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2988 lines
85 KiB
C
2988 lines
85 KiB
C
/*
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* QEMU IDE disk and CD/DVD-ROM Emulator
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*
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* Copyright (c) 2003 Fabrice Bellard
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* Copyright (c) 2006 Openedhand Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "hw/isa/isa.h"
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#include "migration/vmstate.h"
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#include "qemu/error-report.h"
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#include "qemu/main-loop.h"
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#include "qemu/timer.h"
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#include "qemu/hw-version.h"
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#include "qemu/memalign.h"
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#include "sysemu/sysemu.h"
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#include "sysemu/blockdev.h"
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#include "sysemu/dma.h"
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#include "hw/block/block.h"
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#include "sysemu/block-backend.h"
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#include "qapi/error.h"
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#include "qemu/cutils.h"
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#include "sysemu/replay.h"
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#include "sysemu/runstate.h"
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#include "hw/ide/internal.h"
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#include "trace.h"
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/* These values were based on a Seagate ST3500418AS but have been modified
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to make more sense in QEMU */
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static const int smart_attributes[][12] = {
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/* id, flags, hflags, val, wrst, raw (6 bytes), threshold */
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/* raw read error rate*/
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{ 0x01, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06},
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/* spin up */
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{ 0x03, 0x03, 0x00, 0x64, 0x64, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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/* start stop count */
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{ 0x04, 0x02, 0x00, 0x64, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14},
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/* remapped sectors */
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{ 0x05, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24},
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/* power on hours */
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{ 0x09, 0x03, 0x00, 0x64, 0x64, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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/* power cycle count */
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{ 0x0c, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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/* airflow-temperature-celsius */
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{ 190, 0x03, 0x00, 0x45, 0x45, 0x1f, 0x00, 0x1f, 0x1f, 0x00, 0x00, 0x32},
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};
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const char *IDE_DMA_CMD_lookup[IDE_DMA__COUNT] = {
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[IDE_DMA_READ] = "DMA READ",
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[IDE_DMA_WRITE] = "DMA WRITE",
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[IDE_DMA_TRIM] = "DMA TRIM",
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[IDE_DMA_ATAPI] = "DMA ATAPI"
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};
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static const char *IDE_DMA_CMD_str(enum ide_dma_cmd enval)
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{
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if ((unsigned)enval < IDE_DMA__COUNT) {
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return IDE_DMA_CMD_lookup[enval];
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}
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return "DMA UNKNOWN CMD";
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}
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static void ide_dummy_transfer_stop(IDEState *s);
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static void padstr(char *str, const char *src, int len)
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{
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int i, v;
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for(i = 0; i < len; i++) {
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if (*src)
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v = *src++;
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else
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v = ' ';
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str[i^1] = v;
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}
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}
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static void put_le16(uint16_t *p, unsigned int v)
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{
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*p = cpu_to_le16(v);
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}
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static void ide_identify_size(IDEState *s)
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{
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uint16_t *p = (uint16_t *)s->identify_data;
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int64_t nb_sectors_lba28 = s->nb_sectors;
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if (nb_sectors_lba28 >= 1 << 28) {
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nb_sectors_lba28 = (1 << 28) - 1;
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}
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put_le16(p + 60, nb_sectors_lba28);
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put_le16(p + 61, nb_sectors_lba28 >> 16);
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put_le16(p + 100, s->nb_sectors);
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put_le16(p + 101, s->nb_sectors >> 16);
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put_le16(p + 102, s->nb_sectors >> 32);
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put_le16(p + 103, s->nb_sectors >> 48);
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}
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static void ide_identify(IDEState *s)
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{
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uint16_t *p;
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unsigned int oldsize;
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IDEDevice *dev = s->unit ? s->bus->slave : s->bus->master;
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p = (uint16_t *)s->identify_data;
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if (s->identify_set) {
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goto fill_buffer;
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}
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memset(p, 0, sizeof(s->identify_data));
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put_le16(p + 0, 0x0040);
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put_le16(p + 1, s->cylinders);
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put_le16(p + 3, s->heads);
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put_le16(p + 4, 512 * s->sectors); /* XXX: retired, remove ? */
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put_le16(p + 5, 512); /* XXX: retired, remove ? */
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put_le16(p + 6, s->sectors);
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padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
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put_le16(p + 20, 3); /* XXX: retired, remove ? */
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put_le16(p + 21, 512); /* cache size in sectors */
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put_le16(p + 22, 4); /* ecc bytes */
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padstr((char *)(p + 23), s->version, 8); /* firmware version */
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padstr((char *)(p + 27), s->drive_model_str, 40); /* model */
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#if MAX_MULT_SECTORS > 1
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put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
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#endif
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put_le16(p + 48, 1); /* dword I/O */
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put_le16(p + 49, (1 << 11) | (1 << 9) | (1 << 8)); /* DMA and LBA supported */
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put_le16(p + 51, 0x200); /* PIO transfer cycle */
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put_le16(p + 52, 0x200); /* DMA transfer cycle */
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put_le16(p + 53, 1 | (1 << 1) | (1 << 2)); /* words 54-58,64-70,88 are valid */
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put_le16(p + 54, s->cylinders);
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put_le16(p + 55, s->heads);
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put_le16(p + 56, s->sectors);
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oldsize = s->cylinders * s->heads * s->sectors;
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put_le16(p + 57, oldsize);
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put_le16(p + 58, oldsize >> 16);
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if (s->mult_sectors)
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put_le16(p + 59, 0x100 | s->mult_sectors);
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/* *(p + 60) := nb_sectors -- see ide_identify_size */
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/* *(p + 61) := nb_sectors >> 16 -- see ide_identify_size */
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put_le16(p + 62, 0x07); /* single word dma0-2 supported */
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put_le16(p + 63, 0x07); /* mdma0-2 supported */
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put_le16(p + 64, 0x03); /* pio3-4 supported */
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put_le16(p + 65, 120);
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put_le16(p + 66, 120);
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put_le16(p + 67, 120);
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put_le16(p + 68, 120);
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if (dev && dev->conf.discard_granularity) {
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put_le16(p + 69, (1 << 14)); /* determinate TRIM behavior */
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}
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if (s->ncq_queues) {
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put_le16(p + 75, s->ncq_queues - 1);
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/* NCQ supported */
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put_le16(p + 76, (1 << 8));
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}
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put_le16(p + 80, 0xf0); /* ata3 -> ata6 supported */
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put_le16(p + 81, 0x16); /* conforms to ata5 */
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/* 14=NOP supported, 5=WCACHE supported, 0=SMART supported */
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put_le16(p + 82, (1 << 14) | (1 << 5) | 1);
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/* 13=flush_cache_ext,12=flush_cache,10=lba48 */
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put_le16(p + 83, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10));
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/* 14=set to 1, 8=has WWN, 1=SMART self test, 0=SMART error logging */
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if (s->wwn) {
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put_le16(p + 84, (1 << 14) | (1 << 8) | 0);
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} else {
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put_le16(p + 84, (1 << 14) | 0);
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}
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/* 14 = NOP supported, 5=WCACHE enabled, 0=SMART feature set enabled */
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if (blk_enable_write_cache(s->blk)) {
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put_le16(p + 85, (1 << 14) | (1 << 5) | 1);
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} else {
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put_le16(p + 85, (1 << 14) | 1);
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}
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/* 13=flush_cache_ext,12=flush_cache,10=lba48 */
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put_le16(p + 86, (1 << 13) | (1 <<12) | (1 << 10));
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/* 14=set to 1, 8=has WWN, 1=SMART self test, 0=SMART error logging */
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if (s->wwn) {
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put_le16(p + 87, (1 << 14) | (1 << 8) | 0);
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} else {
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put_le16(p + 87, (1 << 14) | 0);
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}
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put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
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put_le16(p + 93, 1 | (1 << 14) | 0x2000);
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/* *(p + 100) := nb_sectors -- see ide_identify_size */
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/* *(p + 101) := nb_sectors >> 16 -- see ide_identify_size */
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/* *(p + 102) := nb_sectors >> 32 -- see ide_identify_size */
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/* *(p + 103) := nb_sectors >> 48 -- see ide_identify_size */
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if (dev && dev->conf.physical_block_size)
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put_le16(p + 106, 0x6000 | get_physical_block_exp(&dev->conf));
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if (s->wwn) {
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/* LE 16-bit words 111-108 contain 64-bit World Wide Name */
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put_le16(p + 108, s->wwn >> 48);
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put_le16(p + 109, s->wwn >> 32);
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put_le16(p + 110, s->wwn >> 16);
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put_le16(p + 111, s->wwn);
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}
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if (dev && dev->conf.discard_granularity) {
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put_le16(p + 169, 1); /* TRIM support */
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}
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if (dev) {
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put_le16(p + 217, dev->rotation_rate); /* Nominal media rotation rate */
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}
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ide_identify_size(s);
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s->identify_set = 1;
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fill_buffer:
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memcpy(s->io_buffer, p, sizeof(s->identify_data));
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}
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static void ide_atapi_identify(IDEState *s)
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{
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uint16_t *p;
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p = (uint16_t *)s->identify_data;
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if (s->identify_set) {
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goto fill_buffer;
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}
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memset(p, 0, sizeof(s->identify_data));
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/* Removable CDROM, 50us response, 12 byte packets */
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put_le16(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0));
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padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
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put_le16(p + 20, 3); /* buffer type */
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put_le16(p + 21, 512); /* cache size in sectors */
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put_le16(p + 22, 4); /* ecc bytes */
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padstr((char *)(p + 23), s->version, 8); /* firmware version */
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padstr((char *)(p + 27), s->drive_model_str, 40); /* model */
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put_le16(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */
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#ifdef USE_DMA_CDROM
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put_le16(p + 49, 1 << 9 | 1 << 8); /* DMA and LBA supported */
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put_le16(p + 53, 7); /* words 64-70, 54-58, 88 valid */
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put_le16(p + 62, 7); /* single word dma0-2 supported */
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put_le16(p + 63, 7); /* mdma0-2 supported */
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#else
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put_le16(p + 49, 1 << 9); /* LBA supported, no DMA */
