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
28 #include "qemu-error.h"
29 #include "qemu-timer.h"
33 #include "block_int.h"
35 #include <hw/ide/internal.h>
37 /* These values were based on a Seagate ST3500418AS but have been modified
38 to make more sense in QEMU */
39 static const int smart_attributes[][12] = {
40 /* id, flags, hflags, val, wrst, raw (6 bytes), threshold */
41 /* raw read error rate*/
42 { 0x01, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06},
44 { 0x03, 0x03, 0x00, 0x64, 0x64, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
45 /* start stop count */
46 { 0x04, 0x02, 0x00, 0x64, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14},
47 /* remapped sectors */
48 { 0x05, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24},
50 { 0x09, 0x03, 0x00, 0x64, 0x64, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
51 /* power cycle count */
52 { 0x0c, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
53 /* airflow-temperature-celsius */
54 { 190, 0x03, 0x00, 0x45, 0x45, 0x1f, 0x00, 0x1f, 0x1f, 0x00, 0x00, 0x32},
56 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
59 static int ide_handle_rw_error(IDEState *s, int error, int op);
60 static void ide_dummy_transfer_stop(IDEState *s);
62 static void padstr(char *str, const char *src, int len)
65 for(i = 0; i < len; i++) {
74 static void put_le16(uint16_t *p, unsigned int v)
79 static void ide_identify(IDEState *s)
83 IDEDevice *dev = s->unit ? s->bus->slave : s->bus->master;
85 if (s->identify_set) {
86 memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data));
90 memset(s->io_buffer, 0, 512);
91 p = (uint16_t *)s->io_buffer;
92 put_le16(p + 0, 0x0040);
93 put_le16(p + 1, s->cylinders);
94 put_le16(p + 3, s->heads);
95 put_le16(p + 4, 512 * s->sectors); /* XXX: retired, remove ? */
96 put_le16(p + 5, 512); /* XXX: retired, remove ? */
97 put_le16(p + 6, s->sectors);
98 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
99 put_le16(p + 20, 3); /* XXX: retired, remove ? */
100 put_le16(p + 21, 512); /* cache size in sectors */
101 put_le16(p + 22, 4); /* ecc bytes */
102 padstr((char *)(p + 23), s->version, 8); /* firmware version */
103 padstr((char *)(p + 27), "QEMU HARDDISK", 40); /* model */
104 #if MAX_MULT_SECTORS > 1
105 put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
107 put_le16(p + 48, 1); /* dword I/O */
108 put_le16(p + 49, (1 << 11) | (1 << 9) | (1 << 8)); /* DMA and LBA supported */
109 put_le16(p + 51, 0x200); /* PIO transfer cycle */
110 put_le16(p + 52, 0x200); /* DMA transfer cycle */
111 put_le16(p + 53, 1 | (1 << 1) | (1 << 2)); /* words 54-58,64-70,88 are valid */
112 put_le16(p + 54, s->cylinders);
113 put_le16(p + 55, s->heads);
114 put_le16(p + 56, s->sectors);
115 oldsize = s->cylinders * s->heads * s->sectors;
116 put_le16(p + 57, oldsize);
117 put_le16(p + 58, oldsize >> 16);
119 put_le16(p + 59, 0x100 | s->mult_sectors);
120 put_le16(p + 60, s->nb_sectors);
121 put_le16(p + 61, s->nb_sectors >> 16);
122 put_le16(p + 62, 0x07); /* single word dma0-2 supported */
123 put_le16(p + 63, 0x07); /* mdma0-2 supported */
124 put_le16(p + 64, 0x03); /* pio3-4 supported */
125 put_le16(p + 65, 120);
126 put_le16(p + 66, 120);
127 put_le16(p + 67, 120);
128 put_le16(p + 68, 120);
129 if (dev && dev->conf.discard_granularity) {
130 put_le16(p + 69, (1 << 14)); /* determinate TRIM behavior */
134 put_le16(p + 75, s->ncq_queues - 1);
136 put_le16(p + 76, (1 << 8));
139 put_le16(p + 80, 0xf0); /* ata3 -> ata6 supported */
140 put_le16(p + 81, 0x16); /* conforms to ata5 */
141 /* 14=NOP supported, 5=WCACHE supported, 0=SMART supported */
142 put_le16(p + 82, (1 << 14) | (1 << 5) | 1);
143 /* 13=flush_cache_ext,12=flush_cache,10=lba48 */
144 put_le16(p + 83, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10));
145 /* 14=set to 1, 1=SMART self test, 0=SMART error logging */
146 put_le16(p + 84, (1 << 14) | 0);
147 /* 14 = NOP supported, 5=WCACHE enabled, 0=SMART feature set enabled */
148 if (bdrv_enable_write_cache(s->bs))
149 put_le16(p + 85, (1 << 14) | (1 << 5) | 1);
151 put_le16(p + 85, (1 << 14) | 1);
152 /* 13=flush_cache_ext,12=flush_cache,10=lba48 */
153 put_le16(p + 86, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10));
154 /* 14=set to 1, 1=smart self test, 0=smart error logging */
155 put_le16(p + 87, (1 << 14) | 0);
156 put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
157 put_le16(p + 93, 1 | (1 << 14) | 0x2000);
158 put_le16(p + 100, s->nb_sectors);
159 put_le16(p + 101, s->nb_sectors >> 16);
160 put_le16(p + 102, s->nb_sectors >> 32);
161 put_le16(p + 103, s->nb_sectors >> 48);
163 if (dev && dev->conf.physical_block_size)
164 put_le16(p + 106, 0x6000 | get_physical_block_exp(&dev->conf));
165 if (dev && dev->conf.discard_granularity) {
166 put_le16(p + 169, 1); /* TRIM support */
169 memcpy(s->identify_data, p, sizeof(s->identify_data));
173 static void ide_atapi_identify(IDEState *s)
177 if (s->identify_set) {
178 memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data));
182 memset(s->io_buffer, 0, 512);
183 p = (uint16_t *)s->io_buffer;
184 /* Removable CDROM, 50us response, 12 byte packets */
185 put_le16(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0));
186 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
187 put_le16(p + 20, 3); /* buffer type */
188 put_le16(p + 21, 512); /* cache size in sectors */
189 put_le16(p + 22, 4); /* ecc bytes */
190 padstr((char *)(p + 23), s->version, 8); /* firmware version */
191 padstr((char *)(p + 27), "QEMU DVD-ROM", 40); /* model */
192 put_le16(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */
194 put_le16(p + 49, 1 << 9 | 1 << 8); /* DMA and LBA supported */
195 put_le16(p + 53, 7); /* words 64-70, 54-58, 88 valid */
196 put_le16(p + 62, 7); /* single word dma0-2 supported */
197 put_le16(p + 63, 7); /* mdma0-2 supported */
199 put_le16(p + 49, 1 << 9); /* LBA supported, no DMA */
200 put_le16(p + 53, 3); /* words 64-70, 54-58 valid */
201 put_le16(p + 63, 0x103); /* DMA modes XXX: may be incorrect */
203 put_le16(p + 64, 3); /* pio3-4 supported */
204 put_le16(p + 65, 0xb4); /* minimum DMA multiword tx cycle time */
205 put_le16(p + 66, 0xb4); /* recommended DMA multiword tx cycle time */
206 put_le16(p + 67, 0x12c); /* minimum PIO cycle time without flow control */
207 put_le16(p + 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */
209 put_le16(p + 71, 30); /* in ns */
210 put_le16(p + 72, 30); /* in ns */
213 put_le16(p + 75, s->ncq_queues - 1);
215 put_le16(p + 76, (1 << 8));
