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2012-04-05qdev: add blocksize property typeStefan Hajnoczi1-0/+5
Storage interfaces like virtio-blk can be configured with block size information so that the guest can take advantage of efficient I/O request sizes. According to the SCSI Block Commands (SBC) standard a device's block size is "almost always greater than one byte and may be a multiple of 512 bytes". QEMU currently has a 512 byte minimum block size because the block layer functions work at that granularity. Furthermore, the block size should be a power of 2 because QEMU calculates bitmasks from the value. Introduce a "blocksize" property type so devices can enforce these constraints on block size values. If the constraints are relaxed in the future then this property can be updated. Introduce the new PropertyValueNotPowerOf2 QError so QMP clients know exactly why a block size value was rejected. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-05qerror: fix QERR_PROPERTY_VALUE_OUT_OF_RANGE descriptionStefan Hajnoczi1-1/+1
Fix a typo in the description for QERR_PROPERTY_VALUE_OUT_OF_RANGE where "'" was used instead of ")". Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-03-15QError: Introduce new errors for the migration commandLuiz Capitulino1-0/+8
The new errors are QERR_MIGRATION_ACTIVE and QERR_MIGRATION_NOT_SUPPORTED, which are going to be used by the QAPI converted migration command. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-02-14qdev: print error message before abortingPaolo Bonzini1-0/+8
qdev_prop_set_* functions are always called by machine init functions that should know what they're doing, so they abort on error. Still, an assert(!errp) does not aid debugging. Print an error before aborting. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-02-07qom: use object_resolve_path_type for linksPaolo Bonzini1-0/+4
This allows to restrict partial matches to objects of the expected type. It will let people use bare names to reference drives even though their name might be the same as a device's (e.g. -drive id=hd0,if=none,... -device ...,drive=hd0,id=hd0). As a useful byproduct, this fixes a problem with links of interface type. When a link property's type is an interface, the code expects the implementation object (not the parent object) to be stored in the variable. The parent object does not contain the right vtable. Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-02-03qom: add new command to search for typesAnthony Liguori1-1/+1
This adds a command that allows searching for types that implement a property. This allows you to do things like search for all available PCIDevices. In the future, we'll also have a standard interface for things with a BlockDriverState property that a PCIDevice could implement. This will enable search queries like, "any type that implements the BlockDevice interface" which would allow management tools to present available block devices without having to hard code device names. Since an object can implement multiple interfaces, one device could act both as a BlockDevice and a NetworkDevice. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-26add QERR_BASE_NOT_FOUNDMarcelo Tosatti1-0/+4
This qerror will be raised when a given streaming base (backing file) cannot be found. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-01-26qmp: add block_stream commandStefan Hajnoczi1-0/+4
Add the block_stream command, which starts copy backing file contents into the image file. Also add the BLOCK_JOB_COMPLETED QMP event which is emitted when image streaming completes. Later patches add control over the background copy speed, cancelation, and querying running streaming operations. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-01-18block: use proper qerrors in qmp_block_resizeStefan Hajnoczi1-0/+8
Let's report specific errors so that management tools and users can identify the problem. Two new qerrors are needed: * QERR_DEVICE_HAS_NO_MEDIUM for ENOMEDIUM * QERR_DEVICE_IS_READ_ONLY for EACCES Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-01-18qerror: restore alphabetical order over qerrorsStefan Hajnoczi1-42/+42
Over time these must have gotten out of order. Put everything back in alphabetical order. This is purely a clean up. In practice nothing depends on the order. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-01-18qerror: add check-qerror.sh to verify alphabetical orderStefan Hajnoczi1-2/+1
We're supposed to keep qerror definitions and table entries in alphabetical order. In practice this is not checked. I haven't found a nice way to integrate this into the makefile yet but we can at least have this script which verifies that qerrors are in alphabetical order. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-19qom: introduce QERR_PROPERTY_VALUE_OUT_OF_RANGEPaolo Bonzini1-0/+5
This will be used when reject invalid values for integer fields that are less than 64-bits wide. Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-12-15qom: add new dynamic property infrastructure based on Visitors (v2)Anthony Liguori1-0/+4