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put_le16(p + 53, 3); /* words 64-70, 54-58 valid */
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put_le16(p + 63, 0x103); /* DMA modes XXX: may be incorrect */
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#endif
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put_le16(p + 64, 3); /* pio3-4 supported */
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put_le16(p + 65, 0xb4); /* minimum DMA multiword tx cycle time */
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put_le16(p + 66, 0xb4); /* recommended DMA multiword tx cycle time */
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put_le16(p + 67, 0x12c); /* minimum PIO cycle time without flow control */
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put_le16(p + 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */
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put_le16(p + 71, 30); /* in ns */
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put_le16(p + 72, 30); /* in ns */
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if (s->ncq_queues) {
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put_le16(p + 75, s->ncq_queues - 1);
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/* NCQ supported */
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put_le16(p + 76, (1 << 8));
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}
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put_le16(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */
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if (s->wwn) {
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put_le16(p + 84, (1 << 8)); /* supports WWN for words 108-111 */
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put_le16(p + 87, (1 << 8)); /* WWN enabled */
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}
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#ifdef USE_DMA_CDROM
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put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
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#endif
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if (s->wwn) {
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/* LE 16-bit words 111-108 contain 64-bit World Wide Name */
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put_le16(p + 108, s->wwn >> 48);
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put_le16(p + 109, s->wwn >> 32);
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put_le16(p + 110, s->wwn >> 16);
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put_le16(p + 111, s->wwn);
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}
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s->identify_set = 1;
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fill_buffer:
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memcpy(s->io_buffer, p, sizeof(s->identify_data));
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}
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static void ide_cfata_identify_size(IDEState *s)
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{
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uint16_t *p = (uint16_t *)s->identify_data;
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put_le16(p + 7, s->nb_sectors >> 16); /* Sectors per card */
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put_le16(p + 8, s->nb_sectors); /* Sectors per card */
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put_le16(p + 60, s->nb_sectors); /* Total LBA sectors */
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put_le16(p + 61, s->nb_sectors >> 16); /* Total LBA sectors */
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}
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static void ide_cfata_identify(IDEState *s)
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{
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uint16_t *p;
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uint32_t cur_sec;
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p = (uint16_t *)s->identify_data;
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if (s->identify_set) {
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goto fill_buffer;
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}
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memset(p, 0, sizeof(s->identify_data));
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cur_sec = s->cylinders * s->heads * s->sectors;
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put_le16(p + 0, 0x848a); /* CF Storage Card signature */
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put_le16(p + 1, s->cylinders); /* Default cylinders */
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put_le16(p + 3, s->heads); /* Default heads */
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put_le16(p + 6, s->sectors); /* Default sectors per track */
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/* *(p + 7) := nb_sectors >> 16 -- see ide_cfata_identify_size */
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/* *(p + 8) := nb_sectors -- see ide_cfata_identify_size */
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padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
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put_le16(p + 22, 0x0004); /* ECC bytes */
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padstr((char *) (p + 23), s->version, 8); /* Firmware Revision */
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padstr((char *) (p + 27), s->drive_model_str, 40);/* Model number */
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#if MAX_MULT_SECTORS > 1
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put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
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#else
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put_le16(p + 47, 0x0000);
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#endif
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put_le16(p + 49, 0x0f00); /* Capabilities */
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put_le16(p + 51, 0x0002); /* PIO cycle timing mode */
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put_le16(p + 52, 0x0001); /* DMA cycle timing mode */
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put_le16(p + 53, 0x0003); /* Translation params valid */
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put_le16(p + 54, s->cylinders); /* Current cylinders */
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put_le16(p + 55, s->heads); /* Current heads */
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put_le16(p + 56, s->sectors); /* Current sectors */
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put_le16(p + 57, cur_sec); /* Current capacity */
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put_le16(p + 58, cur_sec >> 16); /* Current capacity */
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if (s->mult_sectors) /* Multiple sector setting */
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put_le16(p + 59, 0x100 | s->mult_sectors);
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/* *(p + 60) := nb_sectors -- see ide_cfata_identify_size */
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/* *(p + 61) := nb_sectors >> 16 -- see ide_cfata_identify_size */
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put_le16(p + 63, 0x0203); /* Multiword DMA capability */
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put_le16(p + 64, 0x0001); /* Flow Control PIO support */
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put_le16(p + 65, 0x0096); /* Min. Multiword DMA cycle */
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put_le16(p + 66, 0x0096); /* Rec. Multiword DMA cycle */
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put_le16(p + 68, 0x00b4); /* Min. PIO cycle time */
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put_le16(p + 82, 0x400c); /* Command Set supported */
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put_le16(p + 83, 0x7068); /* Command Set supported */
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put_le16(p + 84, 0x4000); /* Features supported */
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put_le16(p + 85, 0x000c); /* Command Set enabled */
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put_le16(p + 86, 0x7044); /* Command Set enabled */
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put_le16(p + 87, 0x4000); /* Features enabled */
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put_le16(p + 91, 0x4060); /* Current APM level */
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put_le16(p + 129, 0x0002); /* Current features option */
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put_le16(p + 130, 0x0005); /* Reassigned sectors */
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put_le16(p + 131, 0x0001); /* Initial power mode */
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put_le16(p + 132, 0x0000); /* User signature */
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put_le16(p + 160, 0x8100); /* Power requirement */
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put_le16(p + 161, 0x8001); /* CF command set */
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ide_cfata_identify_size(s);
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s->identify_set = 1;
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|
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fill_buffer:
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memcpy(s->io_buffer, p, sizeof(s->identify_data));
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}
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|
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static void ide_set_signature(IDEState *s)
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{
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s->select &= ~(ATA_DEV_HS); /* clear head */
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/* put signature */
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s->nsector = 1;
|
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s->sector = 1;
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if (s->drive_kind == IDE_CD) {
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s->lcyl = 0x14;
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s->hcyl = 0xeb;
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} else if (s->blk) {
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s->lcyl = 0;
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s->hcyl = 0;
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} else {
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s->lcyl = 0xff;
|
|
s->hcyl = 0xff;
|
|
}
|
|
}
|
|
|
|
static bool ide_sect_range_ok(IDEState *s,
|
|
uint64_t sector, uint64_t nb_sectors)
|
|
{
|
|
uint64_t total_sectors;
|
|
|
|
blk_get_geometry(s->blk, &total_sectors);
|
|
if (sector > total_sectors || nb_sectors > total_sectors - sector) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
typedef struct TrimAIOCB {
|
|
BlockAIOCB common;
|
|
IDEState *s;
|
|
QEMUBH *bh;
|
|
int ret;
|
|
QEMUIOVector *qiov;
|
|
BlockAIOCB *aiocb;
|
|
int i, j;
|
|
} TrimAIOCB;
|
|
|
|
static void trim_aio_cancel(BlockAIOCB *acb)
|
|
{
|
|
TrimAIOCB *iocb = container_of(acb, TrimAIOCB, common);
|
|
|
|
/* Exit the loop so ide_issue_trim_cb will not continue */
|
|
iocb->j = iocb->qiov->niov - 1;
|
|
iocb->i = (iocb->qiov->iov[iocb->j].iov_len / 8) - 1;
|
|
|
|
iocb->ret = -ECANCELED;
|
|
|
|
if (iocb->aiocb) {
|
|
blk_aio_cancel_async(iocb->aiocb);
|
|
iocb->aiocb = NULL;
|
|
}
|
|
}
|
|
|
|
static const AIOCBInfo trim_aiocb_info = {
|
|
.aiocb_size = sizeof(TrimAIOCB),
|
|
.cancel_async = trim_aio_cancel,
|
|
};
|
|
|
|
static void ide_trim_bh_cb(void *opaque)
|
|
{
|
|
TrimAIOCB *iocb = opaque;
|
|
BlockBackend *blk = iocb->s->blk;
|
|
|
|
iocb->common.cb(iocb->common.opaque, iocb->ret);
|
|
|
|
qemu_bh_delete(iocb->bh);
|
|
iocb->bh = NULL;
|
|
qemu_aio_unref(iocb);
|
|
|
|
/* Paired with an increment in ide_issue_trim() */
|
|
blk_dec_in_flight(blk);
|
|
}
|
|
|
|
static void ide_issue_trim_cb(void *opaque, int ret)
|
|
{
|
|
TrimAIOCB *iocb = opaque;
|
|
IDEState *s = iocb->s;
|
|
|
|
if (iocb->i >= 0) {
|
|
if (ret >= 0) {
|
|
block_acct_done(blk_get_stats(s->blk), &s->acct);
|
|
} else {
|
|
block_acct_failed(blk_get_stats(s->blk), &s->acct);
|
|
}
|
|
}
|
|
|
|
if (ret >= 0) {
|
|
while (iocb->j < iocb->qiov->niov) {
|
|
int j = iocb->j;
|
|
while (++iocb->i < iocb->qiov->iov[j].iov_len / 8) {
|
|
int i = iocb->i;
|
|
uint64_t *buffer = iocb->qiov->iov[j].iov_base;
|
|
|
|
/* 6-byte LBA + 2-byte range per entry */
|
|
uint64_t entry = le64_to_cpu(buffer[i]);
|
|
uint64_t sector = entry & 0x0000ffffffffffffULL;
|
|
uint16_t count = entry >> 48;
|
|
|
|
if (count == 0) {
|
|
continue;
|
|
}
|
|
|
|
if (!ide_sect_range_ok(s, sector, count)) {
|
|
block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_UNMAP);
|
|
iocb->ret = -EINVAL;
|
|
goto done;
|
|
}
|
|
|
|
block_acct_start(blk_get_stats(s->blk), &s->acct,
|
|
count << BDRV_SECTOR_BITS, BLOCK_ACCT_UNMAP);
|
|
|
|
/* Got an entry! Submit and exit. */
|
|
iocb->aiocb = blk_aio_pdiscard(s->blk,
|
|
sector << BDRV_SECTOR_BITS,
|
|
count << BDRV_SECTOR_BITS,
|
|
ide_issue_trim_cb, opaque);
|
|
return;
|
|
}
|
|
|
|
iocb->j++;
|
|
iocb->i = -1;
|
|
}
|
|
} else {
|
|
iocb->ret = ret;
|
|
}
|
|
|
|
done:
|
|
iocb->aiocb = NULL;
|
|
if (iocb->bh) {
|
|
replay_bh_schedule_event(iocb->bh);
|
|
}
|
|
}
|
|
|
|
BlockAIOCB *ide_issue_trim(
|
|
int64_t offset, QEMUIOVector *qiov,
|
|
BlockCompletionFunc *cb, void *cb_opaque, void *opaque)
|
|
{
|
|
IDEState *s = opaque;
|
|
TrimAIOCB *iocb;
|
|
|
|
/* Paired with a decrement in ide_trim_bh_cb() */
|
|
blk_inc_in_flight(s->blk);
|
|
|
|
iocb = blk_aio_get(&trim_aiocb_info, s->blk, cb, cb_opaque);
|
|
iocb->s = s;
|
|
iocb->bh = qemu_bh_new(ide_trim_bh_cb, iocb);
|
|
iocb->ret = 0;
|
|
iocb->qiov = qiov;
|
|
iocb->i = -1;
|
|
iocb->j = 0;
|
|
ide_issue_trim_cb(iocb, 0);
|
|
return &iocb->common;
|
|
}
|
|
|
|
void ide_abort_command(IDEState *s)
|
|
{
|
|
ide_transfer_stop(s);
|
|
s->status = READY_STAT | ERR_STAT;
|
|
s->error = ABRT_ERR;
|
|
}
|
|
|
|
static void ide_set_retry(IDEState *s)
|
|
{
|
|
s->bus->retry_unit = s->unit;
|
|
s->bus->retry_sector_num = ide_get_sector(s);
|
|
s->bus->retry_nsector = s->nsector;
|
|
}
|
|
|
|
static void ide_clear_retry(IDEState *s)
|
|
{
|
|
s->bus->retry_unit = -1;
|
|
s->bus->retry_sector_num = 0;
|
|
s->bus->retry_nsector = 0;
|
|
}
|
|
|
|
/* prepare data transfer and tell what to do after */
|
|
bool ide_transfer_start_norecurse(IDEState *s, uint8_t *buf, int size,
|
|
EndTransferFunc *end_transfer_func)
|
|
{
|
|
s->data_ptr = buf;
|
|
s->data_end = buf + size;
|
|
ide_set_retry(s);
|
|
if (!(s->status & ERR_STAT)) {
|
|
s->status |= DRQ_STAT;
|
|
}
|
|
if (!s->bus->dma->ops->pio_transfer) {
|
|
s->end_transfer_func = end_transfer_func;
|
|
return false;
|
|
}
|
|
s->bus->dma->ops->pio_transfer(s->bus->dma);
|
|
return true;
|
|
}
|
|
|
|
void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
|
|
EndTransferFunc *end_transfer_func)
|
|
{
|
|
if (ide_transfer_start_norecurse(s, buf, size, end_transfer_func)) {
|
|
end_transfer_func(s);
|
|
}
|
|
}
|
|
|
|
static void ide_cmd_done(IDEState *s)
|
|
{
|
|
if (s->bus->dma->ops->cmd_done) {
|
|
s->bus->dma->ops->cmd_done(s->bus->dma);
|
|
}
|
|
}
|
|
|
|
static void ide_transfer_halt(IDEState *s)
|
|
{
|
|
s->end_transfer_func = ide_transfer_stop;
|
|
s->data_ptr = s->io_buffer;
|
|
s->data_end = s->io_buffer;
|
|
s->status &= ~DRQ_STAT;
|
|
}
|
|
|
|
void ide_transfer_stop(IDEState *s)
|
|
{
|
|
ide_transfer_halt(s);
|
|
ide_cmd_done(s);
|
|
}
|
|
|
|
int64_t ide_get_sector(IDEState *s)
|
|
{
|
|
int64_t sector_num;
|
|
if (s->select & (ATA_DEV_LBA)) {
|
|
if (s->lba48) {
|
|
sector_num = ((int64_t)s->hob_hcyl << 40) |
|
|
((int64_t) s->hob_lcyl << 32) |
|
|
((int64_t) s->hob_sector << 24) |
|
|
((int64_t) s->hcyl << 16) |
|
|
((int64_t) s->lcyl << 8) | s->sector;
|
|
} else {
|
|
/* LBA28 */
|
|
sector_num = ((s->select & (ATA_DEV_LBA_MSB)) << 24) |
|
|
(s->hcyl << 16) | (s->lcyl << 8) | s->sector;
|
|
}
|
|
} else {
|
|
/* CHS */
|
|
sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
|
|
(s->select & (ATA_DEV_HS)) * s->sectors + (s->sector - 1);
|
|
}
|
|
|
|
return sector_num;
|
|
}
|
|
|
|
void ide_set_sector(IDEState *s, int64_t sector_num)
|
|
{
|
|
unsigned int cyl, r;
|
|
if (s->select & (ATA_DEV_LBA)) {
|
|
if (s->lba48) {
|
|
s->sector = sector_num;
|
|
s->lcyl = sector_num >> 8;
|
|
s->hcyl = sector_num >> 16;
|
|
s->hob_sector = sector_num >> 24;
|
|
s->hob_lcyl = sector_num >> 32;
|
|
s->hob_hcyl = sector_num >> 40;
|
|
} else {
|
|
/* LBA28 */
|
|
s->select = (s->select & ~(ATA_DEV_LBA_MSB)) |
|
|
((sector_num >> 24) & (ATA_DEV_LBA_MSB));
|
|
s->hcyl = (sector_num >> 16);
|
|
s->lcyl = (sector_num >> 8);
|
|
s->sector = (sector_num);
|
|
}
|
|
} else {
|
|
/* CHS */
|
|
cyl = sector_num / (s->heads * s->sectors);
|
|
r = sector_num % (s->heads * s->sectors);
|
|
s->hcyl = cyl >> 8;
|
|
s->lcyl = cyl;
|
|
s->select = (s->select & ~(ATA_DEV_HS)) |
|
|
((r / s->sectors) & (ATA_DEV_HS));
|
|
s->sector = (r % s->sectors) + 1;
|
|
}
|
|
}
|
|
|
|
static void ide_rw_error(IDEState *s) {
|
|
ide_abort_command(s);
|
|
ide_set_irq(s->bus);
|
|
}
|
|
|
|
static void ide_buffered_readv_cb(void *opaque, int ret)
|
|
{
|
|
IDEBufferedRequest *req = opaque;
|
|
if (!req->orphaned) {
|
|
if (!ret) {
|
|
assert(req->qiov.size == req->original_qiov->size);
|
|
qemu_iovec_from_buf(req->original_qiov, 0,
|
|
req->qiov.local_iov.iov_base,
|
|
req->original_qiov->size);
|
|
}
|
|
req->original_cb(req->original_opaque, ret);
|
|
}
|
|
QLIST_REMOVE(req, list);
|
|
qemu_vfree(qemu_iovec_buf(&req->qiov));
|
|
g_free(req);
|
|
}
|
|
|
|
#define MAX_BUFFERED_REQS 16
|
|
|
|
BlockAIOCB *ide_buffered_readv(IDEState *s, int64_t sector_num,
|
|
QEMUIOVector *iov, int nb_sectors,
|
|
BlockCompletionFunc *cb, void *opaque)
|
|
{
|
|
BlockAIOCB *aioreq;
|
|
IDEBufferedRequest *req;
|
|
int c = 0;
|
|
|
|
QLIST_FOREACH(req, &s->buffered_requests, list) {
|
|
c++;
|
|
}
|
|
if (c > MAX_BUFFERED_REQS) {
|
|
return blk_abort_aio_request(s->blk, cb, opaque, -EIO);
|
|
}
|
|
|
|
req = g_new0(IDEBufferedRequest, 1);
|
|
req->original_qiov = iov;
|
|
req->original_cb = cb;
|
|
req->original_opaque = opaque;
|
|
qemu_iovec_init_buf(&req->qiov, blk_blockalign(s->blk, iov->size),
|
|
iov->size);
|
|
|
|
aioreq = blk_aio_preadv(s->blk, sector_num << BDRV_SECTOR_BITS,
|
|
&req->qiov, 0, ide_buffered_readv_cb, req);
|
|
|
|
QLIST_INSERT_HEAD(&s->buffered_requests, req, list);
|
|
return aioreq;
|
|
}
|
|
|
|
/**
|
|
* Cancel all pending DMA requests.
|
|
* Any buffered DMA requests are instantly canceled,
|
|
* but any pending unbuffered DMA requests must be waited on.
