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2014-12-10block/hmp: Allow node-name in 'info block'Kevin Wolf1-1/+30
The optional parameter specifying a block device allows now to use a node-name instead of a drive name (and therefore to inspect any node in the graph). The new -n options allows listing all named nodes instead of BlockBackends. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-12-10block/hmp: Allow info = NULL in print_block_info()Kevin Wolf1-9/+25
This allows printing infos of BlockDriverStates that aren't at the root of the graph (and logically implementing a BlockBackend). Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-12-10block/hmp: Factor out print_block_info()Kevin Wolf1-95/+97
The new function prints the info for a single BlockDriverState. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-12-10block/qapi: Add cache information to query-blockKevin Wolf1-0/+8
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2014-12-10qmp: Add optional switch "query-nodes" in query-blockstatsFam Zheng1-1/+1
This bool option will allow query all the node names. It iterates all the BDSes that are assigned a name, also in this case don't query up the backing chain. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-09-26Add HMP command "info memory-devices"Zhu Guihua1-0/+38
Provides HMP equivalent of QMP query-memory-devices command. Signed-off-by: Zhu Guihua <zhugh.fnst@cn.fujitsu.com> Reviewed-By: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-09-22hmp: fix memory leak at hmp_info_block_jobs()Gonglei1-0/+2
Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-id: 1410874615-14292-1-git-send-email-arei.gonglei@huawei.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-02hmp: fix MemdevList memory leakChen Fan1-0/+2
the memdev_list in hmp_info_memdev() is never freed. so we use existent method qapi_free_MemdevList() to free it. and also we can use qapi_free_MemdevList() to replace list loops to clean up the memdev list in error path. Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Hu Tao <hutao@cn.fujitsu.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-09-02qom/object.c, hmp.c: fix string_output_get_string() memory leakChen Fan1-2/+4
string_output_get_string() uses g_string_free(str, false) to transfer the 'str' pointer to callers and never free it. Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Hu Tao <hutao@cn.fujitsu.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-07-01block: add backing-file option to block-streamJeff Cody1-1/+1
On some image chains, QEMU may not always be able to resolve the filenames properly, when updating the backing file of an image after a block job. For instance, certain relative pathnames may fail, or drives may have been specified originally by file descriptor (e.g. /dev/fd/???), or a relative protocol pathname may have been used. In these instances, QEMU may lack the information to be able to make the correct choice, but the user or management layer most likely does have that knowledge. With this extension to the block-stream api, the user is able to change the backing file of the active layer as part of the block-stream operation. This allows the change to be 'safe', in the sense that if the attempt to write the active image metadata fails, then the block-stream operation returns failure, without disrupting the guest. If a backing file string is not specified in the command, the backing file string to use is determined in the same manner as it was previously. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-27block: Add replaces argument to drive-mirrorBenoît Canet1-1/+1
drive-mirror will bdrv_swap the new BDS named node-name with the one pointed by replaces when the mirroring is finished. Signed-off-by: Benoit Canet <benoit@irqsave.net> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-06-27block: Add node-name argument to drive-mirrorBenoît Canet1-0/+1
This new argument can be used to specify the node-name of the new mirrored BDS. Signed-off-by: Benoit Canet <benoit@irqsave.net> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-06-24Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into stagingPeter Maydell1-2/+3
