path: root/qapi-schema.json
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2016-03-05chardev: Drop useless ChardevDummy typeEric Blake
Commit d0d7708b made ChardevDummy be an empty wrapper type around ChardevCommon. But there is no technical reason for this indirection, so simplify the code by directly using the base type. Also change the fallback assignment to assign u.null rather than u.data, since a future patch will remove the data member of the C struct generated for QAPI unions. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1457106160-23614-1-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-03-01qapi: promote input-send-event to stableGerd Hoffmann
With all fixups being in place now, we can promote input-send-event to stable abi by removing the x- prefix. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-03-01qapi: rename InputAxis values.Gerd Hoffmann
Lowercase them. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-03-01qapi: rename input buttonsGerd Hoffmann
All lowercase, use-dash instead of CamelCase. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-03-01qapi: switch x-input-send-event from console to device+headGerd Hoffmann
Use display device qdev id and head number instead of console index to specify the QemuConsole. This makes things consistent with input devices (for input routing) and vnc server configuration, which both use display and head too. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com>
2016-02-22Dump: add qmp command "query-dump"Peter Xu
When dump-guest-memory is requested with detach flag, after its return, user could query its status using "query-dump" command (with no argument). The result contains: - status: current dump status - completed: bytes written in the latest dump - total: bytes to write in the latest dump From completed and total, we could know how much work finished by calculating: 100.0 * completed / total (%) Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <1455772616-8668-10-git-send-email-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22dump-guest-memory: using static DumpState, add DumpStatusPeter Xu
Instead of malloc/free each time for DumpState, make it static. Added DumpStatus to show status for dump. This is to be used for detached dump. Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-Id: <1455772616-8668-4-git-send-email-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22dump-guest-memory: add "detach" flag for QMP/HMP interfaces.Peter Xu
This patch only adds the interfaces, but does not implement them. "detach" parameter is made optional, to make sure that all the old dump-guest-memory requests will still be able to work. Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-Id: <1455772616-8668-3-git-send-email-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-01-26char: introduce support for TLS encrypted TCP chardev backendDaniel P. Berrange
This integrates support for QIOChannelTLS object in the TCP chardev backend. If the 'tls-creds=NAME' option is passed with the '-chardev tcp' argument, then it will setup the chardev such that the client is required to establish a TLS handshake when connecting. There is no support for checking the client certificate against ACLs in this initial patch. This is pending work to QOM-ify the ACL object code. A complete invocation to run QEMU as the server for a TLS encrypted serial dev might be $ qemu-system-x86_64 \ -nodefconfig -nodefaults -device sga -display none \ -chardev socket,id=s0,host=,port=9000,tls-creds=tls0,server \ -device isa-serial,chardev=s0 \ -object tls-creds-x509,id=tls0,endpoint=server,verify-peer=off,\ dir=/home/berrange/security/qemutls To test with the gnutls-cli tool as the client: $ gnutls-cli --priority=NORMAL -p 9000 \ --x509cafile=/home/berrange/security/qemutls/ca-cert.pem \ If QEMU was told to use 'anon' credential type, then use the priority string 'NORMAL:+ANON-DH' with gnutls-cli Alternatively, if setting up a chardev to operate as a client, then the TLS credentials registered must be for the client endpoint. First a TLS server must be setup, which can be done with the gnutls-serv tool $ gnutls-serv --priority=NORMAL -p 9000 --echo \ --x509cafile=/home/berrange/security/qemutls/ca-cert.pem \ --x509certfile=/home/berrange/security/qemutls/server-cert.pem \ --x509keyfile=/home/berrange/security/qemutls/server-key.pem Then QEMU can connect with $ qemu-system-x86_64 \ -nodefconfig -nodefaults -device sga -display none \ -chardev socket,id=s0,host=,port=9000,tls-creds=tls0 \ -device isa-serial,chardev=s0 \ -object tls-creds-x509,id=tls0,endpoint=client,\ dir=/home/berrange/security/qemutls Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1453202071-10289-5-git-send-email-berrange@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-01-15qemu-char: add logfile facility to all chardev backendsDaniel P. Berrange
