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Paolo Bonzini 262db38871 qemu-nbd: asynchronous operation 
Using coroutines enable asynchronous operation on both the network and
the block side.  Network can be owned by two coroutines at the same time,
one writing and one reading.  On the send side, mutual exclusion is
guaranteed by a CoMutex.  On the receive side, mutual exclusion is
guaranteed because new coroutines immediately start receiving data,
and no new coroutines are created as long as the previous one is receiving.

Between receive and send, qemu-nbd can have an arbitrary number of
in-flight block transfers.  Throttling is implemented by the next
patch.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-12-22 11:53:59 +01:00
audio
Fix spelling in comments, documentation and messages
2011-12-14 11:09:44 +00:00
block
move corking functions to osdep.c
2011-12-22 11:53:58 +01:00
bsd-user
Merge remote-tracking branch 'stefanha/trivial-patches-next' into staging
2011-12-14 07:59:21 -06:00
darwin-user
fix spelling in darwin-user sub directory
2011-12-02 10:50:56 +00:00
default-configs
xtensa_lx60: add FLASH support
2011-11-02 05:05:52 +04:00
docs
Merge remote-tracking branch 'qemu-kvm/memory/mutators' into staging
2011-12-19 09:12:25 -06:00
fpu
…
fsdev
hw/9pfs: Use the correct file descriptor in Fsdriver Callback
2011-12-04 22:35:28 +05:30
gdb-xml
…
hw
sd: Remember to reset .expecting_acmd on reset.
2011-12-21 05:04:21 +01:00
libcacard
fix spelling in libcacard sub directory
2011-12-02 10:50:56 +00:00
linux-headers
…
linux-user
Fix spelling in comments, documentation and messages
2011-12-14 11:09:44 +00:00
net
net: store guest timestamp in dump file instead of time since guest startup
2011-12-20 15:44:30 -06:00
pc-bios
Fix spelling in comments, documentation and messages
2011-12-14 11:09:44 +00:00
qapi
qapi: protect against NULL QObject in qmp_input_get_object
2011-12-19 10:27:33 -06:00
qga
guest agent: add supported command list to guest-info RPC
2011-12-12 17:06:21 -06:00
QMP
qmp: add test tool for QMP
2011-12-06 11:40:00 -02:00
roms
add sgabios blob and submodule
2011-11-07 10:57:36 -06:00
scripts
vl.c: In qemu -h output, only print options for the arch we are running as
2011-12-19 10:27:33 -06:00
slirp
main-loop: create main-loop.c
2011-10-21 18:14:30 +02:00
sysconfigs/target
…
target-alpha
fix spelling in target sub directory
2011-12-02 10:50:57 +00:00
target-arm
target-arm: Infer VFPv3 feature from VFPv4
2011-12-13 18:19:25 +00:00
target-cris
cris: Handle conditional stores on CRISv10
2011-12-12 11:38:31 +01:00
target-i386
target-i386: fix cmpxchg instruction emulation
2011-12-12 00:46:32 +04:00
target-lm32
…
target-m68k
…
target-microblaze
fix spelling in target sub directory
2011-12-02 10:50:57 +00:00
target-mips
Fix spelling in comments, documentation and messages
2011-12-14 11:09:44 +00:00
target-ppc
fix spelling in target sub directory
2011-12-02 10:50:57 +00:00
target-s390x
Fix spelling in comments, documentation and messages
2011-12-14 11:09:44 +00:00
target-sh4
Merge remote-tracking branch 'stefanha/trivial-patches' into staging
