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2016-01-18qom: Change object property iterator API contractDaniel P. Berrange1-18/+4
Currently the ObjectProperty iterator API works as follows: ObjectPropertyIterator *iter; iter = object_property_iter_init(obj); while ((prop = object_property_iter_next(iter))) { ... } object_property_iter_free(iter); This has the benefit that the ObjectPropertyIterator struct can be opaque, but has the downside that callers need to explicitly call a free function. It is also not in keeping with iterator style used elsewhere in QEMU/GLib2. This patch changes the API to use stack allocation instead: ObjectPropertyIterator iter; object_property_iter_init(&iter, obj); while ((prop = object_property_iter_next(&iter))) { ... } Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [AF: Fused ObjectPropertyIterator struct with typedef] Signed-off-by: Andreas Färber <afaerber@suse.de>
2016-01-18qom: Allow properties to be registered against classesDaniel P. Berrange1-15/+221
When there are many instances of a given class, registering properties against the instance is wasteful of resources. The majority of objects have a statically defined list of possible properties, so most of the properties are easily registerable against the class. Only those properties which are conditionally registered at runtime need be recorded against the klass. Registering properties against classes also makes it possible to provide static introspection of QOM - currently introspection is only possible after creating an instance of a class, which severely limits its usefulness. This impl only supports simple scalar properties. It does not attempt to allow child object / link object properties against the class. There are ways to support those too, but it would make this patch more complicated, so it is left as an exercise for the future. There is no equivalent to object_property_del() provided, since classes must be immutable once they are defined. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2016-01-15dump: qemunotes aren't commonly neededAndrew Jones1-2/+2
Only one of three architectures implementing qmp-dump-guest-memory write qemu notes. And, another architecture (arm/aarch64) is coming, which won't use them either. Make the common implementation truly common. (No functional change.) Signed-off-by: Andrew Jones <drjones@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1452542185-10914-3-git-send-email-drjones@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-19qom: Clean up assertions to display values on failureAndreas Färber1-6/+6
Instead of using g_assert() for integer comparisons, use g_assert_cmpint() so that we can see the respective values. While at it, fix one stray indentation. Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-11-19qom: Replace object property list with GHashTablePavel Fedin1-44/+76
ARM GICv3 systems with large number of CPUs create lots of IRQ pins. Since every pin is represented as a property, number of these properties becomes very large. Every property add first makes sure there's no duplicates. Traversing the list becomes very slow, therefore QEMU initialization takes significant time (several seconds for e. g. 16 CPUs). This patch replaces list with GHashTable, making lookup very fast. The only drawback is that object_child_foreach() and object_child_foreach_recursive() cannot add or remove properties during traversal, since GHashTableIter does not have modify-safe version. However, the code seems not to modify objects via these functions. Signed-off-by: Pavel Fedin <p.fedin@samsung.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Tested-by: Pavel Fedin <p.fedin@samsung.com> [AF: Fixed object_property_del_{all,child}() issues; g_hash_table_contains() -> g_hash_table_lookup(), suggested by Daniel] Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-11-18qom: Introduce ObjectPropertyIterator struct for iterationDaniel P. Berrange1-0/+28
Some users of QOM need to be able to iterate over properties defined against an object instance. Currently they are just directly using the QTAIL macros against the object properties data structure. This is bad because it exposes them to changes in the data structure used to store properties, as well as changes in functionality such as ability to register properties against the class. This provides an ObjectPropertyIterator struct which will insulate the callers from the particular data structure used to store properties. It can be used thus ObjectProperty *prop; ObjectPropertyIterator *iter; iter = object_property_iter_init(obj); while ((prop = object_property_iter_next(iter))) { ... do something with prop ... } object_property_iter_free(iter); Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Tested-by: Pavel Fedin <p.fedin@samsung.com> [AF: Fixed examples, style cleanups] Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-11-11error: More error_setg() usageEric Blake1-2/+2
A few uses of error_set(ERROR_CLASS_GENERIC_ERROR) were missed in c6bd8c706, or have snuck in since. Nuke them. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1447224690-9743-19-git-send-email-eblake@redhat.com> Acked-by: Andreas Färber <afaerber@suse.de> [Indentation tidied up, commit message tweaked] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-06qom/object: fix 2 comment typosCao jin1-1/+1
