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 int ide_handle_rw_error(IDEState *s, int error, int op);
61 static void ide_dummy_transfer_stop(IDEState *s);
63 static void padstr(char *str, const char *src, int len)
66 for(i = 0; i < len; i++) {
75 static void put_le16(uint16_t *p, unsigned int v)
80 static void ide_identify_size(IDEState *s)
82 uint16_t *p = (uint16_t *)s->identify_data;
83 put_le16(p + 60, s->nb_sectors);
84 put_le16(p + 61, s->nb_sectors >> 16);
85 put_le16(p + 100, s->nb_sectors);
86 put_le16(p + 101, s->nb_sectors >> 16);
87 put_le16(p + 102, s->nb_sectors >> 32);
88 put_le16(p + 103, s->nb_sectors >> 48);
91 static void ide_identify(IDEState *s)
95 IDEDevice *dev = s->unit ? s->bus->slave : s->bus->master;
97 p = (uint16_t *)s->identify_data;
98 if (s->identify_set) {
101 memset(p, 0, sizeof(s->identify_data));
103 put_le16(p + 0, 0x0040);
104 put_le16(p + 1, s->cylinders);
105 put_le16(p + 3, s->heads);
106 put_le16(p + 4, 512 * s->sectors); /* XXX: retired, remove ? */
107 put_le16(p + 5, 512); /* XXX: retired, remove ? */
108 put_le16(p + 6, s->sectors);
109 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
110 put_le16(p + 20, 3); /* XXX: retired, remove ? */
111 put_le16(p + 21, 512); /* cache size in sectors */
112 put_le16(p + 22, 4); /* ecc bytes */
113 padstr((char *)(p + 23), s->version, 8); /* firmware version */
114 padstr((char *)(p + 27), s->drive_model_str, 40); /* model */
115 #if MAX_MULT_SECTORS > 1
116 put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
118 put_le16(p + 48, 1); /* dword I/O */
119 put_le16(p + 49, (1 << 11) | (1 << 9) | (1 << 8)); /* DMA and LBA supported */
120 put_le16(p + 51, 0x200); /* PIO transfer cycle */
121 put_le16(p + 52, 0x200); /* DMA transfer cycle */
122 put_le16(p + 53, 1 | (1 << 1) | (1 << 2)); /* words 54-58,64-70,88 are valid */
123 put_le16(p + 54, s->cylinders);
124 put_le16(p + 55, s->heads);
125 put_le16(p + 56, s->sectors);
126 oldsize = s->cylinders * s->heads * s->sectors;
127 put_le16(p + 57, oldsize);
128 put_le16(p + 58, oldsize >> 16);
130 put_le16(p + 59, 0x100 | s->mult_sectors);
131 /* *(p + 60) := nb_sectors -- see ide_identify_size */
132 /* *(p + 61) := nb_sectors >> 16 -- see ide_identify_size */
133 put_le16(p + 62, 0x07); /* single word dma0-2 supported */
134 put_le16(p + 63, 0x07); /* mdma0-2 supported */
135 put_le16(p + 64, 0x03); /* pio3-4 supported */
136 put_le16(p + 65, 120);
137 put_le16(p + 66, 120);
138 put_le16(p + 67, 120);
139 put_le16(p + 68, 120);
140 if (dev && dev->conf.discard_granularity) {
141 put_le16(p + 69, (1 << 14)); /* determinate TRIM behavior */
145 put_le16(p + 75, s->ncq_queues - 1);
147 put_le16(p + 76, (1 << 8));
150 put_le16(p + 80, 0xf0); /* ata3 -> ata6 supported */
151 put_le16(p + 81, 0x16); /* conforms to ata5 */
152 /* 14=NOP supported, 5=WCACHE supported, 0=SMART supported */
153 put_le16(p + 82, (1 << 14) | (1 << 5) | 1);
154 /* 13=flush_cache_ext,12=flush_cache,10=lba48 */
155 put_le16(p + 83, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10));
156 /* 14=set to 1, 8=has WWN, 1=SMART self test, 0=SMART error logging */
158 put_le16(p + 84, (1 << 14) | (1 << 8) | 0);
160 put_le16(p + 84, (1 << 14) | 0);
162 /* 14 = NOP supported, 5=WCACHE enabled, 0=SMART feature set enabled */
163 if (blk_enable_write_cache(s->blk)) {
164 put_le16(p + 85, (1 << 14) | (1 << 5) | 1);
166 put_le16(p + 85, (1 << 14) | 1);
168 /* 13=flush_cache_ext,12=flush_cache,10=lba48 */
169 put_le16(p + 86, (1 << 13) | (1 <<12) | (1 << 10));
170 /* 14=set to 1, 8=has WWN, 1=SMART self test, 0=SMART error logging */
172 put_le16(p + 87, (1 << 14) | (1 << 8) | 0);
174 put_le16(p + 87, (1 << 14) | 0);
176 put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
177 put_le16(p + 93, 1 | (1 << 14) | 0x2000);
178 /* *(p + 100) := nb_sectors -- see ide_identify_size */
179 /* *(p + 101) := nb_sectors >> 16 -- see ide_identify_size */
180 /* *(p + 102) := nb_sectors >> 32 -- see ide_identify_size */
181 /* *(p + 103) := nb_sectors >> 48 -- see ide_identify_size */
183 if (dev && dev->conf.physical_block_size)
184 put_le16(p + 106, 0x6000 | get_physical_block_exp(&dev->conf));
186 /* LE 16-bit words 111-108 contain 64-bit World Wide Name */
187 put_le16(p + 108, s->wwn >> 48);
188 put_le16(p + 109, s->wwn >> 32);
189 put_le16(p + 110, s->wwn >> 16);
190 put_le16(p + 111, s->wwn);
192 if (dev && dev->conf.discard_granularity) {
193 put_le16(p + 169, 1); /* TRIM support */
196 ide_identify_size(s);
200 memcpy(s->io_buffer, p, sizeof(s->identify_data));
203 static void ide_atapi_identify(IDEState *s)
207 p = (uint16_t *)s->identify_data;
208 if (s->identify_set) {
211 memset(p, 0, sizeof(s->identify_data));
213 /* Removable CDROM, 50us response, 12 byte packets */
214 put_le16(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0));
215 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
216 put_le16(p + 20, 3); /* buffer type */
217 put_le16(p + 21, 512); /* cache size in sectors */
218 put_le16(p + 22, 4); /* ecc bytes */
219 padstr((char *)(p + 23), s->version, 8); /* firmware version */
220 padstr((char *)(p + 27), s->drive_model_str, 40); /* model */
221 put_le16(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */
223 put_le16(p + 49, 1 << 9 | 1 << 8); /* DMA and LBA supported */
224 put_le16(p + 53, 7); /* words 64-70, 54-58, 88 valid */
225 put_le16(p + 62, 7); /* single word dma0-2 supported */
226 put_le16(p + 63, 7); /* mdma0-2 supported */
228 put_le16(p + 49, 1 << 9); /* LBA supported, no DMA */
229 put_le16(p + 53, 3); /* words 64-70, 54-58 valid */
230 put_le16(p + 63, 0x103); /* DMA modes XXX: may be incorrect */
232 put_le16(p + 64, 3); /* pio3-4 supported */
233 put_le16(p + 65, 0xb4); /* minimum DMA multiword tx cycle time */
234 put_le16(p + 66, 0xb4); /* recommended DMA multiword tx cycle time */
235 put_le16(p + 67, 0x12c); /* minimum PIO cycle time without flow control */
236 put_le16(p + 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */
238 put_le16(p + 71, 30); /* in ns */
239 put_le16(p + 72, 30); /* in ns */
242 put_le16(p + 75, s->ncq_queues - 1);
244 put_le16(p + 76, (1 << 8));
247 put_le16(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */
249 put_le16(p + 84, (1 << 8)); /* supports WWN for words 108-111 */
250 put_le16(p + 87, (1 << 8)); /* WWN enabled */
254 put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
258 /* LE 16-bit words 111-108 contain 64-bit World Wide Name */
259 put_le16(p + 108, s->wwn >> 48);
260 put_le16(p + 109, s->wwn >> 32);
261 put_le16(p + 110, s->wwn >> 16);
262 put_le16(p + 111, s->wwn);
268 memcpy(s->io_buffer, p, sizeof(s->identify_data));
271 static void ide_cfata_identify_size(IDEState *s)
273 uint16_t *p = (uint16_t *)s->identify_data;
274 put_le16(p + 7, s->nb_sectors >> 16); /* Sectors per card */
275 put_le16(p + 8, s->nb_sectors); /* Sectors per card */
276 put_le16(p + 60, s->nb_sectors); /* Total LBA sectors */
277 put_le16(p + 61, s->nb_sectors >> 16); /* Total LBA sectors */
280 static void ide_cfata_identify(IDEState *s)
285 p = (uint16_t *)s->identify_data;
286 if (s->identify_set) {
289 memset(p, 0, sizeof(s->identify_data));
291 cur_sec = s->cylinders * s->heads * s->sectors;
293 put_le16(p + 0, 0x848a); /* CF Storage Card signature */
294 put_le16(p + 1, s->cylinders); /* Default cylinders */
295 put_le16(p + 3, s->heads); /* Default heads */
296 put_le16(p + 6, s->sectors); /* Default sectors per track */
297 /* *(p + 7) := nb_sectors >> 16 -- see ide_cfata_identify_size */
298 /* *(p + 8) := nb_sectors -- see ide_cfata_identify_size */
299 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
300 put_le16(p + 22, 0x0004); /* ECC bytes */
301 padstr((char *) (p + 23), s->version, 8); /* Firmware Revision */
302 padstr((char *) (p + 27), s->drive_model_str, 40);/* Model number */
303 #if MAX_MULT_SECTORS > 1
304 put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
306 put_le16(p + 47, 0x0000);
308 put_le16(p + 49, 0x0f00); /* Capabilities */
309 put_le16(p + 51, 0x0002); /* PIO cycle timing mode */
310 put_le16(p + 52, 0x0001); /* DMA cycle timing mode */
311 put_le16(p + 53, 0x0003); /* Translation params valid */
