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))) {
826 s->bus->dma->aiocb = NULL;
827 dma_buf_commit(s, 0);
832 n = s->io_buffer_size >> 9;
833 if (n > s->nsector) {
834 /* The PRDs were longer than needed for this request. Shorten them so
835 * we don't get a negative remainder. The Active bit must remain set
836 * after the request completes. */
841 sector_num = ide_get_sector(s);
843 assert(n * 512 == s->sg.size);
844 dma_buf_commit(s, s->sg.size);
846 ide_set_sector(s, sector_num);
850 /* end of transfer ? */
851 if (s->nsector == 0) {
852 s->status = READY_STAT | SEEK_STAT;
857 /* launch next transfer */
859 s->io_buffer_index = 0;
860 s->io_buffer_size = n * 512;
861 if (s->bus->dma->ops->prepare_buf(s->bus->dma, s->io_buffer_size) < 512) {
862 /* The PRDs were too short. Reset the Active bit, but don't raise an
864 s->status = READY_STAT | SEEK_STAT;
865 dma_buf_commit(s, 0);
870 printf("ide_dma_cb: sector_num=%" PRId64 " n=%d, cmd_cmd=%d\n",
871 sector_num, n, s->dma_cmd);
874 if ((s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) &&
875 !ide_sect_range_ok(s, sector_num, n)) {
877 block_acct_invalid(blk_get_stats(s->blk), s->acct.type);
881 offset = sector_num << BDRV_SECTOR_BITS;
882 switch (s->dma_cmd) {
884 s->bus->dma->aiocb = dma_blk_read(s->blk, &s->sg, offset,
885 BDRV_SECTOR_SIZE, ide_dma_cb, s);
888 s->bus->dma->aiocb = dma_blk_write(s->blk, &s->sg, offset,
889 BDRV_SECTOR_SIZE, ide_dma_cb, s);
892 s->bus->dma->aiocb = dma_blk_io(blk_get_aio_context(s->blk),
893 &s->sg, offset, BDRV_SECTOR_SIZE,
894 ide_issue_trim, s->blk, ide_dma_cb, s,
895 DMA_DIRECTION_TO_DEVICE);
903 if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) {
904 block_acct_done(blk_get_stats(s->blk), &s->acct);
906 ide_set_inactive(s, stay_active);
909 static void ide_sector_start_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
911 s->status = READY_STAT | SEEK_STAT | DRQ_STAT;
912 s->io_buffer_size = 0;
913 s->dma_cmd = dma_cmd;
917 block_acct_start(blk_get_stats(s->blk), &s->acct,
918 s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
921 block_acct_start(blk_get_stats(s->blk), &s->acct,
922 s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
928 ide_start_dma(s, ide_dma_cb);
931 void ide_start_dma(IDEState *s, BlockCompletionFunc *cb)
933 s->io_buffer_index = 0;
935 if (s->bus->dma->ops->start_dma) {
936 s->bus->dma->ops->start_dma(s->bus->dma, s, cb);
940 static void ide_sector_write(IDEState *s);
942 static void ide_sector_write_timer_cb(void *opaque)
944 IDEState *s = opaque;
948 static void ide_sector_write_cb(void *opaque, int ret)
950 IDEState *s = opaque;
953 if (ret == -ECANCELED) {
958 s->status &= ~BUSY_STAT;
961 if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO)) {
966 block_acct_done(blk_get_stats(s->blk), &s->acct);
969 if (n > s->req_nb_sectors) {
970 n = s->req_nb_sectors;
974 ide_set_sector(s, ide_get_sector(s) + n);
975 if (s->nsector == 0) {
976 /* no more sectors to write */
977 ide_transfer_stop(s);
980 if (n1 > s->req_nb_sectors) {
981 n1 = s->req_nb_sectors;
983 ide_transfer_start(s, s->io_buffer, n1 * BDRV_SECTOR_SIZE,
987 if (win2k_install_hack && ((++s->irq_count % 16) == 0)) {
988 /* It seems there is a bug in the Windows 2000 installer HDD
989 IDE driver which fills the disk with empty logs when the
990 IDE write IRQ comes too early. This hack tries to correct
991 that at the expense of slower write performances. Use this
992 option _only_ to install Windows 2000. You must disable it
994 timer_mod(s->sector_write_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
995 (NANOSECONDS_PER_SECOND / 1000));
1001 static void ide_sector_write(IDEState *s)
1006 s->status = READY_STAT | SEEK_STAT | BUSY_STAT;
1007 sector_num = ide_get_sector(s);
1008 #if defined(DEBUG_IDE)
1009 printf("sector=%" PRId64 "\n", sector_num);
1012 if (n > s->req_nb_sectors) {
1013 n = s->req_nb_sectors;
1016 if (!ide_sect_range_ok(s, sector_num, n)) {
1018 block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_WRITE);
1022 s->iov.iov_base = s->io_buffer;
1023 s->iov.iov_len = n * BDRV_SECTOR_SIZE;
1024 qemu_iovec_init_external(&s->qiov, &s->iov, 1);
1026 block_acct_start(blk_get_stats(s->blk), &s->acct,
1027 n * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
1028 s->pio_aiocb = blk_aio_pwritev(s->blk, sector_num << BDRV_SECTOR_BITS,
1029 &s->qiov, 0, ide_sector_write_cb, s);
1032 static void ide_flush_cb(void *opaque, int ret)
1034 IDEState *s = opaque;
1036 s->pio_aiocb = NULL;
1038 if (ret == -ECANCELED) {
1042 /* XXX: What sector number to set here? */
1043 if (ide_handle_rw_error(s, -ret, IDE_RETRY_FLUSH)) {
1049 block_acct_done(blk_get_stats(s->blk), &s->acct);
1051 s->status = READY_STAT | SEEK_STAT;
1053 ide_set_irq(s->bus);
1056 static void ide_flush_cache(IDEState *s)
1058 if (s->blk == NULL) {
1063 s->status |= BUSY_STAT;
1065 block_acct_start(blk_get_stats(s->blk), &s->acct, 0, BLOCK_ACCT_FLUSH);
1067 if (blk_bs(s->blk)) {
1068 s->pio_aiocb = blk_aio_flush(s->blk, ide_flush_cb, s);
1070 /* XXX blk_aio_flush() crashes when blk_bs(blk) is NULL, remove this
1071 * temporary workaround when blk_aio_*() functions handle NULL blk_bs.
