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Fam Zheng 3d8b7aed60 block: Fix dirty bitmap in bdrv_co_discard 
Unsetting dirty globally with discard is not very correct. The discard may zero
out sectors (depending on can_write_zeroes_with_unmap), we should replicate
this change to destination side to make sure that the guest sees the same data.

Calling bdrv_reset_dirty also troubles mirror job because the hbitmap iterator
doesn't expect unsetting of bits after current position.

So let's do it the opposite way which fixes both problems: set the dirty bits
if we are to discard it.

Reported-by: wangxiaolong@ucloud.cn
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
(cherry picked from commit 508249952c)
Conflicts:
	block/io.c

* applied manually to avoid dependency on 61007b316
* squashed in 6e82e4b bdrv_reset_dirty() is static in
  2.3.0 and becomes unused as of this patch
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2015-07-29 21:46:07 -05:00
audio
audio: Don't free hw resources until after hw backend is stopped
2014-12-22 23:12:25 +00:00
backends
hostmem: Prevent removing an in-use memory backend
2015-04-01 10:06:38 +02:00
block
mirror: Do zero write on target if sectors not allocated
2015-07-29 21:46:07 -05:00
bsd-user
cpu: Make cpu_init() return QOM CPUState object
2015-03-10 17:33:51 +01:00
default-configs
hw/usb: Include USB files only if necessary
2015-03-18 11:50:47 +01:00
disas
cris: remove unused cris_cond15 declarations
2015-03-19 11:11:55 +03:00
docs
fw_cfg: add documentation file (docs/specs/fw_cfg.txt)
2015-04-14 13:21:08 +02:00
dtc @ bc895d6d09
…
fpu
softfloat: expand out STATUS macro
2015-02-06 16:11:38 +00:00
fsdev
Fix typos in comments
2015-03-19 11:30:37 +03:00
gdb-xml
…
hw
virtio-ccw: complete handling of guest-initiated resets
2015-07-29 18:50:08 -05:00
include
qmp: Add optional bool "unmap" to drive-mirror
2015-07-29 21:43:36 -05:00
libcacard
libcacard: stop linking against every single 3rd party library
2015-02-10 09:27:20 +03:00
libdecnumber
…
linux-headers
synchronize Linux headers to 4.0-rc3
2015-03-10 09:26:22 +01:00
linux-user
rcu: do not create thread in pthread_atfork callback
2015-04-01 10:06:38 +02:00
migration
rdma: Fix cleanup in error paths
2015-03-26 15:31:46 +01:00
net
net: synchronize net_host_device_remove with host_net_remove_completion
2015-03-12 19:59:39 +00:00
pc-bios
pseries: Update SLOF firmware image to qemu-slof-20150313
2015-03-25 22:49:45 +01:00
pixman @ 87eea99e44
…
po
…
qapi
qmp: Add optional bool "unmap" to drive-mirror
2015-07-29 21:43:36 -05:00
qga
qga/commands-posix: Fix bug in guest-fstrim
2015-07-29 18:24:00 -05:00
qobject
qjson: Drop trailing space for pretty formatting
2014-12-10 10:25:30 +01:00
qom
qom: Add can_be_deleted callback to UserCreatableClass
2015-04-01 10:06:38 +02:00
roms
pseries: Update SLOF firmware image to qemu-slof-20150313
2015-03-25 22:49:45 +01:00
scripts
build: pass .d file name to scripts/make_device_config.sh, fix makefile target
2015-03-18 12:07:25 +01:00
slirp
…
stubs
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
2015-03-09 09:14:28 +00:00
sysconfigs/target
…
target-alpha
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-arm
target-arm: Avoid buffer overrun on UNPREDICTABLE ldrd/strd
2015-07-28 18:23:18 -05:00
target-cris
cris: remove unused cris_cond15 declarations
2015-03-19 11:11:55 +03:00
target-i386
target-i386: remove superfluous TARGET_HAS_SMC macro
2015-04-04 09:45:59 +03:00
target-lm32
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-m68k
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-microblaze
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-mips
Merge remote-tracking branch 'remotes/mjt/tags/pull-trivial-patches-2015-03-19' into staging
2015-03-19 14:10:20 +00:00
target-moxie
target-moxie: Fix warnings from Sparse (one-bit signed bitfield)