312 put_le16(p + 54, s->cylinders); /* Current cylinders */
313 put_le16(p + 55, s->heads); /* Current heads */
314 put_le16(p + 56, s->sectors); /* Current sectors */
315 put_le16(p + 57, cur_sec); /* Current capacity */
316 put_le16(p + 58, cur_sec >> 16); /* Current capacity */
317 if (s->mult_sectors) /* Multiple sector setting */
318 put_le16(p + 59, 0x100 | s->mult_sectors);
319 /* *(p + 60) := nb_sectors -- see ide_cfata_identify_size */
320 /* *(p + 61) := nb_sectors >> 16 -- see ide_cfata_identify_size */
321 put_le16(p + 63, 0x0203); /* Multiword DMA capability */
322 put_le16(p + 64, 0x0001); /* Flow Control PIO support */
323 put_le16(p + 65, 0x0096); /* Min. Multiword DMA cycle */
324 put_le16(p + 66, 0x0096); /* Rec. Multiword DMA cycle */
325 put_le16(p + 68, 0x00b4); /* Min. PIO cycle time */
326 put_le16(p + 82, 0x400c); /* Command Set supported */
327 put_le16(p + 83, 0x7068); /* Command Set supported */
328 put_le16(p + 84, 0x4000); /* Features supported */
329 put_le16(p + 85, 0x000c); /* Command Set enabled */
330 put_le16(p + 86, 0x7044); /* Command Set enabled */
331 put_le16(p + 87, 0x4000); /* Features enabled */
332 put_le16(p + 91, 0x4060); /* Current APM level */
333 put_le16(p + 129, 0x0002); /* Current features option */
334 put_le16(p + 130, 0x0005); /* Reassigned sectors */
335 put_le16(p + 131, 0x0001); /* Initial power mode */
336 put_le16(p + 132, 0x0000); /* User signature */
337 put_le16(p + 160, 0x8100); /* Power requirement */
338 put_le16(p + 161, 0x8001); /* CF command set */
340 ide_cfata_identify_size(s);
344 memcpy(s->io_buffer, p, sizeof(s->identify_data));
347 static void ide_set_signature(IDEState *s)
349 s->select &= 0xf0; /* clear head */
353 if (s->drive_kind == IDE_CD) {
365 typedef struct TrimAIOCB {
375 static void trim_aio_cancel(BlockAIOCB *acb)
377 TrimAIOCB *iocb = container_of(acb, TrimAIOCB, common);
379 /* Exit the loop so ide_issue_trim_cb will not continue */
380 iocb->j = iocb->qiov->niov - 1;
381 iocb->i = (iocb->qiov->iov[iocb->j].iov_len / 8) - 1;
383 iocb->ret = -ECANCELED;
386 blk_aio_cancel_async(iocb->aiocb);
391 static const AIOCBInfo trim_aiocb_info = {
392 .aiocb_size = sizeof(TrimAIOCB),
393 .cancel_async = trim_aio_cancel,
396 static void ide_trim_bh_cb(void *opaque)
398 TrimAIOCB *iocb = opaque;
400 iocb->common.cb(iocb->common.opaque, iocb->ret);
402 qemu_bh_delete(iocb->bh);
404 qemu_aio_unref(iocb);
407 static void ide_issue_trim_cb(void *opaque, int ret)
409 TrimAIOCB *iocb = opaque;
411 while (iocb->j < iocb->qiov->niov) {
413 while (++iocb->i < iocb->qiov->iov[j].iov_len / 8) {
415 uint64_t *buffer = iocb->qiov->iov[j].iov_base;
417 /* 6-byte LBA + 2-byte range per entry */
418 uint64_t entry = le64_to_cpu(buffer[i]);
419 uint64_t sector = entry & 0x0000ffffffffffffULL;
420 uint16_t count = entry >> 48;
426 /* Got an entry! Submit and exit. */
427 iocb->aiocb = blk_aio_discard(iocb->blk, sector, count,
428 ide_issue_trim_cb, opaque);
441 qemu_bh_schedule(iocb->bh);
445 BlockAIOCB *ide_issue_trim(BlockBackend *blk,
446 int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
447 BlockCompletionFunc *cb, void *opaque)
451 iocb = blk_aio_get(&trim_aiocb_info, blk, cb, opaque);
453 iocb->bh = qemu_bh_new(ide_trim_bh_cb, iocb);
458 ide_issue_trim_cb(iocb, 0);
459 return &iocb->common;
462 void ide_abort_command(IDEState *s)
464 ide_transfer_stop(s);
465 s->status = READY_STAT | ERR_STAT;
469 /* prepare data transfer and tell what to do after */
470 void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
471 EndTransferFunc *end_transfer_func)
473 s->end_transfer_func = end_transfer_func;
475 s->data_end = buf + size;
476 if (!(s->status & ERR_STAT)) {
477 s->status |= DRQ_STAT;
479 if (s->bus->dma->ops->start_transfer) {
480 s->bus->dma->ops->start_transfer(s->bus->dma);
484 static void ide_cmd_done(IDEState *s)
486 if (s->bus->dma->ops->cmd_done) {
487 s->bus->dma->ops->cmd_done(s->bus->dma);
491 static void ide_transfer_halt(IDEState *s,
492 void(*end_transfer_func)(IDEState *),
495 s->end_transfer_func = end_transfer_func;
496 s->data_ptr = s->io_buffer;
497 s->data_end = s->io_buffer;
498 s->status &= ~DRQ_STAT;
504 void ide_transfer_stop(IDEState *s)
506 ide_transfer_halt(s, ide_transfer_stop, true);
509 static void ide_transfer_cancel(IDEState *s)
511 ide_transfer_halt(s, ide_transfer_cancel, false);
514 int64_t ide_get_sector(IDEState *s)
517 if (s->select & 0x40) {
520 sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) |
521 (s->lcyl << 8) | s->sector;
523 sector_num = ((int64_t)s->hob_hcyl << 40) |
524 ((int64_t) s->hob_lcyl << 32) |
525 ((int64_t) s->hob_sector << 24) |
526 ((int64_t) s->hcyl << 16) |
527 ((int64_t) s->lcyl << 8) | s->sector;
530 sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
531 (s->select & 0x0f) * s->sectors + (s->sector - 1);
536 void ide_set_sector(IDEState *s, int64_t sector_num)
539 if (s->select & 0x40) {
541 s->select = (s->select & 0xf0) | (sector_num >> 24);
542 s->hcyl = (sector_num >> 16);
543 s->lcyl = (sector_num >> 8);
544 s->sector = (sector_num);
546 s->sector = sector_num;
547 s->lcyl = sector_num >> 8;
548 s->hcyl = sector_num >> 16;
549 s->hob_sector = sector_num >> 24;
550 s->hob_lcyl = sector_num >> 32;
551 s->hob_hcyl = sector_num >> 40;
554 cyl = sector_num / (s->heads * s->sectors);
555 r = sector_num % (s->heads * s->sectors);
558 s->select = (s->select & 0xf0) | ((r / s->sectors) & 0x0f);
559 s->sector = (r % s->sectors) + 1;
563 static void ide_rw_error(IDEState *s) {
564 ide_abort_command(s);
568 static bool ide_sect_range_ok(IDEState *s,
569 uint64_t sector, uint64_t nb_sectors)
571 uint64_t total_sectors;
573 blk_get_geometry(s->blk, &total_sectors);
574 if (sector > total_sectors || nb_sectors > total_sectors - sector) {
580 static void ide_buffered_readv_cb(void *opaque, int ret)
582 IDEBufferedRequest *req = opaque;
583 if (!req->orphaned) {
585 qemu_iovec_from_buf(req->original_qiov, 0, req->iov.iov_base,
586 req->original_qiov->size);
588 req->original_cb(req->original_opaque, ret);
590 QLIST_REMOVE(req, list);
591 qemu_vfree(req->iov.iov_base);
595 #define MAX_BUFFERED_REQS 16
597 BlockAIOCB *ide_buffered_readv(IDEState *s, int64_t sector_num,
598 QEMUIOVector *iov, int nb_sectors,
599 BlockCompletionFunc *cb, void *opaque)
602 IDEBufferedRequest *req;
605 QLIST_FOREACH(req, &s->buffered_requests, list) {
608 if (c > MAX_BUFFERED_REQS) {
609 return blk_abort_aio_request(s->blk, cb, opaque, -EIO);
612 req = g_new0(IDEBufferedRequest, 1);
613 req->original_qiov = iov;
614 req->original_cb = cb;
615 req->original_opaque = opaque;
616 req->iov.iov_base = qemu_blockalign(blk_bs(s->blk), iov->size);
617 req->iov.iov_len = iov->size;
618 qemu_iovec_init_external(&req->qiov, &req->iov, 1);
620 aioreq = blk_aio_readv(s->blk, sector_num, &req->qiov, nb_sectors,
621 ide_buffered_readv_cb, req);
623 QLIST_INSERT_HEAD(&s->buffered_requests, req, list);
628 * Cancel all pending DMA requests.
629 * Any buffered DMA requests are instantly canceled,
630 * but any pending unbuffered DMA requests must be waited on.
632 void ide_cancel_dma_sync(IDEState *s)
634 IDEBufferedRequest *req;
636 /* First invoke the callbacks of all buffered requests
637 * and flag those requests as orphaned. Ideally there
638 * are no unbuffered (Scatter Gather DMA Requests or
639 * write requests) pending and we can avoid to drain. */
640 QLIST_FOREACH(req, &s->buffered_requests, list) {
641 if (!req->orphaned) {
643 printf("%s: invoking cb %p of buffered request %p with"
644 " -ECANCELED\n", __func__, req->original_cb, req);
646 req->original_cb(req->original_opaque, -ECANCELED);
648 req->orphaned = true;
652 * We can't cancel Scatter Gather DMA in the middle of the
653 * operation or a partial (not full) DMA transfer would reach
654 * the storage so we wait for completion instead (we beahve
655 * like if the DMA was completed by the time the guest trying
656 * to cancel dma with bmdma_cmd_writeb with BM_CMD_START not
659 * In the future we'll be able to safely cancel the I/O if the
660 * whole DMA operation will be submitted to disk with a single
661 * aio operation with preadv/pwritev.
