with a single
660 * aio operation with preadv/pwritev.
662 if (s->bus->dma->aiocb) {
664 printf("%s: draining all remaining requests", __func__);
667 assert(s->bus->dma->aiocb == NULL);
671 static void ide_sector_read(IDEState *s);
673 static void ide_sector_read_cb(void *opaque, int ret)
675 IDEState *s = opaque;
679 s->status &= ~BUSY_STAT;
681 if (ret == -ECANCELED) {
685 if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO |
691 block_acct_done(blk_get_stats(s->blk), &s->acct);
694 if (n > s->req_nb_sectors) {
695 n = s->req_nb_sectors;
698 ide_set_sector(s, ide_get_sector(s) + n);
700 /* Allow the guest to read the io_buffer */
701 ide_transfer_start(s, s->io_buffer, n * BDRV_SECTOR_SIZE, ide_sector_read);
705 static void ide_sector_read(IDEState *s)
710 s->status = READY_STAT | SEEK_STAT;
711 s->error = 0; /* not needed by IDE spec, but needed by Windows */
712 sector_num = ide_get_sector(s);
716 ide_transfer_stop(s);
720 s->status |= BUSY_STAT;
722 if (n > s->req_nb_sectors) {
723 n = s->req_nb_sectors;
726 #if defined(DEBUG_IDE)
727 printf("sector=%" PRId64 "\n", sector_num);
730 if (!ide_sect_range_ok(s, sector_num, n)) {
732 block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_READ);
736 s->iov.iov_base = s->io_buffer;
737 s->iov.iov_len = n * BDRV_SECTOR_SIZE;
738 qemu_iovec_init_external(&s->qiov, &s->iov, 1);
740 block_acct_start(blk_get_stats(s->blk), &s->acct,
741 n * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
742 s->pio_aiocb = ide_buffered_readv(s, sector_num, &s->qiov, n,
743 ide_sector_read_cb, s);
746 void dma_buf_commit(IDEState *s, uint32_t tx_bytes)
748 if (s->bus->dma->ops->commit_buf) {
749 s->bus->dma->ops->commit_buf(s->bus->dma, tx_bytes);
751 s->io_buffer_offset += tx_bytes;
752 qemu_sglist_destroy(&s->sg);
755 void ide_set_inactive(IDEState *s, bool more)
757 s->bus->dma->aiocb = NULL;
758 s->bus->retry_unit = -1;
759 s->bus->retry_sector_num = 0;
760 s->bus->retry_nsector = 0;
761 if (s->bus->dma->ops->set_inactive) {
762 s->bus->dma->ops->set_inactive(s->bus->dma, more);
767 void ide_dma_error(IDEState *s)
769 dma_buf_commit(s, 0);
770 ide_abort_command(s);
771 ide_set_inactive(s, false);
775 static int ide_handle_rw_error(IDEState *s, int error, int op)
777 bool is_read = (op & IDE_RETRY_READ) != 0;
778 BlockErrorAction action = blk_get_error_action(s->blk, is_read, error);
780 if (action == BLOCK_ERROR_ACTION_STOP) {
781 assert(s->bus->retry_unit == s->unit);
782 s->bus->error_status = op;
783 } else if (action == BLOCK_ERROR_ACTION_REPORT) {
784 block_acct_failed(blk_get_stats(s->blk), &s->acct);
785 if (op & IDE_RETRY_DMA) {
791 blk_error_action(s->blk, action, is_read, error);
792 return action != BLOCK_ERROR_ACTION_IGNORE;
795 static void ide_dma_cb(void *opaque, int ret)
797 IDEState *s = opaque;
800 bool stay_active = false;
802 if (ret == -ECANCELED) {
806 int op = IDE_RETRY_DMA;
808 if (s->dma_cmd == IDE_DMA_READ)
809 op |= IDE_RETRY_READ;
810 else if (s->dma_cmd == IDE_DMA_TRIM)
811 op |= IDE_RETRY_TRIM;
813 if (ide_handle_rw_error(s, -ret, op)) {
818 n = s->io_buffer_size >> 9;
819 if (n > s->nsector) {
820 /* The PRDs were longer than needed for this request. Shorten them so
821 * we don't get a negative remainder. The Active bit must remain set
822 * after the request completes. */
827 sector_num = ide_get_sector(s);
829 assert(n * 512 == s->sg.size);
830 dma_buf_commit(s, s->sg.size);
832 ide_set_sector(s, sector_num);
836 /* end of transfer ? */
837 if (s->nsector == 0) {
838 s->status = READY_STAT | SEEK_STAT;
843 /* launch next transfer */
845 s->io_buffer_index = 0;
846 s->io_buffer_size = n * 512;
847 if (s->bus->dma->ops->prepare_buf(s->bus->dma, s->io_buffer_size) < 512) {
848 /* The PRDs were too short. Reset the Active bit, but don't raise an
850 s->status = READY_STAT | SEEK_STAT;
851 dma_buf_commit(s, 0);
856 printf("ide_dma_cb: sector_num=%" PRId64 " n=%d, cmd_cmd=%d\n",
857 sector_num, n, s->dma_cmd);
860 if ((s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) &&
861 !ide_sect_range_ok(s, sector_num, n)) {
863 block_acct_invalid(blk_get_stats(s->blk), s->acct.type);
867 switch (s->dma_cmd) {
869 s->bus->dma->aiocb = dma_blk_read(s->blk, &s->sg, sector_num,
873 s->bus->dma->aiocb = dma_blk_write(s->blk, &s->sg, sector_num,
877 s->bus->dma->aiocb = dma_blk_io(s->blk, &s->sg, sector_num,
878 ide_issue_trim, ide_dma_cb, s,
879 DMA_DIRECTION_TO_DEVICE);
885 if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) {
886 block_acct_done(blk_get_stats(s->blk), &s->acct);
888 ide_set_inactive(s, stay_active);
891 static void ide_sector_start_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
893 s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT;
894 s->io_buffer_size = 0;
895 s->dma_cmd = dma_cmd;
899 block_acct_start(blk_get_stats(s->blk), &s->acct,
900 s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
903 block_acct_start(blk_get_stats(s->blk), &s->acct,
904 s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
910 ide_start_dma(s, ide_dma_cb);
913 void ide_start_dma(IDEState *s, BlockCompletionFunc *cb)
915 s->io_buffer_index = 0;
916 s->bus->retry_unit = s->unit;
917 s->bus->retry_sector_num = ide_get_sector(s);
918 s->bus->retry_nsector = s->nsector;
919 if (s->bus->dma->ops->start_dma) {
920 s->bus->dma->ops->start_dma(s->bus->dma, s, cb);
924 static void ide_sector_write(IDEState *s);
926 static void ide_sector_write_timer_cb(void *opaque)
928 IDEState *s = opaque;
932 static void ide_sector_write_cb(void *opaque, int ret)
934 IDEState *s = opaque;
937 if (ret == -ECANCELED) {
942 s->status &= ~BUSY_STAT;
945 if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO)) {
950 block_acct_done(blk_get_stats(s->blk), &s->acct);
953 if (n > s->req_nb_sectors) {
954 n = s->req_nb_sectors;
958 ide_set_sector(s, ide_get_sector(s) + n);
959 if (s->nsector == 0) {
960 /* no more sectors to write */
961 ide_transfer_stop(s);
964 if (n1 > s->req_nb_sectors) {
965 n1 = s->req_nb_sectors;
967 ide_transfer_start(s, s->io_buffer, n1 * BDRV_SECTOR_SIZE,
971 if (win2k_install_hack && ((++s->irq_count % 16) == 0)) {
972 /* It seems there is a bug in the Windows 2000 installer HDD
973 IDE driver which fills the disk with empty logs when the
974 IDE write IRQ comes too early. This hack tries to correct
975 that at the expense of slower write performances. Use this
976 option _only_ to install Windows 2000. You must disable it
978 timer_mod(s->sector_write_timer,
