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Stefan Hajnoczi 9561fda8d9 qom: Make QOM link property unref optional 
Some object_property_add_link() callers expect property deletion to
unref the link property object.  Other callers expect to manage the
refcount themselves.  The former are currently broken and therefore leak
the link property object.

This patch adds a flags argument to object_property_add_link() so the
caller can specify which refcount behavior they require.  The new
OBJ_PROP_LINK_UNREF_ON_RELEASE flag causes the link pointer to be
unreferenced when the property is deleted.

This fixes refcount leaks in qdev.c, xilinx_axidma.c, xilinx_axienet.c,
s390-virtio-bus.c, virtio-pci.c, virtio-rng.c, and ui/console.c.

Rationale for refcount behavior:

 * hw/core/qdev.c
   - bus children are explicitly unreferenced, don't interfere
   - parent_bus is essentially a read-only property that doesn't hold a
     refcount, don't unref
   - hotplug_handler is leaked, do unref

 * hw/dma/xilinx_axidma.c
   - rx stream "dma" links are set using set_link, therefore they
     need unref
   - tx streams are set using set_link, therefore they need unref

 * hw/net/xilinx_axienet.c
   - same reasoning as hw/dma/xilinx_axidma.c

 * hw/pcmcia/pxa2xx.c
   - pxa2xx bypasses set_link and therefore does not use refcounts

 * hw/s390x/s390-virtio-bus.c
 * hw/virtio/virtio-pci.c
 * hw/virtio/virtio-rng.c
 * ui/console.c
   - set_link is used and there is no explicit unref, do unref