Typically a UNIX guest OS will log boot messages to a serial port in addition to any graphical console. An admin user may also wish to use the serial port for an interactive console. A virtualization management system may wish to collect system boot messages by logging the serial port, but also wish to allow admins interactive access. Currently providing such a feature forces the mgmt app to either provide 2 separate serial ports, one for logging boot messages and one for interactive console login, or to proxy all output via a separate service that can multiplex the two needs onto one serial port. While both are valid approaches, they each have their own downsides. The former causes confusion and extra setup work for VM admins creating disk images. The latter places an extra burden to re-implement much of the QEMU chardev backends logic in libvirt or even higher level mgmt apps and adds extra hops in the data transfer path. A simpler approach that is satisfactory for many use cases is to allow the QEMU chardev backends to have a "logfile" property associated with them. $QEMU -chardev socket,host=localhost,port=9000,\ server=on,nowait,id-charserial0,\ logfile=/var/log/libvirt/qemu/test-serial0.log -device isa-serial,chardev=charserial0,id=serial0 This patch introduces a 'ChardevCommon' struct which is setup as a base for all the ChardevBackend types. Ideally this would be registered directly as a base against ChardevBackend, rather than each type, but the QAPI generator doesn't allow that since the ChardevBackend is a non-discriminated union. The ChardevCommon struct provides the optional 'logfile' parameter, as well as 'logappend' which controls whether QEMU truncates or appends (default truncate). Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1452516281-27519-1-git-send-email-berrange@redhat.com> [Call qemu_chr_parse_common if cd->parse is NULL. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-01-15qapi-schema: dump-guest-memory: Improve textAndrew Jones
dump-guest-memory is supported by more than just x86, however the paging option is not. (No functional change.) Signed-off-by: Andrew Jones <drjones@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1452542185-10914-2-git-send-email-drjones@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-12-18qemu-char: convert to use error checked base64 decodeDaniel P. Berrange
Switch from using g_base64_decode over to qbase64_decode in order to get error checking of the base64 input data. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2015-12-17qemu-char: append opt to stop truncation of serial fileOlga Krishtal
Our QA team wants to preserve serial output of the guest in between QEMU runs to perform post-analysis. By default this behavior is off (file is truncated each time QEMU is started or device is plugged). Signed-off-by: Olga Krishtal <okrishtal@virtuozzo.com> Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Eric Blake <eblake@redhat.com> CC: Markus Armbruster <armbru@redhat.com> CC: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <1449211324-17856-1-git-send-email-den@openvz.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-12-17cpu: Convert CpuInfo into flat unionEric Blake
The CpuInfo struct is used only by the 'query-cpus' output command, so we are free to modify it by adding fields (clients are already supposed to ignore unknown output fields), or by changing optional members to mandatory, while still keeping QMP wire compatibility with older versions of qemu. When qapi type CpuInfo was originally created for 0.14, we had no notion of a flat union, and instead just listed a bunch of optional fields with documentation about the mutually-exclusive choice of which instruction pointer field(s) would be provided for a given architecture. But now that we have flat unions and introspection, it is better to segregate off which fields will be provided according to the actual architecture. With this in place, we no longer need the fields to be optional, because the choice of the new 'arch' discriminator serves that role. This has an additional benefit: the old all-in-one struct was the only place in the code base that had a case-sensitive naming of members 'pc' vs. 'PC'. Separating these spellings into different branches of the flat union will allow us to add restrictions against future case-insensitive collisions, since that is generally a poor interface practice. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1447836791-369-25-git-send-email-eblake@redhat.com> [Spelling of CPUInfo{SPARC,PPC,MIPS} fixed] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-17input: Document why x-input-send-event is still experimentalEric Blake