|
|
*/
|
|
void ide_cancel_dma_sync(IDEState *s)
|
|
{
|
|
IDEBufferedRequest *req;
|
|
|
|
/* First invoke the callbacks of all buffered requests
|
|
* and flag those requests as orphaned. Ideally there
|
|
* are no unbuffered (Scatter Gather DMA Requests or
|
|
* write requests) pending and we can avoid to drain. */
|
|
QLIST_FOREACH(req, &s->buffered_requests, list) {
|
|
if (!req->orphaned) {
|
|
trace_ide_cancel_dma_sync_buffered(req->original_cb, req);
|
|
req->original_cb(req->original_opaque, -ECANCELED);
|
|
}
|
|
req->orphaned = true;
|
|
}
|
|
|
|
/*
|
|
* We can't cancel Scatter Gather DMA in the middle of the
|
|
* operation or a partial (not full) DMA transfer would reach
|
|
* the storage so we wait for completion instead (we behave
|
|
* like if the DMA was completed by the time the guest trying
|
|
* to cancel dma with bmdma_cmd_writeb with BM_CMD_START not
|
|
* set).
|
|
*
|
|
* In the future we'll be able to safely cancel the I/O if the
|
|
* whole DMA operation will be submitted to disk with a single
|
|
* aio operation with preadv/pwritev.
|
|
*/
|
|
if (s->bus->dma->aiocb) {
|
|
trace_ide_cancel_dma_sync_remaining();
|
|
blk_drain(s->blk);
|
|
assert(s->bus->dma->aiocb == NULL);
|
|
}
|
|
}
|
|
|
|
static void ide_sector_read(IDEState *s);
|
|
|
|
static void ide_sector_read_cb(void *opaque, int ret)
|
|
{
|
|
IDEState *s = opaque;
|
|
int n;
|
|
|
|
s->pio_aiocb = NULL;
|
|
s->status &= ~BUSY_STAT;
|
|
|
|
if (ret != 0) {
|
|
if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO |
|
|
IDE_RETRY_READ)) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
block_acct_done(blk_get_stats(s->blk), &s->acct);
|
|
|
|
n = s->nsector;
|
|
if (n > s->req_nb_sectors) {
|
|
n = s->req_nb_sectors;
|
|
}
|
|
|
|
ide_set_sector(s, ide_get_sector(s) + n);
|
|
s->nsector -= n;
|
|
/* Allow the guest to read the io_buffer */
|
|
ide_transfer_start(s, s->io_buffer, n * BDRV_SECTOR_SIZE, ide_sector_read);
|
|
ide_set_irq(s->bus);
|
|
}
|
|
|
|
static void ide_sector_read(IDEState *s)
|
|
{
|
|
int64_t sector_num;
|
|
int n;
|
|
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
s->error = 0; /* not needed by IDE spec, but needed by Windows */
|
|
sector_num = ide_get_sector(s);
|
|
n = s->nsector;
|
|
|
|
if (n == 0) {
|
|
ide_transfer_stop(s);
|
|
return;
|
|
}
|
|
|
|
s->status |= BUSY_STAT;
|
|
|
|
if (n > s->req_nb_sectors) {
|
|
n = s->req_nb_sectors;
|
|
}
|
|
|
|
trace_ide_sector_read(sector_num, n);
|
|
|
|
if (!ide_sect_range_ok(s, sector_num, n)) {
|
|
ide_rw_error(s);
|
|
block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_READ);
|
|
return;
|
|
}
|
|
|
|
qemu_iovec_init_buf(&s->qiov, s->io_buffer, n * BDRV_SECTOR_SIZE);
|
|
|
|
block_acct_start(blk_get_stats(s->blk), &s->acct,
|
|
n * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
|
|
s->pio_aiocb = ide_buffered_readv(s, sector_num, &s->qiov, n,
|
|
ide_sector_read_cb, s);
|
|
}
|
|
|
|
void dma_buf_commit(IDEState *s, uint32_t tx_bytes)
|
|
{
|
|
if (s->bus->dma->ops->commit_buf) {
|
|
s->bus->dma->ops->commit_buf(s->bus->dma, tx_bytes);
|
|
}
|
|
s->io_buffer_offset += tx_bytes;
|
|
qemu_sglist_destroy(&s->sg);
|
|
}
|
|
|
|
void ide_set_inactive(IDEState *s, bool more)
|
|
{
|
|
s->bus->dma->aiocb = NULL;
|
|
ide_clear_retry(s);
|
|
if (s->bus->dma->ops->set_inactive) {
|
|
s->bus->dma->ops->set_inactive(s->bus->dma, more);
|
|
}
|
|
ide_cmd_done(s);
|
|
}
|
|
|
|
void ide_dma_error(IDEState *s)
|
|
{
|
|
dma_buf_commit(s, 0);
|
|
ide_abort_command(s);
|
|
ide_set_inactive(s, false);
|
|
ide_set_irq(s->bus);
|
|
}
|
|
|
|
int ide_handle_rw_error(IDEState *s, int error, int op)
|
|
{
|
|
bool is_read = (op & IDE_RETRY_READ) != 0;
|
|
BlockErrorAction action = blk_get_error_action(s->blk, is_read, error);
|
|
|
|
if (action == BLOCK_ERROR_ACTION_STOP) {
|
|
assert(s->bus->retry_unit == s->unit);
|
|
s->bus->error_status = op;
|
|
} else if (action == BLOCK_ERROR_ACTION_REPORT) {
|
|
block_acct_failed(blk_get_stats(s->blk), &s->acct);
|
|
if (IS_IDE_RETRY_DMA(op)) {
|
|
ide_dma_error(s);
|
|
} else if (IS_IDE_RETRY_ATAPI(op)) {
|
|
ide_atapi_io_error(s, -error);
|
|
} else {
|
|
ide_rw_error(s);
|
|
}
|
|
}
|
|
blk_error_action(s->blk, action, is_read, error);
|
|
return action != BLOCK_ERROR_ACTION_IGNORE;
|
|
}
|
|
|
|
static void ide_dma_cb(void *opaque, int ret)
|
|
{
|
|
IDEState *s = opaque;
|
|
int n;
|
|
int64_t sector_num;
|
|
uint64_t offset;
|
|
bool stay_active = false;
|
|
int32_t prep_size = 0;
|
|
|
|
if (ret == -EINVAL) {
|
|
ide_dma_error(s);
|
|
return;
|
|
}
|
|
|
|
if (ret < 0) {
|
|
if (ide_handle_rw_error(s, -ret, ide_dma_cmd_to_retry(s->dma_cmd))) {
|
|
s->bus->dma->aiocb = NULL;
|
|
dma_buf_commit(s, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (s->io_buffer_size > s->nsector * 512) {
|
|
/*
|
|
* The PRDs were longer than needed for this request.
|
|
* The Active bit must remain set after the request completes.
|
|
*/
|
|
n = s->nsector;
|
|
stay_active = true;
|
|
} else {
|
|
n = s->io_buffer_size >> 9;
|
|
}
|
|
|
|
sector_num = ide_get_sector(s);
|
|
if (n > 0) {
|
|
assert(n * 512 == s->sg.size);
|
|
dma_buf_commit(s, s->sg.size);
|
|
sector_num += n;
|
|
ide_set_sector(s, sector_num);
|
|
s->nsector -= n;
|
|
}
|
|
|
|
/* end of transfer ? */
|
|
if (s->nsector == 0) {
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_set_irq(s->bus);
|
|
goto eot;
|
|
}
|
|
|
|
/* launch next transfer */
|
|
n = s->nsector;
|
|
s->io_buffer_index = 0;
|
|
s->io_buffer_size = n * 512;
|
|
prep_size = s->bus->dma->ops->prepare_buf(s->bus->dma, s->io_buffer_size);
|
|
/* prepare_buf() must succeed and respect the limit */
|
|
assert(prep_size >= 0 && prep_size <= n * 512);
|
|
|
|
/*
|
|
* Now prep_size stores the number of bytes in the sglist, and
|
|
* s->io_buffer_size stores the number of bytes described by the PRDs.
|
|
*/
|
|
|
|
if (prep_size < n * 512) {
|
|
/*
|
|
* The PRDs are too short for this request. Error condition!
|
|
* Reset the Active bit and don't raise the interrupt.
|
|
*/
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
dma_buf_commit(s, 0);
|
|
goto eot;
|
|
}
|
|
|
|
trace_ide_dma_cb(s, sector_num, n, IDE_DMA_CMD_str(s->dma_cmd));
|
|
|
|
if ((s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) &&
|
|
!ide_sect_range_ok(s, sector_num, n)) {
|
|
ide_dma_error(s);
|
|
block_acct_invalid(blk_get_stats(s->blk), s->acct.type);
|
|
return;
|
|
}
|
|
|
|
offset = sector_num << BDRV_SECTOR_BITS;
|
|
switch (s->dma_cmd) {
|
|
case IDE_DMA_READ:
|
|
s->bus->dma->aiocb = dma_blk_read(s->blk, &s->sg, offset,
|
|
BDRV_SECTOR_SIZE, ide_dma_cb, s);
|
|
break;
|
|
case IDE_DMA_WRITE:
|
|
s->bus->dma->aiocb = dma_blk_write(s->blk, &s->sg, offset,
|
|
BDRV_SECTOR_SIZE, ide_dma_cb, s);
|
|
break;
|
|
case IDE_DMA_TRIM:
|
|
s->bus->dma->aiocb = dma_blk_io(blk_get_aio_context(s->blk),
|
|
&s->sg, offset, BDRV_SECTOR_SIZE,
|
|
ide_issue_trim, s, ide_dma_cb, s,
|
|
DMA_DIRECTION_TO_DEVICE);
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
return;
|
|
|
|
eot:
|
|
if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) {
|
|
block_acct_done(blk_get_stats(s->blk), &s->acct);
|
|
}
|
|
ide_set_inactive(s, stay_active);
|
|
}
|
|
|
|
static void ide_sector_start_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
|
|
{
|
|
s->status = READY_STAT | SEEK_STAT | DRQ_STAT;
|
|
s->io_buffer_size = 0;
|
|
s->dma_cmd = dma_cmd;
|
|
|
|
switch (dma_cmd) {
|
|
case IDE_DMA_READ:
|
|
block_acct_start(blk_get_stats(s->blk), &s->acct,
|
|
s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
|
|
break;
|
|
case IDE_DMA_WRITE:
|
|
block_acct_start(blk_get_stats(s->blk), &s->acct,
|
|
s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ide_start_dma(s, ide_dma_cb);
|
|
}
|
|
|
|
void ide_start_dma(IDEState *s, BlockCompletionFunc *cb)
|
|
{
|
|
s->io_buffer_index = 0;
|
|
ide_set_retry(s);
|
|
if (s->bus->dma->ops->start_dma) {
|
|
s->bus->dma->ops->start_dma(s->bus->dma, s, cb);
|
|
}
|
|
}
|
|
|
|
static void ide_sector_write(IDEState *s);
|
|
|
|
static void ide_sector_write_timer_cb(void *opaque)
|
|
{
|
|
IDEState *s = opaque;
|
|
ide_set_irq(s->bus);
|
|
}
|
|
|
|
static void ide_sector_write_cb(void *opaque, int ret)
|
|
{
|
|
IDEState *s = opaque;
|
|
int n;
|
|
|
|
s->pio_aiocb = NULL;
|
|
s->status &= ~BUSY_STAT;
|
|
|
|
if (ret != 0) {
|
|
if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO)) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
block_acct_done(blk_get_stats(s->blk), &s->acct);
|
|
|
|
n = s->nsector;
|
|
if (n > s->req_nb_sectors) {
|
|
n = s->req_nb_sectors;
|
|
}
|
|
s->nsector -= n;
|
|
|
|
ide_set_sector(s, ide_get_sector(s) + n);
|
|
if (s->nsector == 0) {
|
|
/* no more sectors to write */
|
|
ide_transfer_stop(s);
|
|
} else {
|
|
int n1 = s->nsector;
|
|
if (n1 > s->req_nb_sectors) {
|
|
n1 = s->req_nb_sectors;
|
|
}
|
|
ide_transfer_start(s, s->io_buffer, n1 * BDRV_SECTOR_SIZE,
|
|
ide_sector_write);
|
|
}
|
|
|
|
if (win2k_install_hack && ((++s->irq_count % 16) == 0)) {
|
|
/* It seems there is a bug in the Windows 2000 installer HDD
|
|
IDE driver which fills the disk with empty logs when the
|
|
IDE write IRQ comes too early. This hack tries to correct
|
|
that at the expense of slower write performances. Use this
|
|
option _only_ to install Windows 2000. You must disable it
|
|
for normal use. */
|
|
timer_mod(s->sector_write_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
|
|
(NANOSECONDS_PER_SECOND / 1000));
|
|
} else {
|
|
ide_set_irq(s->bus);
|
|
}
|
|
}
|
|
|
|
static void ide_sector_write(IDEState *s)
|
|
{
|
|
int64_t sector_num;
|
|
int n;
|
|
|
|
s->status = READY_STAT | SEEK_STAT | BUSY_STAT;
|
|
sector_num = ide_get_sector(s);
|
|
|
|
n = s->nsector;
|
|
if (n > s->req_nb_sectors) {
|
|
n = s->req_nb_sectors;
|
|
}
|
|
|
|
trace_ide_sector_write(sector_num, n);
|
|
|
|
if (!ide_sect_range_ok(s, sector_num, n)) {
|
|
ide_rw_error(s);
|
|
block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_WRITE);
|
|
return;
|
|
}
|
|
|
|
qemu_iovec_init_buf(&s->qiov, s->io_buffer, n * BDRV_SECTOR_SIZE);
|
|
|
|
block_acct_start(blk_get_stats(s->blk), &s->acct,
|
|
n * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
|
|
s->pio_aiocb = blk_aio_pwritev(s->blk, sector_num << BDRV_SECTOR_BITS,
|
|
&s->qiov, 0, ide_sector_write_cb, s);
|
|
}
|
|
|
|
static void ide_flush_cb(void *opaque, int ret)
|
|
{
|
|
IDEState *s = opaque;
|
|
|
|
s->pio_aiocb = NULL;
|
|
|
|
if (ret < 0) {
|
|
/* XXX: What sector number to set here? */
|
|
if (ide_handle_rw_error(s, -ret, IDE_RETRY_FLUSH)) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (s->blk) {
|
|
block_acct_done(blk_get_stats(s->blk), &s->acct);
|
|
}
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_cmd_done(s);
|
|
ide_set_irq(s->bus);
|
|
}
|
|
|
|
static void ide_flush_cache(IDEState *s)
|
|
{
|
|
if (s->blk == NULL) {
|
|
ide_flush_cb(s, 0);
|
|
return;
|
|
}
|
|
|
|
s->status |= BUSY_STAT;
|
|
ide_set_retry(s);
|
|
block_acct_start(blk_get_stats(s->blk), &s->acct, 0, BLOCK_ACCT_FLUSH);
|
|
s->pio_aiocb = blk_aio_flush(s->blk, ide_flush_cb, s);
|
|
}
|
|
|
|
static void ide_cfata_metadata_inquiry(IDEState *s)
|
|
{
|
|
uint16_t *p;
|
|
uint32_t spd;
|
|
|
|
p = (uint16_t *) s->io_buffer;
|
|
memset(p, 0, 0x200);
|
|
spd = ((s->mdata_size - 1) >> 9) + 1;
|
|
|
|
put_le16(p + 0, 0x0001); /* Data format revision */
|
|
put_le16(p + 1, 0x0000); /* Media property: silicon */
|
|
put_le16(p + 2, s->media_changed); /* Media status */
|
|
put_le16(p + 3, s->mdata_size & 0xffff); /* Capacity in bytes (low) */
|
|
put_le16(p + 4, s->mdata_size >> 16); /* Capacity in bytes (high) */
|
|
put_le16(p + 5, spd & 0xffff); /* Sectors per device (low) */
|
|
put_le16(p + 6, spd >> 16); /* Sectors per device (high) */
|
|
}
|
|
|
|
static void ide_cfata_metadata_read(IDEState *s)
|
|
{
|
|
uint16_t *p;
|
|
|
|
if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
|
|
s->status = ERR_STAT;
|
|
s->error = ABRT_ERR;
|
|
return;
|
|
}
|
|
|
|
p = (uint16_t *) s->io_buffer;
|
|
memset(p, 0, 0x200);
|
|
|
|
put_le16(p + 0, s->media_changed); /* Media status */
|
|
memcpy(p + 1, s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
|
|
MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
|
|
s->nsector << 9), 0x200 - 2));
|
|
}
|
|
|
|
static void ide_cfata_metadata_write(IDEState *s)
|
|
{
|
|
if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
|
|
s->status = ERR_STAT;
|
|
s->error = ABRT_ERR;
|
|
return;
|
|
}
|
|
|
|
s->media_changed = 0;
|
|
|
|
memcpy(s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
|
|
s->io_buffer + 2,
|
|
MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
|
|
s->nsector << 9), 0x200 - 2));
|
|
}
|
|
|
|
/* called when the inserted state of the media has changed */
|
|
static void ide_cd_change_cb(void *opaque, bool load, Error **errp)
|
|
{
|
|
IDEState *s = opaque;
|
|
uint64_t nb_sectors;
|
|
|
|
s->tray_open = !load;
|
|
blk_get_geometry(s->blk, &nb_sectors);
|
|
s->nb_sectors = nb_sectors;
|
|
|
|
/*
|
|
* First indicate to the guest that a CD has been removed. That's
|
|
* done on the next command the guest sends us.
