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Osmocom QEMU branch with Smartcard Chip emulation
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aliguori 39b65c2e31 Introduce a buffered file wrapper for QEMUFile 
This patch introduces a buffered QEMUFile wrapper.  This allows QEMUFile's to be
rate limited.  It also makes it easier to implement a QEMUFile that is
asynchronous since the current QEMUFile API requires that all reads and writes
be synchronous.

The only real non-obvious part of the API is the "frozen" concept.  If the
backend returns EAGAIN, the QEMUFile is said to be "frozen".  This means no
additional output will be sent to the backend until the file is unfrozen.
qemu_file_put_notify can be used to unfreeze a frozen file.

A synchronous interface is also provided to wait for an unfreeze event.  This is
used during the final part of live migration when the VM is no longer running.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5475 c046a42c-6fe2-441c-8c8c-71466251a162
 		2008-10-13 03:10:22 +00:00
audio Prepare for changing audio_pcm_ops dynamically (partially revert r5422) 2008-10-06 18:08:30 +00:00
darwin-user Make target_sigaltstack_used static 2008-10-05 11:09:37 +00:00
fpu Suppress gcc 4.x -Wpointer-sign (included in -Wall) warnings 2008-09-20 08:07:15 +00:00
gdb-xml Add GDB XML register description support. 2008-10-11 17:55:29 +00:00
hw Fix some issues with QEMUFile 2008-10-13 03:07:56 +00:00
keymaps fixing keymap for Windows keys (Stefano Stabellini) 2008-09-22 19:45:36 +00:00
linux-user CRIS: linux-user signals dont need ERP compensation after break anymore. 2008-10-08 14:39:08 +00:00
pc-bios Update OpenBIOS images to SVN r237. 2008-09-18 19:41:28 +00:00
slirp Fix warning about variables used uninitialized 2008-10-01 19:39:40 +00:00
target-alpha target-alpha: update STATUS 2008-10-01 07:07:59 +00:00
target-arm Add GDB XML register description support. 2008-10-11 17:55:29 +00:00
target-cris CRIS: Initialize the arch version preg to v32. 2008-10-11 19:36:17 +00:00
target-i386 Fix crc32w decoding, fix a constant width in blendvpd. 2008-10-04 11:33:52 +00:00
target-m68k Add GDB XML register description support. 2008-10-11 17:55:29 +00:00
target-mips Show size for unassigned accesses (Robert Reif) 2008-10-06 18:46:28 +00:00
target-ppc ppc: fix crash in ppc system single step support 2008-10-01 22:01:37 +00:00
target-sh4 SH4: Implement MOVUA.L 2008-10-12 23:32:59 +00:00
target-sparc Add static (spotted by sparse) 2008-10-07 19:12:13 +00:00
tcg Add some missing static and const qualifiers, reg_names only used if NDEBUG set 2008-10-05 09:59:14 +00:00
tests Implement SSE4.1, SSE4.2 (x86). 2008-10-04 03:27:44 +00:00
.gitignore Add gitignore file 2008-09-09 17:15:28 +00:00
COPYING COPYING: update from FSF 2008-10-12 17:54:42 +00:00
COPYING.LIB update 2003-05-25 16:41:52 +00:00
Changelog Update 2008-06-08 01:55:07 +00:00
LICENSE use the TCG code generator 2008-02-01 10:50:11 +00:00
MAINTAINERS Update maintainers list. 2008-08-25 22:26:03 +00:00
Makefile Fix IO performance regression in sparc 2008-10-08 19:50:24 +00:00
Makefile.target Introduce a buffered file wrapper for QEMUFile 2008-10-13 03:10:22 +00:00
README update 2005-02-10 21:46:47 +00:00
TODO update 2008-05-13 18:26:52 +00:00
VERSION version change 2008-01-06 17:10:54 +00:00
a.out.h 64bit->win32 cross build fix. 2007-03-04 00:52:16 +00:00
aes.c Fix miscellaneous minor things, by Andre Przywara. 2007-12-17 03:15:52 +00:00
aes.h AES crypto support 2004-08-01 21:54:53 +00:00