The x-input-send-event command was introduced in 2.2 with mention that it is experimental, but now that several releases have elapsed without any changes, it would be nice to document why that was done and should still remain experimental in 2.5. Meanwhile, our documentation states that we prefer 'lower-case', rather than 'CamelCase', for qapi enum values. The InputButton and InputAxis enums violate this convention. However, because they are currently used primarily for generating code that is used internally; and their only exposure through QMP is via the experimental 'x-input-send-event' command, we are free to change their spelling. Of course, it would be nicer to delay such a change until the same time we promote the command to non-experimental. Adding documentation will help us remember to do that rename. We have plans to tighten the qapi generator to flag instances of inconsistent use of naming conventions; if that lands first, it will just need to whitelist these exceptions until the time we settle on the final interface. Fix a typo in the docs for InputAxis while at it. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1447354243-31825-1-git-send-email-eblake@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-12Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20151112' ↵Peter Maydell
into staging migration/next for 20151112 # gpg: Signature made Thu 12 Nov 2015 16:56:44 GMT using RSA key ID 5872D723 # gpg: Good signature from "Juan Quintela <quintela@redhat.com>" # gpg: aka "Juan Quintela <quintela@trasno.org>" * remotes/juanquintela/tags/migration/20151112: migration_init: Fix lock initialisation/make it explicit migrate-start-postcopy: Improve text Postcopy: Fix TP!=HP zero case Finish non-postcopiable iterative devices before package migration: Make 32bit linux compile with RDMA migration: print ram_addr_t as RAM_ADDR_FMT not %zx Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-12migrate-start-postcopy: Improve textDr. David Alan Gilbert
Improve the text in both the qapi-schema and hmp help to point out you need to set the postcopy-ram capability prior to issuing migrate-start-postcopy. Also fix the text of the migrate_start_postcopy error that deals with capabilities. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Acked-by: Jason J. Herne <jjherne@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-11-12block: add transactional propertiesJohn Snow
Add both transactional properties to the QMP transactional interface, and add the BlockJobTxn that we create as a result of the err-cancel property to the BlkActionState structure. [split up from a patch originally by Stefan and Fam. --js] Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Message-id: 1446765200-3054-13-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-12qed: Implement .bdrv_drainFam Zheng
The "need_check_timer" is used to clear the "NEED_CHECK" flag in the image header after a grace period once metadata update has finished. In compliance to the bdrv_drain semantics we should make sure it remains deleted once .bdrv_drain is called. We cannot reuse qed_need_check_timer_cb because here it doesn't satisfy the assertion. Do the "plug" and "flush" calls manually. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 1447064214-29930-10-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-11block: add a 'blockdev-snapshot' QMP commandAlberto Garcia
One of the limitations of the 'blockdev-snapshot-sync' command is that it does not allow passing BlockdevOptions to the newly created snapshots, so they are always opened using the default values. Extending the command to allow passing options is not a practical solution because there is overlap between those options and some of the existing parameters of the command. This patch introduces a new 'blockdev-snapshot' command with a simpler interface: it just takes two references to existing block devices that will be used as the source and target for the snapshot. Since the main difference between the two commands is that one of them creates and opens the target image, while the other uses an already opened one, the bulk of the implementation is shared. Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-11block: rename BlockdevSnapshot to BlockdevSnapshotSyncAlberto Garcia
