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
26 #include <hw/i386/pc.h>
27 #include <hw/pci/pci.h>
28 #include <hw/isa/isa.h>
29 #include "qemu/error-report.h"
30 #include "qemu/timer.h"
31 #include "sysemu/sysemu.h"
32 #include "sysemu/dma.h"
33 #include "hw/block/block.h"
34 #include "sysemu/block-backend.h"
36 #include <hw/ide/internal.h>
38 /* These values were based on a Seagate ST3500418AS but have been modified
39 to make more sense in QEMU */
40 static const int smart_attributes[][12] = {
41 /* id, flags, hflags, val, wrst, raw (6 bytes), threshold */
42 /* raw read error rate*/
43 { 0x01, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06},
45 { 0x03, 0x03, 0x00, 0x64, 0x64, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
46 /* start stop count */
47 { 0x04, 0x02, 0x00, 0x64, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14},
48 /* remapped sectors */
49 { 0x05, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24},
51 { 0x09, 0x03, 0x00, 0x64, 0x64, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
52 /* power cycle count */
53 { 0x0c, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
54 /* airflow-temperature-celsius */
55 { 190, 0x03, 0x00, 0x45, 0x45, 0x1f, 0x00, 0x1f, 0x1f, 0x00, 0x00, 0x32},
58 static int ide_handle_rw_error(IDEState *s, int error, int op);
59 static void ide_dummy_transfer_stop(IDEState *s);
61 static void padstr(char *str, const char *src, int len)
64 for(i = 0; i < len; i++) {
73 static void put_le16(uint16_t *p, unsigned int v)
78 static void ide_identify_size(IDEState *s)
80 uint16_t *p = (uint16_t *)s->identify_data;
81 put_le16(p + 60, s->nb_sectors);
82 put_le16(p + 61, s->nb_sectors >> 16);
83 put_le16(p + 100, s->nb_sectors);
84 put_le16(p + 101, s->nb_sectors >> 16);
85 put_le16(p + 102, s->nb_sectors >> 32);
86 put_le16(p + 103, s->nb_sectors >> 48);
89 static void ide_identify(IDEState *s)
93 IDEDevice *dev = s->unit ? s->bus->slave : s->bus->master;
95 p = (uint16_t *)s->identify_data;
96 if (s->identify_set) {
99 memset(p, 0, sizeof(s->identify_data));
101 put_le16(p + 0, 0x0040);
102 put_le16(p + 1, s->cylinders);
103 put_le16(p + 3, s->heads);
104 put_le16(p + 4, 512 * s->sectors); /* XXX: retired, remove ? */
105 put_le16(p + 5, 512); /* XXX: retired, remove ? */
106 put_le16(p + 6, s->sectors);
107 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
108 put_le16(p + 20, 3); /* XXX: retired, remove ? */
109 put_le16(p + 21, 512); /* cache size in sectors */
110 put_le16(p + 22, 4); /* ecc bytes */
111 padstr((char *)(p + 23), s->version, 8); /* firmware version */
112 padstr((char *)(p + 27), s->drive_model_str, 40); /* model */
113 #if MAX_MULT_SECTORS > 1
114 put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
116 put_le16(p + 48, 1); /* dword I/O */
117 put_le16(p + 49, (1 << 11) | (1 << 9) | (1 << 8)); /* DMA and LBA supported */
118 put_le16(p + 51, 0x200); /* PIO transfer cycle */
119 put_le16(p + 52, 0x200); /* DMA transfer cycle */
120 put_le16(p + 53, 1 | (1 << 1) | (1 << 2)); /* words 54-58,64-70,88 are valid */
121 put_le16(p + 54, s->cylinders);
122 put_le16(p + 55, s->heads);
123 put_le16(p + 56, s->sectors);
124 oldsize = s->cylinders * s->heads * s->sectors;
125 put_le16(p + 57, oldsize);
126 put_le16(p + 58, oldsize >> 16);
128 put_le16(p + 59, 0x100 | s->mult_sectors);
129 /* *(p + 60) := nb_sectors -- see ide_identify_size */
130 /* *(p + 61) := nb_sectors >> 16 -- see ide_identify_size */
131 put_le16(p + 62, 0x07); /* single word dma0-2 supported */
132 put_le16(p + 63, 0x07); /* mdma0-2 supported */
133 put_le16(p + 64, 0x03); /* pio3-4 supported */
134 put_le16(p + 65, 120);
135 put_le16(p + 66, 120);
136 put_le16(p + 67, 120);
137 put_le16(p + 68, 120);
138 if (dev && dev->conf.discard_granularity) {
139 put_le16(p + 69, (1 << 14)); /* determinate TRIM behavior */
143 put_le16(p + 75, s->ncq_queues - 1);
145 put_le16(p + 76, (1 << 8));
148 put_le16(p + 80, 0xf0); /* ata3 -> ata6 supported */
149 put_le16(p + 81, 0x16); /* conforms to ata5 */
150 /* 14=NOP supported, 5=WCACHE supported, 0=SMART supported */
151 put_le16(p + 82, (1 << 14) | (1 << 5) | 1);
152 /* 13=flush_cache_ext,12=flush_cache,10=lba48 */
153 put_le16(p + 83, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10));
154 /* 14=set to 1, 8=has WWN, 1=SMART self test, 0=SMART error logging */
156 put_le16(p + 84, (1 << 14) | (1 << 8) | 0);
158 put_le16(p + 84, (1 << 14) | 0);
160 /* 14 = NOP supported, 5=WCACHE enabled, 0=SMART feature set enabled */
161 if (blk_enable_write_cache(s->blk)) {
162 put_le16(p + 85, (1 << 14) | (1 << 5) | 1);
164 put_le16(p + 85, (1 << 14) | 1);
166 /* 13=flush_cache_ext,12=flush_cache,10=lba48 */
167 put_le16(p + 86, (1 << 13) | (1 <<12) | (1 << 10));
168 /* 14=set to 1, 8=has WWN, 1=SMART self test, 0=SMART error logging */
170 put_le16(p + 87, (1 << 14) | (1 << 8) | 0);
172 put_le16(p + 87, (1 << 14) | 0);
174 put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
175 put_le16(p + 93, 1 | (1 << 14) | 0x2000);
176 /* *(p + 100) := nb_sectors -- see ide_identify_size */
177 /* *(p + 101) := nb_sectors >> 16 -- see ide_identify_size */
178 /* *(p + 102) := nb_sectors >> 32 -- see ide_identify_size */
179 /* *(p + 103) := nb_sectors >> 48 -- see ide_identify_size */
181 if (dev && dev->conf.physical_block_size)
182 put_le16(p + 106, 0x6000 | get_physical_block_exp(&dev->conf));
184 /* LE 16-bit words 111-108 contain 64-bit World Wide Name */
185 put_le16(p + 108, s->wwn >> 48);
186 put_le16(p + 109, s->wwn >> 32);
187 put_le16(p + 110, s->wwn >> 16);
188 put_le16(p + 111, s->wwn);
190 if (dev && dev->conf.discard_granularity) {
191 put_le16(p + 169, 1); /* TRIM support */
194 ide_identify_size(s);
198 memcpy(s->io_buffer, p, sizeof(s->identify_data));
201 static void ide_atapi_identify(IDEState *s)
205 p = (uint16_t *)s->identify_data;
206 if (s->identify_set) {
209 memset(p, 0, sizeof(s->identify_data));
211 /* Removable CDROM, 50us response, 12 byte packets */
212 put_le16(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0));
213 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
214 put_le16(p + 20, 3); /* buffer type */
215 put_le16(p + 21, 512); /* cache size in sectors */
216 put_le16(p + 22, 4); /* ecc bytes */
217 padstr((char *)(p + 23), s->version, 8); /* firmware version */
218 padstr((char *)(p + 27), s->drive_model_str, 40); /* model */
219 put_le16(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */
221 put_le16(p + 49, 1 << 9 | 1 << 8); /* DMA and LBA supported */
222 put_le16(p + 53, 7); /* words 64-70, 54-58, 88 valid */
223 put_le16(p + 62, 7); /* single word dma0-2 supported */
224 put_le16(p + 63, 7); /* mdma0-2 supported */
226 put_le16(p + 49, 1 << 9); /* LBA supported, no DMA */
227 put_le16(p + 53, 3); /* words 64-70, 54-58 valid */
228 put_le16(p + 63, 0x103); /* DMA modes XXX: may be incorrect */
230 put_le16(p + 64, 3); /* pio3-4 supported */
231 put_le16(p + 65, 0xb4); /* minimum DMA multiword tx cycle time */
232 put_le16(p + 66, 0xb4); /* recommended DMA multiword tx cycle time */
233 put_le16(p + 67, 0x12c); /* minimum PIO cycle time without flow control */
234 put_le16(p + 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */
236 put_le16(p + 71, 30); /* in ns */
237 put_le16(p + 72, 30); /* in ns */
240 put_le16(p + 75, s->ncq_queues - 1);
242 put_le16(p + 76, (1 << 8));
245 put_le16(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */
247 put_le16(p + 84, (1 << 8)); /* supports WWN for words 108-111 */
248 put_le16(p + 87, (1 << 8)); /* WWN enabled */
252 put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
256 /* LE 16-bit words 111-108 contain 64-bit World Wide Name */
257 put_le16(p + 108, s->wwn >> 48);
258 put_le16(p + 109, s->wwn >> 32);
259 put_le16(p + 110, s->wwn >> 16);
260 put_le16(p + 111, s->wwn);
266 memcpy(s->io_buffer, p, sizeof(s->identify_data));