|
|
*
|
|
* Then we set UNIT_ATTENTION, by which the guest will
|
|
* detect a new CD in the drive. See ide_atapi_cmd() for details.
|
|
*/
|
|
s->cdrom_changed = 1;
|
|
s->events.new_media = true;
|
|
s->events.eject_request = false;
|
|
ide_set_irq(s->bus);
|
|
}
|
|
|
|
static void ide_cd_eject_request_cb(void *opaque, bool force)
|
|
{
|
|
IDEState *s = opaque;
|
|
|
|
s->events.eject_request = true;
|
|
if (force) {
|
|
s->tray_locked = false;
|
|
}
|
|
ide_set_irq(s->bus);
|
|
}
|
|
|
|
static void ide_cmd_lba48_transform(IDEState *s, int lba48)
|
|
{
|
|
s->lba48 = lba48;
|
|
|
|
/* handle the 'magic' 0 nsector count conversion here. to avoid
|
|
* fiddling with the rest of the read logic, we just store the
|
|
* full sector count in ->nsector and ignore ->hob_nsector from now
|
|
*/
|
|
if (!s->lba48) {
|
|
if (!s->nsector)
|
|
s->nsector = 256;
|
|
} else {
|
|
if (!s->nsector && !s->hob_nsector)
|
|
s->nsector = 65536;
|
|
else {
|
|
int lo = s->nsector;
|
|
int hi = s->hob_nsector;
|
|
|
|
s->nsector = (hi << 8) | lo;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void ide_clear_hob(IDEBus *bus)
|
|
{
|
|
/* any write clears HOB high bit of device control register */
|
|
bus->cmd &= ~(IDE_CTRL_HOB);
|
|
}
|
|
|
|
/* IOport [W]rite [R]egisters */
|
|
enum ATA_IOPORT_WR {
|
|
ATA_IOPORT_WR_DATA = 0,
|
|
ATA_IOPORT_WR_FEATURES = 1,
|
|
ATA_IOPORT_WR_SECTOR_COUNT = 2,
|
|
ATA_IOPORT_WR_SECTOR_NUMBER = 3,
|
|
ATA_IOPORT_WR_CYLINDER_LOW = 4,
|
|
ATA_IOPORT_WR_CYLINDER_HIGH = 5,
|
|
ATA_IOPORT_WR_DEVICE_HEAD = 6,
|
|
ATA_IOPORT_WR_COMMAND = 7,
|
|
ATA_IOPORT_WR_NUM_REGISTERS,
|
|
};
|
|
|
|
const char *ATA_IOPORT_WR_lookup[ATA_IOPORT_WR_NUM_REGISTERS] = {
|
|
[ATA_IOPORT_WR_DATA] = "Data",
|
|
[ATA_IOPORT_WR_FEATURES] = "Features",
|
|
[ATA_IOPORT_WR_SECTOR_COUNT] = "Sector Count",
|
|
[ATA_IOPORT_WR_SECTOR_NUMBER] = "Sector Number",
|
|
[ATA_IOPORT_WR_CYLINDER_LOW] = "Cylinder Low",
|
|
[ATA_IOPORT_WR_CYLINDER_HIGH] = "Cylinder High",
|
|
[ATA_IOPORT_WR_DEVICE_HEAD] = "Device/Head",
|
|
[ATA_IOPORT_WR_COMMAND] = "Command"
|
|
};
|
|
|
|
void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
|
|
{
|
|
IDEBus *bus = opaque;
|
|
IDEState *s = idebus_active_if(bus);
|
|
int reg_num = addr & 7;
|
|
|
|
trace_ide_ioport_write(addr, ATA_IOPORT_WR_lookup[reg_num], val, bus, s);
|
|
|
|
/* ignore writes to command block while busy with previous command */
|
|
if (reg_num != 7 && (s->status & (BUSY_STAT|DRQ_STAT))) {
|
|
return;
|
|
}
|
|
|
|
/* NOTE: Device0 and Device1 both receive incoming register writes.
|
|
* (They're on the same bus! They have to!) */
|
|
|
|
switch (reg_num) {
|
|
case 0:
|
|
break;
|
|
case ATA_IOPORT_WR_FEATURES:
|
|
ide_clear_hob(bus);
|
|
bus->ifs[0].hob_feature = bus->ifs[0].feature;
|
|
bus->ifs[1].hob_feature = bus->ifs[1].feature;
|
|
bus->ifs[0].feature = val;
|
|
bus->ifs[1].feature = val;
|
|
break;
|
|
case ATA_IOPORT_WR_SECTOR_COUNT:
|
|
ide_clear_hob(bus);
|
|
bus->ifs[0].hob_nsector = bus->ifs[0].nsector;
|
|
bus->ifs[1].hob_nsector = bus->ifs[1].nsector;
|
|
bus->ifs[0].nsector = val;
|
|
bus->ifs[1].nsector = val;
|
|
break;
|
|
case ATA_IOPORT_WR_SECTOR_NUMBER:
|
|
ide_clear_hob(bus);
|
|
bus->ifs[0].hob_sector = bus->ifs[0].sector;
|
|
bus->ifs[1].hob_sector = bus->ifs[1].sector;
|
|
bus->ifs[0].sector = val;
|
|
bus->ifs[1].sector = val;
|
|
break;
|
|
case ATA_IOPORT_WR_CYLINDER_LOW:
|
|
ide_clear_hob(bus);
|
|
bus->ifs[0].hob_lcyl = bus->ifs[0].lcyl;
|
|
bus->ifs[1].hob_lcyl = bus->ifs[1].lcyl;
|
|
bus->ifs[0].lcyl = val;
|
|
bus->ifs[1].lcyl = val;
|
|
break;
|
|
case ATA_IOPORT_WR_CYLINDER_HIGH:
|
|
ide_clear_hob(bus);
|
|
bus->ifs[0].hob_hcyl = bus->ifs[0].hcyl;
|
|
bus->ifs[1].hob_hcyl = bus->ifs[1].hcyl;
|
|
bus->ifs[0].hcyl = val;
|
|
bus->ifs[1].hcyl = val;
|
|
break;
|
|
case ATA_IOPORT_WR_DEVICE_HEAD:
|
|
ide_clear_hob(bus);
|
|
bus->ifs[0].select = val | (ATA_DEV_ALWAYS_ON);
|
|
bus->ifs[1].select = val | (ATA_DEV_ALWAYS_ON);
|
|
/* select drive */
|
|
bus->unit = (val & (ATA_DEV_SELECT)) ? 1 : 0;
|
|
break;
|
|
default:
|
|
case ATA_IOPORT_WR_COMMAND:
|
|
ide_clear_hob(bus);
|
|
qemu_irq_lower(bus->irq);
|
|
ide_exec_cmd(bus, val);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void ide_reset(IDEState *s)
|
|
{
|
|
trace_ide_reset(s);
|
|
|
|
if (s->pio_aiocb) {
|
|
blk_aio_cancel(s->pio_aiocb);
|
|
s->pio_aiocb = NULL;
|
|
}
|
|
|
|
if (s->reset_reverts) {
|
|
s->reset_reverts = false;
|
|
s->heads = s->drive_heads;
|
|
s->sectors = s->drive_sectors;
|
|
}
|
|
if (s->drive_kind == IDE_CFATA)
|
|
s->mult_sectors = 0;
|
|
else
|
|
s->mult_sectors = MAX_MULT_SECTORS;
|
|
/* ide regs */
|
|
s->feature = 0;
|
|
s->error = 0;
|
|
s->nsector = 0;
|
|
s->sector = 0;
|
|
s->lcyl = 0;
|
|
s->hcyl = 0;
|
|
|
|
/* lba48 */
|
|
s->hob_feature = 0;
|
|
s->hob_sector = 0;
|
|
s->hob_nsector = 0;
|
|
s->hob_lcyl = 0;
|
|
s->hob_hcyl = 0;
|
|
|
|
s->select = (ATA_DEV_ALWAYS_ON);
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
|
|
s->lba48 = 0;
|
|
|
|
/* ATAPI specific */
|
|
s->sense_key = 0;
|
|
s->asc = 0;
|
|
s->cdrom_changed = 0;
|
|
s->packet_transfer_size = 0;
|
|
s->elementary_transfer_size = 0;
|
|
s->io_buffer_index = 0;
|
|
s->cd_sector_size = 0;
|
|
s->atapi_dma = 0;
|
|
s->tray_locked = 0;
|
|
s->tray_open = 0;
|
|
/* ATA DMA state */
|
|
s->io_buffer_size = 0;
|
|
s->req_nb_sectors = 0;
|
|
|
|
ide_set_signature(s);
|
|
/* init the transfer handler so that 0xffff is returned on data
|
|
accesses */
|
|
s->end_transfer_func = ide_dummy_transfer_stop;
|
|
ide_dummy_transfer_stop(s);
|
|
s->media_changed = 0;
|
|
}
|
|
|
|
static bool cmd_nop(IDEState *s, uint8_t cmd)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static bool cmd_device_reset(IDEState *s, uint8_t cmd)
|
|
{
|
|
/* Halt PIO (in the DRQ phase), then DMA */
|
|
ide_transfer_halt(s);
|
|
ide_cancel_dma_sync(s);
|
|
|
|
/* Reset any PIO commands, reset signature, etc */
|
|
ide_reset(s);
|
|
|
|
/* RESET: ATA8-ACS3 7.10.4 "Normal Outputs";
|
|
* ATA8-ACS3 Table 184 "Device Signatures for Normal Output" */
|
|
s->status = 0x00;
|
|
|
|
/* Do not overwrite status register */
|
|
return false;
|
|
}
|
|
|
|
static bool cmd_data_set_management(IDEState *s, uint8_t cmd)
|
|
{
|
|
switch (s->feature) {
|
|
case DSM_TRIM:
|
|
if (s->blk) {
|
|
ide_sector_start_dma(s, IDE_DMA_TRIM);
|
|
return false;
|
|
}
|
|
break;
|
|
}
|
|
|
|
ide_abort_command(s);
|
|
return true;
|
|
}
|
|
|
|
static bool cmd_identify(IDEState *s, uint8_t cmd)
|
|
{
|
|
if (s->blk && s->drive_kind != IDE_CD) {
|
|
if (s->drive_kind != IDE_CFATA) {
|
|
ide_identify(s);
|
|
} else {
|
|
ide_cfata_identify(s);
|
|
}
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
|
|
ide_set_irq(s->bus);
|
|
return false;
|
|
} else {
|
|
if (s->drive_kind == IDE_CD) {
|
|
ide_set_signature(s);
|
|
}
|
|
ide_abort_command(s);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool cmd_verify(IDEState *s, uint8_t cmd)
|
|
{
|
|
bool lba48 = (cmd == WIN_VERIFY_EXT);
|
|
|
|
/* do sector number check ? */
|
|
ide_cmd_lba48_transform(s, lba48);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool cmd_set_multiple_mode(IDEState *s, uint8_t cmd)
|
|
{
|
|
if (s->drive_kind == IDE_CFATA && s->nsector == 0) {
|
|
/* Disable Read and Write Multiple */
|
|
s->mult_sectors = 0;
|
|
} else if ((s->nsector & 0xff) != 0 &&
|
|
((s->nsector & 0xff) > MAX_MULT_SECTORS ||
|
|
(s->nsector & (s->nsector - 1)) != 0)) {
|
|
ide_abort_command(s);
|
|
} else {
|
|
s->mult_sectors = s->nsector & 0xff;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool cmd_read_multiple(IDEState *s, uint8_t cmd)
|
|
{
|
|
bool lba48 = (cmd == WIN_MULTREAD_EXT);
|
|
|
|
if (!s->blk || !s->mult_sectors) {
|
|
ide_abort_command(s);
|
|
return true;
|
|
}
|
|
|
|
ide_cmd_lba48_transform(s, lba48);
|
|
s->req_nb_sectors = s->mult_sectors;
|
|
ide_sector_read(s);
|
|
return false;
|
|
}
|
|
|
|
static bool cmd_write_multiple(IDEState *s, uint8_t cmd)
|
|
{
|
|
bool lba48 = (cmd == WIN_MULTWRITE_EXT);
|
|
int n;
|
|
|
|
if (!s->blk || !s->mult_sectors) {
|
|
ide_abort_command(s);
|
|
return true;
|
|
}
|
|
|
|
ide_cmd_lba48_transform(s, lba48);
|
|
|
|
s->req_nb_sectors = s->mult_sectors;
|
|
n = MIN(s->nsector, s->req_nb_sectors);
|
|
|
|
s->status = SEEK_STAT | READY_STAT;
|
|
ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
|
|
|
|
s->media_changed = 1;
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool cmd_read_pio(IDEState *s, uint8_t cmd)
|
|
{
|
|
bool lba48 = (cmd == WIN_READ_EXT);
|
|
|
|
if (s->drive_kind == IDE_CD) {
|
|
ide_set_signature(s); /* odd, but ATA4 8.27.5.2 requires it */
|
|
ide_abort_command(s);
|
|
return true;
|
|
}
|
|
|
|
if (!s->blk) {
|
|
ide_abort_command(s);
|
|
return true;
|
|
}
|
|
|
|
ide_cmd_lba48_transform(s, lba48);
|
|
s->req_nb_sectors = 1;
|
|
ide_sector_read(s);
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool cmd_write_pio(IDEState *s, uint8_t cmd)
|
|
{
|
|
bool lba48 = (cmd == WIN_WRITE_EXT);
|
|
|
|
if (!s->blk) {
|
|
ide_abort_command(s);
|
|
return true;
|
|
}
|
|
|
|
ide_cmd_lba48_transform(s, lba48);
|
|
|
|
s->req_nb_sectors = 1;
|
|
s->status = SEEK_STAT | READY_STAT;
|
|
ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
|
|
|
|
s->media_changed = 1;
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool cmd_read_dma(IDEState *s, uint8_t cmd)
|
|
{
|
|
bool lba48 = (cmd == WIN_READDMA_EXT);