We will introduce the 'blockdev-snapshot' command that will require its own struct for the parameters, so we need to rename this one in order to avoid name clashes. Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-11qmp: Introduce blockdev-change-mediumMax Reitz
Introduce a new QMP command 'blockdev-change-medium' which is intended to replace the 'change' command for block devices. The existing function qmp_change_blockdev() is accordingly renamed to qmp_blockdev_change_medium(). Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-10MIGRATION_STATUS_POSTCOPY_ACTIVE: Add new migration stateDr. David Alan Gilbert
'MIGRATION_STATUS_POSTCOPY_ACTIVE' is entered after migrate_start_postcopy 'migration_in_postcopy' is provided for other sections to know if they're in postcopy. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-11-10migrate_start_postcopy: Command to trigger transition to postcopyDr. David Alan Gilbert
Once postcopy is enabled (with migrate_set_capability), the migration will still start on precopy mode. To cause a transition into postcopy the: migrate_start_postcopy command must be issued. Postcopy will start sometime after this (when it's next checked in the migration loop). Issuing the command before migration has started will error, and issuing after it has finished is ignored. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-11-10Add migration-capability boolean for postcopy-ram.Dr. David Alan Gilbert
The 'postcopy ram' capability allows postcopy migration of RAM; note that the migration starts off in precopy mode until postcopy mode is triggered (see the migrate_start_postcopy patch later in the series). Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-11-05replay: global variables and function stubsPavel Dovgalyuk
This patch adds global variables, defines, function declarations, and function stubs for deterministic VM replay used by external modules. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20150917162337.8676.41538.stgit@PASHA-ISP.def.inno> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-11-02qapi-schema: mark InetSocketAddress as mandatory againDaniel P. Berrange
Revert the qapi-schema.json change done in: commit 0983f5e6af76d5df8c6346cbdfff9d8305fb6da0 Author: Daniel P. Berrange <berrange@redhat.com> Date: Tue Sep 1 14:46:50 2015 +0100 sockets: allow port to be NULL when listening on IP address Switching "port" from mandatory to optional causes the QAPI code generator to add a 'has_port' field to the InetSocketAddress struct. No code that created InetSocketAddress objects was updated to set 'has_port = true', which caused the non-NULL port strings to be silently dropped when copying InetSocketAddress objects. Reported-by: Knut Omang <knuto@ifi.uio.no> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1445509543-30679-1-git-send-email-berrange@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-20sockets: allow port to be NULL when listening on IP addressDaniel P. Berrange
If the port in the SocketAddress struct is NULL, it can allow the kernel to automatically select a free port. This is useful in particular in unit tests to avoid a race trying to find a free port to run a test case on. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2015-10-15qapi: Lazy creation of array typesEric Blake
Commit ac88219a had several TODO markers about whether we needed to automatically create the corresponding array type alongside any other type. It turns out that most of the time, we don't! There are a few exceptions: 1) We have a few situations where we use an array type in internal code but do not expose that type through QMP; fix it by declaring a dummy type that forces the generator to see that we want to use the array type. 2) The builtin arrays (such as intList for QAPI ['int']) must always be generated, because of the way our QAPI_TYPES_BUILTIN compile guard works: we have situations (at the very least tests/test-qmp-output-visitor.c) that include both top-level "qapi-types.h" (via "error.h") and a secondary "test-qapi-types.h". If we were to only emit the builtin types when used locally, then the first .h file would not include all types, but the second .h does not declare anything at all because the first .h set QAPI_TYPES_BUILTIN, and we would end up with compilation error due to things like unknown type 'int8List'. Actually, we may need to revisit how we do type guards, and change from a single QAPI_TYPES_BUILTIN over to a different usage pattern that does one #ifdef per qapi type - right now, the only types that are declared multiple times between two qapi .json files for inclusion by a single .c file happen to be the builtin arrays. But now that we have QAPI 'include' statements, it is