269 static void ide_cfata_identify_size(IDEState *s)
271 uint16_t *p = (uint16_t *)s->identify_data;
272 put_le16(p + 7, s->nb_sectors >> 16); /* Sectors per card */
273 put_le16(p + 8, s->nb_sectors); /* Sectors per card */
274 put_le16(p + 60, s->nb_sectors); /* Total LBA sectors */
275 put_le16(p + 61, s->nb_sectors >> 16); /* Total LBA sectors */
278 static void ide_cfata_identify(IDEState *s)
283 p = (uint16_t *)s->identify_data;
284 if (s->identify_set) {
287 memset(p, 0, sizeof(s->identify_data));
289 cur_sec = s->cylinders * s->heads * s->sectors;
291 put_le16(p + 0, 0x848a); /* CF Storage Card signature */
292 put_le16(p + 1, s->cylinders); /* Default cylinders */
293 put_le16(p + 3, s->heads); /* Default heads */
294 put_le16(p + 6, s->sectors); /* Default sectors per track */
295 /* *(p + 7) := nb_sectors >> 16 -- see ide_cfata_identify_size */
296 /* *(p + 8) := nb_sectors -- see ide_cfata_identify_size */
297 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
298 put_le16(p + 22, 0x0004); /* ECC bytes */
299 padstr((char *) (p + 23), s->version, 8); /* Firmware Revision */
300 padstr((char *) (p + 27), s->drive_model_str, 40);/* Model number */
301 #if MAX_MULT_SECTORS > 1
302 put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
304 put_le16(p + 47, 0x0000);
306 put_le16(p + 49, 0x0f00); /* Capabilities */
307 put_le16(p + 51, 0x0002); /* PIO cycle timing mode */
308 put_le16(p + 52, 0x0001); /* DMA cycle timing mode */
309 put_le16(p + 53, 0x0003); /* Translation params valid */
310 put_le16(p + 54, s->cylinders); /* Current cylinders */
311 put_le16(p + 55, s->heads); /* Current heads */
312 put_le16(p + 56, s->sectors); /* Current sectors */
313 put_le16(p + 57, cur_sec); /* Current capacity */
314 put_le16(p + 58, cur_sec >> 16); /* Current capacity */
315 if (s->mult_sectors) /* Multiple sector setting */
316 put_le16(p + 59, 0x100 | s->mult_sectors);
317 /* *(p + 60) := nb_sectors -- see ide_cfata_identify_size */
318 /* *(p + 61) := nb_sectors >> 16 -- see ide_cfata_identify_size */
319 put_le16(p + 63, 0x0203); /* Multiword DMA capability */
320 put_le16(p + 64, 0x0001); /* Flow Control PIO support */
321 put_le16(p + 65, 0x0096); /* Min. Multiword DMA cycle */
322 put_le16(p + 66, 0x0096); /* Rec. Multiword DMA cycle */
323 put_le16(p + 68, 0x00b4); /* Min. PIO cycle time */
324 put_le16(p + 82, 0x400c); /* Command Set supported */
325 put_le16(p + 83, 0x7068); /* Command Set supported */
326 put_le16(p + 84, 0x4000); /* Features supported */
327 put_le16(p + 85, 0x000c); /* Command Set enabled */
328 put_le16(p + 86, 0x7044); /* Command Set enabled */
329 put_le16(p + 87, 0x4000); /* Features enabled */
330 put_le16(p + 91, 0x4060); /* Current APM level */
331 put_le16(p + 129, 0x0002); /* Current features option */
332 put_le16(p + 130, 0x0005); /* Reassigned sectors */
333 put_le16(p + 131, 0x0001); /* Initial power mode */
334 put_le16(p + 132, 0x0000); /* User signature */
335 put_le16(p + 160, 0x8100); /* Power requirement */
336 put_le16(p + 161, 0x8001); /* CF command set */
338 ide_cfata_identify_size(s);
342 memcpy(s->io_buffer, p, sizeof(s->identify_data));
345 static void ide_set_signature(IDEState *s)
347 s->select &= 0xf0; /* clear head */
351 if (s->drive_kind == IDE_CD) {
363 typedef struct TrimAIOCB {
373 static void trim_aio_cancel(BlockAIOCB *acb)
375 TrimAIOCB *iocb = container_of(acb, TrimAIOCB, common);
377 /* Exit the loop so ide_issue_trim_cb will not continue */
378 iocb->j = iocb->qiov->niov - 1;
379 iocb->i = (iocb->qiov->iov[iocb->j].iov_len / 8) - 1;
381 iocb->ret = -ECANCELED;
384 blk_aio_cancel_async(iocb->aiocb);
389 static const AIOCBInfo trim_aiocb_info = {
390 .aiocb_size = sizeof(TrimAIOCB),
391 .cancel_async = trim_aio_cancel,
394 static void ide_trim_bh_cb(void *opaque)
396 TrimAIOCB *iocb = opaque;
398 iocb->common.cb(iocb->common.opaque, iocb->ret);
400 qemu_bh_delete(iocb->bh);
402 qemu_aio_unref(iocb);
405 static void ide_issue_trim_cb(void *opaque, int ret)
407 TrimAIOCB *iocb = opaque;
409 while (iocb->j < iocb->qiov->niov) {
411 while (++iocb->i < iocb->qiov->iov[j].iov_len / 8) {
413 uint64_t *buffer = iocb->qiov->iov[j].iov_base;
415 /* 6-byte LBA + 2-byte range per entry */
416 uint64_t entry = le64_to_cpu(buffer[i]);
417 uint64_t sector = entry & 0x0000ffffffffffffULL;
418 uint16_t count = entry >> 48;
424 /* Got an entry! Submit and exit. */
425 iocb->aiocb = blk_aio_discard(iocb->blk, sector, count,
426 ide_issue_trim_cb, opaque);
439 qemu_bh_schedule(iocb->bh);
443 BlockAIOCB *ide_issue_trim(BlockBackend *blk,
444 int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
445 BlockCompletionFunc *cb, void *opaque)
449 iocb = blk_aio_get(&trim_aiocb_info, blk, cb, opaque);
451 iocb->bh = qemu_bh_new(ide_trim_bh_cb, iocb);
456 ide_issue_trim_cb(iocb, 0);
457 return &iocb->common;
460 static inline void ide_abort_command(IDEState *s)
462 ide_transfer_stop(s);
463 s->status = READY_STAT | ERR_STAT;
467 /* prepare data transfer and tell what to do after */
468 void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
469 EndTransferFunc *end_transfer_func)
471 s->end_transfer_func = end_transfer_func;
473 s->data_end = buf + size;
474 if (!(s->status & ERR_STAT)) {
475 s->status |= DRQ_STAT;
477 if (s->bus->dma->ops->start_transfer) {
478 s->bus->dma->ops->start_transfer(s->bus->dma);
482 static void ide_cmd_done(IDEState *s)
484 if (s->bus->dma->ops->cmd_done) {
485 s->bus->dma->ops->cmd_done(s->bus->dma);
489 void ide_transfer_stop(IDEState *s)
491 s->end_transfer_func = ide_transfer_stop;
492 s->data_ptr = s->io_buffer;
493 s->data_end = s->io_buffer;
494 s->status &= ~DRQ_STAT;
498 int64_t ide_get_sector(IDEState *s)
501 if (s->select & 0x40) {
504 sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) |
505 (s->lcyl << 8) | s->sector;
507 sector_num = ((int64_t)s->hob_hcyl << 40) |
508 ((int64_t) s->hob_lcyl << 32) |
509 ((int64_t) s->hob_sector << 24) |
510 ((int64_t) s->hcyl << 16) |
511 ((int64_t) s->lcyl << 8) | s->sector;
514 sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
515 (s->select & 0x0f) * s->sectors + (s->sector - 1);
520 void ide_set_sector(IDEState *s, int64_t sector_num)
523 if (s->select & 0x40) {
525 s->select = (s->select & 0xf0) | (sector_num >> 24);
526 s->hcyl = (sector_num >> 16);
527 s->lcyl = (sector_num >> 8);
528 s->sector = (sector_num);
530 s->sector = sector_num;
531 s->lcyl = sector_num >> 8;
532 s->hcyl = sector_num >> 16;
533 s->hob_sector = sector_num >> 24;
534 s->hob_lcyl = sector_num >> 32;
535 s->hob_hcyl = sector_num >> 40;
538 cyl = sector_num / (s->heads * s->sectors);
539 r = sector_num % (s->heads * s->sectors);
542 s->select = (s->select & 0xf0) | ((r / s->sectors) & 0x0f);
543 s->sector = (r % s->sectors) + 1;
547 static void ide_rw_error(IDEState *s) {
548 ide_abort_command(s);
552 static bool ide_sect_range_ok(IDEState *s,
553 uint64_t sector, uint64_t nb_sectors)
555 uint64_t total_sectors;
557 blk_get_geometry(s->blk, &total_sectors);
558 if (sector > total_sectors || nb_sectors > total_sectors - sector) {
564 static void ide_sector_read_cb(void *opaque, int ret)
566 IDEState *s = opaque;
570 s->status &= ~BUSY_STAT;
572 if (ret == -ECANCELED) {
575 block_acct_done(blk_get_stats(s->blk), &s->acct);
577 if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO |
584 if (n > s->req_nb_sectors) {
585 n = s->req_nb_sectors;
588 /* Allow the guest to read the io_buffer */
589 ide_transfer_start(s, s->io_buffer, n * BDRV_SECTOR_SIZE, ide_sector_read);
593 ide_set_sector(s, ide_get_sector(s) + n);
597 void ide_sector_read(IDEState *s)
602 s->status = READY_STAT | SEEK_STAT;
603 s->error = 0; /* not needed by IDE spec, but needed by Windows */
604 sector_num = ide_get_sector(s);
608 ide_transfer_stop(s);
612 s->status |= BUSY_STAT;
614 if (n > s->req_nb_sectors) {
615 n = s->req_nb_sectors;
618 #if defined(DEBUG_IDE)
