* later. See the COPYING file in the top-level directory.
*/
-#include "block.h"
#include "blockdev.h"
+#include "hw/block-common.h"
+#include "blockjob.h"
#include "monitor.h"
#include "qerror.h"
#include "qemu-option.h"
qemu_bh_schedule(s->bh);
}
-static int parse_block_error_action(const char *buf, int is_read)
+static int parse_block_error_action(const char *buf, bool is_read)
{
if (!strcmp(buf, "ignore")) {
- return BLOCK_ERR_IGNORE;
+ return BLOCKDEV_ON_ERROR_IGNORE;
} else if (!is_read && !strcmp(buf, "enospc")) {
- return BLOCK_ERR_STOP_ENOSPC;
+ return BLOCKDEV_ON_ERROR_ENOSPC;
} else if (!strcmp(buf, "stop")) {
- return BLOCK_ERR_STOP_ANY;
+ return BLOCKDEV_ON_ERROR_STOP;
} else if (!strcmp(buf, "report")) {
- return BLOCK_ERR_REPORT;
+ return BLOCKDEV_ON_ERROR_REPORT;
} else {
error_report("'%s' invalid %s error action",
buf, is_read ? "read" : "write");
{
const char *buf;
const char *file = NULL;
- char devname[128];
const char *serial;
const char *mediastr = "";
BlockInterfaceType type;
serial = qemu_opt_get(opts, "serial");
if ((buf = qemu_opt_get(opts, "if")) != NULL) {
- pstrcpy(devname, sizeof(devname), buf);
for (type = 0; type < IF_COUNT && strcmp(buf, if_name[type]); type++)
;
if (type == IF_COUNT) {
}
} 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 (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
+ if (cyls < 1) {
error_report("invalid physical cyls number");
return NULL;
}
- if (heads < 1 || (type == IF_IDE && heads > 16)) {
+ if (heads < 1) {
error_report("invalid physical heads number");
return NULL;
}
- if (secs < 1 || (type == IF_IDE && secs > 63)) {
+ if (secs < 1) {
error_report("invalid physical secs number");
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) {
error_report("invalid cache option");
#endif
if ((buf = qemu_opt_get(opts, "format")) != NULL) {
- if (strcmp(buf, "?") == 0) {
- error_printf("Supported formats:");
- bdrv_iterate_format(bdrv_format_print, NULL);
- error_printf("\n");
- return NULL;
+ if (is_help_option(buf)) {
+ error_printf("Supported formats:");
+ bdrv_iterate_format(bdrv_format_print, NULL);
+ error_printf("\n");
+ return NULL;
}
drv = bdrv_find_whitelisted_format(buf);
if (!drv) {
return NULL;
}
- on_write_error = BLOCK_ERR_STOP_ENOSPC;
+ 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_report("werror is not supported by this bus type");
}
}
- on_read_error = BLOCK_ERR_REPORT;
+ 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");
mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
if (max_devs)
snprintf(dinfo->id, 32, "%s%i%s%i",
- devname, bus_id, mediastr, unit_id);
+ if_name[type], bus_id, mediastr, unit_id);
else
snprintf(dinfo->id, 32, "%s%s%i",
- devname, mediastr, unit_id);
+ if_name[type], mediastr, unit_id);
}
dinfo->bdrv = bdrv_new(dinfo->id);
+ dinfo->bdrv->open_flags = snapshot ? BDRV_O_SNAPSHOT : 0;
+ dinfo->bdrv->read_only = ro;
dinfo->devaddr = devaddr;
dinfo->type = type;
dinfo->bus = bus_id;
dinfo->unit = unit_id;
+ dinfo->cyls = cyls;
+ dinfo->heads = heads;
+ dinfo->secs = secs;
+ dinfo->trans = translation;
dinfo->opts = opts;
dinfo->refcount = 1;
- if (serial) {
- pstrcpy(dinfo->serial, sizeof(dinfo->serial), serial);
- }
+ dinfo->serial = serial;
QTAILQ_INSERT_TAIL(&drives, dinfo, next);
bdrv_set_on_error(dinfo->bdrv, on_read_error, on_write_error);
case IF_SCSI:
case IF_XEN:
case IF_NONE:
- switch(media) {
- case MEDIA_DISK:
- if (cyls != 0) {
- bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
- bdrv_set_translation_hint(dinfo->bdrv, translation);
- }
- break;
- case MEDIA_CDROM:
- dinfo->media_cd = 1;
- break;
- }
+ dinfo->media_cd = media == MEDIA_CDROM;
break;
case IF_SD:
case IF_FLOPPY:
bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
+ if (ro && copy_on_read) {
+ error_report("warning: disabling copy_on_read on readonly drive");
+ }
+
ret = bdrv_open(dinfo->bdrv, file, bdrv_flags, drv);
if (ret < 0) {
error_report("could not open disk image %s: %s",
QSIMPLEQ_FOREACH(states, &snap_bdrv_states, entry) {
/* This removes our old bs from the bdrv_states, and adds the new bs */
bdrv_append(states->new_bs, states->old_bs);
+ /* We don't need (or want) to use the transactional
+ * bdrv_reopen_multiple() across all the entries at once, because we
+ * don't want to abort all of them if one of them fails the reopen */
