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2015-09-22monitor: allow device_del to accept QOM pathsDaniel P. Berrange1-5/+15
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>
2015-09-18hmp: Allow for error message hints on HMPEric Blake1-28/+14
Commits 7216ae3d and d2828429 disabled some error message hints, all because a change to use modern error reporting meant that the hint would be output prior to the actual error. Fix this by making hints a first-class member of Error. For example, we are now back to the pleasant: $ qemu-system-x86_64 --nodefaults -S --vnc :0 --chardev null,id=, qemu-system-x86_64: --chardev null,id=,: Parameter 'id' expects an identifier Identifiers consist of letters, digits, '-', '.', '_', starting with a letter. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <1441901956-21991-1-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-06-22Include qapi/qmp/qerror.h exactly where neededMarkus Armbruster1-0/+1
In particular, don't include it into headers. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-06-22qerror: Move #include out of qerror.hMarkus Armbruster1-0/+1
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-06-22qmp: Wean off qerror_report()Markus Armbruster1-9/+6
The traditional QMP command handler interface int qmp_FOO(Monitor *mon, const QDict *params, QObject **ret_data); doesn't provide for returning an Error object. Instead, the handler is expected to stash it in the monitor with qerror_report(). When we rebased QMP on top of QAPI, we didn't change this interface. Instead, commit 776574d introduced "middle mode" as a temporary aid for converting existing QMP commands to QAPI one by one. More than three years later, we're still using it. Middle mode has two effects: * Instead of the native input marshallers static void qmp_marshal_input_FOO(QDict *, QObject **, Error **) it generates input marshallers conforming to the traditional QMP command handler interface. * It suppresses generation of code to register them with qmp_register_command() This permits giving them internal linkage. As long as we need qmp-commands.hx, we can't use the registry behind qmp_register_command(), so the latter has to stay for now. The former has to go to get rid of qerror_report(). Changing all QMP commands to fit the QAPI mold in one go was impractical back when we started, but by now there are just a few stragglers left: do_qmp_capabilities(), qmp_qom_set(), qmp_qom_get(), qmp_object_add(), qmp_netdev_add(), do_device_add(). Switch middle mode to generate native input marshallers, and adapt the stragglers. Simplifies both the monitor code and the stragglers. Rename do_qmp_capabilities() to qmp_capabilities(), and do_device_add() to qmp_device_add, because that's how QMP command handlers are named today. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-06-22qerror: Clean up QERR_ macros to expand into a single stringMarkus Armbruster1-6/+6
These macros expand into error class enumeration constant, comma, string. Unclean. Has been that way since commit 13f59ae. The error class is always ERROR_CLASS_GENERIC_ERROR since the previous commit. Clean up as follows: * Prepend every use of a QERR_ macro by ERROR_CLASS_GENERIC_ERROR, and delete it from the QERR_ macro. No change after preprocessing. * Rewrite error_set(ERROR_CLASS_GENERIC_ERROR, ...) into error_setg(...). Again, no change after preprocessing. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-06-22qerror: Eliminate QERR_DEVICE_NOT_FOUNDMarkus Armbruster1-2/+4
Error classes other than ERROR_CLASS_GENERIC_ERROR should not be used in new code. Hiding them in QERR_ macros makes new uses hard to spot. Fortunately, there's just one such macro left. Eliminate it with this coccinelle semantic patch: @@ expression EP, E; @@ -error_set(EP, QERR_DEVICE_NOT_FOUND, E) +error_set(EP, ERROR_CLASS_DEVICE_NOT_FOUND, "Device '%s' not found", E) Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-06-22QemuOpts: Wean off qerror_report_err()Markus Armbruster1-1/+1