619 printf("sector=%" PRId64 "\n", sector_num);
622 if (!ide_sect_range_ok(s, sector_num, n)) {
627 s->iov.iov_base = s->io_buffer;
628 s->iov.iov_len = n * BDRV_SECTOR_SIZE;
629 qemu_iovec_init_external(&s->qiov, &s->iov, 1);
631 block_acct_start(blk_get_stats(s->blk), &s->acct,
632 n * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
633 s->pio_aiocb = blk_aio_readv(s->blk, sector_num, &s->qiov, n,
634 ide_sector_read_cb, s);
637 static void dma_buf_commit(IDEState *s, uint32_t tx_bytes)
639 if (s->bus->dma->ops->commit_buf) {
640 s->bus->dma->ops->commit_buf(s->bus->dma, tx_bytes);
642 qemu_sglist_destroy(&s->sg);
645 void ide_set_inactive(IDEState *s, bool more)
647 s->bus->dma->aiocb = NULL;
648 if (s->bus->dma->ops->set_inactive) {
649 s->bus->dma->ops->set_inactive(s->bus->dma, more);
654 void ide_dma_error(IDEState *s)
656 dma_buf_commit(s, 0);
657 ide_abort_command(s);
658 ide_set_inactive(s, false);
662 static int ide_handle_rw_error(IDEState *s, int error, int op)
664 bool is_read = (op & IDE_RETRY_READ) != 0;
665 BlockErrorAction action = blk_get_error_action(s->blk, is_read, error);
667 if (action == BLOCK_ERROR_ACTION_STOP) {
668 s->bus->dma->ops->set_unit(s->bus->dma, s->unit);
669 s->bus->error_status = op;
670 } else if (action == BLOCK_ERROR_ACTION_REPORT) {
671 if (op & IDE_RETRY_DMA) {
677 blk_error_action(s->blk, action, is_read, error);
678 return action != BLOCK_ERROR_ACTION_IGNORE;
681 void ide_dma_cb(void *opaque, int ret)
683 IDEState *s = opaque;
686 bool stay_active = false;
688 if (ret == -ECANCELED) {
692 int op = IDE_RETRY_DMA;
694 if (s->dma_cmd == IDE_DMA_READ)
695 op |= IDE_RETRY_READ;
696 else if (s->dma_cmd == IDE_DMA_TRIM)
697 op |= IDE_RETRY_TRIM;
699 if (ide_handle_rw_error(s, -ret, op)) {
704 n = s->io_buffer_size >> 9;
705 if (n > s->nsector) {
706 /* The PRDs were longer than needed for this request. Shorten them so
707 * we don't get a negative remainder. The Active bit must remain set
708 * after the request completes. */
713 sector_num = ide_get_sector(s);
715 assert(s->io_buffer_size == s->sg.size);
716 dma_buf_commit(s, s->io_buffer_size);
718 ide_set_sector(s, sector_num);
722 /* end of transfer ? */
723 if (s->nsector == 0) {
724 s->status = READY_STAT | SEEK_STAT;
729 /* launch next transfer */
731 s->io_buffer_index = 0;
732 s->io_buffer_size = n * 512;
733 if (s->bus->dma->ops->prepare_buf(s->bus->dma, ide_cmd_is_read(s)) == 0) {
734 /* The PRDs were too short. Reset the Active bit, but don't raise an
736 s->status = READY_STAT | SEEK_STAT;
741 printf("ide_dma_cb: sector_num=%" PRId64 " n=%d, cmd_cmd=%d\n",
742 sector_num, n, s->dma_cmd);
745 if ((s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) &&
746 !ide_sect_range_ok(s, sector_num, n)) {
751 switch (s->dma_cmd) {
753 s->bus->dma->aiocb = dma_blk_read(s->blk, &s->sg, sector_num,
757 s->bus->dma->aiocb = dma_blk_write(s->blk, &s->sg, sector_num,
761 s->bus->dma->aiocb = dma_blk_io(s->blk, &s->sg, sector_num,
762 ide_issue_trim, ide_dma_cb, s,
763 DMA_DIRECTION_TO_DEVICE);
769 if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) {
770 block_acct_done(blk_get_stats(s->blk), &s->acct);
772 ide_set_inactive(s, stay_active);
775 static void ide_sector_start_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
777 s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT;
778 s->io_buffer_index = 0;
779 s->io_buffer_size = 0;
780 s->dma_cmd = dma_cmd;
784 block_acct_start(blk_get_stats(s->blk), &s->acct,
785 s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
788 block_acct_start(blk_get_stats(s->blk), &s->acct,
789 s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
795 ide_start_dma(s, ide_dma_cb);
798 void ide_start_dma(IDEState *s, BlockCompletionFunc *cb)
800 if (s->bus->dma->ops->start_dma) {
801 s->bus->dma->ops->start_dma(s->bus->dma, s, cb);
805 static void ide_sector_write_timer_cb(void *opaque)
807 IDEState *s = opaque;
811 static void ide_sector_write_cb(void *opaque, int ret)
813 IDEState *s = opaque;
816 if (ret == -ECANCELED) {
819 block_acct_done(blk_get_stats(s->blk), &s->acct);
822 s->status &= ~BUSY_STAT;
825 if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO)) {
831 if (n > s->req_nb_sectors) {
832 n = s->req_nb_sectors;
835 if (s->nsector == 0) {
836 /* no more sectors to write */
837 ide_transfer_stop(s);
840 if (n1 > s->req_nb_sectors) {
841 n1 = s->req_nb_sectors;
843 ide_transfer_start(s, s->io_buffer, n1 * BDRV_SECTOR_SIZE,
846 ide_set_sector(s, ide_get_sector(s) + n);
848 if (win2k_install_hack && ((++s->irq_count % 16) == 0)) {
849 /* It seems there is a bug in the Windows 2000 installer HDD
850 IDE driver which fills the disk with empty logs when the
851 IDE write IRQ comes too early. This hack tries to correct
852 that at the expense of slower write performances. Use this
853 option _only_ to install Windows 2000. You must disable it
855 timer_mod(s->sector_write_timer,
856 qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + (get_ticks_per_sec() / 1000));
862 void ide_sector_write(IDEState *s)
867 s->status = READY_STAT | SEEK_STAT | BUSY_STAT;
868 sector_num = ide_get_sector(s);
869 #if defined(DEBUG_IDE)
870 printf("sector=%" PRId64 "\n", sector_num);
873 if (n > s->req_nb_sectors) {
874 n = s->req_nb_sectors;
877 if (!ide_sect_range_ok(s, sector_num, n)) {
882 s->iov.iov_base = s->io_buffer;
883 s->iov.iov_len = n * BDRV_SECTOR_SIZE;
884 qemu_iovec_init_external(&s->qiov, &s->iov, 1);
886 block_acct_start(blk_get_stats(s->blk), &s->acct,
887 n * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
888 s->pio_aiocb = blk_aio_writev(s->blk, sector_num, &s->qiov, n,
889 ide_sector_write_cb, s);
892 static void ide_flush_cb(void *opaque, int ret)
894 IDEState *s = opaque;
898 if (ret == -ECANCELED) {
902 /* XXX: What sector number to set here? */
903 if (ide_handle_rw_error(s, -ret, IDE_RETRY_FLUSH)) {
909 block_acct_done(blk_get_stats(s->blk), &s->acct);
911 s->status = READY_STAT | SEEK_STAT;
916 void ide_flush_cache(IDEState *s)
918 if (s->blk == NULL) {
923 s->status |= BUSY_STAT;
924 block_acct_start(blk_get_stats(s->blk), &s->acct, 0, BLOCK_ACCT_FLUSH);
925 s->pio_aiocb = blk_aio_flush(s->blk, ide_flush_cb, s);
928 static void ide_cfata_metadata_inquiry(IDEState *s)
933 p = (uint16_t *) s->io_buffer;
935 spd = ((s->mdata_size - 1) >> 9) + 1;
937 put_le16(p + 0, 0x0001); /* Data format revision */
938 put_le16(p + 1, 0x0000); /* Media property: silicon */
939 put_le16(p + 2, s->media_changed); /* Media status */
940 put_le16(p + 3, s->mdata_size & 0xffff); /* Capacity in bytes (low) */
941 put_le16(p + 4, s->mdata_size >> 16); /* Capacity in bytes (high) */
942 put_le16(p + 5, spd & 0xffff); /* Sectors per device (low) */
943 put_le16(p + 6, spd >> 16); /* Sectors per device (high) */
946 static void ide_cfata_metadata_read(IDEState *s)
950 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
951 s->status = ERR_STAT;
956 p = (uint16_t *) s->io_buffer;
959 put_le16(p + 0, s->media_changed); /* Media status */
960 memcpy(p + 1, s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
961 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
962 s->nsector << 9), 0x200 - 2));
965 static void ide_cfata_metadata_write(IDEState *s)
967 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
968 s->status = ERR_STAT;
973 s->media_changed = 0;
975 memcpy(s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
977 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
978 s->nsector << 9), 0x200 - 2));
981 /* called when the inserted state of the media has changed */
982 static void ide_cd_change_cb(void *opaque, bool load)
984 IDEState *s = opaque;
987 s->tray_open = !load;
988 blk_get_geometry(s->blk, &nb_sectors);
989 s->nb_sectors = nb_sectors;
992 * First indicate to the guest that a CD has been removed. That's
993 * done on the next command the guest sends us.
