- Committer: aliguori
- Date: 2008-10-08 19:50:24 UTC
- Revision ID: git-v1:9e472e101f37233f4e32d181d2fee29014c1cf2f
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
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
| Filename | Latest Rev | Last Changed | Committer | Comment | Size | ||
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audio
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1121 | 20 years ago | bellard | audio merge (malc) git-svn-id: svn://svn.savanna |
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darwin-user
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2323 | 17 years ago | ths | Darwin userspace emulation, by Pierre d'Herbemont. |
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fpu
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1327 | 19 years ago | bellard | soft float support git-svn-id: svn://svn.savanna |
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hw
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342 | 21 years ago | bellard | Hardware level VGA emulation (only text mode is te |
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keymaps
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1168 | 20 years ago | bellard | keymaps support (initial patch by Johannes Schinde |
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linux-user
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2 | 21 years ago | bellard | This commit was generated by cvs2svn to compensate |
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pc-bios
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398 | 21 years ago | bellard | bios binary images git-svn-id: svn://svn.savanna |
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slirp
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730 | 20 years ago | bellard | initial user mode network support git-svn-id: sv |
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target-alpha
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2587 | 17 years ago | j_mayer | Alpha architecture emulation core. git-svn-id: s |
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target-arm
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383 | 21 years ago | bellard | new directory structure git-svn-id: svn://svn.sa |
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target-cris
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3346 | 17 years ago | ths | CRIS disassembler, originally from binutils, by Ed |
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target-i386
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383 | 21 years ago | bellard | new directory structure git-svn-id: svn://svn.sa |
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target-m68k
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2187 | 18 years ago | pbrook | ColdFire target. git-svn-id: svn://svn.savannah. |
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target-mips
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1458 | 19 years ago | bellard | MIPS target (Jocelyn Mayer) git-svn-id: svn://sv |
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target-ppc
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470 | 21 years ago | bellard | PowerPC support (Jocelyn Mayer) git-svn-id: svn: |
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target-sh4
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1854 | 18 years ago | bellard | sh4 target (Samuel Tardieu) git-svn-id: svn://sv |
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target-sparc
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384 | 21 years ago | bellard | sparc emulation target (thanx to Thomas M. Ogriseg |
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tcg
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3932 | 16 years ago | bellard | TCG code generator git-svn-id: svn://svn.savanna |
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tests
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9 | 21 years ago | bellard | i386 emulator test git-svn-id: svn://svn.savanna |
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.gitignore |
5172 | 16 years ago | aliguori | Add gitignore file While QEMU officially uses SVN | 280 bytes |
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a.out.h |
2457 | 17 years ago | pbrook | 64bit->win32 cross build fix. git-svn-id: svn:// | 13.6 KB |
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aes.c |
3816 | 17 years ago | ths | Fix miscellaneous minor things, by Andre Przywara. | 59.8 KB |
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aes.h |
1032 | 20 years ago | bellard | AES crypto support git-svn-id: svn://svn.savanna | 717 bytes |
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aio.c |
5286 | 16 years ago | aliguori | Refactor AIO to allow multiple AIO implementations | 4.8 KB |
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alpha-dis.c |
3163 | 17 years ago | ths | find -type f | xargs sed -i 's/[\t ]$//g' # on mos | 80.4 KB |
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alpha.ld |
108 | 21 years ago | bellard | alpha support git-svn-id: svn://svn.savannah.non | 4 KB |
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arm-dis.c |
3555 | 17 years ago | pbrook | Update ARM disassembler. git-svn-id: svn://svn.s | 157 KB |
