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"
36 #include "qemu/cutils.h"
38 #include "hw/ide/internal.h"
40 /* These values were based on a Seagate ST3500418AS but have been modified
41 to make more sense in QEMU */
42 static const int smart_attributes[][12] = {
43 /* id, flags, hflags, val, wrst, raw (6 bytes), threshold */
44 /* raw read error rate*/
45 { 0x01, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06},
47 { 0x03, 0x03, 0x00, 0x64, 0x64, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
48 /* start stop count */
49 { 0x04, 0x02, 0x00, 0x64, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14},
50 /* remapped sectors */
51 { 0x05, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24},
53 { 0x09, 0x03, 0x00, 0x64, 0x64, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
54 /* power cycle count */
55 { 0x0c, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
56 /* airflow-temperature-celsius */
57 { 190, 0x03, 0x00, 0x45, 0x45, 0x1f, 0x00, 0x1f, 0x1f, 0x00, 0x00, 0x32},
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(
445 int64_t offset, QEMUIOVector *qiov,
446 BlockCompletionFunc *cb, void *cb_opaque, void *opaque)
448 BlockBackend *blk = opaque;
451 iocb = blk_aio_get(&trim_aiocb_info, blk, cb, cb_opaque);
453 iocb->bh = qemu_bh_new(ide_trim_bh_cb, iocb);
458 ide_issue_trim_cb(iocb, 0);
459 return &iocb->common;
462 void ide_abort_command(IDEState *s)
464 ide_transfer_stop(s);
465 s->status = READY_STAT | ERR_STAT;
469 static void ide_set_retry(IDEState *s)
471 s->bus->retry_unit = s->unit;
472 s->bus->retry_sector_num = ide_get_sector(s);
473 s->bus->retry_nsector = s->nsector;
476 static void ide_clear_retry(IDEState *s)
478 s->bus->retry_unit = -1;
479 s->bus->retry_sector_num = 0;
480 s->bus->retry_nsector = 0;
483 /* prepare data transfer and tell what to do after */
484 void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
485 EndTransferFunc *end_transfer_func)
487 s->end_transfer_func = end_transfer_func;
489 s->data_end = buf + size;
491 if (!(s->status & ERR_STAT)) {
492 s->status |= DRQ_STAT;
494 if (s->bus->dma->ops->start_transfer) {
495 s->bus->dma->ops->start_transfer(s->bus->dma);
499 static void ide_cmd_done(IDEState *s)
501 if (s->bus->dma->ops->cmd_done) {
502 s->bus->dma->ops->cmd_done(s->bus->dma);
506 static void ide_transfer_halt(IDEState *s,
507 void(*end_transfer_func)(IDEState *),
510 s->end_transfer_func = end_transfer_func;
511 s->data_ptr = s->io_buffer;
512 s->data_end = s->io_buffer;
513 s->status &= ~DRQ_STAT;
519 void ide_transfer_stop(IDEState *s)
521 ide_transfer_halt(s, ide_transfer_stop, true);
524 static void ide_transfer_cancel(IDEState *s)
526 ide_transfer_halt(s, ide_transfer_cancel, false);
529 int64_t ide_get_sector(IDEState *s)
532 if (s->select & 0x40) {
535 sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) |
536 (s->lcyl << 8) | s->sector;
538 sector_num = ((int64_t)s->hob_hcyl << 40) |
539 ((int64_t) s->hob_lcyl << 32) |
540 ((int64_t) s->hob_sector << 24) |
541 ((int64_t) s->hcyl << 16) |
542 ((int64_t) s->lcyl << 8) | s->sector;
545 sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
546 (s->select & 0x0f) * s->sectors + (s->sector - 1);
551 void ide_set_sector(IDEState *s, int64_t sector_num)
554 if (s->select & 0x40) {
556 s->select = (s->select & 0xf0) | (sector_num >> 24);
557 s->hcyl = (sector_num >> 16);
558 s->lcyl = (sector_num >> 8);
559 s->sector = (sector_num);
561 s->sector = sector_num;
562 s->lcyl = sector_num >> 8;
563 s->hcyl = sector_num >> 16;
564 s->hob_sector = sector_num >> 24;
565 s->hob_lcyl = sector_num >> 32;
566 s->hob_hcyl = sector_num >> 40;
569 cyl = sector_num / (s->heads * s->sectors);
570 r = sector_num % (s->heads * s->sectors);
573 s->select = (s->select & 0xf0) | ((r / s->sectors) & 0x0f);
574 s->sector = (r % s->sectors) + 1;
578 static void ide_rw_error(IDEState *s) {
579 ide_abort_command(s);
583 static bool ide_sect_range_ok(IDEState *s,
584 uint64_t sector, uint64_t nb_sectors)
586 uint64_t total_sectors;
588 blk_get_geometry(s->blk, &total_sectors);
589 if (sector > total_sectors || nb_sectors > total_sectors - sector) {
595 static void ide_buffered_readv_cb(void *opaque, int ret)
597 IDEBufferedRequest *req = opaque;
598 if (!req->orphaned) {
600 qemu_iovec_from_buf(req->original_qiov, 0, req->iov.iov_base,
601 req->original_qiov->size);
603 req->original_cb(req->original_opaque, ret);
605 QLIST_REMOVE(req, list);
606 qemu_vfree(req->iov.iov_base);
610 #define MAX_BUFFERED_REQS 16
612 BlockAIOCB *ide_buffered_readv(IDEState *s, int64_t sector_num,
613 QEMUIOVector *iov, int nb_sectors,
614 BlockCompletionFunc *cb, void *opaque)
617 IDEBufferedRequest *req;
620 QLIST_FOREACH(req, &s->buffered_requests, list) {
623 if (c > MAX_BUFFERED_REQS) {
624 return blk_abort_aio_request(s->blk, cb, opaque, -EIO);
627 req = g_new0(IDEBufferedRequest, 1);
628 req->original_qiov = iov;
629 req->original_cb = cb;
630 req->original_opaque = opaque;
631 req->iov.iov_base = qemu_blockalign(blk_bs(s->blk), iov->size);
632 req->iov.iov_len = iov->size;
633 qemu_iovec_init_external(&req->qiov, &req->iov, 1);
635 aioreq = blk_aio_preadv(s->blk, sector_num << BDRV_SECTOR_BITS,
636 &req->qiov, 0, ide_buffered_readv_cb, req);
638 QLIST_INSERT_HEAD(&s->buffered_requests, req, list);
643 * Cancel all pending DMA requests.
644 * Any buffered DMA requests are instantly canceled,
645 * but any pending unbuffered DMA requests must be waited on.
647 void ide_cancel_dma_sync(IDEState *s)
649 IDEBufferedRequest *req;
651 /* First invoke the callbacks of all buffered requests
652 * and flag those requests as orphaned. Ideally there
653 * are no unbuffered (Scatter Gather DMA Requests or
654 * write requests) pending and we can avoid to drain. */
655 QLIST_FOREACH(req, &s->buffered_requests, list) {
656 if (!req->orphaned) {
658 printf("%s: invoking cb %p of buffered request %p with"
659 " -ECANCELED\n", __func__, req->original_cb, req);
661 req->original_cb(req->original_opaque, -ECANCELED);
663 req->orphaned = true;
667 * We can't cancel Scatter Gather DMA in the middle of the
668 * operation or a partial (not full) DMA transfer would reach
669 * the storage so we wait for completion instead (we beahve
670 * like if the DMA was completed by the time the guest trying
671 * to cancel dma with bmdma_cmd_writeb with BM_CMD_START not
674 * In the future we'll be able to safely cancel the I/O if the
675 * whole DMA operation will be submitted to disk with a single
676 * aio operation with preadv/pwritev.