Also change the misleading definition of macro OBJECT_CLASS_CHECK Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-10-12qapi: Consistent generated code: prefer visitor 'v'Eric Blake2-18/+18
We had some pointless differences in the generated code for visit, command marshalling, and events; unifying them makes it easier for future patches to consolidate to common helper functions. This is one patch of a series to clean up these differences. This patch names the local visitor variable 'v' rather than 'm'. Related objects, such as 'QapiDeallocVisitor', are also named by their initials instead of an unrelated leading m. No change in semantics to the generated code. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1443565276-4535-12-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-09-19qom: Fix invalid error check in property_get_str()Markus Armbruster1-4/+8
When a function returns a null pointer on error and only on error, you can do if (!foo(foos, errp)) { ... handle error ... } instead of the more cumbersome Error *err = NULL; if (!foo(foos, &err)) { error_propagate(errp, err); ... handle error ... } A StringProperty's getter, however, may return null on success! We then fail to call visit_type_str(). Screwed up in 6a146eb, v1.1. Fails tests/qom-test in my current, heavily hacked QAPI branch. No reproducer for master known (but I didn't look hard). Cc: Anthony Liguori <anthony@codemonkey.ws> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Cc: qemu-stable@nongnu.org Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-09-19qom: Do not reuse errp after a possible errorMarkus Armbruster1-6/+35
The argument for an Error **errp parameter must point to a null pointer. If it doesn't, and an error happens, error_set() fails its assertion. Instead of foo(foos, errp); bar(bars, errp); you need to do something like Error *err = NULL; foo(foos, &err); if (err) { error_propagate(errp, err); goto out; } bar(bars, errp); out: Screwed up in commit 0e55884 (v1.3.0): property_get_bool(). Screwed up in commit 1f21772 (v2.1.0): object_property_get_enum() and object_property_get_uint16List(). Screwed up in commit a8e3fbe (v2.4.0): property_get_enum(), property_set_enum(). Found by inspection, no actual crashes observed. Fix them up. Cc: Anthony Liguori <anthony@codemonkey.ws> Cc: Hu Tao <hutao@cn.fujitsu.com> Cc: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Cc: qemu-stable@nongnu.org Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-09-16Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell1-0/+1
* Linux header update and cleanup * Support for HyperV crash report * Cleanup of target-specific HMP commands * Multiarch batch * Checkpatch fix for Perl 5.22 * NBD fix * Revert incorrect commit 5243722376 # gpg: Signature made Wed 16 Sep 2015 16:39:01 BST using RSA key ID 78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" * remotes/bonzini/tags/for-upstream: (24 commits) nbd: release exp->blk after all clients are closed checkpatch: Escape left braces in regex monitor: uninclude cpu_ldst include/exec: Move cputlb exec.c defs out cputlb: Change tlb_set_dirty() arg to cpu cputlb: move CPU_LOOP() for tlb_reset() to exec.c translate: move real_host_page setting to -common tcg: Move tci_tb_ptr to -common tcg: split tcg_op_defs to -common translate-all: Move tcg_handle_interrupt() to -common cpu-exec: Migrate some generic fns to cpu-exec-common qemu-char: Use g_new() & friends where that makes obvious sense monitor: added generation of documentation for hmp-commands-info.hx hmp-commands.hx: fix end of table info monitor: remove target-specific code from monitor.c hmp-commands-info: move info_cmds content out of monitor.c i386/kvm: Hyper-v crash msrs set/get'ers and migration kvm: Add kvm system event crash handler cpu: Add crash_occurred flag into CPUState target-i386: move asm-x86/hyperv.h to standard-headers ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-16cpu: Add crash_occurred flag into CPUStateAndrey Smetanin1-0/+1
CPUState::crash_occurred field inside CPUState marks that guest crash occurred. This value is added into cpu common migration subsection. Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com> Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Paolo Bonzini <pbonzini@redhat.com> CC: Andreas Färber <afaerber@suse.de> Message-Id: <1435924905-8926-12-git-send-email-den@openvz.org> [Document the new field. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-15qom: allow QOM to be linked into tools binariesDaniel P. Berrange1-3/+4
The qom objects are currently added to common-obj-y which is only linked into the system emulators. The later crypto patches will depend on QOM infrastructure and will also be used from tools binaries. Thus the QOM objects are moved into a new qom-obj-y variable which can be referenced when linking tools, system emulators and tests. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2015-09-14Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell1-0/+3