218 put_le16(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */
220 put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
222 memcpy(s->identify_data, p, sizeof(s->identify_data));
226 static void ide_cfata_identify(IDEState *s)
231 p = (uint16_t *) s->identify_data;
235 memset(p, 0, sizeof(s->identify_data));
237 cur_sec = s->cylinders * s->heads * s->sectors;
239 put_le16(p + 0, 0x848a); /* CF Storage Card signature */
240 put_le16(p + 1, s->cylinders); /* Default cylinders */
241 put_le16(p + 3, s->heads); /* Default heads */
242 put_le16(p + 6, s->sectors); /* Default sectors per track */
243 put_le16(p + 7, s->nb_sectors >> 16); /* Sectors per card */
244 put_le16(p + 8, s->nb_sectors); /* Sectors per card */
245 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
246 put_le16(p + 22, 0x0004); /* ECC bytes */
247 padstr((char *) (p + 23), s->version, 8); /* Firmware Revision */
248 padstr((char *) (p + 27), "QEMU MICRODRIVE", 40);/* Model number */
249 #if MAX_MULT_SECTORS > 1
250 put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
252 put_le16(p + 47, 0x0000);
254 put_le16(p + 49, 0x0f00); /* Capabilities */
255 put_le16(p + 51, 0x0002); /* PIO cycle timing mode */
256 put_le16(p + 52, 0x0001); /* DMA cycle timing mode */
257 put_le16(p + 53, 0x0003); /* Translation params valid */
258 put_le16(p + 54, s->cylinders); /* Current cylinders */
259 put_le16(p + 55, s->heads); /* Current heads */
260 put_le16(p + 56, s->sectors); /* Current sectors */
261 put_le16(p + 57, cur_sec); /* Current capacity */
262 put_le16(p + 58, cur_sec >> 16); /* Current capacity */
263 if (s->mult_sectors) /* Multiple sector setting */
264 put_le16(p + 59, 0x100 | s->mult_sectors);
265 put_le16(p + 60, s->nb_sectors); /* Total LBA sectors */
266 put_le16(p + 61, s->nb_sectors >> 16); /* Total LBA sectors */
267 put_le16(p + 63, 0x0203); /* Multiword DMA capability */
268 put_le16(p + 64, 0x0001); /* Flow Control PIO support */
269 put_le16(p + 65, 0x0096); /* Min. Multiword DMA cycle */
270 put_le16(p + 66, 0x0096); /* Rec. Multiword DMA cycle */
271 put_le16(p + 68, 0x00b4); /* Min. PIO cycle time */
272 put_le16(p + 82, 0x400c); /* Command Set supported */
273 put_le16(p + 83, 0x7068); /* Command Set supported */
274 put_le16(p + 84, 0x4000); /* Features supported */
275 put_le16(p + 85, 0x000c); /* Command Set enabled */
276 put_le16(p + 86, 0x7044); /* Command Set enabled */
277 put_le16(p + 87, 0x4000); /* Features enabled */
278 put_le16(p + 91, 0x4060); /* Current APM level */
279 put_le16(p + 129, 0x0002); /* Current features option */
280 put_le16(p + 130, 0x0005); /* Reassigned sectors */
281 put_le16(p + 131, 0x0001); /* Initial power mode */
282 put_le16(p + 132, 0x0000); /* User signature */
283 put_le16(p + 160, 0x8100); /* Power requirement */
284 put_le16(p + 161, 0x8001); /* CF command set */
289 memcpy(s->io_buffer, p, sizeof(s->identify_data));
292 static void ide_set_signature(IDEState *s)
294 s->select &= 0xf0; /* clear head */
298 if (s->drive_kind == IDE_CD) {
310 typedef struct TrimAIOCB {
311 BlockDriverAIOCB common;
316 static void trim_aio_cancel(BlockDriverAIOCB *acb)
318 TrimAIOCB *iocb = container_of(acb, TrimAIOCB, common);
320 qemu_bh_delete(iocb->bh);
322 qemu_aio_release(iocb);
325 static AIOPool trim_aio_pool = {
326 .aiocb_size = sizeof(TrimAIOCB),
327 .cancel = trim_aio_cancel,
330 static void ide_trim_bh_cb(void *opaque)
332 TrimAIOCB *iocb = opaque;
334 iocb->common.cb(iocb->common.opaque, iocb->ret);
336 qemu_bh_delete(iocb->bh);
339 qemu_aio_release(iocb);
342 BlockDriverAIOCB *ide_issue_trim(BlockDriverState *bs,
343 int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
344 BlockDriverCompletionFunc *cb, void *opaque)
349 iocb = qemu_aio_get(&trim_aio_pool, bs, cb, opaque);
350 iocb->bh = qemu_bh_new(ide_trim_bh_cb, iocb);
353 for (j = 0; j < qiov->niov; j++) {
354 uint64_t *buffer = qiov->iov[j].iov_base;
356 for (i = 0; i < qiov->iov[j].iov_len / 8; i++) {
357 /* 6-byte LBA + 2-byte range per entry */
358 uint64_t entry = le64_to_cpu(buffer[i]);
359 uint64_t sector = entry & 0x0000ffffffffffffULL;
360 uint16_t count = entry >> 48;
366 ret = bdrv_discard(bs, sector, count);
373 qemu_bh_schedule(iocb->bh);
375 return &iocb->common;
378 static inline void ide_abort_command(IDEState *s)
380 s->status = READY_STAT | ERR_STAT;
384 /* prepare data transfer and tell what to do after */
385 void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
386 EndTransferFunc *end_transfer_func)
388 s->end_transfer_func = end_transfer_func;
390 s->data_end = buf + size;
391 if (!(s->status & ERR_STAT)) {
392 s->status |= DRQ_STAT;
394 s->bus->dma->ops->start_transfer(s->bus->dma);
397 void ide_transfer_stop(IDEState *s)
399 s->end_transfer_func = ide_transfer_stop;
400 s->data_ptr = s->io_buffer;
401 s->data_end = s->io_buffer;
402 s->status &= ~DRQ_STAT;
405 int64_t ide_get_sector(IDEState *s)
408 if (s->select & 0x40) {
411 sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) |
412 (s->lcyl << 8) | s->sector;
414 sector_num = ((int64_t)s->hob_hcyl << 40) |
415 ((int64_t) s->hob_lcyl << 32) |
416 ((int64_t) s->hob_sector << 24) |
417 ((int64_t) s->hcyl << 16) |
418 ((int64_t) s->lcyl << 8) | s->sector;
421 sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
422 (s->select & 0x0f) * s->sectors + (s->sector - 1);
427 void ide_set_sector(IDEState *s, int64_t sector_num)
430 if (s->select & 0x40) {
432 s->select = (s->select & 0xf0) | (sector_num >> 24);
433 s->hcyl = (sector_num >> 16);
434 s->lcyl = (sector_num >> 8);
435 s->sector = (sector_num);
437 s->sector = sector_num;
438 s->lcyl = sector_num >> 8;
439 s->hcyl = sector_num >> 16;
440 s->hob_sector = sector_num >> 24;
441 s->hob_lcyl = sector_num >> 32;
442 s->hob_hcyl = sector_num >> 40;
445 cyl = sector_num / (s->heads * s->sectors);
446 r = sector_num % (s->heads * s->sectors);
449 s->select = (s->select & 0xf0) | ((r / s->sectors) & 0x0f);
450 s->sector = (r % s->sectors) + 1;
454 static void ide_rw_error(IDEState *s) {
455 ide_abort_command(s);
459 void ide_sector_read(IDEState *s)
464 s->status = READY_STAT | SEEK_STAT;
465 s->error = 0; /* not needed by IDE spec, but needed by Windows */
466 sector_num = ide_get_sector(s);
469 /* no more sector to read from disk */
470 ide_transfer_stop(s);
472 #if defined(DEBUG_IDE)
473 printf("read sector=%" PRId64 "\n", sector_num);
475 if (n > s->req_nb_sectors)
476 n = s->req_nb_sectors;
478 bdrv_acct_start(s->bs, &s->acct, n * BDRV_SECTOR_SIZE, BDRV_ACCT_READ);