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arm-semi.c |
4803 | 16 years ago | ths | Add missing return in arm-semi, by Laurent Desnogu | 14.1 KB |
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arm.ld |
4856 | 16 years ago | blueswir1 | Link ARM prologue closer to code segment to avoid | 4.7 KB |
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block-bochs.c |
3568 | 17 years ago | pbrook | Split block API from vl.h. Remove QEMU_TOOL. Repla | 7 KB |
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block-cloop.c |
3568 | 17 years ago | pbrook | Split block API from vl.h. Remove QEMU_TOOL. Repla | 4.8 KB |
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block-cow.c |
3568 | 17 years ago | pbrook | Split block API from vl.h. Remove QEMU_TOOL. Repla | 7.7 KB |
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block-dmg.c |
4975 | 16 years ago | ths | Add qemu_realloc(), by Gerd Hoffmann. git-svn-id | 8.1 KB |
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block-nbd.c |
5018 | 16 years ago | aliguori | Remove unnecessary #includes from block-nbd.c Sig | 4.6 KB |
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block-parallels.c |
3568 | 17 years ago | pbrook | Split block API from vl.h. Remove QEMU_TOOL. Repla | 4.6 KB |
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block-qcow.c |
4662 | 16 years ago | ths | Remove dead-code (else-block) from block-qcow.c, b | 27.9 KB |
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block-qcow2.c |
5302 | 16 years ago | aliguori | fix bug in block-qcow2.c:alloc_cluster_offset() (S | 79.8 KB |
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block-raw-posix.c |
5440 | 16 years ago | aliguori | Fix IO performance regression in sparc Replace si | 32.2 KB |
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block-raw-win32.c |
5286 | 16 years ago | aliguori | Refactor AIO to allow multiple AIO implementations | 13.2 KB |
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block-vmdk.c |
5329 | 16 years ago | blueswir1 | Fix warning, based on patches by Zeev Tarantov and | 25.3 KB |
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block-vpc.c |
3806 | 17 years ago | ths | Fix char* signedness, by Andre Przywara. git-svn | 6.3 KB |
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block-vvfat.c |
5033 | 16 years ago | blueswir1 | Fix OpenBSD linker warnings git-svn-id: svn://svn | 79.3 KB |
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block.c |
5421 | 16 years ago | aliguori | Add bdrv_flush_all() This patch adds a bdrv_flush | 36.4 KB |
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block.h |
5421 | 16 years ago | aliguori | Add bdrv_flush_all() This patch adds a bdrv_flush | 6.5 KB |
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block_int.h |
5229 | 16 years ago | blueswir1 | Fix warnings that would be caused by ld flag --war | 5.7 KB |
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bswap.h |
4110 | 16 years ago | aurel32 | e1000: fix unaligned access (Tristan Gingold) g | 4.5 KB |
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bt-host.c |
5354 | 16 years ago | balrog | Disable bluetooth proxy compilation on win32. gi | 5.3 KB |
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bt-vhci.c |
5354 | 16 years ago | balrog | Disable bluetooth proxy compilation on win32. gi | 4.5 KB |
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Changelog |
4686 | 16 years ago | malc | Update git-svn-id: svn://svn.savannah.nongnu.org | 15.8 KB |
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check_ops.sh |
3683 | 17 years ago | ths | Fixes for s/390 host support, by Bastian Blank. | 1005 bytes |
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cocoa.m |
4025 | 16 years ago | aurel32 | Let the USB tablet reach the far bottom and right | 36.4 KB |
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configure |
5440 | 16 years ago | aliguori | Fix IO performance regression in sparc Replace si | 42.9 KB |
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console.c |
5298 | 16 years ago | balrog | Reintroduce TEXT_CONSOLE_FIXED_SIZE and TEXT_CONSO | 37.7 KB |
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console.h |
5420 | 16 years ago | aliguori | Allow the monitor to be suspended during non-block | 6.3 KB |
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COPYING |
42 | 21 years ago | bellard | distribution patches git-svn-id: svn://svn.savan | 17.5 KB |
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COPYING.LIB |
179 | 21 years ago | bellard | update git-svn-id: svn://svn.savannah.nongnu.org | 25.8 KB |
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cpu-all.h |
5422 | 16 years ago | aliguori | Add dirty tracking for live migration This patch | 26.4 KB |
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cpu-defs.h |
4806 | 16 years ago | pbrook | Move interrupt_request and user_mode_only to commo | 8.5 KB |
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cpu-exec.c |
5434 | 16 years ago | edgar_igl | CRIS: Fix brk 8 and add S-flag emulation. * break | 50.9 KB |
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cris-dis.c |
4342 | 16 years ago | edgar_igl | Teach the CRIS disassembler to stay within the pro | 80.6 KB |