qerror_report_err() is a transitional interface to help with converting existing monitor commands to QMP. It should not be used elsewhere. The only remaining user in qemu-option.c is qemu_opts_parse(). Is it used in QMP context? If not, we can simply replace qerror_report_err() by error_report_err(). The uses in qemu-img.c, qemu-io.c, qemu-nbd.c and under tests/ are clearly not in QMP context. The uses in vl.c aren't either, because the only QMP command handlers there are qmp_query_status() and qmp_query_machines(), and they don't call it. Remaining uses: * drive_def(): Command line -drive and such, HMP drive_add and pci_add * hmp_chardev_add(): HMP chardev-add * monitor_parse_command(): HMP core * tmp_config_parse(): Command line -tpmdev * net_host_device_add(): HMP host_net_add * net_client_parse(): Command line -net and -netdev * qemu_global_option(): Command line -global * vnc_parse_func(): Command line -display, -vnc, default display, HMP change, QMP change. Bummer. * qemu_pci_hot_add_nic(): HMP pci_add * usb_net_init(): Command line -usbdevice, HMP usb_add Propagate errors through qemu_opts_parse(). Create a convenience function qemu_opts_parse_noisily() that passes errors to error_report_err(). Switch all non-QMP users outside tests to it. That leaves vnc_parse_func(). Propagate errors through it. Since I'm touching it anyway, rename it to vnc_parse(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-06-22qdev-monitor: Propagate errors through qdev_device_add()Markus Armbruster1-21/+15
Also polish an error message while I'm touching the line anyway, Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Andreas Färber <afaerber@suse.de>
2015-06-22qdev-monitor: Propagate errors through set_property()Markus Armbruster1-3/+3
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Andreas Färber <afaerber@suse.de>
2015-06-22qdev-monitor: Convert qbus_find() to ErrorMarkus Armbruster1-12/+20
As usual, the conversion breaks printing explanatory messages after the error: actual printing of the error gets delayed, so the explanations precede rather than follow it. Pity. Disable them for now. See also commit 7216ae3. While there, eliminate QERR_BUS_NOT_FOUND, and clean up unusual spelling in the error message. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2015-06-22qdev-monitor: Fix check for full busMarkus Armbruster1-14/+17
Property bus has always been too screwed up to be really usable for values other than plain bus IDs. This just fixes a bug that crept in in commit 1395af6 "qdev: add a maximum device allowed field for the bus." It doesn't always fail when it should: $ qemu-system-x86_64 -nodefaults -device virtio-serial-pci -device virtio-rng-device,bus=pci.0/virtio-serial-pci/virtio-bus Happily plugs the virtio-rng-device into the virtio-bus provided by virtio-serial-pci, even though its only slot is already occupied by a virtio-serial-device. And sometimes fails when it shouldn't: $ qemu-system-x86_64 -nodefaults -device virtio-serial-pci -device virtserialport,bus=virtio-bus/virtio-serial-device Yes, the virtio-bus is full, but the virtio-serial-bus provided by virtio-serial-device isn't, and that's the one we're trying to use. Root cause: we check "bus full" when we resolve the first element of the path. That's the correct one only when it's also the last one. Fix by moving the "bus full" check to right before we return a bus. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2015-06-22qdev-monitor: Stop error avalanche in qbus_find_recursive()Markus Armbruster1-24/+40
Reproducer: $ qemu-system-x86_64 -nodefaults -device virtio-rng-pci -device virtio-rng-pci -device virtio-rng-device,bus=virtio-bus qemu-system-x86_64: -device virtio-rng-device,bus=virtio-bus: Bus 'virtio-bus' is full qemu-system-x86_64: -device virtio-rng-device,bus=virtio-bus: Bus 'virtio-bus' is full qemu-system-x86_64: -device virtio-rng-device,bus=virtio-bus: Bus 'virtio-bus' not found qbus_find_recursive() reports the "is full" error itself, and leaves reporting "not found" to its caller. The result is confusion. Write it a function contract that permits leaving all error reporting to the caller, and implement it. Update callers to detect and report "is full". Screwed up when commit 1395af6 added the max_dev limit and the "is full" error condition to enforce it. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2015-06-17s390x: Switch to s390-ccw machine as defaultAlexander Graf1-3/+3