2011-12-05 08:44:33 -06:00
target-sparc
fix spelling in target sub directory
2011-12-02 10:50:57 +00:00
target-unicore32
…
target-xtensa
target-xtensa: fix MMUv3 initialization
2011-11-26 09:44:34 +00:00
tcg
tcg/arm: remove fixed map code buffer restriction
2011-12-14 21:58:18 +01:00
tests
tests/qruncom.c: Remove libqemu.a example
2011-12-09 10:10:03 +00:00
trace
g_thread_init users: don't call it if glib >= 2.31
2011-12-20 15:44:31 -06:00
ui
Merge remote-tracking branch 'stefanha/trivial-patches-next' into staging
2011-12-14 07:59:21 -06:00
.gitignore
Add qapi related generated files to .gitignore
2011-11-01 11:50:12 -05:00
.gitmodules
add sgabios blob and submodule
2011-11-07 10:57:36 -06:00
.mailmap
Add a .mailmap to map pre-git-conversion authors to friendly names
2011-12-12 17:06:21 -06:00
a.out.h
…
acl.c
acl: Fix use after free in qemu_acl_reset()
2011-11-01 06:23:48 +00:00
acl.h
…
aes.c
…
aes.h
…
aio.c
…
alpha-dis.c
…
alpha.ld
…
arch_init.c
audio: remove unused parameter isa_pic
2011-12-20 15:44:31 -06:00
arch_init.h
audio: remove unused parameter isa_pic
2011-12-20 15:44:31 -06:00
arm-dis.c
fix spelling in main directory
2011-12-02 10:50:57 +00:00
arm-semi.c
…
arm.ld
…
async.c
main-loop: create main-loop.h
2011-10-21 18:14:30 +02:00
balloon.c
qapi: Convert balloon
2011-12-06 11:40:01 -02:00
balloon.h
qapi: Convert balloon
2011-12-06 11:40:01 -02:00
bitmap.c
…
bitmap.h
…
bitops.c
…
bitops.h
…
block_int.h
block: add interface to toggle copy-on-read
2011-12-05 14:51:38 +01:00
block-migration.c
block: bdrv_aio_* do not return NULL
2011-12-15 12:40:07 +01:00
block-migration.h
…
block.c
block: avoid useless checks on acb->bh
2011-12-15 12:40:08 +01:00
block.h
qcow2: Allow >4 GB VM state
2011-12-15 12:40:33 +01:00
blockdev.c
qapi: Convert blockdev_snapshot_sync
2011-12-06 11:40:01 -02:00
blockdev.h
qapi: Convert blockdev_snapshot_sync
2011-12-06 11:40:01 -02:00
bswap.h
…
bt-host.c
…
bt-host.h
…
bt-vhci.c
…
buffered_file.c
…
buffered_file.h
…
cache-utils.c
…
cache-utils.h
…
Changelog
Fix spelling in comments, documentation and messages
2011-12-14 11:09:44 +00:00
check-qdict.c
…
check-qfloat.c
…
check-qint.c
…
check-qjson.c
…
check-qlist.c
…
check-qstring.c
…
cmd.c
cmd: Fix potential memory leak
2011-11-07 08:01:15 +00:00
cmd.h
…
CODING_STYLE
…
compatfd.c
compatfd.c: Don't pass NULL pointer to SYS_signalfd
2011-10-21 18:01:35 +02:00
compatfd.h
…
compiler.h
…
config.h
…
configure
configure: Improve Xen autodetection for hosts without Xen
2011-12-19 11:03:43 +00:00
console.c
console: Fix qemu_default_pixelformat() for 24 bpp
2011-12-06 09:56:40 +00:00
console.h
console: Drop unused prototypes
2011-12-06 11:40:00 -02:00
COPYING
…
COPYING.LIB
…
coroutine-gthread.c
g_thread_init users: don't call it if glib >= 2.31
2011-12-20 15:44:31 -06:00
coroutine-ucontext.c
coroutine: switch per-thread free pool to a global pool
2011-12-15 12:40:33 +01:00
coroutine-win32.c
…
cpu-all.h
Rename get_tls to tls_var
2011-12-06 10:07:04 +00:00
cpu-common.h
memory: move obsolete exec.c functions to a private header
2011-12-19 17:28:54 +02:00
cpu-defs.h