979 qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + (get_ticks_per_sec() / 1000));
985 static void ide_sector_write(IDEState *s)
990 s->status = READY_STAT | SEEK_STAT | BUSY_STAT;
991 sector_num = ide_get_sector(s);
992 #if defined(DEBUG_IDE)
993 printf("sector=%" PRId64 "\n", sector_num);
996 if (n > s->req_nb_sectors) {
997 n = s->req_nb_sectors;
1000 if (!ide_sect_range_ok(s, sector_num, n)) {
1002 block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_WRITE);
1006 s->iov.iov_base = s->io_buffer;
1007 s->iov.iov_len = n * BDRV_SECTOR_SIZE;
1008 qemu_iovec_init_external(&s->qiov, &s->iov, 1);
1010 block_acct_start(blk_get_stats(s->blk), &s->acct,
1011 n * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
1012 s->pio_aiocb = blk_aio_writev(s->blk, sector_num, &s->qiov, n,
1013 ide_sector_write_cb, s);
1016 static void ide_flush_cb(void *opaque, int ret)
1018 IDEState *s = opaque;
1020 s->pio_aiocb = NULL;
1022 if (ret == -ECANCELED) {
1026 /* XXX: What sector number to set here? */
1027 if (ide_handle_rw_error(s, -ret, IDE_RETRY_FLUSH)) {
1033 block_acct_done(blk_get_stats(s->blk), &s->acct);
1035 s->status = READY_STAT | SEEK_STAT;
1037 ide_set_irq(s->bus);
1040 static void ide_flush_cache(IDEState *s)
1042 if (s->blk == NULL) {
1047 s->status |= BUSY_STAT;
1048 block_acct_start(blk_get_stats(s->blk), &s->acct, 0, BLOCK_ACCT_FLUSH);
1049 s->pio_aiocb = blk_aio_flush(s->blk, ide_flush_cb, s);
1052 static void ide_cfata_metadata_inquiry(IDEState *s)
1057 p = (uint16_t *) s->io_buffer;
1058 memset(p, 0, 0x200);
1059 spd = ((s->mdata_size - 1) >> 9) + 1;
1061 put_le16(p + 0, 0x0001); /* Data format revision */
1062 put_le16(p + 1, 0x0000); /* Media property: silicon */
1063 put_le16(p + 2, s->media_changed); /* Media status */
1064 put_le16(p + 3, s->mdata_size & 0xffff); /* Capacity in bytes (low) */
1065 put_le16(p + 4, s->mdata_size >> 16); /* Capacity in bytes (high) */
1066 put_le16(p + 5, spd & 0xffff); /* Sectors per device (low) */
1067 put_le16(p + 6, spd >> 16); /* Sectors per device (high) */
1070 static void ide_cfata_metadata_read(IDEState *s)
1074 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
1075 s->status = ERR_STAT;
1076 s->error = ABRT_ERR;
1080 p = (uint16_t *) s->io_buffer;
1081 memset(p, 0, 0x200);
1083 put_le16(p + 0, s->media_changed); /* Media status */
1084 memcpy(p + 1, s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
1085 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
1086 s->nsector << 9), 0x200 - 2));
1089 static void ide_cfata_metadata_write(IDEState *s)
1091 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
1092 s->status = ERR_STAT;
1093 s->error = ABRT_ERR;
1097 s->media_changed = 0;
1099 memcpy(s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
1101 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
1102 s->nsector << 9), 0x200 - 2));
1105 /* called when the inserted state of the media has changed */
1106 static void ide_cd_change_cb(void *opaque, bool load)
1108 IDEState *s = opaque;
1109 uint64_t nb_sectors;
1111 s->tray_open = !load;
1112 blk_get_geometry(s->blk, &nb_sectors);
1113 s->nb_sectors = nb_sectors;
1116 * First indicate to the guest that a CD has been removed. That's
1117 * done on the next command the guest sends us.
1119 * Then we set UNIT_ATTENTION, by which the guest will
1120 * detect a new CD in the drive. See ide_atapi_cmd() for details.
1122 s->cdrom_changed = 1;
1123 s->events.new_media = true;
1124 s->events.eject_request = false;
1125 ide_set_irq(s->bus);
1128 static void ide_cd_eject_request_cb(void *opaque, bool force)
1130 IDEState *s = opaque;
1132 s->events.eject_request = true;
1134 s->tray_locked = false;
1136 ide_set_irq(s->bus);
1139 static void ide_cmd_lba48_transform(IDEState *s, int lba48)
1143 /* handle the 'magic' 0 nsector count conversion here. to avoid
1144 * fiddling with the rest of the read logic, we just store the
1145 * full sector count in ->nsector and ignore ->hob_nsector from now
1151 if (!s->nsector && !s->hob_nsector)
1154 int lo = s->nsector;
1155 int hi = s->hob_nsector;
1157 s->nsector = (hi << 8) | lo;
1162 static void ide_clear_hob(IDEBus *bus)
1164 /* any write clears HOB high bit of device control register */
1165 bus->ifs[0].select &= ~(1 << 7);
1166 bus->ifs[1].select &= ~(1 << 7);
1169 void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
1171 IDEBus *bus = opaque;
1174 printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
1179 /* ignore writes to command block while busy with previous command */
1180 if (addr != 7 && (idebus_active_if(bus)->status & (BUSY_STAT|DRQ_STAT)))
1188 /* NOTE: data is written to the two drives */
1189 bus->ifs[0].hob_feature = bus->ifs[0].feature;
1190 bus->ifs[1].hob_feature = bus->ifs[1].feature;
1191 bus->ifs[0].feature = val;
1192 bus->ifs[1].feature = val;
1196 bus->ifs[0].hob_nsector = bus->ifs[0].nsector;
1197 bus->ifs[1].hob_nsector = bus->ifs[1].nsector;
1198 bus->ifs[0].nsector = val;
1199 bus->ifs[1].nsector = val;
1203 bus->ifs[0].hob_sector = bus->ifs[0].sector;
1204 bus->ifs[1].hob_sector = bus->ifs[1].sector;
1205 bus->ifs[0].sector = val;
1206 bus->ifs[1].sector = val;
1210 bus->ifs[0].hob_lcyl = bus->ifs[0].lcyl;
1211 bus->ifs[1].hob_lcyl = bus->ifs[1].lcyl;
1212 bus->ifs[0].lcyl = val;
1213 bus->ifs[1].lcyl = val;
1217 bus->ifs[0].hob_hcyl = bus->ifs[0].hcyl;
1218 bus->ifs[1].hob_hcyl = bus->ifs[1].hcyl;
1219 bus->ifs[0].hcyl = val;
1220 bus->ifs[1].hcyl = val;
1223 /* FIXME: HOB readback uses bit 7 */
1224 bus->ifs[0].select = (val & ~0x10) | 0xa0;
1225 bus->ifs[1].select = (val | 0x10) | 0xa0;
1227 bus->unit = (val >> 4) & 1;
1232 ide_exec_cmd(bus, val);
1237 static void ide_reset(IDEState *s)
1240 printf("ide: reset\n");
1244 blk_aio_cancel(s->pio_aiocb);
1245 s->pio_aiocb = NULL;
1248 if (s->drive_kind == IDE_CFATA)
1249 s->mult_sectors = 0;
1251 s->mult_sectors = MAX_MULT_SECTORS;
1268 s->status = READY_STAT | SEEK_STAT;
1272 /* ATAPI specific */
1275 s->cdrom_changed = 0;
1276 s->packet_transfer_size = 0;
1277 s->elementary_transfer_size = 0;
1278 s->io_buffer_index = 0;
1279 s->cd_sector_size = 0;
1284 s->io_buffer_size = 0;
1285 s->req_nb_sectors = 0;
1287 ide_set_signature(s);
1288 /* init the transfer handler so that 0xffff is returned on data
1290 s->end_transfer_func = ide_dummy_transfer_stop;
1291 ide_dummy_transfer_stop(s);
1292 s->media_changed = 0;
1295 static bool cmd_nop(IDEState *s, uint8_t cmd)
1300 static bool cmd_device_reset(IDEState *s, uint8_t cmd)