1077 static void ide_cfata_metadata_inquiry(IDEState *s)
1082 p = (uint16_t *) s->io_buffer;
1083 memset(p, 0, 0x200);
1084 spd = ((s->mdata_size - 1) >> 9) + 1;
1086 put_le16(p + 0, 0x0001); /* Data format revision */
1087 put_le16(p + 1, 0x0000); /* Media property: silicon */
1088 put_le16(p + 2, s->media_changed); /* Media status */
1089 put_le16(p + 3, s->mdata_size & 0xffff); /* Capacity in bytes (low) */
1090 put_le16(p + 4, s->mdata_size >> 16); /* Capacity in bytes (high) */
1091 put_le16(p + 5, spd & 0xffff); /* Sectors per device (low) */
1092 put_le16(p + 6, spd >> 16); /* Sectors per device (high) */
1095 static void ide_cfata_metadata_read(IDEState *s)
1099 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
1100 s->status = ERR_STAT;
1101 s->error = ABRT_ERR;
1105 p = (uint16_t *) s->io_buffer;
1106 memset(p, 0, 0x200);
1108 put_le16(p + 0, s->media_changed); /* Media status */
1109 memcpy(p + 1, s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
1110 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
1111 s->nsector << 9), 0x200 - 2));
1114 static void ide_cfata_metadata_write(IDEState *s)
1116 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
1117 s->status = ERR_STAT;
1118 s->error = ABRT_ERR;
1122 s->media_changed = 0;
1124 memcpy(s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
1126 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
1127 s->nsector << 9), 0x200 - 2));
1130 /* called when the inserted state of the media has changed */
1131 static void ide_cd_change_cb(void *opaque, bool load, Error **errp)
1133 IDEState *s = opaque;
1134 uint64_t nb_sectors;
1136 s->tray_open = !load;
1137 blk_get_geometry(s->blk, &nb_sectors);
1138 s->nb_sectors = nb_sectors;
1141 * First indicate to the guest that a CD has been removed. That's
1142 * done on the next command the guest sends us.
1144 * Then we set UNIT_ATTENTION, by which the guest will
1145 * detect a new CD in the drive. See ide_atapi_cmd() for details.
1147 s->cdrom_changed = 1;
1148 s->events.new_media = true;
1149 s->events.eject_request = false;
1150 ide_set_irq(s->bus);
1153 static void ide_cd_eject_request_cb(void *opaque, bool force)
1155 IDEState *s = opaque;
1157 s->events.eject_request = true;
1159 s->tray_locked = false;
1161 ide_set_irq(s->bus);
1164 static void ide_cmd_lba48_transform(IDEState *s, int lba48)
1168 /* handle the 'magic' 0 nsector count conversion here. to avoid
1169 * fiddling with the rest of the read logic, we just store the
1170 * full sector count in ->nsector and ignore ->hob_nsector from now
1176 if (!s->nsector && !s->hob_nsector)
1179 int lo = s->nsector;
1180 int hi = s->hob_nsector;
1182 s->nsector = (hi << 8) | lo;
1187 static void ide_clear_hob(IDEBus *bus)
1189 /* any write clears HOB high bit of device control register */
1190 bus->ifs[0].select &= ~(1 << 7);
1191 bus->ifs[1].select &= ~(1 << 7);
1194 void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
1196 IDEBus *bus = opaque;
1199 printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
1204 /* ignore writes to command block while busy with previous command */
1205 if (addr != 7 && (idebus_active_if(bus)->status & (BUSY_STAT|DRQ_STAT)))
1213 /* NOTE: data is written to the two drives */
1214 bus->ifs[0].hob_feature = bus->ifs[0].feature;
1215 bus->ifs[1].hob_feature = bus->ifs[1].feature;
1216 bus->ifs[0].feature = val;
1217 bus->ifs[1].feature = val;
1221 bus->ifs[0].hob_nsector = bus->ifs[0].nsector;
1222 bus->ifs[1].hob_nsector = bus->ifs[1].nsector;
1223 bus->ifs[0].nsector = val;
1224 bus->ifs[1].nsector = val;
1228 bus->ifs[0].hob_sector = bus->ifs[0].sector;
1229 bus->ifs[1].hob_sector = bus->ifs[1].sector;
1230 bus->ifs[0].sector = val;
1231 bus->ifs[1].sector = val;
1235 bus->ifs[0].hob_lcyl = bus->ifs[0].lcyl;
1236 bus->ifs[1].hob_lcyl = bus->ifs[1].lcyl;
1237 bus->ifs[0].lcyl = val;
1238 bus->ifs[1].lcyl = val;
1242 bus->ifs[0].hob_hcyl = bus->ifs[0].hcyl;
1243 bus->ifs[1].hob_hcyl = bus->ifs[1].hcyl;
1244 bus->ifs[0].hcyl = val;
1245 bus->ifs[1].hcyl = val;
1248 /* FIXME: HOB readback uses bit 7 */
1249 bus->ifs[0].select = (val & ~0x10) | 0xa0;
1250 bus->ifs[1].select = (val | 0x10) | 0xa0;
1252 bus->unit = (val >> 4) & 1;
1257 ide_exec_cmd(bus, val);
1262 static void ide_reset(IDEState *s)
1265 printf("ide: reset\n");
1269 blk_aio_cancel(s->pio_aiocb);
1270 s->pio_aiocb = NULL;
1273 if (s->drive_kind == IDE_CFATA)
1274 s->mult_sectors = 0;
1276 s->mult_sectors = MAX_MULT_SECTORS;
1293 s->status = READY_STAT | SEEK_STAT;
1297 /* ATAPI specific */
1300 s->cdrom_changed = 0;
1301 s->packet_transfer_size = 0;
1302 s->elementary_transfer_size = 0;
1303 s->io_buffer_index = 0;
1304 s->cd_sector_size = 0;
1309 s->io_buffer_size = 0;
1310 s->req_nb_sectors = 0;
1312 ide_set_signature(s);
1313 /* init the transfer handler so that 0xffff is returned on data
1315 s->end_transfer_func = ide_dummy_transfer_stop;
1316 ide_dummy_transfer_stop(s);
1317 s->media_changed = 0;
1320 static bool cmd_nop(IDEState *s, uint8_t cmd)
1325 static bool cmd_device_reset(IDEState *s, uint8_t cmd)
1327 /* Halt PIO (in the DRQ phase), then DMA */
1328 ide_transfer_cancel(s);
1329 ide_cancel_dma_sync(s);
1331 /* Reset any PIO commands, reset signature, etc */
1334 /* RESET: ATA8-ACS3 7.10.4 "Normal Outputs";
1335 * ATA8-ACS3 Table 184 "Device Signatures for Normal Output" */
1338 /* Do not overwrite status register */
1342 static bool cmd_data_set_management(IDEState *s, uint8_t cmd)
1344 switch (s->feature) {
1347 ide_sector_start_dma(s, IDE_DMA_TRIM);
1353 ide_abort_command(s);
1357 static bool cmd_identify(IDEState *s, uint8_t cmd)
1359 if (s->blk && s->drive_kind != IDE_CD) {
1360 if (s->drive_kind != IDE_CFATA) {
1363 ide_cfata_identify(s);
1365 s->status = READY_STAT | SEEK_STAT;