We now finally have TCG support for the basic set of instructions necessary to run the s390-ccw machine. That means in any aspect possible that machine type is now superior to the legacy s390-virtio machine. Switch over to the ccw machine as default. That way people don't get a halfway broken machine with the s390x target. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
2015-06-09QemuOpts: Convert qemu_opt_foreach() to ErrorMarkus Armbruster1-2/+3
Retain the function value for now, to permit selective conversion of its callers. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2015-06-09QemuOpts: Drop qemu_opt_foreach() parameter abort_on_failureMarkus Armbruster1-1/+1
When the argument is non-zero, qemu_opt_foreach() stops on callback returning non-zero, and returns that value. When the argument is zero, it doesn't stop, and returns the callback's value from the last iteration. The two callers that pass zero could just as well pass one: * qemu_spice_init()'s callback add_channel() either returns zero or exit()s. * config_write_opts()'s callback config_write_opt() always returns zero. Drop the parameter, and always stop. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2015-06-05vl: allow full-blown QemuOpts syntax for -globalPaolo Bonzini1-7/+11
-global does not work for drivers that have a dot in their name, such as cfi.pflash01. This is just a parsing limitation, because such globals can be declared easily inside a -readconfig file. To allow this usage, support the full QemuOpts key/value syntax for -global too, for example "-global driver=cfi.pflash01,property=secure,value=on". The two formats do not conflict, because the key/value syntax does not have a period before the first equal sign. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-17qom: Implement info qom-tree HMP commandAndreas Färber1-0/+57
To complement qdev's bus-oriented info qtree, info qom-tree prints a hierarchical view of the QOM composition tree. By default, the machine composition tree is shown. This can be overriden by supplying a path argument, such as "info qom-tree /". Tested-by: Alistair Francis <alistair.francis@xilinx.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-02-26QemuOpts: Drop qemu_opt_set(), rename qemu_opt_set_err(), fix useMarkus Armbruster1-3/+3
qemu_opt_set() is a wrapper around qemu_opt_set() that reports the error with qerror_report_err(). Most of its users assume the function can't fail. Make them use qemu_opt_set_err() with &error_abort, so that should the assumption ever break, it'll break noisily. Just two users remain, in util/qemu-config.c. Switch them to qemu_opt_set_err() as well, then rename qemu_opt_set_err() to qemu_opt_set(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2015-02-18hmp: Name HMP info handler functions hmp_info_SUBCOMMAND()Markus Armbruster1-2/+2
Some are called do_info_SUBCOMMAND() (old ones, usually), some hmp_info_SUBCOMMAND(), some SUBCOMMAND_info(), sometimes SUBCOMMAND pointlessly differs in spelling. Normalize to hmp_info_SUBCOMMAND(), where SUBCOMMAND is exactly the subcommand name with '-' replaced by '_'. Exceptions: * sun4m_irq_info(), sun4m_pic_info() renamed to sun4m_hmp_info_irq(), sun4m_hmp_info_pic(). * lm32_irq_info(), lm32_pic_info() renamed to lm32_hmp_info_irq(), lm32_hmp_info_pic(). Signed-off-by: Markus Armbruster <armbru@redhat.com>
2014-11-04qdev: Use qdev_get_device_class() for -device <type>,helpEduardo Habkost1-6/+3
Make sure we try to list properties from classes that can be safely used with "-device". Fixes the following crashes: $ qemu-system-x86_64 -device x86_64-cpu,help ** ERROR:qom/object.c:336:object_initialize_with_type: assertion failed: (type->abstract == false) Aborted (core dumped) $ qemu-system-x86_64 -device host-x86_64-cpu,help qemu-system-x86_64: [...]/target-i386/cpu.c:1329: host_x86_cpu_initfn: Assertion `(kvm_allowed)' failed. Aborted (core dumped) After applying this patch: $ qemu-system-x86_64 -device x86_64-cpu,help Parameter 'driver' expects non-abstract device type $ qemu-system-x86_64 -device host-x86_64-cpu,help Parameter 'driver' expects pluggable device type Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-11-04qdev: Move error printing to the end of qdev_device_help()Eduardo Habkost1-3/+6
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-11-04qdev: Create qdev_get_device_class() functionEduardo Habkost1-28/+42