678 if (s->bus->dma->aiocb) {
680 printf("%s: draining all remaining requests", __func__);
683 assert(s->bus->dma->aiocb == NULL);
687 static void ide_sector_read(IDEState *s);
689 static void ide_sector_read_cb(void *opaque, int ret)
691 IDEState *s = opaque;
695 s->status &= ~BUSY_STAT;
697 if (ret == -ECANCELED) {
701 if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO |
707 block_acct_done(blk_get_stats(s->blk), &s->acct);
710 if (n > s->req_nb_sectors) {
711 n = s->req_nb_sectors;
714 ide_set_sector(s, ide_get_sector(s) + n);
716 /* Allow the guest to read the io_buffer */
717 ide_transfer_start(s, s->io_buffer, n * BDRV_SECTOR_SIZE, ide_sector_read);
721 static void ide_sector_read(IDEState *s)
726 s->status = READY_STAT | SEEK_STAT;
727 s->error = 0; /* not needed by IDE spec, but needed by Windows */
728 sector_num = ide_get_sector(s);
732 ide_transfer_stop(s);
736 s->status |= BUSY_STAT;
738 if (n > s->req_nb_sectors) {
739 n = s->req_nb_sectors;
742 #if defined(DEBUG_IDE)
743 printf("sector=%" PRId64 "\n", sector_num);
746 if (!ide_sect_range_ok(s, sector_num, n)) {
748 block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_READ);
752 s->iov.iov_base = s->io_buffer;
753 s->iov.iov_len = n * BDRV_SECTOR_SIZE;
754 qemu_iovec_init_external(&s->qiov, &s->iov, 1);
756 block_acct_start(blk_get_stats(s->blk), &s->acct,
757 n * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
758 s->pio_aiocb = ide_buffered_readv(s, sector_num, &s->qiov, n,
759 ide_sector_read_cb, s);
762 void dma_buf_commit(IDEState *s, uint32_t tx_bytes)
764 if (s->bus->dma->ops->commit_buf) {
765 s->bus->dma->ops->commit_buf(s->bus->dma, tx_bytes);
767 s->io_buffer_offset += tx_bytes;
768 qemu_sglist_destroy(&s->sg);
771 void ide_set_inactive(IDEState *s, bool more)
773 s->bus->dma->aiocb = NULL;
775 if (s->bus->dma->ops->set_inactive) {
776 s->bus->dma->ops->set_inactive(s->bus->dma, more);
781 void ide_dma_error(IDEState *s)
783 dma_buf_commit(s, 0);
784 ide_abort_command(s);
785 ide_set_inactive(s, false);
789 int ide_handle_rw_error(IDEState *s, int error, int op)
791 bool is_read = (op & IDE_RETRY_READ) != 0;
792 BlockErrorAction action = blk_get_error_action(s->blk, is_read, error);
794 if (action == BLOCK_ERROR_ACTION_STOP) {
795 assert(s->bus->retry_unit == s->unit);
796 s->bus->error_status = op;
797 } else if (action == BLOCK_ERROR_ACTION_REPORT) {
798 block_acct_failed(blk_get_stats(s->blk), &s->acct);
799 if (IS_IDE_RETRY_DMA(op)) {
801 } else if (IS_IDE_RETRY_ATAPI(op)) {
802 ide_atapi_io_error(s, -error);
807 blk_error_action(s->blk, action, is_read, error);
808 return action != BLOCK_ERROR_ACTION_IGNORE;
811 static void ide_dma_cb(void *opaque, int ret)
813 IDEState *s = opaque;
817 bool stay_active = false;
819 if (ret == -ECANCELED) {
823 if (ide_handle_rw_error(s, -ret, ide_dma_cmd_to_retry(s->dma_cmd))) {
828 n = s->io_buffer_size >> 9;
829 if (n > s->nsector) {
830 /* The PRDs were longer than needed for this request. Shorten them so
831 * we don't get a negative remainder. The Active bit must remain set
832 * after the request completes. */
837 sector_num = ide_get_sector(s);
839 assert(n * 512 == s->sg.size);
840 dma_buf_commit(s, s->sg.size);
842 ide_set_sector(s, sector_num);
846 /* end of transfer ? */
847 if (s->nsector == 0) {
848 s->status = READY_STAT | SEEK_STAT;
853 /* launch next transfer */
855 s->io_buffer_index = 0;
856 s->io_buffer_size = n * 512;
857 if (s->bus->dma->ops->prepare_buf(s->bus->dma, s->io_buffer_size) < 512) {
858 /* The PRDs were too short. Reset the Active bit, but don't raise an
860 s->status = READY_STAT | SEEK_STAT;
861 dma_buf_commit(s, 0);
866 printf("ide_dma_cb: sector_num=%" PRId64 " n=%d, cmd_cmd=%d\n",
867 sector_num, n, s->dma_cmd);
870 if ((s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) &&
871 !ide_sect_range_ok(s, sector_num, n)) {
873 block_acct_invalid(blk_get_stats(s->blk), s->acct.type);
877 offset = sector_num << BDRV_SECTOR_BITS;
878 switch (s->dma_cmd) {
880 s->bus->dma->aiocb = dma_blk_read(s->blk, &s->sg, offset,
884 s->bus->dma->aiocb = dma_blk_write(s->blk, &s->sg, offset,
888 s->bus->dma->aiocb = dma_blk_io(blk_get_aio_context(s->blk),
890 ide_issue_trim, s->blk, ide_dma_cb, s,
891 DMA_DIRECTION_TO_DEVICE);
899 if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) {
900 block_acct_done(blk_get_stats(s->blk), &s->acct);
902 ide_set_inactive(s, stay_active);
905 static void ide_sector_start_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
907 s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT;
908 s->io_buffer_size = 0;
909 s->dma_cmd = dma_cmd;
913 block_acct_start(blk_get_stats(s->blk), &s->acct,
914 s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
917 block_acct_start(blk_get_stats(s->blk), &s->acct,
918 s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
924 ide_start_dma(s, ide_dma_cb);
927 void ide_start_dma(IDEState *s, BlockCompletionFunc *cb)
929 s->io_buffer_index = 0;
931 if (s->bus->dma->ops->start_dma) {
932 s->bus->dma->ops->start_dma(s->bus->dma, s, cb);
936 static void ide_sector_write(IDEState *s);
938 static void ide_sector_write_timer_cb(void *opaque)
940 IDEState *s = opaque;
944 static void ide_sector_write_cb(void *opaque, int ret)
946 IDEState *s = opaque;
949 if (ret == -ECANCELED) {
954 s->status &= ~BUSY_STAT;
957 if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO)) {
962 block_acct_done(blk_get_stats(s->blk), &s->acct);
965 if (n > s->req_nb_sectors) {
966 n = s->req_nb_sectors;
970 ide_set_sector(s, ide_get_sector(s) + n);
971 if (s->nsector == 0) {
972 /* no more sectors to write */
973 ide_transfer_stop(s);
976 if (n1 > s->req_nb_sectors) {
977 n1 = s->req_nb_sectors;
979 ide_transfer_start(s, s->io_buffer, n1 * BDRV_SECTOR_SIZE,
983 if (win2k_install_hack && ((++s->irq_count % 16) == 0)) {
984 /* It seems there is a bug in the Windows 2000 installer HDD
985 IDE driver which fills the disk with empty logs when the
986 IDE write IRQ comes too early. This hack tries to correct
987 that at the expense of slower write performances. Use this
988 option _only_ to install Windows 2000. You must disable it
990 timer_mod(s->sector_write_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
991 (NANOSECONDS_PER_SECOND / 1000));
997 static void ide_sector_write(IDEState *s)
1002 s->status = READY_STAT | SEEK_STAT | BUSY_STAT;
1003 sector_num = ide_get_sector(s);
1004 #if defined(DEBUG_IDE)
1005 printf("sector=%" PRId64 "\n", sector_num);
1008 if (n > s->req_nb_sectors) {
1009 n = s->req_nb_sectors;
1012 if (!ide_sect_range_ok(s, sector_num, n)) {
1014 block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_WRITE);
1018 s->iov.iov_base = s->io_buffer;
1019 s->iov.iov_len = n * BDRV_SECTOR_SIZE;
1020 qemu_iovec_init_external(&s->qiov, &s->iov, 1);
1022 block_acct_start(blk_get_stats(s->blk), &s->acct,
1023 n * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
1024 s->pio_aiocb = blk_aio_pwritev(s->blk, sector_num << BDRV_SECTOR_BITS,
1025 &s->qiov, 0, ide_sector_write_cb, s);
1028 static void ide_flush_cb(void *opaque, int ret)
1030 IDEState *s = opaque;
1032 s->pio_aiocb = NULL;
1034 if (ret == -ECANCELED) {
1038 /* XXX: What sector number to set here? */
1039 if (ide_handle_rw_error(s, -ret, IDE_RETRY_FLUSH)) {
1045 block_acct_done(blk_get_stats(s->blk), &s->acct);
1047 s->status = READY_STAT | SEEK_STAT;
1049 ide_set_irq(s->bus);
1052 static void ide_flush_cache(IDEState *s)
1054 if (s->blk == NULL) {
1059 s->status |= BUSY_STAT;
1061 block_acct_start(blk_get_stats(s->blk), &s->acct, 0, BLOCK_ACCT_FLUSH);
1062 s->pio_aiocb = blk_aio_flush(s->blk, ide_flush_cb, s);
1065 static void ide_cfata_metadata_inquiry(IDEState *s)
1070 p = (uint16_t *) s->io_buffer;
1071 memset(p, 0, 0x200);
1072 spd = ((s->mdata_size - 1) >> 9) + 1;
1074 put_le16(p + 0, 0x0001); /* Data format revision */
1075 put_le16(p + 1, 0x0000); /* Media property: silicon */
1076 put_le16(p + 2, s->media_changed); /* Media status */
1077 put_le16(p + 3, s->mdata_size & 0xffff); /* Capacity in bytes (low) */
1078 put_le16(p + 4, s->mdata_size >> 16); /* Capacity in bytes (high) */
1079 put_le16(p + 5, spd & 0xffff); /* Sectors per device (low) */
1080 put_le16(p + 6, spd >> 16); /* Sectors per device (high) */
1083 static void ide_cfata_metadata_read(IDEState *s)
1087 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
1088 s->status = ERR_STAT;
1089 s->error = ABRT_ERR;
1093 p = (uint16_t *) s->io_buffer;
1094 memset(p, 0, 0x200);
1096 put_le16(p + 0, s->media_changed); /* Media status */
1097 memcpy(p + 1, s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
1098 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
1099 s->nsector << 9), 0x200 - 2));
1102 static void ide_cfata_metadata_write(IDEState *s)
1104 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
1105 s->status = ERR_STAT;
1106 s->error = ABRT_ERR;
1110 s->media_changed = 0;
1112 memcpy(s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
1114 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
1115 s->nsector << 9), 0x200 - 2));
1118 /* called when the inserted state of the media has changed */
1119 static void ide_cd_change_cb(void *opaque, bool load)
1121 IDEState *s = opaque;
1122 uint64_t nb_sectors;
1124 s->tray_open = !load;
1125 blk_get_geometry(s->blk, &nb_sectors);
1126 s->nb_sectors = nb_sectors;
1129 * First indicate to the guest that a CD has been removed. That's
1130 * done on the next command the guest sends us.