1366 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1367 ide_set_irq(s->bus);
1370 if (s->drive_kind == IDE_CD) {
1371 ide_set_signature(s);
1373 ide_abort_command(s);
1379 static bool cmd_verify(IDEState *s, uint8_t cmd)
1381 bool lba48 = (cmd == WIN_VERIFY_EXT);
1383 /* do sector number check ? */
1384 ide_cmd_lba48_transform(s, lba48);
1389 static bool cmd_set_multiple_mode(IDEState *s, uint8_t cmd)
1391 if (s->drive_kind == IDE_CFATA && s->nsector == 0) {
1392 /* Disable Read and Write Multiple */
1393 s->mult_sectors = 0;
1394 } else if ((s->nsector & 0xff) != 0 &&
1395 ((s->nsector & 0xff) > MAX_MULT_SECTORS ||
1396 (s->nsector & (s->nsector - 1)) != 0)) {
1397 ide_abort_command(s);
1399 s->mult_sectors = s->nsector & 0xff;
1405 static bool cmd_read_multiple(IDEState *s, uint8_t cmd)
1407 bool lba48 = (cmd == WIN_MULTREAD_EXT);
1409 if (!s->blk || !s->mult_sectors) {
1410 ide_abort_command(s);
1414 ide_cmd_lba48_transform(s, lba48);
1415 s->req_nb_sectors = s->mult_sectors;
1420 static bool cmd_write_multiple(IDEState *s, uint8_t cmd)
1422 bool lba48 = (cmd == WIN_MULTWRITE_EXT);
1425 if (!s->blk || !s->mult_sectors) {
1426 ide_abort_command(s);
1430 ide_cmd_lba48_transform(s, lba48);
1432 s->req_nb_sectors = s->mult_sectors;
1433 n = MIN(s->nsector, s->req_nb_sectors);
1435 s->status = SEEK_STAT | READY_STAT;
1436 ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
1438 s->media_changed = 1;
1443 static bool cmd_read_pio(IDEState *s, uint8_t cmd)
1445 bool lba48 = (cmd == WIN_READ_EXT);
1447 if (s->drive_kind == IDE_CD) {
1448 ide_set_signature(s); /* odd, but ATA4 8.27.5.2 requires it */
1449 ide_abort_command(s);
1454 ide_abort_command(s);
1458 ide_cmd_lba48_transform(s, lba48);
1459 s->req_nb_sectors = 1;
1465 static bool cmd_write_pio(IDEState *s, uint8_t cmd)
1467 bool lba48 = (cmd == WIN_WRITE_EXT);
1470 ide_abort_command(s);
1474 ide_cmd_lba48_transform(s, lba48);
1476 s->req_nb_sectors = 1;
1477 s->status = SEEK_STAT | READY_STAT;
1478 ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
1480 s->media_changed = 1;
1485 static bool cmd_read_dma(IDEState *s, uint8_t cmd)
1487 bool lba48 = (cmd == WIN_READDMA_EXT);
1490 ide_abort_command(s);
1494 ide_cmd_lba48_transform(s, lba48);
1495 ide_sector_start_dma(s, IDE_DMA_READ);
1500 static bool cmd_write_dma(IDEState *s, uint8_t cmd)
1502 bool lba48 = (cmd == WIN_WRITEDMA_EXT);
1505 ide_abort_command(s);
1509 ide_cmd_lba48_transform(s, lba48);
1510 ide_sector_start_dma(s, IDE_DMA_WRITE);
1512 s->media_changed = 1;
1517 static bool cmd_flush_cache(IDEState *s, uint8_t cmd)
1523 static bool cmd_seek(IDEState *s, uint8_t cmd)
1525 /* XXX: Check that seek is within bounds */
1529 static bool cmd_read_native_max(IDEState *s, uint8_t cmd)
1531 bool lba48 = (cmd == WIN_READ_NATIVE_MAX_EXT);
1533 /* Refuse if no sectors are addressable (e.g. medium not inserted) */
1534 if (s->nb_sectors == 0) {
1535 ide_abort_command(s);
1539 ide_cmd_lba48_transform(s, lba48);
1540 ide_set_sector(s, s->nb_sectors - 1);
1545 static bool cmd_check_power_mode(IDEState *s, uint8_t cmd)
1547 s->nsector = 0xff; /* device active or idle */
1551 static bool cmd_set_features(IDEState *s, uint8_t cmd)
1553 uint16_t *identify_data;
1556 ide_abort_command(s);
1560 /* XXX: valid for CDROM ? */
1561 switch (s->feature) {
1562 case 0x02: /* write cache enable */
1563 blk_set_enable_write_cache(s->blk, true);
1564 identify_data = (uint16_t *)s->identify_data;
1565 put_le16(identify_data + 85, (1 << 14) | (1 << 5) | 1);
1567 case 0x82: /* write cache disable */
1568 blk_set_enable_write_cache(s->blk, false);
1569 identify_data = (uint16_t *)s->identify_data;
1570 put_le16(identify_data + 85, (1 << 14) | 1);
1573 case 0xcc: /* reverting to power-on defaults enable */
1574 case 0x66: /* reverting to power-on defaults disable */
1575 case 0xaa: /* read look-ahead enable */
1576 case 0x55: /* read look-ahead disable */
1577 case 0x05: /* set advanced power management mode */
1578 case 0x85: /* disable advanced power management mode */
1579 case 0x69: /* NOP */
1580 case 0x67: /* NOP */
1581 case 0x96: /* NOP */
1582 case 0x9a: /* NOP */
1583 case 0x42: /* enable Automatic Acoustic Mode */
1584 case 0xc2: /* disable Automatic Acoustic Mode */
1586 case 0x03: /* set transfer mode */
1588 uint8_t val = s->nsector & 0x07;
1589 identify_data = (uint16_t *)s->identify_data;
1591 switch (s->nsector >> 3) {
1592 case 0x00: /* pio default */
1593 case 0x01: /* pio mode */
1594 put_le16(identify_data + 62, 0x07);
1595 put_le16(identify_data + 63, 0x07);
1596 put_le16(identify_data + 88, 0x3f);
1598 case 0x02: /* sigle word dma mode*/
1599 put_le16(identify_data + 62, 0x07 | (1 << (val + 8)));
1600 put_le16(identify_data + 63, 0x07);
1601 put_le16(identify_data + 88, 0x3f);
1603 case 0x04: /* mdma mode */
1604 put_le16(identify_data + 62, 0x07);
1605 put_le16(identify_data + 63, 0x07 | (1 << (val + 8)));
1606 put_le16(identify_data + 88, 0x3f);
1608 case 0x08: /* udma mode */
1609 put_le16(identify_data + 62, 0x07);
1610 put_le16(identify_data + 63, 0x07);
1611 put_le16(identify_data + 88, 0x3f | (1 << (val + 8)));
1621 ide_abort_command(s);
1626 /*** ATAPI commands ***/
1628 static bool cmd_identify_packet(IDEState *s, uint8_t cmd)
1630 ide_atapi_identify(s);
1631 s->status = READY_STAT | SEEK_STAT;
1632 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1633 ide_set_irq(s->bus);
1637 static bool cmd_exec_dev_diagnostic(IDEState *s, uint8_t cmd)
1639 ide_set_signature(s);
1641 if (s->drive_kind == IDE_CD) {
1642 s->status = 0; /* ATAPI spec (v6) section 9.10 defines packet
1643 * devices to return a clear status register
1644 * with READY_STAT *not* set. */
1647 s->status = READY_STAT | SEEK_STAT;
1648 /* The bits of the error register are not as usual for this command!