logical to assume that we will soon reach a point where we want to reuse non-builtin types (yes, I'm thinking about what it will take to add introspection to QGA, where we will want to reuse the SchemaInfo type and friends). One #ifdef per type will help ensure that generating the same qapi type into more than one qapi-types.h won't cause collisions when both are included in the same .c file; but we also have to solve how to avoid creating duplicate qapi-types.c entry points. So that is a problem left for another day. Generated code for qapi-types and qapi-visit is drastically reduced; less than a third of the arrays that were blindly created were actually needed (a quick grep shows we dropped from 219 to 69 *List types), and the .o files lost more than 30% of their bulk. [For best results, diff the generated files with 'git diff --patience --no-index pre post'.] Interestingly, the introspection output is unchanged - this is because we already cull all types that are not indirectly reachable from a command or event, so introspection was already using only a subset of array types. The subset of types introspected is now a much larger percentage of the overall set of array types emitted in qapi-types.h (since the larger set shrunk), but still not 100% (evidence that the array types emitted for our new Dummy structs, and the new struct itself, don't affect QMP). Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1444710158-8723-9-git-send-email-eblake@redhat.com> [Moved array info tracking to a later patch] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-12init/cleanup of netfilter objectYang Hongyang
Add a netfilter object based on QOM. A netfilter is attached to a netdev, captures all network packets that pass through the netdev. When we delete the netdev, we also delete the netfilter object attached to it, because if the netdev is removed, the filter which attached to it is useless. Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-09-30qmp/hmp: Add throttle ratio to query-migrate and info migrateJason J. Herne
Report throttle percentage in info migrate and query-migrate responses when cpu throttling is active. Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com>
2015-09-30migration: Parameters for auto-converge cpu throttlingJason J. Herne
Add migration parameters to allow the user to adjust the parameters that control cpu throttling when auto-converge is in effect. The added parameters are as follows: x-cpu-throttle-initial : Initial percantage of time guest cpus are throttled when migration auto-converge is activated. x-cpu-throttle-increment: throttle percantage increase each time auto-converge detects that migration is not making progress. Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com>
2015-09-24vhost-user: add multiple queue supportChangchun Ouyang
This patch is initially based a patch from Nikolay Nikolaev. This patch adds vhost-user multiple queue support, by creating a nc and vhost_net pair for each queue. Qemu exits if find that the backend can't support the number of requested queues (by providing queues=# option). The max number is queried by a new message, VHOST_USER_GET_QUEUE_NUM, and is sent only when protocol feature VHOST_USER_PROTOCOL_F_MQ is present first. The max queue check is done at vhost-user initiation stage. We initiate one queue first, which, in the meantime, also gets the max_queues the backend supports. In older version, it was reported that some messages are sent more times than necessary. Here we came an agreement with Michael that we could categorize vhost user messages to 2 types: non-vring specific messages, which should be sent only once, and vring specific messages, which should be sent per queue. Here I introduced a helper function vhost_user_one_time_request(), which lists following messages as non-vring specific messages: VHOST_USER_SET_OWNER VHOST_USER_RESET_DEVICE VHOST_USER_SET_MEM_TABLE VHOST_USER_GET_QUEUE_NUM For above messages, we simply ignore them when they are not sent the first time. Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com> Signed-off-by: Changchun Ouyang <changchun.ouyang@intel.com> Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com> Reviewed-by: Jason Wang <jasowang@redhat.com> Tested-by: Marcel Apfelbaum <marcel@redhat.com>
2015-09-22monitor: allow device_del to accept QOM pathsDaniel P. Berrange