* Support for jemalloc * qemu_mutex_lock_iothread "No such process" fix * cutils: qemu_strto* wrappers * iohandler.c simplification * Many other fixes and misc patches. And some MTTCG work (with Emilio's fixes squashed): * Signal-free TCG kick * Removing spinlock in favor of QemuMutex * User-mode emulation multi-threading fixes/docs # gpg: Signature made Thu 10 Sep 2015 09:03:07 BST using RSA key ID 78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" * remotes/bonzini/tags/for-upstream: (44 commits) cutils: work around platform differences in strto{l,ul,ll,ull} cpu-exec: fix lock hierarchy for user-mode emulation exec: make mmap_lock/mmap_unlock globally available tcg: comment on which functions have to be called with mmap_lock held tcg: add memory barriers in page_find_alloc accesses remove unused spinlock. replace spinlock by QemuMutex. cpus: remove tcg_halt_cond and tcg_cpu_thread globals cpus: protect work list with work_mutex scripts/dump-guest-memory.py: fix after RAMBlock change configure: Add support for jemalloc add macro file for coccinelle configure: factor out adding disas configure vhost-scsi: fix wrong vhost-scsi firmware path checkpatch: remove tests that are not relevant outside the kernel checkpatch: adapt some tests to QEMU CODING_STYLE: update mixed declaration rules qmp: Add example usage of strto*l() qemu wrapper cutils: Add qemu_strtoull() wrapper cutils: Add qemu_strtoll() wrapper ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-09cpus: protect work list with work_mutexPaolo Bonzini1-0/+1
Protect the list of queued work items with something other than the BQL, as a preparation for running the work items outside it. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-09tcg: synchronize cpu->exit_request and cpu->tcg_exit_req accessesPaolo Bonzini1-0/+2
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-08qom: Add recursive version of object_child_for_eachPeter Crosthwaite1-3/+22
Useful for iterating through an entire QOM subtree. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1441383782-24378-2-git-send-email-peter.maydell@linaro.org
2015-08-14exec: drop cpu_can_do_io, just read cpu->can_do_ioPaolo Bonzini1-1/+1
After commit 626cf8f (icount: set can_do_io outside TB execution, 2014-12-08), can_do_io is set to 1 if not executing code. It is no longer necessary to make this assumption in cpu_can_do_io. It is also possible to remove the use_icount test, simply by never setting cpu->can_do_io to 0 unless use_icount is true. With these changes cpu_can_do_io boils down to a read of cpu->can_do_io. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-09cpu: Convert cpu_index into a bitmapBharata B Rao1-0/+7
Currently CPUState::cpu_index is monotonically increasing and a newly created CPU always gets the next higher index. The next available index is calculated by counting the existing number of CPUs. This is fine as long as we only add CPUs, but there are architectures which are starting to support CPU removal, too. For an architecture like PowerPC which derives its CPU identifier (device tree ID) from cpu_index, the existing logic of generating cpu_index values causes problems. With the currently proposed method of handling vCPU removal by parking the vCPU fd in QEMU (Ref: http://lists.gnu.org/archive/html/qemu-devel/2015-02/msg02604.html), generating cpu_index this way will not work for PowerPC. This patch changes the way cpu_index is handed out by maintaining a bit map of the CPUs that tracks both addition and removal of CPUs. The CPU bitmap allocation logic is part of cpu_exec_init(), which is called by instance_init routines of various CPU targets. Newly added cpu_exec_exit() API handles the deallocation part and this routine is called from generic CPU instance_finalize. Note: This new CPU enumeration is for !CONFIG_USER_ONLY only. CONFIG_USER_ONLY continues to have the old enumeration logic. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> [AF: max_cpus -> MAX_CPUMASK_BITS] Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-07-09cpu: Initialize breakpoint/watchpoint lists in cpu_common_initfn()Eduardo Habkost1-0/+2
One small step in the simplification of cpu_exec_init(). Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
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>
2015-06-22qobject: Use 'bool' for qboolEric Blake1-2/+2
We require a C99 compiler, so let's use 'bool' instead of 'int' when dealing with boolean values. There are few enough clients to fix them all in one pass. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Alberto Garcia <berto@igalia.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-06-19qom: Don't pass string table to object_get_enum() functionDaniel P. Berrange1-2/+17
Now that properties can be explicitly registered as an enum type, there is no need to pass the string table to the object_get_enum() function. The object property registration already has a pointer to the string table. In changing this method signature, the hostmem backend object has to be converted to use the new enum property registration code, which simplifies it somewhat. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-06-19qom: Add an object_property_add_enum() helper functionDaniel P. Berrange1-0/+58