1302 /* Halt PIO (in the DRQ phase), then DMA */
1303 ide_transfer_cancel(s);
1304 ide_cancel_dma_sync(s);
1306 /* Reset any PIO commands, reset signature, etc */
1309 /* RESET: ATA8-ACS3 7.10.4 "Normal Outputs";
1310 * ATA8-ACS3 Table 184 "Device Signatures for Normal Output" */
1313 /* Do not overwrite status register */
1317 static bool cmd_data_set_management(IDEState *s, uint8_t cmd)
1319 switch (s->feature) {
1322 ide_sector_start_dma(s, IDE_DMA_TRIM);
1328 ide_abort_command(s);
1332 static bool cmd_identify(IDEState *s, uint8_t cmd)
1334 if (s->blk && s->drive_kind != IDE_CD) {
1335 if (s->drive_kind != IDE_CFATA) {
1338 ide_cfata_identify(s);
1340 s->status = READY_STAT | SEEK_STAT;
1341 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1342 ide_set_irq(s->bus);
1345 if (s->drive_kind == IDE_CD) {
1346 ide_set_signature(s);
1348 ide_abort_command(s);
1354 static bool cmd_verify(IDEState *s, uint8_t cmd)
1356 bool lba48 = (cmd == WIN_VERIFY_EXT);
1358 /* do sector number check ? */
1359 ide_cmd_lba48_transform(s, lba48);
1364 static bool cmd_set_multiple_mode(IDEState *s, uint8_t cmd)
1366 if (s->drive_kind == IDE_CFATA && s->nsector == 0) {
1367 /* Disable Read and Write Multiple */
1368 s->mult_sectors = 0;
1369 } else if ((s->nsector & 0xff) != 0 &&
1370 ((s->nsector & 0xff) > MAX_MULT_SECTORS ||
1371 (s->nsector & (s->nsector - 1)) != 0)) {
1372 ide_abort_command(s);
1374 s->mult_sectors = s->nsector & 0xff;
1380 static bool cmd_read_multiple(IDEState *s, uint8_t cmd)
1382 bool lba48 = (cmd == WIN_MULTREAD_EXT);
1384 if (!s->blk || !s->mult_sectors) {
1385 ide_abort_command(s);
1389 ide_cmd_lba48_transform(s, lba48);
1390 s->req_nb_sectors = s->mult_sectors;
1395 static bool cmd_write_multiple(IDEState *s, uint8_t cmd)
1397 bool lba48 = (cmd == WIN_MULTWRITE_EXT);
1400 if (!s->blk || !s->mult_sectors) {
1401 ide_abort_command(s);
1405 ide_cmd_lba48_transform(s, lba48);
1407 s->req_nb_sectors = s->mult_sectors;
1408 n = MIN(s->nsector, s->req_nb_sectors);
1410 s->status = SEEK_STAT | READY_STAT;
1411 ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
1413 s->media_changed = 1;
1418 static bool cmd_read_pio(IDEState *s, uint8_t cmd)
1420 bool lba48 = (cmd == WIN_READ_EXT);
1422 if (s->drive_kind == IDE_CD) {
1423 ide_set_signature(s); /* odd, but ATA4 8.27.5.2 requires it */
1424 ide_abort_command(s);
1429 ide_abort_command(s);
1433 ide_cmd_lba48_transform(s, lba48);
1434 s->req_nb_sectors = 1;
1440 static bool cmd_write_pio(IDEState *s, uint8_t cmd)
1442 bool lba48 = (cmd == WIN_WRITE_EXT);
1445 ide_abort_command(s);
1449 ide_cmd_lba48_transform(s, lba48);
1451 s->req_nb_sectors = 1;
1452 s->status = SEEK_STAT | READY_STAT;
1453 ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
1455 s->media_changed = 1;
1460 static bool cmd_read_dma(IDEState *s, uint8_t cmd)
1462 bool lba48 = (cmd == WIN_READDMA_EXT);
1465 ide_abort_command(s);
1469 ide_cmd_lba48_transform(s, lba48);
1470 ide_sector_start_dma(s, IDE_DMA_READ);
1475 static bool cmd_write_dma(IDEState *s, uint8_t cmd)
1477 bool lba48 = (cmd == WIN_WRITEDMA_EXT);
1480 ide_abort_command(s);
1484 ide_cmd_lba48_transform(s, lba48);
1485 ide_sector_start_dma(s, IDE_DMA_WRITE);
1487 s->media_changed = 1;
1492 static bool cmd_flush_cache(IDEState *s, uint8_t cmd)
1498 static bool cmd_seek(IDEState *s, uint8_t cmd)
1500 /* XXX: Check that seek is within bounds */
1504 static bool cmd_read_native_max(IDEState *s, uint8_t cmd)
1506 bool lba48 = (cmd == WIN_READ_NATIVE_MAX_EXT);
1508 /* Refuse if no sectors are addressable (e.g. medium not inserted) */
1509 if (s->nb_sectors == 0) {
1510 ide_abort_command(s);
1514 ide_cmd_lba48_transform(s, lba48);
1515 ide_set_sector(s, s->nb_sectors - 1);
1520 static bool cmd_check_power_mode(IDEState *s, uint8_t cmd)
1522 s->nsector = 0xff; /* device active or idle */
1526 static bool cmd_set_features(IDEState *s, uint8_t cmd)
1528 uint16_t *identify_data;
1531 ide_abort_command(s);
1535 /* XXX: valid for CDROM ? */
1536 switch (s->feature) {
1537 case 0x02: /* write cache enable */
1538 blk_set_enable_write_cache(s->blk, true);
1539 identify_data = (uint16_t *)s->identify_data;
1540 put_le16(identify_data + 85, (1 << 14) | (1 << 5) | 1);
1542 case 0x82: /* write cache disable */
1543 blk_set_enable_write_cache(s->blk, false);
1544 identify_data = (uint16_t *)s->identify_data;
1545 put_le16(identify_data + 85, (1 << 14) | 1);
1548 case 0xcc: /* reverting to power-on defaults enable */
1549 case 0x66: /* reverting to power-on defaults disable */
1550 case 0xaa: /* read look-ahead enable */
1551 case 0x55: /* read look-ahead disable */
1552 case 0x05: /* set advanced power management mode */
1553 case 0x85: /* disable advanced power management mode */
1554 case 0x69: /* NOP */
1555 case 0x67: /* NOP */
1556 case 0x96: /* NOP */
1557 case 0x9a: /* NOP */
1558 case 0x42: /* enable Automatic Acoustic Mode */
1559 case 0xc2: /* disable Automatic Acoustic Mode */
1561 case 0x03: /* set transfer mode */
1563 uint8_t val = s->nsector & 0x07;
1564 identify_data = (uint16_t *)s->identify_data;
1566 switch (s->nsector >> 3) {
1567 case 0x00: /* pio default */
1568 case 0x01: /* pio mode */
1569 put_le16(identify_data + 62, 0x07);
1570 put_le16(identify_data + 63, 0x07);
1571 put_le16(identify_data + 88, 0x3f);
1573 case 0x02: /* sigle word dma mode*/
1574 put_le16(identify_data + 62, 0x07 | (1 << (val + 8)));
1575 put_le16(identify_data + 63, 0x07);
1576 put_le16(identify_data + 88, 0x3f);
1578 case 0x04: /* mdma mode */
1579 put_le16(identify_data + 62, 0x07);
1580 put_le16(identify_data + 63, 0x07 | (1 << (val + 8)));
1581 put_le16(identify_data + 88, 0x3f);
1583 case 0x08: /* udma mode */
1584 put_le16(identify_data + 62, 0x07);
1585 put_le16(identify_data + 63, 0x07);
1586 put_le16(identify_data + 88, 0x3f | (1 << (val + 8)));
1596 ide_abort_command(s);
1601 /*** ATAPI commands ***/
1603 static bool cmd_identify_packet(IDEState *s, uint8_t cmd)
1605 ide_atapi_identify(s);
1606 s->status = READY_STAT | SEEK_STAT;
1607 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1608 ide_set_irq(s->bus);
1612 static bool cmd_exec_dev_diagnostic(IDEState *s, uint8_t cmd)
1614 ide_set_signature(s);
1616 if (s->drive_kind == IDE_CD) {
1617 s->status = 0; /* ATAPI spec (v6) section 9.10 defines packet
1618 * devices to return a clear status register
1619 * with READY_STAT *not* set. */
1622 s->status = READY_STAT | SEEK_STAT;
1623 /* The bits of the error register are not as usual for this command!