1132 * Then we set UNIT_ATTENTION, by which the guest will
1133 * detect a new CD in the drive. See ide_atapi_cmd() for details.
1135 s->cdrom_changed = 1;
1136 s->events.new_media = true;
1137 s->events.eject_request = false;
1138 ide_set_irq(s->bus);
1141 static void ide_cd_eject_request_cb(void *opaque, bool force)
1143 IDEState *s = opaque;
1145 s->events.eject_request = true;
1147 s->tray_locked = false;
1149 ide_set_irq(s->bus);
1152 static void ide_cmd_lba48_transform(IDEState *s, int lba48)
1156 /* handle the 'magic' 0 nsector count conversion here. to avoid
1157 * fiddling with the rest of the read logic, we just store the
1158 * full sector count in ->nsector and ignore ->hob_nsector from now
1164 if (!s->nsector && !s->hob_nsector)
1167 int lo = s->nsector;
1168 int hi = s->hob_nsector;
1170 s->nsector = (hi << 8) | lo;
1175 static void ide_clear_hob(IDEBus *bus)
1177 /* any write clears HOB high bit of device control register */
1178 bus->ifs[0].select &= ~(1 << 7);
1179 bus->ifs[1].select &= ~(1 << 7);
1182 void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
1184 IDEBus *bus = opaque;
1187 printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
1192 /* ignore writes to command block while busy with previous command */
1193 if (addr != 7 && (idebus_active_if(bus)->status & (BUSY_STAT|DRQ_STAT)))
1201 /* NOTE: data is written to the two drives */
1202 bus->ifs[0].hob_feature = bus->ifs[0].feature;
1203 bus->ifs[1].hob_feature = bus->ifs[1].feature;
1204 bus->ifs[0].feature = val;
1205 bus->ifs[1].feature = val;
1209 bus->ifs[0].hob_nsector = bus->ifs[0].nsector;
1210 bus->ifs[1].hob_nsector = bus->ifs[1].nsector;
1211 bus->ifs[0].nsector = val;
1212 bus->ifs[1].nsector = val;
1216 bus->ifs[0].hob_sector = bus->ifs[0].sector;
1217 bus->ifs[1].hob_sector = bus->ifs[1].sector;
1218 bus->ifs[0].sector = val;
1219 bus->ifs[1].sector = val;
1223 bus->ifs[0].hob_lcyl = bus->ifs[0].lcyl;
1224 bus->ifs[1].hob_lcyl = bus->ifs[1].lcyl;
1225 bus->ifs[0].lcyl = val;
1226 bus->ifs[1].lcyl = val;
1230 bus->ifs[0].hob_hcyl = bus->ifs[0].hcyl;
1231 bus->ifs[1].hob_hcyl = bus->ifs[1].hcyl;
1232 bus->ifs[0].hcyl = val;
1233 bus->ifs[1].hcyl = val;
1236 /* FIXME: HOB readback uses bit 7 */
1237 bus->ifs[0].select = (val & ~0x10) | 0xa0;
1238 bus->ifs[1].select = (val | 0x10) | 0xa0;
1240 bus->unit = (val >> 4) & 1;
1245 ide_exec_cmd(bus, val);
1250 static void ide_reset(IDEState *s)
1253 printf("ide: reset\n");
1257 blk_aio_cancel(s->pio_aiocb);
1258 s->pio_aiocb = NULL;
1261 if (s->drive_kind == IDE_CFATA)
1262 s->mult_sectors = 0;
1264 s->mult_sectors = MAX_MULT_SECTORS;
1281 s->status = READY_STAT | SEEK_STAT;
1285 /* ATAPI specific */
1288 s->cdrom_changed = 0;
1289 s->packet_transfer_size = 0;
1290 s->elementary_transfer_size = 0;
1291 s->io_buffer_index = 0;
1292 s->cd_sector_size = 0;
1297 s->io_buffer_size = 0;
1298 s->req_nb_sectors = 0;
1300 ide_set_signature(s);
1301 /* init the transfer handler so that 0xffff is returned on data
1303 s->end_transfer_func = ide_dummy_transfer_stop;
1304 ide_dummy_transfer_stop(s);
1305 s->media_changed = 0;
1308 static bool cmd_nop(IDEState *s, uint8_t cmd)
1313 static bool cmd_device_reset(IDEState *s, uint8_t cmd)
1315 /* Halt PIO (in the DRQ phase), then DMA */
1316 ide_transfer_cancel(s);
1317 ide_cancel_dma_sync(s);
1319 /* Reset any PIO commands, reset signature, etc */
1322 /* RESET: ATA8-ACS3 7.10.4 "Normal Outputs";
1323 * ATA8-ACS3 Table 184 "Device Signatures for Normal Output" */
1326 /* Do not overwrite status register */
1330 static bool cmd_data_set_management(IDEState *s, uint8_t cmd)
1332 switch (s->feature) {
1335 ide_sector_start_dma(s, IDE_DMA_TRIM);
1341 ide_abort_command(s);
1345 static bool cmd_identify(IDEState *s, uint8_t cmd)
1347 if (s->blk && s->drive_kind != IDE_CD) {
1348 if (s->drive_kind != IDE_CFATA) {
1351 ide_cfata_identify(s);
1353 s->status = READY_STAT | SEEK_STAT;
1354 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1355 ide_set_irq(s->bus);
1358 if (s->drive_kind == IDE_CD) {
1359 ide_set_signature(s);
1361 ide_abort_command(s);
1367 static bool cmd_verify(IDEState *s, uint8_t cmd)
1369 bool lba48 = (cmd == WIN_VERIFY_EXT);
1371 /* do sector number check ? */
1372 ide_cmd_lba48_transform(s, lba48);
1377 static bool cmd_set_multiple_mode(IDEState *s, uint8_t cmd)
1379 if (s->drive_kind == IDE_CFATA && s->nsector == 0) {
1380 /* Disable Read and Write Multiple */
1381 s->mult_sectors = 0;
1382 } else if ((s->nsector & 0xff) != 0 &&
1383 ((s->nsector & 0xff) > MAX_MULT_SECTORS ||
1384 (s->nsector & (s->nsector - 1)) != 0)) {
1385 ide_abort_command(s);
1387 s->mult_sectors = s->nsector & 0xff;
1393 static bool cmd_read_multiple(IDEState *s, uint8_t cmd)
1395 bool lba48 = (cmd == WIN_MULTREAD_EXT);
1397 if (!s->blk || !s->mult_sectors) {
1398 ide_abort_command(s);
1402 ide_cmd_lba48_transform(s, lba48);
1403 s->req_nb_sectors = s->mult_sectors;
1408 static bool cmd_write_multiple(IDEState *s, uint8_t cmd)
1410 bool lba48 = (cmd == WIN_MULTWRITE_EXT);
1413 if (!s->blk || !s->mult_sectors) {
1414 ide_abort_command(s);
1418 ide_cmd_lba48_transform(s, lba48);
1420 s->req_nb_sectors = s->mult_sectors;
1421 n = MIN(s->nsector, s->req_nb_sectors);
1423 s->status = SEEK_STAT | READY_STAT;
1424 ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
1426 s->media_changed = 1;
1431 static bool cmd_read_pio(IDEState *s, uint8_t cmd)
1433 bool lba48 = (cmd == WIN_READ_EXT);
1435 if (s->drive_kind == IDE_CD) {
1436 ide_set_signature(s); /* odd, but ATA4 8.27.5.2 requires it */
1437 ide_abort_command(s);
1442 ide_abort_command(s);
1446 ide_cmd_lba48_transform(s, lba48);
1447 s->req_nb_sectors = 1;
1453 static bool cmd_write_pio(IDEState *s, uint8_t cmd)
1455 bool lba48 = (cmd == WIN_WRITE_EXT);
1458 ide_abort_command(s);
1462 ide_cmd_lba48_transform(s, lba48);
1464 s->req_nb_sectors = 1;
1465 s->status = SEEK_STAT | READY_STAT;
1466 ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
1468 s->media_changed = 1;
1473 static bool cmd_read_dma(IDEState *s, uint8_t cmd)
1475 bool lba48 = (cmd == WIN_READDMA_EXT);
1478 ide_abort_command(s);
1482 ide_cmd_lba48_transform(s, lba48);
1483 ide_sector_start_dma(s, IDE_DMA_READ);
1488 static bool cmd_write_dma(IDEState *s, uint8_t cmd)
1490 bool lba48 = (cmd == WIN_WRITEDMA_EXT);
1493 ide_abort_command(s);