995 * Then we set UNIT_ATTENTION, by which the guest will
996 * detect a new CD in the drive. See ide_atapi_cmd() for details.
998 s->cdrom_changed = 1;
999 s->events.new_media = true;
1000 s->events.eject_request = false;
1001 ide_set_irq(s->bus);
1004 static void ide_cd_eject_request_cb(void *opaque, bool force)
1006 IDEState *s = opaque;
1008 s->events.eject_request = true;
1010 s->tray_locked = false;
1012 ide_set_irq(s->bus);
1015 static void ide_cmd_lba48_transform(IDEState *s, int lba48)
1019 /* handle the 'magic' 0 nsector count conversion here. to avoid
1020 * fiddling with the rest of the read logic, we just store the
1021 * full sector count in ->nsector and ignore ->hob_nsector from now
1027 if (!s->nsector && !s->hob_nsector)
1030 int lo = s->nsector;
1031 int hi = s->hob_nsector;
1033 s->nsector = (hi << 8) | lo;
1038 static void ide_clear_hob(IDEBus *bus)
1040 /* any write clears HOB high bit of device control register */
1041 bus->ifs[0].select &= ~(1 << 7);
1042 bus->ifs[1].select &= ~(1 << 7);
1045 void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
1047 IDEBus *bus = opaque;
1050 printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
1055 /* ignore writes to command block while busy with previous command */
1056 if (addr != 7 && (idebus_active_if(bus)->status & (BUSY_STAT|DRQ_STAT)))
1064 /* NOTE: data is written to the two drives */
1065 bus->ifs[0].hob_feature = bus->ifs[0].feature;
1066 bus->ifs[1].hob_feature = bus->ifs[1].feature;
1067 bus->ifs[0].feature = val;
1068 bus->ifs[1].feature = val;
1072 bus->ifs[0].hob_nsector = bus->ifs[0].nsector;
1073 bus->ifs[1].hob_nsector = bus->ifs[1].nsector;
1074 bus->ifs[0].nsector = val;
1075 bus->ifs[1].nsector = val;
1079 bus->ifs[0].hob_sector = bus->ifs[0].sector;
1080 bus->ifs[1].hob_sector = bus->ifs[1].sector;
1081 bus->ifs[0].sector = val;
1082 bus->ifs[1].sector = val;
1086 bus->ifs[0].hob_lcyl = bus->ifs[0].lcyl;
1087 bus->ifs[1].hob_lcyl = bus->ifs[1].lcyl;
1088 bus->ifs[0].lcyl = val;
1089 bus->ifs[1].lcyl = val;
1093 bus->ifs[0].hob_hcyl = bus->ifs[0].hcyl;
1094 bus->ifs[1].hob_hcyl = bus->ifs[1].hcyl;
1095 bus->ifs[0].hcyl = val;
1096 bus->ifs[1].hcyl = val;
1099 /* FIXME: HOB readback uses bit 7 */
1100 bus->ifs[0].select = (val & ~0x10) | 0xa0;
1101 bus->ifs[1].select = (val | 0x10) | 0xa0;
1103 bus->unit = (val >> 4) & 1;
1108 ide_exec_cmd(bus, val);
1113 static bool cmd_nop(IDEState *s, uint8_t cmd)
1118 static bool cmd_data_set_management(IDEState *s, uint8_t cmd)
1120 switch (s->feature) {
1123 ide_sector_start_dma(s, IDE_DMA_TRIM);
1129 ide_abort_command(s);
1133 static bool cmd_identify(IDEState *s, uint8_t cmd)
1135 if (s->blk && s->drive_kind != IDE_CD) {
1136 if (s->drive_kind != IDE_CFATA) {
1139 ide_cfata_identify(s);
1141 s->status = READY_STAT | SEEK_STAT;
1142 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1143 ide_set_irq(s->bus);
1146 if (s->drive_kind == IDE_CD) {
1147 ide_set_signature(s);
1149 ide_abort_command(s);
1155 static bool cmd_verify(IDEState *s, uint8_t cmd)
1157 bool lba48 = (cmd == WIN_VERIFY_EXT);
1159 /* do sector number check ? */
1160 ide_cmd_lba48_transform(s, lba48);
1165 static bool cmd_set_multiple_mode(IDEState *s, uint8_t cmd)
1167 if (s->drive_kind == IDE_CFATA && s->nsector == 0) {
1168 /* Disable Read and Write Multiple */
1169 s->mult_sectors = 0;
1170 } else if ((s->nsector & 0xff) != 0 &&
1171 ((s->nsector & 0xff) > MAX_MULT_SECTORS ||
1172 (s->nsector & (s->nsector - 1)) != 0)) {
1173 ide_abort_command(s);
1175 s->mult_sectors = s->nsector & 0xff;
1181 static bool cmd_read_multiple(IDEState *s, uint8_t cmd)
1183 bool lba48 = (cmd == WIN_MULTREAD_EXT);
1185 if (!s->blk || !s->mult_sectors) {
1186 ide_abort_command(s);
1190 ide_cmd_lba48_transform(s, lba48);
1191 s->req_nb_sectors = s->mult_sectors;
1196 static bool cmd_write_multiple(IDEState *s, uint8_t cmd)
1198 bool lba48 = (cmd == WIN_MULTWRITE_EXT);
1201 if (!s->blk || !s->mult_sectors) {
1202 ide_abort_command(s);
1206 ide_cmd_lba48_transform(s, lba48);
1208 s->req_nb_sectors = s->mult_sectors;
1209 n = MIN(s->nsector, s->req_nb_sectors);
1211 s->status = SEEK_STAT | READY_STAT;
1212 ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
1214 s->media_changed = 1;
1219 static bool cmd_read_pio(IDEState *s, uint8_t cmd)
1221 bool lba48 = (cmd == WIN_READ_EXT);
1223 if (s->drive_kind == IDE_CD) {
1224 ide_set_signature(s); /* odd, but ATA4 8.27.5.2 requires it */
1225 ide_abort_command(s);
1230 ide_abort_command(s);
1234 ide_cmd_lba48_transform(s, lba48);
1235 s->req_nb_sectors = 1;
1241 static bool cmd_write_pio(IDEState *s, uint8_t cmd)
1243 bool lba48 = (cmd == WIN_WRITE_EXT);
1246 ide_abort_command(s);
1250 ide_cmd_lba48_transform(s, lba48);
1252 s->req_nb_sectors = 1;
1253 s->status = SEEK_STAT | READY_STAT;
1254 ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
1256 s->media_changed = 1;
1261 static bool cmd_read_dma(IDEState *s, uint8_t cmd)
1263 bool lba48 = (cmd == WIN_READDMA_EXT);
1266 ide_abort_command(s);
1270 ide_cmd_lba48_transform(s, lba48);
1271 ide_sector_start_dma(s, IDE_DMA_READ);
1276 static bool cmd_write_dma(IDEState *s, uint8_t cmd)
1278 bool lba48 = (cmd == WIN_WRITEDMA_EXT);
1281 ide_abort_command(s);
1285 ide_cmd_lba48_transform(s, lba48);
1286 ide_sector_start_dma(s, IDE_DMA_WRITE);
1288 s->media_changed = 1;
1293 static bool cmd_flush_cache(IDEState *s, uint8_t cmd)
1299 static bool cmd_seek(IDEState *s, uint8_t cmd)
1301 /* XXX: Check that seek is within bounds */
1305 static bool cmd_read_native_max(IDEState *s, uint8_t cmd)
1307 bool lba48 = (cmd == WIN_READ_NATIVE_MAX_EXT);
1309 /* Refuse if no sectors are addressable (e.g. medium not inserted) */
1310 if (s->nb_sectors == 0) {
1311 ide_abort_command(s);
1315 ide_cmd_lba48_transform(s, lba48);
1316 ide_set_sector(s, s->nb_sectors - 1);
1321 static bool cmd_check_power_mode(IDEState *s, uint8_t cmd)
1323 s->nsector = 0xff; /* device active or idle */
1327 static bool cmd_set_features(IDEState *s, uint8_t cmd)
1329 uint16_t *identify_data;
1332 ide_abort_command(s);
1336 /* XXX: valid for CDROM ? */
1337 switch (s->feature) {
1338 case 0x02: /* write cache enable */
1339 blk_set_enable_write_cache(s->blk, true);
1340 identify_data = (uint16_t *)s->identify_data;
1341 put_le16(identify_data + 85, (1 << 14) | (1 << 5) | 1);
1343 case 0x82: /* write cache disable */
1344 blk_set_enable_write_cache(s->blk, false);
1345 identify_data = (uint16_t *)s->identify_data;
1346 put_le16(identify_data + 85, (1 << 14) | 1);
1349 case 0xcc: /* reverting to power-on defaults enable */
1350 case 0x66: /* reverting to power-on defaults disable */
1351 case 0xaa: /* read look-ahead enable */
1352 case 0x55: /* read look-ahead disable */
1353 case 0x05: /* set advanced power management mode */
1354 case 0x85: /* disable advanced power management mode */
1355 case 0x69: /* NOP */
1356 case 0x67: /* NOP */
1357 case 0x96: /* NOP */
1358 case 0x9a: /* NOP */
1359 case 0x42: /* enable Automatic Acoustic Mode */
1360 case 0xc2: /* disable Automatic Acoustic Mode */
1362 case 0x03: /* set transfer mode */
1364 uint8_t val = s->nsector & 0x07;
1365 identify_data = (uint16_t *)s->identify_data;
1367 switch (s->nsector >> 3) {
1368 case 0x00: /* pio default */
1369 case 0x01: /* pio mode */
1370 put_le16(identify_data + 62, 0x07);
1371 put_le16(identify_data + 63, 0x07);
1372 put_le16(identify_data + 88, 0x3f);
1374 case 0x02: /* sigle word dma mode*/
1375 put_le16(identify_data + 62, 0x07 | (1 << (val + 8)));
1376 put_le16(identify_data + 63, 0x07);
1377 put_le16(identify_data + 88, 0x3f);
1379 case 0x04: /* mdma mode */
1380 put_le16(identify_data + 62, 0x07);
1381 put_le16(identify_data + 63, 0x07 | (1 << (val + 8)));
1382 put_le16(identify_data + 88, 0x3f);
1384 case 0x08: /* udma mode */
1385 put_le16(identify_data + 62, 0x07);
1386 put_le16(identify_data + 63, 0x07);
1387 put_le16(identify_data + 88, 0x3f | (1 << (val + 8)));
1397 ide_abort_command(s);
1402 /*** ATAPI commands ***/
1404 static bool cmd_identify_packet(IDEState *s, uint8_t cmd)
1406 ide_atapi_identify(s);
1407 s->status = READY_STAT | SEEK_STAT;
1408 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1409 ide_set_irq(s->bus);
1413 static bool cmd_exec_dev_diagnostic(IDEState *s, uint8_t cmd)
1415 ide_set_signature(s);
1417 if (s->drive_kind == IDE_CD) {
1418 s->status = 0; /* ATAPI spec (v6) section 9.10 defines packet
1419 * devices to return a clear status register
1420 * with READY_STAT *not* set. */
1423 s->status = READY_STAT | SEEK_STAT;
1424 /* The bits of the error register are not as usual for this command!