479 ret = bdrv_read(s->bs, sector_num, s->io_buffer, n);
480 bdrv_acct_done(s->bs, &s->acct);
482 if (ide_handle_rw_error(s, -ret,
483 BM_STATUS_PIO_RETRY | BM_STATUS_RETRY_READ))
488 ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_read);
490 ide_set_sector(s, sector_num + n);
495 static void dma_buf_commit(IDEState *s, int is_write)
497 qemu_sglist_destroy(&s->sg);
500 void ide_set_inactive(IDEState *s)
502 s->bus->dma->aiocb = NULL;
503 s->bus->dma->ops->set_inactive(s->bus->dma);
506 void ide_dma_error(IDEState *s)
508 ide_transfer_stop(s);
510 s->status = READY_STAT | ERR_STAT;
515 static int ide_handle_rw_error(IDEState *s, int error, int op)
517 int is_read = (op & BM_STATUS_RETRY_READ);
518 BlockErrorAction action = bdrv_get_on_error(s->bs, is_read);
520 if (action == BLOCK_ERR_IGNORE) {
521 bdrv_mon_event(s->bs, BDRV_ACTION_IGNORE, is_read);
525 if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
526 || action == BLOCK_ERR_STOP_ANY) {
527 s->bus->dma->ops->set_unit(s->bus->dma, s->unit);
528 s->bus->error_status = op;
529 bdrv_mon_event(s->bs, BDRV_ACTION_STOP, is_read);
530 vm_stop(VMSTOP_DISKFULL);
532 if (op & BM_STATUS_DMA_RETRY) {
533 dma_buf_commit(s, 0);
538 bdrv_mon_event(s->bs, BDRV_ACTION_REPORT, is_read);
544 void ide_dma_cb(void *opaque, int ret)
546 IDEState *s = opaque;
552 int op = BM_STATUS_DMA_RETRY;
554 if (s->dma_cmd == IDE_DMA_READ)
555 op |= BM_STATUS_RETRY_READ;
556 else if (s->dma_cmd == IDE_DMA_TRIM)
557 op |= BM_STATUS_RETRY_TRIM;
559 if (ide_handle_rw_error(s, -ret, op)) {
564 n = s->io_buffer_size >> 9;
565 sector_num = ide_get_sector(s);
567 dma_buf_commit(s, ide_cmd_is_read(s));
569 ide_set_sector(s, sector_num);
573 /* end of transfer ? */
574 if (s->nsector == 0) {
575 s->status = READY_STAT | SEEK_STAT;
580 /* launch next transfer */
582 s->io_buffer_index = 0;
583 s->io_buffer_size = n * 512;
584 if (s->bus->dma->ops->prepare_buf(s->bus->dma, ide_cmd_is_read(s)) == 0) {
585 /* The PRDs were too short. Reset the Active bit, but don't raise an
591 printf("ide_dma_cb: sector_num=%" PRId64 " n=%d, cmd_cmd=%d\n",
592 sector_num, n, s->dma_cmd);
595 switch (s->dma_cmd) {
597 s->bus->dma->aiocb = dma_bdrv_read(s->bs, &s->sg, sector_num,
601 s->bus->dma->aiocb = dma_bdrv_write(s->bs, &s->sg, sector_num,
605 s->bus->dma->aiocb = dma_bdrv_io(s->bs, &s->sg, sector_num,
606 ide_issue_trim, ide_dma_cb, s, 1);
610 if (!s->bus->dma->aiocb) {
612 goto handle_rw_error;
617 if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) {
618 bdrv_acct_done(s->bs, &s->acct);
623 static void ide_sector_start_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
625 s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT;
626 s->io_buffer_index = 0;
627 s->io_buffer_size = 0;
628 s->dma_cmd = dma_cmd;
632 bdrv_acct_start(s->bs, &s->acct, s->nsector * BDRV_SECTOR_SIZE,
636 bdrv_acct_start(s->bs, &s->acct, s->nsector * BDRV_SECTOR_SIZE,
643 s->bus->dma->ops->start_dma(s->bus->dma, s, ide_dma_cb);
646 static void ide_sector_write_timer_cb(void *opaque)
648 IDEState *s = opaque;
652 void ide_sector_write(IDEState *s)
657 s->status = READY_STAT | SEEK_STAT;
658 sector_num = ide_get_sector(s);
659 #if defined(DEBUG_IDE)
660 printf("write sector=%" PRId64 "\n", sector_num);
663 if (n > s->req_nb_sectors)
664 n = s->req_nb_sectors;
666 bdrv_acct_start(s->bs, &s->acct, n * BDRV_SECTOR_SIZE, BDRV_ACCT_READ);
667 ret = bdrv_write(s->bs, sector_num, s->io_buffer, n);
668 bdrv_acct_done(s->bs, &s->acct);
671 if (ide_handle_rw_error(s, -ret, BM_STATUS_PIO_RETRY))
676 if (s->nsector == 0) {
677 /* no more sectors to write */
678 ide_transfer_stop(s);
681 if (n1 > s->req_nb_sectors)
682 n1 = s->req_nb_sectors;
683 ide_transfer_start(s, s->io_buffer, 512 * n1, ide_sector_write);
685 ide_set_sector(s, sector_num + n);
687 if (win2k_install_hack && ((++s->irq_count % 16) == 0)) {
688 /* It seems there is a bug in the Windows 2000 installer HDD
689 IDE driver which fills the disk with empty logs when the
690 IDE write IRQ comes too early. This hack tries to correct
691 that at the expense of slower write performances. Use this
692 option _only_ to install Windows 2000. You must disable it
694 qemu_mod_timer(s->sector_write_timer,
695 qemu_get_clock_ns(vm_clock) + (get_ticks_per_sec() / 1000));
701 static void ide_flush_cb(void *opaque, int ret)
703 IDEState *s = opaque;
706 /* XXX: What sector number to set here? */
707 if (ide_handle_rw_error(s, -ret, BM_STATUS_RETRY_FLUSH)) {
712 bdrv_acct_done(s->bs, &s->acct);
713 s->status = READY_STAT | SEEK_STAT;
717 void ide_flush_cache(IDEState *s)
719 BlockDriverAIOCB *acb;
726 bdrv_acct_start(s->bs, &s->acct, 0, BDRV_ACCT_FLUSH);
727 acb = bdrv_aio_flush(s->bs, ide_flush_cb, s);
729 ide_flush_cb(s, -EIO);
733 static void ide_cfata_metadata_inquiry(IDEState *s)
738 p = (uint16_t *) s->io_buffer;
740 spd = ((s->mdata_size - 1) >> 9) + 1;
742 put_le16(p + 0, 0x0001); /* Data format revision */
743 put_le16(p + 1, 0x0000); /* Media property: silicon */
744 put_le16(p + 2, s->media_changed); /* Media status */
745 put_le16(p + 3, s->mdata_size & 0xffff); /* Capacity in bytes (low) */
746 put_le16(p + 4, s->mdata_size >> 16); /* Capacity in bytes (high) */
747 put_le16(p + 5, spd & 0xffff); /* Sectors per device (low) */
748 put_le16(p + 6, spd >> 16); /* Sectors per device (high) */
751 static void ide_cfata_metadata_read(IDEState *s)
755 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
756 s->status = ERR_STAT;
761 p = (uint16_t *) s->io_buffer;
764 put_le16(p + 0, s->media_changed); /* Media status */
765 memcpy(p + 1, s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
766 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
767 s->nsector << 9), 0x200 - 2));
770 static void ide_cfata_metadata_write(IDEState *s)
772 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
773 s->status = ERR_STAT;
778 s->media_changed = 0;
780 memcpy(s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
782 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
783 s->nsector << 9), 0x200 - 2));
786 /* called when the inserted state of the media has changed */
787 static void ide_cd_change_cb(void *opaque, bool load)
789 IDEState *s = opaque;
792 s->tray_open = !load;
793 bdrv_get_geometry(s->bs, &nb_sectors);
794 s->nb_sectors = nb_sectors;
797 * First indicate to the guest that a CD has been removed. That's
798 * done on the next command the guest sends us.
800 * Then we set SENSE_UNIT_ATTENTION, by which the guest will
801 * detect a new CD in the drive. See ide_atapi_cmd() for details.