Cc: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Anthony Liguori <aliguori@amazon.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
 		2014-03-19 22:05:20 +01:00
audio Add the ability to vary Spice playback and record rates, to facilitate Opus support. 2014-02-03 11:05:15 +01:00
backends ui/sdl2 : initial port to SDL 2.0 (v2.0) 2014-03-05 09:52:05 +01:00
block block/nfs: report errors from libnfs 2014-03-19 09:39:41 +01:00
bsd-user cpu: Move opaque field from CPU_COMMON to CPUState 2014-03-13 19:20:47 +01:00
default-configs Add Enhanced Three-Speed Ethernet Controller (eTSEC) 2014-03-05 03:06:45 +01:00
disas libvixl: Fix format strings for several int64_t values 2014-03-10 14:56:29 +00:00
docs Docs: Introduce multiport serial support in qemupciserial.inf. 2014-03-12 15:03:42 +00:00
dtc@bc895d6d09 dtc: add submodule 2013-04-18 13:50:53 +02:00
fpu softfloat: export squash_input_denormal functions 2014-03-17 16:31:51 +00:00
fsdev hw/9pfs: Include virtio-9p-device.o in build 2014-03-04 09:20:49 +05:30
gdb-xml target-arm: Support fp registers in gdb stub 2013-12-17 19:42:32 +00:00
hw qom: Make QOM link property unref optional 2014-03-19 22:05:20 +01:00
include qom: Make QOM link property unref optional 2014-03-19 22:05:20 +01:00
libcacard Add a 'name' parameter to qemu_thread_create 2014-03-09 21:09:38 +02:00
linux-headers update linux headers to kvm/next 2014-02-27 09:50:45 +01:00
linux-user linux-user: Fix build if headers don't define _LINUX_CAPABILITY_VERSION_1 2014-03-19 18:19:57 +00:00
net Net patches 2014-03-12 16:45:25 +00:00
pc-bios prep: Update ppc_rom.bin 2014-03-13 20:15:37 +01:00
pixman@97336fad32 qapi: move include files to include/qobject/ 2012-12-19 08:31:31 +01:00
po po: Update all *.po files 2013-08-07 12:48:00 -05:00
qapi qapi: Add missing null check to opts_start_struct() 2014-03-03 11:17:45 -05:00
qga qga: Remove unneeded include file 2014-03-03 09:46:27 +04:00
qobject qdict: Extract non-QDicts in qdict_array_split() 2014-02-21 22:11:23 +01:00
qom qom: Make QOM link property unref optional 2014-03-19 22:05:20 +01:00
roms prep: Update ppc_rom.bin 2014-03-13 20:15:37 +01:00
scripts scripts/qemu-binfmt-conf.sh: Add AArch64 registration 2014-03-17 16:31:53 +00:00
slirp misc: Spelling and grammar fixes in comments 2013-10-26 13:06:45 +04:00
stubs blockdev: Refuse to open encrypted image unless paused 2014-03-14 16:24:42 +01:00
sysconfigs/target Eliminate cpus-x86_64.conf file 2012-09-21 15:12:58 +02:00
target-alpha target-alpha: fix subl and s8subl indentation 2014-03-17 13:21:12 +01:00
target-arm target-arm: A64: Add saturating accumulate ops (USQADD/SUQADD) 2014-03-18 23:10:06 +00:00
target-cris cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-i386 cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-lm32 cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-m68k cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-microblaze cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-mips cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-moxie cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-openrisc cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-ppc misc: Fix typos in comments 2014-03-15 13:54:18 +04:00
target-s390x cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-sh4 cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-sparc cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-unicore32 cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-xtensa cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
tcg tcg-sparc: Convert to new ldst opcodes 2014-03-17 11:13:26 -07:00
tests trivial patches for 2014-03-15 2014-03-15 18:22:11 +00:00
trace trace: Fix build warnings for Win32 build 2014-03-12 14:19:58 +01:00
ui qom: Make QOM link property unref optional 2014-03-19 22:05:20 +01:00
util Block pull request 2014-03-13 15:33:04 +00:00
.exrc qemu: add .exrc 2012-09-07 09:02:44 +03:00
.gitignore Add qga/qapi-generated to .gitignore 2014-03-15 13:54:18 +04:00
.gitmodules Add OpenHack'Ware submodule 2014-03-12 17:26:32 +01:00
.mailmap Update mailmap 2013-09-05 09:40:31 -05:00
.travis.yml .travis.yml: add IRC notifications for build failures 2014-03-15 13:54:18 +04:00
CODING_STYLE Replace Qemu by QEMU in internal documentation 2012-04-07 13:58:25 +00:00
COPYING
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COPYING.LIB
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Changelog Use qemu-project.org domain name 2013-10-11 09:34:56 -07:00
HACKING HACKING: Document vaddr type usage 2013-07-23 02:41:31 +02:00