Extract the DeviceClass lookup from qdev_device_add() to a separate function. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-10-15qmp: Print descriptions of object propertiesGonglei1-1/+6
Add a new "description" field to DevicePropertyInfo. The descriptions can serve as documentation in the code, and they can be used to provide better help. For example: $./qemu-system-x86_64 -device virtio-blk-pci,? Before this patch: virtio-blk-pci.iothread=link<iothread> virtio-blk-pci.x-data-plane=bool virtio-blk-pci.scsi=bool virtio-blk-pci.config-wce=bool virtio-blk-pci.serial=str virtio-blk-pci.secs=uint32 virtio-blk-pci.heads=uint32 virtio-blk-pci.cyls=uint32 virtio-blk-pci.discard_granularity=uint32 virtio-blk-pci.bootindex=int32 virtio-blk-pci.opt_io_size=uint32 virtio-blk-pci.min_io_size=uint16 virtio-blk-pci.physical_block_size=uint16 virtio-blk-pci.logical_block_size=uint16 virtio-blk-pci.drive=str virtio-blk-pci.virtio-backend=child<virtio-blk-device> virtio-blk-pci.command_serr_enable=on/off virtio-blk-pci.multifunction=on/off virtio-blk-pci.rombar=uint32 virtio-blk-pci.romfile=str virtio-blk-pci.addr=pci-devfn virtio-blk-pci.event_idx=on/off virtio-blk-pci.indirect_desc=on/off virtio-blk-pci.vectors=uint32 virtio-blk-pci.ioeventfd=on/off virtio-blk-pci.class=uint32 After: virtio-blk-pci.iothread=link<iothread> virtio-blk-pci.x-data-plane=bool (on/off) virtio-blk-pci.scsi=bool (on/off) virtio-blk-pci.config-wce=bool (on/off) virtio-blk-pci.serial=str virtio-blk-pci.secs=uint32 virtio-blk-pci.heads=uint32 virtio-blk-pci.cyls=uint32 virtio-blk-pci.discard_granularity=uint32 virtio-blk-pci.bootindex=int32 virtio-blk-pci.opt_io_size=uint32 virtio-blk-pci.min_io_size=uint16 virtio-blk-pci.physical_block_size=uint16 (A power of two between 512 and 32768) virtio-blk-pci.logical_block_size=uint16 (A power of two between 512 and 32768) virtio-blk-pci.drive=str (ID of a drive to use as a backend) virtio-blk-pci.virtio-backend=child<virtio-blk-device> virtio-blk-pci.command_serr_enable=bool (on/off) virtio-blk-pci.multifunction=bool (on/off) virtio-blk-pci.rombar=uint32 virtio-blk-pci.romfile=str virtio-blk-pci.addr=int32 (Slot and optional function number, example: 06.0 or 06) virtio-blk-pci.event_idx=bool (on/off) virtio-blk-pci.indirect_desc=bool (on/off) virtio-blk-pci.vectors=uint32 virtio-blk-pci.ioeventfd=bool (on/off) virtio-blk-pci.class=uint32 Cc: Markus Armbruster <armbru@redhat.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-10-15qdev: device_del: Search for to be unplugged device in 'peripheral' containerIgor Mammedov1-4/+9
device_add puts every device with 'id' inside of 'peripheral' container using id's value as the last component name. Use it by replacing recursive search on sysbus with path lookup in 'peripheral' container, which could handle both BUS and BUS-less device cases. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-10-15qdev: do not allow to instantiate non hotpluggable device with device_addIgor Mammedov1-1/+2
It will allow explicitly mark device as not hotpluggable and avoid its creation with following error at realize time and destroying it afterwards anyway. Instead of it will error out even before instance of device is created. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-10-15Access BusState::allow_hotplug using wraper qbus_is_hotpluggable()Igor Mammedov1-1/+1
It would allow to transparently switch detection whether Bus is hotpluggable from allow_hotplug field to hotplug_handler link and to drop allow_hotplug field once all users are converted to hotplug handler API. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-09-22qdev-monitor: fix segmentation fault on qdev_device_help()Gonglei1-1/+1
Normally, qmp_device_list_properties() may return NULL when a device haven't special properties excpet Object and DeviceState properties, such as virtio-balloon-device. We just need check local_err instead of prop_list. Example: Segmentation fault (core dumped) The backtrace as below: Program received signal SIGSEGV, Segmentation fault. 0x00005555559af1a8 in error_get_pretty (err=0x0) at util/error.c:152 152 return err->msg; (gdb) bt func=0x55555574a6ca <device_help_func>, opaque=0x0, abort_on_failure=0) at util/qemu-option.c:1072 Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-2014-08-15' ↵Peter Maydell1-1/+1