803 s->cdrom_changed = 1;
804 s->events.new_media = true;
808 static void ide_cmd_lba48_transform(IDEState *s, int lba48)
812 /* handle the 'magic' 0 nsector count conversion here. to avoid
813 * fiddling with the rest of the read logic, we just store the
814 * full sector count in ->nsector and ignore ->hob_nsector from now
820 if (!s->nsector && !s->hob_nsector)
824 int hi = s->hob_nsector;
826 s->nsector = (hi << 8) | lo;
831 static void ide_clear_hob(IDEBus *bus)
833 /* any write clears HOB high bit of device control register */
834 bus->ifs[0].select &= ~(1 << 7);
835 bus->ifs[1].select &= ~(1 << 7);
838 void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
840 IDEBus *bus = opaque;
843 printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
848 /* ignore writes to command block while busy with previous command */
849 if (addr != 7 && (idebus_active_if(bus)->status & (BUSY_STAT|DRQ_STAT)))
857 /* NOTE: data is written to the two drives */
858 bus->ifs[0].hob_feature = bus->ifs[0].feature;
859 bus->ifs[1].hob_feature = bus->ifs[1].feature;
860 bus->ifs[0].feature = val;
861 bus->ifs[1].feature = val;
865 bus->ifs[0].hob_nsector = bus->ifs[0].nsector;
866 bus->ifs[1].hob_nsector = bus->ifs[1].nsector;
867 bus->ifs[0].nsector = val;
868 bus->ifs[1].nsector = val;
872 bus->ifs[0].hob_sector = bus->ifs[0].sector;
873 bus->ifs[1].hob_sector = bus->ifs[1].sector;
874 bus->ifs[0].sector = val;
875 bus->ifs[1].sector = val;
879 bus->ifs[0].hob_lcyl = bus->ifs[0].lcyl;
880 bus->ifs[1].hob_lcyl = bus->ifs[1].lcyl;
881 bus->ifs[0].lcyl = val;
882 bus->ifs[1].lcyl = val;
886 bus->ifs[0].hob_hcyl = bus->ifs[0].hcyl;
887 bus->ifs[1].hob_hcyl = bus->ifs[1].hcyl;
888 bus->ifs[0].hcyl = val;
889 bus->ifs[1].hcyl = val;
892 /* FIXME: HOB readback uses bit 7 */
893 bus->ifs[0].select = (val & ~0x10) | 0xa0;
894 bus->ifs[1].select = (val | 0x10) | 0xa0;
896 bus->unit = (val >> 4) & 1;
901 ide_exec_cmd(bus, val);
906 #define HD_OK (1u << IDE_HD)
907 #define CD_OK (1u << IDE_CD)
908 #define CFA_OK (1u << IDE_CFATA)
909 #define HD_CFA_OK (HD_OK | CFA_OK)
910 #define ALL_OK (HD_OK | CD_OK | CFA_OK)
912 /* See ACS-2 T13/2015-D Table B.2 Command codes */
913 static const uint8_t ide_cmd_table[0x100] = {
914 /* NOP not implemented, mandatory for CD */
915 [CFA_REQ_EXT_ERROR_CODE] = CFA_OK,
917 [WIN_DEVICE_RESET] = CD_OK,
918 [WIN_RECAL] = HD_CFA_OK,
920 [WIN_READ_ONCE] = ALL_OK,
921 [WIN_READ_EXT] = HD_CFA_OK,
922 [WIN_READDMA_EXT] = HD_CFA_OK,
923 [WIN_READ_NATIVE_MAX_EXT] = HD_CFA_OK,
924 [WIN_MULTREAD_EXT] = HD_CFA_OK,
925 [WIN_WRITE] = HD_CFA_OK,
926 [WIN_WRITE_ONCE] = HD_CFA_OK,
927 [WIN_WRITE_EXT] = HD_CFA_OK,
928 [WIN_WRITEDMA_EXT] = HD_CFA_OK,
929 [CFA_WRITE_SECT_WO_ERASE] = CFA_OK,
930 [WIN_MULTWRITE_EXT] = HD_CFA_OK,
931 [WIN_WRITE_VERIFY] = HD_CFA_OK,
932 [WIN_VERIFY] = HD_CFA_OK,
933 [WIN_VERIFY_ONCE] = HD_CFA_OK,
934 [WIN_VERIFY_EXT] = HD_CFA_OK,
935 [WIN_SEEK] = HD_CFA_OK,
936 [CFA_TRANSLATE_SECTOR] = CFA_OK,
937 [WIN_DIAGNOSE] = ALL_OK,
938 [WIN_SPECIFY] = HD_CFA_OK,
939 [WIN_STANDBYNOW2] = ALL_OK,
940 [WIN_IDLEIMMEDIATE2] = ALL_OK,
941 [WIN_STANDBY2] = ALL_OK,
942 [WIN_SETIDLE2] = ALL_OK,
943 [WIN_CHECKPOWERMODE2] = ALL_OK,
944 [WIN_SLEEPNOW2] = ALL_OK,
945 [WIN_PACKETCMD] = CD_OK,
946 [WIN_PIDENTIFY] = CD_OK,
947 [WIN_SMART] = HD_CFA_OK,
948 [CFA_ACCESS_METADATA_STORAGE] = CFA_OK,
949 [CFA_ERASE_SECTORS] = CFA_OK,
950 [WIN_MULTREAD] = HD_CFA_OK,
951 [WIN_MULTWRITE] = HD_CFA_OK,
952 [WIN_SETMULT] = HD_CFA_OK,
953 [WIN_READDMA] = HD_CFA_OK,
954 [WIN_READDMA_ONCE] = HD_CFA_OK,
955 [WIN_WRITEDMA] = HD_CFA_OK,
956 [WIN_WRITEDMA_ONCE] = HD_CFA_OK,
957 [CFA_WRITE_MULTI_WO_ERASE] = CFA_OK,
958 [WIN_STANDBYNOW1] = ALL_OK,
959 [WIN_IDLEIMMEDIATE] = ALL_OK,
960 [WIN_STANDBY] = ALL_OK,
961 [WIN_SETIDLE1] = ALL_OK,
962 [WIN_CHECKPOWERMODE1] = ALL_OK,
963 [WIN_SLEEPNOW1] = ALL_OK,
964 [WIN_FLUSH_CACHE] = ALL_OK,
965 [WIN_FLUSH_CACHE_EXT] = HD_CFA_OK,
966 [WIN_IDENTIFY] = ALL_OK,
967 [WIN_SETFEATURES] = ALL_OK,
968 [IBM_SENSE_CONDITION] = CFA_OK,
969 [CFA_WEAR_LEVEL] = CFA_OK,
970 [WIN_READ_NATIVE_MAX] = ALL_OK,
973 static bool ide_cmd_permitted(IDEState *s, uint32_t cmd)
975 return cmd < ARRAY_SIZE(ide_cmd_table)
976 && (ide_cmd_table[cmd] & (1u << s->drive_kind));
979 void ide_exec_cmd(IDEBus *bus, uint32_t val)
985 #if defined(DEBUG_IDE)
986 printf("ide: CMD=%02x\n", val);
988 s = idebus_active_if(bus);
989 /* ignore commands to non existant slave */
990 if (s != bus->ifs && !s->bs)
993 /* Only DEVICE RESET is allowed while BSY or/and DRQ are set */
994 if ((s->status & (BUSY_STAT|DRQ_STAT)) && val != WIN_DEVICE_RESET)
997 if (!ide_cmd_permitted(s, val)) {
1003 switch (s->feature) {
1008 ide_sector_start_dma(s, IDE_DMA_TRIM);
1015 if (s->bs && s->drive_kind != IDE_CD) {
1016 if (s->drive_kind != IDE_CFATA)
1019 ide_cfata_identify(s);
1020 s->status = READY_STAT | SEEK_STAT;
1021 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1023 if (s->drive_kind == IDE_CD) {
1024 ide_set_signature(s);
1026 ide_abort_command(s);
1028 ide_set_irq(s->bus);
1033 s->status = READY_STAT | SEEK_STAT;
1034 ide_set_irq(s->bus);
1037 if (s->drive_kind == IDE_CFATA && s->nsector == 0) {
1038 /* Disable Read and Write Multiple */
1039 s->mult_sectors = 0;
1040 s->status = READY_STAT | SEEK_STAT;
1041 } else if ((s->nsector & 0xff) != 0 &&
1042 ((s->nsector & 0xff) > MAX_MULT_SECTORS ||
1043 (s->nsector & (s->nsector - 1)) != 0)) {
1044 ide_abort_command(s);
1046 s->mult_sectors = s->nsector & 0xff;
1047 s->status = READY_STAT | SEEK_STAT;
1049 ide_set_irq(s->bus);
1051 case WIN_VERIFY_EXT:
1054 case WIN_VERIFY_ONCE:
1055 /* do sector number check ? */
1056 ide_cmd_lba48_transform(s, lba48);
1057 s->status = READY_STAT | SEEK_STAT;
1058 ide_set_irq(s->bus);
1064 if (s->drive_kind == IDE_CD) {
1065 ide_set_signature(s); /* odd, but ATA4 8.27.5.2 requires it */
1068 ide_cmd_lba48_transform(s, lba48);
1069 s->req_nb_sectors = 1;
1075 case WIN_WRITE_ONCE:
1076 case CFA_WRITE_SECT_WO_ERASE:
1077 case WIN_WRITE_VERIFY:
1078 ide_cmd_lba48_transform(s, lba48);
1080 s->status = SEEK_STAT | READY_STAT;
1081 s->req_nb_sectors = 1;
1082 ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
1083 s->media_changed = 1;
1085 case WIN_MULTREAD_EXT:
1088 if (!s->mult_sectors)
1090 ide_cmd_lba48_transform(s, lba48);
1091 s->req_nb_sectors = s->mult_sectors;