663 if (s->bus->dma->aiocb) {
665 printf("%s: draining all remaining requests", __func__);
668 assert(s->bus->dma->aiocb == NULL);
672 static void ide_sector_read(IDEState *s);
674 static void ide_sector_read_cb(void *opaque, int ret)
676 IDEState *s = opaque;
680 s->status &= ~BUSY_STAT;
682 if (ret == -ECANCELED) {
686 if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO |
692 block_acct_done(blk_get_stats(s->blk), &s->acct);
695 if (n > s->req_nb_sectors) {
696 n = s->req_nb_sectors;
699 ide_set_sector(s, ide_get_sector(s) + n);
701 /* Allow the guest to read the io_buffer */
702 ide_transfer_start(s, s->io_buffer, n * BDRV_SECTOR_SIZE, ide_sector_read);
706 static void ide_sector_read(IDEState *s)
711 s->status = READY_STAT | SEEK_STAT;
712 s->error = 0; /* not needed by IDE spec, but needed by Windows */
713 sector_num = ide_get_sector(s);
717 ide_transfer_stop(s);
721 s->status |= BUSY_STAT;
723 if (n > s->req_nb_sectors) {
724 n = s->req_nb_sectors;
727 #if defined(DEBUG_IDE)
728 printf("sector=%" PRId64 "\n", sector_num);
731 if (!ide_sect_range_ok(s, sector_num, n)) {
733 block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_READ);
737 s->iov.iov_base = s->io_buffer;
738 s->iov.iov_len = n * BDRV_SECTOR_SIZE;
739 qemu_iovec_init_external(&s->qiov, &s->iov, 1);
741 block_acct_start(blk_get_stats(s->blk), &s->acct,
742 n * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
743 s->pio_aiocb = ide_buffered_readv(s, sector_num, &s->qiov, n,
744 ide_sector_read_cb, s);
747 void dma_buf_commit(IDEState *s, uint32_t tx_bytes)
749 if (s->bus->dma->ops->commit_buf) {
750 s->bus->dma->ops->commit_buf(s->bus->dma, tx_bytes);
752 s->io_buffer_offset += tx_bytes;
753 qemu_sglist_destroy(&s->sg);
756 void ide_set_inactive(IDEState *s, bool more)
758 s->bus->dma->aiocb = NULL;
759 s->bus->retry_unit = -1;
760 s->bus->retry_sector_num = 0;
761 s->bus->retry_nsector = 0;
762 if (s->bus->dma->ops->set_inactive) {
763 s->bus->dma->ops->set_inactive(s->bus->dma, more);
768 void ide_dma_error(IDEState *s)
770 dma_buf_commit(s, 0);
771 ide_abort_command(s);
772 ide_set_inactive(s, false);
776 static int ide_handle_rw_error(IDEState *s, int error, int op)
778 bool is_read = (op & IDE_RETRY_READ) != 0;
779 BlockErrorAction action = blk_get_error_action(s->blk, is_read, error);
781 if (action == BLOCK_ERROR_ACTION_STOP) {
782 assert(s->bus->retry_unit == s->unit);
783 s->bus->error_status = op;
784 } else if (action == BLOCK_ERROR_ACTION_REPORT) {
785 block_acct_failed(blk_get_stats(s->blk), &s->acct);
786 if (op & IDE_RETRY_DMA) {
792 blk_error_action(s->blk, action, is_read, error);
793 return action != BLOCK_ERROR_ACTION_IGNORE;
796 static void ide_dma_cb(void *opaque, int ret)
798 IDEState *s = opaque;
801 bool stay_active = false;
803 if (ret == -ECANCELED) {
807 int op = IDE_RETRY_DMA;
809 if (s->dma_cmd == IDE_DMA_READ)
810 op |= IDE_RETRY_READ;
811 else if (s->dma_cmd == IDE_DMA_TRIM)
812 op |= IDE_RETRY_TRIM;
814 if (ide_handle_rw_error(s, -ret, op)) {
819 n = s->io_buffer_size >> 9;
820 if (n > s->nsector) {
821 /* The PRDs were longer than needed for this request. Shorten them so
822 * we don't get a negative remainder. The Active bit must remain set
823 * after the request completes. */
828 sector_num = ide_get_sector(s);
830 assert(n * 512 == s->sg.size);
831 dma_buf_commit(s, s->sg.size);
833 ide_set_sector(s, sector_num);
837 /* end of transfer ? */
838 if (s->nsector == 0) {
839 s->status = READY_STAT | SEEK_STAT;
844 /* launch next transfer */
846 s->io_buffer_index = 0;
847 s->io_buffer_size = n * 512;
848 if (s->bus->dma->ops->prepare_buf(s->bus->dma, s->io_buffer_size) < 512) {
849 /* The PRDs were too short. Reset the Active bit, but don't raise an
851 s->status = READY_STAT | SEEK_STAT;
852 dma_buf_commit(s, 0);
857 printf("ide_dma_cb: sector_num=%" PRId64 " n=%d, cmd_cmd=%d\n",
858 sector_num, n, s->dma_cmd);
861 if ((s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) &&
862 !ide_sect_range_ok(s, sector_num, n)) {
864 block_acct_invalid(blk_get_stats(s->blk), s->acct.type);
868 switch (s->dma_cmd) {
870 s->bus->dma->aiocb = dma_blk_read(s->blk, &s->sg, sector_num,
874 s->bus->dma->aiocb = dma_blk_write(s->blk, &s->sg, sector_num,
878 s->bus->dma->aiocb = dma_blk_io(s->blk, &s->sg, sector_num,
879 ide_issue_trim, ide_dma_cb, s,
880 DMA_DIRECTION_TO_DEVICE);
886 if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) {
887 block_acct_done(blk_get_stats(s->blk), &s->acct);
889 ide_set_inactive(s, stay_active);
892 static void ide_sector_start_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
894 s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT;
895 s->io_buffer_size = 0;
896 s->dma_cmd = dma_cmd;
900 block_acct_start(blk_get_stats(s->blk), &s->acct,
901 s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
904 block_acct_start(blk_get_stats(s->blk), &s->acct,
905 s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
911 ide_start_dma(s, ide_dma_cb);
914 void ide_start_dma(IDEState *s, BlockCompletionFunc *cb)
916 s->io_buffer_index = 0;
917 s->bus->retry_unit = s->unit;
918 s->bus->retry_sector_num = ide_get_sector(s);
919 s->bus->retry_nsector = s->nsector;
920 if (s->bus->dma->ops->start_dma) {
921 s->bus->dma->ops->start_dma(s->bus->dma, s, cb);
925 static void ide_sector_write(IDEState *s);
927 static void ide_sector_write_timer_cb(void *opaque)
929 IDEState *s = opaque;
933 static void ide_sector_write_cb(void *opaque, int ret)
935 IDEState *s = opaque;
938 if (ret == -ECANCELED) {
943 s->status &= ~BUSY_STAT;
946 if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO)) {
951 block_acct_done(blk_get_stats(s->blk), &s->acct);
954 if (n > s->req_nb_sectors) {
955 n = s->req_nb_sectors;
959 ide_set_sector(s, ide_get_sector(s) + n);
960 if (s->nsector == 0) {
961 /* no more sectors to write */
962 ide_transfer_stop(s);
965 if (n1 > s->req_nb_sectors) {
966 n1 = s->req_nb_sectors;
968 ide_transfer_start(s, s->io_buffer, n1 * BDRV_SECTOR_SIZE,
972 if (win2k_install_hack && ((++s->irq_count % 16) == 0)) {
973 /* It seems there is a bug in the Windows 2000 installer HDD
974 IDE driver which fills the disk with empty logs when the
975 IDE write IRQ comes too early. This hack tries to correct
976 that at the expense of slower write performances. Use this
977 option _only_ to install Windows 2000. You must disable it
979 timer_mod(s->sector_write_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
980 (NANOSECONDS_PER_SECOND / 1000));
986 static void ide_sector_write(IDEState *s)
991 s->status = READY_STAT | SEEK_STAT | BUSY_STAT;
992 sector_num = ide_get_sector(s);
993 #if defined(DEBUG_IDE)
994 printf("sector=%" PRId64 "\n", sector_num);
997 if (n > s->req_nb_sectors) {
998 n = s->req_nb_sectors;
1001 if (!ide_sect_range_ok(s, sector_num, n)) {
1003 block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_WRITE);
1007 s->iov.iov_base = s->io_buffer;
1008 s->iov.iov_len = n * BDRV_SECTOR_SIZE;
1009 qemu_iovec_init_external(&s->qiov, &s->iov, 1);
1011 block_acct_start(blk_get_stats(s->blk), &s->acct,
1012 n * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
1013 s->pio_aiocb = blk_aio_writev(s->blk, sector_num, &s->qiov, n,
1014 ide_sector_write_cb, s);
1017 static void ide_flush_cb(void *opaque, int ret)
1019 IDEState *s = opaque;
1021 s->pio_aiocb = NULL;
1023 if (ret == -ECANCELED) {
1027 /* XXX: What sector number to set here? */
1028 if (ide_handle_rw_error(s, -ret, IDE_RETRY_FLUSH)) {
1034 block_acct_done(blk_get_stats(s->blk), &s->acct);
1036 s->status = READY_STAT | SEEK_STAT;
1038 ide_set_irq(s->bus);
1041 static void ide_flush_cache(IDEState *s)
1043 if (s->blk == NULL) {
1048 s->status |= BUSY_STAT;
1049 block_acct_start(blk_get_stats(s->blk), &s->acct, 0, BLOCK_ACCT_FLUSH);
1050 s->pio_aiocb = blk_aio_flush(s->blk, ide_flush_cb, s);
1053 static void ide_cfata_metadata_inquiry(IDEState *s)
1058 p = (uint16_t *) s->io_buffer;
1059 memset(p, 0, 0x200);
1060 spd = ((s->mdata_size - 1) >> 9) + 1;
1062 put_le16(p + 0, 0x0001); /* Data format revision */
1063 put_le16(p + 1, 0x0000); /* Media property: silicon */
1064 put_le16(p + 2, s->media_changed); /* Media status */
1065 put_le16(p + 3, s->mdata_size & 0xffff); /* Capacity in bytes (low) */
1066 put_le16(p + 4, s->mdata_size >> 16); /* Capacity in bytes (high) */
1067 put_le16(p + 5, spd & 0xffff); /* Sectors per device (low) */
1068 put_le16(p + 6, spd >> 16); /* Sectors per device (high) */
1071 static void ide_cfata_metadata_read(IDEState *s)
1075 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
1076 s->status = ERR_STAT;
1077 s->error = ABRT_ERR;
1081 p = (uint16_t *) s->io_buffer;
1082 memset(p, 0, 0x200);
1084 put_le16(p + 0, s->media_changed); /* Media status */
1085 memcpy(p + 1, s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
1086 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
1087 s->nsector << 9), 0x200 - 2));
1090 static void ide_cfata_metadata_write(IDEState *s)
1092 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
1093 s->status = ERR_STAT;
1094 s->error = ABRT_ERR;
1098 s->media_changed = 0;
1100 memcpy(s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
1102 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
1103 s->nsector << 9), 0x200 - 2));
1106 /* called when the inserted state of the media has changed */
1107 static void ide_cd_change_cb(void *opaque, bool load)
1109 IDEState *s = opaque;
1110 uint64_t nb_sectors;
1112 s->tray_open = !load;
1113 blk_get_geometry(s->blk, &nb_sectors);
1114 s->nb_sectors = nb_sectors;
1117 * First indicate to the guest that a CD has been removed. That's
1118 * done on the next command the guest sends us.