fix win32 build
2011-12-15 09:20:50 -06:00
cpu-exec.c
…
cpus.c
fix win32 build
2011-12-15 09:20:50 -06:00
cpus.h
Simplify cpu_exec_all to tcg_exec_all
2011-11-01 10:58:08 -05:00
cris-dis.c
…
cursor_hidden.xpm
…
cursor_left_ptr.xpm
…
cursor.c
…
cutils.c
sheepdog: move coroutine send/recv function to generic code
2011-12-22 11:53:53 +01:00
def-helper.h
…
device_tree.c
device_tree: Fix potential memory leak
2011-10-26 13:36:34 +01:00
device_tree.h
…
dis-asm.h
tcg: Add tci disassembler
2011-10-31 21:52:17 +01:00
disas.c
tcg: Add tci disassembler
2011-10-31 21:52:17 +01:00
disas.h
…
dma-helpers.c
dma: the passed io_func does not return NULL
2011-12-15 12:40:08 +01:00
dma.h
Use dma_addr_t type for scatter/gather code
2011-11-01 16:52:05 -05:00
dyngen-exec.h
tcg: Add bytecode generator for tcg interpreter
2011-10-31 21:52:16 +01:00
elf.h
…
envlist.c
…
envlist.h
…
error_int.h
…
error.c
Drop qemu-objects.h from modules that don't require it
2011-10-27 11:48:47 -02:00
error.h
…
event_notifier.c
event_notifier: move to top-level directory
2011-11-01 16:52:08 -05:00
event_notifier.h
event_notifier: move to top-level directory
2011-11-01 16:52:08 -05:00
exec-all.h
tcg: Add bytecode generator for tcg interpreter
2011-10-31 21:52:16 +01:00
exec-memory.h
fix spelling in main directory
2011-12-02 10:50:57 +00:00
exec-obsolete.h
memory: move obsolete exec.c functions to a private header
2011-12-19 17:28:54 +02:00
exec.c
memory: move obsolete exec.c functions to a private header
2011-12-19 17:28:54 +02:00
gdbstub.c
Fix spelling in comments, documentation and messages
2011-12-14 11:09:44 +00:00
gdbstub.h
…
gen-icount.h
…
HACKING
HACKING: clarify allocation/free recommendations
2011-12-15 09:27:23 -06:00
hmp-commands.hx
Merge remote-tracking branch 'stefanha/trivial-patches-next' into staging
2011-12-14 07:59:21 -06:00
hmp.c
qapi: Convert migrate_set_speed
2011-12-06 11:40:01 -02:00
hmp.h
qapi: Convert migrate_set_speed
2011-12-06 11:40:01 -02:00
host-utils.c
…
host-utils.h
…
hppa-dis.c
fix spelling in main directory
2011-12-02 10:50:57 +00:00
hppa.ld
…
i386-dis.c
…
i386.ld
…
ia64-dis.c
ia64-dis.c: Undefine ABS to avoid clash with glib
2011-11-01 11:50:12 -05:00
ia64.ld
…
input.c
qapi: Convert query-mice
2011-10-27 11:48:46 -02:00
int128.h
…
iohandler.c
Revert to a hand-made select loop
2011-10-21 18:14:30 +02:00
ioport-user.c
…
ioport.c
…
ioport.h
…
iorange.h
…
iov.c
…
iov.h
…
json-lexer.c
…
json-lexer.h
…
json-parser.c
…
json-parser.h
…
json-streamer.c
…
json-streamer.h
…
kvm-all.c
kvm: Print something before calling abort() if KVM_RUN fails
2011-12-16 10:45:17 +00:00
kvm-stub.c
…
kvm.h
…
libfdt_env.h
…
LICENSE
LICENSE: There is no libqemu.a anymore
2011-12-09 11:25:22 +00:00
linux-aio.c
block: qemu_aio_get does not return NULL
2011-12-15 12:40:08 +01:00
m68k-dis.c
fix spelling in main directory
2011-12-02 10:50:57 +00:00
m68k-semi.c
…
m68k.ld
…
main-loop.c
main-loop: Add missing include file
2011-10-25 15:38:08 -05:00
main-loop.h
link the main loop and its dependencies into the tools
2011-12-22 11:53:58 +01:00
MAINTAINERS
MAINTAINERS: Delete spurious '.'
