#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",
typedef enum { MEDIA_DISK, MEDIA_CDROM } DriveMediaType;
/* Takes the ownership of bs_opts */
-static DriveInfo *blockdev_init(QDict *bs_opts,
- BlockInterfaceType type,
+static DriveInfo *blockdev_init(const char *file, QDict *bs_opts,
Error **errp)
{
const char *buf;
- const char *file = NULL;
const char *serial;
int ro = 0;
int bdrv_flags = 0;
qemu_opts_absorb_qdict(opts, bs_opts, &error);
if (error_is_set(&error)) {
error_propagate(errp, error);
- return NULL;
+ goto early_err;
}
if (id) {
ro = qemu_opt_get_bool(opts, "read-only", 0);
copy_on_read = qemu_opt_get_bool(opts, "copy-on-read", false);
- file = qemu_opt_get(opts, "file");
serial = qemu_opt_get(opts, "serial");
if ((buf = qemu_opt_get(opts, "discard")) != NULL) {
if (bdrv_parse_discard_flags(buf, &bdrv_flags) != 0) {
error_setg(errp, "invalid discard option");
- return NULL;
+ goto early_err;
}
}
/* this is the default */
} else {
error_setg(errp, "invalid aio option");
- return NULL;
+ goto early_err;
}
}
#endif
error_printf("Supported formats:");
bdrv_iterate_format(bdrv_format_print, NULL);
error_printf("\n");
- return NULL;
+ goto early_err;
}
drv = bdrv_find_format(buf);
if (!drv) {
error_setg(errp, "'%s' invalid format", buf);
- return NULL;
+ goto early_err;
}
}
if (!check_throttle_config(&cfg, &error)) {
error_propagate(errp, error);
- return NULL;
+ goto early_err;
}
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) {
- error_setg(errp, "werror is not supported by this bus type");
- return NULL;
- }
-
on_write_error = parse_block_error_action(buf, 0, &error);
if (error_is_set(&error)) {
error_propagate(errp, error);
- return NULL;
+ goto early_err;
}
}
on_read_error = BLOCKDEV_ON_ERROR_REPORT;
if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
- if (type != IF_IDE && type != IF_VIRTIO && type != IF_SCSI && type != IF_NONE) {
- error_report("rerror is not supported by this bus type");
- return NULL;
- }
-
on_read_error = parse_block_error_action(buf, 1, &error);
if (error_is_set(&error)) {
error_propagate(errp, error);
- return NULL;
+ goto early_err;
}
}
+ if (bdrv_find_node(qemu_opts_id(opts))) {
+ error_setg(errp, "device id=%s is conflicting with a node-name",
+ qemu_opts_id(opts));
+ goto early_err;
+ }
+
/* init */
dinfo = g_malloc0(sizeof(*dinfo));
dinfo->id = g_strdup(qemu_opts_id(opts));
dinfo->bdrv = bdrv_new(dinfo->id);
dinfo->bdrv->open_flags = snapshot ? BDRV_O_SNAPSHOT : 0;
dinfo->bdrv->read_only = ro;
- dinfo->type = type;
dinfo->refcount = 1;
if (serial != NULL) {
dinfo->serial = g_strdup(serial);
if (has_driver_specific_opts) {
file = NULL;
} else {
+ QDECREF(bs_opts);
+ qemu_opts_del(opts);
return dinfo;
}
}
return dinfo;
err:
- qemu_opts_del(opts);
- QDECREF(bs_opts);
bdrv_unref(dinfo->bdrv);
g_free(dinfo->id);
QTAILQ_REMOVE(&drives, dinfo, next);
g_free(dinfo);
+early_err:
+ QDECREF(bs_opts);
+ qemu_opts_del(opts);
return NULL;
}
.name = "addr",
.type = QEMU_OPT_STRING,
.help = "pci address (virtio only)",
+ },{
+ .name = "file",
+ .type = QEMU_OPT_STRING,
+ .help = "file name",
},
/* Options that are passed on, but have special semantics with -drive */
.name = "read-only",
.type = QEMU_OPT_BOOL,
.help = "open drive file as read-only",
+ },{
+ .name = "rerror",
+ .type = QEMU_OPT_STRING,
+ .help = "read error action",
+ },{
+ .name = "werror",
+ .type = QEMU_OPT_STRING,
+ .help = "write error action",
},{
.name = "copy-on-read",
.type = QEMU_OPT_BOOL,
int cyls, heads, secs, translation;
int max_devs, bus_id, unit_id, index;
const char *devaddr;
- bool read_only, copy_on_read;
+ const char *werror, *rerror;
+ bool read_only = false;
+ bool copy_on_read;
+ const char *filename;
Error *local_err = NULL;
/* Change legacy command line options into QMP ones */
bs_opts = qdict_new();
qemu_opts_to_qdict(all_opts, bs_opts);
- legacy_opts = qemu_opts_create_nofail(&qemu_legacy_drive_opts);
+ legacy_opts = qemu_opts_create(&qemu_legacy_drive_opts, NULL, 0,
+ &error_abort);