into staging trivial patches for 2014-08-15 # gpg: Signature made Fri 15 Aug 2014 16:13:03 BST using RSA key ID A4C3D7DB # gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>" # gpg: aka "Michael Tokarev <mjt@corpit.ru>" # gpg: aka "Michael Tokarev <mjt@debian.org>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D 4324 457C E0A0 8044 65C5 # Subkey fingerprint: 6F67 E18E 7C91 C5B1 5514 66A7 BEE5 9D74 A4C3 D7DB * remotes/mjt/tags/trivial-patches-2014-08-15: ivshmem: check the value returned by fstat() l2cap: fix access to freed memory intc: i8259: Convert Array allocation to g_new0 ppc: convert g_new(qemu_irq usages to g_new0 ssi: xilinx_spi: Initialise CS GPIOs as NULL vl: free err qemu-options.hx: fix typo about l2tpv3 vmxnet3: don't use 'Yoda conditions' vl: don't use 'Yoda conditions' spice: don't use 'Yoda conditions' don't use 'Yoda conditions' isa-bus: don't use 'Yoda conditions' audio: don't use 'Yoda conditions' usb: don't use 'Yoda conditions' CODING_STYLE: Section about conditional statement pci-host: update uncorresponding description pci-host: update obsolete reference about piix_pci.c qemu-options.hx: fix a typo of chardev memory: Update obsolete comment about AddrRange field type apic: Fix reported DFR content Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-15don't use 'Yoda conditions'Gonglei1-1/+1
imitate nearby code about using '!value' or 'value == NULL' Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-15qdev-monitor: include QOM properties in -device FOO, help outputStefan Hajnoczi1-23/+17
Update -device FOO,help to include QOM properties in addition to qdev properties. Devices are gradually adding more QOM properties that are not reflected as qdev properties. It is important to report all device properties since management tools like libvirt use this information (and device-list-properties QMP) to detect the presence of QEMU features. This patch reuses the device-list-properties QMP machinery to avoid code duplication. Reported-by: Cole Robinson <crobinso@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Tested-by: Cole Robinson <crobinso@redhat.com>
2014-05-28qdev: Implement named GPIOsPeter Crosthwaite1-5/+11
Implement named GPIOs on the Device layer. Listifies the existing GPIOs stuff using string keys. Legacy un-named GPIOs are preserved by using a NULL name string - they are just a single matchable element in the name list. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-05-05qdev: Fix crash by validating the object typeAmos Kong1-1/+1
QEMU crashed when I try to list device parameters and the driver name is actually an available bus name. # qemu -device virtio-pci-bus,? # qemu -device virtio-bus,? # qemu -device virtio-serial-bus,? qdev-monitor.c:212:qdev_device_help: Object 0x7fd932f50620 is not an instance of type device Aborted (core dumped) We can also reproduce this bug by adding device from monitor, so it's worth to fix the crash. (qemu) device_add virtio-serial-bus qdev-monitor.c:491:qdev_device_add: Object 0x7f5e89530920 is not an instance of type device Aborted (core dumped) Cc: qemu-stable@nongnu.org Signed-off-by: Amos Kong <akong@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-04-25qerror.h: Remove QERR defines that are only used onceCole Robinson1-4/+8
Just hardcode them in the callers Cc: Luiz Capitulino <lcapitulino@redhat.com> Cc: Markus Armbruster <armbru@redhat.com> Signed-off-by: Cole Robinson <crobinso@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-03-12qdev-monitor: Set properties after parent is assigned in device_addAmos Kong1-6/+9
Test steps: (qemu) device_add e1000,addr=adsf Property 'e1000.addr' doesn't take value 'adsf' (qemu) info qtree Then qemu crashed. Currently we set a link to the new device from its parent bus, but the device hasn't been added to QOM tree yet. When it fails to set properties, object_unparent() can't clean up the device. Delay setting of device properties until the device has been added to the QOM composition tree. This way, when setting a property fails, object_unparent() can clean up the device properly. Signed-off-by: Amos Kong <akong@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-02-26qdev-monitor: set DeviceState opts before calling realizeBandan Das1-1/+3
