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_pdiscard(iocb->blk,
427 sector << BDRV_SECTOR_BITS,
428 count << BDRV_SECTOR_BITS,
429 ide_issue_trim_cb, opaque);
442 qemu_bh_schedule(iocb->bh);
446 BlockAIOCB *ide_issue_trim(
447 int64_t offset, QEMUIOVector *qiov,
448 BlockCompletionFunc *cb, void *cb_opaque, void *opaque)
450 BlockBackend *blk = opaque;
453 iocb = blk_aio_get(&trim_aiocb_info, blk, cb, cb_opaque);
455 iocb->bh = qemu_bh_new(ide_trim_bh_cb, iocb);
460 ide_issue_trim_cb(iocb, 0);
461 return &iocb->common;
464 void ide_abort_command(IDEState *s)
466 ide_transfer_stop(s);
467 s->status = READY_STAT | ERR_STAT;
471 static void ide_set_retry(IDEState *s)
473 s->bus->retry_unit = s->unit;
474 s->bus->retry_sector_num = ide_get_sector(s);
475 s->bus->retry_nsector = s->nsector;
478 static void ide_clear_retry(IDEState *s)
480 s->bus->retry_unit = -1;
481 s->bus->retry_sector_num = 0;
482 s->bus->retry_nsector = 0;
485 /* prepare data transfer and tell what to do after */
486 void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
487 EndTransferFunc *end_transfer_func)
489 s->end_transfer_func = end_transfer_func;
491 s->data_end = buf + size;
493 if (!(s->status & ERR_STAT)) {
494 s->status |= DRQ_STAT;
496 if (s->bus->dma->ops->start_transfer) {
497 s->bus->dma->ops->start_transfer(s->bus->dma);
501 static void ide_cmd_done(IDEState *s)
503 if (s->bus->dma->ops->cmd_done) {
504 s->bus->dma->ops->cmd_done(s->bus->dma);
508 static void ide_transfer_halt(IDEState *s,
509 void(*end_transfer_func)(IDEState *),
512 s->end_transfer_func = end_transfer_func;
513 s->data_ptr = s->io_buffer;
514 s->data_end = s->io_buffer;
515 s->status &= ~DRQ_STAT;
521 void ide_transfer_stop(IDEState *s)
523 ide_transfer_halt(s, ide_transfer_stop, true);
526 static void ide_transfer_cancel(IDEState *s)
528 ide_transfer_halt(s, ide_transfer_cancel, false);
531 int64_t ide_get_sector(IDEState *s)
534 if (s->select & 0x40) {
537 sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) |
538 (s->lcyl << 8) | s->sector;
540 sector_num = ((int64_t)s->hob_hcyl << 40) |
541 ((int64_t) s->hob_lcyl << 32) |
542 ((int64_t) s->hob_sector << 24) |
543 ((int64_t) s->hcyl << 16) |
544 ((int64_t) s->lcyl << 8) | s->sector;
547 sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
548 (s->select & 0x0f) * s->sectors + (s->sector - 1);
553 void ide_set_sector(IDEState *s, int64_t sector_num)
556 if (s->select & 0x40) {
558 s->select = (s->select & 0xf0) | (sector_num >> 24);
559 s->hcyl = (sector_num >> 16);
560 s->lcyl = (sector_num >> 8);
561 s->sector = (sector_num);
563 s->sector = sector_num;
564 s->lcyl = sector_num >> 8;
565 s->hcyl = sector_num >> 16;
566 s->hob_sector = sector_num >> 24;
567 s->hob_lcyl = sector_num >> 32;
568 s->hob_hcyl = sector_num >> 40;
571 cyl = sector_num / (s->heads * s->sectors);
572 r = sector_num % (s->heads * s->sectors);
575 s->select = (s->select & 0xf0) | ((r / s->sectors) & 0x0f);
576 s->sector = (r % s->sectors) + 1;
580 static void ide_rw_error(IDEState *s) {
581 ide_abort_command(s);
585 static bool ide_sect_range_ok(IDEState *s,
586 uint64_t sector, uint64_t nb_sectors)
588 uint64_t total_sectors;
590 blk_get_geometry(s->blk, &total_sectors);
591 if (sector > total_sectors || nb_sectors > total_sectors - sector) {
597 static void ide_buffered_readv_cb(void *opaque, int ret)
599 IDEBufferedRequest *req = opaque;
600 if (!req->orphaned) {
602 qemu_iovec_from_buf(req->original_qiov, 0, req->iov.iov_base,
603 req->original_qiov->size);
605 req->original_cb(req->original_opaque, ret);
607 QLIST_REMOVE(req, list);
608 qemu_vfree(req->iov.iov_base);
612 #define MAX_BUFFERED_REQS 16
614 BlockAIOCB *ide_buffered_readv(IDEState *s, int64_t sector_num,
615 QEMUIOVector *iov, int nb_sectors,
616 BlockCompletionFunc *cb, void *opaque)
619 IDEBufferedRequest *req;
622 QLIST_FOREACH(req, &s->buffered_requests, list) {
625 if (c > MAX_BUFFERED_REQS) {
626 return blk_abort_aio_request(s->blk, cb, opaque, -EIO);
629 req = g_new0(IDEBufferedRequest, 1);
630 req->original_qiov = iov;
631 req->original_cb = cb;
632 req->original_opaque = opaque;
633 req->iov.iov_base = qemu_blockalign(blk_bs(s->blk), iov->size);
634 req->iov.iov_len = iov->size;
635 qemu_iovec_init_external(&req->qiov, &req->iov, 1);
637 aioreq = blk_aio_preadv(s->blk, sector_num << BDRV_SECTOR_BITS,
638 &req->qiov, 0, ide_buffered_readv_cb, req);
640 QLIST_INSERT_HEAD(&s->buffered_requests, req, list);
645 * Cancel all pending DMA requests.
646 * Any buffered DMA requests are instantly canceled,
647 * but any pending unbuffered DMA requests must be waited on.
649 void ide_cancel_dma_sync(IDEState *s)
651 IDEBufferedRequest *req;
653 /* First invoke the callbacks of all buffered requests
654 * and flag those requests as orphaned. Ideally there
655 * are no unbuffered (Scatter Gather DMA Requests or
656 * write requests) pending and we can avoid to drain. */
657 QLIST_FOREACH(req, &s->buffered_requests, list) {
658 if (!req->orphaned) {
660 printf("%s: invoking cb %p of buffered request %p with"
661 " -ECANCELED\n", __func__, req->original_cb, req);
663 req->original_cb(req->original_opaque, -ECANCELED);
665 req->orphaned = true;
669 * We can't cancel Scatter Gather DMA in the middle of the
670 * operation or a partial (not full) DMA transfer would reach
671 * the storage so we wait for completion instead (we beahve
672 * like if the DMA was completed by the time the guest trying
673 * to cancel dma with bmdma_cmd_writeb with BM_CMD_START not
676 * In the future we'll be able to safely cancel the I/O if the
677 * whole DMA operation will be submitted to disk with a single
678 * aio operation with preadv/pwritev.