qdev properties are settable only during construction and static to classes. This isn't flexible enough for QOM. This patch introduces a property interface for qdev that provides dynamic properties that are tied to objects, instead of classes. These properties are Visitor based instead of string based too. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-12-14Merge remote-tracking branch 'stefanha/trivial-patches-next' into stagingAnthony Liguori1-1/+1
2011-12-14Fix spelling in comments, documentation and messagesStefan Weil1-1/+1
accidently->accidentally annother->another choosen->chosen consideres->considers decriptor->descriptor developement->development paramter->parameter preceed->precede preceeding->preceding priviledge->privilege propogation->propagation substraction->subtraction throught->through upto->up to usefull->useful Fix also grammar in posix-aio-compat.c Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-12-12guest agent: add RPC blacklist command-line optionMichael Roth1-0/+4
This adds a command-line option, -b/--blacklist, that accepts a comma-seperated list of RPCs to disable, or prints a list of available RPCs if passed "?". In consequence this also adds general blacklisting and RPC listing facilities to the new QMP dispatch/registry facilities, should the QMP monitor ever have a need for such a thing. Ideally, to avoid support/compatability issues in the future, blacklisting guest agent functionality will be the exceptional case, but we add the functionality here to handle guest administrators with specific requirements. Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-12-06QError: Introduce QERR_IO_ERRORLuiz Capitulino1-0/+4
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-05Merge remote-tracking branch 'kwolf/for-anthony' into stagingAnthony Liguori1-0/+4
2011-12-05Merge remote-tracking branch 'aneesh/1.0-fixes' into stagingAnthony Liguori1-0/+5
2011-12-05hmp/qmp: add block_set_io_throttleZhi Yong Wu1-0/+4
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-12-04hw/9pfs: use migration blockers to prevent live migration when virtfs export ↵Aneesh Kumar K.V1-0/+5
path is mounted Now when you try to migrate with VirtFS export path mounted, you get a proper QMP error: (qemu) migrate tcp:localhost:4444 Migration is disabled when VirtFS export path '/tmp/' is mounted in the guest using mount_tag 'v_tmp' (qemu) Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
2011-12-02fix spelling in main directoryDong Xu Wang1-1/+1
Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-11-21qed: add migration blocker (v2)Anthony Liguori1-0/+4
Now when you try to migrate with qed, you get: (qemu) migrate tcp:localhost:1025 Block format 'qed' used by device 'ide0-hd0' does not support feature 'live migration' (qemu) Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-11-21ivshmem: use migration blockers to prevent live migration in peer mode (v2)Anthony Liguori1-0/+4
Now when you try to migrate with ivshmem, you get a proper QMP error: (qemu) migrate tcp:localhost:1025 Migration is disabled when using feature 'peer mode' in device 'ivshmem' (qemu) Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-27qerror: Add a user string for QERR_FEATURE_DISABLEDLuiz Capitulino1-0/+4
Missing from commit 821601ea5b. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-10-04qerror: add qerror_report_err()Anthony Liguori1-0/+33
This provides a bridge between Error (new error mechanism) and QError (old error mechanism). Errors can be propagated whereas QError cannot. The minor evilness avoids layering violations. Since QError should go away RSN, it seems like a reasonable hack. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-09-15Monitor/QMP: Don't allow cont on bad VM stateLuiz Capitulino1-0/+4
We have two states where issuing cont before system_reset can cause problems: RSTATE_SHUTDOWN (when -no-shutdown is used) and RSTATE_PANICKED (which only happens with kvm). This commit fixes that by doing the following when state is RSTATE_SHUTDOWN or RSTATE_PANICKED: 1. returning an error to the user/client if cont is issued 2. automatically transition to RSTATE_PAUSED during system_reset Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-08-20Use glib memory allocation and free functionsAnthony Liguori1-2/+2
qemu_malloc/qemu_free no longer exist after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-23Introduce a 'client_add' monitor command accepting an open FDDaniel P. Berrange1-0/+4
Allow client connections for VNC and socket based character devices to be passed in over the monitor using SCM_RIGHTS. One intended usage scenario is to start QEMU with VNC on a UNIX domain socket. An unprivileged user which cannot access the UNIX domain socket, can then connect to QEMU's VNC server by passing an open FD to libvirt, which passes it onto QEMU. { "execute": "get_fd", "arguments": { "fdname": "myclient" } } { "return": {} } { "execute": "add_client", "arguments": { "protocol": "vnc", "fdname": "myclient", "skipauth": true } } { "return": {} } In this case 'protocol' can be 'vnc' or 'spice', or the name of a character device (eg from -chardev id=XXXX) The 'skipauth' parameter can be used to skip any configured VNC authentication scheme, which is useful if the mgmt layer talking to the monitor has already authenticated the client in another way. * console.h: Define 'vnc_display_add_client' method * monitor.c: Implement 'client_add' command * qemu-char.c, qemu-char.h: Add 'qemu_char_add_client' method * qerror.c, qerror.h: Add QERR_ADD_CLIENT_FAILED * qmp-commands.hx: Declare 'client_add' command * ui/vnc.c: Implement 'vnc_display_add_client' method Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-21guest agent: add guest agent RPCs/commandsMichael Roth1-0/+8