|
|
|
|
if (!s->blk) {
|
|
ide_abort_command(s);
|
|
return true;
|
|
}
|
|
|
|
ide_cmd_lba48_transform(s, lba48);
|
|
ide_sector_start_dma(s, IDE_DMA_READ);
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool cmd_write_dma(IDEState *s, uint8_t cmd)
|
|
{
|
|
bool lba48 = (cmd == WIN_WRITEDMA_EXT);
|
|
|
|
if (!s->blk) {
|
|
ide_abort_command(s);
|
|
return true;
|
|
}
|
|
|
|
ide_cmd_lba48_transform(s, lba48);
|
|
ide_sector_start_dma(s, IDE_DMA_WRITE);
|
|
|
|
s->media_changed = 1;
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool cmd_flush_cache(IDEState *s, uint8_t cmd)
|
|
{
|
|
ide_flush_cache(s);
|
|
return false;
|
|
}
|
|
|
|
static bool cmd_seek(IDEState *s, uint8_t cmd)
|
|
{
|
|
/* XXX: Check that seek is within bounds */
|
|
return true;
|
|
}
|
|
|
|
static bool cmd_read_native_max(IDEState *s, uint8_t cmd)
|
|
{
|
|
bool lba48 = (cmd == WIN_READ_NATIVE_MAX_EXT);
|
|
|
|
/* Refuse if no sectors are addressable (e.g. medium not inserted) */
|
|
if (s->nb_sectors == 0) {
|
|
ide_abort_command(s);
|
|
return true;
|
|
}
|
|
|
|
ide_cmd_lba48_transform(s, lba48);
|
|
ide_set_sector(s, s->nb_sectors - 1);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool cmd_check_power_mode(IDEState *s, uint8_t cmd)
|
|
{
|
|
s->nsector = 0xff; /* device active or idle */
|
|
return true;
|
|
}
|
|
|
|
/* INITIALIZE DEVICE PARAMETERS */
|
|
static bool cmd_specify(IDEState *s, uint8_t cmd)
|
|
{
|
|
if (s->blk && s->drive_kind != IDE_CD) {
|
|
s->heads = (s->select & (ATA_DEV_HS)) + 1;
|
|
s->sectors = s->nsector;
|
|
ide_set_irq(s->bus);
|
|
} else {
|
|
ide_abort_command(s);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool cmd_set_features(IDEState *s, uint8_t cmd)
|
|
{
|
|
uint16_t *identify_data;
|
|
|
|
if (!s->blk) {
|
|
ide_abort_command(s);
|
|
return true;
|
|
}
|
|
|
|
/* XXX: valid for CDROM ? */
|
|
switch (s->feature) {
|
|
case 0x02: /* write cache enable */
|
|
blk_set_enable_write_cache(s->blk, true);
|
|
identify_data = (uint16_t *)s->identify_data;
|
|
put_le16(identify_data + 85, (1 << 14) | (1 << 5) | 1);
|
|
return true;
|
|
case 0x82: /* write cache disable */
|
|
blk_set_enable_write_cache(s->blk, false);
|
|
identify_data = (uint16_t *)s->identify_data;
|
|
put_le16(identify_data + 85, (1 << 14) | 1);
|
|
ide_flush_cache(s);
|
|
return false;
|
|
case 0xcc: /* reverting to power-on defaults enable */
|
|
s->reset_reverts = true;
|
|
return true;
|
|
case 0x66: /* reverting to power-on defaults disable */
|
|
s->reset_reverts = false;
|
|
return true;
|
|
case 0xaa: /* read look-ahead enable */
|
|
case 0x55: /* read look-ahead disable */
|
|
case 0x05: /* set advanced power management mode */
|
|
case 0x85: /* disable advanced power management mode */
|
|
case 0x69: /* NOP */
|
|
case 0x67: /* NOP */
|
|
case 0x96: /* NOP */
|
|
case 0x9a: /* NOP */
|
|
case 0x42: /* enable Automatic Acoustic Mode */
|
|
case 0xc2: /* disable Automatic Acoustic Mode */
|
|
return true;
|
|
case 0x03: /* set transfer mode */
|
|
{
|
|
uint8_t val = s->nsector & 0x07;
|
|
identify_data = (uint16_t *)s->identify_data;
|
|
|
|
switch (s->nsector >> 3) {
|
|
case 0x00: /* pio default */
|
|
case 0x01: /* pio mode */
|
|
put_le16(identify_data + 62, 0x07);
|
|
put_le16(identify_data + 63, 0x07);
|
|
put_le16(identify_data + 88, 0x3f);
|
|
break;
|
|
case 0x02: /* sigle word dma mode*/
|
|
put_le16(identify_data + 62, 0x07 | (1 << (val + 8)));
|
|
put_le16(identify_data + 63, 0x07);
|
|
put_le16(identify_data + 88, 0x3f);
|
|
break;
|
|
case 0x04: /* mdma mode */
|
|
put_le16(identify_data + 62, 0x07);
|
|
put_le16(identify_data + 63, 0x07 | (1 << (val + 8)));
|
|
put_le16(identify_data + 88, 0x3f);
|
|
break;
|
|
case 0x08: /* udma mode */
|
|
put_le16(identify_data + 62, 0x07);
|
|
put_le16(identify_data + 63, 0x07);
|
|
put_le16(identify_data + 88, 0x3f | (1 << (val + 8)));
|
|
break;
|
|
default:
|
|
goto abort_cmd;
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
|
|
abort_cmd:
|
|
ide_abort_command(s);
|
|
return true;
|
|
}
|
|
|
|
|
|
/*** ATAPI commands ***/
|
|
|
|
static bool cmd_identify_packet(IDEState *s, uint8_t cmd)
|
|
{
|
|
ide_atapi_identify(s);
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
|
|
ide_set_irq(s->bus);
|
|
return false;
|
|
}
|
|
|
|
/* EXECUTE DEVICE DIAGNOSTIC */
|
|
static bool cmd_exec_dev_diagnostic(IDEState *s, uint8_t cmd)
|
|
{
|
|
/*
|
|
* Clear the device register per the ATA (v6) specification,
|
|
* because ide_set_signature does not clear LBA or drive bits.
|
|
*/
|
|
s->select = (ATA_DEV_ALWAYS_ON);
|
|
ide_set_signature(s);
|
|
|
|
if (s->drive_kind == IDE_CD) {
|
|
s->status = 0; /* ATAPI spec (v6) section 9.10 defines packet
|
|
* devices to return a clear status register
|
|
* with READY_STAT *not* set. */
|
|
s->error = 0x01;
|
|
} else {
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
/* The bits of the error register are not as usual for this command!
|
|
* They are part of the regular output (this is why ERR_STAT isn't set)
|
|
* Device 0 passed, Device 1 passed or not present. */
|
|
s->error = 0x01;
|
|
ide_set_irq(s->bus);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool cmd_packet(IDEState *s, uint8_t cmd)
|
|
{
|
|
/* overlapping commands not supported */
|
|
if (s->feature & 0x02) {
|
|
ide_abort_command(s);
|
|
return true;
|
|
}
|
|
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
s->atapi_dma = s->feature & 1;
|
|
if (s->atapi_dma) {
|
|
s->dma_cmd = IDE_DMA_ATAPI;
|
|
}
|
|
s->nsector = 1;
|
|
ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
|
|
ide_atapi_cmd);
|
|
return false;
|
|
}
|
|
|
|
|
|
/*** CF-ATA commands ***/
|
|
|
|
static bool cmd_cfa_req_ext_error_code(IDEState *s, uint8_t cmd)
|
|
{
|
|
s->error = 0x09; /* miscellaneous error */
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_set_irq(s->bus);
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool cmd_cfa_erase_sectors(IDEState *s, uint8_t cmd)
|
|
{
|
|
/* WIN_SECURITY_FREEZE_LOCK has the same ID as CFA_WEAR_LEVEL and is
|
|
* required for Windows 8 to work with AHCI */
|
|
|
|
if (cmd == CFA_WEAR_LEVEL) {
|
|
s->nsector = 0;
|
|
}
|
|
|
|
if (cmd == CFA_ERASE_SECTORS) {
|
|
s->media_changed = 1;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool cmd_cfa_translate_sector(IDEState *s, uint8_t cmd)
|
|
{
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
|
|
memset(s->io_buffer, 0, 0x200);
|
|
s->io_buffer[0x00] = s->hcyl; /* Cyl MSB */
|
|
s->io_buffer[0x01] = s->lcyl; /* Cyl LSB */
|
|
s->io_buffer[0x02] = s->select; /* Head */
|
|
s->io_buffer[0x03] = s->sector; /* Sector */
|
|
s->io_buffer[0x04] = ide_get_sector(s) >> 16; /* LBA MSB */
|
|
s->io_buffer[0x05] = ide_get_sector(s) >> 8; /* LBA */
|
|
s->io_buffer[0x06] = ide_get_sector(s) >> 0; /* LBA LSB */
|
|
s->io_buffer[0x13] = 0x00; /* Erase flag */
|
|
s->io_buffer[0x18] = 0x00; /* Hot count */
|
|
s->io_buffer[0x19] = 0x00; /* Hot count */
|
|
s->io_buffer[0x1a] = 0x01; /* Hot count */
|
|
|
|
ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
|
|
ide_set_irq(s->bus);
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool cmd_cfa_access_metadata_storage(IDEState *s, uint8_t cmd)
|
|
{
|
|
switch (s->feature) {
|
|
case 0x02: /* Inquiry Metadata Storage */
|
|
ide_cfata_metadata_inquiry(s);
|
|
break;
|
|
case 0x03: /* Read Metadata Storage */
|
|
ide_cfata_metadata_read(s);
|
|
break;
|
|
case 0x04: /* Write Metadata Storage */
|
|
ide_cfata_metadata_write(s);
|
|
break;
|
|
default:
|
|
ide_abort_command(s);
|
|
return true;
|
|
}
|
|
|
|
ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
|
|
s->status = 0x00; /* NOTE: READY is _not_ set */
|
|
ide_set_irq(s->bus);
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool cmd_ibm_sense_condition(IDEState *s, uint8_t cmd)
|
|
{
|
|
switch (s->feature) {
|
|
case 0x01: /* sense temperature in device */
|
|
s->nsector = 0x50; /* +20 C */
|
|
break;
|
|
default:
|
|
ide_abort_command(s);
|
|
return true;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
/*** SMART commands ***/
|
|
|
|
static bool cmd_smart(IDEState *s, uint8_t cmd)
|
|
{
|
|
int n;
|
|
|
|
if (s->hcyl != 0xc2 || s->lcyl != 0x4f) {
|
|
goto abort_cmd;
|
|
}
|
|
|
|
if (!s->smart_enabled && s->feature != SMART_ENABLE) {
|
|
goto abort_cmd;
|
|
}
|
|
|
|
switch (s->feature) {
|
|
case SMART_DISABLE:
|
|
s->smart_enabled = 0;
|
|
return true;
|
|
|
|
case SMART_ENABLE:
|
|
s->smart_enabled = 1;
|
|
return true;
|
|
|
|
case SMART_ATTR_AUTOSAVE:
|
|
switch (s->sector) {
|
|
case 0x00:
|
|
s->smart_autosave = 0;
|
|
break;
|
|
case 0xf1:
|
|
s->smart_autosave = 1;
|
|
break;
|
|
default:
|
|
goto abort_cmd;
|
|
}
|
|
return true;
|
|
|
|
case SMART_STATUS:
|
|
if (!s->smart_errors) {
|
|
s->hcyl = 0xc2;
|
|
s->lcyl = 0x4f;
|
|
} else {
|
|
s->hcyl = 0x2c;
|
|
s->lcyl = 0xf4;
|
|
}
|
|
return true;
|
|
|
|
case SMART_READ_THRESH:
|
|
memset(s->io_buffer, 0, 0x200);
|
|
s->io_buffer[0] = 0x01; /* smart struct version */
|
|
|
|
for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
|
|
s->io_buffer[2 + 0 + (n * 12)] = smart_attributes[n][0];
|
|
s->io_buffer[2 + 1 + (n * 12)] = smart_attributes[n][11];
|
|
}
|
|
|
|
/* checksum */
|
|
for (n = 0; n < 511; n++) {
|
|
s->io_buffer[511] += s->io_buffer[n];
|
|
}
|
|
s->io_buffer[511] = 0x100 - s->io_buffer[511];
|
|
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
|
|
ide_set_irq(s->bus);
