c0897e0cb9
Drives defined with -drive if=ide get get created along with the IDE controller, inside machine->init(). That's before cmos_init(). Drives defined with -device get created during generic device init. That's after cmos_init(). Because of that, CMOS has no information on them (type, geometry, translation). Older versions of Windows such as XP reportedly choke on that. Split off the part of CMOS initialization that needs to know about -device devices, and turn it into a reset handler, so it runs after device creation. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
149 lines
4 KiB
C
149 lines
4 KiB
C
/*
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* ide bus support for qdev.
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*
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* Copyright (c) 2009 Gerd Hoffmann <kraxel@redhat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <hw/hw.h>
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#include "dma.h"
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#include <hw/ide/internal.h>
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/* --------------------------------- */
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static struct BusInfo ide_bus_info = {
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.name = "IDE",
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.size = sizeof(IDEBus),
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};
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void ide_bus_new(IDEBus *idebus, DeviceState *dev)
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{
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qbus_create_inplace(&idebus->qbus, &ide_bus_info, dev, NULL);
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}
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static int ide_qdev_init(DeviceState *qdev, DeviceInfo *base)
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{
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IDEDevice *dev = DO_UPCAST(IDEDevice, qdev, qdev);
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IDEDeviceInfo *info = DO_UPCAST(IDEDeviceInfo, qdev, base);
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IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
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if (!dev->conf.bs) {
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fprintf(stderr, "%s: no drive specified\n", qdev->info->name);
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goto err;
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}
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if (dev->unit == -1) {
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dev->unit = bus->master ? 1 : 0;
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}
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switch (dev->unit) {
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case 0:
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if (bus->master) {
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fprintf(stderr, "ide: tried to assign master twice\n");
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goto err;
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}
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bus->master = dev;
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break;
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case 1:
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if (bus->slave) {
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fprintf(stderr, "ide: tried to assign slave twice\n");
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goto err;
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}
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bus->slave = dev;
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break;
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default:
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goto err;
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}
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return info->init(dev);
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err:
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return -1;
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}
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static void ide_qdev_register(IDEDeviceInfo *info)
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{
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info->qdev.init = ide_qdev_init;
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info->qdev.bus_info = &ide_bus_info;
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qdev_register(&info->qdev);
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}
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IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
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{
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DeviceState *dev;
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dev = qdev_create(&bus->qbus, "ide-drive");
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qdev_prop_set_uint32(dev, "unit", unit);
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qdev_prop_set_drive_nofail(dev, "drive", drive->bdrv);
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qdev_init_nofail(dev);
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return DO_UPCAST(IDEDevice, qdev, dev);
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}
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void ide_get_bs(BlockDriverState *bs[], BusState *qbus)
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{
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IDEBus *bus = DO_UPCAST(IDEBus, qbus, qbus);
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bs[0] = bus->master ? bus->master->conf.bs : NULL;
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bs[1] = bus->slave ? bus->slave->conf.bs : NULL;
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}
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/* --------------------------------- */
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typedef struct IDEDrive {
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IDEDevice dev;
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} IDEDrive;
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static int ide_drive_initfn(IDEDevice *dev)
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{
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IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus);
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IDEState *s = bus->ifs + dev->unit;
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const char *serial;
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DriveInfo *dinfo;
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serial = dev->serial;
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if (!serial) {
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/* try to fall back to value set with legacy -drive serial=... */
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dinfo = drive_get_by_blockdev(dev->conf.bs);
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if (*dinfo->serial) {
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serial = dinfo->serial;
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}
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}
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ide_init_drive(s, dev->conf.bs, dev->version, serial);
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if (!dev->version) {
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dev->version = qemu_strdup(s->version);
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}
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if (!dev->serial) {
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dev->serial = qemu_strdup(s->drive_serial_str);
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}
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return 0;
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}
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static IDEDeviceInfo ide_drive_info = {
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.qdev.name = "ide-drive",
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.qdev.size = sizeof(IDEDrive),
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.init = ide_drive_initfn,
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.qdev.props = (Property[]) {
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DEFINE_PROP_UINT32("unit", IDEDrive, dev.unit, -1),
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DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf),
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DEFINE_PROP_STRING("ver", IDEDrive, dev.version),
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DEFINE_PROP_STRING("serial", IDEDrive, dev.serial),
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DEFINE_PROP_END_OF_LIST(),
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}
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};
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static void ide_drive_register(void)
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{
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ide_qdev_register(&ide_drive_info);
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}
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device_init(ide_drive_register);
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