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2008-10-14Define O_DSYNC as O_SYNC if necessary.aliguori
O_DSYNC isn't available on OS X. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5486 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-14Expand cache= option and use write-through caching by defaultaliguori
This patch changes the cache= option to accept none, writeback, or writethough to control the host page cache behavior. By default, writethrough caching is now used which internally is implemented by using O_DSYNC to open the disk images. When using -snapshot, writeback is used by default since data integrity it not at all an issue. cache=none has the same behavior as cache=off previously. The later syntax is still supported by now deprecated. I also cleaned up the O_DIRECT implementation to avoid many of the #ifdefs. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5485 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-13linux-user: implement msg* syscallsaurel32
Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5484 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-13linux-user: fix and cleanup IPCOP_msg* ipc calls handlingaurel32
Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5483 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-13open() can also return EPERM for O_RDWR on a readonly deviceaurel32
Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5482 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-13FreeBSD also has clock_gettimeaurel32
Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5481 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-13linux-user: fix getdents* syscallsaurel32
glibc's structs dirent and dirent64 is different from in-kernel dirent and dirent64. Kernel headers doesn't provide structs dirent(64) any more. So we should add it to qemu headers. To avoid conflict with glibc it called struct linux_dirent(64). Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5480 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-13linux-user: Add readahead syscallaurel32
Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5479 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-13Introduce TCP live migration protocolaliguori
This patch introduces a tcp protocol for live migration. It can be used as follows: qemu-system-x86_64 -hda ~/images/linux-test.img -monitor stdio <vm runs for a while> (qemu) migrate tcp:localhost:1025 On the same system: qemu-system-x86_64 -hda ~/images/linux-test.img -incoming tcp:localhost:1025 The monitor can be interacted with while waiting for an incoming live migration. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5478 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-13Introduce ethernet announcement function.aliguori
This patch adds an ethernet announce function that will minimize downtime when doing a live migration. This code originates from KVM. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5477 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-13Introduce UI for live migrationaliguori
This patch introduces a command line parameter and monitor command for starting a live migration. The next patch will provide an example of how to use these parameters. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5476 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-13Introduce a buffered file wrapper for QEMUFilealiguori
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
2008-10-13Fix some issues with QEMUFilealiguori
This patch allows QEMUFile's read and write operations to return negative error codes. This is necessary to detect things like closed streams during live migration. It also removes unused code for QEMUFileFD write path. Finally, it makes sure to avoid attempting to flush an output buffer if the file is only being used for input. This was spotted by Uri Lublin. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5474 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-12SH4: Implement MOVUA.Laurel32
* target-sh4/translate.c (_decode_opc): Implement MOVUA.L. (Vladimir Prus) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5473 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-12SH4: fix single-steppingaurel32
* target-sh/translate.c (gen_intermediate_code_internal): If singlestep is enabled, update PC before stopping. (Vladimir Prus) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5472 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-12SH4: Fix swap.baurel32
The SH4 manual documents the swap.b instruction as follows: SWAP.B Rm,Rn Rm → swap lower 2 bytes → Rn Current QEMU code, in addition to the above, also clears the high 16 bits. The immediate breakage I saw is that htonl function applied to netmask of 255.255.255.0 gives 0, which breaks all networking. (Vladimir Prus) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5471 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-12Make sure to initialize fd_sets in aio.caliguori
This was spotted by valgrind. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5470 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-12hw/apic.c: use functions from host-utils.haurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5469 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-12COPYING: update from FSFaurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5468 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-12Define macro QEMU_GNUC_PREREQ and use itaurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5467 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-12Only use __builtin_* with GCC >= 3.4aurel32
Fix gcc 3.3 builds, broken in revision 5465. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5466 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-12hw/apic.c: use __builtin funtions instead of assembly codeaurel32
Suggested by malc. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5465 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-12Optimize some host-utils function with gcc builtinsaurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5464 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-12Get rid of sys/poll.haurel32
(C.W. Betts) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5463 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-11CRIS: Initialize the arch version preg to v32.edgar_igl
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5462 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-11CRIS: Handle GDB writes to pregs.edgar_igl
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5461 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-11Add feature_to_c.sh.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5460 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-11Add GDB XML register description support.pbrook
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5459 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-11Fix some debugging mistakes/leftoversmalc
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5458 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-11Use the adequate CFLAGS for confiugure tests.balrog
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5457 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-11Add a configure check for zlib (Ryota OZAKI).balrog
This patch makes configure check zlib devel files installed. Current configure doesn't check that, so make will fail if they are not installed. Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5456 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-11Correct SCSI error reporting (Laurent Vivier)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5455 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-11Increase write buffer size in pflash emulation (Thomas Petazzoni).balrog
The current flash emulation code advertises a write buffer size of 16 bytes (1 << 4, according to offset 0x2A of the CFI table). This is very small compared to normal write buffer sizes, and makes the process of writing to the flash very slow (at least from U-Boot). This patch increases this size to 2048 bytes. Except the modification of the CFI table, the only other required modification is to use "value" instead of "cmd" to set pfl->counter, because cmd is truncated to the 8 lower bits of value, while the number of bytes for a write can now be greater than 255 bytes. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5454 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-09Update (thanks to Edgar, Thiemo, malc, Paul, Laurent and Andrzej)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5453 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-09Fix IDE DIAGNOSE for packet devices (Vincent Sanders)aliguori
The DIAGNOSE command in the qemu IDE implementation has an error when use dfor packet devices. The status register value is dependant on the drive being a packet device or not, this patch corrects the returned status. From the ATA/PI specification (V6 draft): "If the device implements the PACKET command feature set, the device SHALL clear bits 6,5,4,3,2 and 0 in the Status register to zero." A selection of physical devices have been checked and do conform to the specifications behaviour. Signed-off-by: Vincent Sanders <vince@simtec.co.uk> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5452 c046a42c-6fe2-441c-8c8c-71466251a162
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
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