1120 * Then we set UNIT_ATTENTION, by which the guest will
1121 * detect a new CD in the drive. See ide_atapi_cmd() for details.
1123 s->cdrom_changed = 1;
1124 s->events.new_media = true;
1125 s->events.eject_request = false;
1126 ide_set_irq(s->bus);
1129 static void ide_cd_eject_request_cb(void *opaque, bool force)
1131 IDEState *s = opaque;
1133 s->events.eject_request = true;
1135 s->tray_locked = false;
1137 ide_set_irq(s->bus);
1140 static void ide_cmd_lba48_transform(IDEState *s, int lba48)
1144 /* handle the 'magic' 0 nsector count conversion here. to avoid
1145 * fiddling with the rest of the read logic, we just store the
1146 * full sector count in ->nsector and ignore ->hob_nsector from now
1152 if (!s->nsector && !s->hob_nsector)
1155 int lo = s->nsector;
1156 int hi = s->hob_nsector;
1158 s->nsector = (hi << 8) | lo;
1163 static void ide_clear_hob(IDEBus *bus)
1165 /* any write clears HOB high bit of device control register */
1166 bus->ifs[0].select &= ~(1 << 7);
1167 bus->ifs[1].select &= ~(1 << 7);
1170 void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
1172 IDEBus *bus = opaque;
1175 printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
1180 /* ignore writes to command block while busy with previous command */
1181 if (addr != 7 && (idebus_active_if(bus)->status & (BUSY_STAT|DRQ_STAT)))
1189 /* NOTE: data is written to the two drives */
1190 bus->ifs[0].hob_feature = bus->ifs[0].feature;
1191 bus->ifs[1].hob_feature = bus->ifs[1].feature;
1192 bus->ifs[0].feature = val;
1193 bus->ifs[1].feature = val;
1197 bus->ifs[0].hob_nsector = bus->ifs[0].nsector;
1198 bus->ifs[1].hob_nsector = bus->ifs[1].nsector;
1199 bus->ifs[0].nsector = val;
1200 bus->ifs[1].nsector = val;
1204 bus->ifs[0].hob_sector = bus->ifs[0].sector;
1205 bus->ifs[1].hob_sector = bus->ifs[1].sector;
1206 bus->ifs[0].sector = val;
1207 bus->ifs[1].sector = val;
1211 bus->ifs[0].hob_lcyl = bus->ifs[0].lcyl;
1212 bus->ifs[1].hob_lcyl = bus->ifs[1].lcyl;
1213 bus->ifs[0].lcyl = val;
1214 bus->ifs[1].lcyl = val;
1218 bus->ifs[0].hob_hcyl = bus->ifs[0].hcyl;
1219 bus->ifs[1].hob_hcyl = bus->ifs[1].hcyl;
1220 bus->ifs[0].hcyl = val;
1221 bus->ifs[1].hcyl = val;
1224 /* FIXME: HOB readback uses bit 7 */
1225 bus->ifs[0].select = (val & ~0x10) | 0xa0;
1226 bus->ifs[1].select = (val | 0x10) | 0xa0;
1228 bus->unit = (val >> 4) & 1;
1233 ide_exec_cmd(bus, val);
1238 static void ide_reset(IDEState *s)
1241 printf("ide: reset\n");
1245 blk_aio_cancel(s->pio_aiocb);
1246 s->pio_aiocb = NULL;
1249 if (s->drive_kind == IDE_CFATA)
1250 s->mult_sectors = 0;
1252 s->mult_sectors = MAX_MULT_SECTORS;
1269 s->status = READY_STAT | SEEK_STAT;
1273 /* ATAPI specific */
1276 s->cdrom_changed = 0;
1277 s->packet_transfer_size = 0;
1278 s->elementary_transfer_size = 0;
1279 s->io_buffer_index = 0;
1280 s->cd_sector_size = 0;
1285 s->io_buffer_size = 0;
1286 s->req_nb_sectors = 0;
1288 ide_set_signature(s);
1289 /* init the transfer handler so that 0xffff is returned on data
1291 s->end_transfer_func = ide_dummy_transfer_stop;
1292 ide_dummy_transfer_stop(s);
1293 s->media_changed = 0;
1296 static bool cmd_nop(IDEState *s, uint8_t cmd)
1301 static bool cmd_device_reset(IDEState *s, uint8_t cmd)
1303 /* Halt PIO (in the DRQ phase), then DMA */
1304 ide_transfer_cancel(s);
1305 ide_cancel_dma_sync(s);
1307 /* Reset any PIO commands, reset signature, etc */
1310 /* RESET: ATA8-ACS3 7.10.4 "Normal Outputs";
1311 * ATA8-ACS3 Table 184 "Device Signatures for Normal Output" */
1314 /* Do not overwrite status register */
1318 static bool cmd_data_set_management(IDEState *s, uint8_t cmd)
1320 switch (s->feature) {
1323 ide_sector_start_dma(s, IDE_DMA_TRIM);
1329 ide_abort_command(s);
1333 static bool cmd_identify(IDEState *s, uint8_t cmd)
1335 if (s->blk && s->drive_kind != IDE_CD) {
1336 if (s->drive_kind != IDE_CFATA) {
1339 ide_cfata_identify(s);
1341 s->status = READY_STAT | SEEK_STAT;
1342 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1343 ide_set_irq(s->bus);
1346 if (s->drive_kind == IDE_CD) {
1347 ide_set_signature(s);
1349 ide_abort_command(s);
1355 static bool cmd_verify(IDEState *s, uint8_t cmd)
1357 bool lba48 = (cmd == WIN_VERIFY_EXT);
1359 /* do sector number check ? */
1360 ide_cmd_lba48_transform(s, lba48);
1365 static bool cmd_set_multiple_mode(IDEState *s, uint8_t cmd)
1367 if (s->drive_kind == IDE_CFATA && s->nsector == 0) {
1368 /* Disable Read and Write Multiple */
1369 s->mult_sectors = 0;
1370 } else if ((s->nsector & 0xff) != 0 &&
1371 ((s->nsector & 0xff) > MAX_MULT_SECTORS ||
1372 (s->nsector & (s->nsector - 1)) != 0)) {
1373 ide_abort_command(s);
1375 s->mult_sectors = s->nsector & 0xff;
1381 static bool cmd_read_multiple(IDEState *s, uint8_t cmd)
1383 bool lba48 = (cmd == WIN_MULTREAD_EXT);
1385 if (!s->blk || !s->mult_sectors) {
1386 ide_abort_command(s);
1390 ide_cmd_lba48_transform(s, lba48);
1391 s->req_nb_sectors = s->mult_sectors;
1396 static bool cmd_write_multiple(IDEState *s, uint8_t cmd)
1398 bool lba48 = (cmd == WIN_MULTWRITE_EXT);
1401 if (!s->blk || !s->mult_sectors) {
1402 ide_abort_command(s);
1406 ide_cmd_lba48_transform(s, lba48);
1408 s->req_nb_sectors = s->mult_sectors;
1409 n = MIN(s->nsector, s->req_nb_sectors);
1411 s->status = SEEK_STAT | READY_STAT;
1412 ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
1414 s->media_changed = 1;
1419 static bool cmd_read_pio(IDEState *s, uint8_t cmd)
1421 bool lba48 = (cmd == WIN_READ_EXT);
1423 if (s->drive_kind == IDE_CD) {
1424 ide_set_signature(s); /* odd, but ATA4 8.27.5.2 requires it */
1425 ide_abort_command(s);
1430 ide_abort_command(s);
1434 ide_cmd_lba48_transform(s, lba48);
1435 s->req_nb_sectors = 1;
1441 static bool cmd_write_pio(IDEState *s, uint8_t cmd)
1443 bool lba48 = (cmd == WIN_WRITE_EXT);
1446 ide_abort_command(s);
1450 ide_cmd_lba48_transform(s, lba48);
1452 s->req_nb_sectors = 1;
1453 s->status = SEEK_STAT | READY_STAT;
1454 ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
1456 s->media_changed = 1;
1461 static bool cmd_read_dma(IDEState *s, uint8_t cmd)
1463 bool lba48 = (cmd == WIN_READDMA_EXT);
1466 ide_abort_command(s);
1470 ide_cmd_lba48_transform(s, lba48);
1471 ide_sector_start_dma(s, IDE_DMA_READ);
1476 static bool cmd_write_dma(IDEState *s, uint8_t cmd)
1478 bool lba48 = (cmd == WIN_WRITEDMA_EXT);
1481 ide_abort_command(s);
1485 ide_cmd_lba48_transform(s, lba48);
1486 ide_sector_start_dma(s, IDE_DMA_WRITE);
1488 s->media_changed = 1;
1493 static bool cmd_flush_cache(IDEState *s, uint8_t cmd)
1499 static bool cmd_seek(IDEState *s, uint8_t cmd)
1501 /* XXX: Check that seek is within bounds */
1505 static bool cmd_read_native_max(IDEState *s, uint8_t cmd)
1507 bool lba48 = (cmd == WIN_READ_NATIVE_MAX_EXT);
1509 /* Refuse if no sectors are addressable (e.g. medium not inserted) */
1510 if (s->nb_sectors == 0) {
1511 ide_abort_command(s);
1515 ide_cmd_lba48_transform(s, lba48);
1516 ide_set_sector(s, s->nb_sectors - 1);
1521 static bool cmd_check_power_mode(IDEState *s, uint8_t cmd)
1523 s->nsector = 0xff; /* device active or idle */
1527 static bool cmd_set_features(IDEState *s, uint8_t cmd)
1529 uint16_t *identify_data;
1532 ide_abort_command(s);
1536 /* XXX: valid for CDROM ? */
1537 switch (s->feature) {
1538 case 0x02: /* write cache enable */
1539 blk_set_enable_write_cache(s->blk, true);
1540 identify_data = (uint16_t *)s->identify_data;
1541 put_le16(identify_data + 85, (1 << 14) | (1 << 5) | 1);
1543 case 0x82: /* write cache disable */
1544 blk_set_enable_write_cache(s->blk, false);
1545 identify_data = (uint16_t *)s->identify_data;
1546 put_le16(identify_data + 85, (1 << 14) | 1);