* remotes/qmp-unstable/queue/qmp: (43 commits) monitor: protect event emission monitor: protect outbuf and mux_out with mutex qemu-char: make writes thread-safe qemu-char: move pty_chr_update_read_handler around qemu-char: do not call chr_write directly qemu-char: introduce qemu_chr_alloc qapi event: clean up qapi event: convert QUORUM events qapi event: convert GUEST_PANICKED qapi event: convert BALLOON_CHANGE qmp: convert ACPI_DEVICE_OST event qapi event: convert SPICE events qapi event: convert VNC events qapi event: convert NIC_RX_FILTER_CHANGED qapi event: convert other BLOCK_JOB events qapi event: convert BLOCK_IMAGE_CORRUPTED qapi event: convert BLOCK_IO_ERROR and BLOCK_JOB_ERROR qapi event: convert DEVICE_TRAY_MOVED qapi event: convert DEVICE_DELETED qapi event: convert WATCHDOG ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-23qapi: adjust existing definesWenchao Xia1-2/+3
In order to let event defines use existing types later, instead of redefine new ones, some old type defines for spice and vnc are changed, and BlockErrorAction is moved from block.h to qapi schema. Note that BlockErrorAction is not merged with BlockdevOnError. At this point, VncInfo is not made a child of VncBasicInfo, because VncBasicInfo has mandatory fields where VncInfo makes them optional. Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-23qapi/hmp: use 'backend' instead of 'device' with memory backendIgor Mammedov1-1/+1
fixup documentation comments and HMP message/help text Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19hmp: add info memdevHu Tao1-0/+36
This is the hmp counterpart of qmp query-memdev. Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> MST: fix build on 32 bit
2014-05-20Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell1-0/+5
Block patches # gpg: Signature made Mon 19 May 2014 15:21:14 BST using RSA key ID C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" * remotes/kevin/tags/for-upstream: (22 commits) block: optimize zero writes with bdrv_write_zeroes blockdev: add a function to parse enum ids from strings util: add qemu_iovec_is_zero qcow1: Stricter backing file length check qcow1: Validate image size (CVE-2014-0223) qcow1: Validate L2 table size (CVE-2014-0222) qcow1: Check maximum cluster size qcow1: Make padding in the header explicit curl: Add usage documentation curl: Add sslverify option curl: Remove broken parsing of options from url curl: Fix build when curl_multi_socket_action isn't available qemu-iotests: Fix blkdebug in VM drive in 030 qemu-iotests: Fix core dump suppression in test 039 iotests: Add test for the JSON protocol block: Allow JSON filenames check-qdict: Add test for qdict_join() qdict: Add qdict_join() block: add test for vhdx image created by Disk2VHD block: vhdx - account for identical header sections ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-19block: optimize zero writes with bdrv_write_zeroesPeter Lieven1-0/+5
this patch tries to optimize zero write requests by automatically using bdrv_write_zeroes if it is supported by the format. This significantly speeds up file system initialization and should speed zero write test used to test backend storage performance. I ran the following 2 tests on my internal SSD with a 50G QCOW2 container and on an attached iSCSI storage. a) mkfs.ext4 -E lazy_itable_init=0,lazy_journal_init=0 /dev/vdX QCOW2 [off] [on] [unmap] ----- runtime: 14secs 1.1secs 1.1secs filesize: 937M 18M 18M iSCSI [off] [on] [unmap] ---- runtime: 9.3s 0.9s 0.9s b) dd if=/dev/zero of=/dev/vdX bs=1M oflag=direct QCOW2 [off] [on] [unmap] ----- runtime: 246secs 18secs 18secs filesize: 51G 192K 192K throughput: 203M/s 2.3G/s 2.3G/s iSCSI* [off] [on] [unmap] ---- runtime: 8mins 45secs 33secs throughput: 106M/s 1.2G/s 1.6G/s allocated: 100% 100% 0% * The storage was connected via an 1Gbit interface. It seems to internally handle writing zeroes via WRITESAME16 very fast. Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-05-15hmp: Call visit_end_struct() after visit_start_struct() succeedsMarkus Armbruster1-8/+8
When visit_start_struct() succeeds, visit_end_struct() must be called. hmp_object_add() doesn't when a member visit fails. As far as I can tell, the opts visitor copes okay with the misuse. Fix it anyway. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-09hmp: Guard against misuse of hmp_handle_error()Markus Armbruster1-1/+2
Null errp argument makes no sense. Assert it's not null, to make this explicit, and guard against misuse. All current callers pass non-null errp. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-08qmp hmp: Consistently name Error * objects err, and not errpMarkus Armbruster1-69/+69
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-05migration: expose xbzrle cache miss rateChenLiang1-0/+2
expose xbzrle cache miss rate Signed-off-by: ChenLiang <chenliang88@huawei.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-05-05migration: expose the bitmap_sync_count to the endChenLiang1-0/+2
