#include "qemu-option.h"
#include "qemu-config.h"
#include "sysemu.h"
-#include "hw/qdev.h"
#include "block_int.h"
static QTAILQ_HEAD(drivelist, DriveInfo) drives = QTAILQ_HEAD_INITIALIZER(drives);
DriveInfo *dinfo = drive_get_by_blockdev(bs);
if (dinfo && dinfo->auto_del) {
- drive_uninit(dinfo);
+ drive_put_ref(dinfo);
}
}
}
QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file,
- const char *fmt, ...)
+ const char *optstr)
{
- va_list ap;
- char optstr[1024];
QemuOpts *opts;
char buf[32];
- va_start(ap, fmt);
- vsnprintf(optstr, sizeof(optstr), fmt, ap);
- va_end(ap);
-
opts = drive_def(optstr);
if (!opts) {
return NULL;
error_printf(" %s", name);
}
-void drive_uninit(DriveInfo *dinfo)
+static void drive_uninit(DriveInfo *dinfo)
{
qemu_opts_del(dinfo->opts);
bdrv_delete(dinfo->bdrv);
+ g_free(dinfo->id);
QTAILQ_REMOVE(&drives, dinfo, next);
- qemu_free(dinfo);
+ g_free(dinfo);
+}
+
+void drive_put_ref(DriveInfo *dinfo)
+{
+ assert(dinfo->refcount);
+ if (--dinfo->refcount == 0) {
+ drive_uninit(dinfo);
+ }
+}
+
+void drive_get_ref(DriveInfo *dinfo)
+{
+ dinfo->refcount++;
}
static int parse_block_error_action(const char *buf, int is_read)
}
}
-DriveInfo *drive_init(QemuOpts *opts, int default_to_scsi, int *fatal_error)
+DriveInfo *drive_init(QemuOpts *opts, int default_to_scsi)
{
const char *buf;
const char *file = NULL;
int snapshot = 0;
int ret;
- *fatal_error = 1;
-
translation = BIOS_ATA_TRANSLATION_AUTO;
-
- if (default_to_scsi) {
- type = IF_SCSI;
- pstrcpy(devname, sizeof(devname), "scsi");
- } else {
- type = IF_IDE;
- pstrcpy(devname, sizeof(devname), "ide");
- }
media = MEDIA_DISK;
/* extract parameters */
error_report("unsupported bus type '%s'", buf);
return NULL;
}
+ } else {
+ type = default_to_scsi ? IF_SCSI : IF_IDE;
+ pstrcpy(devname, sizeof(devname), if_name[type]);
}
+
max_devs = if_max_devs[type];
if (cyls || heads || secs) {
if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
if (!cyls) {
- error_report("'%s' trans must be used with cyls,heads and secs",
+ error_report("'%s' trans must be used with cyls, heads and secs",
buf);
return NULL;
}
media = MEDIA_DISK;
} else if (!strcmp(buf, "cdrom")) {
if (cyls || secs || heads) {
- error_report("'%s' invalid physical CHS format", buf);
+ error_report("CHS can't be set with media=%s", buf);
return NULL;
}
media = MEDIA_CDROM;
}
if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
- if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
- bdrv_flags |= BDRV_O_NOCACHE;
- } else if (!strcmp(buf, "writeback")) {
- bdrv_flags |= BDRV_O_CACHE_WB;
- } else if (!strcmp(buf, "unsafe")) {
- bdrv_flags |= BDRV_O_CACHE_WB;
- bdrv_flags |= BDRV_O_NO_FLUSH;
- } else if (!strcmp(buf, "writethrough")) {
- /* this is the default */
- } else {
- error_report("invalid cache option");
- return NULL;
+ if (bdrv_parse_cache_flags(buf, &bdrv_flags) != 0) {
+ error_report("invalid cache option");
+ return NULL;
}
}
/* init */
- dinfo = qemu_mallocz(sizeof(*dinfo));
+ dinfo = g_malloc0(sizeof(*dinfo));
if ((buf = qemu_opts_id(opts)) != NULL) {
- dinfo->id = qemu_strdup(buf);
+ dinfo->id = g_strdup(buf);
} else {
/* no id supplied -> create one */
- dinfo->id = qemu_mallocz(32);
+ dinfo->id = g_malloc0(32);
if (type == IF_IDE || type == IF_SCSI)
mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
if (max_devs)
dinfo->bus = bus_id;
dinfo->unit = unit_id;
dinfo->opts = opts;
+ dinfo->refcount = 1;
if (serial)
strncpy(dinfo->serial, serial, sizeof(dinfo->serial) - 1);
QTAILQ_INSERT_TAIL(&drives, dinfo, next);
}
break;
case MEDIA_CDROM:
- bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
+ dinfo->media_cd = 1;
break;
}
break;
case IF_SD:
- /* FIXME: This isn't really a floppy, but it's a reasonable
- approximation. */
case IF_FLOPPY:
- bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
- break;
case IF_PFLASH:
case IF_MTD:
break;
case IF_VIRTIO:
/* add virtio block device */
opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0);
- qemu_opt_set(opts, "driver", "virtio-blk-pci");
+ qemu_opt_set(opts, "driver", "virtio-blk");
qemu_opt_set(opts, "drive", dinfo->id);
if (devaddr)