1624 * They are part of the regular output (this is why ERR_STAT isn't set)
1625 * Device 0 passed, Device 1 passed or not present. */
1627 ide_set_irq(s->bus);
1633 static bool cmd_packet(IDEState *s, uint8_t cmd)
1635 /* overlapping commands not supported */
1636 if (s->feature & 0x02) {
1637 ide_abort_command(s);
1641 s->status = READY_STAT | SEEK_STAT;
1642 s->atapi_dma = s->feature & 1;
1644 ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
1650 /*** CF-ATA commands ***/
1652 static bool cmd_cfa_req_ext_error_code(IDEState *s, uint8_t cmd)
1654 s->error = 0x09; /* miscellaneous error */
1655 s->status = READY_STAT | SEEK_STAT;
1656 ide_set_irq(s->bus);
1661 static bool cmd_cfa_erase_sectors(IDEState *s, uint8_t cmd)
1663 /* WIN_SECURITY_FREEZE_LOCK has the same ID as CFA_WEAR_LEVEL and is
1664 * required for Windows 8 to work with AHCI */
1666 if (cmd == CFA_WEAR_LEVEL) {
1670 if (cmd == CFA_ERASE_SECTORS) {
1671 s->media_changed = 1;
1677 static bool cmd_cfa_translate_sector(IDEState *s, uint8_t cmd)
1679 s->status = READY_STAT | SEEK_STAT;
1681 memset(s->io_buffer, 0, 0x200);
1682 s->io_buffer[0x00] = s->hcyl; /* Cyl MSB */
1683 s->io_buffer[0x01] = s->lcyl; /* Cyl LSB */
1684 s->io_buffer[0x02] = s->select; /* Head */
1685 s->io_buffer[0x03] = s->sector; /* Sector */
1686 s->io_buffer[0x04] = ide_get_sector(s) >> 16; /* LBA MSB */
1687 s->io_buffer[0x05] = ide_get_sector(s) >> 8; /* LBA */
1688 s->io_buffer[0x06] = ide_get_sector(s) >> 0; /* LBA LSB */
1689 s->io_buffer[0x13] = 0x00; /* Erase flag */
1690 s->io_buffer[0x18] = 0x00; /* Hot count */
1691 s->io_buffer[0x19] = 0x00; /* Hot count */
1692 s->io_buffer[0x1a] = 0x01; /* Hot count */
1694 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1695 ide_set_irq(s->bus);
1700 static bool cmd_cfa_access_metadata_storage(IDEState *s, uint8_t cmd)
1702 switch (s->feature) {
1703 case 0x02: /* Inquiry Metadata Storage */
1704 ide_cfata_metadata_inquiry(s);
1706 case 0x03: /* Read Metadata Storage */
1707 ide_cfata_metadata_read(s);
1709 case 0x04: /* Write Metadata Storage */
1710 ide_cfata_metadata_write(s);
1713 ide_abort_command(s);
1717 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1718 s->status = 0x00; /* NOTE: READY is _not_ set */
1719 ide_set_irq(s->bus);
1724 static bool cmd_ibm_sense_condition(IDEState *s, uint8_t cmd)
1726 switch (s->feature) {
1727 case 0x01: /* sense temperature in device */
1728 s->nsector = 0x50; /* +20 C */
1731 ide_abort_command(s);
1739 /*** SMART commands ***/
1741 static bool cmd_smart(IDEState *s, uint8_t cmd)
1745 if (s->hcyl != 0xc2 || s->lcyl != 0x4f) {
1749 if (!s->smart_enabled && s->feature != SMART_ENABLE) {
1753 switch (s->feature) {
1755 s->smart_enabled = 0;
1759 s->smart_enabled = 1;
1762 case SMART_ATTR_AUTOSAVE:
1763 switch (s->sector) {
1765 s->smart_autosave = 0;
1768 s->smart_autosave = 1;
1776 if (!s->smart_errors) {
1785 case SMART_READ_THRESH:
1786 memset(s->io_buffer, 0, 0x200);
1787 s->io_buffer[0] = 0x01; /* smart struct version */
1789 for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
1790 s->io_buffer[2 + 0 + (n * 12)] = smart_attributes[n][0];
1791 s->io_buffer[2 + 1 + (n * 12)] = smart_attributes[n][11];
1795 for (n = 0; n < 511; n++) {
1796 s->io_buffer[511] += s->io_buffer[n];
1798 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1800 s->status = READY_STAT | SEEK_STAT;
1801 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1802 ide_set_irq(s->bus);
1805 case SMART_READ_DATA:
1806 memset(s->io_buffer, 0, 0x200);
1807 s->io_buffer[0] = 0x01; /* smart struct version */
1809 for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
1811 for (i = 0; i < 11; i++) {
1812 s->io_buffer[2 + i + (n * 12)] = smart_attributes[n][i];
1816 s->io_buffer[362] = 0x02 | (s->smart_autosave ? 0x80 : 0x00);
1817 if (s->smart_selftest_count == 0) {
1818 s->io_buffer[363] = 0;
1821 s->smart_selftest_data[3 +
1822 (s->smart_selftest_count - 1) *
1825 s->io_buffer[364] = 0x20;
1826 s->io_buffer[365] = 0x01;
1827 /* offline data collection capacity: execute + self-test*/
1828 s->io_buffer[367] = (1 << 4 | 1 << 3 | 1);
1829 s->io_buffer[368] = 0x03; /* smart capability (1) */
1830 s->io_buffer[369] = 0x00; /* smart capability (2) */
1831 s->io_buffer[370] = 0x01; /* error logging supported */
1832 s->io_buffer[372] = 0x02; /* minutes for poll short test */
1833 s->io_buffer[373] = 0x36; /* minutes for poll ext test */
1834 s->io_buffer[374] = 0x01; /* minutes for poll conveyance */
1836 for (n = 0; n < 511; n++) {
1837 s->io_buffer[511] += s->io_buffer[n];
1839 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1841 s->status = READY_STAT | SEEK_STAT;
1842 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1843 ide_set_irq(s->bus);
1846 case SMART_READ_LOG:
1847 switch (s->sector) {
1848 case 0x01: /* summary smart error log */
1849 memset(s->io_buffer, 0, 0x200);
1850 s->io_buffer[0] = 0x01;
1851 s->io_buffer[1] = 0x00; /* no error entries */
1852 s->io_buffer[452] = s->smart_errors & 0xff;
1853 s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8;
1855 for (n = 0; n < 511; n++) {
1856 s->io_buffer[511] += s->io_buffer[n];
1858 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1860 case 0x06: /* smart self test log */
