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Peter Lieven 095e4fa4b5 block: limited request size in write zeroes unsupported path 
If bs->bl.max_write_zeroes is large and we end up in the unsupported
path we might allocate a lot of memory for the iovector and/or even
generate an oversized requests.

Fix this by limiting the request by the minimum of the reported
maximum transfer size or 16MB (32768 sectors).

Reported-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Message-id: 1420457389-16332-1-git-send-email-pl@kamp.de
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-01-13 13:43:29 +00:00
audio
audio: Don't free hw resources until after hw backend is stopped
2014-12-22 23:12:25 +00:00
backends
Drop superfluous conditionals around g_strdup()
2014-12-10 11:30:55 +03:00
block
coroutine: drop qemu_coroutine_adjust_pool_size
2015-01-13 13:43:29 +00:00
bsd-user
bsd-user: Fix syscall format, add strace support for more syscalls
2014-06-11 00:25:06 +01:00
default-configs
s390: Add PCI bus support
2015-01-12 10:14:04 +01:00
disas
disas/mips: disable unused mips16_to_32_reg_map[]
2014-12-16 12:45:20 +00:00
docs
pci: move REDHAT_SDHCI device ID to make room for Rocker
2015-01-03 09:22:13 +01:00
dtc @ bc895d6d09
…
fpu
softfloat: add functions corresponding to IEEE-2008 min/maxNumMag
2014-10-14 13:28:51 +01:00
fsdev
virtfs-proxy-helper: fix call to accept
2014-04-28 08:55:32 +04:00
gdb-xml
s390x/gdb: add the feature xml files for s390x
2014-09-01 09:45:19 +02:00
hw
Merge remote-tracking branch 'remotes/stefanha/tags/net-pull-request' into staging
2015-01-12 11:13:24 +00:00
include
coroutine: drop qemu_coroutine_adjust_pool_size
2015-01-13 13:43:29 +00:00
libcacard
libcacard: fix resource leak
2014-11-14 12:15:40 +01:00
libdecnumber
libdecnumber: Fix warnings from smatch (missing static, boolean operations)
2014-08-24 13:21:06 +04:00
linux-headers
linux-headers: update to 3.18-rc5
2014-11-18 11:24:31 +00:00
linux-user
linux-user: Use the 5KEf processor for 64-bit emulation
2014-12-16 12:45:20 +00:00
migration
migration/block: fix pending() return value
2015-01-13 11:47:56 +00:00
net
net: Use g_new() & friends where that makes obvious sense
2014-12-19 13:17:02 +00:00
pc-bios
pseries: Update SLOF firmware image to 20141202
2015-01-07 16:16:27 +01:00
pixman @ 87eea99e44
pixman: update internal copy to pixman-0.32.6
2014-09-15 08:14:19 +02:00
po
po: fix conflict with %.mo rule in rules.mak
2014-09-26 13:35:08 +02:00
qapi
qmp: Add command 'blockdev-backup'
2015-01-13 11:47:56 +00:00
qga
qga: fix false negative argument passing
2014-11-17 11:41:25 +01:00
qobject
qjson: Drop trailing space for pretty formatting
2014-12-10 10:25:30 +01:00
qom
cpu: initialize cpu->exception_index on reset
2014-12-20 20:38:07 +00:00
roms
pseries: Update SLOF firmware image to 20141202
2015-01-07 16:16:27 +01:00
scripts
checkpatch: Brace handling on multi-line condition
2015-01-13 11:47:56 +00:00
slirp
slirp: udp: fix NULL pointer dereference because of uninitialized socket
2014-09-23 19:15:05 +01:00
stubs
block: Code motion to get rid of stubs/blockdev.c
2014-10-20 13:41:26 +02:00
sysconfigs/target
…
target-alpha
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-arm
kvm: extend kvm_irqchip_add_msi_route to work on s390
2015-01-12 10:14:04 +01:00
target-cris
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-i386
kvm: extend kvm_irqchip_add_msi_route to work on s390
2015-01-12 10:14:04 +01:00
target-lm32
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-m68k
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-microblaze
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-mips
kvm: extend kvm_irqchip_add_msi_route to work on s390
2015-01-12 10:14:04 +01:00