2011-12-02 10:50:56 +00:00
Makefile
link the main loop and its dependencies into the tools
2011-12-22 11:53:58 +01:00
Makefile.dis
…
Makefile.hw
…
Makefile.objs
sheepdog: move coroutine send/recv function to generic code
2011-12-22 11:53:53 +01:00
Makefile.target
Makefile.target: Remove unnecessary dependency rules
2011-12-16 10:03:23 +00:00
Makefile.user
…
memory.c
Merge remote-tracking branch 'qemu-kvm/memory/exec-obsolete' into staging
2011-12-19 09:45:17 -06:00
memory.h
Merge remote-tracking branch 'qemu-kvm/memory/mutators' into staging
2011-12-19 09:12:25 -06:00
microblaze-dis.c
…
migration-exec.c
exec_close(): return -errno on errors (v2)
2011-12-12 11:47:20 -06:00
migration-fd.c
migration: flush migration data to disk.
2011-11-01 11:50:21 -05:00
migration-tcp.c
tcp_close(): check for close() errors too (v2)
2011-12-12 11:47:20 -06:00
migration-unix.c
unix_close(): check for close() errors too (v2)
2011-12-12 11:47:20 -06:00
migration.c
migrate_fd_cleanup: accept any negative qemu_fclose() value as error
2011-12-12 11:47:19 -06:00
migration.h
Merge remote-tracking branch 'stefanha/trivial-patches-next' into staging
2011-12-14 07:59:21 -06:00
mips-dis.c
…
mips.ld
…
module.c
…
module.h
…
monitor.c
qapi: Convert human-monitor-command
2011-12-06 11:40:01 -02:00
monitor.h
qom: qom_{get, set} monitor commands (v2)
2011-12-15 09:20:48 -06:00
nbd.c
qemu-nbd: asynchronous operation
2011-12-22 11:53:59 +01:00
nbd.h
qemu-nbd: move client handling to nbd.c
2011-12-22 11:53:59 +01:00
net.c
qapi: Convert set_link
2011-12-06 11:40:01 -02:00
net.h
qapi: Convert set_link
2011-12-06 11:40:01 -02:00
notify.c
…
notify.h
…
os-posix.c
link the main loop and its dependencies into the tools
2011-12-22 11:53:58 +01:00
os-win32.c
link the main loop and its dependencies into the tools
2011-12-22 11:53:58 +01:00
osdep.c
move corking functions to osdep.c
2011-12-22 11:53:58 +01:00
osdep.h
…
oslib-posix.c
link the main loop and its dependencies into the tools
2011-12-22 11:53:58 +01:00
oslib-win32.c
link the main loop and its dependencies into the tools
2011-12-22 11:53:58 +01:00
path.c
…
pci-ids.txt
…
pflib.c
…
pflib.h
…
poison.h
…
posix-aio-compat.c
block: qemu_aio_get does not return NULL
2011-12-15 12:40:08 +01:00
ppc64.ld
…
ppc-dis.c
…
ppc.ld
…
qapi-schema-guest.json
Merge remote-tracking branch 'stefanha/trivial-patches-next' into staging
2011-12-14 07:59:21 -06:00
qapi-schema-test.json
Introduce test-qmp-output-visitor