1649 * They are part of the regular output (this is why ERR_STAT isn't set)
1650 * Device 0 passed, Device 1 passed or not present. */
1652 ide_set_irq(s->bus);
1658 static bool cmd_packet(IDEState *s, uint8_t cmd)
1660 /* overlapping commands not supported */
1661 if (s->feature & 0x02) {
1662 ide_abort_command(s);
1666 s->status = READY_STAT | SEEK_STAT;
1667 s->atapi_dma = s->feature & 1;
1669 s->dma_cmd = IDE_DMA_ATAPI;
1672 ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
1678 /*** CF-ATA commands ***/
1680 static bool cmd_cfa_req_ext_error_code(IDEState *s, uint8_t cmd)
1682 s->error = 0x09; /* miscellaneous error */
1683 s->status = READY_STAT | SEEK_STAT;
1684 ide_set_irq(s->bus);
1689 static bool cmd_cfa_erase_sectors(IDEState *s, uint8_t cmd)
1691 /* WIN_SECURITY_FREEZE_LOCK has the same ID as CFA_WEAR_LEVEL and is
1692 * required for Windows 8 to work with AHCI */
1694 if (cmd == CFA_WEAR_LEVEL) {
1698 if (cmd == CFA_ERASE_SECTORS) {
1699 s->media_changed = 1;
1705 static bool cmd_cfa_translate_sector(IDEState *s, uint8_t cmd)
1707 s->status = READY_STAT | SEEK_STAT;
1709 memset(s->io_buffer, 0, 0x200);
1710 s->io_buffer[0x00] = s->hcyl; /* Cyl MSB */
1711 s->io_buffer[0x01] = s->lcyl; /* Cyl LSB */
1712 s->io_buffer[0x02] = s->select; /* Head */
1713 s->io_buffer[0x03] = s->sector; /* Sector */
1714 s->io_buffer[0x04] = ide_get_sector(s) >> 16; /* LBA MSB */
1715 s->io_buffer[0x05] = ide_get_sector(s) >> 8; /* LBA */
1716 s->io_buffer[0x06] = ide_get_sector(s) >> 0; /* LBA LSB */
1717 s->io_buffer[0x13] = 0x00; /* Erase flag */
1718 s->io_buffer[0x18] = 0x00; /* Hot count */
1719 s->io_buffer[0x19] = 0x00; /* Hot count */
1720 s->io_buffer[0x1a] = 0x01; /* Hot count */
1722 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1723 ide_set_irq(s->bus);
1728 static bool cmd_cfa_access_metadata_storage(IDEState *s, uint8_t cmd)
1730 switch (s->feature) {
1731 case 0x02: /* Inquiry Metadata Storage */
1732 ide_cfata_metadata_inquiry(s);
1734 case 0x03: /* Read Metadata Storage */
1735 ide_cfata_metadata_read(s);
1737 case 0x04: /* Write Metadata Storage */
1738 ide_cfata_metadata_write(s);
1741 ide_abort_command(s);
1745 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1746 s->status = 0x00; /* NOTE: READY is _not_ set */
1747 ide_set_irq(s->bus);
1752 static bool cmd_ibm_sense_condition(IDEState *s, uint8_t cmd)
1754 switch (s->feature) {
1755 case 0x01: /* sense temperature in device */
1756 s->nsector = 0x50; /* +20 C */
1759 ide_abort_command(s);
1767 /*** SMART commands ***/
1769 static bool cmd_smart(IDEState *s, uint8_t cmd)
1773 if (s->hcyl != 0xc2 || s->lcyl != 0x4f) {
1777 if (!s->smart_enabled && s->feature != SMART_ENABLE) {
1781 switch (s->feature) {
1783 s->smart_enabled = 0;
1787 s->smart_enabled = 1;
1790 case SMART_ATTR_AUTOSAVE:
1791 switch (s->sector) {
1793 s->smart_autosave = 0;
1796 s->smart_autosave = 1;
1804 if (!s->smart_errors) {
1813 case SMART_READ_THRESH:
1814 memset(s->io_buffer, 0, 0x200);
1815 s->io_buffer[0] = 0x01; /* smart struct version */
1817 for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
1818 s->io_buffer[2 + 0 + (n * 12)] = smart_attributes[n][0];
1819 s->io_buffer[2 + 1 + (n * 12)] = smart_attributes[n][11];
1823 for (n = 0; n < 511; n++) {
1824 s->io_buffer[511] += s->io_buffer[n];
1826 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1828 s->status = READY_STAT | SEEK_STAT;
1829 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1830 ide_set_irq(s->bus);
1833 case SMART_READ_DATA:
1834 memset(s->io_buffer, 0, 0x200);
1835 s->io_buffer[0] = 0x01; /* smart struct version */
1837 for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
1839 for (i = 0; i < 11; i++) {
1840 s->io_buffer[2 + i + (n * 12)] = smart_attributes[n][i];
1844 s->io_buffer[362] = 0x02 | (s->smart_autosave ? 0x80 : 0x00);
1845 if (s->smart_selftest_count == 0) {
1846 s->io_buffer[363] = 0;
1849 s->smart_selftest_data[3 +
1850 (s->smart_selftest_count - 1) *
1853 s->io_buffer[364] = 0x20;
1854 s->io_buffer[365] = 0x01;
1855 /* offline data collection capacity: execute + self-test*/
1856 s->io_buffer[367] = (1 << 4 | 1 << 3 | 1);
1857 s->io_buffer[368] = 0x03; /* smart capability (1) */
1858 s->io_buffer[369] = 0x00; /* smart capability (2) */
1859 s->io_buffer[370] = 0x01; /* error logging supported */
1860 s->io_buffer[372] = 0x02; /* minutes for poll short test */
1861 s->io_buffer[373] = 0x36; /* minutes for poll ext test */
1862 s->io_buffer[374] = 0x01; /* minutes for poll conveyance */
1864 for (n = 0; n < 511; n++) {
1865 s->io_buffer[511] += s->io_buffer[n];
1867 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1869 s->status = READY_STAT | SEEK_STAT;
1870 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1871 ide_set_irq(s->bus);
1874 case SMART_READ_LOG:
1875 switch (s->sector) {
1876 case 0x01: /* summary smart error log */
1877 memset(s->io_buffer, 0, 0x200);
1878 s->io_buffer[0] = 0x01;
1879 s->io_buffer[1] = 0x00; /* no error entries */
1880 s->io_buffer[452] = s->smart_errors & 0xff;
1881 s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8;
1883 for (n = 0; n < 511; n++) {
1884 s->io_buffer[511] += s->io_buffer[n];
1886 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1888 case 0x06: /* smart self test log */
1889 memset(s->io_buffer, 0, 0x200);
1890 s->io_buffer[0] = 0x01;
1891 if (s->smart_selftest_count == 0) {
1892 s->io_buffer[508] = 0;
1894 s->io_buffer[508] = s->smart_selftest_count;
1895 for (n = 2; n < 506; n++) {
1896 s->io_buffer[n] = s->smart_selftest_data[n];
1900 for (n = 0; n < 511; n++) {