|
|
return false;
|
|
|
|
case SMART_READ_DATA:
|
|
memset(s->io_buffer, 0, 0x200);
|
|
s->io_buffer[0] = 0x01; /* smart struct version */
|
|
|
|
for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
|
|
int i;
|
|
for (i = 0; i < 11; i++) {
|
|
s->io_buffer[2 + i + (n * 12)] = smart_attributes[n][i];
|
|
}
|
|
}
|
|
|
|
s->io_buffer[362] = 0x02 | (s->smart_autosave ? 0x80 : 0x00);
|
|
if (s->smart_selftest_count == 0) {
|
|
s->io_buffer[363] = 0;
|
|
} else {
|
|
s->io_buffer[363] =
|
|
s->smart_selftest_data[3 +
|
|
(s->smart_selftest_count - 1) *
|
|
24];
|
|
}
|
|
s->io_buffer[364] = 0x20;
|
|
s->io_buffer[365] = 0x01;
|
|
/* offline data collection capacity: execute + self-test*/
|
|
s->io_buffer[367] = (1 << 4 | 1 << 3 | 1);
|
|
s->io_buffer[368] = 0x03; /* smart capability (1) */
|
|
s->io_buffer[369] = 0x00; /* smart capability (2) */
|
|
s->io_buffer[370] = 0x01; /* error logging supported */
|
|
s->io_buffer[372] = 0x02; /* minutes for poll short test */
|
|
s->io_buffer[373] = 0x36; /* minutes for poll ext test */
|
|
s->io_buffer[374] = 0x01; /* minutes for poll conveyance */
|
|
|
|
for (n = 0; n < 511; n++) {
|
|
s->io_buffer[511] += s->io_buffer[n];
|
|
}
|
|
s->io_buffer[511] = 0x100 - s->io_buffer[511];
|
|
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
|
|
ide_set_irq(s->bus);
|
|
return false;
|
|
|
|
case SMART_READ_LOG:
|
|
switch (s->sector) {
|
|
case 0x01: /* summary smart error log */
|
|
memset(s->io_buffer, 0, 0x200);
|
|
s->io_buffer[0] = 0x01;
|
|
s->io_buffer[1] = 0x00; /* no error entries */
|
|
s->io_buffer[452] = s->smart_errors & 0xff;
|
|
s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8;
|
|
|
|
for (n = 0; n < 511; n++) {
|
|
s->io_buffer[511] += s->io_buffer[n];
|
|
}
|
|
s->io_buffer[511] = 0x100 - s->io_buffer[511];
|
|
break;
|
|
case 0x06: /* smart self test log */
|
|
memset(s->io_buffer, 0, 0x200);
|
|
s->io_buffer[0] = 0x01;
|
|
if (s->smart_selftest_count == 0) {
|
|
s->io_buffer[508] = 0;
|
|
} else {
|
|
s->io_buffer[508] = s->smart_selftest_count;
|
|
for (n = 2; n < 506; n++) {
|
|
s->io_buffer[n] = s->smart_selftest_data[n];
|
|
}
|
|
}
|
|
|
|
for (n = 0; n < 511; n++) {
|
|
s->io_buffer[511] += s->io_buffer[n];
|
|
}
|
|
s->io_buffer[511] = 0x100 - s->io_buffer[511];
|
|
break;
|
|
default:
|
|
goto abort_cmd;
|
|
}
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
|
|
ide_set_irq(s->bus);
|
|
return false;
|
|
|
|
case SMART_EXECUTE_OFFLINE:
|
|
switch (s->sector) {
|
|
case 0: /* off-line routine */
|
|
case 1: /* short self test */
|
|
case 2: /* extended self test */
|
|
s->smart_selftest_count++;
|
|
if (s->smart_selftest_count > 21) {
|
|
s->smart_selftest_count = 1;
|
|
}
|
|
n = 2 + (s->smart_selftest_count - 1) * 24;
|
|
s->smart_selftest_data[n] = s->sector;
|
|
s->smart_selftest_data[n + 1] = 0x00; /* OK and finished */
|
|
s->smart_selftest_data[n + 2] = 0x34; /* hour count lsb */
|
|
s->smart_selftest_data[n + 3] = 0x12; /* hour count msb */
|
|
break;
|
|
default:
|
|
goto abort_cmd;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
abort_cmd:
|
|
ide_abort_command(s);
|
|
return true;
|
|
}
|
|
|
|
#define HD_OK (1u << IDE_HD)
|
|
#define CD_OK (1u << IDE_CD)
|
|
#define CFA_OK (1u << IDE_CFATA)
|
|
#define HD_CFA_OK (HD_OK | CFA_OK)
|
|
#define ALL_OK (HD_OK | CD_OK | CFA_OK)
|
|
|
|
/* Set the Disk Seek Completed status bit during completion */
|
|
#define SET_DSC (1u << 8)
|
|
|
|
/* See ACS-2 T13/2015-D Table B.2 Command codes */
|
|
static const struct {
|
|
/* Returns true if the completion code should be run */
|
|
bool (*handler)(IDEState *s, uint8_t cmd);
|
|
int flags;
|
|
} ide_cmd_table[0x100] = {
|
|
/* NOP not implemented, mandatory for CD */
|
|
[CFA_REQ_EXT_ERROR_CODE] = { cmd_cfa_req_ext_error_code, CFA_OK },
|
|
[WIN_DSM] = { cmd_data_set_management, HD_CFA_OK },
|
|
[WIN_DEVICE_RESET] = { cmd_device_reset, CD_OK },
|
|
[WIN_RECAL] = { cmd_nop, HD_CFA_OK | SET_DSC},
|
|
[WIN_READ] = { cmd_read_pio, ALL_OK },
|
|
[WIN_READ_ONCE] = { cmd_read_pio, HD_CFA_OK },
|
|
[WIN_READ_EXT] = { cmd_read_pio, HD_CFA_OK },
|
|
[WIN_READDMA_EXT] = { cmd_read_dma, HD_CFA_OK },
|
|
[WIN_READ_NATIVE_MAX_EXT] = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
|
|
[WIN_MULTREAD_EXT] = { cmd_read_multiple, HD_CFA_OK },
|
|
[WIN_WRITE] = { cmd_write_pio, HD_CFA_OK },
|
|
[WIN_WRITE_ONCE] = { cmd_write_pio, HD_CFA_OK },
|
|
[WIN_WRITE_EXT] = { cmd_write_pio, HD_CFA_OK },
|
|
[WIN_WRITEDMA_EXT] = { cmd_write_dma, HD_CFA_OK },
|
|
[CFA_WRITE_SECT_WO_ERASE] = { cmd_write_pio, CFA_OK },
|
|
[WIN_MULTWRITE_EXT] = { cmd_write_multiple, HD_CFA_OK },
|
|
[WIN_WRITE_VERIFY] = { cmd_write_pio, HD_CFA_OK },
|
|
[WIN_VERIFY] = { cmd_verify, HD_CFA_OK | SET_DSC },
|
|
[WIN_VERIFY_ONCE] = { cmd_verify, HD_CFA_OK | SET_DSC },
|
|
[WIN_VERIFY_EXT] = { cmd_verify, HD_CFA_OK | SET_DSC },
|
|
[WIN_SEEK] = { cmd_seek, HD_CFA_OK | SET_DSC },
|
|
[CFA_TRANSLATE_SECTOR] = { cmd_cfa_translate_sector, CFA_OK },
|
|
[WIN_DIAGNOSE] = { cmd_exec_dev_diagnostic, ALL_OK },
|
|
[WIN_SPECIFY] = { cmd_specify, HD_CFA_OK | SET_DSC },
|
|
[WIN_STANDBYNOW2] = { cmd_nop, HD_CFA_OK },
|
|
[WIN_IDLEIMMEDIATE2] = { cmd_nop, HD_CFA_OK },
|
|
[WIN_STANDBY2] = { cmd_nop, HD_CFA_OK },
|
|
[WIN_SETIDLE2] = { cmd_nop, HD_CFA_OK },
|
|
[WIN_CHECKPOWERMODE2] = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
|
|
[WIN_SLEEPNOW2] = { cmd_nop, HD_CFA_OK },
|
|
[WIN_PACKETCMD] = { cmd_packet, CD_OK },
|
|
[WIN_PIDENTIFY] = { cmd_identify_packet, CD_OK },
|
|
[WIN_SMART] = { cmd_smart, HD_CFA_OK | SET_DSC },
|
|
[CFA_ACCESS_METADATA_STORAGE] = { cmd_cfa_access_metadata_storage, CFA_OK },
|
|
[CFA_ERASE_SECTORS] = { cmd_cfa_erase_sectors, CFA_OK | SET_DSC },
|
|
[WIN_MULTREAD] = { cmd_read_multiple, HD_CFA_OK },
|
|
[WIN_MULTWRITE] = { cmd_write_multiple, HD_CFA_OK },
|
|
[WIN_SETMULT] = { cmd_set_multiple_mode, HD_CFA_OK | SET_DSC },
|
|
[WIN_READDMA] = { cmd_read_dma, HD_CFA_OK },
|
|
[WIN_READDMA_ONCE] = { cmd_read_dma, HD_CFA_OK },
|
|
[WIN_WRITEDMA] = { cmd_write_dma, HD_CFA_OK },
|
|
[WIN_WRITEDMA_ONCE] = { cmd_write_dma, HD_CFA_OK },
|
|
[CFA_WRITE_MULTI_WO_ERASE] = { cmd_write_multiple, CFA_OK },
|
|
[WIN_STANDBYNOW1] = { cmd_nop, HD_CFA_OK },
|
|
[WIN_IDLEIMMEDIATE] = { cmd_nop, HD_CFA_OK },
|
|
[WIN_STANDBY] = { cmd_nop, HD_CFA_OK },
|
|
[WIN_SETIDLE1] = { cmd_nop, HD_CFA_OK },
|
|
[WIN_CHECKPOWERMODE1] = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
|
|
[WIN_SLEEPNOW1] = { cmd_nop, HD_CFA_OK },
|
|
[WIN_FLUSH_CACHE] = { cmd_flush_cache, ALL_OK },
|
|
[WIN_FLUSH_CACHE_EXT] = { cmd_flush_cache, HD_CFA_OK },
|
|
[WIN_IDENTIFY] = { cmd_identify, ALL_OK },
|
|
[WIN_SETFEATURES] = { cmd_set_features, ALL_OK | SET_DSC },
|
|
[IBM_SENSE_CONDITION] = { cmd_ibm_sense_condition, CFA_OK | SET_DSC },
|
|
[CFA_WEAR_LEVEL] = { cmd_cfa_erase_sectors, HD_CFA_OK | SET_DSC },
|
|
[WIN_READ_NATIVE_MAX] = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
|
|
};
|
|
|
|
static bool ide_cmd_permitted(IDEState *s, uint32_t cmd)
|
|
{
|
|
return cmd < ARRAY_SIZE(ide_cmd_table)
|
|
&& (ide_cmd_table[cmd].flags & (1u << s->drive_kind));
|
|
}
|
|
|
|
void ide_exec_cmd(IDEBus *bus, uint32_t val)
|
|
{
|
|
IDEState *s;
|
|
bool complete;
|
|
|
|
s = idebus_active_if(bus);
|
|
trace_ide_exec_cmd(bus, s, val);
|
|
|
|
/* ignore commands to non existent slave */
|
|
if (s != bus->ifs && !s->blk) {
|
|
return;
|
|
}
|
|
|
|
/* Only RESET is allowed while BSY and/or DRQ are set,
|
|
* and only to ATAPI devices. */
|
|
if (s->status & (BUSY_STAT|DRQ_STAT)) {
|
|
if (val != WIN_DEVICE_RESET || s->drive_kind != IDE_CD) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!ide_cmd_permitted(s, val)) {
|
|
ide_abort_command(s);
|
|
ide_set_irq(s->bus);
|
|
return;
|
|
}
|
|
|
|
s->status = READY_STAT | BUSY_STAT;
|
|
s->error = 0;
|
|
s->io_buffer_offset = 0;
|
|
|
|
complete = ide_cmd_table[val].handler(s, val);
|
|
if (complete) {
|
|
s->status &= ~BUSY_STAT;
|
|
assert(!!s->error == !!(s->status & ERR_STAT));
|
|
|
|
if ((ide_cmd_table[val].flags & SET_DSC) && !s->error) {
|
|
s->status |= SEEK_STAT;
|
|
}
|
|
|
|
ide_cmd_done(s);
|
|
ide_set_irq(s->bus);
|
|
}
|
|
}
|
|
|
|
/* IOport [R]ead [R]egisters */
|
|
enum ATA_IOPORT_RR {
|
|
ATA_IOPORT_RR_DATA = 0,
|
|
ATA_IOPORT_RR_ERROR = 1,
|
|
ATA_IOPORT_RR_SECTOR_COUNT = 2,
|
|
ATA_IOPORT_RR_SECTOR_NUMBER = 3,
|
|
ATA_IOPORT_RR_CYLINDER_LOW = 4,
|
|
ATA_IOPORT_RR_CYLINDER_HIGH = 5,
|
|
ATA_IOPORT_RR_DEVICE_HEAD = 6,
|
|
ATA_IOPORT_RR_STATUS = 7,
|
|
ATA_IOPORT_RR_NUM_REGISTERS,
|
|
};
|
|
|
|
const char *ATA_IOPORT_RR_lookup[ATA_IOPORT_RR_NUM_REGISTERS] = {
|
|
[ATA_IOPORT_RR_DATA] = "Data",
|
|
[ATA_IOPORT_RR_ERROR] = "Error",
|
|
[ATA_IOPORT_RR_SECTOR_COUNT] = "Sector Count",
|
|
[ATA_IOPORT_RR_SECTOR_NUMBER] = "Sector Number",
|
|
[ATA_IOPORT_RR_CYLINDER_LOW] = "Cylinder Low",
|
|
[ATA_IOPORT_RR_CYLINDER_HIGH] = "Cylinder High",
|
|
[ATA_IOPORT_RR_DEVICE_HEAD] = "Device/Head",
|
|
[ATA_IOPORT_RR_STATUS] = "Status"
|
|
};
|
|
|
|
uint32_t ide_ioport_read(void *opaque, uint32_t addr)
|
|
{
|
|
IDEBus *bus = opaque;
|
|
IDEState *s = idebus_active_if(bus);
|
|
uint32_t reg_num;
|
|
int ret, hob;
|
|
|
|
reg_num = addr & 7;
|
|
hob = bus->cmd & (IDE_CTRL_HOB);
|
|
switch (reg_num) {
|
|
case ATA_IOPORT_RR_DATA:
|
|
/*
|
|
* The pre-GRUB Solaris x86 bootloader relies upon inb
|
|
* consuming a word from the drive's sector buffer.