1549 case 0xcc: /* reverting to power-on defaults enable */
1550 case 0x66: /* reverting to power-on defaults disable */
1551 case 0xaa: /* read look-ahead enable */
1552 case 0x55: /* read look-ahead disable */
1553 case 0x05: /* set advanced power management mode */
1554 case 0x85: /* disable advanced power management mode */
1555 case 0x69: /* NOP */
1556 case 0x67: /* NOP */
1557 case 0x96: /* NOP */
1558 case 0x9a: /* NOP */
1559 case 0x42: /* enable Automatic Acoustic Mode */
1560 case 0xc2: /* disable Automatic Acoustic Mode */
1562 case 0x03: /* set transfer mode */
1564 uint8_t val = s->nsector & 0x07;
1565 identify_data = (uint16_t *)s->identify_data;
1567 switch (s->nsector >> 3) {
1568 case 0x00: /* pio default */
1569 case 0x01: /* pio mode */
1570 put_le16(identify_data + 62, 0x07);
1571 put_le16(identify_data + 63, 0x07);
1572 put_le16(identify_data + 88, 0x3f);
1574 case 0x02: /* sigle word dma mode*/
1575 put_le16(identify_data + 62, 0x07 | (1 << (val + 8)));
1576 put_le16(identify_data + 63, 0x07);
1577 put_le16(identify_data + 88, 0x3f);
1579 case 0x04: /* mdma mode */
1580 put_le16(identify_data + 62, 0x07);
1581 put_le16(identify_data + 63, 0x07 | (1 << (val + 8)));
1582 put_le16(identify_data + 88, 0x3f);
1584 case 0x08: /* udma mode */
1585 put_le16(identify_data + 62, 0x07);
1586 put_le16(identify_data + 63, 0x07);
1587 put_le16(identify_data + 88, 0x3f | (1 << (val + 8)));
1597 ide_abort_command(s);
1602 /*** ATAPI commands ***/
1604 static bool cmd_identify_packet(IDEState *s, uint8_t cmd)
1606 ide_atapi_identify(s);
1607 s->status = READY_STAT | SEEK_STAT;
1608 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1609 ide_set_irq(s->bus);
1613 static bool cmd_exec_dev_diagnostic(IDEState *s, uint8_t cmd)
1615 ide_set_signature(s);
1617 if (s->drive_kind == IDE_CD) {
1618 s->status = 0; /* ATAPI spec (v6) section 9.10 defines packet
1619 * devices to return a clear status register
1620 * with READY_STAT *not* set. */
1623 s->status = READY_STAT | SEEK_STAT;
1624 /* The bits of the error register are not as usual for this command!
1625 * They are part of the regular output (this is why ERR_STAT isn't set)
1626 * Device 0 passed, Device 1 passed or not present. */
1628 ide_set_irq(s->bus);
1634 static bool cmd_packet(IDEState *s, uint8_t cmd)
1636 /* overlapping commands not supported */
1637 if (s->feature & 0x02) {
1638 ide_abort_command(s);
1642 s->status = READY_STAT | SEEK_STAT;
1643 s->atapi_dma = s->feature & 1;
1645 ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
1651 /*** CF-ATA commands ***/
1653 static bool cmd_cfa_req_ext_error_code(IDEState *s, uint8_t cmd)
1655 s->error = 0x09; /* miscellaneous error */
1656 s->status = READY_STAT | SEEK_STAT;
1657 ide_set_irq(s->bus);
1662 static bool cmd_cfa_erase_sectors(IDEState *s, uint8_t cmd)
1664 /* WIN_SECURITY_FREEZE_LOCK has the same ID as CFA_WEAR_LEVEL and is
1665 * required for Windows 8 to work with AHCI */
1667 if (cmd == CFA_WEAR_LEVEL) {
1671 if (cmd == CFA_ERASE_SECTORS) {
1672 s->media_changed = 1;
1678 static bool cmd_cfa_translate_sector(IDEState *s, uint8_t cmd)
1680 s->status = READY_STAT | SEEK_STAT;
1682 memset(s->io_buffer, 0, 0x200);
1683 s->io_buffer[0x00] = s->hcyl; /* Cyl MSB */
1684 s->io_buffer[0x01] = s->lcyl; /* Cyl LSB */
1685 s->io_buffer[0x02] = s->select; /* Head */
1686 s->io_buffer[0x03] = s->sector; /* Sector */
1687 s->io_buffer[0x04] = ide_get_sector(s) >> 16; /* LBA MSB */
1688 s->io_buffer[0x05] = ide_get_sector(s) >> 8; /* LBA */
1689 s->io_buffer[0x06] = ide_get_sector(s) >> 0; /* LBA LSB */
1690 s->io_buffer[0x13] = 0x00; /* Erase flag */
1691 s->io_buffer[0x18] = 0x00; /* Hot count */
1692 s->io_buffer[0x19] = 0x00; /* Hot count */
1693 s->io_buffer[0x1a] = 0x01; /* Hot count */
1695 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1696 ide_set_irq(s->bus);
1701 static bool cmd_cfa_access_metadata_storage(IDEState *s, uint8_t cmd)
1703 switch (s->feature) {
1704 case 0x02: /* Inquiry Metadata Storage */
1705 ide_cfata_metadata_inquiry(s);
1707 case 0x03: /* Read Metadata Storage */
1708 ide_cfata_metadata_read(s);
1710 case 0x04: /* Write Metadata Storage */
1711 ide_cfata_metadata_write(s);
1714 ide_abort_command(s);
1718 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1719 s->status = 0x00; /* NOTE: READY is _not_ set */
1720 ide_set_irq(s->bus);
1725 static bool cmd_ibm_sense_condition(IDEState *s, uint8_t cmd)
1727 switch (s->feature) {
1728 case 0x01: /* sense temperature in device */
1729 s->nsector = 0x50; /* +20 C */
1732 ide_abort_command(s);
1740 /*** SMART commands ***/
1742 static bool cmd_smart(IDEState *s, uint8_t cmd)
1746 if (s->hcyl != 0xc2 || s->lcyl != 0x4f) {
1750 if (!s->smart_enabled && s->feature != SMART_ENABLE) {
1754 switch (s->feature) {
1756 s->smart_enabled = 0;
1760 s->smart_enabled = 1;
1763 case SMART_ATTR_AUTOSAVE:
1764 switch (s->sector) {
1766 s->smart_autosave = 0;
1769 s->smart_autosave = 1;
1777 if (!s->smart_errors) {
1786 case SMART_READ_THRESH:
1787 memset(s->io_buffer, 0, 0x200);
1788 s->io_buffer[0] = 0x01; /* smart struct version */
1790 for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
1791 s->io_buffer[2 + 0 + (n * 12)] = smart_attributes[n][0];
1792 s->io_buffer[2 + 1 + (n * 12)] = smart_attributes[n][11];
1796 for (n = 0; n < 511; n++) {
1797 s->io_buffer[511] += s->io_buffer[n];
1799 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1801 s->status = READY_STAT | SEEK_STAT;
1802 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1803 ide_set_irq(s->bus);
1806 case SMART_READ_DATA:
1807 memset(s->io_buffer, 0, 0x200);
1808 s->io_buffer[0] = 0x01; /* smart struct version */
1810 for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
1812 for (i = 0; i < 11; i++) {
1813 s->io_buffer[2 + i + (n * 12)] = smart_attributes[n][i];
1817 s->io_buffer[362] = 0x02 | (s->smart_autosave ? 0x80 : 0x00);
1818 if (s->smart_selftest_count == 0) {
1819 s->io_buffer[363] = 0;
1822 s->smart_selftest_data[3 +
1823 (s->smart_selftest_count - 1) *
1826 s->io_buffer[364] = 0x20;
1827 s->io_buffer[365] = 0x01;
1828 /* offline data collection capacity: execute + self-test*/
1829 s->io_buffer[367] = (1 << 4 | 1 << 3 | 1);
1830 s->io_buffer[368] = 0x03; /* smart capability (1) */
1831 s->io_buffer[369] = 0x00; /* smart capability (2) */
1832 s->io_buffer[370] = 0x01; /* error logging supported */
1833 s->io_buffer[372] = 0x02; /* minutes for poll short test */
1834 s->io_buffer[373] = 0x36; /* minutes for poll ext test */
1835 s->io_buffer[374] = 0x01; /* minutes for poll conveyance */
1837 for (n = 0; n < 511; n++) {
1838 s->io_buffer[511] += s->io_buffer[n];
1840 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1842 s->status = READY_STAT | SEEK_STAT;
1843 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1844 ide_set_irq(s->bus);
1847 case SMART_READ_LOG:
1848 switch (s->sector) {
1849 case 0x01: /* summary smart error log */
1850 memset(s->io_buffer, 0, 0x200);
1851 s->io_buffer[0] = 0x01;
1852 s->io_buffer[1] = 0x00; /* no error entries */
1853 s->io_buffer[452] = s->smart_errors & 0xff;
1854 s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8;
1856 for (n = 0; n < 511; n++) {
1857 s->io_buffer[511] += s->io_buffer[n];
1859 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1861 case 0x06: /* smart self test log */
1862 memset(s->io_buffer, 0, 0x200);
1863 s->io_buffer[0] = 0x01;
1864 if (s->smart_selftest_count == 0) {
1865 s->io_buffer[508] = 0;
1867 s->io_buffer[508] = s->smart_selftest_count;
1868 for (n = 2; n < 506; n++) {
1869 s->io_buffer[n] = s->smart_selftest_data[n];
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];