1901 s->io_buffer[511] += s->io_buffer[n];
1903 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1908 s->status = READY_STAT | SEEK_STAT;
1909 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1910 ide_set_irq(s->bus);
1913 case SMART_EXECUTE_OFFLINE:
1914 switch (s->sector) {
1915 case 0: /* off-line routine */
1916 case 1: /* short self test */
1917 case 2: /* extended self test */
1918 s->smart_selftest_count++;
1919 if (s->smart_selftest_count > 21) {
1920 s->smart_selftest_count = 1;
1922 n = 2 + (s->smart_selftest_count - 1) * 24;
1923 s->smart_selftest_data[n] = s->sector;
1924 s->smart_selftest_data[n + 1] = 0x00; /* OK and finished */
1925 s->smart_selftest_data[n + 2] = 0x34; /* hour count lsb */
1926 s->smart_selftest_data[n + 3] = 0x12; /* hour count msb */
1935 ide_abort_command(s);
1939 #define HD_OK (1u << IDE_HD)
1940 #define CD_OK (1u << IDE_CD)
1941 #define CFA_OK (1u << IDE_CFATA)
1942 #define HD_CFA_OK (HD_OK | CFA_OK)
1943 #define ALL_OK (HD_OK | CD_OK | CFA_OK)
1945 /* Set the Disk Seek Completed status bit during completion */
1946 #define SET_DSC (1u << 8)
1948 /* See ACS-2 T13/2015-D Table B.2 Command codes */
1949 static const struct {
1950 /* Returns true if the completion code should be run */
1951 bool (*handler)(IDEState *s, uint8_t cmd);
1953 } ide_cmd_table[0x100] = {
1954 /* NOP not implemented, mandatory for CD */
1955 [CFA_REQ_EXT_ERROR_CODE] = { cmd_cfa_req_ext_error_code, CFA_OK },
1956 [WIN_DSM] = { cmd_data_set_management, HD_CFA_OK },
1957 [WIN_DEVICE_RESET] = { cmd_device_reset, CD_OK },
1958 [WIN_RECAL] = { cmd_nop, HD_CFA_OK | SET_DSC},
1959 [WIN_READ] = { cmd_read_pio, ALL_OK },
1960 [WIN_READ_ONCE] = { cmd_read_pio, HD_CFA_OK },
1961 [WIN_READ_EXT] = { cmd_read_pio, HD_CFA_OK },
1962 [WIN_READDMA_EXT] = { cmd_read_dma, HD_CFA_OK },
1963 [WIN_READ_NATIVE_MAX_EXT] = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
1964 [WIN_MULTREAD_EXT] = { cmd_read_multiple, HD_CFA_OK },
1965 [WIN_WRITE] = { cmd_write_pio, HD_CFA_OK },
1966 [WIN_WRITE_ONCE] = { cmd_write_pio, HD_CFA_OK },
1967 [WIN_WRITE_EXT] = { cmd_write_pio, HD_CFA_OK },
1968 [WIN_WRITEDMA_EXT] = { cmd_write_dma, HD_CFA_OK },
1969 [CFA_WRITE_SECT_WO_ERASE] = { cmd_write_pio, CFA_OK },
1970 [WIN_MULTWRITE_EXT] = { cmd_write_multiple, HD_CFA_OK },
1971 [WIN_WRITE_VERIFY] = { cmd_write_pio, HD_CFA_OK },
1972 [WIN_VERIFY] = { cmd_verify, HD_CFA_OK | SET_DSC },
1973 [WIN_VERIFY_ONCE] = { cmd_verify, HD_CFA_OK | SET_DSC },
1974 [WIN_VERIFY_EXT] = { cmd_verify, HD_CFA_OK | SET_DSC },
1975 [WIN_SEEK] = { cmd_seek, HD_CFA_OK | SET_DSC },
1976 [CFA_TRANSLATE_SECTOR] = { cmd_cfa_translate_sector, CFA_OK },
1977 [WIN_DIAGNOSE] = { cmd_exec_dev_diagnostic, ALL_OK },
1978 [WIN_SPECIFY] = { cmd_nop, HD_CFA_OK | SET_DSC },
1979 [WIN_STANDBYNOW2] = { cmd_nop, HD_CFA_OK },
1980 [WIN_IDLEIMMEDIATE2] = { cmd_nop, HD_CFA_OK },
1981 [WIN_STANDBY2] = { cmd_nop, HD_CFA_OK },
1982 [WIN_SETIDLE2] = { cmd_nop, HD_CFA_OK },
1983 [WIN_CHECKPOWERMODE2] = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
1984 [WIN_SLEEPNOW2] = { cmd_nop, HD_CFA_OK },
1985 [WIN_PACKETCMD] = { cmd_packet, CD_OK },
1986 [WIN_PIDENTIFY] = { cmd_identify_packet, CD_OK },
1987 [WIN_SMART] = { cmd_smart, HD_CFA_OK | SET_DSC },
1988 [CFA_ACCESS_METADATA_STORAGE] = { cmd_cfa_access_metadata_storage, CFA_OK },
1989 [CFA_ERASE_SECTORS] = { cmd_cfa_erase_sectors, CFA_OK | SET_DSC },
1990 [WIN_MULTREAD] = { cmd_read_multiple, HD_CFA_OK },
1991 [WIN_MULTWRITE] = { cmd_write_multiple, HD_CFA_OK },
1992 [WIN_SETMULT] = { cmd_set_multiple_mode, HD_CFA_OK | SET_DSC },
1993 [WIN_READDMA] = { cmd_read_dma, HD_CFA_OK },
1994 [WIN_READDMA_ONCE] = { cmd_read_dma, HD_CFA_OK },
1995 [WIN_WRITEDMA] = { cmd_write_dma, HD_CFA_OK },
1996 [WIN_WRITEDMA_ONCE] = { cmd_write_dma, HD_CFA_OK },
1997 [CFA_WRITE_MULTI_WO_ERASE] = { cmd_write_multiple, CFA_OK },
1998 [WIN_STANDBYNOW1] = { cmd_nop, HD_CFA_OK },
1999 [WIN_IDLEIMMEDIATE] = { cmd_nop, HD_CFA_OK },
2000 [WIN_STANDBY] = { cmd_nop, HD_CFA_OK },
2001 [WIN_SETIDLE1] = { cmd_nop, HD_CFA_OK },
2002 [WIN_CHECKPOWERMODE1] = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
2003 [WIN_SLEEPNOW1] = { cmd_nop, HD_CFA_OK },
2004 [WIN_FLUSH_CACHE] = { cmd_flush_cache, ALL_OK },
2005 [WIN_FLUSH_CACHE_EXT] = { cmd_flush_cache, HD_CFA_OK },
2006 [WIN_IDENTIFY] = { cmd_identify, ALL_OK },
2007 [WIN_SETFEATURES] = { cmd_set_features, ALL_OK | SET_DSC },
2008 [IBM_SENSE_CONDITION] = { cmd_ibm_sense_condition, CFA_OK | SET_DSC },
2009 [CFA_WEAR_LEVEL] = { cmd_cfa_erase_sectors, HD_CFA_OK | SET_DSC },
2010 [WIN_READ_NATIVE_MAX] = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
2013 static bool ide_cmd_permitted(IDEState *s, uint32_t cmd)
2015 return cmd < ARRAY_SIZE(ide_cmd_table)
2016 && (ide_cmd_table[cmd].flags & (1u << s->drive_kind));
2019 void ide_exec_cmd(IDEBus *bus, uint32_t val)
2024 #if defined(DEBUG_IDE)
2025 printf("ide: CMD=%02x\n", val);
2027 s = idebus_active_if(bus);
2028 /* ignore commands to non existent slave */
2029 if (s != bus->ifs && !s->blk) {
2033 /* Only RESET is allowed while BSY and/or DRQ are set,
2034 * and only to ATAPI devices. */
2035 if (s->status & (BUSY_STAT|DRQ_STAT)) {
2036 if (val != WIN_DEVICE_RESET || s->drive_kind != IDE_CD) {
2041 if (!ide_cmd_permitted(s, val)) {
2042 ide_abort_command(s);
2043 ide_set_irq(s->bus);
2047 s->status = READY_STAT | BUSY_STAT;
2049 s->io_buffer_offset = 0;
2051 complete = ide_cmd_table[val].handler(s, val);
2053 s->status &= ~BUSY_STAT;
2054 assert(!!s->error == !!(s->status & ERR_STAT));
2056 if ((ide_cmd_table[val].flags & SET_DSC) && !s->error) {
2057 s->status |= SEEK_STAT;
