diff options
| -rw-r--r-- | block.c | 112 | ||||
| -rw-r--r-- | block.h | 5 | ||||
| -rw-r--r-- | block_int.h | 3 | ||||
| -rw-r--r-- | hmp.c | 42 | ||||
| -rw-r--r-- | hmp.h | 1 | ||||
| -rw-r--r-- | monitor.c | 11 | ||||
| -rw-r--r-- | qapi-schema.json | 85 | ||||
| -rw-r--r-- | qmp-commands.hx | 6 |
8 files changed, 167 insertions, 98 deletions
@@ -29,6 +29,7 @@ #include "module.h" #include "qemu-objects.h" #include "qemu-coroutine.h" +#include "qmp-commands.h" #ifdef CONFIG_BSD #include <sys/types.h> @@ -1824,106 +1825,53 @@ void bdrv_mon_event(const BlockDriverState *bdrv, qobject_decref(data); } -static void bdrv_print_dict(QObject *obj, void *opaque) +BlockInfoList *qmp_query_block(Error **errp) { - QDict *bs_dict; - Monitor *mon = opaque; - - bs_dict = qobject_to_qdict(obj); - - monitor_printf(mon, "%s: removable=%d", - qdict_get_str(bs_dict, "device"), - qdict_get_bool(bs_dict, "removable")); - - if (qdict_get_bool(bs_dict, "removable")) { - monitor_printf(mon, " locked=%d", qdict_get_bool(bs_dict, "locked")); - monitor_printf(mon, " tray-open=%d", - qdict_get_bool(bs_dict, "tray-open")); - } - - if (qdict_haskey(bs_dict, "io-status")) { - monitor_printf(mon, " io-status=%s", qdict_get_str(bs_dict, "io-status")); - } - - if (qdict_haskey(bs_dict, "inserted")) { - QDict *qdict = qobject_to_qdict(qdict_get(bs_dict, "inserted")); - - monitor_printf(mon, " file="); - monitor_print_filename(mon, qdict_get_str(qdict, "file")); - if (qdict_haskey(qdict, "backing_file")) { - monitor_printf(mon, " backing_file="); - monitor_print_filename(mon, qdict_get_str(qdict, "backing_file")); - } - monitor_printf(mon, " ro=%d drv=%s encrypted=%d", - qdict_get_bool(qdict, "ro"), - qdict_get_str(qdict, "drv"), - qdict_get_bool(qdict, "encrypted")); - } else { - monitor_printf(mon, " [not inserted]"); - } - - monitor_printf(mon, "\n"); -} - -void bdrv_info_print(Monitor *mon, const QObject *data) -{ - qlist_iter(qobject_to_qlist(data), bdrv_print_dict, mon); -} - -static const char *const io_status_name[BLOCK_DEVICE_IO_STATUS_MAX] = { - [BLOCK_DEVICE_IO_STATUS_OK] = "ok", - [BLOCK_DEVICE_IO_STATUS_FAILED] = "failed", - [BLOCK_DEVICE_IO_STATUS_NOSPACE] = "nospace", -}; - -void bdrv_info(Monitor *mon, QObject **ret_data) -{ - QList *bs_list; + BlockInfoList *head = NULL, *cur_item = NULL; BlockDriverState *bs; - bs_list = qlist_new(); - QTAILQ_FOREACH(bs, &bdrv_states, list) { - QObject *bs_obj; - QDict *bs_dict; + BlockInfoList *info = g_malloc0(sizeof(*info)); - bs_obj = qobject_from_jsonf("{ 'device': %s, 'type': 'unknown', " - "'removable': %i, 'locked': %i }", - bs->device_name, - bdrv_dev_has_removable_media(bs), - bdrv_dev_is_medium_locked(bs)); - bs_dict = qobject_to_qdict(bs_obj); + info->value = g_malloc0(sizeof(*info->value)); + info->value->device = g_strdup(bs->device_name); + info->value->type = g_strdup("unknown"); + info->value->locked = bdrv_dev_is_medium_locked(bs); + info->value->removable = bdrv_dev_has_removable_media(bs); if (bdrv_dev_has_removable_media(bs)) { - qdict_put(bs_dict, "tray-open", - qbool_from_int(bdrv_dev_is_tray_open(bs))); + info->value->has_tray_open = true; + info->value->tray_open = bdrv_dev_is_tray_open(bs); } if (bdrv_iostatus_is_enabled(bs)) { - qdict_put(bs_dict, "io-status", - qstring_from_str(io_status_name[bs->iostatus])); + info->value->has_io_status = true; + info->value->io_status = bs->iostatus; } if (bs->drv) { - QObject *obj; - - obj = qobject_from_jsonf("{ 'file': %s, 'ro': %i, 'drv': %s, " - "'encrypted': %i }", - bs->filename, bs->read_only, - bs->drv->format_name, - bdrv_is_encrypted(bs)); - if (bs->backing_file[0] != '\0') { - QDict *qdict = qobject_to_qdict(obj); - qdict_put(qdict, "backing_file", - qstring_from_str(bs->backing_file)); + info->value->has_inserted = true; + info->value->inserted = g_malloc0(sizeof(*info->value->inserted)); + info->value->inserted->file = g_strdup(bs->filename); + info->value->inserted->ro = bs->read_only; + info->value->inserted->drv = g_strdup(bs->drv->format_name); + info->value->inserted->encrypted = bs->encrypted; + if (bs->backing_file[0]) { + info->value->inserted->has_backing_file = true; + info->value->inserted->backing_file = g_strdup(bs->backing_file); } + } - qdict_put_obj(bs_dict, "inserted", obj); + /* XXX: waiting for the qapi to support GSList */ + if (!cur_item) { + head = cur_item = info; + } else { + cur_item->next = info; + cur_item = info; } - qlist_append_obj(bs_list, bs_obj); } - *ret_data = QOBJECT(bs_list); + return head; } static void bdrv_stats_iter(QObject *data, void *opaque) @@ -77,11 +77,6 @@ typedef enum { BDRV_ACTION_REPORT, BDRV_ACTION_IGNORE, BDRV_ACTION_STOP } BlockMonEventAction; -typedef enum { - BLOCK_DEVICE_IO_STATUS_OK, BLOCK_DEVICE_IO_STATUS_FAILED, - BLOCK_DEVICE_IO_STATUS_NOSPACE, BLOCK_DEVICE_IO_STATUS_MAX -} BlockIOStatus; - void bdrv_iostatus_enable(BlockDriverState *bs); void bdrv_iostatus_reset(BlockDriverState *bs); void bdrv_iostatus_disable(BlockDriverState *bs); diff --git a/block_int.h b/block_int.h index 3929ec90a5..f4547f6d93 100644 --- a/block_int.h +++ b/block_int.h @@ -29,6 +29,7 @@ #include "qemu-queue.h" #include "qemu-coroutine.h" #include "qemu-timer.h" +#include "qapi-types.h" #define BLOCK_FLAG_ENCRYPT 1 #define BLOCK_FLAG_COMPAT6 4 @@ -203,7 +204,7 @@ struct BlockDriverState { int cyls, heads, secs, translation; BlockErrorAction on_read_error, on_write_error; bool iostatus_enabled; - BlockIOStatus iostatus; + BlockDeviceIoStatus iostatus; char device_name[32]; unsigned long *dirty_bitmap; int64_t dirty_count; @@ -184,6 +184,48 @@ void hmp_info_cpus(Monitor *mon) qapi_free_CpuInfoList(cpu_list); } +void hmp_info_block(Monitor *mon) +{ + BlockInfoList *block_list, *info; + + block_list = qmp_query_block(NULL); + + for (info = block_list; info; info = info->next) { + monitor_printf(mon, "%s: removable=%d", + info->value->device, info->value->removable); + + if (info->value->removable) { + monitor_printf(mon, " locked=%d", info->value->locked); + monitor_printf(mon, " tray-open=%d", info->value->tray_open); + } + + if (info->value->has_io_status) { + monitor_printf(mon, " io-status=%s", + BlockDeviceIoStatus_lookup[info->value->io_status]); + } + + if (info->value->has_inserted) { + monitor_printf(mon, " file="); + monitor_print_filename(mon, info->value->inserted->file); + + if (info->value->inserted->has_backing_file) { + monitor_printf(mon, " backing_file="); + monitor_print_filename(mon, info->value->inserted->backing_file); + } + monitor_printf(mon, " ro=%d drv=%s encrypted=%d", + info->value->inserted->ro, + info->value->inserted->drv, + info->value->inserted->encrypted); + } else { + monitor_printf(mon, " [not inserted]"); + } + + monitor_printf(mon, "\n"); + } + + qapi_free_BlockInfoList(block_list); +} + void hmp_quit(Monitor *mon, const QDict *qdict) { monitor_suspend(mon); @@ -26,6 +26,7 @@ void hmp_info_chardev(Monitor *mon); void hmp_info_mice(Monitor *mon); void hmp_info_migrate(Monitor *mon); void hmp_info_cpus(Monitor *mon); +void hmp_info_block(Monitor *mon); void hmp_quit(Monitor *mon, const QDict *qdict); void hmp_stop(Monitor *mon, const QDict *qdict); void hmp_system_reset(Monitor *mon, const QDict *qdict); @@ -2674,8 +2674,7 @@ static const mon_cmd_t