1881 s->status = READY_STAT | SEEK_STAT;
1882 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1883 ide_set_irq(s->bus);
1886 case SMART_EXECUTE_OFFLINE:
1887 switch (s->sector) {
1888 case 0: /* off-line routine */
1889 case 1: /* short self test */
1890 case 2: /* extended self test */
1891 s->smart_selftest_count++;
1892 if (s->smart_selftest_count > 21) {
1893 s->smart_selftest_count = 1;
1895 n = 2 + (s->smart_selftest_count - 1) * 24;
1896 s->smart_selftest_data[n] = s->sector;
1897 s->smart_selftest_data[n + 1] = 0x00; /* OK and finished */
1898 s->smart_selftest_data[n + 2] = 0x34; /* hour count lsb */
1899 s->smart_selftest_data[n + 3] = 0x12; /* hour count msb */
1908 ide_abort_command(s);
1912 #define HD_OK (1u << IDE_HD)
1913 #define CD_OK (1u << IDE_CD)
1914 #define CFA_OK (1u << IDE_CFATA)
1915 #define HD_CFA_OK (HD_OK | CFA_OK)
1916 #define ALL_OK (HD_OK | CD_OK | CFA_OK)
1918 /* Set the Disk Seek Completed status bit during completion */
1919 #define SET_DSC (1u << 8)
1921 /* See ACS-2 T13/2015-D Table B.2 Command codes */
1922 static const struct {
1923 /* Returns true if the completion code should be run */
1924 bool (*handler)(IDEState *s, uint8_t cmd);
1926 } ide_cmd_table[0x100] = {
1927 /* NOP not implemented, mandatory for CD */
1928 [CFA_REQ_EXT_ERROR_CODE] = { cmd_cfa_req_ext_error_code, CFA_OK },
1929 [WIN_DSM] = { cmd_data_set_management, HD_CFA_OK },
1930 [WIN_DEVICE_RESET] = { cmd_device_reset, CD_OK },
1931 [WIN_RECAL] = { cmd_nop, HD_CFA_OK | SET_DSC},
1932 [WIN_READ] = { cmd_read_pio, ALL_OK },
1933 [WIN_READ_ONCE] = { cmd_read_pio, HD_CFA_OK },
1934 [WIN_READ_EXT] = { cmd_read_pio, HD_CFA_OK },
1935 [WIN_READDMA_EXT] = { cmd_read_dma, HD_CFA_OK },
1936 [WIN_READ_NATIVE_MAX_EXT] = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
1937 [WIN_MULTREAD_EXT] = { cmd_read_multiple, HD_CFA_OK },
1938 [WIN_WRITE] = { cmd_write_pio, HD_CFA_OK },
1939 [WIN_WRITE_ONCE] = { cmd_write_pio, HD_CFA_OK },
1940 [WIN_WRITE_EXT] = { cmd_write_pio, HD_CFA_OK },
1941 [WIN_WRITEDMA_EXT] = { cmd_write_dma, HD_CFA_OK },
1942 [CFA_WRITE_SECT_WO_ERASE] = { cmd_write_pio, CFA_OK },
1943 [WIN_MULTWRITE_EXT] = { cmd_write_multiple, HD_CFA_OK },
1944 [WIN_WRITE_VERIFY] = { cmd_write_pio, HD_CFA_OK },
1945 [WIN_VERIFY] = { cmd_verify, HD_CFA_OK | SET_DSC },
1946 [WIN_VERIFY_ONCE] = { cmd_verify, HD_CFA_OK | SET_DSC },
1947 [WIN_VERIFY_EXT] = { cmd_verify, HD_CFA_OK | SET_DSC },
1948 [WIN_SEEK] = { cmd_seek, HD_CFA_OK | SET_DSC },
1949 [CFA_TRANSLATE_SECTOR] = { cmd_cfa_translate_sector, CFA_OK },
1950 [WIN_DIAGNOSE] = { cmd_exec_dev_diagnostic, ALL_OK },
1951 [WIN_SPECIFY] = { cmd_nop, HD_CFA_OK | SET_DSC },
1952 [WIN_STANDBYNOW2] = { cmd_nop, HD_CFA_OK },
1953 [WIN_IDLEIMMEDIATE2] = { cmd_nop, HD_CFA_OK },
1954 [WIN_STANDBY2] = { cmd_nop, HD_CFA_OK },
1955 [WIN_SETIDLE2] = { cmd_nop, HD_CFA_OK },
1956 [WIN_CHECKPOWERMODE2] = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
1957 [WIN_SLEEPNOW2] = { cmd_nop, HD_CFA_OK },
1958 [WIN_PACKETCMD] = { cmd_packet, CD_OK },
1959 [WIN_PIDENTIFY] = { cmd_identify_packet, CD_OK },
1960 [WIN_SMART] = { cmd_smart, HD_CFA_OK | SET_DSC },
1961 [CFA_ACCESS_METADATA_STORAGE] = { cmd_cfa_access_metadata_storage, CFA_OK },
1962 [CFA_ERASE_SECTORS] = { cmd_cfa_erase_sectors, CFA_OK | SET_DSC },
1963 [WIN_MULTREAD] = { cmd_read_multiple, HD_CFA_OK },
1964 [WIN_MULTWRITE] = { cmd_write_multiple, HD_CFA_OK },
1965 [WIN_SETMULT] = { cmd_set_multiple_mode, HD_CFA_OK | SET_DSC },
1966 [WIN_READDMA] = { cmd_read_dma, HD_CFA_OK },
1967 [WIN_READDMA_ONCE] = { cmd_read_dma, HD_CFA_OK },
1968 [WIN_WRITEDMA] = { cmd_write_dma, HD_CFA_OK },
1969 [WIN_WRITEDMA_ONCE] = { cmd_write_dma, HD_CFA_OK },
1970 [CFA_WRITE_MULTI_WO_ERASE] = { cmd_write_multiple, CFA_OK },
1971 [WIN_STANDBYNOW1] = { cmd_nop, HD_CFA_OK },
1972 [WIN_IDLEIMMEDIATE] = { cmd_nop, HD_CFA_OK },
1973 [WIN_STANDBY] = { cmd_nop, HD_CFA_OK },
1974 [WIN_SETIDLE1] = { cmd_nop, HD_CFA_OK },
1975 [WIN_CHECKPOWERMODE1] = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
1976 [WIN_SLEEPNOW1] = { cmd_nop, HD_CFA_OK },
1977 [WIN_FLUSH_CACHE] = { cmd_flush_cache, ALL_OK },
1978 [WIN_FLUSH_CACHE_EXT] = { cmd_flush_cache, HD_CFA_OK },
1979 [WIN_IDENTIFY] = { cmd_identify, ALL_OK },
1980 [WIN_SETFEATURES] = { cmd_set_features, ALL_OK | SET_DSC },
1981 [IBM_SENSE_CONDITION] = { cmd_ibm_sense_condition, CFA_OK | SET_DSC },
1982 [CFA_WEAR_LEVEL] = { cmd_cfa_erase_sectors, HD_CFA_OK | SET_DSC },
1983 [WIN_READ_NATIVE_MAX] = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
1986 static bool ide_cmd_permitted(IDEState *s, uint32_t cmd)
1988 return cmd < ARRAY_SIZE(ide_cmd_table)
1989 && (ide_cmd_table[cmd].flags & (1u << s->drive_kind));
1992 void ide_exec_cmd(IDEBus *bus, uint32_t val)
1997 #if defined(DEBUG_IDE)
1998 printf("ide: CMD=%02x\n", val);
2000 s = idebus_active_if(bus);
2001 /* ignore commands to non existent slave */
2002 if (s != bus->ifs && !s->blk) {
2006 /* Only RESET is allowed while BSY and/or DRQ are set,
2007 * and only to ATAPI devices. */
2008 if (s->status & (BUSY_STAT|DRQ_STAT)) {
2009 if (val != WIN_DEVICE_RESET || s->drive_kind != IDE_CD) {
2014 if (!ide_cmd_permitted(s, val)) {
2015 ide_abort_command(s);
2016 ide_set_irq(s->bus);
2020 s->status = READY_STAT | BUSY_STAT;
2022 s->io_buffer_offset = 0;
2024 complete = ide_cmd_table[val].handler(s, val);
2026 s->status &= ~BUSY_STAT;
2027 assert(!!s->error == !!(s->status & ERR_STAT));
2029 if ((ide_cmd_table[val].flags & SET_DSC) && !s->error) {
2030 s->status |= SEEK_STAT;
2034 ide_set_irq(s->bus);
2038 uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
2040 IDEBus *bus = opaque;
2041 IDEState *s = idebus_active_if(bus);
2046 /* FIXME: HOB readback uses bit 7, but it's always set right now */
2047 //hob = s->select & (1 << 7);
2054 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
2055 (s != bus->ifs && !s->blk)) {
2060 ret = s->hob_feature;
2064 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2067 ret = s->nsector & 0xff;
2069 ret = s->hob_nsector;
2073 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2078 ret = s->hob_sector;
2082 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2091 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2100 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
2108 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
2109 (s != bus->ifs && !s->blk)) {
2114 qemu_irq_lower(bus->irq);
2118 printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
2123 uint32_t ide_status_read(void *opaque, uint32_t addr)
2125 IDEBus *bus = opaque;
2126 IDEState *s = idebus_active_if(bus);
2129 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
2130 (s != bus->ifs && !s->blk)) {
2136 printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
2141 void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val)
2143 IDEBus *bus = opaque;
2148 printf("ide: write control addr=0x%x val=%02x\n", addr, val);
2150 /* common for both drives */
2151 if (!(bus->cmd & IDE_CMD_RESET) &&
2152 (val & IDE_CMD_RESET)) {
2153 /* reset low to high */
2154 for(i = 0;i < 2; i++) {
2156 s->status = BUSY_STAT | SEEK_STAT;
2159 } else if ((bus->cmd & IDE_CMD_RESET) &&
2160 !(val & IDE_CMD_RESET)) {
2162 for(i = 0;i < 2; i++) {
2164 if (s->drive_kind == IDE_CD)
2165 s->status = 0x00; /* NOTE: READY is _not_ set */
2167 s->status = READY_STAT | SEEK_STAT;
2168 ide_set_signature(s);
2176 * Returns true if the running PIO transfer is a PIO out (i.e. data is
2177 * transferred from the device to the guest), false if it's a PIO in
2179 static bool ide_is_pio_out(IDEState *s)
2181 if (s->end_transfer_func == ide_sector_write ||
2182 s->end_transfer_func == ide_atapi_cmd) {
