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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/hw/ide/qdev.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/hw/ide/qdev.c')
-rw-r--r--qemu/hw/ide/qdev.c367
1 files changed, 367 insertions, 0 deletions
diff --git a/qemu/hw/ide/qdev.c b/qemu/hw/ide/qdev.c
new file mode 100644
index 000000000..788b36133
--- /dev/null
+++ b/qemu/hw/ide/qdev.c
@@ -0,0 +1,367 @@
+/*
+ * 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)