*
* This work is licensed under the terms of the GNU GPL, version 2 or
* later. See the COPYING file in the top-level directory.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
*/
-#include "blockdev.h"
-#include "hw/block-common.h"
-#include "blockjob.h"
-#include "monitor.h"
-#include "qerror.h"
-#include "qemu-option.h"
-#include "qemu-config.h"
-#include "qemu-objects.h"
-#include "sysemu.h"
-#include "block_int.h"
+#include "sysemu/blockdev.h"
+#include "hw/block/block.h"
+#include "block/blockjob.h"
+#include "monitor/monitor.h"
+#include "qapi/qmp/qerror.h"
+#include "qemu/option.h"
+#include "qemu/config-file.h"
+#include "qapi/qmp/types.h"
+#include "sysemu/sysemu.h"
+#include "block/block_int.h"
#include "qmp-commands.h"
#include "trace.h"
-#include "arch_init.h"
+#include "sysemu/arch_init.h"
static QTAILQ_HEAD(drivelist, DriveInfo) drives = QTAILQ_HEAD_INITIALIZER(drives);
+extern QemuOptsList qemu_common_drive_opts;
static const char *const if_name[IF_COUNT] = {
[IF_NONE] = "none",
bdrv_delete(dinfo->bdrv);
g_free(dinfo->id);
QTAILQ_REMOVE(&drives, dinfo, next);
+ g_free(dinfo->serial);
g_free(dinfo);
}
}
}
-static bool do_check_io_limits(BlockIOLimit *io_limits)
+static bool do_check_io_limits(BlockIOLimit *io_limits, Error **errp)
{
bool bps_flag;
bool iops_flag;
&& ((io_limits->iops[BLOCK_IO_LIMIT_READ] != 0)
|| (io_limits->iops[BLOCK_IO_LIMIT_WRITE] != 0));
if (bps_flag || iops_flag) {
+ error_setg(errp, "bps(iops) and bps_rd/bps_wr(iops_rd/iops_wr) "
+ "cannot be used at the same time");
+ return false;
+ }
+
+ if (io_limits->bps[BLOCK_IO_LIMIT_TOTAL] < 0 ||
+ io_limits->bps[BLOCK_IO_LIMIT_WRITE] < 0 ||
+ io_limits->bps[BLOCK_IO_LIMIT_READ] < 0 ||
+ io_limits->iops[BLOCK_IO_LIMIT_TOTAL] < 0 ||
+ io_limits->iops[BLOCK_IO_LIMIT_WRITE] < 0 ||
+ io_limits->iops[BLOCK_IO_LIMIT_READ] < 0) {
+ error_setg(errp, "bps and iops values must be 0 or greater");
return false;
}
return true;
}
-DriveInfo *drive_init(QemuOpts *opts, int default_to_scsi)
+DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type)
{
const char *buf;
const char *file = NULL;
int snapshot = 0;
bool copy_on_read;
int ret;
+ Error *error = NULL;
+ QemuOpts *opts;
+ QDict *bs_opts;
+ const char *id;
translation = BIOS_ATA_TRANSLATION_AUTO;
media = MEDIA_DISK;
+ /* Check common options by copying from all_opts to opts, all other options
+ * are stored in bs_opts. */
+ id = qemu_opts_id(all_opts);
+ opts = qemu_opts_create(&qemu_common_drive_opts, id, 1, &error);
+ if (error_is_set(&error)) {
+ qerror_report_err(error);
+ error_free(error);
+ return NULL;
+ }
+
+ bs_opts = qdict_new();
+ qemu_opts_to_qdict(all_opts, bs_opts);
+ qemu_opts_absorb_qdict(opts, bs_opts, &error);
+ if (error_is_set(&error)) {
+ qerror_report_err(error);
+ error_free(error);
+ return NULL;
+ }
+
+ if (id) {
+ qdict_del(bs_opts, "id");
+ }
+
/* extract parameters */
bus_id = qemu_opt_get_number(opts, "bus", 0);
unit_id = qemu_opt_get_number(opts, "unit", -1);
return NULL;
}
} else {
- type = default_to_scsi ? IF_SCSI : IF_IDE;
+ type = block_default_type;
}
max_devs = if_max_devs[type];
}
}
+ if ((buf = qemu_opt_get(opts, "discard")) != NULL) {
+ if (bdrv_parse_discard_flags(buf, &bdrv_flags) != 0) {
