Adding upstream version 1:7.2+dfsg.upstream/1%7.2+dfsgupstream

Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>

1 files changed, 371 insertions, 0 deletions

diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c
new file mode 100644
index 00000000..618045b8
--- /dev/null
+++ b/hw/ide/qdev.c
@@ -0,0 +1,371 @@
+/*
+ * 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 2.1 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 "qemu/osdep.h"
+#include "sysemu/dma.h"
+#include "qapi/error.h"
+#include "qapi/qapi-types-block.h"
+#include "qemu/error-report.h"
+#include "qemu/main-loop.h"
+#include "qemu/module.h"
+#include "hw/ide/internal.h"
+#include "hw/qdev-properties.h"
+#include "hw/qdev-properties-system.h"
+#include "sysemu/block-backend.h"
+#include "sysemu/blockdev.h"
+#include "hw/block/block.h"
+#include "sysemu/sysemu.h"
+#include "sysemu/runstate.h"
+#include "qapi/visitor.h"
+
+/* --------------------------------- */
+
+static char *idebus_get_fw_dev_path(DeviceState *dev);
+static void idebus_unrealize(BusState *qdev);
+
+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;
+    k->unrealize = idebus_unrealize;
+}
+
+static void idebus_unrealize(BusState *bus)
+{
+    IDEBus *ibus = IDE_BUS(bus);
+
+    if (ibus->vmstate) {
+        qemu_del_vm_change_state_handler(ibus->vmstate);
+    }
+}
+
+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_init(IDEBus *idebus, size_t idebus_size, DeviceState *dev,
+                 int bus_id, int max_units)
+{
+    qbus_init(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 void ide_qdev_realize(DeviceState *qdev, Error **errp)
+{
+    IDEDevice *dev = IDE_DEVICE(qdev);
+    IDEDeviceClass *dc = IDE_DEVICE_GET_CLASS(dev);
+    IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
+
+    if (dev->unit == -1) {
+        dev->unit = bus->master ? 1 : 0;
+    }
+
+    if (dev->unit >= bus->max_units) {
+        error_setg(errp, "Can't create IDE unit %d, bus supports only %d units",
+                     dev->unit, bus->max_units);
+        return;
+    }
+
+    switch (dev->unit) {
+    case 0:
+        if (bus->master) {
+            error_setg(errp, "IDE unit %d is in use", dev->unit);
+            return;
+        }
+        bus->master = dev;
+        break;
+    case 1:
+        if (bus->slave) {
+            error_setg(errp, "IDE unit %d is in use", dev->unit);
+            return;
+        }
+        bus->slave = dev;
+        break;
+    default:
+        error_setg(errp, "Invalid IDE unit %d", dev->unit);
+        return;
+    }
+    dc->realize(dev, errp);
+}
+
+IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
+{
+    DeviceState *dev;
+
+    dev = qdev_new(drive->media_cd ? "ide-cd" : "ide-hd");
+    qdev_prop_set_uint32(dev, "unit", unit);
+    qdev_prop_set_drive_err(dev, "drive", blk_by_legacy_dinfo(drive),
+                            &error_fatal);
+    qdev_realize_and_unref(dev, &bus->qbus, &error_fatal);
+    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 void ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind, Error **errp)
+{
+    IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus);
+    IDEState *s = bus->ifs + dev->unit;
+    int ret;
+
+    if (!dev->conf.blk) {
+        if (kind != IDE_CD) {
+            error_setg(errp, "No drive specified");
+            return;
+        } else {
+            /* Anonymous BlockBackend for an empty drive */
+            dev->conf.blk = blk_new(qemu_get_aio_context(), 0, BLK_PERM_ALL);
+            ret = blk_attach_dev(dev->conf.blk, &dev->qdev);
+            assert(ret == 0);
+        }
+    }
+
+    if (dev->conf.discard_granularity == -1) {
+        dev->conf.discard_granularity = 512;
+    } else if (dev->conf.discard_granularity &&
+               dev->conf.discard_granularity != 512) {
+        error_setg(errp, "discard_granularity must be 512 for ide");
+        return;
+    }
+
+    if (!blkconf_blocksizes(&dev->conf, errp)) {
+        return;
+    }
+
+    if (dev->conf.logical_block_size != 512) {
+        error_setg(errp, "logical_block_size must be 512 for IDE");
+        return;
+    }
+
+    if (kind != IDE_CD) {
+        if (!blkconf_geometry(&dev->conf, &dev->chs_trans, 65535, 16, 255,
+                              errp)) {
+            return;
+        }
+    }
+    if (!blkconf_apply_backend_options(&dev->conf, kind == IDE_CD,
+                                       kind != IDE_CD, errp)) {
+        return;
+    }
+
+    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, errp) < 0) {
+        return;
+    }
+
+    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");
+
+    add_boot_device_lchs(&dev->qdev, dev->unit ? "/disk@1" : "/disk@0",
+                         dev->conf.lcyls,
+                         dev->conf.lheads,
+                         dev->conf.lsecs);
+}
+
+static void ide_dev_get_bootindex(Object *obj, Visitor *v, const char *name,
+                                  void *opaque, Error **errp)
+{
+    IDEDevice *d = IDE_DEVICE(obj);
+
+    visit_type_int32(v, name, &d->conf.bootindex, errp);
+}
+
+static void ide_dev_set_bootindex(Object *obj, Visitor *v, const char *name,
+                                  void *opaque, Error **errp)
+{
+    IDEDevice *d = IDE_DEVICE(obj);
+    int32_t boot_index;
+    Error *local_err = NULL;
+
+    if (!visit_type_int32(v, name, &boot_index, errp)) {
+        return;
+    }
+    /* 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:
+    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);
+    object_property_set_int(obj, "bootindex", -1, NULL);
+}
+
+static void ide_hd_realize(IDEDevice *dev, Error **errp)
+{
+    ide_dev_initfn(dev, IDE_HD, errp);
+}
+
+static void ide_cd_realize(IDEDevice *dev, Error **errp)
+{
+    ide_dev_initfn(dev, IDE_CD, errp);
+}
+
+#define DEFINE_IDE_DEV_PROPERTIES()                     \
+    DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf),        \
+    DEFINE_BLOCK_ERROR_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_UINT16("rotation_rate", IDEDrive, dev.rotation_rate, 0),
+    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->realize  = ide_hd_realize;
+    dc->fw_name = "drive";
+    dc->desc    = "virtual IDE disk";
+    device_class_set_props(dc, 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->realize  = ide_cd_realize;
+    dc->fw_name = "drive";
+    dc->desc    = "virtual IDE CD-ROM";
+    device_class_set_props(dc, 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 void ide_device_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *k = DEVICE_CLASS(klass);
+    k->realize = ide_qdev_realize;
+    set_bit(DEVICE_CATEGORY_STORAGE, k->categories);
+    k->bus_type = TYPE_IDE_BUS;
+    device_class_set_props(k, 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_device_type_info);
+}
+
+type_init(ide_register_types)