info_cmds[] = { .args_type = "", .params = "", .help = "show the block devices", - .user_print = bdrv_info_print, - .mhandler.info_new = bdrv_info, + .mhandler.info = hmp_info_block, }, { .name = "blockstats", @@ -2961,14 +2960,6 @@ static const mon_cmd_t qmp_cmds[] = { static const mon_cmd_t qmp_query_cmds[] = { { - .name = "block", - .args_type = "", - .params = "", - .help = "show the block devices", - .user_print = bdrv_info_print, - .mhandler.info_new = bdrv_info, - }, - { .name = "blockstats", .args_type = "", .params = "", diff --git a/qapi-schema.json b/qapi-schema.json index a1bf90deea..5e3570e53d 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -352,6 +352,91 @@ { 'command': 'query-cpus', 'returns': ['CpuInfo'] } ## +# @BlockDeviceInfo: +# +# Information about the backing device for a block device. +# +# @file: the filename of the backing device +# +# @ro: true if the backing device was open read-only +# +# @drv: the name of the block format used to open the backing device. As of +# 0.14.0 this can be: 'blkdebug', 'bochs', 'cloop', 'cow', 'dmg', +# 'file', 'file', 'ftp', 'ftps', 'host_cdrom', 'host_device', +# 'host_floppy', 'http', 'https', 'nbd', 'parallels', 'qcow', +# 'qcow2', 'raw', 'tftp', 'vdi', 'vmdk', 'vpc', 'vvfat' +# +# @backing_file: #optional the name of the backing file (for copy-on-write) +# +# @encrypted: true if the backing device is encrypted +# +# Since: 0.14.0 +# +# Notes: This interface is only found in @BlockInfo. +## +{ 'type': 'BlockDeviceInfo', + 'data': { 'file': 'str', 'ro': 'bool', 'drv': 'str', + '*backing_file': 'str', 'encrypted': 'bool' } } + +## +# @BlockDeviceIoStatus: +# +# An enumeration of block device I/O status. +# +# @ok: The last I/O operation has succeeded +# +# @failed: The last I/O operation has failed +# +# @nospace: The last I/O operation has failed due to a no-space condition +# +# Since: 1.0 +## +{ 'enum': 'BlockDeviceIoStatus', 'data': [ 'ok', 'failed', 'nospace' ] } + +## +# @BlockInfo: +# +# Block device information. This structure describes a virtual device and +# the backing device associated with it. +# +# @device: The device name associated with the virtual device. +# +# @type: This field is returned only for compatibility reasons, it should +# not be used (always returns 'unknown') +# +# @removable: True if the device supports removable media. +# +# @locked: True if the guest has locked this device from having its media +# removed +# +# @tray_open: #optional True if the device has a tray and it is open +# (only present if removable is true) +# +# @io-status: #optional @BlockDeviceIoStatus. Only present if the device +# supports it and the VM is configured to stop on errors +# +# @inserted: #optional @BlockDeviceInfo describing the device if media is +# present +# +# Since: 0.14.0 +## +{ 'type': 'BlockInfo', + 'data': {'device': 'str', 'type': 'str', 'removable': 'bool', + 'locked': 'bool', '*inserted': 'BlockDeviceInfo', + '*tray_open': 'bool', '*io-status': 'BlockDeviceIoStatus'} } + +## +# @query-block: +# +# Get a list of BlockInfo for all virtual block devices. +# +# Returns: a list of @BlockInfo describing each virtual block device +# +# Since: 0.14.0 +## +{ 'command': 'query-block', 'returns': ['BlockInfo'] } + +## # @quit: # # This command will cause the QEMU process to exit gracefully. While every diff --git a/qmp-commands.hx b/qmp-commands.hx index 434ce6cba6..0cf0be7e0d 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -1198,6 +1198,12 @@ Example: EQMP + { + .name = "query-block", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_block, + }, + SQMP query-blockstats ---------------- |