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curses.c |
5298 | 16 years ago | balrog | Reintroduce TEXT_CONSOLE_FIXED_SIZE and TEXT_CONSO | 9.5 KB |
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curses_keys.h |
5385 | 16 years ago | blueswir1 | Make keysym tables const git-svn-id: svn://svn.sa | 12.4 KB |
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cutils.c |
4699 | 16 years ago | pbrook | Prevent guest reusing host memory allocations. g | 2.5 KB |
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d3des.c |
5161 | 16 years ago | aurel32 | Some little fixes on QEMU - some vectors can be d | 15 KB |
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d3des.h |
3131 | 17 years ago | ths | Actually add d3des implementation files. git-svn | 1.5 KB |
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dis-asm.h |
5033 | 16 years ago | blueswir1 | Fix OpenBSD linker warnings git-svn-id: svn://svn | 18.3 KB |
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disas.c |
5010 | 16 years ago | blueswir1 | Fix warnings that would be generated by gcc -Wstri | 11 KB |
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disas.h |
1639 | 19 years ago | bellard | monitor_disas() prototype change git-svn-id: svn | 707 bytes |
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dyngen-exec.h |
5001 | 16 years ago | blueswir1 | Preliminary OpenBSD host support (based on OpenBSD | 9.2 KB |
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dyngen.c |
5011 | 16 years ago | blueswir1 | Fix some warnings that would be generated by gcc - | 91.8 KB |
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elf.h |
5162 | 16 years ago | blueswir1 | Fix most warnings that would be caused by gcc flag | 42 KB |
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elf_ops.h |
3673 | 17 years ago | pbrook | Add statics and missing #includes for prototypes. | 6.2 KB |
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exec-all.h |
5425 | 16 years ago | blueswir1 | Show size for unassigned accesses (Robert Reif) g | 13 KB |
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exec.c |
5425 | 16 years ago | blueswir1 | Show size for unassigned accesses (Robert Reif) g | 97.9 KB |
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gdbstub.c |
5241 | 16 years ago | ths | Move the active FPU registers into env again, and | 40.3 KB |
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gdbstub.h |
5195 | 16 years ago | blueswir1 | Fix warnings that would be caused by gcc flag -Wwr | 485 bytes |
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gen-icount.h |
4798 | 16 years ago | ths | Spelling fixes, spotted by Stuart Brady. git-svn | 1.5 KB |
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host-utils.c |
3526 | 17 years ago | j_mayer | Code used by the linux-user targets should not use | 2.7 KB |
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host-utils.h |
4663 | 16 years ago | ths | Fix always_inline definition for Darwin, by Andrea | 5.1 KB |
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hostregs_helper.h |
2375 | 17 years ago | pbrook | Fix 64-bit host register corruption. git-svn-id: | 2.1 KB |
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hpet.h |
3162 | 17 years ago | ths | Add a local copy of hpet.h. git-svn-id: svn://sv | 618 bytes |
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hppa-dis.c |
4188 | 16 years ago | aurel32 | HPPA (PA-RISC) host support (Stuart Brady) git- | 100 KB |
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hppa.ld |
4188 | 16 years ago | aurel32 | HPPA (PA-RISC) host support (Stuart Brady) git- | 8.1 KB |
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i386-dis.c |
5387 | 16 years ago | blueswir1 | Make some i386 disassembler tables const git-svn- | 97.7 KB |
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i386.ld |
4625 | 16 years ago | pbrook | Add TLS sections. git-svn-id: svn://svn.savannah | 4.5 KB |
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ia64.ld |
1355 | 19 years ago | bellard | ia64 host support (David Mosberger) git-svn-id: | 8.3 KB |
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keymaps.c |
5385 | 16 years ago | blueswir1 | Make keysym tables const git-svn-id: svn://svn.sa | 5.5 KB |
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kqemu.c |
4687 | 16 years ago | malc | Fix error reporting under Win32 (CreateFile does n | 28.3 KB |
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kqemu.h |
4617 | 16 years ago | bellard | kqemu API change - allow use of kqemu with 32 bit | 5.2 KB |
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LICENSE |
3933 | 16 years ago | bellard | use the TCG code generator git-svn-id: svn://svn | 636 bytes |
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loader.c |
4431 | 16 years ago | blueswir1 | Remove most uses of phys_ram_base (initial patch b | 10.2 KB |
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m68k-dis.c |
5195 | 16 years ago | blueswir1 | Fix warnings that would be caused by gcc flag -Wwr | 211 KB |
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m68k-semi.c |
3664 | 17 years ago | pbrook | Break up vl.h. git-svn-id: svn://svn.savannah.no | 12.2 KB |