Currently device_del requires that the client provide the device short ID. device_add allows devices to be created without giving an ID, at which point there is no way to delete them with device_del. The QOM object path, however, provides an alternative way to identify the devices. Allowing device_del to accept an object path ensures all devices are deletable regardless of whether they have an ID. (qemu) device_add usb-mouse (qemu) qom-list /machine/peripheral-anon device[0] (child<usb-mouse>) type (string) (qemu) device_del /machine/peripheral-anon/device[0] Devices are required to be marked as hotpluggable otherwise an error is raised (qemu) device_del /machine/unattached/device[4] Device 'PIIX3' does not support hotplugging Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1441974836-17476-1-git-send-email-berrange@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [Commit message touched up, accidental white-space change dropped] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-09-21qapi: New QMP command query-qmp-schema for QMP introspectionMarkus Armbruster
qapi/introspect.json defines the introspection schema. It's designed for QMP introspection, but should do for similar uses, such as QGA. The introspection schema does not reflect all the rules and restrictions that apply to QAPI schemata. A valid QAPI schema has an introspection value conforming to the introspection schema, but the converse is not true. Introspection lowers away a number of schema details, and makes implicit things explicit: * The built-in types are declared with their JSON type. All integer types are mapped to 'int', because how many bits we use internally is an implementation detail. It could be pressed into external interface service as very approximate range information, but that's a bad idea. If we need range information, we better do it properly. * Implicit type definitions are made explicit, and given auto-generated names: - Array types, named by appending "List" to the name of their element type, like in generated C. - The enumeration types implicitly defined by simple union types, named by appending "Kind" to the name of their simple union type, like in generated C. - Types that don't occur in generated C. Their names start with ':' so they don't clash with the user's names. * All type references are by name. * The struct and union types are generalized into an object type. * Base types are flattened. * Commands take a single argument and return a single result. Dictionary argument or list result is an implicit type definition. The empty object type is used when a command takes no arguments or produces no results. The argument is always of object type, but the introspection schema doesn't reflect that. The 'gen': false directive is omitted as implementation detail. The 'success-response' directive is omitted as well for now, even though it's not an implementation detail, because it's not used by QMP. * Events carry a single data value. Implicit type definition and empty object type use, just like for commands. The value is of object type, but the introspection schema doesn't reflect that. * Types not used by commands or events are omitted. Indirect use counts as use. * Optional members have a default, which can only be null right now Instead of a mandatory "optional" flag, we have an optional default. No default means mandatory, default null means optional without default value. Non-null is available for optional with default (possible future extension). * Clients should *not* look up types by name, because type names are not ABI. Look up the command or event you're interested in, then follow the references. TODO Should we hide the type names to eliminate the temptation? New generator scripts/qapi-introspect.py computes an introspection value for its input, and generates a C variable holding it. It can generate awfully long lines. Marked TODO. A new test-qmp-input-visitor test case feeds its result for both tests/qapi-schema/qapi-schema-test.json and qapi-schema.json to a QmpInputVisitor to verify it actually conforms to the schema. New QMP command query-qmp-schema takes its return value from that variable. Its reply is some 85KiBytes for me right now. If this turns out to be too much, we have a couple of options: * We can use shorter names in the JSON. Not the QMP style. * Optionally return the sub-schema for commands and events given as arguments. Right now qmp_query_schema() sends the string literal computed by qmp-introspect.py. To compute sub-schema at run time, we'd have to duplicate parts of qapi-introspect.py in C. Unattractive. * Let clients cache the output of query-qmp-schema. It changes only on QEMU upgrades, i.e. rarely. Provide a command query-qmp-schema-hash. Clients can have a cache indexed by hash, and re-query the schema only when they don't have it cached. Even simpler: put the hash in the QMP greeting. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2015-09-21qapi-schema: Fix up misleading specification of netdev_addMarkus Armbruster