2184 } else if (s->end_transfer_func == ide_sector_read ||
2185 s->end_transfer_func == ide_transfer_stop ||
2186 s->end_transfer_func == ide_atapi_cmd_reply_end ||
2187 s->end_transfer_func == ide_dummy_transfer_stop) {
2194 void ide_data_writew(void *opaque, uint32_t addr, uint32_t val)
2196 IDEBus *bus = opaque;
2197 IDEState *s = idebus_active_if(bus);
2200 /* PIO data access allowed only when DRQ bit is set. The result of a write
2201 * during PIO out is indeterminate, just ignore it. */
2202 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
2207 if (p + 2 > s->data_end) {
2211 *(uint16_t *)p = le16_to_cpu(val);
2214 if (p >= s->data_end) {
2215 s->status &= ~DRQ_STAT;
2216 s->end_transfer_func(s);
2220 uint32_t ide_data_readw(void *opaque, uint32_t addr)
2222 IDEBus *bus = opaque;
2223 IDEState *s = idebus_active_if(bus);
2227 /* PIO data access allowed only when DRQ bit is set. The result of a read
2228 * during PIO in is indeterminate, return 0 and don't move forward. */
2229 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
2234 if (p + 2 > s->data_end) {
2238 ret = cpu_to_le16(*(uint16_t *)p);
2241 if (p >= s->data_end) {
2242 s->status &= ~DRQ_STAT;
2243 s->end_transfer_func(s);
2248 void ide_data_writel(void *opaque, uint32_t addr, uint32_t val)
2250 IDEBus *bus = opaque;
2251 IDEState *s = idebus_active_if(bus);
2254 /* PIO data access allowed only when DRQ bit is set. The result of a write
2255 * during PIO out is indeterminate, just ignore it. */
2256 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
2261 if (p + 4 > s->data_end) {
2265 *(uint32_t *)p = le32_to_cpu(val);
2268 if (p >= s->data_end) {
2269 s->status &= ~DRQ_STAT;
2270 s->end_transfer_func(s);
2274 uint32_t ide_data_readl(void *opaque, uint32_t addr)
2276 IDEBus *bus = opaque;
2277 IDEState *s = idebus_active_if(bus);
2281 /* PIO data access allowed only when DRQ bit is set. The result of a read
2282 * during PIO in is indeterminate, return 0 and don't move forward. */
2283 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
2288 if (p + 4 > s->data_end) {
2292 ret = cpu_to_le32(*(uint32_t *)p);
2295 if (p >= s->data_end) {
2296 s->status &= ~DRQ_STAT;
2297 s->end_transfer_func(s);
2302 static void ide_dummy_transfer_stop(IDEState *s)
2304 s->data_ptr = s->io_buffer;
2305 s->data_end = s->io_buffer;
2306 s->io_buffer[0] = 0xff;
2307 s->io_buffer[1] = 0xff;
2308 s->io_buffer[2] = 0xff;
2309 s->io_buffer[3] = 0xff;
2312 void ide_bus_reset(IDEBus *bus)
2316 ide_reset(&bus->ifs[0]);
2317 ide_reset(&bus->ifs[1]);
2320 /* pending async DMA */
2321 if (bus->dma->aiocb) {
2323 printf("aio_cancel\n");
2325 blk_aio_cancel(bus->dma->aiocb);
2326 bus->dma->aiocb = NULL;
2329 /* reset dma provider too */
2330 if (bus->dma->ops->reset) {
2331 bus->dma->ops->reset(bus->dma);
2335 static bool ide_cd_is_tray_open(void *opaque)
2337 return ((IDEState *)opaque)->tray_open;
2340 static bool ide_cd_is_medium_locked(void *opaque)
2342 return ((IDEState *)opaque)->tray_locked;
2345 static void ide_resize_cb(void *opaque)
2347 IDEState *s = opaque;
2348 uint64_t nb_sectors;
2350 if (!s->identify_set) {
2354 blk_get_geometry(s->blk, &nb_sectors);
2355 s->nb_sectors = nb_sectors;
2357 /* Update the identify data buffer. */
2358 if (s->drive_kind == IDE_CFATA) {
2359 ide_cfata_identify_size(s);
2361 /* IDE_CD uses a different set of callbacks entirely. */
2362 assert(s->drive_kind != IDE_CD);
2363 ide_identify_size(s);
2367 static const BlockDevOps ide_cd_block_ops = {
2368 .change_media_cb = ide_cd_change_cb,
2369 .eject_request_cb = ide_cd_eject_request_cb,
2370 .is_tray_open = ide_cd_is_tray_open,
2371 .is_medium_locked = ide_cd_is_medium_locked,
2374 static const BlockDevOps ide_hd_block_ops = {
2375 .resize_cb = ide_resize_cb,
2378 int ide_init_drive(IDEState *s, BlockBackend *blk, IDEDriveKind kind,
2379 const char *version, const char *serial, const char *model,
2381 uint32_t cylinders, uint32_t heads, uint32_t secs,
2384 uint64_t nb_sectors;
2387 s->drive_kind = kind;
2389 blk_get_geometry(blk, &nb_sectors);
2390 s->cylinders = cylinders;
2393 s->chs_trans = chs_trans;
2394 s->nb_sectors = nb_sectors;
2396 /* The SMART values should be preserved across power cycles
2398 s->smart_enabled = 1;
2399 s->smart_autosave = 1;
2400 s->smart_errors = 0;
2401 s->smart_selftest_count = 0;
2402 if (kind == IDE_CD) {
2403 blk_set_dev_ops(blk, &ide_cd_block_ops, s);
2404 blk_set_guest_block_size(blk, 2048);
2406 if (!blk_is_inserted(s->blk)) {
2407 error_report("Device needs media, but drive is empty");
2410 if (blk_is_read_only(blk)) {
2411 error_report("Can't use a read-only drive");
2414 blk_set_dev_ops(blk, &ide_hd_block_ops, s);
2417 pstrcpy(s->drive_serial_str, sizeof(s->drive_serial_str), serial);
2419 snprintf(s->drive_serial_str, sizeof(s->drive_serial_str),
2420 "QM%05d", s->drive_serial);
2423 pstrcpy(s->drive_model_str, sizeof(s->drive_model_str), model);
2427 strcpy(s->drive_model_str, "QEMU DVD-ROM");
2430 strcpy(s->drive_model_str, "QEMU MICRODRIVE");
2433 strcpy(s->drive_model_str, "QEMU HARDDISK");
2439 pstrcpy(s->version, sizeof(s->version), version);
2441 pstrcpy(s->version, sizeof(s->version), qemu_hw_version());
2445 blk_iostatus_enable(blk);
2449 static void ide_init1(IDEBus *bus, int unit)
2451 static int drive_serial = 1;
2452 IDEState *s = &bus->ifs[unit];
2456 s->drive_serial = drive_serial++;
2457 /* we need at least 2k alignment for accessing CDROMs using O_DIRECT */
2458 s->io_buffer_total_len = IDE_DMA_BUF_SECTORS*512 + 4;
2459 s->io_buffer = qemu_memalign(2048, s->io_buffer_total_len);
2460 memset(s->io_buffer, 0, s->io_buffer_total_len);
2462 s->smart_selftest_data = blk_blockalign(s->blk, 512);
2463 memset(s->smart_selftest_data, 0, 512);
2465 s->sector_write_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
2466 ide_sector_write_timer_cb, s);
2469 static int ide_nop_int(IDEDMA *dma, int x)
2474 static void ide_nop(IDEDMA *dma)
2478 static int32_t ide_nop_int32(IDEDMA *dma, int32_t l)
2483 static const IDEDMAOps ide_dma_nop_ops = {
2484 .prepare_buf = ide_nop_int32,
2485 .restart_dma = ide_nop,
2486 .rw_buf = ide_nop_int,
2489 static void ide_restart_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
2491 s->unit = s->bus->retry_unit;
2492 ide_set_sector(s, s->bus->retry_sector_num);
2493 s->nsector = s->bus->retry_nsector;
2494 s->bus->dma->ops->restart_dma(s->bus->dma);
2495 s->io_buffer_size = 0;
2496 s->dma_cmd = dma_cmd;
2497 ide_start_dma(s, ide_dma_cb);
2500 static void ide_restart_bh(void *opaque)
2502 IDEBus *bus = opaque;
2507 qemu_bh_delete(bus->bh);
2510 error_status = bus->error_status;
2511 if (bus->error_status == 0) {
2515 s = idebus_active_if(bus);
2516 is_read = (bus->error_status & IDE_RETRY_READ) != 0;
2518 /* The error status must be cleared before resubmitting the request: The
2519 * request may fail again, and this case can only be distinguished if the
2520 * called function can set a new error status. */
2521 bus->error_status = 0;
2523 /* The HBA has generically asked to be kicked on retry */
2524 if (error_status & IDE_RETRY_HBA) {
2525 if (s->bus->dma->ops->restart) {
2526 s->bus->dma->ops->restart(s->bus->dma);
2530 if (error_status & IDE_RETRY_DMA) {
2531 if (error_status & IDE_RETRY_TRIM) {
2532 ide_restart_dma(s, IDE_DMA_TRIM);
2534 ide_restart_dma(s, is_read ? IDE_DMA_READ : IDE_DMA_WRITE);
2536 } else if (error_status & IDE_RETRY_PIO) {
2540 ide_sector_write(s);
2542 } else if (error_status & IDE_RETRY_FLUSH) {
2546 * We've not got any bits to tell us about ATAPI - but
2547 * we do have the end_transfer_func that tells us what
2548 * we're trying to do.