+ error_report("invalid discard option");
+ return NULL;
+ }
+ }
+
bdrv_flags |= BDRV_O_CACHE_WB;
if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
if (bdrv_parse_cache_flags(buf, &bdrv_flags) != 0) {
io_limits.iops[BLOCK_IO_LIMIT_WRITE] =
qemu_opt_get_number(opts, "iops_wr", 0);
- if (!do_check_io_limits(&io_limits)) {
- error_report("bps(iops) and bps_rd/bps_wr(iops_rd/iops_wr) "
- "cannot be used at the same time");
+ if (!do_check_io_limits(&io_limits, &error)) {
+ error_report("%s", error_get_pretty(error));
+ error_free(error);
return NULL;
}
+ if (qemu_opt_get(opts, "boot") != NULL) {
+ fprintf(stderr, "qemu-kvm: boot=on|off is deprecated and will be "
+ "ignored. Future versions will reject this parameter. Please "
+ "update your scripts.\n");
+ }
+
on_write_error = BLOCKDEV_ON_ERROR_ENOSPC;
if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) {
dinfo->heads = heads;
dinfo->secs = secs;
dinfo->trans = translation;
- dinfo->opts = opts;
+ dinfo->opts = all_opts;
dinfo->refcount = 1;
- dinfo->serial = serial;
+ if (serial != NULL) {
+ dinfo->serial = g_strdup(serial);
+ }
QTAILQ_INSERT_TAIL(&drives, dinfo, next);
bdrv_set_on_error(dinfo->bdrv, on_read_error, on_write_error);
case IF_MTD:
break;
case IF_VIRTIO:
+ {
/* add virtio block device */
- opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0, NULL);
+ QemuOpts *devopts;
+ devopts = qemu_opts_create_nofail(qemu_find_opts("device"));
if (arch_type == QEMU_ARCH_S390X) {
- qemu_opt_set(opts, "driver", "virtio-blk-s390");
+ qemu_opt_set(devopts, "driver", "virtio-blk-s390");
} else {
- qemu_opt_set(opts, "driver", "virtio-blk-pci");
+ qemu_opt_set(devopts, "driver", "virtio-blk-pci");
}
- qemu_opt_set(opts, "drive", dinfo->id);
+ qemu_opt_set(devopts, "drive", dinfo->id);
if (devaddr)
- qemu_opt_set(opts, "addr", devaddr);
+ qemu_opt_set(devopts, "addr", devaddr);
break;
+ }
default:
abort();
}
if (!file || !*file) {
- return dinfo;
+ if (qdict_size(bs_opts)) {
+ file = NULL;
+ } else {
+ return dinfo;
+ }
}
if (snapshot) {
/* always use cache=unsafe with snapshot */
error_report("warning: disabling copy_on_read on readonly drive");
}
- ret = bdrv_open(dinfo->bdrv, file, bdrv_flags, drv);
+ ret = bdrv_open(dinfo->bdrv, file, bs_opts, bdrv_flags, drv);
+ bs_opts = NULL;
+
if (ret < 0) {
- error_report("could not open disk image %s: %s",
- file, strerror(-ret));
+ if (ret == -EMEDIUMTYPE) {
+ error_report("could not open disk image %s: not in %s format",
+ file ?: dinfo->id, drv->format_name);
+ } else {
+ error_report("could not open disk image %s: %s",
+ file ?: dinfo->id, strerror(-ret));
+ }
goto err;
}
if (bdrv_key_required(dinfo->bdrv))
autostart = 0;
+
+ qemu_opts_del(opts);
+
return dinfo;
err:
+ qemu_opts_del(opts);
+ QDECREF(bs_opts);
bdrv_delete(dinfo->bdrv);
g_free(dinfo->id);
QTAILQ_REMOVE(&drives, dinfo, next);
if (!strcmp(device, "all")) {
ret = bdrv_commit_all();
- if (ret == -EBUSY) {
- qerror_report(QERR_DEVICE_IN_USE, device);
- return;
- }
} else {
bs = bdrv_find(device);
if (!bs) {
- qerror_report(QERR_DEVICE_NOT_FOUND, device);
+ monitor_printf(mon, "Device '%s' not found\n", device);
return;
}
ret = bdrv_commit(bs);