1425 * They are part of the regular output (this is why ERR_STAT isn't set)
1426 * Device 0 passed, Device 1 passed or not present. */
1428 ide_set_irq(s->bus);
1434 static bool cmd_device_reset(IDEState *s, uint8_t cmd)
1436 ide_set_signature(s);
1437 s->status = 0x00; /* NOTE: READY is _not_ set */
1443 static bool cmd_packet(IDEState *s, uint8_t cmd)
1445 /* overlapping commands not supported */
1446 if (s->feature & 0x02) {
1447 ide_abort_command(s);
1451 s->status = READY_STAT | SEEK_STAT;
1452 s->atapi_dma = s->feature & 1;
1454 ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
1460 /*** CF-ATA commands ***/
1462 static bool cmd_cfa_req_ext_error_code(IDEState *s, uint8_t cmd)
1464 s->error = 0x09; /* miscellaneous error */
1465 s->status = READY_STAT | SEEK_STAT;
1466 ide_set_irq(s->bus);
1471 static bool cmd_cfa_erase_sectors(IDEState *s, uint8_t cmd)
1473 /* WIN_SECURITY_FREEZE_LOCK has the same ID as CFA_WEAR_LEVEL and is
1474 * required for Windows 8 to work with AHCI */
1476 if (cmd == CFA_WEAR_LEVEL) {
1480 if (cmd == CFA_ERASE_SECTORS) {
1481 s->media_changed = 1;
1487 static bool cmd_cfa_translate_sector(IDEState *s, uint8_t cmd)
1489 s->status = READY_STAT | SEEK_STAT;
1491 memset(s->io_buffer, 0, 0x200);
1492 s->io_buffer[0x00] = s->hcyl; /* Cyl MSB */
1493 s->io_buffer[0x01] = s->lcyl; /* Cyl LSB */
1494 s->io_buffer[0x02] = s->select; /* Head */
1495 s->io_buffer[0x03] = s->sector; /* Sector */
1496 s->io_buffer[0x04] = ide_get_sector(s) >> 16; /* LBA MSB */
1497 s->io_buffer[0x05] = ide_get_sector(s) >> 8; /* LBA */
1498 s->io_buffer[0x06] = ide_get_sector(s) >> 0; /* LBA LSB */
1499 s->io_buffer[0x13] = 0x00; /* Erase flag */
1500 s->io_buffer[0x18] = 0x00; /* Hot count */
1501 s->io_buffer[0x19] = 0x00; /* Hot count */
1502 s->io_buffer[0x1a] = 0x01; /* Hot count */
1504 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1505 ide_set_irq(s->bus);
1510 static bool cmd_cfa_access_metadata_storage(IDEState *s, uint8_t cmd)
1512 switch (s->feature) {
1513 case 0x02: /* Inquiry Metadata Storage */
1514 ide_cfata_metadata_inquiry(s);
1516 case 0x03: /* Read Metadata Storage */
1517 ide_cfata_metadata_read(s);
1519 case 0x04: /* Write Metadata Storage */
1520 ide_cfata_metadata_write(s);
1523 ide_abort_command(s);
1527 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1528 s->status = 0x00; /* NOTE: READY is _not_ set */
1529 ide_set_irq(s->bus);
1534 static bool cmd_ibm_sense_condition(IDEState *s, uint8_t cmd)
1536 switch (s->feature) {
1537 case 0x01: /* sense temperature in device */
1538 s->nsector = 0x50; /* +20 C */
1541 ide_abort_command(s);
1549 /*** SMART commands ***/
1551 static bool cmd_smart(IDEState *s, uint8_t cmd)
1555 if (s->hcyl != 0xc2 || s->lcyl != 0x4f) {
1559 if (!s->smart_enabled && s->feature != SMART_ENABLE) {
1563 switch (s->feature) {
1565 s->smart_enabled = 0;
1569 s->smart_enabled = 1;
1572 case SMART_ATTR_AUTOSAVE:
1573 switch (s->sector) {
1575 s->smart_autosave = 0;
1578 s->smart_autosave = 1;
1586 if (!s->smart_errors) {
1595 case SMART_READ_THRESH:
1596 memset(s->io_buffer, 0, 0x200);
1597 s->io_buffer[0] = 0x01; /* smart struct version */
1599 for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
1600 s->io_buffer[2 + 0 + (n * 12)] = smart_attributes[n][0];
1601 s->io_buffer[2 + 1 + (n * 12)] = smart_attributes[n][11];
1605 for (n = 0; n < 511; n++) {
1606 s->io_buffer[511] += s->io_buffer[n];
1608 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1610 s->status = READY_STAT | SEEK_STAT;
1611 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1612 ide_set_irq(s->bus);
1615 case SMART_READ_DATA:
1616 memset(s->io_buffer, 0, 0x200);
1617 s->io_buffer[0] = 0x01; /* smart struct version */
1619 for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
1621 for (i = 0; i < 11; i++) {
1622 s->io_buffer[2 + i + (n * 12)] = smart_attributes[n][i];
1626 s->io_buffer[362] = 0x02 | (s->smart_autosave ? 0x80 : 0x00);
1627 if (s->smart_selftest_count == 0) {
1628 s->io_buffer[363] = 0;
1631 s->smart_selftest_data[3 +
1632 (s->smart_selftest_count - 1) *
1635 s->io_buffer[364] = 0x20;
1636 s->io_buffer[365] = 0x01;
1637 /* offline data collection capacity: execute + self-test*/
1638 s->io_buffer[367] = (1 << 4 | 1 << 3 | 1);
1639 s->io_buffer[368] = 0x03; /* smart capability (1) */
1640 s->io_buffer[369] = 0x00; /* smart capability (2) */
1641 s->io_buffer[370] = 0x01; /* error logging supported */
1642 s->io_buffer[372] = 0x02; /* minutes for poll short test */
1643 s->io_buffer[373] = 0x36; /* minutes for poll ext test */
1644 s->io_buffer[374] = 0x01; /* minutes for poll conveyance */
1646 for (n = 0; n < 511; n++) {
1647 s->io_buffer[511] += s->io_buffer[n];
1649 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1651 s->status = READY_STAT | SEEK_STAT;
1652 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1653 ide_set_irq(s->bus);
1656 case SMART_READ_LOG:
1657 switch (s->sector) {
1658 case 0x01: /* summary smart error log */
1659 memset(s->io_buffer, 0, 0x200);
1660 s->io_buffer[0] = 0x01;
1661 s->io_buffer[1] = 0x00; /* no error entries */
1662 s->io_buffer[452] = s->smart_errors & 0xff;
1663 s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8;
1665 for (n = 0; n < 511; n++) {
1666 s->io_buffer[511] += s->io_buffer[n];
1668 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1670 case 0x06: /* smart self test log */
1671 memset(s->io_buffer, 0, 0x200);
1672 s->io_buffer[0] = 0x01;
1673 if (s->smart_selftest_count == 0) {
1674 s->io_buffer[508] = 0;
1676 s->io_buffer[508] = s->smart_selftest_count;
1677 for (n = 2; n < 506; n++) {
1678 s->io_buffer[n] = s->smart_selftest_data[n];
1682 for (n = 0; n < 511; n++) {
1683 s->io_buffer[511] += s->io_buffer[n];
1685 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1690 s->status = READY_STAT | SEEK_STAT;
1691 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1692 ide_set_irq(s->bus);
1695 case SMART_EXECUTE_OFFLINE:
1696 switch (s->sector) {
1697 case 0: /* off-line routine */
1698 case 1: /* short self test */
1699 case 2: /* extended self test */
1700 s->smart_selftest_count++;
1701 if (s->smart_selftest_count > 21) {
1702 s->smart_selftest_count = 1;
1704 n = 2 + (s->smart_selftest_count - 1) * 24;
1705 s->smart_selftest_data[n] = s->sector;
1706 s->smart_selftest_data[n + 1] = 0x00; /* OK and finished */
1707 s->smart_selftest_data[n + 2] = 0x34; /* hour count lsb */
1708 s->smart_selftest_data[n + 3] = 0x12; /* hour count msb */
1717 ide_abort_command(s);
1721 #define HD_OK (1u << IDE_HD)
1722 #define CD_OK (1u << IDE_CD)
1723 #define CFA_OK (1u << IDE_CFATA)
1724 #define HD_CFA_OK (HD_OK | CFA_OK)
1725 #define ALL_OK (HD_OK | CD_OK | CFA_OK)