This adds the initial set of QMP/QAPI commands provided by the guest agent: guest-sync guest-ping guest-info guest-shutdown guest-file-open guest-file-read guest-file-write guest-file-seek guest-file-flush guest-file-close guest-fsfreeze-freeze guest-fsfreeze-thaw guest-fsfreeze-status The input/output specification for these commands are documented in the schema. Example usage: host: qemu -device virtio-serial \ -chardev socket,path=/tmp/vs0.sock,server,nowait,id=qga0 \ -device virtserialport,chardev=qga0,name=org.qemu.quest_agent.0 ... echo "{'execute':'guest-info'}" | socat stdio unix-connect:/tmp/qga0.sock guest: qemu-ga -m virtio-serial -p /dev/virtio-ports/org.qemu.guest_agent.0 \ -p /var/run/qemu-guest-agent.pid -d Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@gmail.com>
2011-07-21qerror: add QERR_JSON_PARSE_ERROR to qerror.cMichael Roth1-0/+5
Missing from previous addition of error to qerror.h. Needed for qerror_format() and friends. Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@gmail.com>
2011-06-08Merge remote-tracking branch 'qmp/for-anthony' into stagingAnthony Liguori1-0/+4
2011-06-07QError: Introduce qerror_format()Luiz Capitulino1-0/+15
Will be used by new error propagation framework to convert Error objects into human-readable form. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-06-07QError: Introduce qerror_format_desc()Luiz Capitulino1-19/+25
Refactor non-QError-specific bits out of qerror_human() into general function that can be used by the error_get_pretty() analogue in the new error-propagation framework. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-06-01QMP: QError: New QERR_UNSUPPORTEDLai Jiangshan1-0/+4
New QERR_UNSUPPORTED for unsupported commands or requests. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-02-10qerror: Add QERR_UNKNOWN_BLOCK_FORMAT_FEATUREKevin Wolf1-0/+5
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-01-10pci: allow devices being tagged as not hotpluggable.Gerd Hoffmann1-0/+4
This patch adds a field to PCIDeviceInfo to tag devices as being not hotpluggable. Any attempt to plug-in or -out such a device will throw an error. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-10-03Use GCC_FMT_ATTR (format checking)Stefan Weil1-2/+4
Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-07-30migration: Accept 'cont' only after successful incoming migrationAmit Shah1-0/+4
When a 'cont' is issued on a VM that's just waiting for an incoming migration, the VM reboots and boots into the guest, possibly corrupting its storage since it could be shared with another VM running elsewhere. Ensure that a VM started with '-incoming' is only run when an incoming migration successfully completes. A new qerror, QERR_MIGRATION_EXPECTED, is added to signal that 'cont' failed due to no incoming migration has been attempted yet. Reported-by: Laine Stump <laine@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-07-01QError: Introduce QERR_QMP_EXTRA_MEMBERLuiz Capitulino1-0/+4
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-07-01QError: Enhance QERR_DEVICE_NOT_ACTIVE's user descLuiz Capitulino1-1/+1
The 'by the guest' part is misleading, it could be disabled by the host too. We will likely need more surgery if we care for the distinction, just dropping the problematic part is good enough for now. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-05-19Fix qtypes' licensesLuiz Capitulino1-1/+1
- Change from GPL to LGPL - Add license text when missing - Minor cosmetic changes to make all headers look the same Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-04-26QError: Improve QERR_QMP_BAD_INPUT_OBJECT descLuiz Capitulino1-1/+1
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-04-26QError: New QERR_QMP_BAD_INPUT_OBJECT_MEMBERLuiz Capitulino1-0/+4
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-04-18error: New QERR_DEVICE_IN_USEMarkus Armbruster1-0/+4
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-04-18error: New QERR_INVALID_PARAMETER_VALUEMarkus Armbruster1-0/+4
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-04-18error: New QERR_DUPLICATE_IDMarkus Armbruster1-0/+4
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-04-18error: Put error definitions back in alphabetical orderMarkus Armbruster1-4/+8
Add suitable comments to help keerp them in order. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-03-27error: Move qerror_report() from qemu-error.[ch] to qerror.[ch]Markus Armbruster1-0/+20
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-27error: Trim includes in qerror.cMarkus Armbruster1-2/+0
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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