qemu_opt_set(opts, "addr", devaddr);
abort();
}
if (!file || !*file) {
- *fatal_error = 0;
- return NULL;
+ return dinfo;
}
if (snapshot) {
/* always use cache=unsafe with snapshot */
} else if (ro == 1) {
if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY && type != IF_NONE) {
error_report("readonly not supported by this bus type");
- return NULL;
+ goto err;
}
}
if (ret < 0) {
error_report("could not open disk image %s: %s",
file, strerror(-ret));
- return NULL;
+ goto err;
}
if (bdrv_key_required(dinfo->bdrv))
autostart = 0;
- *fatal_error = 0;
return dinfo;
+
+err:
+ bdrv_delete(dinfo->bdrv);
+ g_free(dinfo->id);
+ QTAILQ_REMOVE(&drives, dinfo, next);
+ g_free(dinfo);
+ return NULL;
}
void do_commit(Monitor *mon, const QDict *qdict)
int do_snapshot_blkdev(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
const char *device = qdict_get_str(qdict, "device");
- const char *filename = qdict_get_try_str(qdict, "snapshot_file");
+ const char *filename = qdict_get_try_str(qdict, "snapshot-file");
const char *format = qdict_get_try_str(qdict, "format");
BlockDriverState *bs;
- BlockDriver *drv, *proto_drv;
+ BlockDriver *drv, *old_drv, *proto_drv;
int ret = 0;
int flags;
+ char old_filename[1024];
if (!filename) {
- qerror_report(QERR_MISSING_PARAMETER, "snapshot_file");
+ qerror_report(QERR_MISSING_PARAMETER, "snapshot-file");
ret = -1;
goto out;
}
goto out;
}
+ pstrcpy(old_filename, sizeof(old_filename), bs->filename);
+
+ old_drv = bs->drv;
+ flags = bs->open_flags;
+
if (!format) {
format = "qcow2";
}
}
ret = bdrv_img_create(filename, format, bs->filename,
- bs->drv->format_name, NULL, -1, bs->open_flags);
+ bs->drv->format_name, NULL, -1, flags);
if (ret) {
goto out;
}
qemu_aio_flush();
bdrv_flush(bs);
- flags = bs->open_flags;
bdrv_close(bs);
ret = bdrv_open(bs, filename, flags, drv);
/*
- * If reopening the image file we just created fails, we really
- * are in trouble :(
+ * If reopening the image file we just created fails, fall back
+ * and try to re-open the original image. If that fails too, we
+ * are in serious trouble.
*/
if (ret != 0) {
- abort();
+ ret = bdrv_open(bs, old_filename, flags, old_drv);
+ if (ret != 0) {
+ qerror_report(QERR_OPEN_FILE_FAILED, old_filename);
+ } else {
+ qerror_report(QERR_OPEN_FILE_FAILED, filename);
+ }
}
out:
if (ret) {
static int eject_device(Monitor *mon, BlockDriverState *bs, int force)
{
- if (!force) {
- if (!bdrv_is_removable(bs)) {
- qerror_report(QERR_DEVICE_NOT_REMOVABLE,
- bdrv_get_device_name(bs));
- return -1;
- }
- if (bdrv_is_locked(bs)) {
+ if (!bdrv_dev_has_removable_media(bs)) {
+ qerror_report(QERR_DEVICE_NOT_REMOVABLE, bdrv_get_device_name(bs));
+ return -1;
+ }
+ if (bdrv_dev_is_medium_locked(bs) && !bdrv_dev_is_tray_open(bs)) {
+ bdrv_dev_eject_request(bs, force);
+ if (!force) {
qerror_report(QERR_DEVICE_LOCKED, bdrv_get_device_name(bs));
return -1;
}
{
const char *id = qdict_get_str(qdict, "id");
BlockDriverState *bs;
- BlockDriverState **ptr;
- Property *prop;
bs = bdrv_find(id);
if (!bs) {
qerror_report(QERR_DEVICE_NOT_FOUND, id);
return -1;
}
+ if (bdrv_in_use(bs)) {
+ qerror_report(QERR_DEVICE_IN_USE, id);
+ return -1;
+ }
/* quiesce block driver; prevent further io */
qemu_aio_flush();
bdrv_flush(bs);
bdrv_close(bs);
- /* clean up guest state from pointing to host resource by
- * finding and removing DeviceState "drive" property */
- if (bs->peer) {
- for (prop = bs->peer->info->props; prop && prop->name; prop++) {
- if (prop->info->type == PROP_TYPE_DRIVE) {
- ptr = qdev_get_prop_ptr(bs->peer, prop);
- if (*ptr == bs) {
- bdrv_detach(bs, bs->peer);
- *ptr = NULL;
- break;
- }
- }
- }
+ /* if we have a device attached to this BlockDriverState
+ * then we need to make the drive anonymous until the device
+ * can be removed. If this is a drive with no device backing
+ * then we can just get rid of the block driver state right here.
+ */
+ if (bdrv_get_attached_dev(bs)) {
+ bdrv_make_anon(bs);
+ } else {
+ drive_uninit(drive_get_by_blockdev(bs));
}
- /* clean up host side */
- drive_uninit(drive_get_by_blockdev(bs));
-
return 0;
}
projects / qemu.git / blobdiff