1861 memset(s->io_buffer, 0, 0x200);
1862 s->io_buffer[0] = 0x01;
1863 if (s->smart_selftest_count == 0) {
1864 s->io_buffer[508] = 0;
1866 s->io_buffer[508] = s->smart_selftest_count;
1867 for (n = 2; n < 506; n++) {
1868 s->io_buffer[n] = s->smart_selftest_data[n];
1872 for (n = 0; n < 511; n++) {
1873 s->io_buffer[511] += s->io_buffer[n];
1875 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1880 s->status = READY_STAT | SEEK_STAT;
1881 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1882 ide_set_irq(s->bus);
1885 case SMART_EXECUTE_OFFLINE:
1886 switch (s->sector) {
1887 case 0: /* off-line routine */
1888 case 1: /* short self test */
1889 case 2: /* extended self test */
1890 s->smart_selftest_count++;
1891 if (s->smart_selftest_count > 21) {
1892 s->smart_selftest_count = 1;
1894 n = 2 + (s->smart_selftest_count - 1) * 24;
1895 s->smart_selftest_data[n] = s->sector;
1896 s->smart_selftest_data[n + 1] = 0x00; /* OK and finished */
1897 s->smart_selftest_data[n + 2] = 0x34; /* hour count lsb */
1898 s->smart_selftest_data[n + 3] = 0x12; /* hour count msb */
1907 ide_abort_command(s);
1911 #define HD_OK (1u << IDE_HD)
1912 #define CD_OK (1u << IDE_CD)
1913 #define CFA_OK (1u << IDE_CFATA)
1914 #define HD_CFA_OK (HD_OK | CFA_OK)
1915 #define ALL_OK (HD_OK | CD_OK | CFA_OK)
1917 /* Set the Disk Seek Completed status bit during completion */
1918 #define SET_DSC (1u << 8)
1920 /* See ACS-2 T13/2015-D Table B.2 Command codes */
1921 static const struct {
1922 /* Returns true if the completion code should be run */
1923 bool (*handler)(IDEState *s, uint8_t cmd);
1925 } ide_cmd_table[0x100] = {
1926 /* NOP not implemented, mandatory for CD */
1927 [CFA_REQ_EXT_ERROR_CODE] = { cmd_cfa_req_ext_error_code, CFA_OK },
1928 [WIN_DSM] = { cmd_data_set_management, HD_CFA_OK },
1929 [WIN_DEVICE_RESET] = { cmd_device_reset, CD_OK },
1930 [WIN_RECAL] = { cmd_nop, HD_CFA_OK | SET_DSC},
1931 [WIN_READ] = { cmd_read_pio, ALL_OK },
1932 [WIN_READ_ONCE] = { cmd_read_pio, HD_CFA_OK },
1933 [WIN_READ_EXT] = { cmd_read_pio, HD_CFA_OK },
1934 [WIN_READDMA_EXT] = { cmd_read_dma, HD_CFA_OK },
1935 [WIN_READ_NATIVE_MAX_EXT] = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
1936 [WIN_MULTREAD_EXT] = { cmd_read_multiple, HD_CFA_OK },
1937 [WIN_WRITE] = { cmd_write_pio, HD_CFA_OK },
1938 [WIN_WRITE_ONCE] = { cmd_write_pio, HD_CFA_OK },
1939 [WIN_WRITE_EXT] = { cmd_write_pio, HD_CFA_OK },
1940 [WIN_WRITEDMA_EXT] = { cmd_write_dma, HD_CFA_OK },
1941 [CFA_WRITE_SECT_WO_ERASE] = { cmd_write_pio, CFA_OK },
1942 [WIN_MULTWRITE_EXT] = { cmd_write_multiple, HD_CFA_OK },
1943 [WIN_WRITE_VERIFY] = { cmd_write_pio, HD_CFA_OK },
1944 [WIN_VERIFY] = { cmd_verify, HD_CFA_OK | SET_DSC },
1945 [WIN_VERIFY_ONCE] = { cmd_verify, HD_CFA_OK | SET_DSC },
1946 [WIN_VERIFY_EXT] = { cmd_verify, HD_CFA_OK | SET_DSC },
1947 [WIN_SEEK] = { cmd_seek, HD_CFA_OK | SET_DSC },
1948 [CFA_TRANSLATE_SECTOR] = { cmd_cfa_translate_sector, CFA_OK },
1949 [WIN_DIAGNOSE] = { cmd_exec_dev_diagnostic, ALL_OK },
1950 [WIN_SPECIFY] = { cmd_nop, HD_CFA_OK | SET_DSC },
1951 [WIN_STANDBYNOW2] = { cmd_nop, HD_CFA_OK },
1952 [WIN_IDLEIMMEDIATE2] = { cmd_nop, HD_CFA_OK },
1953 [WIN_STANDBY2] = { cmd_nop, HD_CFA_OK },
1954 [WIN_SETIDLE2] = { cmd_nop, HD_CFA_OK },
1955 [WIN_CHECKPOWERMODE2] = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
1956 [WIN_SLEEPNOW2] = { cmd_nop, HD_CFA_OK },
1957 [WIN_PACKETCMD] = { cmd_packet, CD_OK },
1958 [WIN_PIDENTIFY] = { cmd_identify_packet, CD_OK },
1959 [WIN_SMART] = { cmd_smart, HD_CFA_OK | SET_DSC },
1960 [CFA_ACCESS_METADATA_STORAGE] = { cmd_cfa_access_metadata_storage, CFA_OK },
1961 [CFA_ERASE_SECTORS] = { cmd_cfa_erase_sectors, CFA_OK | SET_DSC },
1962 [WIN_MULTREAD] = { cmd_read_multiple, HD_CFA_OK },
1963 [WIN_MULTWRITE] = { cmd_write_multiple, HD_CFA_OK },
1964 [WIN_SETMULT] = { cmd_set_multiple_mode, HD_CFA_OK | SET_DSC },
1965 [WIN_READDMA] = { cmd_read_dma, HD_CFA_OK },
1966 [WIN_READDMA_ONCE] = { cmd_read_dma, HD_CFA_OK },
1967 [WIN_WRITEDMA] = { cmd_write_dma, HD_CFA_OK },
1968 [WIN_WRITEDMA_ONCE] = { cmd_write_dma, HD_CFA_OK },
1969 [CFA_WRITE_MULTI_WO_ERASE] = { cmd_write_multiple, CFA_OK },
1970 [WIN_STANDBYNOW1] = { cmd_nop, HD_CFA_OK },
1971 [WIN_IDLEIMMEDIATE] = { cmd_nop, HD_CFA_OK },
1972 [WIN_STANDBY] = { cmd_nop, HD_CFA_OK },
1973 [WIN_SETIDLE1] = { cmd_nop, HD_CFA_OK },
1974 [WIN_CHECKPOWERMODE1] = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
1975 [WIN_SLEEPNOW1] = { cmd_nop, HD_CFA_OK },
1976 [WIN_FLUSH_CACHE] = { cmd_flush_cache, ALL_OK },
1977 [WIN_FLUSH_CACHE_EXT] = { cmd_flush_cache, HD_CFA_OK },
1978 [WIN_IDENTIFY] = { cmd_identify, ALL_OK },
1979 [WIN_SETFEATURES] = { cmd_set_features, ALL_OK | SET_DSC },
1980 [IBM_SENSE_CONDITION] = { cmd_ibm_sense_condition, CFA_OK | SET_DSC },
1981 [CFA_WEAR_LEVEL] = { cmd_cfa_erase_sectors, HD_CFA_OK | SET_DSC },
1982 [WIN_READ_NATIVE_MAX] = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
1985 static bool ide_cmd_permitted(IDEState *s, uint32_t cmd)
1987 return cmd < ARRAY_SIZE(ide_cmd_table)
1988 && (ide_cmd_table[cmd].flags & (1u << s->drive_kind));
1991 void ide_exec_cmd(IDEBus *bus, uint32_t val)
1996 #if defined(DEBUG_IDE)
1997 printf("ide: CMD=%02x\n", val);
