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* hw/s390x/ccw-device: Fix memory leak in loadparm setterKevin Wolf2025-06-261-1/+1
| | | | | | | | | | | | | | Commit bdf12f2a fixed the setter for the "loadparm" machine property, which gets a string from a visitor, passes it to s390_ipl_fmt_loadparm() and then forgot to free it. It left another instance of the same problem unfixed in the "loadparm" device property. Fix it. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-ID: <20250625082751.24896-1-kwolf@redhat.com> Reviewed-by: Eric Farman <farman@linux.ibm.com> Reviewed-by: Halil Pasic <pasic@linux.ibm.com> Tested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
* qom: Have class_init() take a const data argumentPhilippe Mathieu-Daudé2025-04-251-1/+1
| | | | | | | | | | Mechanical change using gsed, then style manually adapted to pass checkpatch.pl script. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20250424194905.82506-4-philmd@linaro.org>
* qdev: Improve a few more PropertyInfo @description membersMarkus Armbruster2025-03-061-2/+2
| | | | | | Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20250227085601.4140852-7-armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
* qdev: Change values of PropertyInfo member @type to be QAPI typesMarkus Armbruster2025-03-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PropertyInfo member @type is externally visible via QMP device-list-properties and qom-list-properies. Its meaning is not documented at its definition. It gets passed as @type argument to object_property_add() and object_class_property_add(). This argument's documentation isn't of much help, either: * @type: the type name of the property. This namespace is pretty loosely * defined. Sub namespaces are constructed by using a prefix and then * to angle brackets. For instance, the type 'virtio-net-pci' in the * 'link' namespace would be 'link<virtio-net-pci>'. The two QMP commands document it as # @type: the type of the property. This will typically come in one of # four forms: # # 1) A primitive type such as 'u8', 'u16', 'bool', 'str', or # 'double'. These types are mapped to the appropriate JSON # type. # # 2) A child type in the form 'child<subtype>' where subtype is a # qdev device type name. Child properties create the # composition tree. # # 3) A link type in the form 'link<subtype>' where subtype is a # qdev device type name. Link properties form the device model # graph. "Typically come in one of four forms" followed by three items inspires the level of trust that is appropriate here. Clean up a bunch of funnies: * qdev_prop_fdc_drive_type.type is "FdcDriveType". Its .enum_table refers to QAPI type "FloppyDriveType". So use that. * qdev_prop_reserved_region is "reserved_region". Its only user is an array property called "reserved-regions". Its .set() visits str. So change @type to "str". * trng_prop_fault_event_set.type is "uint32:bits". Its .set() visits uint32, so change @type to "uint32". If we believe mentioning it's actually bits is useful, the proper place would be .description. * ccw_loadparm.type is "ccw_loadparm". It's users are properties called "loadparm". Its .set() visits str. So change @type to "str". * qdev_prop_nv_gpudirect_clique.type is "uint4". Its set() visits uint8, so change @type to "uint8". If we believe mentioning the range is useful, the proper place would be .description. * s390_pci_fid_propinfo.type is "zpci_fid". Its .set() visits uint32. So change type to that, and move the "zpci_fid" to .description. This is admittedly a lousy description, but it's still an improvement; for instance, output of -device zpci,help changes from fid=<zpci_fid> to fid=<uint32> - zpci_fid * Similarly for a raft of PropertyInfo in target/riscv/cpu.c. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20250227085601.4140852-5-armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> [Commit message typo fixed]
* qdev: Rename PropertyInfo member @name to @typeMarkus Armbruster2025-03-061-1/+1
| | | | | | | | | | | PropertyInfo member @name becomes ObjectProperty member @type, while Property member @name becomes ObjectProperty member @name. Rename the former. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20250227085601.4140852-4-armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> [One missed instance of @type fixed]
* include/hw/qdev-properties: Remove DEFINE_PROP_END_OF_LISTRichard Henderson2024-12-191-1/+0
| | | | | | | | | | | | | | Now that all of the Property arrays are counted, we can remove the terminator object from each array. Update the assertions in device_class_set_props to match. With struct Property being 88 bytes, this was a rather large form of terminator. Saves 30k from qemu-system-aarch64. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Lei Yang <leiyang@redhat.com> Link: https://lore.kernel.org/r/20241218134251.4724-21-richard.henderson@linaro.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* hw/s390x: Constify all PropertyRichard Henderson2024-12-151-1/+1
| | | | | Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* hw/s390x: Restrict "loadparm" property to devices that can be used for bootingThomas Huth2024-11-181-3/+1
| | | | | | | | | | | | | | | | Commit bb185de423 ("s390x: Add individual loadparm assignment to CCW device") added a "loadparm" property to all CCW devices. This was a little bit unfortunate, since this property is only useful for devices that can be used for booting, but certainly it is not useful for devices like virtio-gpu or virtio-tablet. Thus let's restrict the property to CCW devices that we can boot from (i.e. virtio-block, virtio-net and vfio-ccw devices). Message-ID: <20241113114741.681096-1-thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Jared Rossi <jrossi@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
* s390x: Add individual loadparm assignment to CCW deviceJared Rossi2024-10-231-0/+46
| | | | | | | | | | | | | | | | | Add a loadparm property to the VirtioCcwDevice object so that different loadparms can be defined on a per-device basis for CCW boot devices. The machine/global loadparm is still supported. If both a global and per-device loadparm are defined, the per-device value will override the global value for that device, but any other devices that do not specify a per-device loadparm will still use the global loadparm. It is invalid to assign a loadparm to a non-boot device. Signed-off-by: Jared Rossi <jrossi@linux.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-ID: <20241020012953.1380075-15-jrossi@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
* hw/s390/ccw-device: Convert to three-phase resetPeter Maydell2024-09-131-3/+4
| | | | | | | | | | | | Convert the TYPE_CCW_DEVICE to three-phase reset. This is a device class which is subclassed, so it needs to be three-phase before we can convert the subclass. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Thomas Huth <thuth@redhat.com> Message-id: 20240830145812.1967042-2-peter.maydell@linaro.org
* s390x/css: Make CCWDeviceClass::realize return boolCédric Le Goater2024-06-241-1/+2
| | | | | | | | | | | | | | Since the realize() handler of CCWDeviceClass takes an 'Error **' argument, best practices suggest to return a bool. See the api/error.h Rules section. While at it, modify the call in s390_ccw_realize(). Signed-off-by: Cédric Le Goater <clg@redhat.com> Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com> Reviewed-by: Anthony Krowiak <akrowiak@linux.ibm.com> Reviewed-by: Eric Farman <farman@linux.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-ID: <20240522170107.289532-3-clg@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
* hw/s390x: Constify VMStateRichard Henderson2023-12-301-1/+1
| | | | | Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20231221031652.119827-51-richard.henderson@linaro.org>
* hw/s390x/ccw: Register qbus type in abstract TYPE_CCW_DEVICE parentPhilippe Mathieu-Daudé2021-05-201-0/+1
| | | | | | | | | | Instead of having all TYPE_CCW_DEVICE children set the bus type to TYPE_VIRTUAL_CSS_BUS, do it once in the abstract parent. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Eric Farman <farman@linux.ibm.com> Message-Id: <20210424145313.3287400-1-f4bug@amsat.org> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
* qdev: set properties with device_class_set_props()Marc-André Lureau2020-01-241-1/+1
| | | | | | | | | | | | | | | | | | | | | The following patch will need to handle properties registration during class_init time. Let's use a device_class_set_props() setter. spatch --macro-file scripts/cocci-macro-file.h --sp-file ./scripts/coccinelle/qdev-set-props.cocci --keep-comments --in-place --dir . @@ typedef DeviceClass; DeviceClass *d; expression val; @@ - d->props = val + device_class_set_props(d, val) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20200110153039.1379601-20-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* Include hw/qdev-properties.h lessMarkus Armbruster2019-08-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | In my "build everything" tree, changing hw/qdev-properties.h triggers a recompile of some 2700 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). Many places including hw/qdev-properties.h (directly or via hw/qdev.h) actually need only hw/qdev-core.h. Include hw/qdev-core.h there instead. hw/qdev.h is actually pointless: all it does is include hw/qdev-core.h and hw/qdev-properties.h, which in turn includes hw/qdev-core.h. Replace the remaining uses of hw/qdev.h by hw/qdev-properties.h. While there, delete a few superfluous inclusions of hw/qdev-core.h. Touching hw/qdev-properties.h now recompiles some 1200 objects. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Daniel P. Berrangé" <berrange@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <20190812052359.30071-22-armbru@redhat.com>