|
|
*/
|
|
ret = ide_data_readw(bus, addr) & 0xff;
|
|
break;
|
|
case ATA_IOPORT_RR_ERROR:
|
|
if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
|
|
(s != bus->ifs && !s->blk)) {
|
|
ret = 0;
|
|
} else if (!hob) {
|
|
ret = s->error;
|
|
} else {
|
|
ret = s->hob_feature;
|
|
}
|
|
break;
|
|
case ATA_IOPORT_RR_SECTOR_COUNT:
|
|
if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
|
|
ret = 0;
|
|
} else if (!hob) {
|
|
ret = s->nsector & 0xff;
|
|
} else {
|
|
ret = s->hob_nsector;
|
|
}
|
|
break;
|
|
case ATA_IOPORT_RR_SECTOR_NUMBER:
|
|
if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
|
|
ret = 0;
|
|
} else if (!hob) {
|
|
ret = s->sector;
|
|
} else {
|
|
ret = s->hob_sector;
|
|
}
|
|
break;
|
|
case ATA_IOPORT_RR_CYLINDER_LOW:
|
|
if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
|
|
ret = 0;
|
|
} else if (!hob) {
|
|
ret = s->lcyl;
|
|
} else {
|
|
ret = s->hob_lcyl;
|
|
}
|
|
break;
|
|
case ATA_IOPORT_RR_CYLINDER_HIGH:
|
|
if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
|
|
ret = 0;
|
|
} else if (!hob) {
|
|
ret = s->hcyl;
|
|
} else {
|
|
ret = s->hob_hcyl;
|
|
}
|
|
break;
|
|
case ATA_IOPORT_RR_DEVICE_HEAD:
|
|
if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
|
|
ret = 0;
|
|
} else {
|
|
ret = s->select;
|
|
}
|
|
break;
|
|
default:
|
|
case ATA_IOPORT_RR_STATUS:
|
|
if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
|
|
(s != bus->ifs && !s->blk)) {
|
|
ret = 0;
|
|
} else {
|
|
ret = s->status;
|
|
}
|
|
qemu_irq_lower(bus->irq);
|
|
break;
|
|
}
|
|
|
|
trace_ide_ioport_read(addr, ATA_IOPORT_RR_lookup[reg_num], ret, bus, s);
|
|
return ret;
|
|
}
|
|
|
|
uint32_t ide_status_read(void *opaque, uint32_t addr)
|
|
{
|
|
IDEBus *bus = opaque;
|
|
IDEState *s = idebus_active_if(bus);
|
|
int ret;
|
|
|
|
if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
|
|
(s != bus->ifs && !s->blk)) {
|
|
ret = 0;
|
|
} else {
|
|
ret = s->status;
|
|
}
|
|
|
|
trace_ide_status_read(addr, ret, bus, s);
|
|
return ret;
|
|
}
|
|
|
|
static void ide_perform_srst(IDEState *s)
|
|
{
|
|
s->status |= BUSY_STAT;
|
|
|
|
/* Halt PIO (Via register state); PIO BH remains scheduled. */
|
|
ide_transfer_halt(s);
|
|
|
|
/* Cancel DMA -- may drain block device and invoke callbacks */
|
|
ide_cancel_dma_sync(s);
|
|
|
|
/* Cancel PIO callback, reset registers/signature, etc */
|
|
ide_reset(s);
|
|
|
|
/* perform diagnostic */
|
|
cmd_exec_dev_diagnostic(s, WIN_DIAGNOSE);
|
|
}
|
|
|
|
static void ide_bus_perform_srst(void *opaque)
|
|
{
|
|
IDEBus *bus = opaque;
|
|
IDEState *s;
|
|
int i;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
s = &bus->ifs[i];
|
|
ide_perform_srst(s);
|
|
}
|
|
|
|
bus->cmd &= ~IDE_CTRL_RESET;
|
|
}
|
|
|
|
void ide_ctrl_write(void *opaque, uint32_t addr, uint32_t val)
|
|
{
|
|
IDEBus *bus = opaque;
|
|
IDEState *s;
|
|
int i;
|
|
|
|
trace_ide_ctrl_write(addr, val, bus);
|
|
|
|
/* Device0 and Device1 each have their own control register,
|
|
* but QEMU models it as just one register in the controller. */
|
|
if (!(bus->cmd & IDE_CTRL_RESET) && (val & IDE_CTRL_RESET)) {
|
|
for (i = 0; i < 2; i++) {
|
|
s = &bus->ifs[i];
|
|
s->status |= BUSY_STAT;
|
|
}
|
|
replay_bh_schedule_oneshot_event(qemu_get_aio_context(),
|
|
ide_bus_perform_srst, bus);
|
|
}
|
|
|
|
bus->cmd = val;
|
|
}
|
|
|
|
/*
|
|
* Returns true if the running PIO transfer is a PIO out (i.e. data is
|
|
* transferred from the device to the guest), false if it's a PIO in
|
|
*/
|
|
static bool ide_is_pio_out(IDEState *s)
|
|
{
|
|
if (s->end_transfer_func == ide_sector_write ||
|
|
s->end_transfer_func == ide_atapi_cmd) {
|
|
return false;
|
|
} else if (s->end_transfer_func == ide_sector_read ||
|
|
s->end_transfer_func == ide_transfer_stop ||
|
|
s->end_transfer_func == ide_atapi_cmd_reply_end ||
|
|
s->end_transfer_func == ide_dummy_transfer_stop) {
|
|
return true;
|
|
}
|
|
|
|
abort();
|
|
}
|
|
|
|
void ide_data_writew(void *opaque, uint32_t addr, uint32_t val)
|
|
{
|
|
IDEBus *bus = opaque;
|
|
IDEState *s = idebus_active_if(bus);
|
|
uint8_t *p;
|
|
|
|
trace_ide_data_writew(addr, val, bus, s);
|
|
|
|
/* PIO data access allowed only when DRQ bit is set. The result of a write
|
|
* during PIO out is indeterminate, just ignore it. */
|
|
if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
|
|
return;
|
|
}
|
|
|
|
p = s->data_ptr;
|
|
if (p + 2 > s->data_end) {
|
|
return;
|
|
}
|
|
|
|
*(uint16_t *)p = le16_to_cpu(val);
|
|
p += 2;
|
|
s->data_ptr = p;
|
|
if (p >= s->data_end) {
|
|
s->status &= ~DRQ_STAT;
|
|
s->end_transfer_func(s);
|
|
}
|
|
}
|
|
|
|
uint32_t ide_data_readw(void *opaque, uint32_t addr)
|
|
{
|
|
IDEBus *bus = opaque;
|
|
IDEState *s = idebus_active_if(bus);
|
|
uint8_t *p;
|
|
int ret;
|
|
|
|
/* PIO data access allowed only when DRQ bit is set. The result of a read
|
|
* during PIO in is indeterminate, return 0 and don't move forward. */
|
|
if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
|
|
return 0;
|
|
}
|
|
|
|
p = s->data_ptr;
|
|
if (p + 2 > s->data_end) {
|
|
return 0;
|
|
}
|
|
|
|
ret = cpu_to_le16(*(uint16_t *)p);
|
|
p += 2;
|
|
s->data_ptr = p;
|
|
if (p >= s->data_end) {
|
|
s->status &= ~DRQ_STAT;
|
|
s->end_transfer_func(s);
|
|
}
|
|
|
|
trace_ide_data_readw(addr, ret, bus, s);
|
|
return ret;
|
|
}
|
|
|
|
void ide_data_writel(void *opaque, uint32_t addr, uint32_t val)
|
|
{
|
|
IDEBus *bus = opaque;
|
|
IDEState *s = idebus_active_if(bus);
|
|
uint8_t *p;
|
|
|
|
trace_ide_data_writel(addr, val, bus, s);
|
|
|
|
/* PIO data access allowed only when DRQ bit is set. The result of a write
|
|
* during PIO out is indeterminate, just ignore it. */
|
|
if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
|
|
return;
|
|
}
|
|
|
|
p = s->data_ptr;
|
|
if (p + 4 > s->data_end) {
|
|
return;
|
|
}
|
|
|
|
*(uint32_t *)p = le32_to_cpu(val);
|
|
p += 4;
|
|
s->data_ptr = p;
|
|
if (p >= s->data_end) {
|
|
s->status &= ~DRQ_STAT;
|
|
s->end_transfer_func(s);
|
|
}
|
|
}
|
|
|
|
uint32_t ide_data_readl(void *opaque, uint32_t addr)
|
|
{
|
|
IDEBus *bus = opaque;
|
|
IDEState *s = idebus_active_if(bus);
|
|
uint8_t *p;
|
|
int ret;
|
|
|
|
/* PIO data access allowed only when DRQ bit is set. The result of a read
|
|
* during PIO in is indeterminate, return 0 and don't move forward. */
|
|
if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
|
|
ret = 0;
|
|
goto out;
|
|
}
|
|
|
|
p = s->data_ptr;
|
|
if (p + 4 > s->data_end) {
|
|
return 0;
|
|
}
|
|
|
|
ret = cpu_to_le32(*(uint32_t *)p);
|
|
p += 4;
|
|
s->data_ptr = p;
|
|
if (p >= s->data_end) {
|
|
s->status &= ~DRQ_STAT;
|
|
s->end_transfer_func(s);
|
|
}
|
|
|
|
out:
|
|
trace_ide_data_readl(addr, ret, bus, s);
|
|
return ret;
|
|
}
|
|
|
|
static void ide_dummy_transfer_stop(IDEState *s)
|
|
{
|
|
s->data_ptr = s->io_buffer;
|
|
s->data_end = s->io_buffer;
|
|
s->io_buffer[0] = 0xff;
|
|
s->io_buffer[1] = 0xff;
|
|
s->io_buffer[2] = 0xff;
|
|
s->io_buffer[3] = 0xff;
|
|
}
|
|
|
|
void ide_bus_reset(IDEBus *bus)
|
|
{
|
|
bus->unit = 0;
|
|
bus->cmd = 0;
|
|
ide_reset(&bus->ifs[0]);
|
|
ide_reset(&bus->ifs[1]);
|
|
ide_clear_hob(bus);
|
|
|
|
/* pending async DMA */
|
|
if (bus->dma->aiocb) {
|
|
trace_ide_bus_reset_aio();
|
|
blk_aio_cancel(bus->dma->aiocb);
|
|
bus->dma->aiocb = NULL;
|
|
}
|
|
|
|
/* reset dma provider too */
|
|
if (bus->dma->ops->reset) {
|
|
bus->dma->ops->reset(bus->dma);
|
|
}
|
|
}
|
|
|
|
static bool ide_cd_is_tray_open(void *opaque)
|
|
{
|
|
return ((IDEState *)opaque)->tray_open;
|
|
}
|
|
|
|
static bool ide_cd_is_medium_locked(void *opaque)
|
|
{
|
|
return ((IDEState *)opaque)->tray_locked;
|
|
}
|
|
|
|
static void ide_resize_cb(void *opaque)
|
|
{
|
|
IDEState *s = opaque;
|
|
uint64_t nb_sectors;
|
|
|
|
if (!s->identify_set) {
|
|
return;
|
|
}
|
|
|
|
blk_get_geometry(s->blk, &nb_sectors);
|
|
s->nb_sectors = nb_sectors;
|
|
|
|
/* Update the identify data buffer. */
|
|
if (s->drive_kind == IDE_CFATA) {
|
|
ide_cfata_identify_size(s);
|
|
} else {
|
|
/* IDE_CD uses a different set of callbacks entirely. */
|
|
assert(s->drive_kind != IDE_CD);
|
|
ide_identify_size(s);
|
|
}
|
|
}
|
|
|
|
static const BlockDevOps ide_cd_block_ops = {
|
|
.change_media_cb = ide_cd_change_cb,
|
|
.eject_request_cb = ide_cd_eject_request_cb,
|
|
.is_tray_open = ide_cd_is_tray_open,
|
|
.is_medium_locked = ide_cd_is_medium_locked,
|
|
};
|
|
|
|
static const BlockDevOps ide_hd_block_ops = {
|
|
.resize_cb = ide_resize_cb,
|
|
};
|
|
|
|
int ide_init_drive(IDEState *s, BlockBackend *blk, IDEDriveKind kind,
|
|
const char *version, const char *serial, const char *model,
|
|
uint64_t wwn,
|
|
uint32_t cylinders, uint32_t heads, uint32_t secs,
|
|
int chs_trans, Error **errp)
|
|
{
|
|
uint64_t nb_sectors;
|
|
|
|
s->blk = blk;
|
|
s->drive_kind = kind;
|
|
|
|
blk_get_geometry(blk, &nb_sectors);
|
|
s->cylinders = cylinders;
|
|
s->heads = s->drive_heads = heads;
|
|
s->sectors = s->drive_sectors = secs;
|
|
s->chs_trans = chs_trans;
|
|
s->nb_sectors = nb_sectors;
|
|
s->wwn = wwn;
|
|
/* The SMART values should be preserved across power cycles
|
|
but they aren't. */
|
|
s->smart_enabled = 1;
|
|
s->smart_autosave = 1;
|
|
s->smart_errors = 0;
|
|
s->smart_selftest_count = 0;
|
|
if (kind == IDE_CD) {
|
|
blk_set_dev_ops(blk, &ide_cd_block_ops, s);
|
|
} else {
|
|
if (!blk_is_inserted(s->blk)) {
|
|
error_setg(errp, "Device needs media, but drive is empty");
|
|
return -1;
|
|
}
|
|
if (!blk_is_writable(blk)) {
|
|
error_setg(errp, "Can't use a read-only drive");
|
|
return -1;
|
|
}
|
|
blk_set_dev_ops(blk, &ide_hd_block_ops, s);
|
|
}
|
|
if (serial) {
|
|
pstrcpy(s->drive_serial_str, sizeof(s->drive_serial_str), serial);
|
|
} else {
|
|
snprintf(s->drive_serial_str, sizeof(s->drive_serial_str),
|
|
"QM%05d", s->drive_serial);
|
|
}
|
|
if (model) {
|
|
pstrcpy(s->drive_model_str, sizeof(s->drive_model_str), model);
|
|
} else {
|
|
switch (kind) {
|
|
case IDE_CD:
|
|
strcpy(s->drive_model_str, "QEMU DVD-ROM");
|
|
break;
|
|
case IDE_CFATA:
|
|
strcpy(s->drive_model_str, "QEMU MICRODRIVE");
|
|
break;
|
|
default:
|
|
strcpy(s->drive_model_str, "QEMU HARDDISK");