1094 case WIN_MULTWRITE_EXT:
1097 case CFA_WRITE_MULTI_WO_ERASE:
1098 if (!s->mult_sectors)
1100 ide_cmd_lba48_transform(s, lba48);
1102 s->status = SEEK_STAT | READY_STAT;
1103 s->req_nb_sectors = s->mult_sectors;
1105 if (n > s->req_nb_sectors)
1106 n = s->req_nb_sectors;
1107 ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
1108 s->media_changed = 1;
1110 case WIN_READDMA_EXT:
1113 case WIN_READDMA_ONCE:
1116 ide_cmd_lba48_transform(s, lba48);
1117 ide_sector_start_dma(s, IDE_DMA_READ);
1119 case WIN_WRITEDMA_EXT:
1122 case WIN_WRITEDMA_ONCE:
1125 ide_cmd_lba48_transform(s, lba48);
1126 ide_sector_start_dma(s, IDE_DMA_WRITE);
1127 s->media_changed = 1;
1129 case WIN_READ_NATIVE_MAX_EXT:
1131 case WIN_READ_NATIVE_MAX:
1132 ide_cmd_lba48_transform(s, lba48);
1133 ide_set_sector(s, s->nb_sectors - 1);
1134 s->status = READY_STAT | SEEK_STAT;
1135 ide_set_irq(s->bus);
1137 case WIN_CHECKPOWERMODE1:
1138 case WIN_CHECKPOWERMODE2:
1140 s->nsector = 0xff; /* device active or idle */
1141 s->status = READY_STAT | SEEK_STAT;
1142 ide_set_irq(s->bus);
1144 case WIN_SETFEATURES:
1147 /* XXX: valid for CDROM ? */
1148 switch(s->feature) {
1149 case 0xcc: /* reverting to power-on defaults enable */
1150 case 0x66: /* reverting to power-on defaults disable */
1151 case 0x02: /* write cache enable */
1152 case 0x82: /* write cache disable */
1153 case 0xaa: /* read look-ahead enable */
1154 case 0x55: /* read look-ahead disable */
1155 case 0x05: /* set advanced power management mode */
1156 case 0x85: /* disable advanced power management mode */
1157 case 0x69: /* NOP */
1158 case 0x67: /* NOP */
1159 case 0x96: /* NOP */
1160 case 0x9a: /* NOP */
1161 case 0x42: /* enable Automatic Acoustic Mode */
1162 case 0xc2: /* disable Automatic Acoustic Mode */
1163 s->status = READY_STAT | SEEK_STAT;
1164 ide_set_irq(s->bus);
1166 case 0x03: { /* set transfer mode */
1167 uint8_t val = s->nsector & 0x07;
1168 uint16_t *identify_data = (uint16_t *)s->identify_data;
1170 switch (s->nsector >> 3) {
1171 case 0x00: /* pio default */
1172 case 0x01: /* pio mode */
1173 put_le16(identify_data + 62,0x07);
1174 put_le16(identify_data + 63,0x07);
1175 put_le16(identify_data + 88,0x3f);
1177 case 0x02: /* sigle word dma mode*/
1178 put_le16(identify_data + 62,0x07 | (1 << (val + 8)));
1179 put_le16(identify_data + 63,0x07);
1180 put_le16(identify_data + 88,0x3f);
1182 case 0x04: /* mdma mode */
1183 put_le16(identify_data + 62,0x07);
1184 put_le16(identify_data + 63,0x07 | (1 << (val + 8)));
1185 put_le16(identify_data + 88,0x3f);
1187 case 0x08: /* udma mode */
1188 put_le16(identify_data + 62,0x07);
1189 put_le16(identify_data + 63,0x07);
1190 put_le16(identify_data + 88,0x3f | (1 << (val + 8)));
1195 s->status = READY_STAT | SEEK_STAT;
1196 ide_set_irq(s->bus);
1203 case WIN_FLUSH_CACHE:
1204 case WIN_FLUSH_CACHE_EXT:
1209 case WIN_STANDBYNOW1:
1210 case WIN_STANDBYNOW2:
1211 case WIN_IDLEIMMEDIATE:
1212 case WIN_IDLEIMMEDIATE2:
1217 s->status = READY_STAT;
1218 ide_set_irq(s->bus);
1221 /* XXX: Check that seek is within bounds */
1222 s->status = READY_STAT | SEEK_STAT;
1223 ide_set_irq(s->bus);
1225 /* ATAPI commands */
1227 ide_atapi_identify(s);
1228 s->status = READY_STAT | SEEK_STAT;
1229 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1230 ide_set_irq(s->bus);
1233 ide_set_signature(s);
1234 if (s->drive_kind == IDE_CD)
1235 s->status = 0; /* ATAPI spec (v6) section 9.10 defines packet
1236 * devices to return a clear status register
1237 * with READY_STAT *not* set. */
1239 s->status = READY_STAT | SEEK_STAT;
1240 s->error = 0x01; /* Device 0 passed, Device 1 passed or not
1243 ide_set_irq(s->bus);
1245 case WIN_DEVICE_RESET:
1246 ide_set_signature(s);
1247 s->status = 0x00; /* NOTE: READY is _not_ set */
1251 /* overlapping commands not supported */
1252 if (s->feature & 0x02)
1254 s->status = READY_STAT | SEEK_STAT;
1255 s->atapi_dma = s->feature & 1;
1257 ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
1260 /* CF-ATA commands */
1261 case CFA_REQ_EXT_ERROR_CODE:
1262 s->error = 0x09; /* miscellaneous error */
1263 s->status = READY_STAT | SEEK_STAT;
1264 ide_set_irq(s->bus);
1266 case CFA_ERASE_SECTORS:
1267 case CFA_WEAR_LEVEL:
1268 if (val == CFA_WEAR_LEVEL)
1270 if (val == CFA_ERASE_SECTORS)
1271 s->media_changed = 1;
1273 s->status = READY_STAT | SEEK_STAT;
1274 ide_set_irq(s->bus);
1276 case CFA_TRANSLATE_SECTOR:
1278 s->status = READY_STAT | SEEK_STAT;
1279 memset(s->io_buffer, 0, 0x200);
1280 s->io_buffer[0x00] = s->hcyl; /* Cyl MSB */
1281 s->io_buffer[0x01] = s->lcyl; /* Cyl LSB */
1282 s->io_buffer[0x02] = s->select; /* Head */
1283 s->io_buffer[0x03] = s->sector; /* Sector */
1284 s->io_buffer[0x04] = ide_get_sector(s) >> 16; /* LBA MSB */
1285 s->io_buffer[0x05] = ide_get_sector(s) >> 8; /* LBA */
1286 s->io_buffer[0x06] = ide_get_sector(s) >> 0; /* LBA LSB */
1287 s->io_buffer[0x13] = 0x00; /* Erase flag */
1288 s->io_buffer[0x18] = 0x00; /* Hot count */
1289 s->io_buffer[0x19] = 0x00; /* Hot count */
1290 s->io_buffer[0x1a] = 0x01; /* Hot count */
1291 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1292 ide_set_irq(s->bus);
1294 case CFA_ACCESS_METADATA_STORAGE:
1295 switch (s->feature) {
1296 case 0x02: /* Inquiry Metadata Storage */
1297 ide_cfata_metadata_inquiry(s);
1299 case 0x03: /* Read Metadata Storage */
1300 ide_cfata_metadata_read(s);
1302 case 0x04: /* Write Metadata Storage */
1303 ide_cfata_metadata_write(s);
1308 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1309 s->status = 0x00; /* NOTE: READY is _not_ set */
1310 ide_set_irq(s->bus);
1312 case IBM_SENSE_CONDITION:
1313 switch (s->feature) {
1314 case 0x01: /* sense temperature in device */
1315 s->nsector = 0x50; /* +20 C */
1320 s->status = READY_STAT | SEEK_STAT;
1321 ide_set_irq(s->bus);
1325 if (s->hcyl != 0xc2 || s->lcyl != 0x4f)
1327 if (!s->smart_enabled && s->feature != SMART_ENABLE)
1329 switch (s->feature) {
1331 s->smart_enabled = 0;
1332 s->status = READY_STAT | SEEK_STAT;
1333 ide_set_irq(s->bus);
1336 s->smart_enabled = 1;
1337 s->status = READY_STAT | SEEK_STAT;
1338 ide_set_irq(s->bus);
1340 case SMART_ATTR_AUTOSAVE:
1341 switch (s->sector) {
1343 s->smart_autosave = 0;
1346 s->smart_autosave = 1;
1351 s->status = READY_STAT | SEEK_STAT;
1352 ide_set_irq(s->bus);
1355 if (!s->smart_errors) {