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m68k.ld |
355 | 21 years ago | bellard | m68k host port (Richard Zidlicky) git-svn-id: sv | 5.9 KB |
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MAINTAINERS |
5077 | 16 years ago | j_mayer | Update maintainers list. git-svn-id: svn://svn.s | 2.1 KB |
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Makefile |
5440 | 16 years ago | aliguori | Fix IO performance regression in sparc Replace si | 9.2 KB |
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Makefile.target |
5440 | 16 years ago | aliguori | Fix IO performance regression in sparc Replace si | 16.3 KB |
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mips-dis.c |
5162 | 16 years ago | blueswir1 | Fix most warnings that would be caused by gcc flag | 205 KB |
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mips.ld |
2762 | 17 years ago | ths | Linker scripts for MIPS hosts. git-svn-id: svn:/ | 8.4 KB |
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mipsel.ld |
2762 | 17 years ago | ths | Linker scripts for MIPS hosts. git-svn-id: svn:/ | 8.4 KB |
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monitor.c |
5420 | 16 years ago | aliguori | Allow the monitor to be suspended during non-block | 73.4 KB |
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nbd.c |
5215 | 16 years ago | aliguori | Use common objects for qemu-img and qemu-nbd Righ | 13.8 KB |
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nbd.h |
5175 | 16 years ago | aliguori | qemu-nbd: remove useless parameter from nbd_negoti | 1.9 KB |
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net-checksum.c |
4960 | 16 years ago | aliguori | Add IP checksumming functions to qemu (Gerd Hoffma | 2.2 KB |
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net.h |
5331 | 16 years ago | balrog | Add a "null" bluetooth HCI and a header file for b | 2 KB |
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osdep.c |
5215 | 16 years ago | aliguori | Use common objects for qemu-img and qemu-nbd Righ | 8 KB |
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osdep.h |
5223 | 16 years ago | balrog | Move offsetof to osdep.h, remove local defintions. | 1.7 KB |
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ppc-dis.c |
3163 | 17 years ago | ths | find -type f | xargs sed -i 's/[\t ]$//g' # on mos | 129 KB |
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ppc.ld |
2724 | 17 years ago | ths | Update ppc.ld to work with newer binutils. git-s | 8.6 KB |
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ppc64.ld |
5024 | 16 years ago | malc | Correct version of Heikki Lindholms ppc64.ld scrip | 8.2 KB |
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qemu-aio.h |
5286 | 16 years ago | aliguori | Refactor AIO to allow multiple AIO implementations | 1.4 KB |
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qemu-binfmt-conf.sh |
3274 | 17 years ago | ths | Code provision for n32/n64 mips userland emulation | 3.9 KB |
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qemu-char.h |
5062 | 16 years ago | aurel32 | qemu-char.h: Fix IOCTL values Signed-off-by: Aure | 2.8 KB |
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qemu-common.h |
5440 | 16 years ago | aliguori | Fix IO performance regression in sparc Replace si | 3.5 KB |
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qemu-doc.texi |
5407 | 16 years ago | blueswir1 | Update Sparc docs, add -cpu flag git-svn-id: svn: | 92.9 KB |
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qemu-img.c |
5067 | 16 years ago | blueswir1 | Fix OpenBSD linker warnings in qemu-img git-svn-i | 21.6 KB |
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qemu-img.texi |
4661 | 16 years ago | ths | New qemu-img convert -B option, by Marc Bevand. | 4.4 KB |
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qemu-lock.h |
4681 | 16 years ago | pbrook | Multithreaded locking fixes. git-svn-id: svn://s | 6 KB |
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qemu-log.h |
5104 | 16 years ago | blueswir1 | Fix some warnings that would be generated by gcc - | 90 bytes |
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qemu-malloc.c |
5075 | 16 years ago | blueswir1 | Fix error introduced by r5044 qemu_strdup() doesn | 1.7 KB |
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qemu-nbd.c |
5175 | 16 years ago | aliguori | qemu-nbd: remove useless parameter from nbd_negoti | 13 KB |
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qemu-nbd.texi |
5290 | 16 years ago | aliguori | Fix formatting of documentation (Stefan Weil) Fix | 1.5 KB |
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qemu-tech.texi |
4644 | 16 years ago | ths | Spelling fixes, by Stefan Weil. git-svn-id: svn: | 19.9 KB |
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qemu-timer.h |
3664 | 17 years ago | pbrook | Break up vl.h. git-svn-id: svn://svn.savannah.no | 1.5 KB |
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qemu-tool.c |
5440 | 16 years ago | aliguori | Fix IO performance regression in sparc Replace si | 1.3 KB |
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qemu_socket.h |
5215 | 16 years ago | aliguori | Use common objects for qemu-img and qemu-nbd Righ | 685 bytes |
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readline.c |