qemu_opts_absorb_qdict(legacy_opts, bs_opts, &local_err);
if (error_is_set(&local_err)) {
qerror_report_err(local_err);
media = MEDIA_DISK;
} else if (!strcmp(value, "cdrom")) {
media = MEDIA_CDROM;
- qdict_put(bs_opts, "read-only", qstring_from_str("on"));
+ read_only = true;
} else {
error_report("'%s' invalid media", value);
goto fail;
}
/* copy-on-read is disabled with a warning for read-only devices */
- read_only = qemu_opt_get_bool(legacy_opts, "read-only", false);
+ read_only |= qemu_opt_get_bool(legacy_opts, "read-only", false);
copy_on_read = qemu_opt_get_bool(legacy_opts, "copy-on-read", false);
if (read_only && copy_on_read) {
if (type == IF_VIRTIO) {
QemuOpts *devopts;
- devopts = qemu_opts_create_nofail(qemu_find_opts("device"));
+ devopts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
+ &error_abort);
if (arch_type == QEMU_ARCH_S390X) {
qemu_opt_set(devopts, "driver", "virtio-blk-s390");
} else {
}
}
+ filename = qemu_opt_get(legacy_opts, "file");
+
+ /* Check werror/rerror compatibility with if=... */
+ werror = qemu_opt_get(legacy_opts, "werror");
+ if (werror != NULL) {
+ if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO &&
+ type != IF_NONE) {
+ error_report("werror is not supported by this bus type");
+ goto fail;
+ }
+ qdict_put(bs_opts, "werror", qstring_from_str(werror));
+ }
+
+ rerror = qemu_opt_get(legacy_opts, "rerror");
+ if (rerror != NULL) {
+ if (type != IF_IDE && type != IF_VIRTIO && type != IF_SCSI &&
+ type != IF_NONE) {
+ error_report("rerror is not supported by this bus type");
+ goto fail;
+ }
+ qdict_put(bs_opts, "rerror", qstring_from_str(rerror));
+ }
+
/* Actual block device init: Functionality shared with blockdev-add */
- dinfo = blockdev_init(bs_opts, type, &local_err);
+ dinfo = blockdev_init(filename, bs_opts, &local_err);
if (dinfo == NULL) {
if (error_is_set(&local_err)) {
qerror_report_err(local_err);
dinfo->secs = secs;
dinfo->trans = translation;
+ dinfo->type = type;
dinfo->bus = bus_id;
dinfo->unit = unit_id;
dinfo->devaddr = devaddr;
qmp_transaction(&list, errp);
}
-void qmp_blockdev_snapshot_sync(const char *device, const char *snapshot_file,
+void qmp_blockdev_snapshot_sync(bool has_device, const char *device,
+ bool has_node_name, const char *node_name,
+ const char *snapshot_file,
+ bool has_snapshot_node_name,
+ const char *snapshot_node_name,
bool has_format, const char *format,
- bool has_mode, enum NewImageMode mode,
- Error **errp)
+ bool has_mode, NewImageMode mode, Error **errp)
{
BlockdevSnapshot snapshot = {
+ .has_device = has_device,
.device = (char *) device,
+ .has_node_name = has_node_name,
+ .node_name = (char *) node_name,
.snapshot_file = (char *) snapshot_file,
+ .has_snapshot_node_name = has_snapshot_node_name,
+ .snapshot_node_name = (char *) snapshot_node_name,
.has_format = has_format,
.format = (char *) format,
.has_mode = has_mode,
{
BlockDriver *drv;
int flags, ret;
+ QDict *options = NULL;
Error *local_err = NULL;
+ bool has_device = false;
const char *device;
+ bool has_node_name = false;
+ const char *node_name;
+ bool has_snapshot_node_name = false;
+ const char *snapshot_node_name;
const char *new_image_file;
const char *format = "qcow2";
enum NewImageMode mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS;
/* get parameters */
g_assert(action->kind == TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_SYNC);
+ has_device = action->blockdev_snapshot_sync->has_device;
device = action->blockdev_snapshot_sync->device;
+ has_node_name = action->blockdev_snapshot_sync->has_node_name;
+ node_name = action->blockdev_snapshot_sync->node_name;
+ has_snapshot_node_name =
+ action->blockdev_snapshot_sync->has_snapshot_node_name;
+ snapshot_node_name = action->blockdev_snapshot_sync->snapshot_node_name;
+
new_image_file = action->blockdev_snapshot_sync->snapshot_file;
if (action->blockdev_snapshot_sync->has_format) {
format = action->blockdev_snapshot_sync->format;
return;
}
- state->old_bs = bdrv_find(device);
- if (!state->old_bs) {