* Include qemu/module.h where needed, drop it from qemu-common.hMarkus Armbruster2019-06-121-0/+2
| | | | | | | | | Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-4-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for hw/usb/dev-hub.c hw/misc/exynos4210_rng.c hw/misc/bcm2835_rng.c hw/misc/aspeed_scu.c hw/display/virtio-vga.c hw/arm/stm32f205_soc.c; ui/cocoa.m fixed up]
* s390x/ccw: make sure all ccw devices are properly resetCornelia Huck2018-05-141-0/+8
| | | | | | | | | | | | | | | | | | | | | Thomas reported that the subchannel for a 3270 device that ended up in a broken state (status pending even though not enabled) did not get out of that state even after a reboot (which involves a subsytem reset). The reason for this is that the 3270 device did not define a reset handler. Let's fix this by introducing a base reset handler (set up for all ccw devices) that resets the subchannel and have virtio-ccw call its virtio-specific reset procedure in addition to that. CC: qemu-stable@nongnu.org Reported-by: Thomas Huth <thuth@redhat.com> Suggested-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Tested-by: Thomas Huth <thuth@redhat.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Halil Pasic <pasic@linux.ibm.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
* s390x: vmstatify config migration for virtio-ccwHalil Pasic2017-07-051-0/+10
| | | | | | | | | | | | | | | | | | | | | Let's vmstatify virtio_ccw_save_config and virtio_ccw_load_config for flexibility (extending using subsections) and for fun. To achieve this we need to hack the config_vector, which is VirtIODevice (that is common virtio) state, in the middle of the VirtioCcwDevice state representation. This is somewhat ugly, but we have no choice because the stream format needs to be preserved. Almost no changes in behavior. Exception is everything that comes with vmstate like extra bookkeeping about what's in the stream, and maybe some extra checks and better error reporting. Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Message-Id: <20170703213414.94298-1-pasic@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
* s390x/css: consolidate the devno property for ccw devicesDong Jia Shi2017-04-211-0/+1
| | | | | | | | | | | 'devno' should rather be a property of the ccw device, instead of a property of a specific virtio-ccw device. Let's consolidate it. While we are at here, also rename CcwDevice.bus_id to CcwDevice.devno to make things clearer. Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* s390x/css: provide introspection for virtual subchannel and device busidDong Jia Shi2017-04-211-0/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Expose the busids of the virtual I/O subchannel and the virtual CCW device to ease debugging. This is needed because: 1. subchannel id are assigned dynamically, and cannot be set from outside. 2. device busid could possibly be auto generated. An example of using HMP to retrieve the property values of a virtio-balloon-ccw device looks like: [root@localhost ~]# lscss -d 0.0.0004 Device Subchan. DevType CU Type Use PIM PAM POM CHPIDs ---------------------------------------------------------------------- 0.0.0004 0.0.0003 0000/00 3832/05 yes 80 80 ff 00000000 00000000 (qemu) info qtree ... ... dev: virtio-balloon-ccw, id "balloon0" devno = "<unset>" ioeventfd = true max_revision = 2 (0x2) dev_id = "fe.0.0004" subch_id = "fe.0.0003" ... ... After migration, if we have the same device that shows up on a different subchannel, we must re-fill the subch_id of the ccw device with the new schid, or the subch_id will have an old wrong schid value. So this also re-fills the subch_id after migration. While we are at it, also neaten the related error handling a bit. Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* s390x/css: Unplug handler of virtual css bridgeJing Liu2016-07-111-0/+27
The previous patch moved virtual css bridge and bus out from virtio-ccw, but kept the direct reference of virtio-ccw specific unplug function inside css-bridge.c. To make the virtual css bus and bridge useful for non-virtio devices, this introduces a common unplug function pointer "unplug" to call specific virtio-ccw unplug parts. Thus, the tight coupling to virtio-ccw can be removed. This unplug pointer is a member of CCWDeviceClass, which is introduced as an abstract device layer called "ccw-device". This layer is between DeviceState and specific devices which are plugged in virtual css bus, like virtio-ccw device. The specific unplug handlers should be assigned to "unplug" during initialization. Signed-off-by: Jing Liu <liujbjl@linux.vnet.ibm.com> Reviewed-by: Sascha Silbe <silbe@linux.vnet.ibm.com> Reviewed-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com> Reviewed-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>