LICENSE LICENSE: clarify 2013-08-12 09:15:12 -05:00
MAINTAINERS acpi,pc,pci,virtio,memory bug fixes 2014-03-10 19:14:11 +00:00
Makefile Makefile: Fix "make clean" 2014-03-17 11:50:19 +00:00
Makefile.objs iothread: add I/O thread object 2014-03-13 14:42:24 +01:00
Makefile.target build: softmmu targets do not have a "main.o" file 2014-02-20 13:14:18 +01:00
README Use qemu-project.org domain name 2013-10-11 09:34:56 -07:00
VERSION Update version for v2.0-rc0 2014-03-13 20:08:15 -07:00
aio-posix.c aio: make aio_poll(ctx, true) block with no fds 2013-12-06 16:53:51 +01:00
aio-win32.c aio: make aio_poll(ctx, true) block with no fds 2013-12-06 16:53:51 +01:00
arch_init.c XBZRLE: Fix qemu crash when resize the xbzrle cache 2014-03-08 22:22:34 +01:00
async.c aio: add aio_context_acquire() and aio_context_release() 2014-03-13 14:42:24 +01:00
balloon.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
block-migration.c block: per caller dirty bitmap 2013-11-29 13:40:33 +01:00
block.c block: Add error handling to bdrv_invalidate_cache() 2014-03-19 09:39:41 +01:00
blockdev-nbd.c nbd: use BlockDriverState refcnt 2013-09-06 15:25:08 +02:00
blockdev.c blockdev: Fix NULL pointer dereference in blockdev-add 2014-03-06 17:27:28 +01:00
blockjob.c Use error_is_set() only when necessary 2014-02-17 11:57:23 -05:00
bt-host.c sysemu: avoid proliferation of include/ subdirectories 2013-04-15 18:19:25 +02:00
bt-vhci.c sysemu: avoid proliferation of include/ subdirectories 2013-04-15 18:19:25 +02:00
configure block/nfs: bump libnfs requirement to 1.9.3 2014-03-19 09:39:41 +01:00
coroutine-gthread.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
coroutine-sigaltstack.c Merge remote-tracking branch 'kwolf/for-anthony' into staging 2013-02-26 07:44:39 -06:00
coroutine-ucontext.c Fix warnings suppressors to honor --disable-werror 2013-04-17 10:28:04 -05:00
coroutine-win32.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
cpu-exec.c cpu-exec: Change cpu_resume_from_signal() argument to CPUState 2014-03-13 19:20:48 +01:00
cpus.c cpu: Move icount_decr field from CPU_COMMON to CPUState 2014-03-13 19:20:46 +01:00
cputlb.c cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
device-hotplug.c hw/boards: Convert current_machine to MachineState 2014-03-12 20:13:02 +01:00
device_tree.c device_tree: qemu_fdt_setprop: Rename val_array arg 2013-12-20 01:58:12 +01:00
disas.c disas: Implement disassembly output for A64 2014-02-08 14:50:48 +00:00
dma-helpers.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
dump.c dump: add 'query-dump-guest-memory-capability' command 2014-02-28 11:52:03 -05:00
exec.c exec: Fix CPU rework fallout 2014-03-19 19:47:15 +01:00
gdbstub.c exec: Change cpu_breakpoint_{insert,remove{,_by_ref,_all}} argument 2014-03-13 19:20:48 +01:00
hmp-commands.hx block: update block commit documentation regarding image truncation 2014-01-24 16:12:49 +01:00
hmp.c dump: make kdump-compressed format available for 'dump-guest-memory' 2014-02-28 11:52:03 -05:00
hmp.h monitor: add object-add (QMP) and object_add (HMP) command 2014-01-06 13:45:47 -05:00
iohandler.c iohandler: switch to GPollFD 2013-02-21 16:17:31 -06:00
ioport.c portio: Allow to mark portio lists as coalesced MMIO flushing 2013-10-17 17:24:15 +02:00
iothread.c qmp: add query-iothreads command 2014-03-13 14:42:24 +01:00
kvm-all.c Merge remote-tracking branch 'remotes/kvm/uq/master' into staging 2014-03-11 19:39:17 +00:00
kvm-stub.c Revert "KVM: Split QEMUMachine typedef into separate header" 2014-03-13 03:49:48 +01:00
main-loop.c main-loop: Suppress "I/O thread spun" warnings for qtest 2014-03-13 21:36:50 +01:00
memory.c memory_region_present: return false if address is not found in child MemoryRegion 2014-03-09 21:09:37 +02:00
memory_mapping.c cpu: Use QTAILQ for CPU list 2013-09-03 12:25:55 +02:00
migration-exec.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
migration-fd.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
migration-rdma.c rdma: rename 'x-rdma' => 'rdma' 2014-02-25 14:30:28 +01:00
migration-tcp.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
migration-unix.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
migration.c block: Add error handling to bdrv_invalidate_cache() 2014-03-19 09:39:41 +01:00
module-common.c module: implement module loading 2014-02-20 13:14:18 +01:00
monitor.c input: mouse: switch monitor to new core 2014-03-05 09:52:03 +01:00
nbd.c nbd: move socket wrappers to qemu-nbd 2014-02-21 21:02:23 +01:00
os-posix.c oslib-posix: Fix build on FreeBSD 2014-03-13 14:34:16 +00:00