A QOM property can be parsed as enum using the visit_type_enum() helper function, but this forces callers to use the more complex generic object_property_add() method when registering it. It also requires that users of that object have access to the string map when they want to read the property value. This patch introduces a specialized object_property_add_enum() method which simplifies the use of enum properties, so the setters/getters directly get passed the int value. typedef enum { MYDEV_TYPE_FROG, MYDEV_TYPE_ALLIGATOR, MYDEV_TYPE_PLATYPUS, MYDEV_TYPE_LAST } MyDevType; Then provide a table of enum <-> string mappings static const char *const mydevtypemap[MYDEV_TYPE_LAST + 1] = { [MYDEV_TYPE_FROG] = "frog", [MYDEV_TYPE_ALLIGATOR] = "alligator", [MYDEV_TYPE_PLATYPUS] = "platypus", [MYDEV_TYPE_LAST] = NULL, }; Assuming an object struct of typedef struct { Object parent_obj; MyDevType devtype; ...other fields... } MyDev; The property can then be registered as follows: static int mydev_prop_get_devtype(Object *obj, Error **errp G_GNUC_UNUSED) { MyDev *dev = MYDEV(obj); return dev->devtype; } static void mydev_prop_set_devtype(Object *obj, int value, Error **errp G_GNUC_UNUSED) { MyDev *dev = MYDEV(obj); dev->devtype = value; } object_property_add_enum(obj, "devtype", mydevtypemap, "MyDevType", mydev_prop_get_devtype, mydev_prop_set_devtype, NULL); Note there is no need to check the range of 'value' in the setter, because the string->enum conversion code will have already done that and reported an error as required. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-06-19qom: Make enum string tables const-correctDaniel P. Berrange1-1/+1
The enum string table parameters in various QOM/QAPI methods are declared 'const char *strings[]'. This results in const warnings if passed a variable that was declared as static const char * const strings[] = { .... }; Add the extra const annotation to the parameters, since neither the string elements, nor the array itself should ever be modified. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-06-19qom: Add object_new_with_props() / object_new_withpropv() helpersDaniel P. Berrange1-0/+109
It is reasonably common to want to create an object, set a number of properties, register it in the hierarchy and then mark it as complete (if a user creatable type). This requires quite a lot of error prone, verbose, boilerplate code to achieve. First a pair of functions object_set_props() / object_set_propv() are added which allow for a list of objects to be set in one single API call. Then object_new_with_props() / object_new_with_propv() constructors are added which simplify the sequence of calls to create an object, populate properties, register in the object composition tree and mark the object complete, into a single method call. Usage would be: Error *err = NULL; Object *obj; obj = object_new_with_propv(TYPE_MEMORY_BACKEND_FILE, object_get_objects_root(), "hostmem0", &err, "share", "yes", "mem-path", "/dev/shm/somefile", "prealloc", "yes", "size", "1048576", NULL); Note all property values are passed in string form and will be parsed into their required data types, using normal QOM semantics for parsing from string format. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-06-19qom: Add helper function for getting user objects rootDaniel P. Berrange1-0/+5
Add object_get_objects_root() function which is a convenience for obtaining the Object * located at /objects in the object composition tree. Convert existing code over to use the new API where appropriate. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-06-19qom: strdup() target property name on object_property_add_alias()Eduardo Habkost1-2/+3
With this, object_property_add_alias() callers can safely free the target property name, like what already happens with the 'name' argument to all object_property_add*() functions. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-06-05qom: add object_property_add_const_linkPaolo Bonzini1-0/+16
Suggested-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-04-01qom: Add can_be_deleted callback to UserCreatableClassLin Ma1-0/+12
If backends implement the can_be_deleted and it returns false, Then the qmp_object_del won't delete the given backends. Signed-off-by: Lin Ma <lma@suse.com> Message-Id: <1427704589-7688-2-git-send-email-lma@suse.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-31qom: Fix object_property_add_alias() with [*]Andreas Färber1-1/+1
Commit 8074264 (qom: Add description field in ObjectProperty struct) introduced property descriptions and copied them for alias properties. Instead of using the caller-supplied property name, use the returned property name for setting the description. This avoids an Error when setting a property description for a property with literal "[*]" that doesn't exist due to automatic property naming in object_property_add(). Reviewed-by: Gonglei <arei.gonglei@huawei.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: qemu-stable@nongnu.org (v2.2+) Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-03-19qom: Fix warning from SparseStefan Weil1-1/+1
Sparse report: qom/cpu.c:99:5: warning: returning void-valued expression Cc: Andreas Färber <afaerber@suse.de> Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-03-09Generalize QOM publishing of date and time from mc146818rtc.cDavid Gibson1-0/+79
The mc146818rtc driver exposes the current RTC date and time via the "date" property in QOM (which is also aliased to the machine's "rtc-time" property). Currently it uses a custom visitor function rtc_get_date to do this. This patch introduces new helpers to the QOM core to expose struct tm valued properties via a getter function, so that this functionality can be more easily duplicated in other RTC implementations. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2015-02-18error: Use error_report_err() where appropriateMarkus Armbruster1-2/+1