It doesn't take a 'props' argument, let alone one in the format "NAME=VALUE,..." The bogus arguments specification doesn't matter due to 'gen': false. Clean it up to be incomplete rather than wrong, and document the incompleteness. While there, improve netdev_add usage example in the manual: add a device option to show how it's done. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1442401589-24189-24-git-send-email-armbru@redhat.com>
2015-09-21qom: Don't use 'gen': false for qom-get, qom-set, object-addMarkus Armbruster
With the previous commit, the generated marshalers just work, and save us a bit of handwritten code. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1442401589-24189-23-git-send-email-armbru@redhat.com>
2015-09-15crypto: introduce new base module for TLS credentialsDaniel P. Berrange
Introduce a QCryptoTLSCreds class to act as the base class for storing TLS credentials. This will be later subclassed to provide handling of anonymous and x509 credential types. The subclasses will be user creatable objects, so instances can be created & deleted via 'object-add' and 'object-del' QMP commands respectively, or via the -object command line arg. If the credentials cannot be initialized an error will be reported as a QMP reply, or on stderr respectively. The idea is to make it possible to represent and manage TLS credentials independently of the network service that is using them. This will enable multiple services to use the same set of credentials and minimize code duplication. A later patch will convert the current VNC server TLS code over to use this object. The representation of credentials will be functionally equivalent to that currently implemented in the VNC server with one exception. The new code has the ability to (optionally) load a pre-generated set of diffie-hellman parameters, if the file dh-params.pem exists, whereas the current VNC server will always generate them on startup. This is beneficial for admins who wish to avoid the (small) time sink of generating DH parameters at startup and/or avoid depleting entropy. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2015-09-11qapi-schema: remove legacy<> from docMarc-André Lureau
The legacy<> type is no longer used since 7ce7ffe02. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-09-03s390x: Dump storage keys qmp commandJason J. Herne
Provide a dump-skeys qmp command to allow the end user to dump storage keys. This is useful for debugging problems with guest storage key support within Qemu and for guest operating system developers. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2015-07-27qapi: add missing @Marc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-07-20Revert "vhost-user: add multi queue support"Michael S. Tsirkin
This reverts commit 830d70db692e374b55555f4407f96a1ceefdcc97. The interface isn't fully backwards-compatible, which is bad. Let's redo this properly after 2.4. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-07-07migration: Make events a capabilityJuan Quintela
Make check fails with events. THis is due to the parser/lexer that it uses. Just in case that they are more broken parsers, just only send events when there are capabilities. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2015-06-15Merge remote-tracking branch 'remotes/borntraeger/tags/s390x-20150615' into ↵Peter Maydell
staging s390x/kvm/watchdog 1. Implement a diag288 based watchdog 2. Fix virtio-ccw BIOS for gcc >= 4.9 # gpg: Signature made Mon Jun 15 12:36:25 2015 BST using RSA key ID B5A61C7C # gpg: Good signature from "Christian Borntraeger (IBM) <borntraeger@de.ibm.com>" * remotes/borntraeger/tags/s390x-20150615: s390/bios: build with -fdelete-null-pointer-checks watchdog: Add new Virtual Watchdog action INJECT-NMI nmi: Implement inject_nmi() for non-monitor context use s390x/watchdog: diag288 migration support s390x/kvm: diag288 instruction interception and handling s390x/watchdog: introduce diag288 watchdog device watchdog: change option wording to allow for more watchdogs Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-12qmp/hmp: add rocker device supportScott Feldman