680 if (s->bus->dma->aiocb) {
682 printf("%s: draining all remaining requests", __func__);
685 assert(s->bus->dma->aiocb == NULL);
689 static void ide_sector_read(IDEState *s);
691 static void ide_sector_read_cb(void *opaque, int ret)
693 IDEState *s = opaque;
697 s->status &= ~BUSY_STAT;
699 if (ret == -ECANCELED) {
703 if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO |
709 block_acct_done(blk_get_stats(s->blk), &s->acct);
712 if (n > s->req_nb_sectors) {
713 n = s->req_nb_sectors;
716 ide_set_sector(s, ide_get_sector(s) + n);
718 /* Allow the guest to read the io_buffer */
719 ide_transfer_start(s, s->io_buffer, n * BDRV_SECTOR_SIZE, ide_sector_read);
723 static void ide_sector_read(IDEState *s)
728 s->status = READY_STAT | SEEK_STAT;
729 s->error = 0; /* not needed by IDE spec, but needed by Windows */
730 sector_num = ide_get_sector(s);
734 ide_transfer_stop(s);
738 s->status |= BUSY_STAT;
740 if (n > s->req_nb_sectors) {
741 n = s->req_nb_sectors;
744 #if defined(DEBUG_IDE)
745 printf("sector=%" PRId64 "\n", sector_num);
748 if (!ide_sect_range_ok(s, sector_num, n)) {
750 block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_READ);
754 s->iov.iov_base = s->io_buffer;
755 s->iov.iov_len = n * BDRV_SECTOR_SIZE;
756 qemu_iovec_init_external(&s->qiov, &s->iov, 1);
758 block_acct_start(blk_get_stats(s->blk), &s->acct,
759 n * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
760 s->pio_aiocb = ide_buffered_readv(s, sector_num, &s->qiov, n,
761 ide_sector_read_cb, s);
764 void dma_buf_commit(IDEState *s, uint32_t tx_bytes)
766 if (s->bus->dma->ops->commit_buf) {
767 s->bus->dma->ops->commit_buf(s->bus->dma, tx_bytes);
769 s->io_buffer_offset += tx_bytes;
770 qemu_sglist_destroy(&s->sg);
773 void ide_set_inactive(IDEState *s, bool more)
775 s->bus->dma->aiocb = NULL;
777 if (s->bus->dma->ops->set_inactive) {
778 s->bus->dma->ops->set_inactive(s->bus->dma, more);
783 void ide_dma_error(IDEState *s)
785 dma_buf_commit(s, 0);
786 ide_abort_command(s);
787 ide_set_inactive(s, false);
791 int ide_handle_rw_error(IDEState *s, int error, int op)
793 bool is_read = (op & IDE_RETRY_READ) != 0;
794 BlockErrorAction action = blk_get_error_action(s->blk, is_read, error);
796 if (action == BLOCK_ERROR_ACTION_STOP) {
797 assert(s->bus->retry_unit == s->unit);
798 s->bus->error_status = op;
799 } else if (action == BLOCK_ERROR_ACTION_REPORT) {
800 block_acct_failed(blk_get_stats(s->blk), &s->acct);
801 if (IS_IDE_RETRY_DMA(op)) {
803 } else if (IS_IDE_RETRY_ATAPI(op)) {
804 ide_atapi_io_error(s, -error);
809 blk_error_action(s->blk, action, is_read, error);
810 return action != BLOCK_ERROR_ACTION_IGNORE;
813 static void ide_dma_cb(void *opaque, int ret)
815 IDEState *s = opaque;
819 bool stay_active = false;
821 if (ret == -ECANCELED) {
825 if (ide_handle_rw_error(s, -ret, ide_dma_cmd_to_retry(s->dma_cmd))) {
830 n = s->io_buffer_size >> 9;
831 if (n > s->nsector) {
832 /* The PRDs were longer than needed for this request. Shorten them so
833 * we don't get a negative remainder. The Active bit must remain set
834 * after the request completes. */
839 sector_num = ide_get_sector(s);
841 assert(n * 512 == s->sg.size);
842 dma_buf_commit(s, s->sg.size);
844 ide_set_sector(s, sector_num);
848 /* end of transfer ? */
849 if (s->nsector == 0) {
850 s->status = READY_STAT | SEEK_STAT;
855 /* launch next transfer */
857 s->io_buffer_index = 0;
858 s->io_buffer_size = n * 512;
859 if (s->bus->dma->ops->prepare_buf(s->bus->dma, s->io_buffer_size) < 512) {
860 /* The PRDs were too short. Reset the Active bit, but don't raise an
862 s->status = READY_STAT | SEEK_STAT;
863 dma_buf_commit(s, 0);
868 printf("ide_dma_cb: sector_num=%" PRId64 " n=%d, cmd_cmd=%d\n",
869 sector_num, n, s->dma_cmd);
872 if ((s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) &&
873 !ide_sect_range_ok(s, sector_num, n)) {
875 block_acct_invalid(blk_get_stats(s->blk), s->acct.type);
879 offset = sector_num << BDRV_SECTOR_BITS;
880 switch (s->dma_cmd) {
882 s->bus->dma->aiocb = dma_blk_read(s->blk, &s->sg, offset,
886 s->bus->dma->aiocb = dma_blk_write(s->blk, &s->sg, offset,
890 s->bus->dma->aiocb = dma_blk_io(blk_get_aio_context(s->blk),
892 ide_issue_trim, s->blk, ide_dma_cb, s,
893 DMA_DIRECTION_TO_DEVICE);
901 if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) {
902 block_acct_done(blk_get_stats(s->blk), &s->acct);
904 ide_set_inactive(s, stay_active);
907 static void ide_sector_start_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
909 s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT;
910 s->io_buffer_size = 0;
911 s->dma_cmd = dma_cmd;
915 block_acct_start(blk_get_stats(s->blk), &s->acct,
916 s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
919 block_acct_start(blk_get_stats(s->blk), &s->acct,
920 s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
926 ide_start_dma(s, ide_dma_cb);
929 void ide_start_dma(IDEState *s, BlockCompletionFunc *cb)
931 s->io_buffer_index = 0;
933 if (s->bus->dma->ops->start_dma) {
934 s->bus->dma->ops->start_dma(s->bus->dma, s, cb);
938 static void ide_sector_write(IDEState *s);
940 static void ide_sector_write_timer_cb(void *opaque)
942 IDEState *s = opaque;
946 static void ide_sector_write_cb(void *opaque, int ret)
948 IDEState *s = opaque;
951 if (ret == -ECANCELED) {
956 s->status &= ~BUSY_STAT;
959 if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO)) {
964 block_acct_done(blk_get_stats(s->blk), &s->acct);
967 if (n > s->req_nb_sectors) {
968 n = s->req_nb_sectors;
972 ide_set_sector(s, ide_get_sector(s) + n);
973 if (s->nsector == 0) {
974 /* no more sectors to write */
975 ide_transfer_stop(s);
978 if (n1 > s->req_nb_sectors) {
979 n1 = s->req_nb_sectors;
981 ide_transfer_start(s, s->io_buffer, n1 * BDRV_SECTOR_SIZE,
985 if (win2k_install_hack && ((++s->irq_count % 16) == 0)) {
986 /* It seems there is a bug in the Windows 2000 installer HDD
987 IDE driver which fills the disk with empty logs when the
988 IDE write IRQ comes too early. This hack tries to correct
989 that at the expense of slower write performances. Use this
990 option _only_ to install Windows 2000. You must disable it
992 timer_mod(s->sector_write_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
993 (NANOSECONDS_PER_SECOND / 1000));
999 static void ide_sector_write(IDEState *s)
1004 s->status = READY_STAT | SEEK_STAT | BUSY_STAT;
1005 sector_num = ide_get_sector(s);
1006 #if defined(DEBUG_IDE)
1007 printf("sector=%" PRId64 "\n", sector_num);
1010 if (n > s->req_nb_sectors) {
1011 n = s->req_nb_sectors;
1014 if (!ide_sect_range_ok(s, sector_num, n)) {
1016 block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_WRITE);
1020 s->iov.iov_base = s->io_buffer;
1021 s->iov.iov_len = n * BDRV_SECTOR_SIZE;
1022 qemu_iovec_init_external(&s->qiov, &s->iov, 1);
1024 block_acct_start(blk_get_stats(s->blk), &s->acct,
1025 n * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
1026 s->pio_aiocb = blk_aio_pwritev(s->blk, sector_num << BDRV_SECTOR_BITS,
1027 &s->qiov, 0, ide_sector_write_cb, s);
1030 static void ide_flush_cb(void *opaque, int ret)
1032 IDEState *s = opaque;
1034 s->pio_aiocb = NULL;
1036 if (ret == -ECANCELED) {
1040 /* XXX: What sector number to set here? */
1041 if (ide_handle_rw_error(s, -ret, IDE_RETRY_FLUSH)) {
1047 block_acct_done(blk_get_stats(s->blk), &s->acct);
1049 s->status = READY_STAT | SEEK_STAT;
1051 ide_set_irq(s->bus);
1054 static void ide_flush_cache(IDEState *s)
1056 if (s->blk == NULL) {
1061 s->status |= BUSY_STAT;
1063 block_acct_start(blk_get_stats(s->blk), &s->acct, 0, BLOCK_ACCT_FLUSH);
1064 s->pio_aiocb = blk_aio_flush(s->blk, ide_flush_cb, s);
1067 static void ide_cfata_metadata_inquiry(IDEState *s)
1072 p = (uint16_t *) s->io_buffer;
1073 memset(p, 0, 0x200);
1074 spd = ((s->mdata_size - 1) >> 9) + 1;
1076 put_le16(p + 0, 0x0001); /* Data format revision */
1077 put_le16(p + 1, 0x0000); /* Media property: silicon */
1078 put_le16(p + 2, s->media_changed); /* Media status */
1079 put_le16(p + 3, s->mdata_size & 0xffff); /* Capacity in bytes (low) */
1080 put_le16(p + 4, s->mdata_size >> 16); /* Capacity in bytes (high) */
1081 put_le16(p + 5, spd & 0xffff); /* Sectors per device (low) */
1082 put_le16(p + 6, spd >> 16); /* Sectors per device (high) */
1085 static void ide_cfata_metadata_read(IDEState *s)
1089 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
1090 s->status = ERR_STAT;
1091 s->error = ABRT_ERR;
1095 p = (uint16_t *) s->io_buffer;
1096 memset(p, 0, 0x200);
1098 put_le16(p + 0, s->media_changed); /* Media status */
1099 memcpy(p + 1, s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
1100 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
1101 s->nsector << 9), 0x200 - 2));
1104 static void ide_cfata_metadata_write(IDEState *s)
1106 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
1107 s->status = ERR_STAT;
1108 s->error = ABRT_ERR;
1112 s->media_changed = 0;
1114 memcpy(s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
1116 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
1117 s->nsector << 9), 0x200 - 2));
1120 /* called when the inserted state of the media has changed */
1121 static void ide_cd_change_cb(void *opaque, bool load)
1123 IDEState *s = opaque;
1124 uint64_t nb_sectors;
1126 s->tray_open = !load;
1127 blk_get_geometry(s->blk, &nb_sectors);
1128 s->nb_sectors = nb_sectors;
1131 * First indicate to the guest that a CD has been removed. That's
1132 * done on the next command the guest sends us.