1362 s->status = READY_STAT | SEEK_STAT;
1363 ide_set_irq(s->bus);
1365 case SMART_READ_THRESH:
1366 memset(s->io_buffer, 0, 0x200);
1367 s->io_buffer[0] = 0x01; /* smart struct version */
1368 for (n=0; n<30; n++) {
1369 if (smart_attributes[n][0] == 0)
1371 s->io_buffer[2+0+(n*12)] = smart_attributes[n][0];
1372 s->io_buffer[2+1+(n*12)] = smart_attributes[n][11];
1374 for (n=0; n<511; n++) /* checksum */
1375 s->io_buffer[511] += s->io_buffer[n];
1376 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1377 s->status = READY_STAT | SEEK_STAT;
1378 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1379 ide_set_irq(s->bus);
1381 case SMART_READ_DATA:
1382 memset(s->io_buffer, 0, 0x200);
1383 s->io_buffer[0] = 0x01; /* smart struct version */
1384 for (n=0; n<30; n++) {
1385 if (smart_attributes[n][0] == 0) {
1389 for(i = 0; i < 11; i++) {
1390 s->io_buffer[2+i+(n*12)] = smart_attributes[n][i];
1393 s->io_buffer[362] = 0x02 | (s->smart_autosave?0x80:0x00);
1394 if (s->smart_selftest_count == 0) {
1395 s->io_buffer[363] = 0;
1398 s->smart_selftest_data[3 +
1399 (s->smart_selftest_count - 1) *
1402 s->io_buffer[364] = 0x20;
1403 s->io_buffer[365] = 0x01;
1404 /* offline data collection capacity: execute + self-test*/
1405 s->io_buffer[367] = (1<<4 | 1<<3 | 1);
1406 s->io_buffer[368] = 0x03; /* smart capability (1) */
1407 s->io_buffer[369] = 0x00; /* smart capability (2) */
1408 s->io_buffer[370] = 0x01; /* error logging supported */
1409 s->io_buffer[372] = 0x02; /* minutes for poll short test */
1410 s->io_buffer[373] = 0x36; /* minutes for poll ext test */
1411 s->io_buffer[374] = 0x01; /* minutes for poll conveyance */
1413 for (n=0; n<511; n++)
1414 s->io_buffer[511] += s->io_buffer[n];
1415 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1416 s->status = READY_STAT | SEEK_STAT;
1417 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1418 ide_set_irq(s->bus);
1420 case SMART_READ_LOG:
1421 switch (s->sector) {
1422 case 0x01: /* summary smart error log */
1423 memset(s->io_buffer, 0, 0x200);
1424 s->io_buffer[0] = 0x01;
1425 s->io_buffer[1] = 0x00; /* no error entries */
1426 s->io_buffer[452] = s->smart_errors & 0xff;
1427 s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8;
1429 for (n=0; n<511; n++)
1430 s->io_buffer[511] += s->io_buffer[n];
1431 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1433 case 0x06: /* smart self test log */
1434 memset(s->io_buffer, 0, 0x200);
1435 s->io_buffer[0] = 0x01;
1436 if (s->smart_selftest_count == 0) {
1437 s->io_buffer[508] = 0;
1439 s->io_buffer[508] = s->smart_selftest_count;
1440 for (n=2; n<506; n++)
1441 s->io_buffer[n] = s->smart_selftest_data[n];
1443 for (n=0; n<511; n++)
1444 s->io_buffer[511] += s->io_buffer[n];
1445 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1450 s->status = READY_STAT | SEEK_STAT;
1451 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1452 ide_set_irq(s->bus);
1454 case SMART_EXECUTE_OFFLINE:
1455 switch (s->sector) {
1456 case 0: /* off-line routine */
1457 case 1: /* short self test */
1458 case 2: /* extended self test */
1459 s->smart_selftest_count++;
1460 if(s->smart_selftest_count > 21)
1461 s->smart_selftest_count = 0;
1462 n = 2 + (s->smart_selftest_count - 1) * 24;
1463 s->smart_selftest_data[n] = s->sector;
1464 s->smart_selftest_data[n+1] = 0x00; /* OK and finished */
1465 s->smart_selftest_data[n+2] = 0x34; /* hour count lsb */
1466 s->smart_selftest_data[n+3] = 0x12; /* hour count msb */
1467 s->status = READY_STAT | SEEK_STAT;
1468 ide_set_irq(s->bus);
1479 /* should not be reachable */
1481 ide_abort_command(s);
1482 ide_set_irq(s->bus);
1487 uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
1489 IDEBus *bus = opaque;
1490 IDEState *s = idebus_active_if(bus);
1495 /* FIXME: HOB readback uses bit 7, but it's always set right now */
1496 //hob = s->select & (1 << 7);
1503 if ((!bus->ifs[0].bs && !bus->ifs[1].bs) ||
1504 (s != bus->ifs && !s->bs))
1509 ret = s->hob_feature;
1512 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1515 ret = s->nsector & 0xff;
1517 ret = s->hob_nsector;
1520 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1525 ret = s->hob_sector;
1528 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1536 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1544 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1551 if ((!bus->ifs[0].bs && !bus->ifs[1].bs) ||
1552 (s != bus->ifs && !s->bs))
1556 qemu_irq_lower(bus->irq);
1560 printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
1565 uint32_t ide_status_read(void *opaque, uint32_t addr)
1567 IDEBus *bus = opaque;
1568 IDEState *s = idebus_active_if(bus);
1571 if ((!bus->ifs[0].bs && !bus->ifs[1].bs) ||
1572 (s != bus->ifs && !s->bs))
1577 printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
1582 void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val)
1584 IDEBus *bus = opaque;
1589 printf("ide: write control addr=0x%x val=%02x\n", addr, val);
1591 /* common for both drives */
1592 if (!(bus->cmd & IDE_CMD_RESET) &&
1593 (val & IDE_CMD_RESET)) {
1594 /* reset low to high */
1595 for(i = 0;i < 2; i++) {
1597 s->status = BUSY_STAT | SEEK_STAT;
1600 } else if ((bus->cmd & IDE_CMD_RESET) &&
1601 !(val & IDE_CMD_RESET)) {
1603 for(i = 0;i < 2; i++) {
1605 if (s->drive_kind == IDE_CD)
1606 s->status = 0x00; /* NOTE: READY is _not_ set */
1608 s->status = READY_STAT | SEEK_STAT;
1609 ide_set_signature(s);
1617 * Returns true if the running PIO transfer is a PIO out (i.e. data is
1618 * transferred from the device to the guest), false if it's a PIO in
1620 static bool ide_is_pio_out(IDEState *s)
1622 if (s->end_transfer_func == ide_sector_write ||
1623 s->end_transfer_func == ide_atapi_cmd) {
1625 } else if (s->end_transfer_func == ide_sector_read ||
1626 s->end_transfer_func == ide_transfer_stop ||
1627 s->end_transfer_func == ide_atapi_cmd_reply_end ||
1628 s->end_transfer_func == ide_dummy_transfer_stop) {
1635 void ide_data_writew(void *opaque, uint32_t addr, uint32_t val)
1637 IDEBus *bus = opaque;
1638 IDEState *s = idebus_active_if(bus);
1641 /* PIO data access allowed only when DRQ bit is set. The result of a write
1642 * during PIO out is indeterminate, just ignore it. */
1643 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
1648 *(uint16_t *)p = le16_to_cpu(val);
1651 if (p >= s->data_end)