1497 ide_cmd_lba48_transform(s, lba48);
1498 ide_sector_start_dma(s, IDE_DMA_WRITE);
1500 s->media_changed = 1;
1505 static bool cmd_flush_cache(IDEState *s, uint8_t cmd)
1511 static bool cmd_seek(IDEState *s, uint8_t cmd)
1513 /* XXX: Check that seek is within bounds */
1517 static bool cmd_read_native_max(IDEState *s, uint8_t cmd)
1519 bool lba48 = (cmd == WIN_READ_NATIVE_MAX_EXT);
1521 /* Refuse if no sectors are addressable (e.g. medium not inserted) */
1522 if (s->nb_sectors == 0) {
1523 ide_abort_command(s);
1527 ide_cmd_lba48_transform(s, lba48);
1528 ide_set_sector(s, s->nb_sectors - 1);
1533 static bool cmd_check_power_mode(IDEState *s, uint8_t cmd)
1535 s->nsector = 0xff; /* device active or idle */
1539 static bool cmd_set_features(IDEState *s, uint8_t cmd)
1541 uint16_t *identify_data;
1544 ide_abort_command(s);
1548 /* XXX: valid for CDROM ? */
1549 switch (s->feature) {
1550 case 0x02: /* write cache enable */
1551 blk_set_enable_write_cache(s->blk, true);
1552 identify_data = (uint16_t *)s->identify_data;
1553 put_le16(identify_data + 85, (1 << 14) | (1 << 5) | 1);
1555 case 0x82: /* write cache disable */
1556 blk_set_enable_write_cache(s->blk, false);
1557 identify_data = (uint16_t *)s->identify_data;
1558 put_le16(identify_data + 85, (1 << 14) | 1);
1561 case 0xcc: /* reverting to power-on defaults enable */
1562 case 0x66: /* reverting to power-on defaults disable */
1563 case 0xaa: /* read look-ahead enable */
1564 case 0x55: /* read look-ahead disable */
1565 case 0x05: /* set advanced power management mode */
1566 case 0x85: /* disable advanced power management mode */
1567 case 0x69: /* NOP */
1568 case 0x67: /* NOP */
1569 case 0x96: /* NOP */
1570 case 0x9a: /* NOP */
1571 case 0x42: /* enable Automatic Acoustic Mode */
1572 case 0xc2: /* disable Automatic Acoustic Mode */
1574 case 0x03: /* set transfer mode */
1576 uint8_t val = s->nsector & 0x07;
1577 identify_data = (uint16_t *)s->identify_data;
1579 switch (s->nsector >> 3) {
1580 case 0x00: /* pio default */
1581 case 0x01: /* pio mode */
1582 put_le16(identify_data + 62, 0x07);
1583 put_le16(identify_data + 63, 0x07);
1584 put_le16(identify_data + 88, 0x3f);
1586 case 0x02: /* sigle word dma mode*/
1587 put_le16(identify_data + 62, 0x07 | (1 << (val + 8)));
1588 put_le16(identify_data + 63, 0x07);
1589 put_le16(identify_data + 88, 0x3f);
1591 case 0x04: /* mdma mode */
1592 put_le16(identify_data + 62, 0x07);
1593 put_le16(identify_data + 63, 0x07 | (1 << (val + 8)));
1594 put_le16(identify_data + 88, 0x3f);
1596 case 0x08: /* udma mode */
1597 put_le16(identify_data + 62, 0x07);
1598 put_le16(identify_data + 63, 0x07);
1599 put_le16(identify_data + 88, 0x3f | (1 << (val + 8)));
1609 ide_abort_command(s);
1614 /*** ATAPI commands ***/
1616 static bool cmd_identify_packet(IDEState *s, uint8_t cmd)
1618 ide_atapi_identify(s);
1619 s->status = READY_STAT | SEEK_STAT;
1620 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1621 ide_set_irq(s->bus);
1625 static bool cmd_exec_dev_diagnostic(IDEState *s, uint8_t cmd)
1627 ide_set_signature(s);
1629 if (s->drive_kind == IDE_CD) {
1630 s->status = 0; /* ATAPI spec (v6) section 9.10 defines packet
1631 * devices to return a clear status register
1632 * with READY_STAT *not* set. */
1635 s->status = READY_STAT | SEEK_STAT;
1636 /* The bits of the error register are not as usual for this command!
1637 * They are part of the regular output (this is why ERR_STAT isn't set)
1638 * Device 0 passed, Device 1 passed or not present. */
1640 ide_set_irq(s->bus);
1646 static bool cmd_packet(IDEState *s, uint8_t cmd)
1648 /* overlapping commands not supported */
1649 if (s->feature & 0x02) {
1650 ide_abort_command(s);
1654 s->status = READY_STAT | SEEK_STAT;
1655 s->atapi_dma = s->feature & 1;
1657 s->dma_cmd = IDE_DMA_ATAPI;
1660 ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
1666 /*** CF-ATA commands ***/
1668 static bool cmd_cfa_req_ext_error_code(IDEState *s, uint8_t cmd)
1670 s->error = 0x09; /* miscellaneous error */
1671 s->status = READY_STAT | SEEK_STAT;
1672 ide_set_irq(s->bus);
1677 static bool cmd_cfa_erase_sectors(IDEState *s, uint8_t cmd)
1679 /* WIN_SECURITY_FREEZE_LOCK has the same ID as CFA_WEAR_LEVEL and is
1680 * required for Windows 8 to work with AHCI */
1682 if (cmd == CFA_WEAR_LEVEL) {
1686 if (cmd == CFA_ERASE_SECTORS) {
1687 s->media_changed = 1;
1693 static bool cmd_cfa_translate_sector(IDEState *s, uint8_t cmd)
1695 s->status = READY_STAT | SEEK_STAT;
1697 memset(s->io_buffer, 0, 0x200);
1698 s->io_buffer[0x00] = s->hcyl; /* Cyl MSB */
1699 s->io_buffer[0x01] = s->lcyl; /* Cyl LSB */
1700 s->io_buffer[0x02] = s->select; /* Head */
1701 s->io_buffer[0x03] = s->sector; /* Sector */
1702 s->io_buffer[0x04] = ide_get_sector(s) >> 16; /* LBA MSB */
1703 s->io_buffer[0x05] = ide_get_sector(s) >> 8; /* LBA */
1704 s->io_buffer[0x06] = ide_get_sector(s) >> 0; /* LBA LSB */
1705 s->io_buffer[0x13] = 0x00; /* Erase flag */
1706 s->io_buffer[0x18] = 0x00; /* Hot count */
1707 s->io_buffer[0x19] = 0x00; /* Hot count */
1708 s->io_buffer[0x1a] = 0x01; /* Hot count */
1710 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1711 ide_set_irq(s->bus);
1716 static bool cmd_cfa_access_metadata_storage(IDEState *s, uint8_t cmd)
1718 switch (s->feature) {
1719 case 0x02: /* Inquiry Metadata Storage */
1720 ide_cfata_metadata_inquiry(s);
1722 case 0x03: /* Read Metadata Storage */
1723 ide_cfata_metadata_read(s);
1725 case 0x04: /* Write Metadata Storage */
1726 ide_cfata_metadata_write(s);
1729 ide_abort_command(s);
1733 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1734 s->status = 0x00; /* NOTE: READY is _not_ set */
1735 ide_set_irq(s->bus);
1740 static bool cmd_ibm_sense_condition(IDEState *s, uint8_t cmd)
1742 switch (s->feature) {
1743 case 0x01: /* sense temperature in device */
1744 s->nsector = 0x50; /* +20 C */
1747 ide_abort_command(s);
1755 /*** SMART commands ***/
1757 static bool cmd_smart(IDEState *s, uint8_t cmd)
1761 if (s->hcyl != 0xc2 || s->lcyl != 0x4f) {
1765 if (!s->smart_enabled && s->feature != SMART_ENABLE) {
1769 switch (s->feature) {
1771 s->smart_enabled = 0;
1775 s->smart_enabled = 1;
1778 case SMART_ATTR_AUTOSAVE:
1779 switch (s->sector) {
1781 s->smart_autosave = 0;
1784 s->smart_autosave = 1;
1792 if (!s->smart_errors) {
1801 case SMART_READ_THRESH:
1802 memset(s->io_buffer, 0, 0x200);
1803 s->io_buffer[0] = 0x01; /* smart struct version */
1805 for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
1806 s->io_buffer[2 + 0 + (n * 12)] = smart_attributes[n][0];
1807 s->io_buffer[2 + 1 + (n * 12)] = smart_attributes[n][11];
1811 for (n = 0; n < 511; n++) {
1812 s->io_buffer[511] += s->io_buffer[n];
1814 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1816 s->status = READY_STAT | SEEK_STAT;
1817 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1818 ide_set_irq(s->bus);
1821 case SMART_READ_DATA:
1822 memset(s->io_buffer, 0, 0x200);
1823 s->io_buffer[0] = 0x01; /* smart struct version */
1825 for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
1827 for (i = 0; i < 11; i++) {
1828 s->io_buffer[2 + i + (n * 12)] = smart_attributes[n][i];
1832 s->io_buffer[362] = 0x02 | (s->smart_autosave ? 0x80 : 0x00);
1833 if (s->smart_selftest_count == 0) {
1834 s->io_buffer[363] = 0;
1837 s->smart_selftest_data[3 +
1838 (s->smart_selftest_count - 1) *
1841 s->io_buffer[364] = 0x20;
1842 s->io_buffer[365] = 0x01;
1843 /* offline data collection capacity: execute + self-test*/
1844 s->io_buffer[367] = (1 << 4 | 1 << 3 | 1);
1845 s->io_buffer[368] = 0x03; /* smart capability (1) */
1846 s->io_buffer[369] = 0x00; /* smart capability (2) */
1847 s->io_buffer[370] = 0x01; /* error logging supported */
1848 s->io_buffer[372] = 0x02; /* minutes for poll short test */
1849 s->io_buffer[373] = 0x36; /* minutes for poll ext test */
1850 s->io_buffer[374] = 0x01; /* minutes for poll conveyance */
1852 for (n = 0; n < 511; n++) {
1853 s->io_buffer[511] += s->io_buffer[n];
1855 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1857 s->status = READY_STAT | SEEK_STAT;
1858 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1859 ide_set_irq(s->bus);
1862 case SMART_READ_LOG:
1863 switch (s->sector) {
1864 case 0x01: /* summary smart error log */
1865 memset(s->io_buffer, 0, 0x200);
1866 s->io_buffer[0] = 0x01;
1867 s->io_buffer[1] = 0x00; /* no error entries */
1868 s->io_buffer[452] = s->smart_errors & 0xff;
1869 s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8;
1871 for (n = 0; n < 511; n++) {
1872 s->io_buffer[511] += s->io_buffer[n];
1874 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1876 case 0x06: /* smart self test log */
1877 memset(s->io_buffer, 0, 0x200);
1878 s->io_buffer[0] = 0x01;
1879 if (s->smart_selftest_count == 0) {
1880 s->io_buffer[508] = 0;
1882 s->io_buffer[508] = s->smart_selftest_count;
1883 for (n = 2; n < 506; n++) {
1884 s->io_buffer[n] = s->smart_selftest_data[n];
1888 for (n = 0; n < 511; n++) {
1889 s->io_buffer[511] += s->io_buffer[n];
1891 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1896 s->status = READY_STAT | SEEK_STAT;
1897 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1898 ide_set_irq(s->bus);
1901 case SMART_EXECUTE_OFFLINE:
1902 switch (s->sector) {
1903 case 0: /* off-line routine */
1904 case 1: /* short self test */
1905 case 2: /* extended self test */
1906 s->smart_selftest_count++;
1907 if (s->smart_selftest_count > 21) {
1908 s->smart_selftest_count = 1;
1910 n = 2 + (s->smart_selftest_count - 1) * 24;
1911 s->smart_selftest_data[n] = s->sector;
1912 s->smart_selftest_data[n + 1] = 0x00; /* OK and finished */
1913 s->smart_selftest_data[n + 2] = 0x34; /* hour count lsb */
1914 s->smart_selftest_data[n + 3] = 0x12; /* hour count msb */
1923 ide_abort_command(s);
1927 #define HD_OK (1u << IDE_HD)
1928 #define CD_OK (1u << IDE_CD)
1929 #define CFA_OK (1u << IDE_CFATA)
1930 #define HD_CFA_OK (HD_OK | CFA_OK)
1931 #define ALL_OK (HD_OK | CD_OK | CFA_OK)
1933 /* Set the Disk Seek Completed status bit during completion */
1934 #define SET_DSC (1u << 8)
1936 /* See ACS-2 T13/2015-D Table B.2 Command codes */
1937 static const struct {
1938 /* Returns true if the completion code should be run */
1939 bool (*handler)(IDEState *s, uint8_t cmd);
1941 } ide_cmd_table[0x100] = {
1942 /* NOP not implemented, mandatory for CD */
1943 [CFA_REQ_EXT_ERROR_CODE] = { cmd_cfa_req_ext_error_code, CFA_OK },
1944 [WIN_DSM] = { cmd_data_set_management, HD_CFA_OK },
1945 [WIN_DEVICE_RESET] = { cmd_device_reset, CD_OK },
1946 [WIN_RECAL] = { cmd_nop, HD_CFA_OK | SET_DSC},
1947 [WIN_READ] = { cmd_read_pio, ALL_OK },
1948 [WIN_READ_ONCE] = { cmd_read_pio, HD_CFA_OK },
1949 [WIN_READ_EXT] = { cmd_read_pio, HD_CFA_OK },
1950 [WIN_READDMA_EXT] = { cmd_read_dma, HD_CFA_OK },
1951 [WIN_READ_NATIVE_MAX_EXT] = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
1952 [WIN_MULTREAD_EXT] = { cmd_read_multiple, HD_CFA_OK },
1953 [WIN_WRITE] = { cmd_write_pio, HD_CFA_OK },
1954 [WIN_WRITE_ONCE] = { cmd_write_pio, HD_CFA_OK },
1955 [WIN_WRITE_EXT] = { cmd_write_pio, HD_CFA_OK },
1956 [WIN_WRITEDMA_EXT] = { cmd_write_dma, HD_CFA_OK },
1957 [CFA_WRITE_SECT_WO_ERASE] = { cmd_write_pio, CFA_OK },
1958 [WIN_MULTWRITE_EXT] = { cmd_write_multiple, HD_CFA_OK },
1959 [WIN_WRITE_VERIFY] = { cmd_write_pio, HD_CFA_OK },
1960 [WIN_VERIFY] = { cmd_verify, HD_CFA_OK | SET_DSC },
1961 [WIN_VERIFY_ONCE] = { cmd_verify, HD_CFA_OK | SET_DSC },
1962 [WIN_VERIFY_EXT] = { cmd_verify, HD_CFA_OK | SET_DSC },
1963 [WIN_SEEK] = { cmd_seek, HD_CFA_OK | SET_DSC },
1964 [CFA_TRANSLATE_SECTOR] = { cmd_cfa_translate_sector, CFA_OK },
1965 [WIN_DIAGNOSE] = { cmd_exec_dev_diagnostic, ALL_OK },
1966 [WIN_SPECIFY] = { cmd_nop, HD_CFA_OK | SET_DSC },
1967 [WIN_STANDBYNOW2] = { cmd_nop, HD_CFA_OK },
1968 [WIN_IDLEIMMEDIATE2] = { cmd_nop, HD_CFA_OK },
1969 [WIN_STANDBY2] = { cmd_nop, HD_CFA_OK },
1970 [WIN_SETIDLE2] = { cmd_nop, HD_CFA_OK },
1971 [WIN_CHECKPOWERMODE2] = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
1972 [WIN_SLEEPNOW2] = { cmd_nop, HD_CFA_OK },
1973 [WIN_PACKETCMD] = { cmd_packet, CD_OK },
1974 [WIN_PIDENTIFY] = { cmd_identify_packet, CD_OK },
1975 [WIN_SMART] = { cmd_smart, HD_CFA_OK | SET_DSC },
1976 [CFA_ACCESS_METADATA_STORAGE] = { cmd_cfa_access_metadata_storage, CFA_OK },
1977 [CFA_ERASE_SECTORS] = { cmd_cfa_erase_sectors, CFA_OK | SET_DSC },
1978 [WIN_MULTREAD] = { cmd_read_multiple, HD_CFA_OK },
1979 [WIN_MULTWRITE] = { cmd_write_multiple, HD_CFA_OK },
1980 [WIN_SETMULT] = { cmd_set_multiple_mode, HD_CFA_OK | SET_DSC },
1981 [WIN_READDMA] = { cmd_read_dma, HD_CFA_OK },
1982 [WIN_READDMA_ONCE] = { cmd_read_dma, HD_CFA_OK },