expose the count that logs the times of updating the dirty bitmap to end user. Signed-off-by: ChenLiang <chenliang88@huawei.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-04-25HMP: support specifying dump format for dump-guest-memoryQiao Nuohan1-3/+22
Dumping guest memory is available to specify the dump format now. This patch adds options '-z|-l|-s' to HMP command dump-guest-memory to specify dumping in kdump-compression format, with zlib/lzo/snappy compression. And without these options ELF format will be used. The discussion about this feature is here: http://lists.nongnu.org/archive/html/qemu-devel/2014-03/msg04235.html Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com> Suggested-by: Christian Borntraeger <borntraeger@de.ibm.com> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> (on s390x/kvm) Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28dump: make kdump-compressed format available for 'dump-guest-memory'qiaonuohan1-1/+4
Make monitor command 'dump-guest-memory' be able to dump in kdump-compressed format. The command's usage: dump [-p] protocol [begin] [length] [format] 'format' is used to specified the format of vmcore and can be: 1. 'elf': ELF format, without compression 2. 'kdump-zlib': kdump-compressed format, with zlib-compressed 3. 'kdump-lzo': kdump-compressed format, with lzo-compressed 4. 'kdump-snappy': kdump-compressed format, with snappy-compressed Without 'format' being set, it is same as 'elf'. And if non-elf format is specified, paging and filter is not allowed. Note: 1. The kdump-compressed format is readable only with the crash utility and makedumpfile, and it can be smaller than the ELF format because of the compression support. 2. The kdump-compressed format is the 6th edition. Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-17Use error_is_set() only when necessaryMarkus Armbruster1-4/+4
error_is_set(&var) is the same as var != NULL, but it takes whole-program analysis to figure that out. Unnecessarily hard for optimizers, static checkers, and human readers. Dumb it down to obvious. Gets rid of several dozen Coverity false positives. Note that the obvious form is already used in many places. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-17hmp: migrate command (without -d) now blocks correctlySoramichi AKIYAMA1-1/+2
This patch fixes a timing issue that migrate command (without -d) does not block in some cases. The original version of hmp.c:hmp_migrate_status_cb checks if the migration status is 'active' or not to detect the completion of a migration. However, if this function is executed when the migration status is stil 'setup' (the status before 'active'), migration command returns immediately even if the user does not specify -d option. Signed-off-by: Soramichi Akiyama <akiyama@nii.ac.jp> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-01-24qmp: Allow to take external snapshots on bs graphs node.Benoît Canet1-1/+3
Signed-off-by: Benoit Canet <benoit@irqsave.net> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-24qmp: Allow block_resize to manipulate bs graph nodes.Benoît Canet1-1/+1
Signed-off-by: Benoit Canet <benoit@irqsave.net> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-24qmp: Allow to change password on named block driver states.Benoît Canet1-1/+1
Signed-off-by: Benoit Canet <benoit@irqsave.net> Reviewed-by: Fam Zheng <famz@redhat.com> There was two candidate ways to implement named node manipulation: 1) { 'command': 'block_passwd', 'data': {'*device': 'str', '*node-name': 'str', 'password': 'str'} } 2) { 'command': 'block_passwd', 'data': {'device': 'str', '*device-is-node': 'bool', 'password': 'str'} } Luiz proposed 1 and says 2 was an abuse of the QMP interface and proposed to rewrite the QMP block interface for 2.0. Luiz does not like in 1 the fact that 2 fields are optional but one of them must be specified leading to an abuse of the QMP semantic. Kevin argumented that 2 what a clear abuse of the device field and would not be practical when reading fast some log file because the user would read "device" and think that a device is manipulated when it's in fact a node name. Documentation of 1 make it pretty clear what to do for the user. Kevin argued that all bs are node including devices ones so 2 does not make sense. Kevin also argued that rewriting the QMP block interface would not make disapear the current one. Kevin pushed the argument that making the QAPI generator compatible with the semantic of the operation would need a rewrite that no one has done yet. A vote has been done on the list to elect the version to use and 1 won. For reference the complete thread is: "[Qemu-devel] [PATCH V4 4/7] qmp: Allow to change password on names block driver states." Signed-off-by: Benoit Canet <benoit@irqsave.net> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22readline: decouple readline from the monitorStefan Hajnoczi1-3/+3