1999 s = idebus_active_if(bus);
2000 /* ignore commands to non existent slave */
2001 if (s != bus->ifs && !s->blk) {
2005 /* Only RESET is allowed while BSY and/or DRQ are set,
2006 * and only to ATAPI devices. */
2007 if (s->status & (BUSY_STAT|DRQ_STAT)) {
2008 if (val != WIN_DEVICE_RESET || s->drive_kind != IDE_CD) {
2013 if (!ide_cmd_permitted(s, val)) {
2014 ide_abort_command(s);
2015 ide_set_irq(s->bus);
2019 s->status = READY_STAT | BUSY_STAT;
2021 s->io_buffer_offset = 0;
2023 complete = ide_cmd_table[val].handler(s, val);
2025 s->status &= ~BUSY_STAT;
2026 assert(!!s->error == !!(s->status & ERR_STAT));
2028 if ((ide_cmd_table[val].flags & SET_DSC) && !s->error) {
2029 s->status |= SEEK_STAT;
2033 ide_set_irq(s->bus);
2037 uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
2039 IDEBus *bus = opaque;
2040 IDEState *s = idebus_active_if(bus);
2045 /* FIXME: HOB readback uses bit 7, but it's always set right now */
2046 //hob = s->select & (1 << 7);
2053 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
2054 (s != bus->ifs && !s->blk)) {
2059 ret = s->hob_feature;
2063 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2066 ret = s->nsector & 0xff;
2068 ret = s->hob_nsector;
2072 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2077 ret = s->hob_sector;
2081 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2090 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2099 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2107 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
2108 (s != bus->ifs && !s->blk)) {
2113 qemu_irq_lower(bus->irq);
2117 printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
2122 uint32_t ide_status_read(void *opaque, uint32_t addr)
2124 IDEBus *bus = opaque;
2125 IDEState *s = idebus_active_if(bus);
2128 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
2129 (s != bus->ifs && !s->blk)) {
2135 printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
2140 void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val)
2142 IDEBus *bus = opaque;
2147 printf("ide: write control addr=0x%x val=%02x\n", addr, val);
2149 /* common for both drives */
2150 if (!(bus->cmd & IDE_CMD_RESET) &&
2151 (val & IDE_CMD_RESET)) {
2152 /* reset low to high */
2153 for(i = 0;i < 2; i++) {
2155 s->status = BUSY_STAT | SEEK_STAT;
2158 } else if ((bus->cmd & IDE_CMD_RESET) &&
2159 !(val & IDE_CMD_RESET)) {
2161 for(i = 0;i < 2; i++) {
2163 if (s->drive_kind == IDE_CD)
2164 s->status = 0x00; /* NOTE: READY is _not_ set */
2166 s->status = READY_STAT | SEEK_STAT;
2167 ide_set_signature(s);
2175 * Returns true if the running PIO transfer is a PIO out (i.e. data is
2176 * transferred from the device to the guest), false if it's a PIO in
2178 static bool ide_is_pio_out(IDEState *s)
2180 if (s->end_transfer_func == ide_sector_write ||
2181 s->end_transfer_func == ide_atapi_cmd) {
2183 } else if (s->end_transfer_func == ide_sector_read ||
2184 s->end_transfer_func == ide_transfer_stop ||
2185 s->end_transfer_func == ide_atapi_cmd_reply_end ||
2186 s->end_transfer_func == ide_dummy_transfer_stop) {
2193 void ide_data_writew(void *opaque, uint32_t addr, uint32_t val)
2195 IDEBus *bus = opaque;
2196 IDEState *s = idebus_active_if(bus);
2199 /* PIO data access allowed only when DRQ bit is set. The result of a write
2200 * during PIO out is indeterminate, just ignore it. */
2201 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
2206 if (p + 2 > s->data_end) {
2210 *(uint16_t *)p = le16_to_cpu(val);
2213 if (p >= s->data_end) {
2214 s->status &= ~DRQ_STAT;
2215 s->end_transfer_func(s);
2219 uint32_t ide_data_readw(void *opaque, uint32_t addr)
2221 IDEBus *bus = opaque;
2222 IDEState *s = idebus_active_if(bus);
2226 /* PIO data access allowed only when DRQ bit is set. The result of a read
2227 * during PIO in is indeterminate, return 0 and don't move forward. */
2228 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
2233 if (p + 2 > s->data_end) {
2237 ret = cpu_to_le16(*(uint16_t *)p);
2240 if (p >= s->data_end) {
2241 s->status &= ~DRQ_STAT;
2242 s->end_transfer_func(s);
2247 void ide_data_writel(void *opaque, uint32_t addr, uint32_t val)
2249 IDEBus *bus = opaque;
2250 IDEState *s = idebus_active_if(bus);
2253 /* PIO data access allowed only when DRQ bit is set. The result of a write
2254 * during PIO out is indeterminate, just ignore it. */
2255 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
2260 if (p + 4 > s->data_end) {
2264 *(uint32_t *)p = le32_to_cpu(val);
2267 if (p >= s->data_end) {
2268 s->status &= ~DRQ_STAT;
2269 s->end_transfer_func(s);
2273 uint32_t ide_data_readl(void *opaque, uint32_t addr)
2275 IDEBus *bus = opaque;
2276 IDEState *s = idebus_active_if(bus);
2280 /* PIO data access allowed only when DRQ bit is set. The result of a read
2281 * during PIO in is indeterminate, return 0 and don't move forward. */
2282 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
2287 if (p + 4 > s->data_end) {
2291 ret = cpu_to_le32(*(uint32_t *)p);
2294 if (p >= s->data_end) {
2295 s->status &= ~DRQ_STAT;
2296 s->end_transfer_func(s);
2301 static void ide_dummy_transfer_stop(IDEState *s)
2303 s->data_ptr = s->io_buffer;
2304 s->data_end = s->io_buffer;
2305 s->io_buffer[0] = 0xff;
2306 s->io_buffer[1] = 0xff;