- if (ret == -EBUSY) {
- qerror_report(QERR_DEVICE_IN_USE, device);
- return;
- }
+ }
+ if (ret < 0) {
+ monitor_printf(mon, "'commit' error for '%s': %s\n", device,
+ strerror(-ret));
}
}
int ret = 0;
BlockdevActionList *dev_entry = dev_list;
BlkTransactionStates *states, *next;
+ Error *local_err = NULL;
QSIMPLEQ_HEAD(snap_bdrv_states, BlkTransactionStates) snap_bdrv_states;
QSIMPLEQ_INIT(&snap_bdrv_states);
/* create new image w/backing file */
if (mode != NEW_IMAGE_MODE_EXISTING) {
- ret = bdrv_img_create(new_image_file, format,
- states->old_bs->filename,
- states->old_bs->drv->format_name,
- NULL, -1, flags);
- if (ret) {
- error_set(errp, QERR_OPEN_FILE_FAILED, new_image_file);
+ bdrv_img_create(new_image_file, format,
+ states->old_bs->filename,
+ states->old_bs->drv->format_name,
+ NULL, -1, flags, &local_err, false);
+ if (error_is_set(&local_err)) {
+ error_propagate(errp, local_err);
goto delete_and_fail;
}
}
/* We will manually add the backing_hd field to the bs later */
states->new_bs = bdrv_new("");
- ret = bdrv_open(states->new_bs, new_image_file,
+ /* TODO Inherit bs->options or only take explicit options with an
+ * extended QMP command? */
+ ret = bdrv_open(states->new_bs, new_image_file, NULL,
flags | BDRV_O_NO_BACKING, drv);
if (ret != 0) {
error_set(errp, QERR_OPEN_FILE_FAILED, new_image_file);
int bdrv_flags, BlockDriver *drv,
const char *password, Error **errp)
{
- if (bdrv_open(bs, filename, bdrv_flags, drv) < 0) {
+ if (bdrv_open(bs, filename, NULL, bdrv_flags, drv) < 0) {
error_set(errp, QERR_OPEN_FILE_FAILED, filename);
return;
}
io_limits.iops[BLOCK_IO_LIMIT_READ] = iops_rd;
io_limits.iops[BLOCK_IO_LIMIT_WRITE]= iops_wr;
- if (!do_check_io_limits(&io_limits)) {
- error_set(errp, QERR_INVALID_PARAMETER_COMBINATION);
+ if (!do_check_io_limits(&io_limits, errp)) {
return;
}
bs->io_limits = io_limits;
- bs->slice_time = BLOCK_IO_SLICE_TIME;
if (!bs->io_limits_enabled && bdrv_io_limits_enabled(bs)) {
bdrv_io_limits_enable(bs);
void qmp_block_resize(const char *device, int64_t size, Error **errp)
{
BlockDriverState *bs;
+ int ret;
bs = bdrv_find(device);
if (!bs) {
return;
}
- switch (bdrv_truncate(bs, size)) {
+ /* complete all in-flight operations before resizing the device */
+ bdrv_drain_all();
+
+ ret = bdrv_truncate(bs, size);
+ switch (ret) {
case 0:
break;
case -ENOMEDIUM:
error_set(errp, QERR_DEVICE_IN_USE, device);
break;
default:
- error_set(errp, QERR_UNDEFINED_ERROR);
+ error_setg_errno(errp, -ret, "Could not resize");
break;
}
}
-static QObject *qobject_from_block_job(BlockJob *job)
-{
- return qobject_from_jsonf("{ 'type': %s,"
- "'device': %s,"
- "'len': %" PRId64 ","
- "'offset': %" PRId64 ","
- "'speed': %" PRId64 " }",
- job->job_type->job_type,
- bdrv_get_device_name(job->bs),
- job->len,
- job->offset,
- job->speed);
-}
-
static void block_job_cb(void *opaque, int ret)
{
BlockDriverState *bs = opaque;
drive_get_ref(drive_get_by_blockdev(bs));
}
+#define DEFAULT_MIRROR_BUF_SIZE (10 << 20)
+
+void qmp_drive_mirror(const char *device, const char *target,
+ bool has_format, const char *format,
+ enum MirrorSyncMode sync,
+ bool has_mode, enum NewImageMode mode,
+ bool has_speed, int64_t speed,