os-win32.c util: Split out exec_dir from os_find_datadir 2014-02-20 13:12:54 +01:00
page_cache.c Fix two XBZRLE corruption issues 2014-02-25 14:30:28 +01:00
qapi-schema.json qmp: add query-iothreads command 2014-03-13 14:42:24 +01:00
qdev-monitor.c qdev-monitor: Set properties after parent is assigned in device_add 2014-03-12 20:13:02 +01:00
qdict-test-data.txt
…
qemu-bridge-helper.c qemu-bridge-helper: force usage of a very high MAC address for the bridge 2013-03-28 12:58:52 -05:00
qemu-char.c char: restore read callback on a reattached (hotplug) chardev 2014-03-13 10:33:45 +01:00
qemu-coroutine-io.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
qemu-coroutine-lock.c coroutine: remove qemu_co_queue_wait_insert_head 2013-12-02 17:11:49 +01:00
qemu-coroutine-sleep.c coroutine: add co_aio_sleep_ns() to allow sleep in block drivers 2013-10-30 12:22:09 +01:00
qemu-coroutine.c coroutine: add ./configure --disable-coroutine-pool 2013-09-12 10:12:48 +02:00
qemu-doc.texi Describe flaws in qcow/qcow2 encryption in the docs 2014-01-31 22:05:03 +01:00
qemu-file.c qemu_file: Fix mismerge of "use fwrite() correctly" 2014-03-08 22:22:34 +01:00
qemu-img-cmds.hx qemu-img: add -l for snapshot in convert 2013-12-04 15:19:00 +01:00
qemu-img.c qemu-img convert: Fix progress output 2014-03-05 15:58:32 +01:00
qemu-img.texi Describe flaws in qcow/qcow2 encryption in the docs 2014-01-31 22:05:03 +01:00
qemu-io-cmds.c qemu-io-cmds: Fixed typo in example for writev. 2014-03-19 09:39:41 +01:00
qemu-io.c qemu-io: Extended "--cmd" description in usage text 2014-03-19 09:39:41 +01:00
qemu-log.c qemu-log: default to stderr for logging output 2013-02-26 13:31:47 -06:00
qemu-nbd.c qemu-nbd: Fix coverity issues 2014-03-17 13:21:11 +01:00
qemu-nbd.texi qemu-nbd: add doc for option -f 2013-12-04 15:19:00 +01:00
qemu-options-wrapper.h vl.c: In qemu -h output, only print options for the arch we are running as 2011-12-19 10:27:33 -06:00
qemu-options.h vl.c: Move option generation logic into a wrapper file 2011-12-19 10:27:33 -06:00
qemu-options.hx gtk: Allow to activate grab-on-hover from the command line 2014-03-17 14:33:55 +01:00
qemu-seccomp.c seccomp: add some basic shared memory syscalls to the whitelist 2014-01-20 11:19:34 -02:00
qemu-tech.texi qemu-tech.texi: update implemented xtensa features list 2012-11-29 13:00:52 -06:00
qemu-timer.c timer: add timer_mod_anticipate and timer_mod_anticipate_ns 2013-10-17 17:31:00 +02:00
qemu.nsi nsis: Improved support for parallel installation of 32 and 64 bit code 2013-11-07 07:02:44 +01:00
qemu.sasl sasl: Avoid 'Could not find keytab file' in syslog 2014-03-15 13:54:18 +04:00
qmp-commands.hx qmp: add query-iothreads command 2014-03-13 14:42:24 +01:00
qmp.c hw/boards: Convert current_machine to MachineState 2014-03-12 20:13:02 +01:00
qtest.c kvm: Add a new machine option kvm-type 2014-03-05 03:06:24 +01:00
rules.mak rules.mak: Fix per object libs extraction 2014-03-17 13:21:11 +01:00
savevm.c migration: extend section_start/end traces 2014-03-08 22:22:34 +01:00
spice-qemu-char.c spice: hook qemu_chr_fe_set_open() event to ports 2014-02-03 11:05:15 +01:00
tcg-runtime.c tcg: Implement multiword multiply helpers 2013-02-23 17:25:28 +00:00
tci.c misc: Use new rotate functions 2013-09-25 21:23:05 +02:00
thread-pool.c Add a 'name' parameter to qemu_thread_create 2014-03-09 21:09:38 +02:00
thunk.c exec: move include files to include/exec/ 2012-12-19 08:31:31 +01:00
tpm.c Use error_is_set() only when necessary 2014-02-17 11:57:23 -05:00
trace-events migration: extend section_start/end traces 2014-03-08 22:22:34 +01:00
translate-all.c exec: Change cpu_abort() argument to CPUState 2014-03-13 19:52:28 +01:00
translate-all.h translate-all: Change tb_check_watchpoint() argument to CPUState 2014-03-13 19:20:48 +01:00
user-exec.c user-exec: Change exception_action() argument to CPUState 2014-03-13 19:52:48 +01:00
version.rc Use qemu-project.org domain name 2013-10-11 09:34:56 -07:00
vl.c vl.c: Fix OpenBSD compilation issue due to namespace collisions 2014-03-19 21:00:34 +01:00
vmstate.c Fix vmstate_info_int32_le comparison/assign 2014-02-25 14:30:28 +01:00
xbzrle.c Move XBZRLE encoding code to a separate file to allow testing 2013-02-01 08:32:20 +01:00
xen-all.c kvm: Add a new machine option kvm-type 2014-03-05 03:06:24 +01:00
xen-mapcache.c hw: move headers to include/ 2013-04-08 18:13:10 +02:00
xen-stub.c kvm: Add a new machine option kvm-type 2014-03-05 03:06:24 +01:00

README 

Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org

- QEMU team