Setting opts before the realize property is set allows the following patch to make decisions based on whether the user specified "rombar". This also avoids having to create a new tristate property especially for this purpose Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Bandan Das <bsd@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2014-02-20Merge remote-tracking branch 'remotes/afaerber/tags/qom-devices-for-peter' ↵Peter Maydell1-3/+3
into staging QOM infrastructure fixes and device conversions * QTest cleanups and test cases for PCI NICs * NAND fix for "info qtree" * Cleanup and extension of QOM machine tests * IndustryPack test cases and conversion to QOM realize * I2C cleanups * Cleanups of legacy qdev properties # gpg: Signature made Mon 17 Feb 2014 22:15:37 GMT using RSA key ID 3E7E013F # gpg: Good signature from "Andreas Färber <afaerber@suse.de>" # gpg: aka "Andreas Färber <afaerber@suse.com>" * remotes/afaerber/tags/qom-devices-for-peter: (49 commits) qtest: Include system headers before user headers qapi: Refine human printing of sizes qdev: Use QAPI type names for properties qdev: Add enum property types to QAPI schema block: Handle "rechs" and "large" translation options qdev: Remove hex8/32/64 property types qdev: Remove most legacy printers qdev: Use human mode in "info qtree" qapi: Add human mode to StringOutputVisitor qdev: Inline qdev_prop_parse() qdev: Legacy properties are just strings qdev: Legacy properties are now read-only qdev: Remove legacy parsers for hex8/32/64 qdev: Sizes are now parsed by StringInputVisitor qapi: Add size parser to StringInputVisitor qtest: Don't segfault with invalid -qtest option ipack: Move IndustryPack out of hw/char/ ipoctal232: QOM parent field cleanup ipack: QOM parent field cleanup for IPackDevice ipack: QOM parent field cleanup for IPackBus ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-17Use error_is_set() only when necessaryMarkus Armbruster1-1/+1
error_is_set(&var) is the same as var != NULL, but it takes whole-program analysis to figure that out. Unnecessarily hard for optimizers, static checkers, and human readers. Dumb it down to obvious. Gets rid of several dozen Coverity false positives. Note that the obvious form is already used in many places. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-14qdev: Use human mode in "info qtree"Paolo Bonzini1-1/+1
Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-02-14qapi: Add human mode to StringOutputVisitorPaolo Bonzini1-1/+1
This will be used by "info qtree". For numbers it prints both the decimal and hex values. For sizes it rounds to the nearest power of 2^10. For strings, it puts quotes around the string and separates NULL and empty string. Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-02-14qdev: Inline qdev_prop_parse()Paolo Bonzini1-2/+2
Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-01-14Merge remote branch 'luiz/queue/qmp' into qmpqEdgar E. Iglesias1-1/+1
* luiz/queue/qmp: migration: qmp_migrate(): keep working after syntax error qerror: Remove assert_no_error() qemu-option: Remove qemu_opts_create_nofail target-i386: Remove assert_no_error usage hw: Remove assert_no_error usages qdev: Delete dead code error: Add error_abort monitor: add object-add (QMP) and object_add (HMP) command monitor: add object-del (QMP) and object_del (HMP) command qom: catch errors in object_property_add_child qom: fix leak for objects created with -object rng: initialize file descriptor to -1 qemu-monitor: HMP cpu-add wrapper vl: add missing transition debug->finish_migrate Message-Id: 1389045795-18706-1-git-send-email-lcapitulino@redhat.com Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-01-06qemu-option: Remove qemu_opts_create_nofailPeter Crosthwaite1-1/+1
This is a boiler-plate _nofail variant of qemu_opts_create. Remove and use error_abort in call sites. null/0 arguments needs to be added for the id and fail_if_exists fields in affected callsites due to argument inconsistency between the normal and no_fail variants. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-12-24qdev-monitor: Improve error message for -device nonexistantMarkus Armbruster1-1/+2