+ bool has_granularity, uint32_t granularity,
+ bool has_buf_size, int64_t buf_size,
+ bool has_on_source_error, BlockdevOnError on_source_error,
+ bool has_on_target_error, BlockdevOnError on_target_error,
+ Error **errp)
+{
+ BlockDriverState *bs;
+ BlockDriverState *source, *target_bs;
+ BlockDriver *proto_drv;
+ BlockDriver *drv = NULL;
+ Error *local_err = NULL;
+ int flags;
+ uint64_t size;
+ int ret;
+
+ if (!has_speed) {
+ speed = 0;
+ }
+ if (!has_on_source_error) {
+ on_source_error = BLOCKDEV_ON_ERROR_REPORT;
+ }
+ if (!has_on_target_error) {
+ on_target_error = BLOCKDEV_ON_ERROR_REPORT;
+ }
+ if (!has_mode) {
+ mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS;
+ }
+ if (!has_granularity) {
+ granularity = 0;
+ }
+ if (!has_buf_size) {
+ buf_size = DEFAULT_MIRROR_BUF_SIZE;
+ }
+
+ if (granularity != 0 && (granularity < 512 || granularity > 1048576 * 64)) {
+ error_set(errp, QERR_INVALID_PARAMETER, device);
+ return;
+ }
+ if (granularity & (granularity - 1)) {
+ error_set(errp, QERR_INVALID_PARAMETER, device);
+ return;
+ }
+
+ bs = bdrv_find(device);
+ if (!bs) {
+ error_set(errp, QERR_DEVICE_NOT_FOUND, device);
+ return;
+ }
+
+ if (!bdrv_is_inserted(bs)) {
+ error_set(errp, QERR_DEVICE_HAS_NO_MEDIUM, device);
+ return;
+ }
+
+ if (!has_format) {
+ format = mode == NEW_IMAGE_MODE_EXISTING ? NULL : bs->drv->format_name;
+ }
+ if (format) {
+ drv = bdrv_find_format(format);
+ if (!drv) {
+ error_set(errp, QERR_INVALID_BLOCK_FORMAT, format);
+ return;
+ }
+ }
+
+ if (bdrv_in_use(bs)) {
+ error_set(errp, QERR_DEVICE_IN_USE, device);
+ return;
+ }
+
+ flags = bs->open_flags | BDRV_O_RDWR;
+ source = bs->backing_hd;
+ if (!source && sync == MIRROR_SYNC_MODE_TOP) {
+ sync = MIRROR_SYNC_MODE_FULL;
+ }
+
+ proto_drv = bdrv_find_protocol(target);
+ if (!proto_drv) {
+ error_set(errp, QERR_INVALID_BLOCK_FORMAT, format);
+ return;
+ }
+
+ bdrv_get_geometry(bs, &size);
+ size *= 512;
+ if (sync == MIRROR_SYNC_MODE_FULL && mode != NEW_IMAGE_MODE_EXISTING) {
+ /* create new image w/o backing file */
+ assert(format && drv);
+ bdrv_img_create(target, format,
+ NULL, NULL, NULL, size, flags, &local_err, false);
+ } else {
+ switch (mode) {
+ case NEW_IMAGE_MODE_EXISTING:
+ ret = 0;
+ break;
+ case NEW_IMAGE_MODE_ABSOLUTE_PATHS:
+ /* create new image with backing file */
+ bdrv_img_create(target, format,
+ source->filename,
+ source->drv->format_name,
+ NULL, size, flags, &local_err, false);
+ break;
+ default:
+ abort();
+ }
+ }
+
+ if (error_is_set(&local_err)) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ /* Mirroring takes care of copy-on-write using the source's backing
+ * file.
+ */
+ target_bs = bdrv_new("");
+ ret = bdrv_open(target_bs, target, NULL, flags | BDRV_O_NO_BACKING, drv);
+
+ if (ret < 0) {
+ bdrv_delete(target_bs);
+ error_set(errp, QERR_OPEN_FILE_FAILED, target);
+ return;
+ }
+
+ mirror_start(bs, target_bs, speed, granularity, buf_size, sync,
+ on_source_error, on_target_error,
+ block_job_cb, bs, &local_err);
+ if (local_err != NULL) {
+ bdrv_delete(target_bs);
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ /* Grab a reference so hotplug does not delete the BlockDriverState from
+ * underneath us.