Make the readline.c functionality reusable. Instead of calling monitor_printf() and monitor_flush() directly, invoke function pointers provided by the user. This way readline.c does not know about Monitor and other users will be able to make use of readline.c. Note that there is already an "opaque" argument to the ReadLineFunc callback. Consistently call it "readline_opaque" from now on to distinguish from the ReadLinePrintfFunc/ReadLineFlushFunc "opaque" argument. I also dropped the printf macro trickery since it's now highly unlikely that anyone modifying readline.c would call printf(3) directly. We no longer need this protection. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-06monitor: add object-add (QMP) and object_add (HMP) commandPaolo Bonzini1-0/+58
Add two commands that are the monitor counterparts of -object. The commands have the same Visitor-based implementation, but use different kinds of visitors so that the HMP command has a DWIM string-based syntax, while the QMP variant accepts a stricter JSON-based properties dictionary. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Tested-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-01-06monitor: add object-del (QMP) and object_del (HMP) commandPaolo Bonzini1-0/+9
These two commands invoke the "unparent" method of Object. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Tested-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-01-06qemu-monitor: HMP cpu-add wrapperJason J. Herne1-0/+10
Add HMP cpu-add wrapper to allow cpu hot plugging via monitor. Signed-off-by: Jason J. Herne <jjherne@us.ibm.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-10-17hmp: drop bogus "[not inserted]"Mike Qiu1-2/+0
Commit 3e9fab690d59ac15956c3733fe0794ce1ae4c4af ("block: Add support for throttling burst max in QMP and the command line.") introduced bogus "[not inserted]" output, possibly due to a merge failure. Remove this artifact. Output of 'info block' scsi0-hd0: /images/f18-ppc64.qcow2 (qcow2) [not inserted] scsi0-cd2: [not inserted] Removable device: not locked, tray closed floppy0: [not inserted] Removable device: not locked, tray closed sd0: [not inserted] Removable device: not locked, tray closed There will be no additional lines between scsi0-hd0 and scsi0-cd2. At the same time, scsi0-hd0 already inserted, but still has '[not inserted]' flag. This line should be removed. This patch is to solve this. Signed-off-by: Mike Qiu <qiudayu@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-09-17hmp: block-stream: fix typoAnthony Liguori1-1/+1
Found this by enabling C++ errors. The bool and enum arguments are mistakenly flipped. Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-09-12hmp: add interface hmp_snapshot_delete_blkdev_internalWenchao Xia1-0/+12
It is hard to make both id and name optional in hmp console as qmp interface, so this interface require user to specify name. Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-09-12hmp: add interface hmp_snapshot_blkdev_internalWenchao Xia1-0/+10
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-09-11Merge remote-tracking branch 'mdroth/qga-pull-2013-9-9' into stagingAnthony Liguori1-1/+1
# By Tomoki Sekiyama (10) and Paul Burton (1) # Via Michael Roth * mdroth/qga-pull-2013-9-9: QMP/qemu-ga-client: Make timeout longer for guest-fsfreeze-freeze command qemu-ga: Install Windows VSS provider on `qemu-ga -s install' qemu-ga: Call Windows VSS requester in fsfreeze command handler qemu-ga: Add Windows VSS provider and requester as DLL error: Add error_set_win32 and error_setg_win32 qemu-ga: Add configure options to specify path to Windows/VSS SDK Add a script to extract VSS SDK headers on POSIX system checkpatch.pl: Check .cpp files Add c++ keywords to QAPI helper script configure: Support configuring C++ compiler mips_malta: support up to 2GiB RAM Message-id: 1378755701-2051-1-git-send-email-mdroth@linux.vnet.ibm.com Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-09-09Add c++ keywords to QAPI helper scriptTomoki Sekiyama1-1/+1
Add c++ keywords to avoid errors in compiling with c++ compiler. This also renames class member of PciDeviceInfo to q_class. Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2013-09-06block: Add iops_size to do the iops accounting for a given io size.Benoît Canet1-2/+6