1652 s->end_transfer_func(s);
1655 uint32_t ide_data_readw(void *opaque, uint32_t addr)
1657 IDEBus *bus = opaque;
1658 IDEState *s = idebus_active_if(bus);
1662 /* PIO data access allowed only when DRQ bit is set. The result of a read
1663 * during PIO in is indeterminate, return 0 and don't move forward. */
1664 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
1669 ret = cpu_to_le16(*(uint16_t *)p);
1672 if (p >= s->data_end)
1673 s->end_transfer_func(s);
1677 void ide_data_writel(void *opaque, uint32_t addr, uint32_t val)
1679 IDEBus *bus = opaque;
1680 IDEState *s = idebus_active_if(bus);
1683 /* PIO data access allowed only when DRQ bit is set. The result of a write
1684 * during PIO out is indeterminate, just ignore it. */
1685 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
1690 *(uint32_t *)p = le32_to_cpu(val);
1693 if (p >= s->data_end)
1694 s->end_transfer_func(s);
1697 uint32_t ide_data_readl(void *opaque, uint32_t addr)
1699 IDEBus *bus = opaque;
1700 IDEState *s = idebus_active_if(bus);
1704 /* PIO data access allowed only when DRQ bit is set. The result of a read
1705 * during PIO in is indeterminate, return 0 and don't move forward. */
1706 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
1711 ret = cpu_to_le32(*(uint32_t *)p);
1714 if (p >= s->data_end)
1715 s->end_transfer_func(s);
1719 static void ide_dummy_transfer_stop(IDEState *s)
1721 s->data_ptr = s->io_buffer;
1722 s->data_end = s->io_buffer;
1723 s->io_buffer[0] = 0xff;
1724 s->io_buffer[1] = 0xff;
1725 s->io_buffer[2] = 0xff;
1726 s->io_buffer[3] = 0xff;
1729 static void ide_reset(IDEState *s)
1732 printf("ide: reset\n");
1734 if (s->drive_kind == IDE_CFATA)
1735 s->mult_sectors = 0;
1737 s->mult_sectors = MAX_MULT_SECTORS;
1754 s->status = READY_STAT | SEEK_STAT;
1758 /* ATAPI specific */
1761 s->cdrom_changed = 0;
1762 s->packet_transfer_size = 0;
1763 s->elementary_transfer_size = 0;
1764 s->io_buffer_index = 0;
1765 s->cd_sector_size = 0;
1768 s->io_buffer_size = 0;
1769 s->req_nb_sectors = 0;
1771 ide_set_signature(s);
1772 /* init the transfer handler so that 0xffff is returned on data
1774 s->end_transfer_func = ide_dummy_transfer_stop;
1775 ide_dummy_transfer_stop(s);
1776 s->media_changed = 0;
1779 void ide_bus_reset(IDEBus *bus)
1783 ide_reset(&bus->ifs[0]);
1784 ide_reset(&bus->ifs[1]);
1787 /* pending async DMA */
1788 if (bus->dma->aiocb) {
1790 printf("aio_cancel\n");
1792 bdrv_aio_cancel(bus->dma->aiocb);
1793 bus->dma->aiocb = NULL;
1796 /* reset dma provider too */
1797 bus->dma->ops->reset(bus->dma);
1800 static bool ide_cd_is_tray_open(void *opaque)
1802 return ((IDEState *)opaque)->tray_open;
1805 static bool ide_cd_is_medium_locked(void *opaque)
1807 return ((IDEState *)opaque)->tray_locked;
1810 static const BlockDevOps ide_cd_block_ops = {
1811 .change_media_cb = ide_cd_change_cb,
1812 .is_tray_open = ide_cd_is_tray_open,
1813 .is_medium_locked = ide_cd_is_medium_locked,
1816 int ide_init_drive(IDEState *s, BlockDriverState *bs, IDEDriveKind kind,
1817 const char *version, const char *serial)
1819 int cylinders, heads, secs;
1820 uint64_t nb_sectors;
1823 s->drive_kind = kind;
1825 bdrv_get_geometry(bs, &nb_sectors);
1826 bdrv_guess_geometry(bs, &cylinders, &heads, &secs);
1827 if (cylinders < 1 || cylinders > 16383) {
1828 error_report("cyls must be between 1 and 16383");
1831 if (heads < 1 || heads > 16) {
1832 error_report("heads must be between 1 and 16");
1835 if (secs < 1 || secs > 63) {
1836 error_report("secs must be between 1 and 63");
1839 s->cylinders = cylinders;
1842 s->nb_sectors = nb_sectors;
1843 /* The SMART values should be preserved across power cycles
1845 s->smart_enabled = 1;
1846 s->smart_autosave = 1;
1847 s->smart_errors = 0;
1848 s->smart_selftest_count = 0;
1849 if (kind == IDE_CD) {
1850 bdrv_set_dev_ops(bs, &ide_cd_block_ops, s);
1851 bdrv_set_buffer_alignment(bs, 2048);
1853 if (!bdrv_is_inserted(s->bs)) {
1854 error_report("Device needs media, but drive is empty");
1857 if (bdrv_is_read_only(bs)) {
1858 error_report("Can't use a read-only drive");
1863 strncpy(s->drive_serial_str, serial, sizeof(s->drive_serial_str));
1865 snprintf(s->drive_serial_str, sizeof(s->drive_serial_str),
1866 "QM%05d", s->drive_serial);
1869 pstrcpy(s->version, sizeof(s->version), version);
1871 pstrcpy(s->version, sizeof(s->version), QEMU_VERSION);
1878 static void ide_init1(IDEBus *bus, int unit)
1880 static int drive_serial = 1;
1881 IDEState *s = &bus->ifs[unit];
1885 s->drive_serial = drive_serial++;
1886 /* we need at least 2k alignment for accessing CDROMs using O_DIRECT */
1887 s->io_buffer_total_len = IDE_DMA_BUF_SECTORS*512 + 4;
1888 s->io_buffer = qemu_memalign(2048, s->io_buffer_total_len);
1889 memset(s->io_buffer, 0, s->io_buffer_total_len);
1891 s->smart_selftest_data = qemu_blockalign(s->bs, 512);
1892 memset(s->smart_selftest_data, 0, 512);
1894 s->sector_write_timer = qemu_new_timer_ns(vm_clock,
1895 ide_sector_write_timer_cb, s);
1898 static void ide_nop_start(IDEDMA *dma, IDEState *s,
1899 BlockDriverCompletionFunc *cb)
1903 static int ide_nop(IDEDMA *dma)
1908 static int ide_nop_int(IDEDMA *dma, int x)
1913 static void ide_nop_restart(void *opaque, int x, int y)
1917 static const IDEDMAOps ide_dma_nop_ops = {
1918 .start_dma = ide_nop_start,
1919 .start_transfer = ide_nop,
1920 .prepare_buf = ide_nop_int,
1921 .rw_buf = ide_nop_int,
1922 .set_unit = ide_nop_int,
1923 .add_status = ide_nop_int,
1924 .set_inactive = ide_nop,
1925 .restart_cb = ide_nop_restart,
1929 static IDEDMA ide_dma_nop = {
1930 .ops = &ide_dma_nop_ops,
1934 void ide_init2(IDEBus *bus, qemu_irq irq)
1938 for(i = 0; i < 2; i++) {
1940 ide_reset(&bus->ifs[i]);
1943 bus->dma = &ide_dma_nop;
1946 /* TODO convert users to qdev and remove */
1947 void ide_init2_with_non_qdev_drives(IDEBus *bus, DriveInfo *hd0,
1948 DriveInfo *hd1, qemu_irq irq)
1953 for(i = 0; i < 2; i++) {
1954 dinfo = i == 0 ? hd0 : hd1;
1957 if (ide_init_drive(&bus->ifs[i], dinfo->bdrv,
1958 dinfo->media_cd ? IDE_CD : IDE_HD, NULL,
1959 *dinfo->serial ? dinfo->serial : NULL) < 0) {
1960 error_report("Can't set up IDE drive %s", dinfo->id);
1963 bdrv_attach_dev_nofail(dinfo->bdrv, &bus->ifs[i]);
1965 ide_reset(&bus->ifs[i]);
1969 bus->dma = &ide_dma_nop;
1972 void ide_init_ioport(IDEBus *bus, int iobase, int iobase2)
1974 register_ioport_write(iobase, 8, 1, ide_ioport_write, bus);