Add QMP/HMP support for rocker devices. This is mostly for debugging purposes to see inside the device's tables and port configurations. Some examples: (qemu) info rocker sw1 name: sw1 id: 0x0000013512005452 ports: 4 (qemu) info rocker-ports sw1 ena/ speed/ auto port link duplex neg? sw1.1 up 10G FD No sw1.2 up 10G FD No sw1.3 !ena 10G FD No sw1.4 !ena 10G FD No (qemu) info rocker-of-dpa-flows sw1 prio tbl hits key(mask) --> actions 2 60 pport 1 vlan 1 LLDP src 00:02:00:00:02:00 dst 01:80:c2:00:00:0e 2 60 pport 1 vlan 1 ARP src 00:02:00:00:02:00 dst 00:02:00:00:03:00 2 60 pport 2 vlan 2 IPv6 src 00:02:00:00:03:00 dst 33:33:ff:00:00:02 proto 58 3 50 vlan 2 dst 33:33:ff:00:00:02 --> write group 0x32000001 goto tbl 60 2 60 pport 2 vlan 2 IPv6 src 00:02:00:00:03:00 dst 33:33:ff:00:03:00 proto 58 3 50 1 vlan 2 dst 33:33:ff:00:03:00 --> write group 0x32000001 goto tbl 60 2 60 pport 2 vlan 2 ARP src 00:02:00:00:03:00 dst 00:02:00:00:02:00 3 50 2 vlan 2 dst 00:02:00:00:02:00 --> write group 0x02000001 goto tbl 60 2 60 1 pport 2 vlan 2 IP src 00:02:00:00:03:00 dst 00:02:00:00:02:00 proto 1 3 50 2 vlan 1 dst 00:02:00:00:03:00 --> write group 0x01000002 goto tbl 60 2 60 1 pport 1 vlan 1 IP src 00:02:00:00:02:00 dst 00:02:00:00:03:00 proto 1 2 60 pport 1 vlan 1 IPv6 src 00:02:00:00:02:00 dst 33:33:ff:00:00:01 proto 58 3 50 vlan 1 dst 33:33:ff:00:00:01 --> write group 0x31000000 goto tbl 60 2 60 pport 1 vlan 1 IPv6 src 00:02:00:00:02:00 dst 33:33:ff:00:02:00 proto 58 3 50 1 vlan 1 dst 33:33:ff:00:02:00 --> write group 0x31000000 goto tbl 60 1 60 173 pport 2 vlan 2 LLDP src <any> dst 01:80:c2:00:00:0e --> write group 0x02000000 1 60 6 pport 2 vlan 2 IPv6 src <any> dst <any> --> write group 0x02000000 1 60 174 pport 1 vlan 1 LLDP src <any> dst 01:80:c2:00:00:0e --> write group 0x01000000 1 60 174 pport 2 vlan 2 IP src <any> dst <any> --> write group 0x02000000 1 60 6 pport 1 vlan 1 IPv6 src <any> dst <any> --> write group 0x01000000 1 60 181 pport 2 vlan 2 ARP src <any> dst <any> --> write group 0x02000000 1 10 715 pport 2 --> apply new vlan 2 goto tbl 20 1 60 177 pport 1 vlan 1 ARP src <any> dst <any> --> write group 0x01000000 1 60 174 pport 1 vlan 1 IP src <any> dst <any> --> write group 0x01000000 1 10 717 pport 1 --> apply new vlan 1 goto tbl 20 1 0 1432 pport 0(0xffff) --> goto tbl 10 (qemu) info rocker-of-dpa-groups sw1 id (decode) --> buckets 0x32000001 (type L2 multicast vlan 2 index 1) --> groups [0x02000001,0x02000000] 0x02000001 (type L2 interface vlan 2 pport 1) --> pop vlan out pport 1 0x01000002 (type L2 interface vlan 1 pport 2) --> pop vlan out pport 2 0x02000000 (type L2 interface vlan 2 pport 0) --> pop vlan out pport 0 0x01000000 (type L2 interface vlan 1 pport 0) --> pop vlan out pport 0 0x31000000 (type L2 multicast vlan 1 index 0) --> groups [0x01000002,0x01000000] [Added "query-" prefixes to rocker.json commands as suggested by Eric Blake <eblake@redhat.com>. --Stefan] Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Message-id: 1433985681-56138-5-git-send-email-sfeldma@gmail.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-06-11watchdog: Add new Virtual Watchdog action INJECT-NMIMao Chuan Li
This patch allows QEMU to inject a NMI into a guest when the watchdog expires. Signed-off-by: Mao Chuan Li <maochuan@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> CC: Eric Blake <eblake@redhat.com> CC: Markus Armbruster <armbru@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2015-06-02monitor: Convert client_migrate_info to QAPIMarkus Armbruster
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-06-01vhost-user: add multi queue supportOuyang Changchun
Based on patch by Nikolay Nikolaev: Vhost-user will implement the multi queue support in a similar way to what vhost already has - a separate thread for each queue. To enable the multi queue functionality - a new command line parameter "queues" is introduced for the vhost-user netdev. Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com> Signed-off-by: Changchun Ouyang <changchun.ouyang@intel.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-05-29kbd: add brazil kbd keys to qemuGerd Hoffmann
The brazilian computer keyboard layout has two extra keys (compared to the usual 105-key intl ps/2 keyboard). This patch makes these two keys known to qemu. For historic reasons qemu has two ways to specify a key: A QKeyCode (name-based) or a number (ps/2 scancode based). Therefore we have to update multiple places to make new keys known to qemu: (1) The QKeyCode definition in qapi-schema.json (2) The QKeyCode <-> number mapping table in ui/input-keymap.c This patch does just that. With this patch applied you can send those two keys to the guest using the send-key monitor command. Cc: qemu-stable@nongnu.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
2015-05-14qmp: Add qom_path field to query-cpus commandEduardo Habkost
This will allow clients to query additional information directly using qom-get on the CPU objects. Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>