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2016-09-23block: Remove BB interface from blockdev-add/delKevin Wolf
With this patch, blockdev-add always works on a node level, i.e. it creates a BDS, but no BB. Consequently, x-blockdev-del doesn't need the 'device' option any more, but 'node-name' becomes mandatory. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-09-23block: Accept device model name for block_set_io_throttleKevin Wolf
In order to remove the need for BlockBackend names in the external API, we want to allow qdev device names in all device related commands. This converts block_set_io_throttle to accept a qdev device name. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-09-23block: Accept device model name for blockdev-change-mediumKevin Wolf
In order to remove the need for BlockBackend names in the external API, we want to allow qdev device names in all device related commands. This converts blockdev-change-medium to accept a qdev device name. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-09-23block: Accept device model name for ejectKevin Wolf
In order to remove the need for BlockBackend names in the external API, we want to allow qdev device names in all device related commands. This converts eject to accept a qdev device name. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-09-23block: Accept device model name for x-blockdev-remove-mediumKevin Wolf
In order to remove the need for BlockBackend names in the external API, we want to allow qdev device names in all device related commands. This converts x-blockdev-remove-medium to accept a qdev device name. As the command is experimental, we can still remove the 'device' option that uses the BlockBackend name. This requires some test case changes and is left for another series. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-09-23block: Accept device model name for x-blockdev-insert-mediumKevin Wolf
In order to remove the need for BlockBackend names in the external API, we want to allow qdev device names in all device related commands. This converts x-blockdev-insert-medium to accept a qdev device name. As the command is experimental, we can still remove the 'device' option that uses the BlockBackend name. This requires some test case changes and is left for another series. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-09-23block: Accept device model name for blockdev-open/close-trayKevin Wolf
In order to remove the need for BlockBackend names in the external API, we want to allow qdev device names in all device related commands. This converts blockdev-open/close-tray to accept a qdev device name. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-09-23block: Fix 'since' for compressed Drive/BlockdevBackupKevin Wolf
These patches missed 2.7, update the QAPI documentation. Reported-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-09-19Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2016-09-19' into ↵Peter Maydell
staging QAPI patches for 2016-09-19 # gpg: Signature made Mon 19 Sep 2016 17:27:42 BST # gpg: using RSA key 0x3870B400EB918653 # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" # Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653 * remotes/armbru/tags/pull-qapi-2016-09-19: Replace qmp-commands.hx by docs/qmp-commands.txt qmp-commands.hx: fix some styling build-sys: remove qmp-commands-old.h monitor: use qmp_dispatch() tests: add a test to check invalid args qapi: check invalid arguments on no-args commands qapi: remove the "middle" mode monitor: remove mhandler.cmd_new monitor: implement 'qmp_query_commands' without qmp_cmds monitor: use qmp_find_command() (using generated qapi code) qapi: export the marshallers qmp: Hack to keep commands configuration-specific qapi: Support unregistering QMP commands monitor: register gen:false commands manually monitor: simplify invalid_qmp_mode() qapi-schema: add 'device_add' qapi-schema: use generated marshaller for 'qmp_capabilities' build-sys: define QEMU_VERSION_{MAJOR, MINOR, MICRO} Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-19qapi: Support unregistering QMP commandsMarkus Armbruster
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20160912091913.15831-7-marcandre.lureau@redhat.com>
2016-09-19crypto: increase default pbkdf2 time for luks to 2 secondsDaniel P. Berrange
cryptsetup recently increased the default pbkdf2 time to 2 seconds to partially mitigate improvements in hardware performance wrt brute-forcing the pbkdf algorithm. This updates QEMU defaults to match. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-09-19crypto: make PBKDF iterations configurable for LUKS formatDaniel P. Berrange