2550 if (s->end_transfer_func == ide_atapi_cmd) {
2551 ide_atapi_dma_restart(s);
2556 static void ide_restart_cb(void *opaque, int running, RunState state)
2558 IDEBus *bus = opaque;
2564 bus->bh = qemu_bh_new(ide_restart_bh, bus);
2565 qemu_bh_schedule(bus->bh);
2569 void ide_register_restart_cb(IDEBus *bus)
2571 if (bus->dma->ops->restart_dma) {
2572 qemu_add_vm_change_state_handler(ide_restart_cb, bus);
2576 static IDEDMA ide_dma_nop = {
2577 .ops = &ide_dma_nop_ops,
2581 void ide_init2(IDEBus *bus, qemu_irq irq)
2585 for(i = 0; i < 2; i++) {
2587 ide_reset(&bus->ifs[i]);
2590 bus->dma = &ide_dma_nop;
2593 static const MemoryRegionPortio ide_portio_list[] = {
2594 { 0, 8, 1, .read = ide_ioport_read, .write = ide_ioport_write },
2595 { 0, 1, 2, .read = ide_data_readw, .write = ide_data_writew },
2596 { 0, 1, 4, .read = ide_data_readl, .write = ide_data_writel },
2597 PORTIO_END_OF_LIST(),
2600 static const MemoryRegionPortio ide_portio2_list[] = {
2601 { 0, 1, 1, .read = ide_status_read, .write = ide_cmd_write },
2602 PORTIO_END_OF_LIST(),
2605 void ide_init_ioport(IDEBus *bus, ISADevice *dev, int iobase, int iobase2)
2607 /* ??? Assume only ISA and PCI configurations, and that the PCI-ISA
2608 bridge has been setup properly to always register with ISA. */
2609 isa_register_portio_list(dev, iobase, ide_portio_list, bus, "ide");
2612 isa_register_portio_list(dev, iobase2, ide_portio2_list, bus, "ide");
2616 static bool is_identify_set(void *opaque, int version_id)
2618 IDEState *s = opaque;
2620 return s->identify_set != 0;
2623 static EndTransferFunc* transfer_end_table[] = {
2627 ide_atapi_cmd_reply_end,
2629 ide_dummy_transfer_stop,
2632 static int transfer_end_table_idx(EndTransferFunc *fn)
2636 for (i = 0; i < ARRAY_SIZE(transfer_end_table); i++)
2637 if (transfer_end_table[i] == fn)
2643 static int ide_drive_post_load(void *opaque, int version_id)
2645 IDEState *s = opaque;
2647 if (s->blk && s->identify_set) {
2648 blk_set_enable_write_cache(s->blk, !!(s->identify_data[85] & (1 << 5)));
2653 static int ide_drive_pio_post_load(void *opaque, int version_id)
2655 IDEState *s = opaque;
2657 if (s->end_transfer_fn_idx >= ARRAY_SIZE(transfer_end_table)) {
2660 s->end_transfer_func = transfer_end_table[s->end_transfer_fn_idx];
2661 s->data_ptr = s->io_buffer + s->cur_io_buffer_offset;
2662 s->data_end = s->data_ptr + s->cur_io_buffer_len;
2663 s->atapi_dma = s->feature & 1; /* as per cmd_packet */
2668 static void ide_drive_pio_pre_save(void *opaque)
2670 IDEState *s = opaque;
2673 s->cur_io_buffer_offset = s->data_ptr - s->io_buffer;
2674 s->cur_io_buffer_len = s->data_end - s->data_ptr;
2676 idx = transfer_end_table_idx(s->end_transfer_func);
2678 fprintf(stderr, "%s: invalid end_transfer_func for DRQ_STAT\n",
2680 s->end_transfer_fn_idx = 2;
2682 s->end_transfer_fn_idx = idx;
2686 static bool ide_drive_pio_state_needed(void *opaque)
2688 IDEState *s = opaque;
2690 return ((s->status & DRQ_STAT) != 0)
2691 || (s->bus->error_status & IDE_RETRY_PIO);
2694 static bool ide_tray_state_needed(void *opaque)
2696 IDEState *s = opaque;
2698 return s->tray_open || s->tray_locked;
2701 static bool ide_atapi_gesn_needed(void *opaque)
2703 IDEState *s = opaque;
2705 return s->events.new_media || s->events.eject_request;
2708 static bool ide_error_needed(void *opaque)
2710 IDEBus *bus = opaque;
2712 return (bus->error_status != 0);
2715 /* Fields for GET_EVENT_STATUS_NOTIFICATION ATAPI command */
2716 static const VMStateDescription vmstate_ide_atapi_gesn_state = {
2717 .name ="ide_drive/atapi/gesn_state",
2719 .minimum_version_id = 1,
2720 .needed = ide_atapi_gesn_needed,
2721 .fields = (VMStateField[]) {
2722 VMSTATE_BOOL(events.new_media, IDEState),
2723 VMSTATE_BOOL(events.eject_request, IDEState),
2724 VMSTATE_END_OF_LIST()
2728 static const VMStateDescription vmstate_ide_tray_state = {
2729 .name = "ide_drive/tray_state",
2731 .minimum_version_id = 1,
2732 .needed = ide_tray_state_needed,
2733 .fields = (VMStateField[]) {
2734 VMSTATE_BOOL(tray_open, IDEState),
2735 VMSTATE_BOOL(tray_locked, IDEState),
2736 VMSTATE_END_OF_LIST()
2740 static const VMStateDescription vmstate_ide_drive_pio_state = {
2741 .name = "ide_drive/pio_state",
2743 .minimum_version_id = 1,
2744 .pre_save = ide_drive_pio_pre_save,
2745 .post_load = ide_drive_pio_post_load,
2746 .needed = ide_drive_pio_state_needed,
2747 .fields = (VMStateField[]) {
2748 VMSTATE_INT32(req_nb_sectors, IDEState),
2749 VMSTATE_VARRAY_INT32(io_buffer, IDEState, io_buffer_total_len, 1,
2750 vmstate_info_uint8, uint8_t),
2751 VMSTATE_INT32(cur_io_buffer_offset, IDEState),
2752 VMSTATE_INT32(cur_io_buffer_len, IDEState),
2753 VMSTATE_UINT8(end_transfer_fn_idx, IDEState),
2754 VMSTATE_INT32(elementary_transfer_size, IDEState),
2755 VMSTATE_INT32(packet_transfer_size, IDEState),
2756 VMSTATE_END_OF_LIST()
2760 const VMStateDescription vmstate_ide_drive = {
2761 .name = "ide_drive",
2763 .minimum_version_id = 0,
2764 .post_load = ide_drive_post_load,
2765 .fields = (VMStateField[]) {
2766 VMSTATE_INT32(mult_sectors, IDEState),
2767 VMSTATE_INT32(identify_set, IDEState),
2768 VMSTATE_BUFFER_TEST(identify_data, IDEState, is_identify_set),
2769 VMSTATE_UINT8(feature, IDEState),
2770 VMSTATE_UINT8(error, IDEState),
2771 VMSTATE_UINT32(nsector, IDEState),
2772 VMSTATE_UINT8(sector, IDEState),
2773 VMSTATE_UINT8(lcyl, IDEState),
2774 VMSTATE_UINT8(hcyl, IDEState),
2775 VMSTATE_UINT8(hob_feature, IDEState),
2776 VMSTATE_UINT8(hob_sector, IDEState),
2777 VMSTATE_UINT8(hob_nsector, IDEState),
2778 VMSTATE_UINT8(hob_lcyl, IDEState),
2779 VMSTATE_UINT8(hob_hcyl, IDEState),
2780 VMSTATE_UINT8(select, IDEState),
2781 VMSTATE_UINT8(status, IDEState),
2782 VMSTATE_UINT8(lba48, IDEState),
2783 VMSTATE_UINT8(sense_key, IDEState),
2784 VMSTATE_UINT8(asc, IDEState),
2785 VMSTATE_UINT8_V(cdrom_changed, IDEState, 3),
2786 VMSTATE_END_OF_LIST()
2788 .subsections = (const VMStateDescription*[]) {
2789 &vmstate_ide_drive_pio_state,
2790 &vmstate_ide_tray_state,
2791 &vmstate_ide_atapi_gesn_state,
2796 static const VMStateDescription vmstate_ide_error_status = {
2797 .name ="ide_bus/error",
2799 .minimum_version_id = 1,
2800 .needed = ide_error_needed,
2801 .fields = (VMStateField[]) {
2802 VMSTATE_INT32(error_status, IDEBus),
2803 VMSTATE_INT64_V(retry_sector_num, IDEBus, 2),
2804 VMSTATE_UINT32_V(retry_nsector, IDEBus, 2),
2805 VMSTATE_UINT8_V(retry_unit, IDEBus, 2),
2806 VMSTATE_END_OF_LIST()
2810 const VMStateDescription vmstate_ide_bus = {
2813 .minimum_version_id = 1,
2814 .fields = (VMStateField[]) {
2815 VMSTATE_UINT8(cmd, IDEBus),
2816 VMSTATE_UINT8(unit, IDEBus),
2817 VMSTATE_END_OF_LIST()
2819 .subsections = (const VMStateDescription*[]) {
2820 &vmstate_ide_error_status,
2825 void ide_drive_get(DriveInfo **hd, int n)
2828 int highest_bus = drive_get_max_bus(IF_IDE) + 1;
2829 int max_devs = drive_get_max_devs(IF_IDE);
2830 int n_buses = max_devs ? (n / max_devs) : n;
2833 * Note: The number of actual buses available is not known.
2834 * We compute this based on the size of the DriveInfo* array, n.
2835 * If it is less than max_devs * <num_real_buses>,
2836 * We will stop looking for drives prematurely instead of overfilling
2840 if (highest_bus > n_buses) {
2841 error_report("Too many IDE buses defined (%d > %d)",
2842 highest_bus, n_buses);
2846 for (i = 0; i < n; i++) {
2847 hd[i] = drive_get_by_index(IF_IDE, i);