1134 * Then we set UNIT_ATTENTION, by which the guest will
1135 * detect a new CD in the drive. See ide_atapi_cmd() for details.
1137 s->cdrom_changed = 1;
1138 s->events.new_media = true;
1139 s->events.eject_request = false;
1140 ide_set_irq(s->bus);
1143 static void ide_cd_eject_request_cb(void *opaque, bool force)
1145 IDEState *s = opaque;
1147 s->events.eject_request = true;
1149 s->tray_locked = false;
1151 ide_set_irq(s->bus);
1154 static void ide_cmd_lba48_transform(IDEState *s, int lba48)
1158 /* handle the 'magic' 0 nsector count conversion here. to avoid
1159 * fiddling with the rest of the read logic, we just store the
1160 * full sector count in ->nsector and ignore ->hob_nsector from now
1166 if (!s->nsector && !s->hob_nsector)
1169 int lo = s->nsector;
1170 int hi = s->hob_nsector;
1172 s->nsector = (hi << 8) | lo;
1177 static void ide_clear_hob(IDEBus *bus)
1179 /* any write clears HOB high bit of device control register */
1180 bus->ifs[0].select &= ~(1 << 7);
1181 bus->ifs[1].select &= ~(1 << 7);
1184 void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
1186 IDEBus *bus = opaque;
1189 printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
1194 /* ignore writes to command block while busy with previous command */
1195 if (addr != 7 && (idebus_active_if(bus)->status & (BUSY_STAT|DRQ_STAT)))
1203 /* NOTE: data is written to the two drives */
1204 bus->ifs[0].hob_feature = bus->ifs[0].feature;
1205 bus->ifs[1].hob_feature = bus->ifs[1].feature;
1206 bus->ifs[0].feature = val;
1207 bus->ifs[1].feature = val;
1211 bus->ifs[0].hob_nsector = bus->ifs[0].nsector;
1212 bus->ifs[1].hob_nsector = bus->ifs[1].nsector;
1213 bus->ifs[0].nsector = val;
1214 bus->ifs[1].nsector = val;
1218 bus->ifs[0].hob_sector = bus->ifs[0].sector;
1219 bus->ifs[1].hob_sector = bus->ifs[1].sector;
1220 bus->ifs[0].sector = val;
1221 bus->ifs[1].sector = val;
1225 bus->ifs[0].hob_lcyl = bus->ifs[0].lcyl;
1226 bus->ifs[1].hob_lcyl = bus->ifs[1].lcyl;
1227 bus->ifs[0].lcyl = val;
1228 bus->ifs[1].lcyl = val;
1232 bus->ifs[0].hob_hcyl = bus->ifs[0].hcyl;
1233 bus->ifs[1].hob_hcyl = bus->ifs[1].hcyl;
1234 bus->ifs[0].hcyl = val;
1235 bus->ifs[1].hcyl = val;
1238 /* FIXME: HOB readback uses bit 7 */
1239 bus->ifs[0].select = (val & ~0x10) | 0xa0;
1240 bus->ifs[1].select = (val | 0x10) | 0xa0;
1242 bus->unit = (val >> 4) & 1;
1247 ide_exec_cmd(bus, val);
1252 static void ide_reset(IDEState *s)
1255 printf("ide: reset\n");
1259 blk_aio_cancel(s->pio_aiocb);
1260 s->pio_aiocb = NULL;
1263 if (s->drive_kind == IDE_CFATA)
1264 s->mult_sectors = 0;
1266 s->mult_sectors = MAX_MULT_SECTORS;
1283 s->status = READY_STAT | SEEK_STAT;
1287 /* ATAPI specific */
1290 s->cdrom_changed = 0;
1291 s->packet_transfer_size = 0;
1292 s->elementary_transfer_size = 0;
1293 s->io_buffer_index = 0;
1294 s->cd_sector_size = 0;
1299 s->io_buffer_size = 0;
1300 s->req_nb_sectors = 0;
1302 ide_set_signature(s);
1303 /* init the transfer handler so that 0xffff is returned on data
1305 s->end_transfer_func = ide_dummy_transfer_stop;
1306 ide_dummy_transfer_stop(s);
1307 s->media_changed = 0;
1310 static bool cmd_nop(IDEState *s, uint8_t cmd)
1315 static bool cmd_device_reset(IDEState *s, uint8_t cmd)
1317 /* Halt PIO (in the DRQ phase), then DMA */
1318 ide_transfer_cancel(s);
1319 ide_cancel_dma_sync(s);
1321 /* Reset any PIO commands, reset signature, etc */
1324 /* RESET: ATA8-ACS3 7.10.4 "Normal Outputs";
1325 * ATA8-ACS3 Table 184 "Device Signatures for Normal Output" */
1328 /* Do not overwrite status register */
1332 static bool cmd_data_set_management(IDEState *s, uint8_t cmd)
1334 switch (s->feature) {
1337 ide_sector_start_dma(s, IDE_DMA_TRIM);
1343 ide_abort_command(s);
1347 static bool cmd_identify(IDEState *s, uint8_t cmd)
1349 if (s->blk && s->drive_kind != IDE_CD) {
1350 if (s->drive_kind != IDE_CFATA) {
1353 ide_cfata_identify(s);
1355 s->status = READY_STAT | SEEK_STAT;
1356 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1357 ide_set_irq(s->bus);
1360 if (s->drive_kind == IDE_CD) {
1361 ide_set_signature(s);
1363 ide_abort_command(s);
1369 static bool cmd_verify(IDEState *s, uint8_t cmd)
1371 bool lba48 = (cmd == WIN_VERIFY_EXT);
1373 /* do sector number check ? */
1374 ide_cmd_lba48_transform(s, lba48);
1379 static bool cmd_set_multiple_mode(IDEState *s, uint8_t cmd)
1381 if (s->drive_kind == IDE_CFATA && s->nsector == 0) {
1382 /* Disable Read and Write Multiple */
1383 s->mult_sectors = 0;
1384 } else if ((s->nsector & 0xff) != 0 &&
1385 ((s->nsector & 0xff) > MAX_MULT_SECTORS ||
1386 (s->nsector & (s->nsector - 1)) != 0)) {
1387 ide_abort_command(s);
1389 s->mult_sectors = s->nsector & 0xff;
1395 static bool cmd_read_multiple(IDEState *s, uint8_t cmd)
1397 bool lba48 = (cmd == WIN_MULTREAD_EXT);
1399 if (!s->blk || !s->mult_sectors) {
1400 ide_abort_command(s);
1404 ide_cmd_lba48_transform(s, lba48);
1405 s->req_nb_sectors = s->mult_sectors;
1410 static bool cmd_write_multiple(IDEState *s, uint8_t cmd)
1412 bool lba48 = (cmd == WIN_MULTWRITE_EXT);
1415 if (!s->blk || !s->mult_sectors) {
1416 ide_abort_command(s);
1420 ide_cmd_lba48_transform(s, lba48);
1422 s->req_nb_sectors = s->mult_sectors;
1423 n = MIN(s->nsector, s->req_nb_sectors);
1425 s->status = SEEK_STAT | READY_STAT;
1426 ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
1428 s->media_changed = 1;
1433 static bool cmd_read_pio(IDEState *s, uint8_t cmd)
1435 bool lba48 = (cmd == WIN_READ_EXT);
1437 if (s->drive_kind == IDE_CD) {
1438 ide_set_signature(s); /* odd, but ATA4 8.27.5.2 requires it */
1439 ide_abort_command(s);
1444 ide_abort_command(s);
1448 ide_cmd_lba48_transform(s, lba48);
1449 s->req_nb_sectors = 1;
1455 static bool cmd_write_pio(IDEState *s, uint8_t cmd)
1457 bool lba48 = (cmd == WIN_WRITE_EXT);
1460 ide_abort_command(s);
1464 ide_cmd_lba48_transform(s, lba48);
1466 s->req_nb_sectors = 1;
1467 s->status = SEEK_STAT | READY_STAT;
1468 ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
1470 s->media_changed = 1;
1475 static bool cmd_read_dma(IDEState *s, uint8_t cmd)
1477 bool lba48 = (cmd == WIN_READDMA_EXT);
1480 ide_abort_command(s);
1484 ide_cmd_lba48_transform(s, lba48);
1485 ide_sector_start_dma(s, IDE_DMA_READ);
1490 static bool cmd_write_dma(IDEState *s, uint8_t cmd)
1492 bool lba48 = (cmd == WIN_WRITEDMA_EXT);
1495 ide_abort_command(s);