1727 /* Set the Disk Seek Completed status bit during completion */
1728 #define SET_DSC (1u << 8)
1730 /* See ACS-2 T13/2015-D Table B.2 Command codes */
1731 static const struct {
1732 /* Returns true if the completion code should be run */
1733 bool (*handler)(IDEState *s, uint8_t cmd);
1735 } ide_cmd_table[0x100] = {
1736 /* NOP not implemented, mandatory for CD */
1737 [CFA_REQ_EXT_ERROR_CODE] = { cmd_cfa_req_ext_error_code, CFA_OK },
1738 [WIN_DSM] = { cmd_data_set_management, ALL_OK },
1739 [WIN_DEVICE_RESET] = { cmd_device_reset, CD_OK },
1740 [WIN_RECAL] = { cmd_nop, HD_CFA_OK | SET_DSC},
1741 [WIN_READ] = { cmd_read_pio, ALL_OK },
1742 [WIN_READ_ONCE] = { cmd_read_pio, ALL_OK },
1743 [WIN_READ_EXT] = { cmd_read_pio, HD_CFA_OK },
1744 [WIN_READDMA_EXT] = { cmd_read_dma, HD_CFA_OK },
1745 [WIN_READ_NATIVE_MAX_EXT] = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
1746 [WIN_MULTREAD_EXT] = { cmd_read_multiple, HD_CFA_OK },
1747 [WIN_WRITE] = { cmd_write_pio, HD_CFA_OK },
1748 [WIN_WRITE_ONCE] = { cmd_write_pio, HD_CFA_OK },
1749 [WIN_WRITE_EXT] = { cmd_write_pio, HD_CFA_OK },
1750 [WIN_WRITEDMA_EXT] = { cmd_write_dma, HD_CFA_OK },
1751 [CFA_WRITE_SECT_WO_ERASE] = { cmd_write_pio, CFA_OK },
1752 [WIN_MULTWRITE_EXT] = { cmd_write_multiple, HD_CFA_OK },
1753 [WIN_WRITE_VERIFY] = { cmd_write_pio, HD_CFA_OK },
1754 [WIN_VERIFY] = { cmd_verify, HD_CFA_OK | SET_DSC },
1755 [WIN_VERIFY_ONCE] = { cmd_verify, HD_CFA_OK | SET_DSC },
1756 [WIN_VERIFY_EXT] = { cmd_verify, HD_CFA_OK | SET_DSC },
1757 [WIN_SEEK] = { cmd_seek, HD_CFA_OK | SET_DSC },
1758 [CFA_TRANSLATE_SECTOR] = { cmd_cfa_translate_sector, CFA_OK },
1759 [WIN_DIAGNOSE] = { cmd_exec_dev_diagnostic, ALL_OK },
1760 [WIN_SPECIFY] = { cmd_nop, HD_CFA_OK | SET_DSC },
1761 [WIN_STANDBYNOW2] = { cmd_nop, ALL_OK },
1762 [WIN_IDLEIMMEDIATE2] = { cmd_nop, ALL_OK },
1763 [WIN_STANDBY2] = { cmd_nop, ALL_OK },
1764 [WIN_SETIDLE2] = { cmd_nop, ALL_OK },
1765 [WIN_CHECKPOWERMODE2] = { cmd_check_power_mode, ALL_OK | SET_DSC },
1766 [WIN_SLEEPNOW2] = { cmd_nop, ALL_OK },
1767 [WIN_PACKETCMD] = { cmd_packet, CD_OK },
1768 [WIN_PIDENTIFY] = { cmd_identify_packet, CD_OK },
1769 [WIN_SMART] = { cmd_smart, HD_CFA_OK | SET_DSC },
1770 [CFA_ACCESS_METADATA_STORAGE] = { cmd_cfa_access_metadata_storage, CFA_OK },
1771 [CFA_ERASE_SECTORS] = { cmd_cfa_erase_sectors, CFA_OK | SET_DSC },
1772 [WIN_MULTREAD] = { cmd_read_multiple, HD_CFA_OK },
1773 [WIN_MULTWRITE] = { cmd_write_multiple, HD_CFA_OK },
1774 [WIN_SETMULT] = { cmd_set_multiple_mode, HD_CFA_OK | SET_DSC },
1775 [WIN_READDMA] = { cmd_read_dma, HD_CFA_OK },
1776 [WIN_READDMA_ONCE] = { cmd_read_dma, HD_CFA_OK },
1777 [WIN_WRITEDMA] = { cmd_write_dma, HD_CFA_OK },
1778 [WIN_WRITEDMA_ONCE] = { cmd_write_dma, HD_CFA_OK },
1779 [CFA_WRITE_MULTI_WO_ERASE] = { cmd_write_multiple, CFA_OK },
1780 [WIN_STANDBYNOW1] = { cmd_nop, ALL_OK },
1781 [WIN_IDLEIMMEDIATE] = { cmd_nop, ALL_OK },
1782 [WIN_STANDBY] = { cmd_nop, ALL_OK },
1783 [WIN_SETIDLE1] = { cmd_nop, ALL_OK },
1784 [WIN_CHECKPOWERMODE1] = { cmd_check_power_mode, ALL_OK | SET_DSC },
1785 [WIN_SLEEPNOW1] = { cmd_nop, ALL_OK },
1786 [WIN_FLUSH_CACHE] = { cmd_flush_cache, ALL_OK },
1787 [WIN_FLUSH_CACHE_EXT] = { cmd_flush_cache, HD_CFA_OK },
1788 [WIN_IDENTIFY] = { cmd_identify, ALL_OK },
1789 [WIN_SETFEATURES] = { cmd_set_features, ALL_OK | SET_DSC },
1790 [IBM_SENSE_CONDITION] = { cmd_ibm_sense_condition, CFA_OK | SET_DSC },
1791 [CFA_WEAR_LEVEL] = { cmd_cfa_erase_sectors, HD_CFA_OK | SET_DSC },
1792 [WIN_READ_NATIVE_MAX] = { cmd_read_native_max, ALL_OK | SET_DSC },
1795 static bool ide_cmd_permitted(IDEState *s, uint32_t cmd)
1797 return cmd < ARRAY_SIZE(ide_cmd_table)
1798 && (ide_cmd_table[cmd].flags & (1u << s->drive_kind));
1801 void ide_exec_cmd(IDEBus *bus, uint32_t val)
1806 #if defined(DEBUG_IDE)
1807 printf("ide: CMD=%02x\n", val);
1809 s = idebus_active_if(bus);
1810 /* ignore commands to non existent slave */
1811 if (s != bus->ifs && !s->blk) {
1815 /* Only DEVICE RESET is allowed while BSY or/and DRQ are set */
1816 if ((s->status & (BUSY_STAT|DRQ_STAT)) && val != WIN_DEVICE_RESET)
1819 if (!ide_cmd_permitted(s, val)) {
1820 ide_abort_command(s);
1821 ide_set_irq(s->bus);
1825 s->status = READY_STAT | BUSY_STAT;
1828 complete = ide_cmd_table[val].handler(s, val);
1830 s->status &= ~BUSY_STAT;
1831 assert(!!s->error == !!(s->status & ERR_STAT));
1833 if ((ide_cmd_table[val].flags & SET_DSC) && !s->error) {
1834 s->status |= SEEK_STAT;
1838 ide_set_irq(s->bus);
1842 uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
1844 IDEBus *bus = opaque;
1845 IDEState *s = idebus_active_if(bus);
1850 /* FIXME: HOB readback uses bit 7, but it's always set right now */
1851 //hob = s->select & (1 << 7);
1858 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
1859 (s != bus->ifs && !s->blk)) {
1864 ret = s->hob_feature;
1868 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
1871 ret = s->nsector & 0xff;
1873 ret = s->hob_nsector;
1877 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
1882 ret = s->hob_sector;
1886 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
1895 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
1904 if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
1912 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
1913 (s != bus->ifs && !s->blk)) {
1918 qemu_irq_lower(bus->irq);
1922 printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
1927 uint32_t ide_status_read(void *opaque, uint32_t addr)
1929 IDEBus *bus = opaque;
1930 IDEState *s = idebus_active_if(bus);
1933 if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
1934 (s != bus->ifs && !s->blk)) {
1940 printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
1945 void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val)
1947 IDEBus *bus = opaque;
1952 printf("ide: write control addr=0x%x val=%02x\n", addr, val);
1954 /* common for both drives */
1955 if (!(bus->cmd & IDE_CMD_RESET) &&
1956 (val & IDE_CMD_RESET)) {
1957 /* reset low to high */
1958 for(i = 0;i < 2; i++) {
1960 s->status = BUSY_STAT | SEEK_STAT;
1963 } else if ((bus->cmd & IDE_CMD_RESET) &&
1964 !(val & IDE_CMD_RESET)) {
1966 for(i = 0;i < 2; i++) {
1968 if (s->drive_kind == IDE_CD)
1969 s->status = 0x00; /* NOTE: READY is _not_ set */
1971 s->status = READY_STAT | SEEK_STAT;
1972 ide_set_signature(s);
1980 * Returns true if the running PIO transfer is a PIO out (i.e. data is
1981 * transferred from the device to the guest), false if it's a PIO in
1983 static bool ide_is_pio_out(IDEState *s)
1985 if (s->end_transfer_func == ide_sector_write ||
1986 s->end_transfer_func == ide_atapi_cmd) {
1988 } else if (s->end_transfer_func == ide_sector_read ||