As protection against bruteforcing passphrases, the PBKDF algorithm is tuned by counting the number of iterations needed to produce 1 second of running time. If the machine that the image will be used on is much faster than the machine where the image is created, it can be desirable to raise the number of iterations. This change adds a new 'iter-time' property that allows the user to choose the iteration wallclock time. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-09-13Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into ↵Peter Maydell
staging Pull request v2: * Fixed qcow2 sanitizer warnings [Peter] * Renamed get_error test cases to get_error_all to avoid tripping "error:" grep scripts [Peter] * Added Fam's iothread stop patch # gpg: Signature made Tue 13 Sep 2016 11:02:30 BST # gpg: using RSA key 0x9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha/tags/block-pull-request: iothread: Stop threads before main() quits tests: fix qvirtqueue_kick MAINTAINERS: add maintainer for replication support replication driver in blockdev-add tests: add unit test case for replication replication: Implement new driver for block replication replication: Introduce new APIs to do replication operation configure: support replication mirror: auto complete active commit docs: block replication's description block: Link backup into block core Backup: export interfaces for extra serialization Backup: clear all bitmap when doing block checkpoint block: unblock backup operations in backing file virtio-blk: rename virtio_device_info to virtio_blk_info linux-aio: process completions from ioq_submit() linux-aio: split processing events function linux-aio: consume events in userspace instead of calling io_getevents qcow2: avoid memcpy(dst, NULL, len) Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-13support replication driver in blockdev-addWen Congyang
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com> Signed-off-by: Changlong Xie <xiecl.fnst@cn.fujitsu.com> Signed-off-by: Wang WeiWei <wangww.fnst@cn.fujitsu.com> Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1469602913-20979-12-git-send-email-xiecl.fnst@cn.fujitsu.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-09-13replication: Introduce new APIs to do replication operationChanglong Xie
This commit introduces six replication interfaces(for block, network etc). Firstly we can use replication_(new/remove) to create/destroy replication instances, then in migration we can use replication_(start/stop/do_checkpoint /get_error)_all to handle all replication operations. More detail please refer to replication.h Signed-off-by: Wen Congyang <wency@cn.fujitsu.com> Signed-off-by: Changlong Xie <xiecl.fnst@cn.fujitsu.com> Signed-off-by: Wang WeiWei <wangww.fnst@cn.fujitsu.com> Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Message-id: 1469602913-20979-9-git-send-email-xiecl.fnst@cn.fujitsu.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-09-13qapi/block-core: add doc describing GlusterServer vs. SocketAddressPrasanna Kumar Kalever
Added documentation describing relation between GlusterServer and SocketAddress qapi schemas. Thanks to Markus Armbruster <armbru@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com> Message-id: 1471715924-3642-1-git-send-email-prasanna.kalever@redhat.com Signed-off-by: Jeff Cody <jcody@redhat.com>
2016-09-13block/gluster: add support to choose libgfapi logfilePrasanna Kumar Kalever
currently all the libgfapi logs defaults to '/dev/stderr' as it was hardcoded in a call to glfs logging api. When the debug level is chosen to DEBUG/TRACE, gfapi logs will be huge and fill/overflow the console view. This patch provides a commandline option to mention log file path which helps in logging to the specified file and also help in persisting the gfapi logs. Usage: ----- *URI Style: --------- -drive file=gluster://hostname/volname/image.qcow2,file.debug=9,\ file.logfile=/var/log/qemu/qemu-gfapi.log *JSON Style: ---------- 'json:{ "driver":"qcow2", "file":{ "driver":"gluster", "volume":"volname", "path":"image.qcow2", "debug":"9", "logfile":"/var/log/qemu/qemu-gfapi.log", "server":[ { "type":"tcp", "host":"1.2.3.4", "port":24007 }, { "type":"unix", "socket":"/var/run/glusterd.socket" } ] } }' Reviewed-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com> Signed-off-by: Jeff Cody <jcody@redhat.com>
2016-09-05blockdev-backup: added support for data compressionPavel Butsykin
The idea is simple - backup is "written-once" data. It is written block by block and it is large enough. It would be nice to save storage space and compress it. Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Jeff Cody <jcody@redhat.com> CC: Markus Armbruster <armbru@redhat.com> CC: Eric Blake <eblake@redhat.com> CC: John Snow <jsnow@redhat.com> CC: Stefan Hajnoczi <stefanha@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-09-05drive-backup: added support for data compressionPavel Butsykin