1499 ide_cmd_lba48_transform(s, lba48);
1500 ide_sector_start_dma(s, IDE_DMA_WRITE);
1502 s->media_changed = 1;
1507 static bool cmd_flush_cache(IDEState *s, uint8_t cmd)
1513 static bool cmd_seek(IDEState *s, uint8_t cmd)
1515 /* XXX: Check that seek is within bounds */
1519 static bool cmd_read_native_max(IDEState *s, uint8_t cmd)
1521 bool lba48 = (cmd == WIN_READ_NATIVE_MAX_EXT);
1523 /* Refuse if no sectors are addressable (e.g. medium not inserted) */
1524 if (s->nb_sectors == 0) {
1525 ide_abort_command(s);
1529 ide_cmd_lba48_transform(s, lba48);
1530 ide_set_sector(s, s->nb_sectors - 1);
1535 static bool cmd_check_power_mode(IDEState *s, uint8_t cmd)
1537 s->nsector = 0xff; /* device active or idle */
1541 static bool cmd_set_features(IDEState *s, uint8_t cmd)
1543 uint16_t *identify_data;
1546 ide_abort_command(s);
1550 /* XXX: valid for CDROM ? */
1551 switch (s->feature) {
1552 case 0x02: /* write cache enable */
1553 blk_set_enable_write_cache(s->blk, true);
1554 identify_data = (uint16_t *)s->identify_data;
1555 put_le16(identify_data + 85, (1 << 14) | (1 << 5) | 1);
1557 case 0x82: /* write cache disable */
1558 blk_set_enable_write_cache(s->blk, false);
1559 identify_data = (uint16_t *)s->identify_data;
1560 put_le16(identify_data + 85, (1 << 14) | 1);
1563 case 0xcc: /* reverting to power-on defaults enable */
1564 case 0x66: /* reverting to power-on defaults disable */
1565 case 0xaa: /* read look-ahead enable */
1566 case 0x55: /* read look-ahead disable */
1567 case 0x05: /* set advanced power management mode */
1568 case 0x85: /* disable advanced power management mode */
1569 case 0x69: /* NOP */
1570 case 0x67: /* NOP */
1571 case 0x96: /* NOP */
1572 case 0x9a: /* NOP */
1573 case 0x42: /* enable Automatic Acoustic Mode */
1574 case 0xc2: /* disable Automatic Acoustic Mode */
1576 case 0x03: /* set transfer mode */
1578 uint8_t val = s->nsector & 0x07;
1579 identify_data = (uint16_t *)s->identify_data;
1581 switch (s->nsector >> 3) {
1582 case 0x00: /* pio default */
1583 case 0x01: /* pio mode */
1584 put_le16(identify_data + 62, 0x07);
1585 put_le16(identify_data + 63, 0x07);
1586 put_le16(identify_data + 88, 0x3f);
1588 case 0x02: /* sigle word dma mode*/
1589 put_le16(identify_data + 62, 0x07 | (1 << (val + 8)));
1590 put_le16(identify_data + 63, 0x07);
1591 put_le16(identify_data + 88, 0x3f);
1593 case 0x04: /* mdma mode */
1594 put_le16(identify_data + 62, 0x07);
1595 put_le16(identify_data + 63, 0x07 | (1 << (val + 8)));
1596 put_le16(identify_data + 88, 0x3f);
1598 case 0x08: /* udma mode */
1599 put_le16(identify_data + 62, 0x07);
1600 put_le16(identify_data + 63, 0x07);
1601 put_le16(identify_data + 88, 0x3f | (1 << (val + 8)));
1611 ide_abort_command(s);
1616 /*** ATAPI commands ***/
1618 static bool cmd_identify_packet(IDEState *s, uint8_t cmd)
1620 ide_atapi_identify(s);
1621 s->status = READY_STAT | SEEK_STAT;
1622 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1623 ide_set_irq(s->bus);
1627 static bool cmd_exec_dev_diagnostic(IDEState *s, uint8_t cmd)
1629 ide_set_signature(s);
1631 if (s->drive_kind == IDE_CD) {
1632 s->status = 0; /* ATAPI spec (v6) section 9.10 defines packet
1633 * devices to return a clear status register
1634 * with READY_STAT *not* set. */
1637 s->status = READY_STAT | SEEK_STAT;
1638 /* The bits of the error register are not as usual for this command!
1639 * They are part of the regular output (this is why ERR_STAT isn't set)
1640 * Device 0 passed, Device 1 passed or not present. */
1642 ide_set_irq(s->bus);
1648 static bool cmd_packet(IDEState *s, uint8_t cmd)
1650 /* overlapping commands not supported */
1651 if (s->feature & 0x02) {
1652 ide_abort_command(s);
1656 s->status = READY_STAT | SEEK_STAT;
1657 s->atapi_dma = s->feature & 1;
1659 s->dma_cmd = IDE_DMA_ATAPI;
1662 ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
1668 /*** CF-ATA commands ***/
1670 static bool cmd_cfa_req_ext_error_code(IDEState *s, uint8_t cmd)
1672 s->error = 0x09; /* miscellaneous error */
1673 s->status = READY_STAT | SEEK_STAT;
1674 ide_set_irq(s->bus);
1679 static bool cmd_cfa_erase_sectors(IDEState *s, uint8_t cmd)
1681 /* WIN_SECURITY_FREEZE_LOCK has the same ID as CFA_WEAR_LEVEL and is
1682 * required for Windows 8 to work with AHCI */
1684 if (cmd == CFA_WEAR_LEVEL) {
1688 if (cmd == CFA_ERASE_SECTORS) {
1689 s->media_changed = 1;
1695 static bool cmd_cfa_translate_sector(IDEState *s, uint8_t cmd)
1697 s->status = READY_STAT | SEEK_STAT;
1699 memset(s->io_buffer, 0, 0x200);
1700 s->io_buffer[0x00] = s->hcyl; /* Cyl MSB */
1701 s->io_buffer[0x01] = s->lcyl; /* Cyl LSB */
1702 s->io_buffer[0x02] = s->select; /* Head */
1703 s->io_buffer[0x03] = s->sector; /* Sector */
1704 s->io_buffer[0x04] = ide_get_sector(s) >> 16; /* LBA MSB */
1705 s->io_buffer[0x05] = ide_get_sector(s) >> 8; /* LBA */
1706 s->io_buffer[0x06] = ide_get_sector(s) >> 0; /* LBA LSB */
1707 s->io_buffer[0x13] = 0x00; /* Erase flag */
1708 s->io_buffer[0x18] = 0x00; /* Hot count */
1709 s->io_buffer[0x19] = 0x00; /* Hot count */
1710 s->io_buffer[0x1a] = 0x01; /* Hot count */
1712 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1713 ide_set_irq(s->bus);
1718 static bool cmd_cfa_access_metadata_storage(IDEState *s, uint8_t cmd)
1720 switch (s->feature) {
1721 case 0x02: /* Inquiry Metadata Storage */
1722 ide_cfata_metadata_inquiry(s);
1724 case 0x03: /* Read Metadata Storage */
1725 ide_cfata_metadata_read(s);
1727 case 0x04: /* Write Metadata Storage */
1728 ide_cfata_metadata_write(s);
1731 ide_abort_command(s);
1735 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1736 s->status = 0x00; /* NOTE: READY is _not_ set */
1737 ide_set_irq(s->bus);
1742 static bool cmd_ibm_sense_condition(IDEState *s, uint8_t cmd)
1744 switch (s->feature) {
1745 case 0x01: /* sense temperature in device */
1746 s->nsector = 0x50; /* +20 C */
1749 ide_abort_command(s);
1757 /*** SMART commands ***/
1759 static bool cmd_smart(IDEState *s, uint8_t cmd)
1763 if (s->hcyl != 0xc2 || s->lcyl != 0x4f) {
1767 if (!s->smart_enabled && s->feature != SMART_ENABLE) {
1771 switch (s->feature) {
1773 s->smart_enabled = 0;
1777 s->smart_enabled = 1;
1780 case SMART_ATTR_AUTOSAVE:
1781 switch (s->sector) {
1783 s->smart_autosave = 0;
1786 s->smart_autosave = 1;
1794 if (!s->smart_errors) {
1803 case SMART_READ_THRESH:
1804 memset(s->io_buffer, 0, 0x200);
1805 s->io_buffer[0] = 0x01; /* smart struct version */
1807 for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
1808 s->io_buffer[2 + 0 + (n * 12)] = smart_attributes[n][0];
1809 s->io_buffer[2 + 1 + (n * 12)] = smart_attributes[n][11];
1813 for (n = 0; n < 511; n++) {
1814 s->io_buffer[511] += s->io_buffer[n];
1816 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1818 s->status = READY_STAT | SEEK_STAT;
1819 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1820 ide_set_irq(s->bus);
1823 case SMART_READ_DATA:
1824 memset(s->io_buffer, 0, 0x200);
1825 s->io_buffer[0] = 0x01; /* smart struct version */
1827 for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
1829 for (i = 0; i < 11; i++) {
1830 s->io_buffer[2 + i + (n * 12)] = smart_attributes[n][i];
1834 s->io_buffer[362] = 0x02 | (s->smart_autosave ? 0x80 : 0x00);
1835 if (s->smart_selftest_count == 0) {
1836 s->io_buffer[363] = 0;
1839 s->smart_selftest_data[3 +
1840 (s->smart_selftest_count - 1) *
1843 s->io_buffer[364] = 0x20;
1844 s->io_buffer[365] = 0x01;
1845 /* offline data collection capacity: execute + self-test*/
1846 s->io_buffer[367] = (1 << 4 | 1 << 3 | 1);
1847 s->io_buffer[368] = 0x03; /* smart capability (1) */
1848 s->io_buffer[369] = 0x00; /* smart capability (2) */
1849 s->io_buffer[370] = 0x01; /* error logging supported */
1850 s->io_buffer[372] = 0x02; /* minutes for poll short test */
1851 s->io_buffer[373] = 0x36; /* minutes for poll ext test */
1852 s->io_buffer[374] = 0x01; /* minutes for poll conveyance */
1854 for (n = 0; n < 511; n++) {
1855 s->io_buffer[511] += s->io_buffer[n];
1857 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1859 s->status = READY_STAT | SEEK_STAT;
1860 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1861 ide_set_irq(s->bus);
1864 case SMART_READ_LOG:
1865 switch (s->sector) {
1866 case 0x01: /* summary smart error log */
1867 memset(s->io_buffer, 0, 0x200);
1868 s->io_buffer[0] = 0x01;
1869 s->io_buffer[1] = 0x00; /* no error entries */
1870 s->io_buffer[452] = s->smart_errors & 0xff;
1871 s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8;
1873 for (n = 0; n < 511; n++) {
1874 s->io_buffer[511] += s->io_buffer[n];
1876 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1878 case 0x06: /* smart self test log */
1879 memset(s->io_buffer, 0, 0x200);
1880 s->io_buffer[0] = 0x01;
1881 if (s->smart_selftest_count == 0) {
1882 s->io_buffer[508] = 0;
1884 s->io_buffer[508] = s->smart_selftest_count;
1885 for (n = 2; n < 506; n++) {
1886 s->io_buffer[n] = s->smart_selftest_data[n];
1890 for (n = 0; n < 511; n++) {
1891 s->io_buffer[511] += s->io_buffer[n];
1893 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1898 s->status = READY_STAT | SEEK_STAT;
1899 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1900 ide_set_irq(s->bus);
1903 case SMART_EXECUTE_OFFLINE:
1904 switch (s->sector) {
1905 case 0: /* off-line routine */
1906 case 1: /* short self test */
1907 case 2: /* extended self test */
1908 s->smart_selftest_count++;
1909 if (s->smart_selftest_count > 21) {
1910 s->smart_selftest_count = 1;
1912 n = 2 + (s->smart_selftest_count - 1) * 24;
1913 s->smart_selftest_data[n] = s->sector;
1914 s->smart_selftest_data[n + 1] = 0x00; /* OK and finished */
1915 s->smart_selftest_data[n + 2] = 0x34; /* hour count lsb */
1916 s->smart_selftest_data[n + 3] = 0x12; /* hour count msb */
1925 ide_abort_command(s);
1929 #define HD_OK (1u << IDE_HD)
1930 #define CD_OK (1u << IDE_CD)
1931 #define CFA_OK (1u << IDE_CFATA)
1932 #define HD_CFA_OK (HD_OK | CFA_OK)
1933 #define ALL_OK (HD_OK | CD_OK | CFA_OK)
1935 /* Set the Disk Seek Completed status bit during completion */
1936 #define SET_DSC (1u << 8)
1938 /* See ACS-2 T13/2015-D Table B.2 Command codes */
1939 static const struct {
1940 /* Returns true if the completion code should be run */
1941 bool (*handler)(IDEState *s, uint8_t cmd);
1943 } ide_cmd_table[0x100] = {
1944 /* NOP not implemented, mandatory for CD */
1945 [CFA_REQ_EXT_ERROR_CODE] = { cmd_cfa_req_ext_error_code, CFA_OK },
1946 [WIN_DSM] = { cmd_data_set_management, HD_CFA_OK },
1947 [WIN_DEVICE_RESET] = { cmd_device_reset, CD_OK },
1948 [WIN_RECAL] = { cmd_nop, HD_CFA_OK | SET_DSC},
1949 [WIN_READ] = { cmd_read_pio, ALL_OK },
1950 [WIN_READ_ONCE] = { cmd_read_pio, HD_CFA_OK },
1951 [WIN_READ_EXT] = { cmd_read_pio, HD_CFA_OK },
1952 [WIN_READDMA_EXT] = { cmd_read_dma, HD_CFA_OK },
1953 [WIN_READ_NATIVE_MAX_EXT] = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
1954 [WIN_MULTREAD_EXT] = { cmd_read_multiple, HD_CFA_OK },
1955 [WIN_WRITE] = { cmd_write_pio, HD_CFA_OK },
1956 [WIN_WRITE_ONCE] = { cmd_write_pio, HD_CFA_OK },
1957 [WIN_WRITE_EXT] = { cmd_write_pio, HD_CFA_OK },
1958 [WIN_WRITEDMA_EXT] = { cmd_write_dma, HD_CFA_OK },
1959 [CFA_WRITE_SECT_WO_ERASE] = { cmd_write_pio, CFA_OK },
1960 [WIN_MULTWRITE_EXT] = { cmd_write_multiple, HD_CFA_OK },
1961 [WIN_WRITE_VERIFY] = { cmd_write_pio, HD_CFA_OK },
1962 [WIN_VERIFY] = { cmd_verify, HD_CFA_OK | SET_DSC },
1963 [WIN_VERIFY_ONCE] = { cmd_verify, HD_CFA_OK | SET_DSC },
1964 [WIN_VERIFY_EXT] = { cmd_verify, HD_CFA_OK | SET_DSC },
1965 [WIN_SEEK] = { cmd_seek, HD_CFA_OK | SET_DSC },
1966 [CFA_TRANSLATE_SECTOR] = { cmd_cfa_translate_sector, CFA_OK },
1967 [WIN_DIAGNOSE] = { cmd_exec_dev_diagnostic, ALL_OK },
1968 [WIN_SPECIFY] = { cmd_nop, HD_CFA_OK | SET_DSC },
1969 [WIN_STANDBYNOW2] = { cmd_nop, HD_CFA_OK },
1970 [WIN_IDLEIMMEDIATE2] = { cmd_nop, HD_CFA_OK },
1971 [WIN_STANDBY2] = { cmd_nop, HD_CFA_OK },
1972 [WIN_SETIDLE2] = { cmd_nop, HD_CFA_OK },
1973 [WIN_CHECKPOWERMODE2] = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
1974 [WIN_SLEEPNOW2] = { cmd_nop, HD_CFA_OK },
1975 [WIN_PACKETCMD] = { cmd_packet, CD_OK },
1976 [WIN_PIDENTIFY] = { cmd_identify_packet, CD_OK },
1977 [WIN_SMART] = { cmd_smart, HD_CFA_OK | SET_DSC },
1978 [CFA_ACCESS_METADATA_STORAGE] = { cmd_cfa_access_metadata_storage, CFA_OK },
1979 [CFA_ERASE_SECTORS] = { cmd_cfa_erase_sectors, CFA_OK | SET_DSC },
1980 [WIN_MULTREAD] = { cmd_read_multiple, HD_CFA_OK },
1981 [WIN_MULTWRITE] = { cmd_write_multiple, HD_CFA_OK },
1982 [WIN_SETMULT] = { cmd_set_multiple_mode, HD_CFA_OK | SET_DSC },
1983 [WIN_READDMA] = { cmd_read_dma, HD_CFA_OK },
1984 [WIN_READDMA_ONCE] = { cmd_read_dma, HD_CFA_OK },