2061 ide_set_irq(s->bus);
2065 uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
2067 IDEBus *bus = opaque;
2068 IDEState *s = idebus_active_if(bus);
2073 /* FIXME: HOB readback uses bit 7, but it's always set right now */
2074 //hob = s->select & (1 << 7);
2081 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
2082 (s != bus->ifs && !s->blk)) {
2087 ret = s->hob_feature;
2091 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2094 ret = s->nsector & 0xff;
2096 ret = s->hob_nsector;
2100 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2105 ret = s->hob_sector;
2109 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2118 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2127 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2135 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
2136 (s != bus->ifs && !s->blk)) {
2141 qemu_irq_lower(bus->irq);
2145 printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
2150 uint32_t ide_status_read(void *opaque, uint32_t addr)
2152 IDEBus *bus = opaque;
2153 IDEState *s = idebus_active_if(bus);
2156 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
2157 (s != bus->ifs && !s->blk)) {
2163 printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
2168 void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val)
2170 IDEBus *bus = opaque;
2175 printf("ide: write control addr=0x%x val=%02x\n", addr, val);
2177 /* common for both drives */
2178 if (!(bus->cmd & IDE_CMD_RESET) &&
2179 (val & IDE_CMD_RESET)) {
2180 /* reset low to high */
2181 for(i = 0;i < 2; i++) {
2183 s->status = BUSY_STAT | SEEK_STAT;
2186 } else if ((bus->cmd & IDE_CMD_RESET) &&
2187 !(val & IDE_CMD_RESET)) {
2189 for(i = 0;i < 2; i++) {
2191 if (s->drive_kind == IDE_CD)
2192 s->status = 0x00; /* NOTE: READY is _not_ set */
2194 s->status = READY_STAT | SEEK_STAT;
2195 ide_set_signature(s);
2203 * Returns true if the running PIO transfer is a PIO out (i.e. data is
2204 * transferred from the device to the guest), false if it's a PIO in
2206 static bool ide_is_pio_out(IDEState *s)
2208 if (s->end_transfer_func == ide_sector_write ||
2209 s->end_transfer_func == ide_atapi_cmd) {
2211 } else if (s->end_transfer_func == ide_sector_read ||
2212 s->end_transfer_func == ide_transfer_stop ||
2213 s->end_transfer_func == ide_atapi_cmd_reply_end ||
2214 s->end_transfer_func == ide_dummy_transfer_stop) {
2221 void ide_data_writew(void *opaque, uint32_t addr, uint32_t val)
2223 IDEBus *bus = opaque;
2224 IDEState *s = idebus_active_if(bus);
2227 /* PIO data access allowed only when DRQ bit is set. The result of a write
2228 * during PIO out is indeterminate, just ignore it. */
2229 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
2234 if (p + 2 > s->data_end) {
2238 *(uint16_t *)p = le16_to_cpu(val);
2241 if (p >= s->data_end) {
2242 s->status &= ~DRQ_STAT;
2243 s->end_transfer_func(s);
2247 uint32_t ide_data_readw(void *opaque, uint32_t addr)
2249 IDEBus *bus = opaque;
2250 IDEState *s = idebus_active_if(bus);
2254 /* PIO data access allowed only when DRQ bit is set. The result of a read
2255 * during PIO in is indeterminate, return 0 and don't move forward. */
2256 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
2261 if (p + 2 > s->data_end) {
2265 ret = cpu_to_le16(*(uint16_t *)p);
2268 if (p >= s->data_end) {
2269 s->status &= ~DRQ_STAT;
2270 s->end_transfer_func(s);
2275 void ide_data_writel(void *opaque, uint32_t addr, uint32_t val)
2277 IDEBus *bus = opaque;
2278 IDEState *s = idebus_active_if(bus);
2281 /* PIO data access allowed only when DRQ bit is set. The result of a write
2282 * during PIO out is indeterminate, just ignore it. */
2283 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
2288 if (p + 4 > s->data_end) {
2292 *(uint32_t *)p = le32_to_cpu(val);
2295 if (p >= s->data_end) {
2296 s->status &= ~DRQ_STAT;
2297 s->end_transfer_func(s);
2301 uint32_t ide_data_readl(void *opaque, uint32_t addr)
2303 IDEBus *bus = opaque;
2304 IDEState *s = idebus_active_if(bus);
2308 /* PIO data access allowed only when DRQ bit is set. The result of a read
2309 * during PIO in is indeterminate, return 0 and don't move forward. */
2310 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
2315 if (p + 4 > s->data_end) {
2319 ret = cpu_to_le32(*(uint32_t *)p);
2322 if (p >= s->data_end) {
2323 s->status &= ~DRQ_STAT;
2324 s->end_transfer_func(s);
2329 static void ide_dummy_transfer_stop(IDEState *s)
2331 s->data_ptr = s->io_buffer;
2332 s->data_end = s->io_buffer;
2333 s->io_buffer[0] = 0xff;
2334 s->io_buffer[1] = 0xff;
2335 s->io_buffer[2] = 0xff;
2336 s->io_buffer[3] = 0xff;
2339 void ide_bus_reset(IDEBus *bus)
2343 ide_reset(&bus->ifs[0]);
2344 ide_reset(&bus->ifs[1]);
2347 /* pending async DMA */
2348 if (bus->dma->aiocb) {
2350 printf("aio_cancel\n");
2352 blk_aio_cancel(bus->dma->aiocb);
2353 bus->dma->aiocb = NULL;
2356 /* reset dma provider too */
2357 if (bus->dma->ops->reset) {
2358 bus->dma->ops->reset(bus->dma);
2362 static bool ide_cd_is_tray_open(void *opaque)
2364 return ((IDEState *)opaque)->tray_open;
2367 static bool ide_cd_is_medium_locked(void *opaque)
2369 return ((IDEState *)opaque)->tray_locked;
2372 static void ide_resize_cb(void *opaque)
2374 IDEState *s = opaque;
2375 uint64_t nb_sectors;
2377 if (!s->identify_set) {
2381 blk_get_geometry(s->blk, &nb_sectors);
2382 s->nb_sectors = nb_sectors;
2384 /* Update the identify data buffer. */
2385 if (s->drive_kind == IDE_CFATA) {
2386 ide_cfata_identify_size(s);
2388 /* IDE_CD uses a different set of callbacks entirely. */
2389 assert(s->drive_kind != IDE_CD);
2390 ide_identify_size(s);