The idea is simple - backup is "written-once" data. It is written block by block and it is large enough. It would be nice to save storage space and compress it. The patch adds a flag to the qmp/hmp drive-backup command which enables block compression. Compression should be implemented in the format driver to enable this feature. There are some limitations of the format driver to allow compressed writes. We can write data only once. Though for backup this is perfectly fine. These limitations are maintained by the driver and the error will be reported if we are doing something wrong. Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Jeff Cody <jcody@redhat.com> CC: Markus Armbruster <armbru@redhat.com> CC: Eric Blake <eblake@redhat.com> CC: John Snow <jsnow@redhat.com> CC: Stefan Hajnoczi <stefanha@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-09-05block: simplify blockdev-backupPavel Butsykin
Now that we can support boxed commands, use it to greatly reduce the number of parameters (and likelihood of getting out of sync) when adjusting blockdev-backup parameters. Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Jeff Cody <jcody@redhat.com> CC: Markus Armbruster <armbru@redhat.com> CC: Eric Blake <eblake@redhat.com> CC: John Snow <jsnow@redhat.com> CC: Stefan Hajnoczi <stefanha@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-09-05block: simplify drive-backupPavel Butsykin
Now that we can support boxed commands, use it to greatly reduce the number of parameters (and likelihood of getting out of sync) when adjusting drive-backup parameters. Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Jeff Cody <jcody@redhat.com> CC: Markus Armbruster <armbru@redhat.com> CC: Eric Blake <eblake@redhat.com> CC: John Snow <jsnow@redhat.com> CC: Stefan Hajnoczi <stefanha@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-09-05nbd-server: Allow node name for nbd-server-addKevin Wolf
There is no reason why an NBD server couldn't be started for any node, even if it's not on the top level. This converts nbd-server-add to accept a node-name. Note that there is a semantic difference between using a BlockBackend name and the node name of its root: In the former case, the NBD server is closed on eject; in the latter case, the NBD server doesn't drop its reference and keeps the image file open this way. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-09-05block: Accept node-name for drive-mirrorKevin Wolf
In order to remove the necessity to use BlockBackend names in the external API, we want to allow node-names everywhere. This converts drive-mirror to accept a node-name without lifting the restriction that we're operating at a root node. In case of an invalid device name, the command returns the GenericError error class now instead of DeviceNotFound, because this is what qmp_get_root_bs() returns. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-09-05block: Accept node-name for drive-backupKevin Wolf
In order to remove the necessity to use BlockBackend names in the external API, we want to allow node-names everywhere. This converts drive-backup and the corresponding transaction action to accept a node-name without lifting the restriction that we're operating at a root node. In case of an invalid device name, the command returns the GenericError error class now instead of DeviceNotFound, because this is what qmp_get_root_bs() returns. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-09-05block: Accept node-name for change-backing-fileKevin Wolf
In order to remove the necessity to use BlockBackend names in the external API, we want to allow node-names everywhere. This converts change-backing-file to accept a node-name without lifting the restriction that we're operating at a root node. In case of an invalid device name, the command returns the GenericError error class now instead of DeviceNotFound, because this is what qmp_get_root_bs() returns. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-09-05block: Accept node-name for blockdev-snapshot-internal-syncKevin Wolf
In order to remove the necessity to use BlockBackend names in the external API, we want to allow node-names everywhere. This converts blockdev-snapshot-internal-sync to accept a node-name without lifting the restriction that we're operating at a root node. In case of an invalid device name, the command returns the GenericError error class now instead of DeviceNotFound, because this is what qmp_get_root_bs() returns. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-09-05block: Accept node-name for blockdev-snapshot-delete-internal-syncKevin Wolf