aio.c Make sure to initialize fd_sets in aio.c 2008-10-12 21:19:57 +00:00
alpha-dis.c find -type f | xargs sed -i 's/[\t ]$//g' # on most files 2007-09-16 21:08:06 +00:00
alpha.ld alpha support 2003-04-29 20:53:42 +00:00
arm-dis.c Update ARM disassembler. 2007-11-10 17:38:00 +00:00
arm-semi.c Add missing return in arm-semi, by Laurent Desnogues. 2008-07-01 16:40:04 +00:00
arm.ld Link ARM prologue closer to code segment to avoid a build failure 2008-07-10 17:21:31 +00:00
block-bochs.c Split block API from vl.h. 2007-11-11 02:51:17 +00:00
block-cloop.c Split block API from vl.h. 2007-11-11 02:51:17 +00:00
block-cow.c Split block API from vl.h. 2007-11-11 02:51:17 +00:00
block-dmg.c Add qemu_realloc(), by Gerd Hoffmann. 2008-08-06 08:37:17 +00:00
block-nbd.c Remove unnecessary #includes from block-nbd.c 2008-08-19 19:10:38 +00:00
block-parallels.c Split block API from vl.h. 2007-11-11 02:51:17 +00:00
block-qcow.c Remove dead-code (else-block) from block-qcow.c, by Marc Bevand. 2008-06-05 22:00:45 +00:00
block-qcow2.c fix bug in block-qcow2.c:alloc_cluster_offset() (Shahar Frank) 2008-09-24 16:52:15 +00:00
block-raw-posix.c Fix IO performance regression in sparc 2008-10-08 19:50:24 +00:00
block-raw-win32.c Refactor AIO to allow multiple AIO implementations 2008-09-22 19:17:18 +00:00
block-vmdk.c Fix warning, based on patches by Zeev Tarantov and Jindrich Makovicka 2008-09-28 20:00:14 +00:00
block-vpc.c Fix char* signedness, by Andre Przywara. 2007-12-16 03:16:05 +00:00
block-vvfat.c Fix OpenBSD linker warnings 2008-08-21 17:58:08 +00:00
block.c Add bdrv_flush_all() 2008-10-06 13:55:43 +00:00
block.h Add bdrv_flush_all() 2008-10-06 13:55:43 +00:00
block_int.h Fix warnings that would be caused by ld flag --warn-common 2008-09-17 19:04:14 +00:00
bswap.h e1000: fix unaligned access 2008-03-28 22:30:48 +00:00
bt-host.c Disable bluetooth proxy compilation on win32. 2008-09-30 23:31:35 +00:00
bt-vhci.c Disable bluetooth proxy compilation on win32. 2008-09-30 23:31:35 +00:00
buffered_file.c Introduce a buffered file wrapper for QEMUFile 2008-10-13 03:10:22 +00:00
buffered_file.h Introduce a buffered file wrapper for QEMUFile 2008-10-13 03:10:22 +00:00
check_ops.sh Fixes for s/390 host support, by Bastian Blank. 2007-11-18 21:22:10 +00:00
cocoa.m Let the USB tablet reach the far bottom and right pixels 2008-03-10 19:34:27 +00:00
configure Add GDB XML register description support. 2008-10-11 17:55:29 +00:00
console.c Reintroduce TEXT_CONSOLE_FIXED_SIZE and TEXT_CONSOLE for resizable vc's. 2008-09-24 03:32:33 +00:00
console.h Allow the monitor to be suspended during non-blocking op 2008-10-06 13:52:44 +00:00
cpu-all.h Add dirty tracking for live migration 2008-10-06 14:02:03 +00:00
cpu-defs.h Add GDB XML register description support. 2008-10-11 17:55:29 +00:00
cpu-exec.c CRIS: Fix brk 8 and add S-flag emulation. 2008-10-07 22:48:41 +00:00
cris-dis.c Teach the CRIS disassembler to stay within the provided buffer. 2008-05-06 08:45:10 +00:00
curses.c Reintroduce TEXT_CONSOLE_FIXED_SIZE and TEXT_CONSOLE for resizable vc's. 2008-09-24 03:32:33 +00:00
curses_keys.h Make keysym tables const 2008-10-02 18:26:42 +00:00
cutils.c Prevent guest reusing host memory allocations. 2008-06-09 13:47:45 +00:00
d3des.c Some little fixes on QEMU 2008-09-06 16:31:30 +00:00
d3des.h Actually add d3des implementation files. 2007-08-25 02:09:50 +00:00
dis-asm.h Fix OpenBSD linker warnings 2008-08-21 17:58:08 +00:00
disas.c Fix warnings that would be generated by gcc -Wstrict-prototypes 2008-08-17 20:21:51 +00:00