1983 [WIN_WRITEDMA] = { cmd_write_dma, HD_CFA_OK },
1984 [WIN_WRITEDMA_ONCE] = { cmd_write_dma, HD_CFA_OK },
1985 [CFA_WRITE_MULTI_WO_ERASE] = { cmd_write_multiple, CFA_OK },
1986 [WIN_STANDBYNOW1] = { cmd_nop, HD_CFA_OK },
1987 [WIN_IDLEIMMEDIATE] = { cmd_nop, HD_CFA_OK },
1988 [WIN_STANDBY] = { cmd_nop, HD_CFA_OK },
1989 [WIN_SETIDLE1] = { cmd_nop, HD_CFA_OK },
1990 [WIN_CHECKPOWERMODE1] = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
1991 [WIN_SLEEPNOW1] = { cmd_nop, HD_CFA_OK },
1992 [WIN_FLUSH_CACHE] = { cmd_flush_cache, ALL_OK },
1993 [WIN_FLUSH_CACHE_EXT] = { cmd_flush_cache, HD_CFA_OK },
1994 [WIN_IDENTIFY] = { cmd_identify, ALL_OK },
1995 [WIN_SETFEATURES] = { cmd_set_features, ALL_OK | SET_DSC },
1996 [IBM_SENSE_CONDITION] = { cmd_ibm_sense_condition, CFA_OK | SET_DSC },
1997 [CFA_WEAR_LEVEL] = { cmd_cfa_erase_sectors, HD_CFA_OK | SET_DSC },
1998 [WIN_READ_NATIVE_MAX] = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
2001 static bool ide_cmd_permitted(IDEState *s, uint32_t cmd)
2003 return cmd < ARRAY_SIZE(ide_cmd_table)
2004 && (ide_cmd_table[cmd].flags & (1u << s->drive_kind));
2007 void ide_exec_cmd(IDEBus *bus, uint32_t val)
2012 #if defined(DEBUG_IDE)
2013 printf("ide: CMD=%02x\n", val);
2015 s = idebus_active_if(bus);
2016 /* ignore commands to non existent slave */
2017 if (s != bus->ifs && !s->blk) {
2021 /* Only RESET is allowed while BSY and/or DRQ are set,
2022 * and only to ATAPI devices. */
2023 if (s->status & (BUSY_STAT|DRQ_STAT)) {
2024 if (val != WIN_DEVICE_RESET || s->drive_kind != IDE_CD) {
2029 if (!ide_cmd_permitted(s, val)) {
2030 ide_abort_command(s);
2031 ide_set_irq(s->bus);
2035 s->status = READY_STAT | BUSY_STAT;
2037 s->io_buffer_offset = 0;
2039 complete = ide_cmd_table[val].handler(s, val);
2041 s->status &= ~BUSY_STAT;
2042 assert(!!s->error == !!(s->status & ERR_STAT));
2044 if ((ide_cmd_table[val].flags & SET_DSC) && !s->error) {
2045 s->status |= SEEK_STAT;
2049 ide_set_irq(s->bus);
2053 uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
2055 IDEBus *bus = opaque;
2056 IDEState *s = idebus_active_if(bus);
2061 /* FIXME: HOB readback uses bit 7, but it's always set right now */
2062 //hob = s->select & (1 << 7);
2069 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
2070 (s != bus->ifs && !s->blk)) {
2075 ret = s->hob_feature;
2079 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2082 ret = s->nsector & 0xff;
2084 ret = s->hob_nsector;
2088 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2093 ret = s->hob_sector;
2097 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2106 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2115 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2123 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
2124 (s != bus->ifs && !s->blk)) {
2129 qemu_irq_lower(bus->irq);
2133 printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
2138 uint32_t ide_status_read(void *opaque, uint32_t addr)
2140 IDEBus *bus = opaque;
2141 IDEState *s = idebus_active_if(bus);
2144 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
2145 (s != bus->ifs && !s->blk)) {
2151 printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
2156 void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val)
2158 IDEBus *bus = opaque;
2163 printf("ide: write control addr=0x%x val=%02x\n", addr, val);
2165 /* common for both drives */
2166 if (!(bus->cmd & IDE_CMD_RESET) &&
2167 (val & IDE_CMD_RESET)) {
2168 /* reset low to high */
2169 for(i = 0;i < 2; i++) {
2171 s->status = BUSY_STAT | SEEK_STAT;
2174 } else if ((bus->cmd & IDE_CMD_RESET) &&
2175 !(val & IDE_CMD_RESET)) {
2177 for(i = 0;i < 2; i++) {
2179 if (s->drive_kind == IDE_CD)
2180 s->status = 0x00; /* NOTE: READY is _not_ set */
2182 s->status = READY_STAT | SEEK_STAT;
2183 ide_set_signature(s);
2191 * Returns true if the running PIO transfer is a PIO out (i.e. data is
2192 * transferred from the device to the guest), false if it's a PIO in
2194 static bool ide_is_pio_out(IDEState *s)
2196 if (s->end_transfer_func == ide_sector_write ||
2197 s->end_transfer_func == ide_atapi_cmd) {
2199 } else if (s->end_transfer_func == ide_sector_read ||
2200 s->end_transfer_func == ide_transfer_stop ||
2201 s->end_transfer_func == ide_atapi_cmd_reply_end ||
2202 s->end_transfer_func == ide_dummy_transfer_stop) {
2209 void ide_data_writew(void *opaque, uint32_t addr, uint32_t val)
2211 IDEBus *bus = opaque;
2212 IDEState *s = idebus_active_if(bus);
2215 /* PIO data access allowed only when DRQ bit is set. The result of a write
2216 * during PIO out is indeterminate, just ignore it. */
2217 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
2222 if (p + 2 > s->data_end) {
2226 *(uint16_t *)p = le16_to_cpu(val);
2229 if (p >= s->data_end) {
2230 s->status &= ~DRQ_STAT;
2231 s->end_transfer_func(s);
2235 uint32_t ide_data_readw(void *opaque, uint32_t addr)
2237 IDEBus *bus = opaque;
2238 IDEState *s = idebus_active_if(bus);
2242 /* PIO data access allowed only when DRQ bit is set. The result of a read
2243 * during PIO in is indeterminate, return 0 and don't move forward. */
2244 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
2249 if (p + 2 > s->data_end) {
2253 ret = cpu_to_le16(*(uint16_t *)p);
2256 if (p >= s->data_end) {
2257 s->status &= ~DRQ_STAT;
2258 s->end_transfer_func(s);
2263 void ide_data_writel(void *opaque, uint32_t addr, uint32_t val)
2265 IDEBus *bus = opaque;
2266 IDEState *s = idebus_active_if(bus);
2269 /* PIO data access allowed only when DRQ bit is set. The result of a write
2270 * during PIO out is indeterminate, just ignore it. */
2271 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
2276 if (p + 4 > s->data_end) {
2280 *(uint32_t *)p = le32_to_cpu(val);
2283 if (p >= s->data_end) {
2284 s->status &= ~DRQ_STAT;
2285 s->end_transfer_func(s);
2289 uint32_t ide_data_readl(void *opaque, uint32_t addr)
2291 IDEBus *bus = opaque;
2292 IDEState *s = idebus_active_if(bus);
2296 /* PIO data access allowed only when DRQ bit is set. The result of a read
2297 * during PIO in is indeterminate, return 0 and don't move forward. */
2298 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
2303 if (p + 4 > s->data_end) {
2307 ret = cpu_to_le32(*(uint32_t *)p);
2310 if (p >= s->data_end) {
2311 s->status &= ~DRQ_STAT;
2312 s->end_transfer_func(s);
2317 static void ide_dummy_transfer_stop(IDEState *s)