1975 register_ioport_read(iobase, 8, 1, ide_ioport_read, bus);
1977 register_ioport_read(iobase2, 1, 1, ide_status_read, bus);
1978 register_ioport_write(iobase2, 1, 1, ide_cmd_write, bus);
1982 register_ioport_write(iobase, 2, 2, ide_data_writew, bus);
1983 register_ioport_read(iobase, 2, 2, ide_data_readw, bus);
1984 register_ioport_write(iobase, 4, 4, ide_data_writel, bus);
1985 register_ioport_read(iobase, 4, 4, ide_data_readl, bus);
1988 static bool is_identify_set(void *opaque, int version_id)
1990 IDEState *s = opaque;
1992 return s->identify_set != 0;
1995 static EndTransferFunc* transfer_end_table[] = {
1999 ide_atapi_cmd_reply_end,
2001 ide_dummy_transfer_stop,
2004 static int transfer_end_table_idx(EndTransferFunc *fn)
2008 for (i = 0; i < ARRAY_SIZE(transfer_end_table); i++)
2009 if (transfer_end_table[i] == fn)
2015 static int ide_drive_post_load(void *opaque, int version_id)
2017 IDEState *s = opaque;
2019 if (version_id < 3) {
2020 if (s->sense_key == SENSE_UNIT_ATTENTION &&
2021 s->asc == ASC_MEDIUM_MAY_HAVE_CHANGED) {
2022 s->cdrom_changed = 1;
2028 static int ide_drive_pio_post_load(void *opaque, int version_id)
2030 IDEState *s = opaque;
2032 if (s->end_transfer_fn_idx > ARRAY_SIZE(transfer_end_table)) {
2035 s->end_transfer_func = transfer_end_table[s->end_transfer_fn_idx];
2036 s->data_ptr = s->io_buffer + s->cur_io_buffer_offset;
2037 s->data_end = s->data_ptr + s->cur_io_buffer_len;
2042 static void ide_drive_pio_pre_save(void *opaque)
2044 IDEState *s = opaque;
2047 s->cur_io_buffer_offset = s->data_ptr - s->io_buffer;
2048 s->cur_io_buffer_len = s->data_end - s->data_ptr;
2050 idx = transfer_end_table_idx(s->end_transfer_func);
2052 fprintf(stderr, "%s: invalid end_transfer_func for DRQ_STAT\n",
2054 s->end_transfer_fn_idx = 2;
2056 s->end_transfer_fn_idx = idx;
2060 static bool ide_drive_pio_state_needed(void *opaque)
2062 IDEState *s = opaque;
2064 return ((s->status & DRQ_STAT) != 0)
2065 || (s->bus->error_status & BM_STATUS_PIO_RETRY);
2068 static int ide_tray_state_post_load(void *opaque, int version_id)
2070 IDEState *s = opaque;
2072 bdrv_eject(s->bs, s->tray_open);
2073 bdrv_lock_medium(s->bs, s->tray_locked);
2077 static bool ide_tray_state_needed(void *opaque)
2079 IDEState *s = opaque;
2081 return s->tray_open || s->tray_locked;
2084 static bool ide_atapi_gesn_needed(void *opaque)
2086 IDEState *s = opaque;
2088 return s->events.new_media || s->events.eject_request;
2091 static bool ide_error_needed(void *opaque)
2093 IDEBus *bus = opaque;
2095 return (bus->error_status != 0);
2098 /* Fields for GET_EVENT_STATUS_NOTIFICATION ATAPI command */
2099 static const VMStateDescription vmstate_ide_atapi_gesn_state = {
2100 .name ="ide_drive/atapi/gesn_state",
2102 .minimum_version_id = 1,
2103 .minimum_version_id_old = 1,
2104 .fields = (VMStateField []) {
2105 VMSTATE_BOOL(events.new_media, IDEState),
2106 VMSTATE_BOOL(events.eject_request, IDEState),
2107 VMSTATE_END_OF_LIST()
2111 static const VMStateDescription vmstate_ide_tray_state = {
2112 .name = "ide_drive/tray_state",
2114 .minimum_version_id = 1,
2115 .minimum_version_id_old = 1,
2116 .post_load = ide_tray_state_post_load,
2117 .fields = (VMStateField[]) {
2118 VMSTATE_BOOL(tray_open, IDEState),
2119 VMSTATE_BOOL(tray_locked, IDEState),
2120 VMSTATE_END_OF_LIST()
2124 static const VMStateDescription vmstate_ide_drive_pio_state = {
2125 .name = "ide_drive/pio_state",
2127 .minimum_version_id = 1,
2128 .minimum_version_id_old = 1,
2129 .pre_save = ide_drive_pio_pre_save,
2130 .post_load = ide_drive_pio_post_load,
2131 .fields = (VMStateField []) {
2132 VMSTATE_INT32(req_nb_sectors, IDEState),
2133 VMSTATE_VARRAY_INT32(io_buffer, IDEState, io_buffer_total_len, 1,
2134 vmstate_info_uint8, uint8_t),
2135 VMSTATE_INT32(cur_io_buffer_offset, IDEState),
2136 VMSTATE_INT32(cur_io_buffer_len, IDEState),
2137 VMSTATE_UINT8(end_transfer_fn_idx, IDEState),
2138 VMSTATE_INT32(elementary_transfer_size, IDEState),
2139 VMSTATE_INT32(packet_transfer_size, IDEState),
2140 VMSTATE_END_OF_LIST()
2144 const VMStateDescription vmstate_ide_drive = {
2145 .name = "ide_drive",
2147 .minimum_version_id = 0,
2148 .minimum_version_id_old = 0,
2149 .post_load = ide_drive_post_load,
2150 .fields = (VMStateField []) {
2151 VMSTATE_INT32(mult_sectors, IDEState),
2152 VMSTATE_INT32(identify_set, IDEState),
2153 VMSTATE_BUFFER_TEST(identify_data, IDEState, is_identify_set),
2154 VMSTATE_UINT8(feature, IDEState),
2155 VMSTATE_UINT8(error, IDEState),
2156 VMSTATE_UINT32(nsector, IDEState),
2157 VMSTATE_UINT8(sector, IDEState),
2158 VMSTATE_UINT8(lcyl, IDEState),
2159 VMSTATE_UINT8(hcyl, IDEState),
2160 VMSTATE_UINT8(hob_feature, IDEState),
2161 VMSTATE_UINT8(hob_sector, IDEState),
2162 VMSTATE_UINT8(hob_nsector, IDEState),
2163 VMSTATE_UINT8(hob_lcyl, IDEState),
2164 VMSTATE_UINT8(hob_hcyl, IDEState),
2165 VMSTATE_UINT8(select, IDEState),
2166 VMSTATE_UINT8(status, IDEState),
2167 VMSTATE_UINT8(lba48, IDEState),
2168 VMSTATE_UINT8(sense_key, IDEState),
2169 VMSTATE_UINT8(asc, IDEState),
2170 VMSTATE_UINT8_V(cdrom_changed, IDEState, 3),
2171 VMSTATE_END_OF_LIST()
2173 .subsections = (VMStateSubsection []) {
2175 .vmsd = &vmstate_ide_drive_pio_state,
2176 .needed = ide_drive_pio_state_needed,
2178 .vmsd = &vmstate_ide_tray_state,
2179 .needed = ide_tray_state_needed,
2181 .vmsd = &vmstate_ide_atapi_gesn_state,
2182 .needed = ide_atapi_gesn_needed,
2189 static const VMStateDescription vmstate_ide_error_status = {
2190 .name ="ide_bus/error",
2192 .minimum_version_id = 1,
2193 .minimum_version_id_old = 1,
2194 .fields = (VMStateField []) {
2195 VMSTATE_INT32(error_status, IDEBus),
2196 VMSTATE_END_OF_LIST()
2200 const VMStateDescription vmstate_ide_bus = {
2203 .minimum_version_id = 1,
2204 .minimum_version_id_old = 1,
2205 .fields = (VMStateField []) {
2206 VMSTATE_UINT8(cmd, IDEBus),
2207 VMSTATE_UINT8(unit, IDEBus),
2208 VMSTATE_END_OF_LIST()
2210 .subsections = (VMStateSubsection []) {
2212 .vmsd = &vmstate_ide_error_status,
2213 .needed = ide_error_needed,
2220 void ide_drive_get(DriveInfo **hd, int max_bus)
2224 if (drive_get_max_bus(IF_IDE) >= max_bus) {
2225 fprintf(stderr, "qemu: too many IDE bus: %d\n", max_bus);
2229 for(i = 0; i < max_bus * MAX_IDE_DEVS; i++) {
2230 hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);