+ */
+ drive_get_ref(drive_get_by_blockdev(bs));
+}
+
static BlockJob *find_block_job(const char *device)
{
BlockDriverState *bs;
bdrv_iterate(do_qmp_query_block_jobs_one, &prev);
return dummy.next;
}
+
+QemuOptsList qemu_common_drive_opts = {
+ .name = "drive",
+ .head = QTAILQ_HEAD_INITIALIZER(qemu_common_drive_opts.head),
+ .desc = {
+ {
+ .name = "bus",
+ .type = QEMU_OPT_NUMBER,
+ .help = "bus number",
+ },{
+ .name = "unit",
+ .type = QEMU_OPT_NUMBER,
+ .help = "unit number (i.e. lun for scsi)",
+ },{
+ .name = "if",
+ .type = QEMU_OPT_STRING,
+ .help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
+ },{
+ .name = "index",
+ .type = QEMU_OPT_NUMBER,
+ .help = "index number",
+ },{
+ .name = "cyls",
+ .type = QEMU_OPT_NUMBER,
+ .help = "number of cylinders (ide disk geometry)",
+ },{
+ .name = "heads",
+ .type = QEMU_OPT_NUMBER,
+ .help = "number of heads (ide disk geometry)",
+ },{
+ .name = "secs",
+ .type = QEMU_OPT_NUMBER,
+ .help = "number of sectors (ide disk geometry)",
+ },{
+ .name = "trans",
+ .type = QEMU_OPT_STRING,
+ .help = "chs translation (auto, lba. none)",
+ },{
+ .name = "media",
+ .type = QEMU_OPT_STRING,
+ .help = "media type (disk, cdrom)",
+ },{
+ .name = "snapshot",
+ .type = QEMU_OPT_BOOL,
+ .help = "enable/disable snapshot mode",
+ },{
+ .name = "file",
+ .type = QEMU_OPT_STRING,
+ .help = "disk image",
+ },{
+ .name = "discard",
+ .type = QEMU_OPT_STRING,
+ .help = "discard operation (ignore/off, unmap/on)",
+ },{
+ .name = "cache",
+ .type = QEMU_OPT_STRING,
+ .help = "host cache usage (none, writeback, writethrough, "
+ "directsync, unsafe)",
+ },{
+ .name = "aio",
+ .type = QEMU_OPT_STRING,
+ .help = "host AIO implementation (threads, native)",
+ },{
+ .name = "format",
+ .type = QEMU_OPT_STRING,
+ .help = "disk format (raw, qcow2, ...)",
+ },{
+ .name = "serial",
+ .type = QEMU_OPT_STRING,
+ .help = "disk serial number",
+ },{
+ .name = "rerror",
+ .type = QEMU_OPT_STRING,
+ .help = "read error action",
+ },{
+ .name = "werror",
+ .type = QEMU_OPT_STRING,
+ .help = "write error action",
+ },{
+ .name = "addr",
+ .type = QEMU_OPT_STRING,
+ .help = "pci address (virtio only)",
+ },{
+ .name = "readonly",
+ .type = QEMU_OPT_BOOL,
+ .help = "open drive file as read-only",
+ },{
+ .name = "iops",
+ .type = QEMU_OPT_NUMBER,
+ .help = "limit total I/O operations per second",
+ },{
+ .name = "iops_rd",
+ .type = QEMU_OPT_NUMBER,
+ .help = "limit read operations per second",
+ },{
+ .name = "iops_wr",
+ .type = QEMU_OPT_NUMBER,
+ .help = "limit write operations per second",
+ },{
+ .name = "bps",
+ .type = QEMU_OPT_NUMBER,
+ .help = "limit total bytes per second",
+ },{
+ .name = "bps_rd",
+ .type = QEMU_OPT_NUMBER,
+ .help = "limit read bytes per second",
+ },{
+ .name = "bps_wr",
+ .type = QEMU_OPT_NUMBER,
+ .help = "limit write bytes per second",
+ },{
+ .name = "copy-on-read",
+ .type = QEMU_OPT_BOOL,
+ .help = "copy read data from backing file into image file",
+ },{
+ .name = "boot",