1989 s->end_transfer_func == ide_transfer_stop ||
1990 s->end_transfer_func == ide_atapi_cmd_reply_end ||
1991 s->end_transfer_func == ide_dummy_transfer_stop) {
1998 void ide_data_writew(void *opaque, uint32_t addr, uint32_t val)
2000 IDEBus *bus = opaque;
2001 IDEState *s = idebus_active_if(bus);
2004 /* PIO data access allowed only when DRQ bit is set. The result of a write
2005 * during PIO out is indeterminate, just ignore it. */
2006 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
2011 *(uint16_t *)p = le16_to_cpu(val);
2014 if (p >= s->data_end)
2015 s->end_transfer_func(s);
2018 uint32_t ide_data_readw(void *opaque, uint32_t addr)
2020 IDEBus *bus = opaque;
2021 IDEState *s = idebus_active_if(bus);
2025 /* PIO data access allowed only when DRQ bit is set. The result of a read
2026 * during PIO in is indeterminate, return 0 and don't move forward. */
2027 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
2032 ret = cpu_to_le16(*(uint16_t *)p);
2035 if (p >= s->data_end)
2036 s->end_transfer_func(s);
2040 void ide_data_writel(void *opaque, uint32_t addr, uint32_t val)
2042 IDEBus *bus = opaque;
2043 IDEState *s = idebus_active_if(bus);
2046 /* PIO data access allowed only when DRQ bit is set. The result of a write
2047 * during PIO out is indeterminate, just ignore it. */
2048 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
2053 *(uint32_t *)p = le32_to_cpu(val);
2056 if (p >= s->data_end)
2057 s->end_transfer_func(s);
2060 uint32_t ide_data_readl(void *opaque, uint32_t addr)
2062 IDEBus *bus = opaque;
2063 IDEState *s = idebus_active_if(bus);
2067 /* PIO data access allowed only when DRQ bit is set. The result of a read
2068 * during PIO in is indeterminate, return 0 and don't move forward. */
2069 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
2074 ret = cpu_to_le32(*(uint32_t *)p);
2077 if (p >= s->data_end)
2078 s->end_transfer_func(s);
2082 static void ide_dummy_transfer_stop(IDEState *s)
2084 s->data_ptr = s->io_buffer;
2085 s->data_end = s->io_buffer;
2086 s->io_buffer[0] = 0xff;
2087 s->io_buffer[1] = 0xff;
2088 s->io_buffer[2] = 0xff;
2089 s->io_buffer[3] = 0xff;
2092 static void ide_reset(IDEState *s)
2095 printf("ide: reset\n");
2099 blk_aio_cancel(s->pio_aiocb);
2100 s->pio_aiocb = NULL;
2103 if (s->drive_kind == IDE_CFATA)
2104 s->mult_sectors = 0;
2106 s->mult_sectors = MAX_MULT_SECTORS;
2123 s->status = READY_STAT | SEEK_STAT;
2127 /* ATAPI specific */
2130 s->cdrom_changed = 0;
2131 s->packet_transfer_size = 0;
2132 s->elementary_transfer_size = 0;
2133 s->io_buffer_index = 0;
2134 s->cd_sector_size = 0;
2139 s->io_buffer_size = 0;
2140 s->req_nb_sectors = 0;
2142 ide_set_signature(s);
2143 /* init the transfer handler so that 0xffff is returned on data
2145 s->end_transfer_func = ide_dummy_transfer_stop;
2146 ide_dummy_transfer_stop(s);
2147 s->media_changed = 0;
2150 void ide_bus_reset(IDEBus *bus)
2154 ide_reset(&bus->ifs[0]);
2155 ide_reset(&bus->ifs[1]);
2158 /* pending async DMA */
2159 if (bus->dma->aiocb) {
2161 printf("aio_cancel\n");
2163 blk_aio_cancel(bus->dma->aiocb);
2164 bus->dma->aiocb = NULL;
2167 /* reset dma provider too */
2168 if (bus->dma->ops->reset) {
2169 bus->dma->ops->reset(bus->dma);
2173 static bool ide_cd_is_tray_open(void *opaque)
2175 return ((IDEState *)opaque)->tray_open;
2178 static bool ide_cd_is_medium_locked(void *opaque)
2180 return ((IDEState *)opaque)->tray_locked;
2183 static void ide_resize_cb(void *opaque)
2185 IDEState *s = opaque;
2186 uint64_t nb_sectors;
2188 if (!s->identify_set) {
2192 blk_get_geometry(s->blk, &nb_sectors);
2193 s->nb_sectors = nb_sectors;
2195 /* Update the identify data buffer. */
2196 if (s->drive_kind == IDE_CFATA) {
2197 ide_cfata_identify_size(s);
2199 /* IDE_CD uses a different set of callbacks entirely. */
2200 assert(s->drive_kind != IDE_CD);
2201 ide_identify_size(s);
2205 static const BlockDevOps ide_cd_block_ops = {
2206 .change_media_cb = ide_cd_change_cb,
2207 .eject_request_cb = ide_cd_eject_request_cb,
2208 .is_tray_open = ide_cd_is_tray_open,
2209 .is_medium_locked = ide_cd_is_medium_locked,
2212 static const BlockDevOps ide_hd_block_ops = {
2213 .resize_cb = ide_resize_cb,
2216 int ide_init_drive(IDEState *s, BlockBackend *blk, IDEDriveKind kind,
2217 const char *version, const char *serial, const char *model,
2219 uint32_t cylinders, uint32_t heads, uint32_t secs,
2222 uint64_t nb_sectors;
2225 s->drive_kind = kind;
2227 blk_get_geometry(blk, &nb_sectors);
2228 s->cylinders = cylinders;
2231 s->chs_trans = chs_trans;
2232 s->nb_sectors = nb_sectors;
2234 /* The SMART values should be preserved across power cycles
2236 s->smart_enabled = 1;
2237 s->smart_autosave = 1;
2238 s->smart_errors = 0;
2239 s->smart_selftest_count = 0;
2240 if (kind == IDE_CD) {
2241 blk_set_dev_ops(blk, &ide_cd_block_ops, s);
2242 blk_set_guest_block_size(blk, 2048);
2244 if (!blk_is_inserted(s->blk)) {
2245 error_report("Device needs media, but drive is empty");
2248 if (blk_is_read_only(blk)) {
2249 error_report("Can't use a read-only drive");
2252 blk_set_dev_ops(blk, &ide_hd_block_ops, s);
2255 pstrcpy(s->drive_serial_str, sizeof(s->drive_serial_str), serial);
2257 snprintf(s->drive_serial_str, sizeof(s->drive_serial_str),
2258 "QM%05d", s->drive_serial);
2261 pstrcpy(s->drive_model_str, sizeof(s->drive_model_str), model);
2265 strcpy(s->drive_model_str, "QEMU DVD-ROM");
2268 strcpy(s->drive_model_str, "QEMU MICRODRIVE");
2271 strcpy(s->drive_model_str, "QEMU HARDDISK");
2277 pstrcpy(s->version, sizeof(s->version), version);
2279 pstrcpy(s->version, sizeof(s->version), qemu_get_version());
2283 blk_iostatus_enable(blk);
2287 static void ide_init1(IDEBus *bus, int unit)
2289 static int drive_serial = 1;
2290 IDEState *s = &bus->ifs[unit];
2294 s->drive_serial = drive_serial++;
2295 /* we need at least 2k alignment for accessing CDROMs using O_DIRECT */
2296 s->io_buffer_total_len = IDE_DMA_BUF_SECTORS*512 + 4;
2297 s->io_buffer = qemu_memalign(2048, s->io_buffer_total_len);
2298 memset(s->io_buffer, 0, s->io_buffer_total_len);
2300 s->smart_selftest_data = blk_blockalign(s->blk, 512);
2301 memset(s->smart_selftest_data, 0, 512);
2303 s->sector_write_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
2304 ide_sector_write_timer_cb, s);
2307 static int ide_nop_int(IDEDMA *dma, int x)
2312 static void ide_nop_restart(void *opaque, int x, RunState y)
2316 static const IDEDMAOps ide_dma_nop_ops = {
2317 .prepare_buf = ide_nop_int,
2318 .rw_buf = ide_nop_int,
2319 .set_unit = ide_nop_int,
2320 .restart_cb = ide_nop_restart,
2323 static IDEDMA ide_dma_nop = {
2324 .ops = &ide_dma_nop_ops,
2328 void ide_init2(IDEBus *bus, qemu_irq irq)