In order to remove the necessity to use BlockBackend names in the external API, we want to allow node-names everywhere. This converts blockdev-snapshot-delete-internal-sync to accept a node-name without lifting the restriction that we're operating at a root node. In case of an invalid device name, the command returns the GenericError error class now instead of DeviceNotFound, because this is what qmp_get_root_bs() returns. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-09-05block: Accept node-name for blockdev-mirrorKevin Wolf
In order to remove the necessity to use BlockBackend names in the external API, we want to allow node-names everywhere. This converts blockdev-mirror to accept a node-name without lifting the restriction that we're operating at a root node. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-09-05block: Accept node-name for blockdev-backupKevin Wolf
In order to remove the necessity to use BlockBackend names in the external API, we want to allow node-names everywhere. This converts blockdev-backup and the corresponding transaction action to accept a node-name without lifting the restriction that we're operating at a root node. In case of an invalid device name, the command returns the GenericError error class now instead of DeviceNotFound, because this is what qmp_get_root_bs() returns. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-09-05block: Accept node-name for block-commitKevin Wolf
In order to remove the necessity to use BlockBackend names in the external API, we want to allow node-names everywhere. This converts block-commit to accept a node-name without lifting the restriction that we're operating at a root node. As libvirt makes use of the DeviceNotFound error class, we must add explicit code to retain this behaviour because qmp_get_root_bs() only returns GenericErrors. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com>
2016-09-05block: Accept node-name for block-streamKevin Wolf
In order to remove the necessity to use BlockBackend names in the external API, we want to allow node-names everywhere. This converts block-stream to accept a node-name without lifting the restriction that we're operating at a root node. In case of an invalid device name, the command returns the GenericError error class now instead of DeviceNotFound, because this is what qmp_get_root_bs() returns. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com>
2016-08-05block: Accept any target node for transactional blockdev-backupKevin Wolf
Commit 0d978913 changed blockdev-backup to accept arbitrary node names instead of device names (i.e. root nodes) for the backup target. However, it forgot to make the same change in transactions and to update the documentation. This patch fixes these omissions. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-07-27Merge remote-tracking branch 'remotes/cody/tags/block-pull-request' into stagingPeter Maydell
# gpg: Signature made Tue 26 Jul 2016 21:51:38 BST # gpg: using RSA key 0xBDBE7B27C0DE3057 # gpg: Good signature from "Jeffrey Cody <jcody@redhat.com>" # gpg: aka "Jeffrey Cody <jeff@codyprime.org>" # gpg: aka "Jeffrey Cody <codyprime@gmail.com>" # Primary key fingerprint: 9957 4B4D 3474 90E7 9D98 D624 BDBE 7B27 C0DE 3057 * remotes/cody/tags/block-pull-request: mirror: double performance of the bulk stage if the disc is full block/gluster: fix doc in the qapi schema and member name Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-26block/gluster: fix doc in the qapi schema and member namePrasanna Kumar Kalever
1. qapi @BlockdevOptionsGluster schema member name s/debug_level/debug-level/ 2. rearrange the versioning 3. s/server description/servers description/ Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Message-Id: <1469198048-8535-1-git-send-email-prasanna.kalever@redhat.com> Signed-off-by: Jeff Cody <jcody@redhat.com>
2016-07-26block: export LUKS specific data to qemu-img infoDaniel P. Berrange
The qemu-img info command has the ability to expose format specific metadata about volumes. Wire up this facility for the LUKS driver to report on cipher configuration and key slot usage. $ qemu-img info ~/VirtualMachines/demo.luks image: /home/berrange/VirtualMachines/demo.luks file format: luks virtual size: 98M (102760448 bytes) disk size: 100M encrypted: yes Format specific information: ivgen alg: plain64 hash alg: sha1 cipher alg: aes-128 uuid: 6ddee74b-3a22-408c-8909-6789d4fa2594 cipher mode: xts slots: [0]: active: true iters: 572706 key offset: 4096 stripes: 4000 [1]: active: false key offset: 135168 [2]: active: false key offset: 266240 [3]: active: false key offset: 397312 [4]: active: false key offset: 528384 [5]: active: false key offset: 659456 [6]: active: false key offset: 790528 [7]: active: false key offset: 921600 payload offset: 2097152 master key iters: 142375 One somewhat undesirable artifact is that the data fields are printed out in (apparently) random order. This will be addressed later by changing the way the block layer pretty-prints the image specific data. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 1469192015-16487-3-git-send-email-berrange@redhat.com Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2016-07-26crypto: add support for querying parameters for block encryptionDaniel P. Berrange