1985 [WIN_WRITEDMA] = { cmd_write_dma, HD_CFA_OK },
1986 [WIN_WRITEDMA_ONCE] = { cmd_write_dma, HD_CFA_OK },
1987 [CFA_WRITE_MULTI_WO_ERASE] = { cmd_write_multiple, CFA_OK },
1988 [WIN_STANDBYNOW1] = { cmd_nop, HD_CFA_OK },
1989 [WIN_IDLEIMMEDIATE] = { cmd_nop, HD_CFA_OK },
1990 [WIN_STANDBY] = { cmd_nop, HD_CFA_OK },
1991 [WIN_SETIDLE1] = { cmd_nop, HD_CFA_OK },
1992 [WIN_CHECKPOWERMODE1] = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
1993 [WIN_SLEEPNOW1] = { cmd_nop, HD_CFA_OK },
1994 [WIN_FLUSH_CACHE] = { cmd_flush_cache, ALL_OK },
1995 [WIN_FLUSH_CACHE_EXT] = { cmd_flush_cache, HD_CFA_OK },
1996 [WIN_IDENTIFY] = { cmd_identify, ALL_OK },
1997 [WIN_SETFEATURES] = { cmd_set_features, ALL_OK | SET_DSC },
1998 [IBM_SENSE_CONDITION] = { cmd_ibm_sense_condition, CFA_OK | SET_DSC },
1999 [CFA_WEAR_LEVEL] = { cmd_cfa_erase_sectors, HD_CFA_OK | SET_DSC },
2000 [WIN_READ_NATIVE_MAX] = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
2003 static bool ide_cmd_permitted(IDEState *s, uint32_t cmd)
2005 return cmd < ARRAY_SIZE(ide_cmd_table)
2006 && (ide_cmd_table[cmd].flags & (1u << s->drive_kind));
2009 void ide_exec_cmd(IDEBus *bus, uint32_t val)
2014 #if defined(DEBUG_IDE)
2015 printf("ide: CMD=%02x\n", val);
2017 s = idebus_active_if(bus);
2018 /* ignore commands to non existent slave */
2019 if (s != bus->ifs && !s->blk) {
2023 /* Only RESET is allowed while BSY and/or DRQ are set,
2024 * and only to ATAPI devices. */
2025 if (s->status & (BUSY_STAT|DRQ_STAT)) {
2026 if (val != WIN_DEVICE_RESET || s->drive_kind != IDE_CD) {
2031 if (!ide_cmd_permitted(s, val)) {
2032 ide_abort_command(s);
2033 ide_set_irq(s->bus);
2037 s->status = READY_STAT | BUSY_STAT;
2039 s->io_buffer_offset = 0;
2041 complete = ide_cmd_table[val].handler(s, val);
2043 s->status &= ~BUSY_STAT;
2044 assert(!!s->error == !!(s->status & ERR_STAT));
2046 if ((ide_cmd_table[val].flags & SET_DSC) && !s->error) {
2047 s->status |= SEEK_STAT;
2051 ide_set_irq(s->bus);
2055 uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
2057 IDEBus *bus = opaque;
2058 IDEState *s = idebus_active_if(bus);
2063 /* FIXME: HOB readback uses bit 7, but it's always set right now */
2064 //hob = s->select & (1 << 7);
2071 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
2072 (s != bus->ifs && !s->blk)) {
2077 ret = s->hob_feature;
2081 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2084 ret = s->nsector & 0xff;
2086 ret = s->hob_nsector;
2090 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2095 ret = s->hob_sector;
2099 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2108 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2117 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2125 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
2126 (s != bus->ifs && !s->blk)) {
2131 qemu_irq_lower(bus->irq);
2135 printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
2140 uint32_t ide_status_read(void *opaque, uint32_t addr)
2142 IDEBus *bus = opaque;
2143 IDEState *s = idebus_active_if(bus);
2146 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
2147 (s != bus->ifs && !s->blk)) {
2153 printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
2158 void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val)
2160 IDEBus *bus = opaque;
2165 printf("ide: write control addr=0x%x val=%02x\n", addr, val);
2167 /* common for both drives */
2168 if (!(bus->cmd & IDE_CMD_RESET) &&
2169 (val & IDE_CMD_RESET)) {
2170 /* reset low to high */
2171 for(i = 0;i < 2; i++) {
2173 s->status = BUSY_STAT | SEEK_STAT;
2176 } else if ((bus->cmd & IDE_CMD_RESET) &&
2177 !(val & IDE_CMD_RESET)) {
2179 for(i = 0;i < 2; i++) {
2181 if (s->drive_kind == IDE_CD)
2182 s->status = 0x00; /* NOTE: READY is _not_ set */
2184 s->status = READY_STAT | SEEK_STAT;
2185 ide_set_signature(s);
2193 * Returns true if the running PIO transfer is a PIO out (i.e. data is
2194 * transferred from the device to the guest), false if it's a PIO in
2196 static bool ide_is_pio_out(IDEState *s)
2198 if (s->end_transfer_func == ide_sector_write ||
2199 s->end_transfer_func == ide_atapi_cmd) {
2201 } else if (s->end_transfer_func == ide_sector_read ||
2202 s->end_transfer_func == ide_transfer_stop ||
2203 s->end_transfer_func == ide_atapi_cmd_reply_end ||
2204 s->end_transfer_func == ide_dummy_transfer_stop) {
2211 void ide_data_writew(void *opaque, uint32_t addr, uint32_t val)
2213 IDEBus *bus = opaque;
2214 IDEState *s = idebus_active_if(bus);
2217 /* PIO data access allowed only when DRQ bit is set. The result of a write
2218 * during PIO out is indeterminate, just ignore it. */
2219 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
2224 if (p + 2 > s->data_end) {
2228 *(uint16_t *)p = le16_to_cpu(val);
2231 if (p >= s->data_end) {
2232 s->status &= ~DRQ_STAT;
2233 s->end_transfer_func(s);
2237 uint32_t ide_data_readw(void *opaque, uint32_t addr)
2239 IDEBus *bus = opaque;
2240 IDEState *s = idebus_active_if(bus);
2244 /* PIO data access allowed only when DRQ bit is set. The result of a read
2245 * during PIO in is indeterminate, return 0 and don't move forward. */
2246 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
2251 if (p + 2 > s->data_end) {
2255 ret = cpu_to_le16(*(uint16_t *)p);
2258 if (p >= s->data_end) {
2259 s->status &= ~DRQ_STAT;
2260 s->end_transfer_func(s);
2265 void ide_data_writel(void *opaque, uint32_t addr, uint32_t val)
2267 IDEBus *bus = opaque;
2268 IDEState *s = idebus_active_if(bus);
2271 /* PIO data access allowed only when DRQ bit is set. The result of a write
2272 * during PIO out is indeterminate, just ignore it. */
2273 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
2278 if (p + 4 > s->data_end) {
2282 *(uint32_t *)p = le32_to_cpu(val);
2285 if (p >= s->data_end) {
2286 s->status &= ~DRQ_STAT;
2287 s->end_transfer_func(s);
2291 uint32_t ide_data_readl(void *opaque, uint32_t addr)
2293 IDEBus *bus = opaque;
2294 IDEState *s = idebus_active_if(bus);
2298 /* PIO data access allowed only when DRQ bit is set. The result of a read
2299 * during PIO in is indeterminate, return 0 and don't move forward. */
2300 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
2305 if (p + 4 > s->data_end) {
2309 ret = cpu_to_le32(*(uint32_t *)p);
2312 if (p >= s->data_end) {
2313 s->status &= ~DRQ_STAT;
2314 s->end_transfer_func(s);
2319 static void ide_dummy_transfer_stop(IDEState *s)