2394 static const BlockDevOps ide_cd_block_ops = {
2395 .change_media_cb = ide_cd_change_cb,
2396 .eject_request_cb = ide_cd_eject_request_cb,
2397 .is_tray_open = ide_cd_is_tray_open,
2398 .is_medium_locked = ide_cd_is_medium_locked,
2401 static const BlockDevOps ide_hd_block_ops = {
2402 .resize_cb = ide_resize_cb,
2405 int ide_init_drive(IDEState *s, BlockBackend *blk, IDEDriveKind kind,
2406 const char *version, const char *serial, const char *model,
2408 uint32_t cylinders, uint32_t heads, uint32_t secs,
2411 uint64_t nb_sectors;
2414 s->drive_kind = kind;
2416 blk_get_geometry(blk, &nb_sectors);
2417 s->cylinders = cylinders;
2420 s->chs_trans = chs_trans;
2421 s->nb_sectors = nb_sectors;
2423 /* The SMART values should be preserved across power cycles
2425 s->smart_enabled = 1;
2426 s->smart_autosave = 1;
2427 s->smart_errors = 0;
2428 s->smart_selftest_count = 0;
2429 if (kind == IDE_CD) {
2430 blk_set_dev_ops(blk, &ide_cd_block_ops, s);
2431 blk_set_guest_block_size(blk, 2048);
2433 if (!blk_is_inserted(s->blk)) {
2434 error_report("Device needs media, but drive is empty");
2437 if (blk_is_read_only(blk)) {
2438 error_report("Can't use a read-only drive");
2441 blk_set_dev_ops(blk, &ide_hd_block_ops, s);
2444 pstrcpy(s->drive_serial_str, sizeof(s->drive_serial_str), serial);
2446 snprintf(s->drive_serial_str, sizeof(s->drive_serial_str),
2447 "QM%05d", s->drive_serial);
2450 pstrcpy(s->drive_model_str, sizeof(s->drive_model_str), model);
2454 strcpy(s->drive_model_str, "QEMU DVD-ROM");
2457 strcpy(s->drive_model_str, "QEMU MICRODRIVE");
2460 strcpy(s->drive_model_str, "QEMU HARDDISK");
2466 pstrcpy(s->version, sizeof(s->version), version);
2468 pstrcpy(s->version, sizeof(s->version), qemu_hw_version());
2472 blk_iostatus_enable(blk);
2476 static void ide_init1(IDEBus *bus, int unit)
2478 static int drive_serial = 1;
2479 IDEState *s = &bus->ifs[unit];
2483 s->drive_serial = drive_serial++;
2484 /* we need at least 2k alignment for accessing CDROMs using O_DIRECT */
2485 s->io_buffer_total_len = IDE_DMA_BUF_SECTORS*512 + 4;
2486 s->io_buffer = qemu_memalign(2048, s->io_buffer_total_len);
2487 memset(s->io_buffer, 0, s->io_buffer_total_len);
2489 s->smart_selftest_data = blk_blockalign(s->blk, 512);
2490 memset(s->smart_selftest_data, 0, 512);
2492 s->sector_write_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
2493 ide_sector_write_timer_cb, s);
2496 static int ide_nop_int(IDEDMA *dma, int x)
2501 static void ide_nop(IDEDMA *dma)
2505 static int32_t ide_nop_int32(IDEDMA *dma, int32_t l)
2510 static const IDEDMAOps ide_dma_nop_ops = {
2511 .prepare_buf = ide_nop_int32,
2512 .restart_dma = ide_nop,
2513 .rw_buf = ide_nop_int,
2516 static void ide_restart_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
2518 s->unit = s->bus->retry_unit;
2519 ide_set_sector(s, s->bus->retry_sector_num);
2520 s->nsector = s->bus->retry_nsector;
2521 s->bus->dma->ops->restart_dma(s->bus->dma);
2522 s->io_buffer_size = 0;
2523 s->dma_cmd = dma_cmd;
2524 ide_start_dma(s, ide_dma_cb);
2527 static void ide_restart_bh(void *opaque)
2529 IDEBus *bus = opaque;
2534 qemu_bh_delete(bus->bh);
2537 error_status = bus->error_status;
2538 if (bus->error_status == 0) {
2542 s = idebus_active_if(bus);
2543 is_read = (bus->error_status & IDE_RETRY_READ) != 0;
2545 /* The error status must be cleared before resubmitting the request: The
2546 * request may fail again, and this case can only be distinguished if the
2547 * called function can set a new error status. */
2548 bus->error_status = 0;
2550 /* The HBA has generically asked to be kicked on retry */
2551 if (error_status & IDE_RETRY_HBA) {
2552 if (s->bus->dma->ops->restart) {
2553 s->bus->dma->ops->restart(s->bus->dma);
2555 } else if (IS_IDE_RETRY_DMA(error_status)) {
2556 if (error_status & IDE_RETRY_TRIM) {
2557 ide_restart_dma(s, IDE_DMA_TRIM);
2559 ide_restart_dma(s, is_read ? IDE_DMA_READ : IDE_DMA_WRITE);
2561 } else if (IS_IDE_RETRY_PIO(error_status)) {
2565 ide_sector_write(s);
2567 } else if (error_status & IDE_RETRY_FLUSH) {
2569 } else if (IS_IDE_RETRY_ATAPI(error_status)) {
2570 assert(s->end_transfer_func == ide_atapi_cmd);
2571 ide_atapi_dma_restart(s);
2577 static void ide_restart_cb(void *opaque, int running, RunState state)
2579 IDEBus *bus = opaque;
2585 bus->bh = qemu_bh_new(ide_restart_bh, bus);
2586 qemu_bh_schedule(bus->bh);
2590 void ide_register_restart_cb(IDEBus *bus)
2592 if (bus->dma->ops->restart_dma) {
2593 bus->vmstate = qemu_add_vm_change_state_handler(ide_restart_cb, bus);
2597 static IDEDMA ide_dma_nop = {
2598 .ops = &ide_dma_nop_ops,
2602 void ide_init2(IDEBus *bus, qemu_irq irq)
2606 for(i = 0; i < 2; i++) {
2608 ide_reset(&bus->ifs[i]);
2611 bus->dma = &ide_dma_nop;
2614 void ide_exit(IDEState *s)
2616 timer_del(s->sector_write_timer);
2617 timer_free(s->sector_write_timer);
2618 qemu_vfree(s->smart_selftest_data);
2619 qemu_vfree(s->io_buffer);
2622 static const MemoryRegionPortio ide_portio_list[] = {
2623 { 0, 8, 1, .read = ide_ioport_read, .write = ide_ioport_write },
2624 { 0, 1, 2, .read = ide_data_readw, .write = ide_data_writew },
2625 { 0, 1, 4, .read = ide_data_readl, .write = ide_data_writel },
2626 PORTIO_END_OF_LIST(),
2629 static const MemoryRegionPortio ide_portio2_list[] = {
2630 { 0, 1, 1, .read = ide_status_read, .write = ide_cmd_write },
2631 PORTIO_END_OF_LIST(),
2634 void ide_init_ioport(IDEBus *bus, ISADevice *dev, int iobase, int iobase2)
2636 /* ??? Assume only ISA and PCI configurations, and that the PCI-ISA
2637 bridge has been setup properly to always register with ISA. */