target-moxie
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-openrisc
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-ppc
kvm: extend kvm_irqchip_add_msi_route to work on s390
2015-01-12 10:14:04 +01:00
target-s390x
kvm: extend kvm_irqchip_add_msi_route to work on s390
2015-01-12 10:14:04 +01:00
target-sh4
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-sparc
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-tricore
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
2015-01-09 16:29:36 +00:00
target-unicore32
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-xtensa
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
tcg
tcg: add separate monitor command to dump opcode counters
2014-12-17 05:49:32 +03:00
tests
test-coroutine: avoid overflow on 32-bit systems
2015-01-13 13:43:29 +00:00
trace
trace: [hmp] Reimplement "trace-event" and "info trace-events" using QMP
2014-09-26 09:34:38 +01:00
ui
Merge remote-tracking branch 'remotes/kraxel/tags/pull-sdl-20141219-1' into staging
2014-12-21 23:17:00 +00:00
util
qemu-thread: add per-thread atexit functions
2015-01-13 13:43:29 +00:00
.exrc
…
.gitignore
.gitignore: Ignore generated "common.env"
2015-01-13 13:43:28 +00:00
.gitmodules
PPC: Add u-boot firmware for e500
2014-06-16 13:24:35 +02:00
.mailmap
…
.travis.yml
.travis.yml: remove "make check" from main matrix
2014-09-26 21:05:06 +04:00
accel.c
accel: Create accel object when initializing machine
2014-10-09 15:36:14 +02:00
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
arch_init: support resizing on incoming migration
2015-01-08 13:17:54 +02:00
async.c
block: replace g_new0 with g_new for bottom half allocation.
2015-01-13 11:47:56 +00:00
balloon.c
qapi event: convert BALLOON_CHANGE
2014-06-23 11:12:28 -04:00
block.c
block: limited request size in write zeroes unsupported path
2015-01-13 13:43:29 +00:00
blockdev-nbd.c
nbd: Change external interface to BlockBackend
2014-12-10 10:31:12 +01:00
blockdev.c
block: Add blockdev-backup to transaction
2015-01-13 11:47:56 +00:00
blockjob.c
block: declare blockjobs and dataplane friends!
2014-11-03 11:41:49 +00:00
bootdevice.c
bootdevice: add Error **errp argument for QEMUBootSetHandler
2014-12-22 14:39:21 +08:00
bt-host.c
…
bt-vhci.c
…
Changelog
…
CODING_STYLE
CODING_STYLE: Section about conditional statement
2014-08-15 18:54:06 +04:00
configure
seccomp: typo in configure error message
2015-01-05 18:08:27 +01:00
COPYING
…
COPYING.LIB
…
coroutine-gthread.c
glib-compat.h: add new thread API emulation on top of pre-2.31 API
2014-06-10 07:44:01 +02:00
coroutine-sigaltstack.c
coroutine-sigaltstack: Change jmp_buf to sigjmp_buf
2014-11-11 11:07:55 +03:00
coroutine-ucontext.c
coroutine-ucontext: use __thread
2015-01-13 13:43:28 +00:00
coroutine-win32.c
coroutine-win32.c: Add noinline attribute to work around gcc bug
2014-06-26 14:08:14 +01:00
cpu-exec.c
cpu-exec: invalidate nocache translation if they are interrupted
2014-12-15 12:21:02 +01:00
cpus.c
cpu: initialize cpu->exception_index on reset
2014-12-20 20:38:07 +00:00
cputlb.c
qemu-log: add log category for MMU info
2014-12-16 18:43:19 +00:00
device_tree.c
device-tree: fix memory leak
2015-01-07 16:16:26 +01:00
device-hotplug.c
blockdev: Eliminate drive_del()
2014-10-20 13:41:26 +02:00
disas.c
monitor: QEMU Monitor Instruction Disassembly Incorrect for PowerPC LE Mode
2014-06-16 13:24:26 +02:00
dma-helpers.c
hw: Convert from BlockDriverState to BlockBackend, mostly
2014-10-20 14:02:25 +02:00
dump.c
dump: Fix dump-guest-memory termination and use-after-close
2014-11-02 10:04:34 +03:00
exec.c
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
2015-01-10 21:02:23 +00:00
gdbstub.c
Add the "-semihosting-config" option.