2332 for(i = 0; i < 2; i++) {
2334 ide_reset(&bus->ifs[i]);
2337 bus->dma = &ide_dma_nop;
2340 static const MemoryRegionPortio ide_portio_list[] = {
2341 { 0, 8, 1, .read = ide_ioport_read, .write = ide_ioport_write },
2342 { 0, 2, 2, .read = ide_data_readw, .write = ide_data_writew },
2343 { 0, 4, 4, .read = ide_data_readl, .write = ide_data_writel },
2344 PORTIO_END_OF_LIST(),
2347 static const MemoryRegionPortio ide_portio2_list[] = {
2348 { 0, 1, 1, .read = ide_status_read, .write = ide_cmd_write },
2349 PORTIO_END_OF_LIST(),
2352 void ide_init_ioport(IDEBus *bus, ISADevice *dev, int iobase, int iobase2)
2354 /* ??? Assume only ISA and PCI configurations, and that the PCI-ISA
2355 bridge has been setup properly to always register with ISA. */
2356 isa_register_portio_list(dev, iobase, ide_portio_list, bus, "ide");
2359 isa_register_portio_list(dev, iobase2, ide_portio2_list, bus, "ide");
2363 static bool is_identify_set(void *opaque, int version_id)
2365 IDEState *s = opaque;
2367 return s->identify_set != 0;
2370 static EndTransferFunc* transfer_end_table[] = {
2374 ide_atapi_cmd_reply_end,
2376 ide_dummy_transfer_stop,
2379 static int transfer_end_table_idx(EndTransferFunc *fn)
2383 for (i = 0; i < ARRAY_SIZE(transfer_end_table); i++)
2384 if (transfer_end_table[i] == fn)
2390 static int ide_drive_post_load(void *opaque, int version_id)
2392 IDEState *s = opaque;
2394 if (s->identify_set) {
2395 blk_set_enable_write_cache(s->blk, !!(s->identify_data[85] & (1 << 5)));
2400 static int ide_drive_pio_post_load(void *opaque, int version_id)
2402 IDEState *s = opaque;
2404 if (s->end_transfer_fn_idx >= ARRAY_SIZE(transfer_end_table)) {
2407 s->end_transfer_func = transfer_end_table[s->end_transfer_fn_idx];
2408 s->data_ptr = s->io_buffer + s->cur_io_buffer_offset;
2409 s->data_end = s->data_ptr + s->cur_io_buffer_len;
2414 static void ide_drive_pio_pre_save(void *opaque)
2416 IDEState *s = opaque;
2419 s->cur_io_buffer_offset = s->data_ptr - s->io_buffer;
2420 s->cur_io_buffer_len = s->data_end - s->data_ptr;
2422 idx = transfer_end_table_idx(s->end_transfer_func);
2424 fprintf(stderr, "%s: invalid end_transfer_func for DRQ_STAT\n",
2426 s->end_transfer_fn_idx = 2;
2428 s->end_transfer_fn_idx = idx;
2432 static bool ide_drive_pio_state_needed(void *opaque)
2434 IDEState *s = opaque;
2436 return ((s->status & DRQ_STAT) != 0)
2437 || (s->bus->error_status & IDE_RETRY_PIO);
2440 static bool ide_tray_state_needed(void *opaque)
2442 IDEState *s = opaque;
2444 return s->tray_open || s->tray_locked;
2447 static bool ide_atapi_gesn_needed(void *opaque)
2449 IDEState *s = opaque;
2451 return s->events.new_media || s->events.eject_request;
2454 static bool ide_error_needed(void *opaque)
2456 IDEBus *bus = opaque;
2458 return (bus->error_status != 0);
2461 /* Fields for GET_EVENT_STATUS_NOTIFICATION ATAPI command */
2462 static const VMStateDescription vmstate_ide_atapi_gesn_state = {
2463 .name ="ide_drive/atapi/gesn_state",
2465 .minimum_version_id = 1,
2466 .fields = (VMStateField[]) {
2467 VMSTATE_BOOL(events.new_media, IDEState),
2468 VMSTATE_BOOL(events.eject_request, IDEState),
2469 VMSTATE_END_OF_LIST()
2473 static const VMStateDescription vmstate_ide_tray_state = {
2474 .name = "ide_drive/tray_state",
2476 .minimum_version_id = 1,
2477 .fields = (VMStateField[]) {
2478 VMSTATE_BOOL(tray_open, IDEState),
2479 VMSTATE_BOOL(tray_locked, IDEState),
2480 VMSTATE_END_OF_LIST()
2484 static const VMStateDescription vmstate_ide_drive_pio_state = {
2485 .name = "ide_drive/pio_state",
2487 .minimum_version_id = 1,
2488 .pre_save = ide_drive_pio_pre_save,
2489 .post_load = ide_drive_pio_post_load,
2490 .fields = (VMStateField[]) {
2491 VMSTATE_INT32(req_nb_sectors, IDEState),
2492 VMSTATE_VARRAY_INT32(io_buffer, IDEState, io_buffer_total_len, 1,
2493 vmstate_info_uint8, uint8_t),
2494 VMSTATE_INT32(cur_io_buffer_offset, IDEState),
2495 VMSTATE_INT32(cur_io_buffer_len, IDEState),
2496 VMSTATE_UINT8(end_transfer_fn_idx, IDEState),
2497 VMSTATE_INT32(elementary_transfer_size, IDEState),
2498 VMSTATE_INT32(packet_transfer_size, IDEState),
2499 VMSTATE_END_OF_LIST()
2503 const VMStateDescription vmstate_ide_drive = {
2504 .name = "ide_drive",
2506 .minimum_version_id = 0,
2507 .post_load = ide_drive_post_load,
2508 .fields = (VMStateField[]) {
2509 VMSTATE_INT32(mult_sectors, IDEState),
2510 VMSTATE_INT32(identify_set, IDEState),
2511 VMSTATE_BUFFER_TEST(identify_data, IDEState, is_identify_set),
2512 VMSTATE_UINT8(feature, IDEState),
2513 VMSTATE_UINT8(error, IDEState),
2514 VMSTATE_UINT32(nsector, IDEState),
2515 VMSTATE_UINT8(sector, IDEState),
2516 VMSTATE_UINT8(lcyl, IDEState),
2517 VMSTATE_UINT8(hcyl, IDEState),
2518 VMSTATE_UINT8(hob_feature, IDEState),
2519 VMSTATE_UINT8(hob_sector, IDEState),
2520 VMSTATE_UINT8(hob_nsector, IDEState),
2521 VMSTATE_UINT8(hob_lcyl, IDEState),
2522 VMSTATE_UINT8(hob_hcyl, IDEState),
2523 VMSTATE_UINT8(select, IDEState),
2524 VMSTATE_UINT8(status, IDEState),
2525 VMSTATE_UINT8(lba48, IDEState),
2526 VMSTATE_UINT8(sense_key, IDEState),
2527 VMSTATE_UINT8(asc, IDEState),
2528 VMSTATE_UINT8_V(cdrom_changed, IDEState, 3),
2529 VMSTATE_END_OF_LIST()
2531 .subsections = (VMStateSubsection []) {
2533 .vmsd = &vmstate_ide_drive_pio_state,
2534 .needed = ide_drive_pio_state_needed,
2536 .vmsd = &vmstate_ide_tray_state,
2537 .needed = ide_tray_state_needed,
2539 .vmsd = &vmstate_ide_atapi_gesn_state,
2540 .needed = ide_atapi_gesn_needed,
2547 static const VMStateDescription vmstate_ide_error_status = {
2548 .name ="ide_bus/error",
2550 .minimum_version_id = 1,
2551 .fields = (VMStateField[]) {
2552 VMSTATE_INT32(error_status, IDEBus),
2553 VMSTATE_END_OF_LIST()
2557 const VMStateDescription vmstate_ide_bus = {
2560 .minimum_version_id = 1,
2561 .fields = (VMStateField[]) {
2562 VMSTATE_UINT8(cmd, IDEBus),
2563 VMSTATE_UINT8(unit, IDEBus),
2564 VMSTATE_END_OF_LIST()
2566 .subsections = (VMStateSubsection []) {
2568 .vmsd = &vmstate_ide_error_status,
2569 .needed = ide_error_needed,
2576 void ide_drive_get(DriveInfo **hd, int n)
2579 int highest_bus = drive_get_max_bus(IF_IDE) + 1;
2580 int max_devs = drive_get_max_devs(IF_IDE);
2581 int n_buses = max_devs ? (n / max_devs) : n;
2584 * Note: The number of actual buses available is not known.
2585 * We compute this based on the size of the DriveInfo* array, n.
2586 * If it is less than max_devs * <num_real_buses>,
2587 * We will stop looking for drives prematurely instead of overfilling
2591 if (highest_bus > n_buses) {
2592 error_report("Too many IDE buses defined (%d > %d)",
2593 highest_bus, n_buses);
2597 for (i = 0; i < n; i++) {
2598 hd[i] = drive_get_by_index(IF_IDE, i);