Once upon a time, the error message was: qemu: -device nonexistant: Device "nonexistant" not found. Try -device '?' for a list. But progress marches on, and conversion to QError (commit 0204276) changed it into: Invalid parameter 'driver' Try with argument '?' for a list. Progress didn't stop there, of course. After a couple of iterations, we arrived at the current message (commit 6acbe4c): qemu: -device nonexistant: Parameter 'driver' expects device type Mission accomplished: this is complete mush. We've since abandoned our quest for "rich" error objects, fortunately before it turned all error messages into mush. Time to undo the damage to this one. Make it: qemu: -device nonexistant: nonexistant is not a valid device model name Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-12-24qdev-monitor: Avoid device_add crashing on non-device driver nameMarkus Armbruster1-1/+1
Watch this: $ upstream-qemu -nodefaults -S -display none -monitor stdio QEMU 1.7.50 monitor - type 'help' for more information (qemu) device_add rng-egd /work/armbru/qemu/qdev-monitor.c:491:qdev_device_add: Object 0x2089b00 is not an instance of type device Aborted (core dumped) Crashes because "rng-egd" exists, but isn't a subtype of TYPE_DEVICE. Broken in commit 18b6dad. Cc: qemu-stable@nongnu.org Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-12-23qdev: Do not let the user try to device_add when it cannot workMarkus Armbruster1-0/+5
Such devices have always been unavailable and omitted from the list of available devices shown by device_add help. Until commit 18b6dad silently broke the former, setting up nasty traps for unwary users, like this one: $ qemu-system-x86_64 -nodefaults -monitor stdio -display none QEMU 1.6.50 monitor - type 'help' for more information (qemu) device_add apic Segmentation fault (core dumped) I call that a regression. Fix it. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-12-23qdev: Replace no_user by cannot_instantiate_with_device_add_yetMarkus Armbruster1-2/+3
In an ideal world, machines can be built by wiring devices together with configuration, not code. Unfortunately, that's not the world we live in right now. We still have quite a few devices that need to be wired up by code. If you try to device_add such a device, it'll fail in sometimes mysterious ways. If you're lucky, you get an unmysterious immediate crash. To protect users from such badness, DeviceClass member no_user used to make device models unavailable with -device / device_add, but that regressed in commit 18b6dad. The device model is still omitted from help, but is available anyway. Attempts to fix the regression have been rejected with the argument that the purpose of no_user isn't clear, and it's prone to misuse. This commit clarifies no_user's purpose. Anthony suggested to rename it cannot_instantiate_with_device_add_yet_due_to_internal_bugs, which I shorten somewhat to keep checkpatch happy. While there, make it bool. Every use of cannot_instantiate_with_device_add_yet gets a FIXME comment asking for rationale. The next few commits will clean them all up, either by providing a rationale, or by getting rid of the use. With that done, the regression fix is hopefully acceptable. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-11-05qdev-monitor: Inline qdev_init() for device_addAndreas Färber1-1/+6
For historic reasons, qdev_init() unparents the device on failure. Inline this to make the error paths clearer and consistent. Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-11-05qdev-monitor: Avoid qdev as variable nameAndreas Färber1-16/+16
Prepares for bringing error cleanup code into canonical QOM form. Includes a whitespace removal after curly brace by Stefan. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-11-05qdev: Drop misleading qdev_free() functionStefan Hajnoczi1-1/+1
The qdev_free() function name is misleading since all the function does is unlink the device from its parent. The device is not necessarily freed. The device will be freed when its QObject refcount reaches zero. It is usual for the parent (bus) to hold the final reference but there are cases where something else holds a reference so "free" is a misleading name. Call object_unparent(obj) directly instead of having a qdev wrapper function. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
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