2014-12-11 12:07:48 +00:00
HACKING
…
hmp-commands.hx
hmp: Remove "info pcmcia"
2014-10-24 12:19:11 +01:00
hmp.c
block/hmp: Allow node-name in 'info block'
2014-12-10 10:31:11 +01:00
hmp.h
Add HMP command "info memory-devices"
2014-09-26 13:37:06 -04:00
iohandler.c
iohandler.c: Properly initialize sigaction struct
2014-05-24 00:07:29 +04:00
ioport.c
memory: convert memory_region_destroy to object_unparent
2014-08-18 12:06:20 +02:00
iothread.c
async: aio_context_new(): Handle event_notifier_init failure
2014-09-22 11:39:48 +01:00
kvm-all.c
kvm: extend kvm_irqchip_add_msi_route to work on s390
2015-01-12 10:14:04 +01:00
kvm-stub.c
pc: kvm: check if KVM has free memory slots to avoid abort()
2014-11-23 12:11:29 +02:00
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
Revert "main-loop.c: Handle SIGINT, SIGHUP and SIGTERM synchronously"
2014-10-27 15:05:09 +00:00
MAINTAINERS
s390: Add PCI bus support
2015-01-12 10:14:04 +01:00
Makefile
trace: install trace-events file
2014-09-26 09:34:39 +01:00
Makefile.objs
Start migrating migration code into a migration directory
2014-12-16 17:47:36 +05:30
Makefile.target
bootdevice: move bootdevice related code to new file bootdevice.c
2014-10-15 09:49:48 +02:00
memory_mapping.c
Add skip_dump flag to ignore memory region during dump
2014-10-31 11:29:01 +01:00
memory.c
memory: API to allocate resizeable RAM MR
2015-01-08 13:17:55 +02:00
module-common.c
module: implement module loading
2014-02-20 13:14:18 +01:00
monitor.c
bootdevice: add Error **errp argument for qemu_boot_set()
2014-12-22 14:39:20 +08:00
nbd.c
nbd: Use BlockBackend internally
2014-12-10 10:31:12 +01:00
numa.c
numa: make 'info numa' take into account hotplugged memory
2014-11-11 08:50:58 +03:00
os-posix.c
os-posix: reorder parent notification for -daemonize
2014-11-02 10:04:34 +03:00
os-win32.c
pidfile: stop making pidfile error a special case
2014-11-02 10:04:34 +03:00
page_cache.c
migration: Plug memory leak in migrate-set-cache-size command
2014-06-10 19:54:43 +04:00
qapi-schema.json
block: Add blockdev-backup to transaction
2015-01-13 11:47:56 +00:00
qdev-monitor.c
qdev: Use qdev_get_device_class() for -device <type>,help
2014-11-04 17:50:00 +01:00
qdict-test-data.txt
…
qemu-bridge-helper.c
qemu-bridge-helper: Fix fd leak in main()
2014-06-27 10:39:10 +02:00
qemu-char.c
Drop superfluous conditionals around qemu_opts_del()
2014-12-10 11:27:02 +03:00
qemu-coroutine-io.c
qemu-coroutine-io: fix for Win32
2014-08-29 10:46:58 +01:00
qemu-coroutine-lock.c
…
qemu-coroutine-sleep.c
coroutine: Drop co_sleep_ns
2014-08-29 10:46:58 +01:00
qemu-coroutine.c
coroutine: try harder not to delete coroutines
2015-01-13 13:43:29 +00:00
qemu-doc.texi
block: vhdx - change .vhdx_create default block state to ZERO
2014-12-12 15:42:49 +00:00
qemu-img-cmds.hx
qemu-img: Add progress output for amend
2014-11-03 11:41:48 +00:00
qemu-img.c
qemu-img: Check create_opts before image amendment
2014-12-10 10:31:20 +01:00
qemu-img.texi
qemu-img: Add progress output for amend
2014-11-03 11:41:48 +00:00
qemu-io-cmds.c
qemu-io: Add sigraise command
2014-12-12 15:48:26 +00:00
qemu-io.c
qemu-io: Allow explicitly specifying format
2014-12-10 10:31:12 +01:00
qemu-log.c
qemu-log: add log category for MMU info
2014-12-16 18:43:19 +00:00
qemu-nbd.c
qemu-nbd: Use BlockBackend where reasonable
2014-12-10 10:31:12 +01:00
qemu-nbd.texi
nbd: Miscellaneous typo fixes.