When creating new block encryption volumes, we accept a list of parameters to control the formatting process. It is useful to be able to query what those parameters were for existing block devices. Add a qcrypto_block_get_info() method which returns a QCryptoBlockInfo instance to report this data. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 1469192015-16487-2-git-send-email-berrange@redhat.com Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2016-07-20Merge remote-tracking branch 'remotes/cody/tags/block-pull-request' into stagingPeter Maydell
# gpg: Signature made Wed 20 Jul 2016 01:18:39 BST # gpg: using RSA key 0xBDBE7B27C0DE3057 # gpg: Good signature from "Jeffrey Cody <jcody@redhat.com>" # gpg: aka "Jeffrey Cody <jeff@codyprime.org>" # gpg: aka "Jeffrey Cody <codyprime@gmail.com>" # Primary key fingerprint: 9957 4B4D 3474 90E7 9D98 D624 BDBE 7B27 C0DE 3057 * remotes/cody/tags/block-pull-request: block/gluster: add support for multiple gluster servers block/gluster: using new qapi schema block/gluster: deprecate rdma support block/gluster: code cleanup block/gluster: rename [server, volname, image] -> [host, volume, path] mirror: fix request throttling in drive-mirror mirror: improve performance of mirroring of empty disk mirror: efficiently zero out target mirror: optimize dirty bitmap filling in mirror_run a bit block: remove extra condition in bdrv_can_write_zeroes_with_unmap mirror: create mirror_dirty_init helper for mirror_run mirror: create mirror_throttle helper mirror: make sectors_in_flight int64_t dirty-bitmap: operate with int64_t amount Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-19block/gluster: add support for multiple gluster serversPrasanna Kumar Kalever
This patch adds a way to specify multiple volfile servers to the gluster block backend of QEMU with tcp|rdma transport types and their port numbers. Problem: Currently VM Image on gluster volume is specified like this: file=gluster[+tcp]://host[:port]/testvol/a.img Say we have three hosts in a trusted pool with replica 3 volume in action. When the host mentioned in the command above goes down for some reason, the other two hosts are still available. But there's currently no way to tell QEMU about them. Solution: New way of specifying VM Image on gluster volume with volfile servers: (We still support old syntax to maintain backward compatibility) Basic command line syntax looks like: Pattern I: -drive driver=gluster, volume=testvol,path=/path/a.raw,[debug=N,] server.0.type=tcp, server.0.host=1.2.3.4, server.0.port=24007, server.1.type=unix, server.1.socket=/path/socketfile Pattern II: 'json:{"driver":"qcow2","file":{"driver":"gluster", "volume":"testvol","path":"/path/a.qcow2",["debug":N,] "server":[{hostinfo_1}, ...{hostinfo_N}]}}' driver => 'gluster' (protocol name) volume => name of gluster volume where our VM image resides path => absolute path of image in gluster volume [debug] => libgfapi loglevel [(0 - 9) default 4 -> Error] {hostinfo} => {{type:"tcp",host:"1.2.3.4"[,port=24007]}, {type:"unix",socket:"/path/sockfile"}} type => transport type used to connect to gluster management daemon, it can be tcp|unix host => host address (hostname/ipv4/ipv6 addresses/socket path) port => port number on which glusterd is listening. socket => path to socket file Examples: 1. -drive driver=qcow2,file.driver=gluster, file.volume=testvol,file.path=/path/a.qcow2,file.debug=9, file.server.0.type=tcp, file.server.0.host=1.2.3.4, file.server.0.port=24007, file.server.1.type=unix, file.server.1.socket=/var/run/glusterd.socket 2. 'json:{"driver":"qcow2","file":{"driver":"gluster","volume":"testvol", "path":"/path/a.qcow2","debug":9,"server": [{"type":"tcp","host":"1.2.3.4","port":"24007"}, {"type":"unix","socket":"/var/run/glusterd.socket"} ]}}' This patch gives a mechanism to provide all the server addresses, which are in replica set, so in case host1 is down VM can still boot from any of the active hosts. This is equivalent to the backup-volfile-servers option supported by mount.glusterfs (FUSE way of mounting gluster volume) credits: sincere thanks to all the supporters Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-id: 1468947453-5433-6-git-send-email-prasanna.kalever@redhat.com Signed-off-by: Jeff Cody <jcody@redhat.com>