2321 s->data_ptr = s->io_buffer;
2322 s->data_end = s->io_buffer;
2323 s->io_buffer[0] = 0xff;
2324 s->io_buffer[1] = 0xff;
2325 s->io_buffer[2] = 0xff;
2326 s->io_buffer[3] = 0xff;
2329 void ide_bus_reset(IDEBus *bus)
2333 ide_reset(&bus->ifs[0]);
2334 ide_reset(&bus->ifs[1]);
2337 /* pending async DMA */
2338 if (bus->dma->aiocb) {
2340 printf("aio_cancel\n");
2342 blk_aio_cancel(bus->dma->aiocb);
2343 bus->dma->aiocb = NULL;
2346 /* reset dma provider too */
2347 if (bus->dma->ops->reset) {
2348 bus->dma->ops->reset(bus->dma);
2352 static bool ide_cd_is_tray_open(void *opaque)
2354 return ((IDEState *)opaque)->tray_open;
2357 static bool ide_cd_is_medium_locked(void *opaque)
2359 return ((IDEState *)opaque)->tray_locked;
2362 static void ide_resize_cb(void *opaque)
2364 IDEState *s = opaque;
2365 uint64_t nb_sectors;
2367 if (!s->identify_set) {
2371 blk_get_geometry(s->blk, &nb_sectors);
2372 s->nb_sectors = nb_sectors;
2374 /* Update the identify data buffer. */
2375 if (s->drive_kind == IDE_CFATA) {
2376 ide_cfata_identify_size(s);
2378 /* IDE_CD uses a different set of callbacks entirely. */
2379 assert(s->drive_kind != IDE_CD);
2380 ide_identify_size(s);
2384 static const BlockDevOps ide_cd_block_ops = {
2385 .change_media_cb = ide_cd_change_cb,
2386 .eject_request_cb = ide_cd_eject_request_cb,
2387 .is_tray_open = ide_cd_is_tray_open,
2388 .is_medium_locked = ide_cd_is_medium_locked,
2391 static const BlockDevOps ide_hd_block_ops = {
2392 .resize_cb = ide_resize_cb,
2395 int ide_init_drive(IDEState *s, BlockBackend *blk, IDEDriveKind kind,
2396 const char *version, const char *serial, const char *model,
2398 uint32_t cylinders, uint32_t heads, uint32_t secs,
2401 uint64_t nb_sectors;
2404 s->drive_kind = kind;
2406 blk_get_geometry(blk, &nb_sectors);
2407 s->cylinders = cylinders;
2410 s->chs_trans = chs_trans;
2411 s->nb_sectors = nb_sectors;
2413 /* The SMART values should be preserved across power cycles
2415 s->smart_enabled = 1;
2416 s->smart_autosave = 1;
2417 s->smart_errors = 0;
2418 s->smart_selftest_count = 0;
2419 if (kind == IDE_CD) {
2420 blk_set_dev_ops(blk, &ide_cd_block_ops, s);
2421 blk_set_guest_block_size(blk, 2048);
2423 if (!blk_is_inserted(s->blk)) {
2424 error_report("Device needs media, but drive is empty");
2427 if (blk_is_read_only(blk)) {
2428 error_report("Can't use a read-only drive");
2431 blk_set_dev_ops(blk, &ide_hd_block_ops, s);
2434 pstrcpy(s->drive_serial_str, sizeof(s->drive_serial_str), serial);
2436 snprintf(s->drive_serial_str, sizeof(s->drive_serial_str),
2437 "QM%05d", s->drive_serial);
2440 pstrcpy(s->drive_model_str, sizeof(s->drive_model_str), model);
2444 strcpy(s->drive_model_str, "QEMU DVD-ROM");
2447 strcpy(s->drive_model_str, "QEMU MICRODRIVE");
2450 strcpy(s->drive_model_str, "QEMU HARDDISK");
2456 pstrcpy(s->version, sizeof(s->version), version);
2458 pstrcpy(s->version, sizeof(s->version), qemu_hw_version());
2462 blk_iostatus_enable(blk);
2466 static void ide_init1(IDEBus *bus, int unit)
2468 static int drive_serial = 1;
2469 IDEState *s = &bus->ifs[unit];
2473 s->drive_serial = drive_serial++;
2474 /* we need at least 2k alignment for accessing CDROMs using O_DIRECT */
2475 s->io_buffer_total_len = IDE_DMA_BUF_SECTORS*512 + 4;
2476 s->io_buffer = qemu_memalign(2048, s->io_buffer_total_len);
2477 memset(s->io_buffer, 0, s->io_buffer_total_len);
2479 s->smart_selftest_data = blk_blockalign(s->blk, 512);
2480 memset(s->smart_selftest_data, 0, 512);
2482 s->sector_write_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
2483 ide_sector_write_timer_cb, s);
2486 static int ide_nop_int(IDEDMA *dma, int x)
2491 static void ide_nop(IDEDMA *dma)
2495 static int32_t ide_nop_int32(IDEDMA *dma, int32_t l)
2500 static const IDEDMAOps ide_dma_nop_ops = {
2501 .prepare_buf = ide_nop_int32,
2502 .restart_dma = ide_nop,
2503 .rw_buf = ide_nop_int,
2506 static void ide_restart_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
2508 s->unit = s->bus->retry_unit;
2509 ide_set_sector(s, s->bus->retry_sector_num);
2510 s->nsector = s->bus->retry_nsector;
2511 s->bus->dma->ops->restart_dma(s->bus->dma);
2512 s->io_buffer_size = 0;
2513 s->dma_cmd = dma_cmd;
2514 ide_start_dma(s, ide_dma_cb);
2517 static void ide_restart_bh(void *opaque)
2519 IDEBus *bus = opaque;
2524 qemu_bh_delete(bus->bh);
2527 error_status = bus->error_status;
2528 if (bus->error_status == 0) {
2532 s = idebus_active_if(bus);
2533 is_read = (bus->error_status & IDE_RETRY_READ) != 0;
2535 /* The error status must be cleared before resubmitting the request: The
2536 * request may fail again, and this case can only be distinguished if the
2537 * called function can set a new error status. */
2538 bus->error_status = 0;
2540 /* The HBA has generically asked to be kicked on retry */
2541 if (error_status & IDE_RETRY_HBA) {
2542 if (s->bus->dma->ops->restart) {
2543 s->bus->dma->ops->restart(s->bus->dma);
2545 } else if (IS_IDE_RETRY_DMA(error_status)) {
2546 if (error_status & IDE_RETRY_TRIM) {
2547 ide_restart_dma(s, IDE_DMA_TRIM);
2549 ide_restart_dma(s, is_read ? IDE_DMA_READ : IDE_DMA_WRITE);
2551 } else if (IS_IDE_RETRY_PIO(error_status)) {
2555 ide_sector_write(s);
2557 } else if (error_status & IDE_RETRY_FLUSH) {
2559 } else if (IS_IDE_RETRY_ATAPI(error_status)) {
2560 assert(s->end_transfer_func == ide_atapi_cmd);
2561 ide_atapi_dma_restart(s);
2567 static void ide_restart_cb(void *opaque, int running, RunState state)
2569 IDEBus *bus = opaque;
2575 bus->bh = qemu_bh_new(ide_restart_bh, bus);
2576 qemu_bh_schedule(bus->bh);
2580 void ide_register_restart_cb(IDEBus *bus)
2582 if (bus->dma->ops->restart_dma) {
2583 qemu_add_vm_change_state_handler(ide_restart_cb, bus);
2587 static IDEDMA ide_dma_nop = {
2588 .ops = &ide_dma_nop_ops,
2592 void ide_init2(IDEBus *bus, qemu_irq irq)
2596 for(i = 0; i < 2; i++) {
2598 ide_reset(&bus->ifs[i]);
2601 bus->dma = &ide_dma_nop;
2604 static const MemoryRegionPortio ide_portio_list[] = {
2605 { 0, 8, 1, .read = ide_ioport_read, .write = ide_ioport_write },
2606 { 0, 1, 2, .read = ide_data_readw, .write = ide_data_writew },
2607 { 0, 1, 4, .read = ide_data_readl, .write = ide_data_writel },
2608 PORTIO_END_OF_LIST(),
2611 static const MemoryRegionPortio ide_portio2_list[] = {
2612 { 0, 1, 1, .read = ide_status_read, .write = ide_cmd_write },