2319 s->data_ptr = s->io_buffer;
2320 s->data_end = s->io_buffer;
2321 s->io_buffer[0] = 0xff;
2322 s->io_buffer[1] = 0xff;
2323 s->io_buffer[2] = 0xff;
2324 s->io_buffer[3] = 0xff;
2327 void ide_bus_reset(IDEBus *bus)
2331 ide_reset(&bus->ifs[0]);
2332 ide_reset(&bus->ifs[1]);
2335 /* pending async DMA */
2336 if (bus->dma->aiocb) {
2338 printf("aio_cancel\n");
2340 blk_aio_cancel(bus->dma->aiocb);
2341 bus->dma->aiocb = NULL;
2344 /* reset dma provider too */
2345 if (bus->dma->ops->reset) {
2346 bus->dma->ops->reset(bus->dma);
2350 static bool ide_cd_is_tray_open(void *opaque)
2352 return ((IDEState *)opaque)->tray_open;
2355 static bool ide_cd_is_medium_locked(void *opaque)
2357 return ((IDEState *)opaque)->tray_locked;
2360 static void ide_resize_cb(void *opaque)
2362 IDEState *s = opaque;
2363 uint64_t nb_sectors;
2365 if (!s->identify_set) {
2369 blk_get_geometry(s->blk, &nb_sectors);
2370 s->nb_sectors = nb_sectors;
2372 /* Update the identify data buffer. */
2373 if (s->drive_kind == IDE_CFATA) {
2374 ide_cfata_identify_size(s);
2376 /* IDE_CD uses a different set of callbacks entirely. */
2377 assert(s->drive_kind != IDE_CD);
2378 ide_identify_size(s);
2382 static const BlockDevOps ide_cd_block_ops = {
2383 .change_media_cb = ide_cd_change_cb,
2384 .eject_request_cb = ide_cd_eject_request_cb,
2385 .is_tray_open = ide_cd_is_tray_open,
2386 .is_medium_locked = ide_cd_is_medium_locked,
2389 static const BlockDevOps ide_hd_block_ops = {
2390 .resize_cb = ide_resize_cb,
2393 int ide_init_drive(IDEState *s, BlockBackend *blk, IDEDriveKind kind,
2394 const char *version, const char *serial, const char *model,
2396 uint32_t cylinders, uint32_t heads, uint32_t secs,
2399 uint64_t nb_sectors;
2402 s->drive_kind = kind;
2404 blk_get_geometry(blk, &nb_sectors);
2405 s->cylinders = cylinders;
2408 s->chs_trans = chs_trans;
2409 s->nb_sectors = nb_sectors;
2411 /* The SMART values should be preserved across power cycles
2413 s->smart_enabled = 1;
2414 s->smart_autosave = 1;
2415 s->smart_errors = 0;
2416 s->smart_selftest_count = 0;
2417 if (kind == IDE_CD) {
2418 blk_set_dev_ops(blk, &ide_cd_block_ops, s);
2419 blk_set_guest_block_size(blk, 2048);
2421 if (!blk_is_inserted(s->blk)) {
2422 error_report("Device needs media, but drive is empty");
2425 if (blk_is_read_only(blk)) {
2426 error_report("Can't use a read-only drive");
2429 blk_set_dev_ops(blk, &ide_hd_block_ops, s);
2432 pstrcpy(s->drive_serial_str, sizeof(s->drive_serial_str), serial);
2434 snprintf(s->drive_serial_str, sizeof(s->drive_serial_str),
2435 "QM%05d", s->drive_serial);
2438 pstrcpy(s->drive_model_str, sizeof(s->drive_model_str), model);
2442 strcpy(s->drive_model_str, "QEMU DVD-ROM");
2445 strcpy(s->drive_model_str, "QEMU MICRODRIVE");
2448 strcpy(s->drive_model_str, "QEMU HARDDISK");
2454 pstrcpy(s->version, sizeof(s->version), version);
2456 pstrcpy(s->version, sizeof(s->version), qemu_hw_version());
2460 blk_iostatus_enable(blk);
2464 static void ide_init1(IDEBus *bus, int unit)
2466 static int drive_serial = 1;
2467 IDEState *s = &bus->ifs[unit];
2471 s->drive_serial = drive_serial++;
2472 /* we need at least 2k alignment for accessing CDROMs using O_DIRECT */
2473 s->io_buffer_total_len = IDE_DMA_BUF_SECTORS*512 + 4;
2474 s->io_buffer = qemu_memalign(2048, s->io_buffer_total_len);
2475 memset(s->io_buffer, 0, s->io_buffer_total_len);
2477 s->smart_selftest_data = blk_blockalign(s->blk, 512);
2478 memset(s->smart_selftest_data, 0, 512);
2480 s->sector_write_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
2481 ide_sector_write_timer_cb, s);
2484 static int ide_nop_int(IDEDMA *dma, int x)
2489 static void ide_nop(IDEDMA *dma)
2493 static int32_t ide_nop_int32(IDEDMA *dma, int32_t l)
2498 static const IDEDMAOps ide_dma_nop_ops = {
2499 .prepare_buf = ide_nop_int32,
2500 .restart_dma = ide_nop,
2501 .rw_buf = ide_nop_int,
2504 static void ide_restart_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
2506 s->unit = s->bus->retry_unit;
2507 ide_set_sector(s, s->bus->retry_sector_num);
2508 s->nsector = s->bus->retry_nsector;
2509 s->bus->dma->ops->restart_dma(s->bus->dma);
2510 s->io_buffer_size = 0;
2511 s->dma_cmd = dma_cmd;
2512 ide_start_dma(s, ide_dma_cb);
2515 static void ide_restart_bh(void *opaque)
2517 IDEBus *bus = opaque;
2522 qemu_bh_delete(bus->bh);
2525 error_status = bus->error_status;
2526 if (bus->error_status == 0) {
2530 s = idebus_active_if(bus);
2531 is_read = (bus->error_status & IDE_RETRY_READ) != 0;
2533 /* The error status must be cleared before resubmitting the request: The
2534 * request may fail again, and this case can only be distinguished if the
2535 * called function can set a new error status. */
2536 bus->error_status = 0;
2538 /* The HBA has generically asked to be kicked on retry */
2539 if (error_status & IDE_RETRY_HBA) {
2540 if (s->bus->dma->ops->restart) {
2541 s->bus->dma->ops->restart(s->bus->dma);
2543 } else if (IS_IDE_RETRY_DMA(error_status)) {
2544 if (error_status & IDE_RETRY_TRIM) {
2545 ide_restart_dma(s, IDE_DMA_TRIM);
2547 ide_restart_dma(s, is_read ? IDE_DMA_READ : IDE_DMA_WRITE);
2549 } else if (IS_IDE_RETRY_PIO(error_status)) {
2553 ide_sector_write(s);
2555 } else if (error_status & IDE_RETRY_FLUSH) {
2557 } else if (IS_IDE_RETRY_ATAPI(error_status)) {
2558 assert(s->end_transfer_func == ide_atapi_cmd);
2559 ide_atapi_dma_restart(s);
2565 static void ide_restart_cb(void *opaque, int running, RunState state)
2567 IDEBus *bus = opaque;
2573 bus->bh = qemu_bh_new(ide_restart_bh, bus);
2574 qemu_bh_schedule(bus->bh);
2578 void ide_register_restart_cb(IDEBus *bus)
2580 if (bus->dma->ops->restart_dma) {
2581 qemu_add_vm_change_state_handler(ide_restart_cb, bus);
2585 static IDEDMA ide_dma_nop = {
2586 .ops = &ide_dma_nop_ops,
2590 void ide_init2(IDEBus *bus, qemu_irq irq)
2594 for(i = 0; i < 2; i++) {
2596 ide_reset(&bus->ifs[i]);
2599 bus->dma = &ide_dma_nop;
2602 static const MemoryRegionPortio ide_portio_list[] = {
2603 { 0, 8, 1, .read = ide_ioport_read, .write = ide_ioport_write },
2604 { 0, 1, 2, .read = ide_data_readw, .write = ide_data_writew },
2605 { 0, 1, 4, .read = ide_data_readl, .write = ide_data_writel },
2606 PORTIO_END_OF_LIST(),
2609 static const MemoryRegionPortio ide_portio2_list[] = {
2610 { 0, 1, 1, .read = ide_status_read, .write = ide_cmd_write },