3825 | 17 years ago | ths | Handle history additions properly, by Andreas Schw | 12.4 KB |
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README |
1271 | 19 years ago | bellard | update git-svn-id: svn://svn.savannah.nongnu.org | 58 bytes |
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s390-dis.c |
3911 | 16 years ago | ths | Revert licensing to "GPLv2 or later", by Ulrich He | 90.3 KB |
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s390.ld |
118 | 21 years ago | bellard | update git-svn-id: svn://svn.savannah.nongnu.org | 7 KB |
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sdl.c |
5045 | 16 years ago | aliguori | add DisplayState->idle (Samuel Thibault) Add idle | 20 KB |
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sdl_keysym.h |
5385 | 16 years ago | blueswir1 | Make keysym tables const git-svn-id: svn://svn.sa | 8.5 KB |
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sh4-dis.c |
5195 | 16 years ago | blueswir1 | Fix warnings that would be caused by gcc flag -Wwr | 83.1 KB |
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softmmu-semi.h |
5264 | 16 years ago | blueswir1 | Suppress gcc 4.x -Wpointer-sign (included in -Wall | 1.9 KB |
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softmmu_defs.h |
5104 | 16 years ago | blueswir1 | Fix some warnings that would be generated by gcc - | 1 KB |
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softmmu_exec.h |
5104 | 16 years ago | blueswir1 | Fix some warnings that would be generated by gcc - | 2.3 KB |
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softmmu_header.h |
5104 | 16 years ago | blueswir1 | Fix some warnings that would be generated by gcc - | 9.4 KB |
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softmmu_template.h |
4788 | 16 years ago | pbrook | Add instruction counter. git-svn-id: svn://svn.s | 12 KB |
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sparc-dis.c |
5364 | 16 years ago | blueswir1 | Change some qualifiers to static git-svn-id: svn: | 169 KB |
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sparc.ld |
3328 | 17 years ago | blueswir1 | More detabification git-svn-id: svn://svn.savan | 4.2 KB |
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sparc64.ld |
4940 | 16 years ago | blueswir1 | Map code buffers below 2G on Sparc64 git-svn-id: | 4.6 KB |
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sys-queue.h |
4964 | 16 years ago | aliguori | Move audio/sys-queue.h => sys-queue.h This makes | 16.8 KB |
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sysemu.h |
5423 | 16 years ago | aliguori | Introduce v3 of savevm protocol The current savev | 5.2 KB |
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tap-win32.c |
3822 | 17 years ago | ths | Use WIN32_LEAN_AND_MEAN, by Stefan Weil. git-svn | 19.8 KB |
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texi2pod.pl |
3953 | 16 years ago | ths | Update texi2pod.pl. git-svn-id: svn://svn.savann | 11.9 KB |
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thunk.c |
5414 | 16 years ago | blueswir1 | Make bitmask tables static const git-svn-id: svn: | 8.2 KB |
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thunk.h |
5414 | 16 years ago | blueswir1 | Make bitmask tables static const git-svn-id: svn: | 4.2 KB |
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TODO |
4442 | 16 years ago | bellard | update git-svn-id: svn://svn.savannah.nongnu.org/ | 1.1 KB |
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translate-all.c |
4880 | 16 years ago | ths | Small cleanup of gen_intermediate_code(_internal), | 5.1 KB |
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uboot_image.h |
2462 | 17 years ago | pbrook | Simple u-boot image loading support. git-svn-id: | 5.9 KB |
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usb-linux.c |
5430 | 16 years ago | aliguori | Add USB sys file-system support (v8) (TJ) This pa | 44.6 KB |
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VERSION |
3882 | 16 years ago | bellard | version change git-svn-id: svn://svn.savannah.no | 5 bytes |
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vgafont.h |
5161 | 16 years ago | aurel32 | Some little fixes on QEMU - some vectors can be d | 93.3 KB |
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vl.c |
5440 | 16 years ago | aliguori | Fix IO performance regression in sparc Replace si | 250 KB |
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vnc.c |
5301 | 16 years ago | ths | Fix compiler warning when _VNC_DEBUG isn't defined | 64.9 KB |
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vnc_keysym.h |
5385 | 16 years ago | blueswir1 | Make keysym tables const git-svn-id: svn://svn.sa | 10.1 KB |
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vnchextile.h |
5218 | 16 years ago | aliguori | vnc dynamic resolution (Stefano Stabellini) Signe | 4.4 KB |
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x86_64.ld |
1198 | 19 years ago | bellard | update git-svn-id: svn://svn.savannah.nongnu.org | 6.4 KB |
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x_keymap.c |
3673 | 17 years ago | pbrook | Add statics and missing #includes for prototypes. | 3.8 KB |
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