2016-07-19block/gluster: using new qapi schemaPrasanna Kumar Kalever
this patch adds 'GlusterServer' related schema in qapi/block-core.json [Jeff: minor fix-ups of comments and formatting, per patch reviews] Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1468947453-5433-5-git-send-email-prasanna.kalever@redhat.com Signed-off-by: Jeff Cody <jcody@redhat.com>
2016-07-19block: Simplify drive-mirrorEric Blake
Now that we can support boxed commands, use it to greatly reduce the number of parameters (and likelihood of getting out of sync) when adjusting drive-mirror parameters. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Message-Id: <1468535878-3760-1-git-send-email-eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-07-19block: Simplify block_set_io_throttleEric Blake
Now that we can support boxed commands, use it to greatly reduce the number of parameters (and likelihood of getting out of sync) when adjusting throttle parameters. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Message-Id: <1468468228-27827-11-git-send-email-eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-07-19qapi: change QmpInputVisitor to QSLISTPaolo Bonzini
This saves a lot of memory compared to a statically-sized array, or at least 24kb could be considered a lot on an Atari ST. It also makes the code more similar to QmpOutputVisitor. This removes the limit on the depth of a QObject that can be processed into a QAPI tree. This is not a problem because QObjects can be considered trusted; the text received on the QMP wire is untrusted input, but the JSON parser already takes pains to limit the QObject tree it creates. We don't need the QMP input visitor to limit it again. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <1467906798-5312-3-git-send-email-pbonzini@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [Commit message typo fixed] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-07-19qapi: change QmpOutputVisitor to QSLISTPaolo Bonzini
This saves a little memory compared to the doubly-linked QTAILQ. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <1467906798-5312-2-git-send-email-pbonzini@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [Comment tweaked to avoid long line] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-07-18trace: Add QAPI/QMP interfaces to query and control per-vCPU tracing stateLluís Vilanova
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-07-13block: Remove BB options from blockdev-addKevin Wolf
werror/rerror are now available as qdev options. The stats-* options are removed without an existing replacement; they should probably be configurable with a separate QMP command like I/O throttling settings. Removing id is left for another day because this involves updating qemu-iotests cases to use node-name for everything. Before we can do that, however, all QMP commands must support node-name. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-07-13block/qdev: Allow configuring rerror/werror with qdev propertiesKevin Wolf
The rerror/werror policies are implemented in the devices, so that's where they should be configured. In comparison to the old options in -drive, the qdev properties are only added to those devices that actually support them. If the option isn't given (or "auto" is specified), the setting of the BlockBackend is used for compatibility with the old options. For block jobs, "auto" is the same as "enospc". Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-07-13blockjob: Update description of the 'device' field in the QMP APIAlberto Garcia
The 'device' field in all BLOCK_JOB_* events and 'block-job-*' command is no longer the device name, but the ID of the job. This patch updates the documentation to clarify that. Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-07-13commit: Add 'job-id' parameter to 'block-commit'Alberto Garcia
This patch adds a new optional 'job-id' parameter to 'block-commit', allowing the user to specify the ID of the block job to be created. Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-07-13stream: Add 'job-id' parameter to 'block-stream'Alberto Garcia
This patch adds a new optional 'job-id' parameter to 'block-stream', allowing the user to specify the ID of the block job to be created. The HMP 'block_stream' command remains unchanged. Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-07-13backup: Add 'job-id' parameter to 'blockdev-backup' and 'drive-backup'Alberto Garcia
This patch adds a new optional 'job-id' parameter to 'blockdev-backup' and 'drive-backup', allowing the user to specify the ID of the block job to be created. The HMP 'drive_backup' command remains unchanged. Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>