+ .type = QEMU_OPT_BOOL,
+ .help = "(deprecated, ignored)",
+ },
+ { /* end of list */ }
+ },
+};
+
+QemuOptsList qemu_drive_opts = {
+ .name = "drive",
+ .head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head),
+ .desc = {
+ {
+ .name = "bus",
+ .type = QEMU_OPT_NUMBER,
+ .help = "bus number",
+ },{
+ .name = "unit",
+ .type = QEMU_OPT_NUMBER,
+ .help = "unit number (i.e. lun for scsi)",
+ },{
+ .name = "if",
+ .type = QEMU_OPT_STRING,
+ .help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
+ },{
+ .name = "index",
+ .type = QEMU_OPT_NUMBER,
+ .help = "index number",
+ },{
+ .name = "cyls",
+ .type = QEMU_OPT_NUMBER,
+ .help = "number of cylinders (ide disk geometry)",
+ },{
+ .name = "heads",
+ .type = QEMU_OPT_NUMBER,
+ .help = "number of heads (ide disk geometry)",
+ },{
+ .name = "secs",
+ .type = QEMU_OPT_NUMBER,
+ .help = "number of sectors (ide disk geometry)",
+ },{
+ .name = "trans",
+ .type = QEMU_OPT_STRING,
+ .help = "chs translation (auto, lba. none)",
+ },{
+ .name = "media",
+ .type = QEMU_OPT_STRING,
+ .help = "media type (disk, cdrom)",
+ },{
+ .name = "snapshot",
+ .type = QEMU_OPT_BOOL,
+ .help = "enable/disable snapshot mode",
+ },{
+ .name = "file",
+ .type = QEMU_OPT_STRING,
+ .help = "disk image",
+ },{
+ .name = "discard",
+ .type = QEMU_OPT_STRING,
+ .help = "discard operation (ignore/off, unmap/on)",
+ },{
+ .name = "cache",
+ .type = QEMU_OPT_STRING,
+ .help = "host cache usage (none, writeback, writethrough, "
+ "directsync, unsafe)",
+ },{
+ .name = "aio",
+ .type = QEMU_OPT_STRING,
+ .help = "host AIO implementation (threads, native)",
+ },{
+ .name = "format",
+ .type = QEMU_OPT_STRING,
+ .help = "disk format (raw, qcow2, ...)",
+ },{
+ .name = "serial",
+ .type = QEMU_OPT_STRING,
+ .help = "disk serial number",
+ },{
+ .name = "rerror",
+ .type = QEMU_OPT_STRING,
+ .help = "read error action",
+ },{
+ .name = "werror",
+ .type = QEMU_OPT_STRING,
+ .help = "write error action",
+ },{
+ .name = "addr",
+ .type = QEMU_OPT_STRING,
+ .help = "pci address (virtio only)",
+ },{
+ .name = "readonly",
+ .type = QEMU_OPT_BOOL,
+ .help = "open drive file as read-only",
+ },{
+ .name = "iops",
+ .type = QEMU_OPT_NUMBER,
+ .help = "limit total I/O operations per second",
+ },{
+ .name = "iops_rd",
+ .type = QEMU_OPT_NUMBER,
+ .help = "limit read operations per second",
+ },{
+ .name = "iops_wr",
+ .type = QEMU_OPT_NUMBER,
+ .help = "limit write operations per second",
+ },{
+ .name = "bps",
+ .type = QEMU_OPT_NUMBER,
+ .help = "limit total bytes per second",
+ },{
+ .name = "bps_rd",
+ .type = QEMU_OPT_NUMBER,
+ .help = "limit read bytes per second",
+ },{
+ .name = "bps_wr",
+ .type = QEMU_OPT_NUMBER,
+ .help = "limit write bytes per second",
+ },{
+ .name = "copy-on-read",
+ .type = QEMU_OPT_BOOL,
+ .help = "copy read data from backing file into image file",
+ },{
+ .name = "boot",
+ .type = QEMU_OPT_BOOL,
+ .help = "(deprecated, ignored)",
+ },
+ { /* end of list */ }
+ },
+};
projects / qemu.git / blobdiff