2307 s->io_buffer[2] = 0xff;
2308 s->io_buffer[3] = 0xff;
2311 void ide_bus_reset(IDEBus *bus)
2315 ide_reset(&bus->ifs[0]);
2316 ide_reset(&bus->ifs[1]);
2319 /* pending async DMA */
2320 if (bus->dma->aiocb) {
2322 printf("aio_cancel\n");
2324 blk_aio_cancel(bus->dma->aiocb);
2325 bus->dma->aiocb = NULL;
2328 /* reset dma provider too */
2329 if (bus->dma->ops->reset) {
2330 bus->dma->ops->reset(bus->dma);
2334 static bool ide_cd_is_tray_open(void *opaque)
2336 return ((IDEState *)opaque)->tray_open;
2339 static bool ide_cd_is_medium_locked(void *opaque)
2341 return ((IDEState *)opaque)->tray_locked;
2344 static void ide_resize_cb(void *opaque)
2346 IDEState *s = opaque;
2347 uint64_t nb_sectors;
2349 if (!s->identify_set) {
2353 blk_get_geometry(s->blk, &nb_sectors);
2354 s->nb_sectors = nb_sectors;
2356 /* Update the identify data buffer. */
2357 if (s->drive_kind == IDE_CFATA) {
2358 ide_cfata_identify_size(s);
2360 /* IDE_CD uses a different set of callbacks entirely. */
2361 assert(s->drive_kind != IDE_CD);
2362 ide_identify_size(s);
2366 static const BlockDevOps ide_cd_block_ops = {
2367 .change_media_cb = ide_cd_change_cb,
2368 .eject_request_cb = ide_cd_eject_request_cb,
2369 .is_tray_open = ide_cd_is_tray_open,
2370 .is_medium_locked = ide_cd_is_medium_locked,
2373 static const BlockDevOps ide_hd_block_ops = {
2374 .resize_cb = ide_resize_cb,
2377 int ide_init_drive(IDEState *s, BlockBackend *blk, IDEDriveKind kind,
2378 const char *version, const char *serial, const char *model,
2380 uint32_t cylinders, uint32_t heads, uint32_t secs,
2383 uint64_t nb_sectors;
2386 s->drive_kind = kind;
2388 blk_get_geometry(blk, &nb_sectors);
2389 s->cylinders = cylinders;
2392 s->chs_trans = chs_trans;
2393 s->nb_sectors = nb_sectors;
2395 /* The SMART values should be preserved across power cycles
2397 s->smart_enabled = 1;
2398 s->smart_autosave = 1;
2399 s->smart_errors = 0;
2400 s->smart_selftest_count = 0;
2401 if (kind == IDE_CD) {
2402 blk_set_dev_ops(blk, &ide_cd_block_ops, s);
2403 blk_set_guest_block_size(blk, 2048);
2405 if (!blk_is_inserted(s->blk)) {
2406 error_report("Device needs media, but drive is empty");
2409 if (blk_is_read_only(blk)) {
2410 error_report("Can't use a read-only drive");
2413 blk_set_dev_ops(blk, &ide_hd_block_ops, s);
2416 pstrcpy(s->drive_serial_str, sizeof(s->drive_serial_str), serial);
2418 snprintf(s->drive_serial_str, sizeof(s->drive_serial_str),
2419 "QM%05d", s->drive_serial);
2422 pstrcpy(s->drive_model_str, sizeof(s->drive_model_str), model);
2426 strcpy(s->drive_model_str, "QEMU DVD-ROM");
2429 strcpy(s->drive_model_str, "QEMU MICRODRIVE");
2432 strcpy(s->drive_model_str, "QEMU HARDDISK");
2438 pstrcpy(s->version, sizeof(s->version), version);
2440 pstrcpy(s->version, sizeof(s->version), qemu_hw_version());
2444 blk_iostatus_enable(blk);
2448 static void ide_init1(IDEBus *bus, int unit)
2450 static int drive_serial = 1;
2451 IDEState *s = &bus->ifs[unit];
2455 s->drive_serial = drive_serial++;
2456 /* we need at least 2k alignment for accessing CDROMs using O_DIRECT */
2457 s->io_buffer_total_len = IDE_DMA_BUF_SECTORS*512 + 4;
2458 s->io_buffer = qemu_memalign(2048, s->io_buffer_total_len);
2459 memset(s->io_buffer, 0, s->io_buffer_total_len);
2461 s->smart_selftest_data = blk_blockalign(s->blk, 512);
2462 memset(s->smart_selftest_data, 0, 512);
2464 s->sector_write_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
2465 ide_sector_write_timer_cb, s);
2468 static int ide_nop_int(IDEDMA *dma, int x)
2473 static void ide_nop(IDEDMA *dma)
2477 static int32_t ide_nop_int32(IDEDMA *dma, int32_t l)
2482 static const IDEDMAOps ide_dma_nop_ops = {
2483 .prepare_buf = ide_nop_int32,
2484 .restart_dma = ide_nop,
2485 .rw_buf = ide_nop_int,
2488 static void ide_restart_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
2490 s->unit = s->bus->retry_unit;
2491 ide_set_sector(s, s->bus->retry_sector_num);
2492 s->nsector = s->bus->retry_nsector;
2493 s->bus->dma->ops->restart_dma(s->bus->dma);
2494 s->io_buffer_size = 0;
2495 s->dma_cmd = dma_cmd;
2496 ide_start_dma(s, ide_dma_cb);
2499 static void ide_restart_bh(void *opaque)
2501 IDEBus *bus = opaque;
2506 qemu_bh_delete(bus->bh);
2509 error_status = bus->error_status;
2510 if (bus->error_status == 0) {
2514 s = idebus_active_if(bus);
2515 is_read = (bus->error_status & IDE_RETRY_READ) != 0;
2517 /* The error status must be cleared before resubmitting the request: The
2518 * request may fail again, and this case can only be distinguished if the
2519 * called function can set a new error status. */
2520 bus->error_status = 0;
2522 /* The HBA has generically asked to be kicked on retry */
2523 if (error_status & IDE_RETRY_HBA) {
2524 if (s->bus->dma->ops->restart) {
2525 s->bus->dma->ops->restart(s->bus->dma);
2529 if (error_status & IDE_RETRY_DMA) {
2530 if (error_status & IDE_RETRY_TRIM) {
2531 ide_restart_dma(s, IDE_DMA_TRIM);
2533 ide_restart_dma(s, is_read ? IDE_DMA_READ : IDE_DMA_WRITE);
2535 } else if (error_status & IDE_RETRY_PIO) {
2539 ide_sector_write(s);
2541 } else if (error_status & IDE_RETRY_FLUSH) {
2545 * We've not got any bits to tell us about ATAPI - but
2546 * we do have the end_transfer_func that tells us what
2547 * we're trying to do.