+ bdrv_reopen(states->new_bs, states->new_bs->open_flags & ~BDRV_O_RDWR,
+ NULL);
}
/* success */
QSIMPLEQ_FOREACH_SAFE(states, &snap_bdrv_states, entry, next) {
g_free(states);
}
- return;
}
job->speed);
}
-static void block_stream_cb(void *opaque, int ret)
+static void block_job_cb(void *opaque, int ret)
{
BlockDriverState *bs = opaque;
QObject *obj;
- trace_block_stream_cb(bs, bs->job, ret);
+ trace_block_job_cb(bs, bs->job, ret);
assert(bs->job);
obj = qobject_from_block_job(bs->job);
}
void qmp_block_stream(const char *device, bool has_base,
- const char *base, bool has_speed,
- int64_t speed, Error **errp)
+ const char *base, bool has_speed, int64_t speed,
+ bool has_on_error, BlockdevOnError on_error,
+ Error **errp)
{
BlockDriverState *bs;
BlockDriverState *base_bs = NULL;
Error *local_err = NULL;
+ if (!has_on_error) {
+ on_error = BLOCKDEV_ON_ERROR_REPORT;
+ }
+
bs = bdrv_find(device);
if (!bs) {
error_set(errp, QERR_DEVICE_NOT_FOUND, device);
}
stream_start(bs, base_bs, base, has_speed ? speed : 0,
- block_stream_cb, bs, &local_err);
+ on_error, block_job_cb, bs, &local_err);
if (error_is_set(&local_err)) {
error_propagate(errp, local_err);
return;
trace_qmp_block_stream(bs, bs->job);
}
+void qmp_block_commit(const char *device,
+ bool has_base, const char *base, const char *top,
+ bool has_speed, int64_t speed,
+ Error **errp)
+{
+ BlockDriverState *bs;
+ BlockDriverState *base_bs, *top_bs;
+ Error *local_err = NULL;
+ /* This will be part of the QMP command, if/when the
+ * BlockdevOnError change for blkmirror makes it in
+ */
+ BlockdevOnError on_error = BLOCKDEV_ON_ERROR_REPORT;
+
+ /* drain all i/o before commits */
+ bdrv_drain_all();
+
+ bs = bdrv_find(device);
+ if (!bs) {
+ error_set(errp, QERR_DEVICE_NOT_FOUND, device);
+ return;
+ }
+ if (base && has_base) {
+ base_bs = bdrv_find_backing_image(bs, base);
+ } else {
+ base_bs = bdrv_find_base(bs);
+ }
+
+ if (base_bs == NULL) {
+ error_set(errp, QERR_BASE_NOT_FOUND, base ? base : "NULL");
+ return;
+ }
+
+ /* default top_bs is the active layer */
+ top_bs = bs;
+
+ if (top) {
+ if (strcmp(bs->filename, top) != 0) {
+ top_bs = bdrv_find_backing_image(bs, top);
+ }
+ }
+
+ if (top_bs == NULL) {
+ error_setg(errp, "Top image file %s not found", top ? top : "NULL");
+ return;
+ }
+
+ 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;
+ }
+ /* 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;
BlockJob *job = find_block_job(device);
if (!job) {
- error_set(errp, QERR_DEVICE_NOT_ACTIVE, device);
+ error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device);
return;
}
block_job_set_speed(job, speed, errp);
}
-void qmp_block_job_cancel(const char *device, Error **errp)
+void qmp_block_job_cancel(const char *device,
+ bool has_force, bool force, Error **errp)
{
BlockJob *job = find_block_job(device);
+ if (!has_force) {
+ force = false;
+ }
+
if (!job) {
- error_set(errp, QERR_DEVICE_NOT_ACTIVE, device);
+ error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device);
+ return;
+ }
+ if (job->paused && !force) {
+ error_set(errp, QERR_BLOCK_JOB_PAUSED, device);
return;
}
block_job_cancel(job);
}
+void qmp_block_job_pause(const char *device, Error **errp)
+{
+ BlockJob *job = find_block_job(device);
+
+ if (!job) {
+ error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device);
+ return;
+ }
+
+ trace_qmp_block_job_pause(job);
+ block_job_pause(job);
+}
+
+void qmp_block_job_resume(const char *device, Error **errp)
+{
+ BlockJob *job = find_block_job(device);
+
+ if (!job) {
+ error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device);
+ return;
+ }
+
+ trace_qmp_block_job_resume(job);
+ block_job_resume(job);
+}
+
static void do_qmp_query_block_jobs_one(void *opaque, BlockDriverState *bs)
{
BlockJobInfoList **prev = opaque;
BlockJob *job = bs->job;
if (job) {
- BlockJobInfoList *elem;
- BlockJobInfo *info = g_new(BlockJobInfo, 1);
- *info = (BlockJobInfo){
- .type = g_strdup(job->job_type->job_type),
- .device = g_strdup(bdrv_get_device_name(bs)),
- .len = job->len,
- .offset = job->offset,
- .speed = job->speed,
- };
-
- elem = g_new0(BlockJobInfoList, 1);
- elem->value = info;
-
+ BlockJobInfoList *elem = g_new0(BlockJobInfoList, 1);
+ elem->value = block_job_query(bs->job);
(*prev)->next = elem;
*prev = elem;
}
projects / qemu.git / blobdiff