/* * ide bus support for qdev. * * Copyright (c) 2009 Gerd Hoffmann <kraxel@redhat.com> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see <http://www.gnu.org/licenses/>. */ #include <hw/hw.h> #include "sysemu/dma.h" #include "qemu/error-report.h" #include <hw/ide/internal.h> #include "sysemu/block-backend.h" #include "sysemu/blockdev.h" #include "hw/block/block.h" #include "sysemu/sysemu.h" #include "qapi/visitor.h" /* --------------------------------- */ static char *idebus_get_fw_dev_path(DeviceState *dev); static Property ide_props[] = { DEFINE_PROP_UINT32("unit", IDEDevice, unit, -1), DEFINE_PROP_END_OF_LIST(), }; static void ide_bus_class_init(ObjectClass *klass, void *data) { BusClass *k = BUS_CLASS(klass); k->get_fw_dev_path = idebus_get_fw_dev_path; } static const TypeInfo ide_bus_info = { .name = TYPE_IDE_BUS, .parent = TYPE_BUS, .instance_size = sizeof(IDEBus), .class_init = ide_bus_class_init, }; void ide_bus_new(IDEBus *idebus, size_t idebus_size, DeviceState *dev, int bus_id, int max_units) { qbus_create_inplace(idebus, idebus_size, TYPE_IDE_BUS, dev, NULL); idebus->bus_id = bus_id; idebus->max_units = max_units; } static char *idebus_get_fw_dev_path(DeviceState *dev) { char path[30]; snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev), ((IDEBus*)dev->parent_bus)->bus_id); return g_strdup(path); } static int ide_qdev_init(DeviceState *qdev) { IDEDevice *dev = IDE_DEVICE(qdev); IDEDeviceClass *dc = IDE_DEVICE_GET_CLASS(dev); IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus); if (!dev->conf.blk) { error_report("No drive specified"); goto err; } if (dev->unit == -1) { dev->unit = bus->master ? 1 : 0; } if (dev->unit >= bus->max_units) { error_report("Can't create IDE unit %d, bus supports only %d units", dev->unit, bus->max_units); goto err; } switch (dev->unit) { case 0: if (bus->master) { error_report("IDE unit %d is in use", dev->unit); goto err; } bus->master = dev; break; case 1: if (bus->slave) { error_report("IDE unit %d is in use", dev->unit); goto err; } bus->slave = dev; break; default: error_report("Invalid IDE unit %d", dev->unit); goto err; } return dc->init(dev); err: return -1; } IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive) { DeviceState *dev; dev = qdev_create(&bus->qbus, drive->media_cd ? "ide-cd" : "ide-hd"); qdev_prop_set_uint32(dev, "unit", unit); qdev_prop_set_drive_nofail(dev, "drive", blk_by_legacy_dinfo(drive)); qdev_init_nofail(dev); return DO_UPCAST(IDEDevice, qdev, dev); } int ide_get_geometry(BusState *bus, int unit, int16_t *cyls, int8_t *heads, int8_t *secs) { IDEState *s = &DO_UPCAST(IDEBus, qbus, bus)->ifs[unit]; if (s->drive_kind != IDE_HD || !s->blk) { return -1; } *cyls = s->cylinders; *heads = s->heads; *secs = s->sectors; return 0; } int ide_get_bios_chs_trans(BusState *bus, int unit) { return DO_UPCAST(IDEBus, qbus, bus)->ifs[unit].chs_trans; } /* --------------------------------- */ typedef struct IDEDrive { IDEDevice dev; } IDEDrive; static int ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind) { IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus); IDEState *s = bus->ifs + dev->unit; Error *err = NULL; if (dev->conf.discard_granularity == -1) { dev->conf.discard_granularity = 512; } else if (dev->conf.discard_granularity && dev->conf.discard_granularity != 512) { error_report("discard_granularity must be 512 for ide"); return -1; } blkconf_blocksizes(&dev->conf); if (dev->conf.logical_block_size != 512) { error_report("logical_block_size must be 512 for IDE"); return -1; } blkconf_serial(&dev->conf, &dev->serial); if (kind != IDE_CD) { blkconf_geometry(&dev->conf, &dev->chs_trans, 65536, 16, 255, &err); if (err) { error_report_err(err); return -1; } } if (ide_init_drive(s, dev->conf.blk, kind, dev->version, dev->serial, dev->model, dev->wwn, dev->conf.cyls, dev->conf.heads, dev->conf.secs, dev->chs_trans) < 0) { return -1; } if (!dev->version) { dev->version = g_strdup(s->version); } if (!dev->serial) { dev->serial = g_strdup(s->drive_serial_str); } add_boot_device_path(dev->conf.bootindex, &dev->qdev, dev->unit ? "/disk@1" : "/disk@0"); return 