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (version) {
|
|
pstrcpy(s->version, sizeof(s->version), version);
|
|
} else {
|
|
pstrcpy(s->version, sizeof(s->version), qemu_hw_version());
|
|
}
|
|
|
|
ide_reset(s);
|
|
blk_iostatus_enable(blk);
|
|
return 0;
|
|
}
|
|
|
|
static void ide_init1(IDEBus *bus, int unit)
|
|
{
|
|
static int drive_serial = 1;
|
|
IDEState *s = &bus->ifs[unit];
|
|
|
|
s->bus = bus;
|
|
s->unit = unit;
|
|
s->drive_serial = drive_serial++;
|
|
/* we need at least 2k alignment for accessing CDROMs using O_DIRECT */
|
|
s->io_buffer_total_len = IDE_DMA_BUF_SECTORS*512 + 4;
|
|
s->io_buffer = qemu_memalign(2048, s->io_buffer_total_len);
|
|
memset(s->io_buffer, 0, s->io_buffer_total_len);
|
|
|
|
s->smart_selftest_data = blk_blockalign(s->blk, 512);
|
|
memset(s->smart_selftest_data, 0, 512);
|
|
|
|
s->sector_write_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
|
|
ide_sector_write_timer_cb, s);
|
|
}
|
|
|
|
static int ide_nop_int(const IDEDMA *dma, bool is_write)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void ide_nop(const IDEDMA *dma)
|
|
{
|
|
}
|
|
|
|
static int32_t ide_nop_int32(const IDEDMA *dma, int32_t l)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static const IDEDMAOps ide_dma_nop_ops = {
|
|
.prepare_buf = ide_nop_int32,
|
|
.restart_dma = ide_nop,
|
|
.rw_buf = ide_nop_int,
|
|
};
|
|
|
|
static void ide_restart_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
|
|
{
|
|
s->unit = s->bus->retry_unit;
|
|
ide_set_sector(s, s->bus->retry_sector_num);
|
|
s->nsector = s->bus->retry_nsector;
|
|
s->bus->dma->ops->restart_dma(s->bus->dma);
|
|
s->io_buffer_size = 0;
|
|
s->dma_cmd = dma_cmd;
|
|
ide_start_dma(s, ide_dma_cb);
|
|
}
|
|
|
|
static void ide_restart_bh(void *opaque)
|
|
{
|
|
IDEBus *bus = opaque;
|
|
IDEState *s;
|
|
bool is_read;
|
|
int error_status;
|
|
|
|
qemu_bh_delete(bus->bh);
|
|
bus->bh = NULL;
|
|
|
|
error_status = bus->error_status;
|
|
if (bus->error_status == 0) {
|
|
return;
|
|
}
|
|
|
|
s = idebus_active_if(bus);
|
|
is_read = (bus->error_status & IDE_RETRY_READ) != 0;
|
|
|
|
/* The error status must be cleared before resubmitting the request: The
|
|
* request may fail again, and this case can only be distinguished if the
|
|
* called function can set a new error status. */
|
|
bus->error_status = 0;
|
|
|
|
/* The HBA has generically asked to be kicked on retry */
|
|
if (error_status & IDE_RETRY_HBA) {
|
|
if (s->bus->dma->ops->restart) {
|
|
s->bus->dma->ops->restart(s->bus->dma);
|
|
}
|
|
} else if (IS_IDE_RETRY_DMA(error_status)) {
|
|
if (error_status & IDE_RETRY_TRIM) {
|
|
ide_restart_dma(s, IDE_DMA_TRIM);
|
|
} else {
|
|
ide_restart_dma(s, is_read ? IDE_DMA_READ : IDE_DMA_WRITE);
|
|
}
|
|
} else if (IS_IDE_RETRY_PIO(error_status)) {
|
|
if (is_read) {
|
|
ide_sector_read(s);
|
|
} else {
|
|
ide_sector_write(s);
|
|
}
|
|
} else if (error_status & IDE_RETRY_FLUSH) {
|
|
ide_flush_cache(s);
|
|
} else if (IS_IDE_RETRY_ATAPI(error_status)) {
|
|
assert(s->end_transfer_func == ide_atapi_cmd);
|
|
ide_atapi_dma_restart(s);
|
|
} else {
|
|
abort();
|
|
}
|
|
}
|
|
|
|
static void ide_restart_cb(void *opaque, bool running, RunState state)
|
|
{
|
|
IDEBus *bus = opaque;
|
|
|
|
if (!running)
|
|
return;
|
|
|
|
if (!bus->bh) {
|
|
bus->bh = qemu_bh_new(ide_restart_bh, bus);
|
|
qemu_bh_schedule(bus->bh);
|
|
}
|
|
}
|
|
|
|
void ide_register_restart_cb(IDEBus *bus)
|
|
{
|
|
if (bus->dma->ops->restart_dma) {
|
|
bus->vmstate = qemu_add_vm_change_state_handler(ide_restart_cb, bus);
|
|
}
|
|
}
|
|
|
|
static IDEDMA ide_dma_nop = {
|
|
.ops = &ide_dma_nop_ops,
|
|
.aiocb = NULL,
|
|
};
|
|
|
|
void ide_init2(IDEBus *bus, qemu_irq irq)
|
|
{
|
|
int i;
|
|
|
|
for(i = 0; i < 2; i++) {
|
|
ide_init1(bus, i);
|
|
ide_reset(&bus->ifs[i]);
|
|
}
|
|
bus->irq = irq;
|
|
bus->dma = &ide_dma_nop;
|
|
}
|
|
|
|
void ide_exit(IDEState *s)
|
|
{
|
|
timer_free(s->sector_write_timer);
|
|
qemu_vfree(s->smart_selftest_data);
|
|
qemu_vfree(s->io_buffer);
|
|
}
|
|
|
|
static bool is_identify_set(void *opaque, int version_id)
|
|
{
|
|
IDEState *s = opaque;
|
|
|
|
return s->identify_set != 0;
|
|
}
|
|
|
|
static EndTransferFunc* transfer_end_table[] = {
|
|
ide_sector_read,
|
|
ide_sector_write,
|
|
ide_transfer_stop,
|
|
ide_atapi_cmd_reply_end,
|
|
ide_atapi_cmd,
|
|
ide_dummy_transfer_stop,
|
|
};
|
|
|
|
static int transfer_end_table_idx(EndTransferFunc *fn)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(transfer_end_table); i++)
|
|
if (transfer_end_table[i] == fn)
|
|
return i;
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int ide_drive_post_load(void *opaque, int version_id)
|
|
{
|
|
IDEState *s = opaque;
|
|
|
|
if (s->blk && s->identify_set) {
|
|
blk_set_enable_write_cache(s->blk, !!(s->identify_data[85] & (1 << 5)));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int ide_drive_pio_post_load(void *opaque, int version_id)
|
|
{
|
|
IDEState *s = opaque;
|
|
|
|
if (s->end_transfer_fn_idx >= ARRAY_SIZE(transfer_end_table)) {
|
|
return -EINVAL;
|
|
}
|
|
s->end_transfer_func = transfer_end_table[s->end_transfer_fn_idx];
|
|
s->data_ptr = s->io_buffer + s->cur_io_buffer_offset;
|
|
s->data_end = s->data_ptr + s->cur_io_buffer_len;
|
|
s->atapi_dma = s->feature & 1; /* as per cmd_packet */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ide_drive_pio_pre_save(void *opaque)
|
|
{
|
|
IDEState *s = opaque;
|
|
int idx;
|
|
|
|
s->cur_io_buffer_offset = s->data_ptr - s->io_buffer;
|
|
s->cur_io_buffer_len = s->data_end - s->data_ptr;
|
|
|
|
idx = transfer_end_table_idx(s->end_transfer_func);
|
|
if (idx == -1) {
|
|
fprintf(stderr, "%s: invalid end_transfer_func for DRQ_STAT\n",
|
|
__func__);
|
|
s->end_transfer_fn_idx = 2;
|
|
} else {
|
|
s->end_transfer_fn_idx = idx;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static bool ide_drive_pio_state_needed(void *opaque)
|
|
{
|
|
IDEState *s = opaque;
|
|
|
|
return ((s->status & DRQ_STAT) != 0)
|
|
|| (s->bus->error_status & IDE_RETRY_PIO);
|
|
}
|
|
|
|
static bool ide_tray_state_needed(void *opaque)
|
|
{
|
|
IDEState *s = opaque;
|
|
|
|
return s->tray_open || s->tray_locked;
|
|
}
|
|
|
|
static bool ide_atapi_gesn_needed(void *opaque)
|
|
{
|
|
IDEState *s = opaque;
|
|
|
|
return s->events.new_media || s->events.eject_request;
|
|
}
|
|
|
|
static bool ide_error_needed(void *opaque)
|
|
{
|
|
IDEBus *bus = opaque;
|
|
|
|
return (bus->error_status != 0);
|
|
}
|
|
|
|
/* Fields for GET_EVENT_STATUS_NOTIFICATION ATAPI command */
|
|
static const VMStateDescription vmstate_ide_atapi_gesn_state = {
|
|
.name ="ide_drive/atapi/gesn_state",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.needed = ide_atapi_gesn_needed,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_BOOL(events.new_media, IDEState),
|
|
VMSTATE_BOOL(events.eject_request, IDEState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
static const VMStateDescription vmstate_ide_tray_state = {
|
|
.name = "ide_drive/tray_state",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.needed = ide_tray_state_needed,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_BOOL(tray_open, IDEState),
|
|
VMSTATE_BOOL(tray_locked, IDEState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
static const VMStateDescription vmstate_ide_drive_pio_state = {
|
|
.name = "ide_drive/pio_state",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.pre_save = ide_drive_pio_pre_save,
|
|
.post_load = ide_drive_pio_post_load,
|
|
.needed = ide_drive_pio_state_needed,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_INT32(req_nb_sectors, IDEState),
|
|
VMSTATE_VARRAY_INT32(io_buffer, IDEState, io_buffer_total_len, 1,
|
|
vmstate_info_uint8, uint8_t),
|
|
VMSTATE_INT32(cur_io_buffer_offset, IDEState),
|
|
VMSTATE_INT32(cur_io_buffer_len, IDEState),
|
|
VMSTATE_UINT8(end_transfer_fn_idx, IDEState),
|
|
VMSTATE_INT32(elementary_transfer_size, IDEState),
|
|
VMSTATE_INT32(packet_transfer_size, IDEState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
const VMStateDescription vmstate_ide_drive = {
|
|
.name = "ide_drive",
|
|
.version_id = 3,
|
|
.minimum_version_id = 0,
|
|
.post_load = ide_drive_post_load,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_INT32(mult_sectors, IDEState),
|
|
VMSTATE_INT32(identify_set, IDEState),
|
|
VMSTATE_BUFFER_TEST(identify_data, IDEState, is_identify_set),
|
|
VMSTATE_UINT8(feature, IDEState),
|
|
VMSTATE_UINT8(error, IDEState),
|
|
VMSTATE_UINT32(nsector, IDEState),
|
|
VMSTATE_UINT8(sector, IDEState),
|
|
VMSTATE_UINT8(lcyl, IDEState),
|
|
VMSTATE_UINT8(hcyl, IDEState),
|
|
VMSTATE_UINT8(hob_feature, IDEState),
|
|
VMSTATE_UINT8(hob_sector, IDEState),
|
|
VMSTATE_UINT8(hob_nsector, IDEState),
|
|
VMSTATE_UINT8(hob_lcyl, IDEState),
|
|
VMSTATE_UINT8(hob_hcyl, IDEState),
|
|
VMSTATE_UINT8(select, IDEState),
|
|
VMSTATE_UINT8(status, IDEState),
|
|
VMSTATE_UINT8(lba48, IDEState),
|
|
VMSTATE_UINT8(sense_key, IDEState),
|
|
VMSTATE_UINT8(asc, IDEState),
|
|
VMSTATE_UINT8_V(cdrom_changed, IDEState, 3),
|
|
VMSTATE_END_OF_LIST()
|
|
},
|
|
.subsections = (const VMStateDescription*[]) {
|
|
&vmstate_ide_drive_pio_state,
|
|
&vmstate_ide_tray_state,
|
|
&vmstate_ide_atapi_gesn_state,
|
|
NULL
|
|
}
|
|
};
|
|
|
|
static const VMStateDescription vmstate_ide_error_status = {
|
|
.name ="ide_bus/error",
|
|
.version_id = 2,
|
|
.minimum_version_id = 1,
|
|
.needed = ide_error_needed,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_INT32(error_status, IDEBus),
|
|
VMSTATE_INT64_V(retry_sector_num, IDEBus, 2),
|
|
VMSTATE_UINT32_V(retry_nsector, IDEBus, 2),
|
|
VMSTATE_UINT8_V(retry_unit, IDEBus, 2),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
const VMStateDescription vmstate_ide_bus = {
|
|
.name = "ide_bus",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_UINT8(cmd, IDEBus),
|
|
VMSTATE_UINT8(unit, IDEBus),
|
|
VMSTATE_END_OF_LIST()
|
|
},
|
|
.subsections = (const VMStateDescription*[]) {
|
|
&vmstate_ide_error_status,
|
|
NULL
|
|
}
|
|
};
|
|
|
|
void ide_drive_get(DriveInfo **hd, int n)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
hd[i] = drive_get_by_index(IF_IDE, i);
|
|
}
|
|
}
|