2015-03-19 11:11:55 +03:00
target-openrisc
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-ppc
target-ppc: don't invalidate msr MSR_HVB bit in cpu_post_load
2015-04-17 11:44:01 +01:00
target-s390x
Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20150316' into staging
2015-03-16 11:44:55 +00:00
target-sh4
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-sparc
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-tricore
target-tricore: Fix check which was always false
2015-04-04 09:45:59 +03:00
target-unicore32
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-xtensa
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
tcg
tcg/tcg-op.c: Fix ld/st of 64 bit values on 32-bit bigendian hosts
2015-04-09 10:51:10 +01:00
tests
iotests: qcow2 COW with minimal L2 cache size
2015-07-29 18:27:34 -05:00
trace
Remove superfluous '\n' around error_report()
2015-03-10 08:15:33 +03:00
ui
spice-display: fix segfault in qemu_spice_create_update
2015-07-29 18:34:12 -05:00
util
util/qemu-config: fix regression of qmp_query_command_line_options
2015-04-02 15:57:27 +02:00
.exrc
…
.gitignore
gitignore: Ignore more .pod files.
2015-04-04 09:45:59 +03:00
.gitmodules
…
.mailmap
…
.travis.yml
.travis.yml: Add "--enable-modules"
2015-01-26 12:27:05 +01:00
accel.c
…
aio-posix.c
block: Use g_new0() for a bit of extra type checking
2014-12-10 10:31:21 +01:00
aio-win32.c
block: Use g_new0() for a bit of extra type checking
2014-12-10 10:31:21 +01:00
arch_init.c
migration: remove last_sent_block from save_page_header
2015-03-26 15:31:46 +01:00
async.c
aio: strengthen memory barriers for bottom half scheduling
2015-04-09 10:29:29 +01:00
balloon.c
balloon: Fix typo
2015-02-23 10:56:09 -05:00
block.c
block: Fix dirty bitmap in bdrv_co_discard
2015-07-29 21:46:07 -05:00
blockdev-nbd.c
nbd: Fix up comment after commit e140177
2015-03-25 13:38:07 +01:00
blockdev.c
qmp: Add optional bool "unmap" to drive-mirror
2015-07-29 21:43:36 -05:00
blockjob.c
…
bootdevice.c
misc: fix typos in copyright declaration
2015-03-26 14:21:43 +01:00
bt-host.c
…
bt-vhci.c
…
Changelog
…
CODING_STYLE
…
configure
Revert seccomp tests that allow it to be used on non-x86 architectures
2015-04-13 12:28:48 +01:00
COPYING
…
COPYING.LIB
…
coroutine-gthread.c
…
coroutine-sigaltstack.c
…
coroutine-ucontext.c
coroutine-ucontext: use __thread
2015-01-13 13:43:28 +00:00
coroutine-win32.c
…
cpu-exec.c
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
2015-02-24 13:58:18 +00:00
cpus.c
cpus: Don't kick un-realized cpus.
2015-03-25 13:38:07 +01:00
cputlb.c
exec: RCUify AddressSpaceDispatch
2015-02-16 17:30:19 +01:00
device_tree.c
machine: query phandle-start machine property
2015-03-11 18:17:11 +01:00
device-hotplug.c
pci-hotplug-old: Has been dead for five major releases, bury
2015-03-01 12:37:54 +01:00
disas.c
…
dma-helpers.c
…
dump.c
…
exec.c
Revert "exec: Respect as_tranlsate_internal length clamp"
2015-04-01 10:06:38 +02:00
gdbstub.c
gdbstub: avoid possible NULL pointer dereference
2015-03-10 08:15:34 +03:00
HACKING
…
hmp-commands.hx
hmp: Fix texinfo documentation
2015-03-19 11:35:52 +03:00
hmp.c
qmp: Add optional bool "unmap" to drive-mirror
2015-07-29 21:43:36 -05:00
hmp.h
qom: Implement qom-set HMP command
2015-03-17 14:31:15 +01:00
iohandler.c
…
ioport.c
…
iothread.c
…
kvm-all.c
kvm-all: Sync dirty-bitmap from kvm before kvm destroy the corresponding dirty_bitmap
2015-04-02 15:58:37 +02:00
kvm-stub.c
…
LICENSE
vfio: move hw/misc/vfio.c to hw/vfio/pci.c Move vfio.h into include/hw/vfio
2014-12-19 15:24:06 -07:00
main-loop.c
…
MAINTAINERS
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
2015-03-12 09:13:07 +00:00
Makefile
Use $(MAKE) for recursive make
2015-04-02 15:58:39 +02:00
Makefile.objs
QJSON: Add JSON writer
2015-02-05 17:16:14 +01:00
Makefile.target
Makefile.target: binary depends on config-devices
2015-03-01 19:41:50 +01:00