2014-05-24 00:07:29 +04:00
qemu-options-wrapper.h
…
qemu-options.h
…
qemu-options.hx
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20141211' into staging
2014-12-11 16:47:23 +00:00
qemu-seccomp.c
seccomp: add mbind() to the syscall whitelist
2015-01-05 18:13:38 +01:00
qemu-tech.texi
…
qemu-timer.c
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
2014-12-15 16:43:42 +00:00
qemu.nsi
…
qemu.sasl
sasl: Avoid 'Could not find keytab file' in syslog
2014-03-15 13:54:18 +04:00
qmp-commands.hx
qmp: Add command 'blockdev-backup'
2015-01-13 11:47:56 +00:00
qmp.c
qmp: Print descriptions of object properties
2014-10-15 05:03:15 +02:00
qtest.c
qtest: fix qtest log fd should be initialized before qtest chardev
2014-10-23 16:41:27 +02:00
README
…
rules.mak
rules.mak: Allow .mo-objs and .mo-cflags in -y variables
2014-10-31 11:26:25 +01:00
savevm.c
snapshot: Reset err to NULL to avoid double free
2014-11-03 09:48:41 +00:00
softmmu_template.h
softmmu: provide softmmu access type enum
2014-11-03 11:48:34 +00:00
spice-qemu-char.c
spice: remove spice-experimental.h include
2014-12-16 14:15:29 +01:00
tcg-runtime.c
tcg: Push tcg-runtime routines into exec/helper-*
2014-05-28 09:33:54 -07:00
tci.c
Merge remote-tracking branch 'remotes/bonzini/softmmu-smap' into staging
2014-06-05 21:06:14 +01:00
thread-pool.c
block: Rename BlockDriverCompletionFunc to BlockCompletionFunc
2014-10-20 13:41:27 +02:00
thunk.c
…
tpm.c
Use error_is_set() only when necessary
2014-02-17 11:57:23 -05:00
trace-events
hw/vfio: create common module
2014-12-22 09:54:51 -07:00
translate-all.c
translate: check cflags instead of use_icount global
2015-01-03 09:22:10 +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
softmmu: introduce cpu_ldst.h
2014-06-05 16:10:33 +02:00
VERSION
Open 2.3 development tree
2014-12-09 21:48:34 +00:00
version.rc
…
vl.c
hw/usb: simplified usb_enabled
2015-01-08 17:32:27 +00:00
xen-common-stub.c
accel: Move Xen registration code to xen-common.c
2014-10-04 08:59:15 +02:00
xen-common.c
accel: Pass MachineState object to accel init functions
2014-10-09 12:57:10 +02:00
xen-hvm-stub.c
xen-hvm: Fix xen_hvm_init() to adjust pc memory layout
2014-06-23 17:50:04 +03:00
xen-hvm.c
xen-hvm: Remove redundant variable 'xstate'
2014-11-11 17:34:53 +03:00
xen-mapcache.c
xen: build on ARM
2014-07-07 10:37:40 +00:00

README 

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

- QEMU team
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Original Xbox Emulator for Windows, macOS, and Linux (Active Development)
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