- error_set(errp, QERR_DEVICE_NOT_FOUND, device);
+ state->old_bs = bdrv_lookup_bs(has_device ? device : NULL,
+ has_node_name ? node_name : NULL,
+ &local_err);
+ if (error_is_set(&local_err)) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ if (has_node_name && !has_snapshot_node_name) {
+ error_setg(errp, "New snapshot node name missing");
+ return;
+ }
+
+ if (has_snapshot_node_name && bdrv_find_node(snapshot_node_name)) {
+ error_setg(errp, "New snapshot node name already existing");
return;
}
}
}
- if (bdrv_check_ext_snapshot(state->old_bs) != EXT_SNAPSHOT_ALLOWED) {
+ if (!bdrv_is_first_non_filter(state->old_bs)) {
error_set(errp, QERR_FEATURE_DISABLED, "snapshot");
return;
}
}
}
+ if (has_snapshot_node_name) {
+ options = qdict_new();
+ qdict_put(options, "node-name",
+ qstring_from_str(snapshot_node_name));
+ }
+
/* We will manually add the backing_hd field to the bs later */
state->new_bs = bdrv_new("");
/* TODO Inherit bs->options or only take explicit options with an
* extended QMP command? */
- ret = bdrv_open(state->new_bs, new_image_file, NULL,
+ ret = bdrv_open(state->new_bs, new_image_file, options,
flags | BDRV_O_NO_BACKING, drv, &local_err);
if (ret != 0) {
error_propagate(errp, local_err);
eject_device(bs, force, errp);
}
-void qmp_block_passwd(const char *device, const char *password, Error **errp)
+void qmp_block_passwd(bool has_device, const char *device,
+ bool has_node_name, const char *node_name,
+ const char *password, Error **errp)
{
+ Error *local_err = NULL;
BlockDriverState *bs;
int err;
- bs = bdrv_find(device);
- if (!bs) {
- error_set(errp, QERR_DEVICE_NOT_FOUND, device);
+ bs = bdrv_lookup_bs(has_device ? device : NULL,
+ has_node_name ? node_name : NULL,
+ &local_err);
+ if (error_is_set(&local_err)) {
+ error_propagate(errp, local_err);
return;
}
}
void qmp_change_blockdev(const char *device, const char *filename,
- bool has_format, const char *format, Error **errp)
+ const char *format, Error **errp)
{
BlockDriverState *bs;
BlockDriver *drv = NULL;
return 0;
}
-void qmp_block_resize(const char *device, int64_t size, Error **errp)
+void qmp_block_resize(bool has_device, const char *device,
+ bool has_node_name, const char *node_name,
+ int64_t size, Error **errp)
{
+ Error *local_err = NULL;
BlockDriverState *bs;
int ret;
- bs = bdrv_find(device);
- if (!bs) {
- error_set(errp, QERR_DEVICE_NOT_FOUND, device);
+ bs = bdrv_lookup_bs(has_device ? device : NULL,
+ has_node_name ? node_name : NULL,
+ &local_err);
+ if (error_is_set(&local_err)) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ if (!bdrv_is_first_non_filter(bs)) {
+ error_set(errp, QERR_FEATURE_DISABLED, "resize");
return;
}
return;
}
- commit_start(bs, base_bs, top_bs, speed, on_error, block_job_cb, bs,
- &local_err);
+ if (top_bs == bs) {
+ commit_active_start(bs, base_bs, speed, on_error, block_job_cb,
+ bs, &local_err);
+ } else {
+ commit_start(bs, base_bs, top_bs, speed, on_error, block_job_cb, bs,
+ &local_err);
+ }
if (local_err != NULL) {
error_propagate(errp, local_err);
return;
}
}
+BlockDeviceInfoList *qmp_query_named_block_nodes(Error **errp)
+{
+ return bdrv_named_nodes_list();
+}
+
#define DEFAULT_MIRROR_BUF_SIZE (10 << 20)
void qmp_drive_mirror(const char *device, const char *target,
if (!source && sync == MIRROR_SYNC_MODE_TOP) {
sync = MIRROR_SYNC_MODE_FULL;
}
+ if (sync == MIRROR_SYNC_MODE_NONE) {
+ source = bs;
+ }
size = bdrv_getlength(bs);
if (size < 0) {
return;
}
- if (sync == MIRROR_SYNC_MODE_FULL && mode != NEW_IMAGE_MODE_EXISTING) {
+ if ((sync == MIRROR_SYNC_MODE_FULL || !source)
+ && mode != NEW_IMAGE_MODE_EXISTING)
+ {
/* create new image w/o backing file */
assert(format && drv);
bdrv_img_create(target, format,
qdict_flatten(qdict);
- blockdev_init(qdict, IF_NONE, &local_err);
+ blockdev_init(NULL, qdict, &local_err);
if (error_is_set(&local_err)) {
error_propagate(errp, local_err);
goto fail;
.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,
projects / qemu.git / blobdiff