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2008-10-08Fix IO performance regression in sparcaliguori
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
2008-10-08CRIS: linux-user signals dont need ERP compensation after break anymore.edgar_igl
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5450 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-08CRIS: linux-user ERP compensation not needed anymore.edgar_igl
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5449 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-08CRIS: Partial EXS reg support and fixes for SPC.edgar_igl
* Add partial support for the EXS (exception status) register. * Update SPC after each singlestep exception. * Remove special treatment of break 8. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5448 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-08CRIS: Correct typos.edgar_igl
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5447 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-07CRIS: Make local objects static.edgar_igl
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5446 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-07CRIS: Fix brk 8 and add S-flag emulation.edgar_igl
* break 8 sets ERP to the current insn. * First shot at S flag single-stepping. * Make it easier to use the local disasm. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5445 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-07add help text for --enable-sparse (Gerd Hoffman)aliguori
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5444 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-07machine struct - specify max_cpus at the per machine level (Jes Sorensen)aliguori
Introduce a max_cpus per-machine variable, allowing individual boards to limit it's number of CPUs. Check requested number of CPUs in setup code and exit if it exceeds the supported number for the machine. This also renders the static MAX_CPUS check obsolete, so remove this from vl.c. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5443 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-07machine struct - use C99 initializers (Jes Sorensen)aliguori
Modify all the machine struct declarations to use C99 initializers. This patch has no functional changes. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5442 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-07Add USB sys file-system support (v8) (TJ)aliguori
This patch adds support for host USB devices discovered via: /sys/bus/usb/devices/* and opened from /dev/bus/usb/*/* /dev/bus/usb/devices and opened from /dev/bus/usb/*/* in addition to the existing discovery via: /proc/bus/usb/devices and opened from /proc/bus/usb/*/* Signed-off-by: TJ <linux@tjworld.net> Signed-off-by: Anthony Liguori <aliguori> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5441 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-07Add sparse checker support to the build system (Gerd Hoffman)aliguori
This adds support for running the sparse checker during the build process. Left it off by default for now, build becomes very noisy with sparse checking turned on as it has to complain alot (partly even in the system headers!). The qemu code base needs quite some cleanups before we should consider turning it on by default. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5440 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-07Add static (spotted by sparse)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5439 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-07Fix error in fexpand (spotted by sparse)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5438 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-06Switch the memory savevm handler to be "live"aliguori
This patch replaces the static memory savevm/loadvm handler with a "live" one. This handler is used even if performing a non-live migration. The key difference between this handler and the previous is that each page is prefixed with the address of the page. The QEMUFile rate limiting code, in combination with the live migration dirty tracking bits, is used to determine which pages should be sent and how many should be sent. The live save code "converges" when the number of dirty pages reaches a fixed amount. Currently, this is 10 pages. This is something that should eventually be derived from whatever the bandwidth limitation is. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5437 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-06Show size for unassigned accesses (Robert Reif)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5436 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-06Prepare for changing audio_pcm_ops dynamically (partially revert r5422)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5435 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-06Introduce v3 of savevm protocolaliguori
The current savevm/loadvm protocol has some draw backs. It does not support the ability to do progressive saving which means it cannot be used for live checkpointing or migration. The sections sizes are 32-bit integers which means that it will not function when using more than 4GB of memory for a guest. It attempts to seek within the output file which means it cannot be streamed. The current protocol also is pretty lax about how it supports forward compatibility. If a saved section version is greater than what the restore code support, the restore code generally treats the saved data as being in whatever version it supports. This means that restoring a saved VM on an older version of QEMU will likely result in silent guest failure. This patch introduces a new version of the savevm protocol. It has the following features: * Support for progressive save of sections (for live checkpoint/migration) * An asynchronous API for doing save * Support for interleaving multiple progressive save sections (for future support of memory hot-add/storage migration) * Fully streaming format * Strong section version checking Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5434 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-06Add dirty tracking for live migrationaliguori
This patch adds a dirty tracking bit for live migration. We use 0x08 because kqemu uses 0x04. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5433 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-06Add bdrv_flush_all()aliguori
This patch adds a bdrv_flush_all() function. It's necessary to ensure that all IO operations have been flushed to disk before completely a live migration. N.B. we don't actually use this now. We really should flush the block drivers using an live savevm callback to avoid unnecessary guest down time. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5432 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-06Allow the monitor to be suspended during non-blocking opaliguori
Live migration happens in the background, but it is useful to make the monitor command appear as if it's blocking. This allows a management tool to immediately know when the live migration has completed without having to poll the migration status. This patch allows the monitor to be suspended from a monitor callback which will prevent new monitor commands from being executed. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5431 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05Silence some warnings about no value returned from non-void functionblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5430 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05Make various generated structures staticblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5429 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05Make target_sigaltstack_used staticblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5428 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05Export x86_stack_size in qemu.hblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5427 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05Make ioctl table staticblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5426 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05Make bitmask tables static constblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5425 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05Make struct_termios_def constblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5424 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05Move wav_start_capture prototype to avoid a warning with -Wmissing-prototypesblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5423 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05Make audio_pcm_opsstatic constblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5422 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05Add some missing static and const qualifiers, reg_names only used if NDEBUG setblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5421 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05Variable logfilename is not used outside exec.cblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5420 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05Variable autostart is not used outside main()blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5419 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-04Update Sparc docs, add -cpu flagblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5418 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-04Fix crc32w decoding, fix a constant width in blendvpd.balrog
Forced the constant's width to long long so that it doesn't overflow, problem spotted by C. W. Betts. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5417 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-04Make network packet debug functions more accessibleblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5416 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-04Add some missing static qualifiersblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5415 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-04Move nographic export to sysemu.hblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5414 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-04Use qemu-log.hblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5413 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-04x86 "popcnt" affects flags.balrog
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5412 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-04Implement SSE4.1, SSE4.2 (x86).balrog
This adds support for CPUID_EXT_SSE41, CPUID_EXT_SSE42, CPUID_EXT_POPCNT extensions. Most instructions haven't been tested yet. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5411 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-03Improve pflash cfi01 debug messages (Thomas Petazzoni).balrog
This patches slightly improves the debugging messages in pflash_read() and pflash_write(). Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5410 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-03Reset CFI01 flash wcycle after erase confirm (Thomas Petazzoni).balrog
pfl->wcycle was set to 1 when the erase confirm command was set, which lead to the next command being misinterpreted by Qemu: pflash_write: Unimplemented flash cmd sequence (offset 00000000, wcycle 0x1 cmd 0x20 value 0x70) This patch fixes this issue by resetting pfl->wcycle to 0 on erase confirm so that the next command is considered as a new one. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5409 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-03Rearrange tick functionsblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5408 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-03Fix missing prototype warnings by moving declarationsblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5407 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-03Fix warning about unused functionblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5406 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-03Fix warning about missing return valueblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5405 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-02Optimize 64 bit bswapmalc
Use rldimi instead of rldicr/or pair, saves us one instruction. Suggested by Hollis Blanchard. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5404 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-02Do not use load_seg_vm to load CS in real mode iret handlingmalc
load_seg_vm calls cpu_x86_load_seg_cache which updates hflags of current env, real hardware doesn't do this, nor the code that handles real mode lret/lcall/ljmp. This unbreaks "unreal mode" and makes QEMU the first emulator being able to run Project Angel demo by IMPACT Studios. (Not that there are many physical machines out there capable of doing the same) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5403 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-02Include qemu-common.h in order to get prototypes for qemu_malloc etc.blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5402 c046a42c-6fe2-441c-8c8c-71466251a162
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