static void bdrv_format_print(void *opaque, const char *name)
{
- fprintf(stderr, " %s", name);
+ error_printf(" %s", name);
}
void drive_uninit(DriveInfo *dinfo)
} else if (!strcmp(buf, "report")) {
return BLOCK_ERR_REPORT;
} else {
- fprintf(stderr, "qemu: '%s' invalid %s error action\n",
- buf, is_read ? "read" : "write");
+ error_report("'%s' invalid %s error action",
+ buf, is_read ? "read" : "write");
return -1;
}
}
type = IF_NONE;
max_devs = 0;
} else {
- fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
+ error_report("unsupported bus type '%s'", buf);
return NULL;
}
}
if (cyls || heads || secs) {
if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
- fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
+ error_report("invalid physical cyls number");
return NULL;
}
if (heads < 1 || (type == IF_IDE && heads > 16)) {
- fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
+ error_report("invalid physical heads number");
return NULL;
}
if (secs < 1 || (type == IF_IDE && secs > 63)) {
- fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
+ error_report("invalid physical secs number");
return NULL;
}
}
if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
if (!cyls) {
- fprintf(stderr,
- "qemu: '%s' trans must be used with cyls,heads and secs\n",
- buf);
+ error_report("'%s' trans must be used with cyls,heads and secs",
+ buf);
return NULL;
}
if (!strcmp(buf, "none"))
else if (!strcmp(buf, "auto"))
translation = BIOS_ATA_TRANSLATION_AUTO;
else {
- fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
+ error_report("'%s' invalid translation type", buf);
return NULL;
}
}
media = MEDIA_DISK;
} else if (!strcmp(buf, "cdrom")) {
if (cyls || secs || heads) {
- fprintf(stderr,
- "qemu: '%s' invalid physical CHS format\n", buf);
+ error_report("'%s' invalid physical CHS format", buf);
return NULL;
}
media = MEDIA_CDROM;
} else {
- fprintf(stderr, "qemu: '%s' invalid media\n", buf);
+ error_report("'%s' invalid media", buf);
return NULL;
}
}
} else if (!strcmp(buf, "writethrough")) {
/* this is the default */
} else {
- fprintf(stderr, "qemu: invalid cache option\n");
+ error_report("invalid cache option");
return NULL;
}
}
} else if (!strcmp(buf, "threads")) {
/* this is the default */
} else {
- fprintf(stderr, "qemu: invalid aio option\n");
+ error_report("invalid aio option");
return NULL;
}
}
if ((buf = qemu_opt_get(opts, "format")) != NULL) {
if (strcmp(buf, "?") == 0) {
- fprintf(stderr, "qemu: Supported formats:");
- bdrv_iterate_format(bdrv_format_print, NULL);
- fprintf(stderr, "\n");
- return NULL;
+ error_printf("Supported formats:");
+ bdrv_iterate_format(bdrv_format_print, NULL);
+ error_printf("\n");
+ return NULL;
}
drv = bdrv_find_whitelisted_format(buf);
if (!drv) {
- fprintf(stderr, "qemu: '%s' invalid format\n", buf);
+ error_report("'%s' invalid format", buf);
return NULL;
}
}
on_write_error = BLOCK_ERR_STOP_ENOSPC;
if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) {
- fprintf(stderr, "werror is not supported by this format\n");
+ error_report("werror is not supported by this bus type");
return NULL;
}
on_read_error = BLOCK_ERR_REPORT;
if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
if (type != IF_IDE && type != IF_VIRTIO && type != IF_SCSI && type != IF_NONE) {
- fprintf(stderr, "rerror is not supported by this format\n");
+ error_report("rerror is not supported by this bus type");
return NULL;
}
if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
if (type != IF_VIRTIO) {
- fprintf(stderr, "addr is not supported\n");
+ error_report("addr is not supported by this bus type");
return NULL;
}
}
if (index != -1) {
if (bus_id != 0 || unit_id != -1) {
- fprintf(stderr,
- "qemu: index cannot be used with bus and unit\n");
+ error_report("index cannot be used with bus and unit");
return NULL;
}
if (max_devs == 0)
/* check unit id */
if (max_devs && unit_id >= max_devs) {
- fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
- unit_id, max_devs - 1);
+ error_report("unit %d too big (max is %d)",
+ unit_id, max_devs - 1);
return NULL;
}
ro = 1;
} else if (ro == 1) {
if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY && type != IF_NONE) {
- fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
+ error_report("readonly not supported by this bus type");
return NULL;
}
}
ret = bdrv_open(dinfo->bdrv, file, bdrv_flags, drv);
if (ret < 0) {
- fprintf(stderr, "qemu: could not open disk image %s: %s\n",
- file, strerror(-ret));
+ error_report("could not open disk image %s: %s",
+ file, strerror(-ret));
return NULL;
}
}
}
+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 *format = qdict_get_try_str(qdict, "format");
+ BlockDriverState *bs;
+ BlockDriver *drv, *proto_drv;
+ int ret = 0;
+ int flags;
+
+ if (!filename) {
+ qerror_report(QERR_MISSING_PARAMETER, "snapshot_file");
+ ret = -1;
+ goto out;
+ }
+
+ bs = bdrv_find(device);
+ if (!bs) {
+ qerror_report(QERR_DEVICE_NOT_FOUND, device);
+ ret = -1;
+ goto out;
+ }
+
+ if (!format) {
+ format = "qcow2";
+ }
+
+ drv = bdrv_find_format(format);
+ if (!drv) {
+ qerror_report(QERR_INVALID_BLOCK_FORMAT, format);
+ ret = -1;
+ goto out;
+ }
+
+ proto_drv = bdrv_find_protocol(filename);
+ if (!proto_drv) {
+ qerror_report(QERR_INVALID_BLOCK_FORMAT, format);
+ ret = -1;
+ goto out;
+ }
+
+ ret = bdrv_img_create(filename, format, bs->filename,
+ bs->drv->format_name, NULL, -1, bs->open_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 (ret != 0) {
+ abort();
+ }
+out:
+ if (ret) {
+ ret = -1;
+ }
+
+ return ret;
+}
+
static int eject_device(Monitor *mon, BlockDriverState *bs, int force)
{
if (!force) {
/* clean up guest state from pointing to host resource by
* finding and removing DeviceState "drive" property */
- 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 (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;
+ }
}
}
}
projects / qemu.git / blobdiff