Coccinelle semantic patch: @@ expression E; @@ - error_report("%s", error_get_pretty(E)); - error_free(E); + error_report_err(E); @@ expression E, S; @@ - error_report("%s", error_get_pretty(E)); + error_report_err(E); ( exit(S); | abort(); ) Trivial manual touch-ups in block/sheepdog.c. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2014-12-20cpu: initialize cpu->exception_index on resetPaolo Bonzini1-0/+1
This unbreaks linux-user (broken by e511b4d, cpu-exec: reset exception_index correctly, 2014-11-26). Reported-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com> Tested-by: Eduardo Habkost <ehabkost@redhat.com> Message-id: 1418989994-17244-2-git-send-email-pbonzini@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-11-02qom/cpu: remove the unused CPU hot-plug notifierGu Zheng1-10/+0
Remove the unused CPU hot-plug notifier. Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
2014-10-23qom: Demote already-has-a-parent to a regular errorPeter Crosthwaite1-1/+5
Rather than an abort(). This allows callers to decide whether parenting an already-parented object is a fatal error condition. Useful for providing a default value for an object's parent in the case where you want to set one iff it doesn't already have one. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23qom: Allow clearing of a Link propertyPeter Crosthwaite1-3/+7
By passing in "" to object_property_set_link. The lead user of this is the QDEV GPIO framework which will implement GPIO disconnects via an "unlink". GPIO disconnection is used by qtest's irq_intercept_out command. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-15qom: Add description field in ObjectProperty structGonglei1-0/+20
The descriptions can serve as documentation in the code, and they can be used to provide better help. Copy property descriptions when copying alias properties. 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> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-10-15qom: Add error handler for object alias propertyGonglei1-1/+8
object_property_add_alias() is called at some places at present. And its parameter errp may not NULL, such as object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread", &error_abort); This patch add error handler for security. Cc: Stefan Hajnoczi <stefanha@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Markus Armbruster <armbru@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-10-15qom: Add error handler for object_property_print()Gonglei1-2/+10
Avoid the caller of object_property_print() leaking string argument's memory, such as qdev_print_props() when encounter errors. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-09-25qom: Add cpu_exec_interrupt hookRichard Henderson1-0/+6
Continuing the removal of ifdefs from cpu_exec. Cc: Andreas Färber <afaerber@suse.de> Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1410626734-3804-7-git-send-email-rth@twiddle.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-25qom: Add cpu_exec_enter and cpu_exec_exit hooksRichard Henderson1-2/+4
In preparation for removing a bunch of ifdefs from cpu_exec. Cc: Andreas Färber <afaerber@suse.de> Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1410626734-3804-2-git-send-email-rth@twiddle.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-12cpu-exec: Make debug_excp_handler a QOM CPU methodPeter Maydell1-0/+5
Make the debug_excp_handler target specific hook into a QOM CPU method. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-04qom: Add automatic arrayification to object_property_add()Peter Crosthwaite1-0/+21
If "[*]" is given as the last part of a QOM property name, treat that as an array property. The added property is given the first available name, replacing the * with a decimal number counting from 0. First add with name "foo[*]" will be "foo[0]". Second "foo[1]" and so on. Callers may inspect the ObjectProperty * return value to see what number the added property was given. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-09-04qom: Make object_child_foreach() safe for objects removalAlexey Kardashevskiy1-2/+2
Current object_child_foreach() uses QTAILQ_FOREACH() to walk through children and that makes children removal from the callback impossible. This makes object_child_foreach() use QTAILQ_FOREACH_SAFE(). Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: Hu Tao <hutao@cn.fujitsu.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-09-02qom/object.c, hmp.c: fix string_output_get_string() memory leakChen Fan1-2/+10
string_output_get_string() uses g_string_free(str, false) to transfer the 'str' pointer to callers and never free it. Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Hu Tao <hutao@cn.fujitsu.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-17qom: object: move unparenting to the child property's release callbackPaolo Bonzini1-10/+4
This ensures that the unparent callback is called automatically when the parent object is finalized. Note that there's no need to keep a reference neither in object_unparent nor in object_finalize_child_property. The reference held by the child property itself will do. Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 03:23:49 +0000