2549 if (s->end_transfer_func == ide_atapi_cmd) {
2550 ide_atapi_dma_restart(s);
2555 static void ide_restart_cb(void *opaque, int running, RunState state)
2557 IDEBus *bus = opaque;
2563 bus->bh = qemu_bh_new(ide_restart_bh, bus);
2564 qemu_bh_schedule(bus->bh);
2568 void ide_register_restart_cb(IDEBus *bus)
2570 if (bus->dma->ops->restart_dma) {
2571 qemu_add_vm_change_state_handler(ide_restart_cb, bus);
2575 static IDEDMA ide_dma_nop = {
2576 .ops = &ide_dma_nop_ops,
2580 void ide_init2(IDEBus *bus, qemu_irq irq)
2584 for(i = 0; i < 2; i++) {
2586 ide_reset(&bus->ifs[i]);
2589 bus->dma = &ide_dma_nop;
2592 static const MemoryRegionPortio ide_portio_list[] = {
2593 { 0, 8, 1, .read = ide_ioport_read, .write = ide_ioport_write },
2594 { 0, 1, 2, .read = ide_data_readw, .write = ide_data_writew },
2595 { 0, 1, 4, .read = ide_data_readl, .write = ide_data_writel },
2596 PORTIO_END_OF_LIST(),
2599 static const MemoryRegionPortio ide_portio2_list[] = {
2600 { 0, 1, 1, .read = ide_status_read, .write = ide_cmd_write },
2601 PORTIO_END_OF_LIST(),
2604 void ide_init_ioport(IDEBus *bus, ISADevice *dev, int iobase, int iobase2)
2606 /* ??? Assume only ISA and PCI configurations, and that the PCI-ISA
2607 bridge has been setup properly to always register with ISA. */
2608 isa_register_portio_list(dev, iobase, ide_portio_list, bus, "ide");
2611 isa_register_portio_list(dev, iobase2, ide_portio2_list, bus, "ide");
2615 static bool is_identify_set(void *opaque, int version_id)
2617 IDEState *s = opaque;
2619 return s->identify_set != 0;
2622 static EndTransferFunc* transfer_end_table[] = {
2626 ide_atapi_cmd_reply_end,
2628 ide_dummy_transfer_stop,
2631 static int transfer_end_table_idx(EndTransferFunc *fn)
2635 for (i = 0; i < ARRAY_SIZE(transfer_end_table); i++)
2636 if (transfer_end_table[i] == fn)
2642 static int ide_drive_post_load(void *opaque, int version_id)
2644 IDEState *s = opaque;
2646 if (s->blk && s->identify_set) {
2647 blk_set_enable_write_cache(s->blk, !!(s->identify_data[85] & (1 << 5)));
2652 static int ide_drive_pio_post_load(void *opaque, int version_id)
2654 IDEState *s = opaque;
2656 if (s->end_transfer_fn_idx >= ARRAY_SIZE(transfer_end_table)) {
2659 s->end_transfer_func = transfer_end_table[s->end_transfer_fn_idx];
2660 s->data_ptr = s->io_buffer + s->cur_io_buffer_offset;
2661 s->data_end = s->data_ptr + s->cur_io_buffer_len;
2662 s->atapi_dma = s->feature & 1; /* as per cmd_packet */
2667 static void ide_drive_pio_pre_save(void *opaque)
2669 IDEState *s = opaque;
2672 s->cur_io_buffer_offset = s->data_ptr - s->io_buffer;
2673 s->cur_io_buffer_len = s->data_end - s->data_ptr;
2675 idx = transfer_end_table_idx(s->end_transfer_func);
2677 fprintf(stderr, "%s: invalid end_transfer_func for DRQ_STAT\n",
2679 s->end_transfer_fn_idx = 2;
2681 s->end_transfer_fn_idx = idx;
2685 static bool ide_drive_pio_state_needed(void *opaque)
2687 IDEState *s = opaque;
2689 return ((s->status & DRQ_STAT) != 0)
2690 || (s->bus->error_status & IDE_RETRY_PIO);
2693 static bool ide_tray_state_needed(void *opaque)
2695 IDEState *s = opaque;
2697 return s->tray_open || s->tray_locked;
2700 static bool ide_atapi_gesn_needed(void *opaque)
2702 IDEState *s = opaque;
2704 return s->events.new_media || s->events.eject_request;
2707 static bool ide_error_needed(void *opaque)
2709 IDEBus *bus = opaque;
2711 return (bus->error_status != 0);
2714 /* Fields for GET_EVENT_STATUS_NOTIFICATION ATAPI command */
2715 static const VMStateDescription vmstate_ide_atapi_gesn_state = {
2716 .name ="ide_drive/atapi/gesn_state",
2718 .minimum_version_id = 1,
2719 .needed = ide_atapi_gesn_needed,
2720 .fields = (VMStateField[]) {
2721 VMSTATE_BOOL(events.new_media, IDEState),
2722 VMSTATE_BOOL(events.eject_request, IDEState),
2723 VMSTATE_END_OF_LIST()
2727 static const VMStateDescription vmstate_ide_tray_state = {
2728 .name = "ide_drive/tray_state",
2730 .minimum_version_id = 1,
2731 .needed = ide_tray_state_needed,
2732 .fields = (VMStateField[]) {
2733 VMSTATE_BOOL(tray_open, IDEState),
2734 VMSTATE_BOOL(tray_locked, IDEState),
2735 VMSTATE_END_OF_LIST()
2739 static const VMStateDescription vmstate_ide_drive_pio_state = {
2740 .name = "ide_drive/pio_state",
2742 .minimum_version_id = 1,
2743 .pre_save = ide_drive_pio_pre_save,
2744 .post_load = ide_drive_pio_post_load,
2745 .needed = ide_drive_pio_state_needed,
2746 .fields = (VMStateField[]) {
2747 VMSTATE_INT32(req_nb_sectors, IDEState),
2748 VMSTATE_VARRAY_INT32(io_buffer, IDEState, io_buffer_total_len, 1,
2749 vmstate_info_uint8, uint8_t),
2750 VMSTATE_INT32(cur_io_buffer_offset, IDEState),
2751 VMSTATE_INT32(cur_io_buffer_len, IDEState),
2752 VMSTATE_UINT8(end_transfer_fn_idx, IDEState),
2753 VMSTATE_INT32(elementary_transfer_size, IDEState),
2754 VMSTATE_INT32(packet_transfer_size, IDEState),
2755 VMSTATE_END_OF_LIST()
2759 const VMStateDescription vmstate_ide_drive = {
2760 .name = "ide_drive",
2762 .minimum_version_id = 0,
2763 .post_load = ide_drive_post_load,
2764 .fields = (VMStateField[]) {
2765 VMSTATE_INT32(mult_sectors, IDEState),
2766 VMSTATE_INT32(identify_set, IDEState),
2767 VMSTATE_BUFFER_TEST(identify_data, IDEState, is_identify_set),
2768 VMSTATE_UINT8(feature, IDEState),
2769 VMSTATE_UINT8(error, IDEState),
2770 VMSTATE_UINT32(nsector, IDEState),
2771 VMSTATE_UINT8(sector, IDEState),
2772 VMSTATE_UINT8(lcyl, IDEState),
2773 VMSTATE_UINT8(hcyl, IDEState),
2774 VMSTATE_UINT8(hob_feature, IDEState),
2775 VMSTATE_UINT8(hob_sector, IDEState),
2776 VMSTATE_UINT8(hob_nsector, IDEState),
2777 VMSTATE_UINT8(hob_lcyl, IDEState),
2778 VMSTATE_UINT8(hob_hcyl, IDEState),
2779 VMSTATE_UINT8(select, IDEState),
2780 VMSTATE_UINT8(status, IDEState),
2781 VMSTATE_UINT8(lba48, IDEState),
2782 VMSTATE_UINT8(sense_key, IDEState),
2783 VMSTATE_UINT8(asc, IDEState),
2784 VMSTATE_UINT8_V(cdrom_changed, IDEState, 3),
2785 VMSTATE_END_OF_LIST()
2787 .subsections = (const VMStateDescription*[]) {
2788 &vmstate_ide_drive_pio_state,
2789 &vmstate_ide_tray_state,
2790 &vmstate_ide_atapi_gesn_state,
2795 static const VMStateDescription vmstate_ide_error_status = {
2796 .name ="ide_bus/error",
2798 .minimum_version_id = 1,
2799 .needed = ide_error_needed,
2800 .fields = (VMStateField[]) {
2801 VMSTATE_INT32(error_status, IDEBus),
2802 VMSTATE_INT64_V(retry_sector_num, IDEBus, 2),
2803 VMSTATE_UINT32_V(retry_nsector, IDEBus, 2),
2804 VMSTATE_UINT8_V(retry_unit, IDEBus, 2),
2805 VMSTATE_END_OF_LIST()
2809 const VMStateDescription vmstate_ide_bus = {
2812 .minimum_version_id = 1,
2813 .fields = (VMStateField[]) {
2814 VMSTATE_UINT8(cmd, IDEBus),
2815 VMSTATE_UINT8(unit, IDEBus),
2816 VMSTATE_END_OF_LIST()
2818 .subsections = (const VMStateDescription*[]) {
2819 &vmstate_ide_error_status,
2824 void ide_drive_get(DriveInfo **hd, int n)
2827 int highest_bus = drive_get_max_bus(IF_IDE) + 1;
2828 int max_devs = drive_get_max_devs(IF_IDE);
2829 int n_buses = max_devs ? (n / max_devs) : n;
2832 * Note: The number of actual buses available is not known.
2833 * We compute this based on the size of the DriveInfo* array, n.
2834 * If it is less than max_devs * <num_real_buses>,
2835 * We will stop looking for drives prematurely instead of overfilling
2839 if (highest_bus > n_buses) {
2840 error_report("Too many IDE buses defined (%d > %d)",
2841 highest_bus, n_buses);
2845 for (i = 0; i < n; i++) {
2846 hd[i] = drive_get_by_index(IF_IDE, i);