memory_mapping.c
…
memory.c
memory: Move owner-less MemoryRegions to /machine/unattached
2015-03-17 14:31:26 +01:00
module-common.c
…
monitor.c
Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-20150320-1' into staging
2015-03-20 09:50:08 +00:00
nbd.c
nbd/trivial: fix type cast for ioctl
2015-07-28 18:14:07 -05:00
numa.c
numa: Print warning if no node is assigned to a CPU
2015-03-19 16:20:15 -03:00
os-posix.c
rcu: do not create thread in pthread_atfork callback
2015-04-01 10:06:38 +02:00
os-win32.c
…
page_cache.c
xbzrle: rebuild the cache_is_cached function
2015-01-15 17:49:43 +05:30
qapi-schema.json
kbd: add brazil kbd keys to qemu
2015-07-29 18:25:03 -05:00
qdev-monitor.c
qom: Implement info qom-tree HMP command
2015-03-17 14:31:21 +01:00
qdict-test-data.txt
…
qemu-bridge-helper.c
…
qemu-char.c
qemu-img: Suppress unhelpful extra errors in convert, amend
2015-02-26 14:51:21 +01:00
qemu-coroutine-io.c
coroutine-io: Return -errno in case of error
2015-03-18 12:07:21 +01:00
qemu-coroutine-lock.c
…
qemu-coroutine-sleep.c
…
qemu-coroutine.c
coroutine: Clean up qemu_coroutine_enter()
2015-03-09 11:11:59 +01:00
qemu-doc.texi
raw-posix: Deprecate host floppy passthrough
2015-03-19 11:43:02 +01:00
qemu-img-cmds.hx
…
qemu-img.c
qemu-img: Avoid qerror_report_err() outside QMP handlers, again
2015-03-16 17:07:25 +01:00
qemu-img.texi
…
qemu-io-cmds.c
qemu-io: Use BlockBackend
2015-02-16 15:07:19 +00:00
qemu-io.c
Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2015-02-18' into staging
2015-02-26 07:01:08 +00:00
qemu-log.c
qemu-log: Correct help text of 'log cpu_reset'
2015-02-10 09:27:20 +03:00
qemu-nbd.c
nbd: Set block size to BDRV_SECTOR_SIZE
2015-03-18 12:07:01 +01:00
qemu-nbd.texi
…
qemu-options-wrapper.h
…
qemu-options.h
…
qemu-options.hx
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
2015-03-19 17:47:08 +00:00
qemu-seccomp.c
seccomp: add mlockall to whitelist
2015-01-23 14:07:08 +01:00
qemu-tech.texi
…
qemu-timer.c
qemu-timer.c: Trim list of included headers
2015-01-26 18:15:54 +00:00
qemu.nsi
…
qemu.sasl
…
qjson.c
QJSON: fix typo in author's email address
2015-02-10 09:27:20 +03:00
qmp-commands.hx
qmp: Add optional bool "unmap" to drive-mirror
2015-07-29 21:43:36 -05:00
qmp.c
qom: Add can_be_deleted callback to UserCreatableClass
2015-04-01 10:06:38 +02:00
qtest.c
qtest: Use qemu_opt_set() instead of qemu_opts_parse()
2015-02-26 14:52:13 +01:00
README
…
rules.mak
rules.mak: Fix module build
2015-01-14 10:38:57 +01:00
savevm.c
error: Replace error_report() & error_free() with error_report_err()
2015-03-19 11:11:55 +03:00
softmmu_template.h
exec: make iotlb RCU-friendly
2015-02-16 17:30:19 +01:00
spice-qemu-char.c
spice: Add missing 'static' attribute
2015-02-10 10:26:05 +03:00
tcg-runtime.c
…
tci.c
tcg: Remove unused opcodes
2015-02-12 21:21:38 -08:00
thread-pool.c
…
thunk.c
…
tpm.c
tpm: Remove superfluous '\n' around error_report()
2015-03-10 08:15:33 +03:00
trace-events
s390x/kvm: trace all SIGP orders
2015-03-10 09:26:22 +01:00
translate-all.c
target-i386: remove superfluous TARGET_HAS_SMC macro
2015-04-04 09:45:59 +03:00
translate-all.h
…
user-exec.c
user-exec.c: fix build on NetBSD/sparc64 and NetBSD/arm
2015-03-13 15:57:00 +00:00
VERSION
Update version for v2.3.0 release
2015-04-24 15:05:06 +01:00
version.rc
…
vl.c
Avoid crashing on multiple -incoming
2015-03-26 15:31:46 +01:00
xen-common-stub.c
…
xen-common.c
…
xen-hvm-stub.c
xen: Remove xen_cmos_set_s3_resume()
2015-03-10 08:15:33 +03:00
xen-hvm.c
Xen: Use the ioreq-server API when available
2015-01-20 14:24:10 +00:00
xen-mapcache.c
xen: add a lock for the mapcache
2015-01-20 14:24:17 +00:00

README 

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

- QEMU team
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Description
A QEMU emulator for legacy Apple devices
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