2011-12-06 11:40:00 -02:00
qapi-schema.json
qom: qom_{get, set} monitor commands (v2)
2011-12-15 09:20:48 -06:00
qbool.c
…
qbool.h
…
qdict-test-data.txt
…
qdict.c
…
qdict.h
…
qemu_socket.h
move corking functions to osdep.c
2011-12-22 11:53:58 +01:00
qemu-aio.h
…
qemu-barrier.h
qemu-barrier: Fix build failure on PowerPC Mac OS X
2011-11-01 11:50:11 -05:00
qemu-char.c
qemu-char: rename qemu_chr_event to qemu_chr_be_event and make it public
2011-11-28 16:20:51 -06:00
qemu-char.h
qemu-char: rename qemu_chr_event to qemu_chr_be_event and make it public
2011-11-28 16:20:51 -06:00
qemu-common.h
sheepdog: move coroutine send/recv function to generic code
2011-12-22 11:53:53 +01:00
qemu-config.c
block: add -drive copy-on-read=on|off
2011-12-05 14:51:38 +01:00
qemu-config.h
…
qemu-coroutine-int.h
…
qemu-coroutine-io.c
sheepdog: move coroutine send/recv function to generic code
2011-12-22 11:53:53 +01:00
qemu-coroutine-lock.c
coroutine: add qemu_co_queue_restart_all()
2011-12-05 14:51:38 +01:00
qemu-coroutine.c
…
qemu-coroutine.h
coroutine: add qemu_co_queue_restart_all()
2011-12-05 14:51:38 +01:00
qemu-doc.texi
doc: Remove Symbian Virtual Platform
2011-12-14 11:14:21 +00:00
qemu-error.c
error: Add an accessor for progname
2011-12-15 09:27:22 -06:00
qemu-error.h
error: Add an accessor for progname
2011-12-15 09:27:22 -06:00
qemu-ga.c
guest agent: add RPC blacklist command-line option
2011-12-12 17:06:21 -06:00
qemu-img-cmds.hx
Documentation: Add qemu-img -t parameter in man page
2011-12-15 12:40:08 +01:00
qemu-img.c
qemu-img rebase: Fix for undersized backing files
2011-12-15 12:40:08 +01:00
qemu-img.texi
Documentation: Add qemu-img -t parameter in man page
2011-12-15 12:40:08 +01:00
qemu-io.c
block: bdrv_aio_* do not return NULL
2011-12-15 12:40:07 +01:00
qemu-lock.h
…
qemu-log.h
…
qemu-nbd.c
qemu-nbd: move client handling to nbd.c
2011-12-22 11:53:59 +01:00
qemu-nbd.texi
…
qemu-objects.h
…
qemu-option.c
fix spelling in main directory
2011-12-02 10:50:57 +00:00
qemu-option.h
qemu: Add opt_set_bool functionality
2011-10-31 12:34:16 +05:30
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
Documentation: Move balloon option out of i386 only section
2011-12-19 10:27:33 -06:00
qemu-os-posix.h
9pfs: improve portability to older systems
2011-11-28 11:36:27 -06:00
qemu-os-win32.h
main-loop: create main-loop.c
2011-10-21 18:14:30 +02:00
qemu-progress.c
…
qemu-queue.h
qemu-queue: Introduce QLIST_INSERT_HEAD_RCU and dummy RCU wrappers.