This feature can be used in case where users are avoiding the iops limit by doing jumbo I/Os hammering the storage backend. Signed-off-by: Benoit Canet <benoit@irqsave.net> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-09-06block: Add support for throttling burst max in QMP and the command line.Benoît Canet1-3/+29
The max parameter of the leaky bucket throttling algorithm can be used to allow the guest to do bursts. The max value is a pool of I/O that the guest can use without being throttled at all. Throttling is triggered once this pool is empty. Signed-off-by: Benoit Canet <benoit@irqsave.net> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22aio / timers: Switch entire codebase to the new timer APIAlex Bligh1-4/+4
This is an autogenerated patch using scripts/switch-timer-api. Switch the entire code base to using the new timer API. Note this patch may introduce some line length issues. Signed-off-by: Alex Bligh <alex@alex.org.uk> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-07-23rdma: account for the time spent in MIG_STATE_SETUP through QMPMichael R. Hines1-0/+4
Using the previous patches, we're now able to timestamp the SETUP state. Once we have this time, let the user know about it in the schema. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-07-15block: add drive_backup HMP commandStefan Hajnoczi1-0/+28
Make "drive_backup" available on the HMP monitor: drive_backup [-n] [-f] device target [format] The -n flag requests QEMU to reuse the image found in new-image-file, instead of recreating it from scratch. The -f flag requests QEMU to copy the whole disk, so that the result does not need a backing file. Note that this flag *must* currently be passed since the other sync modes ('none' and 'top') have not been implemented yet. Requiring it ensures that "drive_backup" behaves like "drive_mirror". Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-28hmp: Make "info block" output more readableKevin Wolf1-39/+55
HMP is meant for humans and you should notice it. This changes the output format to use a bit more space to display the information more readable and leaves out irrelevant information (e.g. mention only that an image is encrypted, but not when it's not; display I/O limits only if throttling is in effect; ...) Before: (qemu) info block ide0-hd0: removable=0 io-status=ok file=/tmp/overlay.qcow2 backing_file=/tmp/backing.img backing_file_depth=1 ro=0 drv=qcow2 encrypted=1 bps=0 bps_rd=0 bps_wr=0 iops=1024 iops_rd=0 iops_wr=0 ide1-cd0: removable=1 locked=0 tray-open=0 io-status=ok file=/home/kwolf/images/iso/Fedora-18-x86_64-Live-Desktop.iso ro=1 drv=raw encrypted=0 bps=0 bps_rd=0 bps_wr=0 iops=0 iops_rd=0 iops_wr=0 floppy0: removable=1 locked=0 tray-open=0 [not inserted] sd0: removable=1 locked=0 tray-open=0 [not inserted] After: (qemu) info block ide0-hd0: /tmp/overlay.qcow2 (qcow2, encrypted) Backing file: /tmp/backing.img (chain depth: 1) I/O limits: bps=0 bps_rd=0 bps_wr=0 iops=1024 iops_rd=0 iops_wr=0 ide1-cd0: /home/kwolf/images/iso/Fedora-18-x86_64-Live-Desktop.iso (raw, read-only) Removable device: not locked, tray closed floppy0: [not inserted] Removable device: not locked, tray closed sd0: [not inserted] Removable device: not locked, tray closed Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Acked-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-06-27rdma: export throughput w/ MigrationStats QMPMichael R. Hines1-0/+2
This exposes throughput (in megabits/sec) through QMP. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-07hmp: add parameters device and -v for info blockWenchao Xia1-9/+16
With these parameters, user can choose the information to be showed, to avoid message flood in the monitor. Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-07hmp: show ImageInfo in 'info block'Wenchao Xia1-0/+14
Now human monitor can show image details, include internal snapshot and backing chain info for every block device. Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-06Make qemu-io commands available in HMPKevin Wolf1-0/+18
It was decided to not make this command available in QMP in order to make clear that this is not supposed to be a stable API and should be used only for testing and debugging purposes. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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