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aliguori 9e472e101f Fix IO performance regression in sparc

Replace signalfd with signal handler/pipe.  There is no way to interrupt
the CPU execution loop when a file descriptor becomes readable.  This
results in a large performance regression in sparc emulation during
bootup.
   
This patch switches us to signal handler/pipe which was originally
suggested by Ian Jackson.  The signal handler lets us interrupt the
CPU emulation loop while the write to a pipe lets us avoid the
select/signal race condition.
    
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5451 c046a42c-6fe2-441c-8c8c-71466251a162

2008-10-08 19:50:24 +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

machine struct - specify max_cpus at the per machine level (Jes Sorensen)

2008-10-07 20:39:39 +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

Fix ARM NEON vdup and vtbl bugs.

2008-09-22 00:52:42 +00:00

target-cris

CRIS: Partial EXS reg support and fixes for SPC.

2008-10-08 14:22:17 +00:00

target-i386

Fix crc32w decoding, fix a constant width in blendvpd.

2008-10-04 11:33:52 +00:00

target-m68k

Silence some warnings about no value returned from non-void function

2008-10-05 11:47:55 +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

Silence some warnings about no value returned from non-void function

2008-10-05 11:47:55 +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

a.out.h

…

aes.c

Fix miscellaneous minor things, by Andre Przywara.

2007-12-17 03:15:52 +00:00

aes.h

…

aio.c

Refactor AIO to allow multiple AIO implementations

2008-09-22 19:17:18 +00:00

alpha-dis.c

…

alpha.ld

…

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_int.h

Fix warnings that would be caused by ld flag --warn-common

2008-09-17 19:04:14 +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-qcow2.c

fix bug in block-qcow2.c:alloc_cluster_offset() (Shahar Frank)

2008-09-24 16:52:15 +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-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

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

Changelog

Update

2008-06-08 01:55:07 +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

Fix IO performance regression in sparc

2008-10-08 19:50:24 +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

COPYING

…

COPYING.LIB

…

cpu-all.h

Add dirty tracking for live migration

2008-10-06 14:02:03 +00:00

cpu-defs.h

Move interrupt_request and user_mode_only to common cpu state.

2008-07-01 20:01:19 +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_keys.h

Make keysym tables const

2008-10-02 18:26:42 +00:00

curses.c

Reintroduce TEXT_CONSOLE_FIXED_SIZE and TEXT_CONSOLE for resizable vc's.

2008-09-24 03:32:33 +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

…

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

…

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_ops.h

Add statics and missing #includes for prototypes.

2007-11-18 01:44:38 +00:00

elf.h

Fix most warnings that would be caused by gcc flag -Wundef

2008-09-06 17:47:39 +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

gdbstub.c

Move the active FPU registers into env again, and use more TCG registers

2008-09-18 11:57:27 +00:00

gdbstub.h

Fix warnings that would be caused by gcc flag -Wwrite-strings

2008-09-14 06:45:34 +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

Fix always_inline definition for Darwin, by Andreas Faerber.

2008-06-05 22:55:54 +00:00

hostregs_helper.h

…

hpet.h

…

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

…

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

LICENSE

use the TCG code generator

2008-02-01 10:50:11 +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

…

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

Fix IO performance regression in sparc

2008-10-08 19:50:24 +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

…

mipsel.ld

…

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

Move offsetof to osdep.h, remove local defintions.

2008-09-16 13:36:57 +00:00

ppc64.ld

Correct version of Heikki Lindholms ppc64.ld script

2008-08-20 22:39:24 +00:00

ppc-dis.c

…

ppc.ld

…

qemu_socket.h

Use common objects for qemu-img and qemu-nbd

2008-09-15 15:51:35 +00:00

qemu-aio.h

Refactor AIO to allow multiple AIO implementations

2008-09-22 19:17:18 +00:00

qemu-binfmt-conf.sh

…

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

Spelling fixes, by Stefan Weil.

2008-06-03 19:51:57 +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

readline.c

Handle history additions properly, by Andreas Schwab.

2007-12-17 20:31:43 +00:00

README

…

s390-dis.c

Revert licensing to "GPLv2 or later", by Ulrich Hecht.

2008-01-17 13:56:59 +00:00

s390.ld

…

sdl_keysym.h

Make keysym tables const

2008-10-02 18:26:42 +00:00

sdl.c

add DisplayState->idle (Samuel Thibault)

2008-08-21 20:08:55 +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_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

softmmu-semi.h

Suppress gcc 4.x -Wpointer-sign (included in -Wall) warnings

2008-09-20 08:07:15 +00:00

sparc64.ld

Map code buffers below 2G on Sparc64

2008-07-26 15:05:57 +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

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

TODO

update

2008-05-13 18:26:52 +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

…

usb-linux.c

Add USB sys file-system support (v8) (TJ)

2008-10-07 20:06:37 +00:00

VERSION

version change

2008-01-06 17:10:54 +00:00

vgafont.h

Some little fixes on QEMU

2008-09-06 16:31:30 +00:00

vl.c

Fix IO performance regression in sparc

2008-10-08 19:50:24 +00:00

vnc_keysym.h

Make keysym tables const

2008-10-02 18:26:42 +00:00

vnc.c

Fix compiler warning when _VNC_DEBUG isn't defined.

2008-09-24 15:17:57 +00:00

vnchextile.h

vnc dynamic resolution (Stefano Stabellini)

2008-09-15 16:03:41 +00:00

x86_64.ld

…

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.