2011-10-31 12:34:18 +05:30
qemu-sockets.c
qemu-sockets: Plug fd leak on unix_connect_opts() error path
2011-11-11 12:49:52 -06:00
qemu-tech.texi
qemu-tech.texi: Remove libqemu related stuff from the document
2011-12-09 10:10:12 +00:00
qemu-thread-posix.c
qemu-thread: implement joinable threads for POSIX
2011-12-12 17:06:22 -06:00
qemu-thread-posix.h
…
qemu-thread-win32.c
fix win32 build
2011-12-15 09:20:50 -06:00
qemu-thread-win32.h
fix win32 build
2011-12-15 09:20:50 -06:00
qemu-thread.h
qemu-thread: add API for joinable threads
2011-12-12 17:06:22 -06:00
qemu-timer-common.c
…
qemu-timer.c
win32: remove broken timers
2011-11-09 12:06:20 -06:00
qemu-timer.h
main-loop: create main-loop.h
2011-10-21 18:14:30 +02:00
qemu-tls.h
Rename get_tls to tls_var
2011-12-06 10:07:04 +00:00
qemu-tool.c
link the main loop and its dependencies into the tools
2011-12-22 11:53:58 +01:00
qemu-x509.h
…
qemu-xattr.h
configure: fix detection for xattr.h on modern distributions
2011-11-09 12:06:20 -06:00
qemu.sasl
…
qerror.c
qom: introduce QERR_PROPERTY_VALUE_OUT_OF_RANGE
2011-12-19 10:27:34 -06:00
qerror.h
qom: introduce QERR_PROPERTY_VALUE_OUT_OF_RANGE
2011-12-19 10:27:34 -06:00
qfloat.c
…
qfloat.h
…
qint.c
…
qint.h
…
qjson.c
…
qjson.h
…
qlist.c
…
qlist.h
…
qmp-commands.hx
qom: qom_{get, set} monitor commands (v2)
2011-12-15 09:20:48 -06:00
qmp.c
qom: qom_{get, set} monitor commands (v2)
2011-12-15 09:20:48 -06:00
qobject.h
…
qstring.c
…
qstring.h
…
range.h
…
readline.c
readline: Fix buffer overrun on re-add to history
2011-11-07 08:03:49 +00:00
readline.h
…
README
Update README
2011-12-11 17:50:43 -06:00
rules.mak
…
s390-dis.c
…
s390.ld
…
savevm.c
qcow2: Allow >4 GB VM state
2011-12-15 12:40:33 +01:00
sh4-dis.c
…
softmmu_defs.h
…
softmmu_exec.h
…
softmmu_header.h
…
softmmu_template.h
…
softmmu-semi.h
…
sparc64.ld
…
sparc-dis.c
…
sparc.ld
…
spice-qemu-char.c
spice-qemu-char: Generate chardev open/close events
2011-11-28 16:20:51 -06:00
sysemu.h
pcie_aer: adjust do_pcie_aer_inejct_error -> do_pcie_aer_inject_error
2011-12-06 09:56:41 +00:00
targphys.h
…
tcg-runtime.c
…
tci-dis.c
tcg: Add tci disassembler
2011-10-31 21:52:17 +01:00
tci.c
tcg: Standardize on TCGReg as the enum for hard registers
2011-11-14 17:47:26 +01:00
test-coroutine.c
…
test-qmp-commands.c
…
test-qmp-input-visitor.c
Introduce test-qmp-input-visitor
2011-12-06 11:40:00 -02:00
test-qmp-output-visitor.c
Introduce test-qmp-output-visitor
2011-12-06 11:40:00 -02:00
thunk.c
…
thunk.h
…
TODO
…
trace-events
block: bdrv_aio_* do not return NULL
2011-12-15 12:40:07 +01:00
translate-all.c
…
uboot_image.h
…
usb-bsd.c
…
usb-linux.c
usb-host: add usb_host_do_reset function.
2011-11-23 17:17:17 +01:00
usb-redir.c
fix typo: delete redundant semicolon
2011-12-06 09:56:41 +00:00
usb-stub.c
…
user-exec.c
…
VERSION
Update version for 1.1 development branch
2011-12-05 08:39:02 -06:00
version.rc
…
vgafont.h
…
vl.c
g_thread_init users: don't call it if glib >= 2.31
2011-12-20 15:44:31 -06:00
x86_64.ld
…
xen-all.c
xen: convert to memory API
2011-12-19 17:23:26 +02:00
xen-mapcache.c
block: convert qemu_aio_flush() calls to bdrv_drain_all()
2011-12-05 14:56:06 +01:00
xen-mapcache.h
…
xen-stub.c
memory, xen: pass MemoryRegion to xen_ram_alloc()
2011-12-19 17:23:24 +02:00
xtensa-semi.c
…

README 

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

- QEMU team
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