disas.h monitor_disas() prototype change 2005-11-21 23:35:10 +00:00
dyngen-exec.h Preliminary OpenBSD host support (based on OpenBSD patches by Todd T. Fries) 2008-08-15 18:33:42 +00:00
dyngen.c Fix some warnings that would be generated by gcc -Wmissing-prototypes 2008-08-17 20:26:25 +00:00
elf.h Fix most warnings that would be caused by gcc flag -Wundef 2008-09-06 17:47:39 +00:00
elf_ops.h Add statics and missing #includes for prototypes. 2007-11-18 01:44:38 +00:00
exec-all.h Show size for unassigned accesses (Robert Reif) 2008-10-06 18:46:28 +00:00
exec.c Show size for unassigned accesses (Robert Reif) 2008-10-06 18:46:28 +00:00
feature_to_c.sh Add feature_to_c.sh. 2008-10-11 18:23:22 +00:00
gdbstub.c CRIS: Handle GDB writes to pregs. 2008-10-11 19:32:21 +00:00
gdbstub.h Add GDB XML register description support. 2008-10-11 17:55:29 +00:00
gen-icount.h Spelling fixes, spotted by Stuart Brady. 2008-06-30 17:22:19 +00:00
host-utils.c Code used by the linux-user targets should not use vl.h. 2007-11-05 13:01:41 +00:00
host-utils.h Define macro QEMU_GNUC_PREREQ and use it 2008-10-12 16:15:04 +00:00
hostregs_helper.h Fix 64-bit host register corruption. 2007-02-04 13:37:44 +00:00
hpet.h Add a local copy of hpet.h. 2007-09-16 20:03:23 +00:00
hppa-dis.c HPPA (PA-RISC) host support 2008-04-12 20:14:54 +00:00
hppa.ld HPPA (PA-RISC) host support 2008-04-12 20:14:54 +00:00
i386-dis.c Make some i386 disassembler tables const 2008-10-02 18:29:22 +00:00
i386.ld Add TLS sections. 2008-05-31 16:21:33 +00:00
ia64.ld ia64 host support (David Mosberger) 2005-04-07 22:20:31 +00:00
keymaps.c Make keysym tables const 2008-10-02 18:26:42 +00:00
kqemu.c Fix error reporting under Win32 (CreateFile does not set errno) 2008-06-08 01:55:09 +00:00
kqemu.h kqemu API change - allow use of kqemu with 32 bit QEMU on a 64 bit host 2008-05-30 20:48:25 +00:00
loader.c Remove most uses of phys_ram_base (initial patch by Ian Jackson) 2008-05-12 17:22:13 +00:00
m68k-dis.c Fix warnings that would be caused by gcc flag -Wwrite-strings 2008-09-14 06:45:34 +00:00
m68k-semi.c Break up vl.h. 2007-11-17 17:14:51 +00:00
m68k.ld m68k host port (Richard Zidlicky) 2003-08-10 22:14:22 +00:00
mips-dis.c Fix most warnings that would be caused by gcc flag -Wundef 2008-09-06 17:47:39 +00:00
mips.ld Linker scripts for MIPS hosts. 2007-05-05 19:24:38 +00:00
mipsel.ld Linker scripts for MIPS hosts. 2007-05-05 19:24:38 +00:00
monitor.c Allow the monitor to be suspended during non-blocking op 2008-10-06 13:52:44 +00:00
nbd.c Use common objects for qemu-img and qemu-nbd 2008-09-15 15:51:35 +00:00
nbd.h qemu-nbd: remove useless parameter from nbd_negotiate() (Laurent Vivier) 2008-09-10 15:23:19 +00:00
net-checksum.c Add IP checksumming functions to qemu (Gerd Hoffmann) 2008-07-29 19:40:04 +00:00
net.h Add a "null" bluetooth HCI and a header file for bluetooth. 2008-09-28 23:19:47 +00:00
osdep.c Use common objects for qemu-img and qemu-nbd 2008-09-15 15:51:35 +00:00
osdep.h Define macro QEMU_GNUC_PREREQ and use it 2008-10-12 16:15:04 +00:00
ppc-dis.c find -type f | xargs sed -i 's/[\t ]$//g' # on most files 2007-09-16 21:08:06 +00:00
ppc.ld Update ppc.ld to work with newer binutils. 2007-04-28 19:00:30 +00:00
ppc64.ld Correct version of Heikki Lindholms ppc64.ld script 2008-08-20 22:39:24 +00:00
qemu-aio.h Refactor AIO to allow multiple AIO implementations 2008-09-22 19:17:18 +00:00
qemu-binfmt-conf.sh Code provision for n32/n64 mips userland emulation. Not functional yet. 2007-09-30 01:58:33 +00:00
qemu-char.h qemu-char.h: Fix IOCTL values 2008-08-22 21:25:00 +00:00