2638 isa_register_portio_list(dev, &bus->portio_list,
2639 iobase, ide_portio_list, bus, "ide");
2642 isa_register_portio_list(dev, &bus->portio2_list,
2643 iobase2, ide_portio2_list, bus, "ide");
2647 static bool is_identify_set(void *opaque, int version_id)
2649 IDEState *s = opaque;
2651 return s->identify_set != 0;
2654 static EndTransferFunc* transfer_end_table[] = {
2658 ide_atapi_cmd_reply_end,
2660 ide_dummy_transfer_stop,
2663 static int transfer_end_table_idx(EndTransferFunc *fn)
2667 for (i = 0; i < ARRAY_SIZE(transfer_end_table); i++)
2668 if (transfer_end_table[i] == fn)
2674 static int ide_drive_post_load(void *opaque, int version_id)
2676 IDEState *s = opaque;
2678 if (s->blk && s->identify_set) {
2679 blk_set_enable_write_cache(s->blk, !!(s->identify_data[85] & (1 << 5)));
2684 static int ide_drive_pio_post_load(void *opaque, int version_id)
2686 IDEState *s = opaque;
2688 if (s->end_transfer_fn_idx >= ARRAY_SIZE(transfer_end_table)) {
2691 s->end_transfer_func = transfer_end_table[s->end_transfer_fn_idx];
2692 s->data_ptr = s->io_buffer + s->cur_io_buffer_offset;
2693 s->data_end = s->data_ptr + s->cur_io_buffer_len;
2694 s->atapi_dma = s->feature & 1; /* as per cmd_packet */
2699 static void ide_drive_pio_pre_save(void *opaque)
2701 IDEState *s = opaque;
2704 s->cur_io_buffer_offset = s->data_ptr - s->io_buffer;
2705 s->cur_io_buffer_len = s->data_end - s->data_ptr;
2707 idx = transfer_end_table_idx(s->end_transfer_func);
2709 fprintf(stderr, "%s: invalid end_transfer_func for DRQ_STAT\n",
2711 s->end_transfer_fn_idx = 2;
2713 s->end_transfer_fn_idx = idx;
2717 static bool ide_drive_pio_state_needed(void *opaque)
2719 IDEState *s = opaque;
2721 return ((s->status & DRQ_STAT) != 0)
2722 || (s->bus->error_status & IDE_RETRY_PIO);
2725 static bool ide_tray_state_needed(void *opaque)
2727 IDEState *s = opaque;
2729 return s->tray_open || s->tray_locked;
2732 static bool ide_atapi_gesn_needed(void *opaque)
2734 IDEState *s = opaque;
2736 return s->events.new_media || s->events.eject_request;
2739 static bool ide_error_needed(void *opaque)
2741 IDEBus *bus = opaque;
2743 return (bus->error_status != 0);
2746 /* Fields for GET_EVENT_STATUS_NOTIFICATION ATAPI command */
2747 static const VMStateDescription vmstate_ide_atapi_gesn_state = {
2748 .name ="ide_drive/atapi/gesn_state",
2750 .minimum_version_id = 1,
2751 .needed = ide_atapi_gesn_needed,
2752 .fields = (VMStateField[]) {
2753 VMSTATE_BOOL(events.new_media, IDEState),
2754 VMSTATE_BOOL(events.eject_request, IDEState),
2755 VMSTATE_END_OF_LIST()
2759 static const VMStateDescription vmstate_ide_tray_state = {
2760 .name = "ide_drive/tray_state",
2762 .minimum_version_id = 1,
2763 .needed = ide_tray_state_needed,
2764 .fields = (VMStateField[]) {
2765 VMSTATE_BOOL(tray_open, IDEState),
2766 VMSTATE_BOOL(tray_locked, IDEState),
2767 VMSTATE_END_OF_LIST()
2771 static const VMStateDescription vmstate_ide_drive_pio_state = {
2772 .name = "ide_drive/pio_state",
2774 .minimum_version_id = 1,
2775 .pre_save = ide_drive_pio_pre_save,
2776 .post_load = ide_drive_pio_post_load,
2777 .needed = ide_drive_pio_state_needed,
2778 .fields = (VMStateField[]) {
2779 VMSTATE_INT32(req_nb_sectors, IDEState),
2780 VMSTATE_VARRAY_INT32(io_buffer, IDEState, io_buffer_total_len, 1,
2781 vmstate_info_uint8, uint8_t),
2782 VMSTATE_INT32(cur_io_buffer_offset, IDEState),
2783 VMSTATE_INT32(cur_io_buffer_len, IDEState),
2784 VMSTATE_UINT8(end_transfer_fn_idx, IDEState),
2785 VMSTATE_INT32(elementary_transfer_size, IDEState),
2786 VMSTATE_INT32(packet_transfer_size, IDEState),
2787 VMSTATE_END_OF_LIST()
2791 const VMStateDescription vmstate_ide_drive = {
2792 .name = "ide_drive",
2794 .minimum_version_id = 0,
2795 .post_load = ide_drive_post_load,
2796 .fields = (VMStateField[]) {
2797 VMSTATE_INT32(mult_sectors, IDEState),
2798 VMSTATE_INT32(identify_set, IDEState),
2799 VMSTATE_BUFFER_TEST(identify_data, IDEState, is_identify_set),
2800 VMSTATE_UINT8(feature, IDEState),
2801 VMSTATE_UINT8(error, IDEState),
2802 VMSTATE_UINT32(nsector, IDEState),
2803 VMSTATE_UINT8(sector, IDEState),
2804 VMSTATE_UINT8(lcyl, IDEState),
2805 VMSTATE_UINT8(hcyl, IDEState),
2806 VMSTATE_UINT8(hob_feature, IDEState),
2807 VMSTATE_UINT8(hob_sector, IDEState),
2808 VMSTATE_UINT8(hob_nsector, IDEState),
2809 VMSTATE_UINT8(hob_lcyl, IDEState),
2810 VMSTATE_UINT8(hob_hcyl, IDEState),
2811 VMSTATE_UINT8(select, IDEState),
2812 VMSTATE_UINT8(status, IDEState),
2813 VMSTATE_UINT8(lba48, IDEState),
2814 VMSTATE_UINT8(sense_key, IDEState),
2815 VMSTATE_UINT8(asc, IDEState),
2816 VMSTATE_UINT8_V(cdrom_changed, IDEState, 3),
2817 VMSTATE_END_OF_LIST()
2819 .subsections = (const VMStateDescription*[]) {
2820 &vmstate_ide_drive_pio_state,
2821 &vmstate_ide_tray_state,
2822 &vmstate_ide_atapi_gesn_state,
2827 static const VMStateDescription vmstate_ide_error_status = {
2828 .name ="ide_bus/error",
2830 .minimum_version_id = 1,
2831 .needed = ide_error_needed,
2832 .fields = (VMStateField[]) {
2833 VMSTATE_INT32(error_status, IDEBus),
2834 VMSTATE_INT64_V(retry_sector_num, IDEBus, 2),
2835 VMSTATE_UINT32_V(retry_nsector, IDEBus, 2),
2836 VMSTATE_UINT8_V(retry_unit, IDEBus, 2),
2837 VMSTATE_END_OF_LIST()
2841 const VMStateDescription vmstate_ide_bus = {
2844 .minimum_version_id = 1,
2845 .fields = (VMStateField[]) {
2846 VMSTATE_UINT8(cmd, IDEBus),
2847 VMSTATE_UINT8(unit, IDEBus),
2848 VMSTATE_END_OF_LIST()
2850 .subsections = (const VMStateDescription*[]) {
2851 &vmstate_ide_error_status,
2856 void ide_drive_get(DriveInfo **hd, int n)
2860 for (i = 0; i < n; i++) {
2861 hd[i] = drive_get_by_index(IF_IDE, i);