2611 PORTIO_END_OF_LIST(),
2614 void ide_init_ioport(IDEBus *bus, ISADevice *dev, int iobase, int iobase2)
2616 /* ??? Assume only ISA and PCI configurations, and that the PCI-ISA
2617 bridge has been setup properly to always register with ISA. */
2618 isa_register_portio_list(dev, iobase, ide_portio_list, bus, "ide");
2621 isa_register_portio_list(dev, iobase2, ide_portio2_list, bus, "ide");
2625 static bool is_identify_set(void *opaque, int version_id)
2627 IDEState *s = opaque;
2629 return s->identify_set != 0;
2632 static EndTransferFunc* transfer_end_table[] = {
2636 ide_atapi_cmd_reply_end,
2638 ide_dummy_transfer_stop,
2641 static int transfer_end_table_idx(EndTransferFunc *fn)
2645 for (i = 0; i < ARRAY_SIZE(transfer_end_table); i++)
2646 if (transfer_end_table[i] == fn)
2652 static int ide_drive_post_load(void *opaque, int version_id)
2654 IDEState *s = opaque;
2656 if (s->blk && s->identify_set) {
2657 blk_set_enable_write_cache(s->blk, !!(s->identify_data[85] & (1 << 5)));
2662 static int ide_drive_pio_post_load(void *opaque, int version_id)
2664 IDEState *s = opaque;
2666 if (s->end_transfer_fn_idx >= ARRAY_SIZE(transfer_end_table)) {
2669 s->end_transfer_func = transfer_end_table[s->end_transfer_fn_idx];
2670 s->data_ptr = s->io_buffer + s->cur_io_buffer_offset;
2671 s->data_end = s->data_ptr + s->cur_io_buffer_len;
2672 s->atapi_dma = s->feature & 1; /* as per cmd_packet */
2677 static void ide_drive_pio_pre_save(void *opaque)
2679 IDEState *s = opaque;
2682 s->cur_io_buffer_offset = s->data_ptr - s->io_buffer;
2683 s->cur_io_buffer_len = s->data_end - s->data_ptr;
2685 idx = transfer_end_table_idx(s->end_transfer_func);
2687 fprintf(stderr, "%s: invalid end_transfer_func for DRQ_STAT\n",
2689 s->end_transfer_fn_idx = 2;
2691 s->end_transfer_fn_idx = idx;
2695 static bool ide_drive_pio_state_needed(void *opaque)
2697 IDEState *s = opaque;
2699 return ((s->status & DRQ_STAT) != 0)
2700 || (s->bus->error_status & IDE_RETRY_PIO);
2703 static bool ide_tray_state_needed(void *opaque)
2705 IDEState *s = opaque;
2707 return s->tray_open || s->tray_locked;
2710 static bool ide_atapi_gesn_needed(void *opaque)
2712 IDEState *s = opaque;
2714 return s->events.new_media || s->events.eject_request;
2717 static bool ide_error_needed(void *opaque)
2719 IDEBus *bus = opaque;
2721 return (bus->error_status != 0);
2724 /* Fields for GET_EVENT_STATUS_NOTIFICATION ATAPI command */
2725 static const VMStateDescription vmstate_ide_atapi_gesn_state = {
2726 .name ="ide_drive/atapi/gesn_state",
2728 .minimum_version_id = 1,
2729 .needed = ide_atapi_gesn_needed,
2730 .fields = (VMStateField[]) {
2731 VMSTATE_BOOL(events.new_media, IDEState),
2732 VMSTATE_BOOL(events.eject_request, IDEState),
2733 VMSTATE_END_OF_LIST()
2737 static const VMStateDescription vmstate_ide_tray_state = {
2738 .name = "ide_drive/tray_state",
2740 .minimum_version_id = 1,
2741 .needed = ide_tray_state_needed,
2742 .fields = (VMStateField[]) {
2743 VMSTATE_BOOL(tray_open, IDEState),
2744 VMSTATE_BOOL(tray_locked, IDEState),
2745 VMSTATE_END_OF_LIST()
2749 static const VMStateDescription vmstate_ide_drive_pio_state = {
2750 .name = "ide_drive/pio_state",
2752 .minimum_version_id = 1,
2753 .pre_save = ide_drive_pio_pre_save,
2754 .post_load = ide_drive_pio_post_load,
2755 .needed = ide_drive_pio_state_needed,
2756 .fields = (VMStateField[]) {
2757 VMSTATE_INT32(req_nb_sectors, IDEState),
2758 VMSTATE_VARRAY_INT32(io_buffer, IDEState, io_buffer_total_len, 1,
2759 vmstate_info_uint8, uint8_t),
2760 VMSTATE_INT32(cur_io_buffer_offset, IDEState),
2761 VMSTATE_INT32(cur_io_buffer_len, IDEState),
2762 VMSTATE_UINT8(end_transfer_fn_idx, IDEState),
2763 VMSTATE_INT32(elementary_transfer_size, IDEState),
2764 VMSTATE_INT32(packet_transfer_size, IDEState),
2765 VMSTATE_END_OF_LIST()
2769 const VMStateDescription vmstate_ide_drive = {
2770 .name = "ide_drive",
2772 .minimum_version_id = 0,
2773 .post_load = ide_drive_post_load,
2774 .fields = (VMStateField[]) {
2775 VMSTATE_INT32(mult_sectors, IDEState),
2776 VMSTATE_INT32(identify_set, IDEState),
2777 VMSTATE_BUFFER_TEST(identify_data, IDEState, is_identify_set),
2778 VMSTATE_UINT8(feature, IDEState),
2779 VMSTATE_UINT8(error, IDEState),
2780 VMSTATE_UINT32(nsector, IDEState),
2781 VMSTATE_UINT8(sector, IDEState),
2782 VMSTATE_UINT8(lcyl, IDEState),
2783 VMSTATE_UINT8(hcyl, IDEState),
2784 VMSTATE_UINT8(hob_feature, IDEState),
2785 VMSTATE_UINT8(hob_sector, IDEState),
2786 VMSTATE_UINT8(hob_nsector, IDEState),
2787 VMSTATE_UINT8(hob_lcyl, IDEState),
2788 VMSTATE_UINT8(hob_hcyl, IDEState),
2789 VMSTATE_UINT8(select, IDEState),
2790 VMSTATE_UINT8(status, IDEState),
2791 VMSTATE_UINT8(lba48, IDEState),
2792 VMSTATE_UINT8(sense_key, IDEState),
2793 VMSTATE_UINT8(asc, IDEState),
2794 VMSTATE_UINT8_V(cdrom_changed, IDEState, 3),
2795 VMSTATE_END_OF_LIST()
2797 .subsections = (const VMStateDescription*[]) {
2798 &vmstate_ide_drive_pio_state,
2799 &vmstate_ide_tray_state,
2800 &vmstate_ide_atapi_gesn_state,
2805 static const VMStateDescription vmstate_ide_error_status = {
2806 .name ="ide_bus/error",
2808 .minimum_version_id = 1,
2809 .needed = ide_error_needed,
2810 .fields = (VMStateField[]) {
2811 VMSTATE_INT32(error_status, IDEBus),
2812 VMSTATE_INT64_V(retry_sector_num, IDEBus, 2),
2813 VMSTATE_UINT32_V(retry_nsector, IDEBus, 2),
2814 VMSTATE_UINT8_V(retry_unit, IDEBus, 2),
2815 VMSTATE_END_OF_LIST()
2819 const VMStateDescription vmstate_ide_bus = {
2822 .minimum_version_id = 1,
2823 .fields = (VMStateField[]) {
2824 VMSTATE_UINT8(cmd, IDEBus),
2825 VMSTATE_UINT8(unit, IDEBus),
2826 VMSTATE_END_OF_LIST()
2828 .subsections = (const VMStateDescription*[]) {
2829 &vmstate_ide_error_status,
2834 void ide_drive_get(DriveInfo **hd, int n)
2837 int highest_bus = drive_get_max_bus(IF_IDE) + 1;
2838 int max_devs = drive_get_max_devs(IF_IDE);
2839 int n_buses = max_devs ? (n / max_devs) : n;
2842 * Note: The number of actual buses available is not known.
2843 * We compute this based on the size of the DriveInfo* array, n.
2844 * If it is less than max_devs * <num_real_buses>,
2845 * We will stop looking for drives prematurely instead of overfilling
2849 if (highest_bus > n_buses) {
2850 error_report("Too many IDE buses defined (%d > %d)",
2851 highest_bus, n_buses);
2855 for (i = 0; i < n; i++) {
2856 hd[i] = drive_get_by_index(IF_IDE, i);