qemu-common.h Fix IO performance regression in sparc 2008-10-08 19:50:24 +00:00
qemu-doc.texi Update Sparc docs, add -cpu flag 2008-10-04 20:43:39 +00:00
qemu-img.c Fix OpenBSD linker warnings in qemu-img 2008-08-24 10:30:33 +00:00
qemu-img.texi New qemu-img convert -B option, by Marc Bevand. 2008-06-05 21:53:49 +00:00
qemu-lock.h Multithreaded locking fixes. 2008-06-07 20:50:51 +00:00
qemu-log.h Fix some warnings that would be generated by gcc -Wredundant-decls 2008-08-30 09:51:20 +00:00
qemu-malloc.c Fix error introduced by r5044 2008-08-25 20:03:28 +00:00
qemu-nbd.c qemu-nbd: remove useless parameter from nbd_negotiate() (Laurent Vivier) 2008-09-10 15:23:19 +00:00
qemu-nbd.texi Fix formatting of documentation (Stefan Weil) 2008-09-22 20:41:57 +00:00
qemu-tech.texi Update (thanks to Edgar, Thiemo, malc, Paul, Laurent and Andrzej) 2008-10-09 18:52:04 +00:00
qemu-timer.h Break up vl.h. 2007-11-17 17:14:51 +00:00
qemu-tool.c Fix IO performance regression in sparc 2008-10-08 19:50:24 +00:00
qemu_socket.h Use common objects for qemu-img and qemu-nbd 2008-09-15 15:51:35 +00:00
readline.c Handle history additions properly, by Andreas Schwab. 2007-12-17 20:31:43 +00:00
s390-dis.c Revert licensing to "GPLv2 or later", by Ulrich Hecht. 2008-01-17 13:56:59 +00:00
s390.ld update 2003-04-29 21:34:02 +00:00
sdl.c add DisplayState->idle (Samuel Thibault) 2008-08-21 20:08:55 +00:00
sdl_keysym.h Make keysym tables const 2008-10-02 18:26:42 +00:00
sh4-dis.c Fix warnings that would be caused by gcc flag -Wwrite-strings 2008-09-14 06:45:34 +00:00
softmmu-semi.h Suppress gcc 4.x -Wpointer-sign (included in -Wall) warnings 2008-09-20 08:07:15 +00:00
softmmu_defs.h Fix some warnings that would be generated by gcc -Wredundant-decls 2008-08-30 09:51:20 +00:00
softmmu_exec.h Fix some warnings that would be generated by gcc -Wredundant-decls 2008-08-30 09:51:20 +00:00
softmmu_header.h Fix some warnings that would be generated by gcc -Wredundant-decls 2008-08-30 09:51:20 +00:00
softmmu_template.h Add instruction counter. 2008-06-29 01:03:05 +00:00
sparc-dis.c Change some qualifiers to static 2008-10-01 18:13:13 +00:00
sparc.ld More detabification 2007-10-06 11:28:21 +00:00
sparc64.ld Map code buffers below 2G on Sparc64 2008-07-26 15:05:57 +00:00
sys-queue.h Move audio/sys-queue.h => sys-queue.h 2008-07-29 20:08:37 +00:00
sysemu.h Introduce v3 of savevm protocol 2008-10-06 14:53:52 +00:00
tap-win32.c Use WIN32_LEAN_AND_MEAN, by Stefan Weil. 2007-12-17 04:42:29 +00:00
texi2pod.pl Update texi2pod.pl. 2008-02-04 14:47:49 +00:00
thunk.c Make bitmask tables static const 2008-10-05 10:51:10 +00:00
thunk.h Make bitmask tables static const 2008-10-05 10:51:10 +00:00
translate-all.c Small cleanup of gen_intermediate_code(_internal), by Laurent Desnogues. 2008-07-18 18:01:29 +00:00
uboot_image.h Simple u-boot image loading support. 2007-03-06 23:52:01 +00:00
usb-linux.c Add USB sys file-system support (v8) (TJ) 2008-10-07 20:06:37 +00:00
vgafont.h Some little fixes on QEMU 2008-09-06 16:31:30 +00:00
vl.c Fix some issues with QEMUFile 2008-10-13 03:07:56 +00:00
vnc.c Fix compiler warning when _VNC_DEBUG isn't defined. 2008-09-24 15:17:57 +00:00
vnc_keysym.h Make keysym tables const 2008-10-02 18:26:42 +00:00
vnchextile.h vnc dynamic resolution (Stefano Stabellini) 2008-09-15 16:03:41 +00:00
x86_64.ld update 2005-01-06 20:50:00 +00:00
x_keymap.c Add statics and missing #includes for prototypes. 2007-11-18 01:44:38 +00:00

README 

Read the documentation in qemu-doc.html.

Fabrice Bellard.