2613 PORTIO_END_OF_LIST(),
2616 void ide_init_ioport(IDEBus *bus, ISADevice *dev, int iobase, int iobase2)
2618 /* ??? Assume only ISA and PCI configurations, and that the PCI-ISA
2619 bridge has been setup properly to always register with ISA. */
2620 isa_register_portio_list(dev, iobase, ide_portio_list, bus, "ide");
2623 isa_register_portio_list(dev, iobase2, ide_portio2_list, bus, "ide");
2627 static bool is_identify_set(void *opaque, int version_id)
2629 IDEState *s = opaque;
2631 return s->identify_set != 0;
2634 static EndTransferFunc* transfer_end_table[] = {
2638 ide_atapi_cmd_reply_end,
2640 ide_dummy_transfer_stop,
2643 static int transfer_end_table_idx(EndTransferFunc *fn)
2647 for (i = 0; i < ARRAY_SIZE(transfer_end_table); i++)
2648 if (transfer_end_table[i] == fn)
2654 static int ide_drive_post_load(void *opaque, int version_id)
2656 IDEState *s = opaque;
2658 if (s->blk && s->identify_set) {
2659 blk_set_enable_write_cache(s->blk, !!(s->identify_data[85] & (1 << 5)));
2664 static int ide_drive_pio_post_load(void *opaque, int version_id)
2666 IDEState *s = opaque;
2668 if (s->end_transfer_fn_idx >= ARRAY_SIZE(transfer_end_table)) {
2671 s->end_transfer_func = transfer_end_table[s->end_transfer_fn_idx];
2672 s->data_ptr = s->io_buffer + s->cur_io_buffer_offset;
2673 s->data_end = s->data_ptr + s->cur_io_buffer_len;
2674 s->atapi_dma = s->feature & 1; /* as per cmd_packet */
2679 static void ide_drive_pio_pre_save(void *opaque)
2681 IDEState *s = opaque;
2684 s->cur_io_buffer_offset = s->data_ptr - s->io_buffer;
2685 s->cur_io_buffer_len = s->data_end - s->data_ptr;
2687 idx = transfer_end_table_idx(s->end_transfer_func);
2689 fprintf(stderr, "%s: invalid end_transfer_func for DRQ_STAT\n",
2691 s->end_transfer_fn_idx = 2;
2693 s->end_transfer_fn_idx = idx;
2697 static bool ide_drive_pio_state_needed(void *opaque)
2699 IDEState *s = opaque;
2701 return ((s->status & DRQ_STAT) != 0)
2702 || (s->bus->error_status & IDE_RETRY_PIO);
2705 static bool ide_tray_state_needed(void *opaque)
2707 IDEState *s = opaque;
2709 return s->tray_open || s->tray_locked;
2712 static bool ide_atapi_gesn_needed(void *opaque)
2714 IDEState *s = opaque;
2716 return s->events.new_media || s->events.eject_request;
2719 static bool ide_error_needed(void *opaque)
2721 IDEBus *bus = opaque;
2723 return (bus->error_status != 0);
2726 /* Fields for GET_EVENT_STATUS_NOTIFICATION ATAPI command */
2727 static const VMStateDescription vmstate_ide_atapi_gesn_state = {
2728 .name ="ide_drive/atapi/gesn_state",
2730 .minimum_version_id = 1,
2731 .needed = ide_atapi_gesn_needed,
2732 .fields = (VMStateField[]) {
2733 VMSTATE_BOOL(events.new_media, IDEState),
2734 VMSTATE_BOOL(events.eject_request, IDEState),
2735 VMSTATE_END_OF_LIST()
2739 static const VMStateDescription vmstate_ide_tray_state = {
2740 .name = "ide_drive/tray_state",
2742 .minimum_version_id = 1,
2743 .needed = ide_tray_state_needed,
2744 .fields = (VMStateField[]) {
2745 VMSTATE_BOOL(tray_open, IDEState),
2746 VMSTATE_BOOL(tray_locked, IDEState),
2747 VMSTATE_END_OF_LIST()
2751 static const VMStateDescription vmstate_ide_drive_pio_state = {
2752 .name = "ide_drive/pio_state",
2754 .minimum_version_id = 1,
2755 .pre_save = ide_drive_pio_pre_save,
2756 .post_load = ide_drive_pio_post_load,
2757 .needed = ide_drive_pio_state_needed,
2758 .fields = (VMStateField[]) {
2759 VMSTATE_INT32(req_nb_sectors, IDEState),
2760 VMSTATE_VARRAY_INT32(io_buffer, IDEState, io_buffer_total_len, 1,
2761 vmstate_info_uint8, uint8_t),
2762 VMSTATE_INT32(cur_io_buffer_offset, IDEState),
2763 VMSTATE_INT32(cur_io_buffer_len, IDEState),
2764 VMSTATE_UINT8(end_transfer_fn_idx, IDEState),
2765 VMSTATE_INT32(elementary_transfer_size, IDEState),
2766 VMSTATE_INT32(packet_transfer_size, IDEState),
2767 VMSTATE_END_OF_LIST()
2771 const VMStateDescription vmstate_ide_drive = {
2772 .name = "ide_drive",
2774 .minimum_version_id = 0,
2775 .post_load = ide_drive_post_load,
2776 .fields = (VMStateField[]) {
2777 VMSTATE_INT32(mult_sectors, IDEState),
2778 VMSTATE_INT32(identify_set, IDEState),
2779 VMSTATE_BUFFER_TEST(identify_data, IDEState, is_identify_set),
2780 VMSTATE_UINT8(feature, IDEState),
2781 VMSTATE_UINT8(error, IDEState),
2782 VMSTATE_UINT32(nsector, IDEState),
2783 VMSTATE_UINT8(sector, IDEState),
2784 VMSTATE_UINT8(lcyl, IDEState),
2785 VMSTATE_UINT8(hcyl, IDEState),
2786 VMSTATE_UINT8(hob_feature, IDEState),
2787 VMSTATE_UINT8(hob_sector, IDEState),
2788 VMSTATE_UINT8(hob_nsector, IDEState),
2789 VMSTATE_UINT8(hob_lcyl, IDEState),
2790 VMSTATE_UINT8(hob_hcyl, IDEState),
2791 VMSTATE_UINT8(select, IDEState),
2792 VMSTATE_UINT8(status, IDEState),
2793 VMSTATE_UINT8(lba48, IDEState),
2794 VMSTATE_UINT8(sense_key, IDEState),
2795 VMSTATE_UINT8(asc, IDEState),
2796 VMSTATE_UINT8_V(cdrom_changed, IDEState, 3),
2797 VMSTATE_END_OF_LIST()
2799 .subsections = (const VMStateDescription*[]) {
2800 &vmstate_ide_drive_pio_state,
2801 &vmstate_ide_tray_state,
2802 &vmstate_ide_atapi_gesn_state,
2807 static const VMStateDescription vmstate_ide_error_status = {
2808 .name ="ide_bus/error",
2810 .minimum_version_id = 1,
2811 .needed = ide_error_needed,
2812 .fields = (VMStateField[]) {
2813 VMSTATE_INT32(error_status, IDEBus),
2814 VMSTATE_INT64_V(retry_sector_num, IDEBus, 2),
2815 VMSTATE_UINT32_V(retry_nsector, IDEBus, 2),
2816 VMSTATE_UINT8_V(retry_unit, IDEBus, 2),
2817 VMSTATE_END_OF_LIST()
2821 const VMStateDescription vmstate_ide_bus = {
2824 .minimum_version_id = 1,
2825 .fields = (VMStateField[]) {
2826 VMSTATE_UINT8(cmd, IDEBus),
2827 VMSTATE_UINT8(unit, IDEBus),
2828 VMSTATE_END_OF_LIST()
2830 .subsections = (const VMStateDescription*[]) {
2831 &vmstate_ide_error_status,
2836 void ide_drive_get(DriveInfo **hd, int n)
2839 int highest_bus = drive_get_max_bus(IF_IDE) + 1;
2840 int max_devs = drive_get_max_devs(IF_IDE);
2841 int n_buses = max_devs ? (n / max_devs) : n;
2844 * Note: The number of actual buses available is not known.
2845 * We compute this based on the size of the DriveInfo* array, n.
2846 * If it is less than max_devs * <num_real_buses>,
2847 * We will stop looking for drives prematurely instead of overfilling
2851 if (highest_bus > n_buses) {
2852 error_report("Too many IDE buses defined (%d > %d)",
2853 highest_bus, n_buses);
2857 for (i = 0; i < n; i++) {
2858 hd[i] = drive_get_by_index(IF_IDE, i);