0; } static void ide_dev_get_bootindex(Object *obj, Visitor *v, void *opaque, const char *name, Error **errp) { IDEDevice *d = IDE_DEVICE(obj); visit_type_int32(v, &d->conf.bootindex, name, errp); } static void ide_dev_set_bootindex(Object *obj, Visitor *v, void *opaque, const char *name, Error **errp) { IDEDevice *d = IDE_DEVICE(obj); int32_t boot_index; Error *local_err = NULL; visit_type_int32(v, &boot_index, name, &local_err); if (local_err) { goto out; } /* check whether bootindex is present in fw_boot_order list */ check_boot_index(boot_index, &local_err); if (local_err) { goto out; } /* change bootindex to a new one */ d->conf.bootindex = boot_index; if (d->unit != -1) { add_boot_device_path(d->conf.bootindex, &d->qdev, d->unit ? "/disk@1" : "/disk@0"); } out: if (local_err) { error_propagate(errp, local_err); } } static void ide_dev_instance_init(Object *obj) { object_property_add(obj, "bootindex", "int32", ide_dev_get_bootindex, ide_dev_set_bootindex, NULL, NULL, NULL); object_property_set_int(obj, -1, "bootindex", NULL); } static int ide_hd_initfn(IDEDevice *dev) { return ide_dev_initfn(dev, IDE_HD); } static int ide_cd_initfn(IDEDevice *dev) { return ide_dev_initfn(dev, IDE_CD); } static int ide_drive_initfn(IDEDevice *dev) { DriveInfo *dinfo = blk_legacy_dinfo(dev->conf.blk); return ide_dev_initfn(dev, dinfo && dinfo->media_cd ? IDE_CD : IDE_HD); } #define DEFINE_IDE_DEV_PROPERTIES() \ DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), \ DEFINE_PROP_STRING("ver", IDEDrive, dev.version), \ DEFINE_PROP_UINT64("wwn", IDEDrive, dev.wwn, 0), \ DEFINE_PROP_STRING("serial", IDEDrive, dev.serial),\ DEFINE_PROP_STRING("model", IDEDrive, dev.model) static Property ide_hd_properties[] = { DEFINE_IDE_DEV_PROPERTIES(), DEFINE_BLOCK_CHS_PROPERTIES(IDEDrive, dev.conf), DEFINE_PROP_BIOS_CHS_TRANS("bios-chs-trans", IDEDrive, dev.chs_trans, BIOS_ATA_TRANSLATION_AUTO), DEFINE_PROP_END_OF_LIST(), }; static void ide_hd_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); IDEDeviceClass *k = IDE_DEVICE_CLASS(klass); k->init = ide_hd_initfn; dc->fw_name = "drive"; dc->desc = "virtual IDE disk"; dc->props = ide_hd_properties; } static const TypeInfo ide_hd_info = { .name = "ide-hd", .parent = TYPE_IDE_DEVICE, .instance_size = sizeof(IDEDrive), .class_init = ide_hd_class_init, }; static Property ide_cd_properties[] = { DEFINE_IDE_DEV_PROPERTIES(), DEFINE_PROP_END_OF_LIST(), }; static void ide_cd_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); IDEDeviceClass *k = IDE_DEVICE_CLASS(klass); k->init = ide_cd_initfn; dc->fw_name = "drive"; dc->desc = "virtual IDE CD-ROM"; dc->props = ide_cd_properties; } static const TypeInfo ide_cd_info = { .name = "ide-cd", .parent = TYPE_IDE_DEVICE, .instance_size = sizeof(IDEDrive), .class_init = ide_cd_class_init, }; static Property ide_drive_properties[] = { DEFINE_IDE_DEV_PROPERTIES(), DEFINE_PROP_END_OF_LIST(), }; static void ide_drive_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); IDEDeviceClass *k = IDE_DEVICE_CLASS(klass); k->init = ide_drive_initfn; dc->fw_name = "drive"; dc->desc = "virtual IDE disk or CD-ROM (legacy)"; dc->props = ide_drive_properties; } static const TypeInfo ide_drive_info = { .name = "ide-drive", .parent = TYPE_IDE_DEVICE, .instance_size = sizeof(IDEDrive), .class_init = ide_drive_class_init, }; static void ide_device_class_init(ObjectClass *klass, void *data) { DeviceClass *k = DEVICE_CLASS(klass); k->init = ide_qdev_init; set_bit(DEVICE_CATEGORY_STORAGE, k->categories); k->bus_type = TYPE_IDE_BUS; k->props = ide_props; } static const TypeInfo ide_device_type_info = { .name = TYPE_IDE_DEVICE, .parent = TYPE_DEVICE, .instance_size = sizeof(IDEDevice), .abstract = true, .class_size = sizeof(IDEDeviceClass), .class_init = ide_device_class_init, .instance_init = ide_dev_instance_init, }; static void ide_register_types(void) { type_register_static(&ide_bus_info); type_register_static(&ide_hd_info); type_register_static(&ide_cd_info); type_register_static(&ide_drive_info); type_register_static(&ide_device_type_info); } type_init(ide_register_types)