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2008-12-04Use writeback caching by default with qcow2aliguori1-0/+6
qcow2 writes a cluster reference count on every cluster update. This causes performance to crater when using anything but cache=writeback. This is most noticeable when using savevm. Right now, qcow2 isn't a reliable format regardless of the type of cache your using because metadata is not updated in the correct order. Considering this, I think it's somewhat reasonable to use writeback caching by default with qcow2 files. It at least avoids the massive performance regression for users until we sort out the issues in qcow2. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5879 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-04Add virtio-blk supportaliguori1-1/+1
Virtio-blk is a paravirtual block device based on VirtIO. It can be used by specifying the if=virtio parameter to the -drive parameter. When using -enable-kvm, it can achieve very good performance compared to IDE or SCSI. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5870 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-04Clarify -soundhw documentation as to avoid hda confusionmalc1-4/+4
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5867 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-30Spelling and grammar fixesaurel321-2/+2
Minor fixes of spelling and grammar in comments and documentation Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5835 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-28qemu-doc.texi: rewrite the documentation for the -net optionaurel321-8/+8
Addresses comments from Jamie Lokier. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5807 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-28qemu-doc.texi: document downscript network optionaurel321-4/+6
From Guido Günther, through the Debian BTS. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5806 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-09Document bluetooth support in qemu-doc.balrog1-0/+67
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5654 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-26Preliminary BSD user emulator supportblueswir11-0/+65
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5544 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-14Expand cache= option and use write-through caching by defaultaliguori1-1/+16
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
2008-10-04Update Sparc docs, add -cpu flagblueswir11-16/+64
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5418 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-01qemu-doc: document use of raw values with sendkeyaurel321-2/+3
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5383 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-28Change the way video graphics adapter is selectedmalc1-5/+18
Instead of having (current)three command line switches -std-vga, -cirrusvga and -vmwarevga, provide one -vga switch which takes an argument, so that: qemu -std-vga becomes qemu -vga std qemu -cirrusvga becomes qemu -vga cirrus qemu -vmwarevga becomes qemu -vga vmware Update documentation accordingly. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5335 c046a42c-6fe2-441c-8c8c-71466251a162
2008-08-21Add image format option for USB mass-storage devicesaurel321-2/+4
(fix CVE-2008-1945) Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5059 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-29Simplify -usbdevice net: syntax, allow VLANs with no NICs.balrog1-10/+8
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4965 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-22Add T1 and T2 CPUs, add a Sun4v machineblueswir11-4/+20
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4923 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-19Add Virtual Distributed Ethernet native support, by Luca Bigliardi.ths1-0/+15
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4896 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-17Add CDC-Ethernet usb NIC (original patch from Thomas Sailer).balrog1-1/+14
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4884 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-03Allow QEMU to connect directly to an NBD server, by Laurent Vivier.ths1-0/+35
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4838 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-02Cleanup qemu-nbd related code, by Laurent Vivier.ths1-0/+6
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4829 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-29Add missing file. Fix spelling errors.pbrook1-1/+1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4800 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-29Add instruction counter.pbrook1-0/+11
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4799 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-28Consistencymalc1-1/+1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4796 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-25Change the way audio is configuredmalc1-2/+2
Instead of having separate option for each card and driver use --audio-drv-list and --audio-card-list options. Under Linux it allows to set the default(first probed) driver to something other than OSS. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4792 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-13ISA version of CS4231Amalc1-2/+7
Hopefully someday will be merged with cs4231.c (SPARC version) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4741 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-18Add N810 to allowed -M values, add documentation part for N8x0.balrog1-0/+34
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4490 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-10Correct a formatting issue (Carlo Marcelo Arenas Belon).edgar_igl1-2/+2
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4417 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-09Debugger single step without interrupts (Jason Wessel).edgar_igl1-0/+30
This patch allows the qemu backend debugger to single step an instruction without running the hardware interrupts. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4391 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-07MusicPal docs snippet (Jan Kiszka) and reshuffle ChangeLog.balrog1-0/+21
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4371 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-04Allow bootdevice change from the monitoraurel321-0/+8
(Gildas Le Nadan) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4333 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-28add format= to drive options (CVE-2008-2004)aurel321-0/+4
It is possible for a guest with a raw formatted disk image to write a header to that disk image describing another format (such as qcow2). Stopping and subsequent restart of the guest will cause qemu to detect that format, and could allow the guest to read any host file if qemu is sufficiently privileged (typical in virt environments). The patch defaults to existing behaviour (probing based on file contents), so it still requires the mgmt app (e.g. libvirt xml) to pass a new "format=raw" parameter for raw disk images. Originally noted by Avi Kivity, patch from Chris Wright. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4277 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-27Use correct types to enable > 2G support, based on a patch fromaurel321-1/+3
Anthony Liguori. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4265 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-22Revert "Use correct types to enable > 2G support" (r4238), it isaurel321-3/+1
not yet ready. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4240 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-22Use correct types to enable > 2G support, based on a patch fromaurel321-1/+3
Anthony Liguori. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4238 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-11Add help for -no-shutdown and -no-quit optionsaurel321-0/+9
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4193 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-08Braille device supportaurel321-0/+11
(Samuel Thibault) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4173 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-08Documentation for MIPS Magnum R4000 machine.aurel321-1/+20
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4172 c046a42c-6fe2-441c-8c8c-71466251a162
2008-03-18Documentation update for the monitor change commandaurel321-1/+1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4079 c046a42c-6fe2-441c-8c8c-71466251a162
2008-03-18Documentation for the -curses optionaurel321-0/+6
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4078 c046a42c-6fe2-441c-8c8c-71466251a162
2008-02-03Add VNC reverse connections, by Eddie Kohler.balrog1-7/+14
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3951 c046a42c-6fe2-441c-8c8c-71466251a162
2008-02-03E1000 NIC emulation (Nir Peleg, patch from Dor Laor).balrog1-1/+1
Applied %s/^\([^I ]*\)^I/\1 /g on e1000.c and added e1000 to help message. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3949 c046a42c-6fe2-441c-8c8c-71466251a162
2008-02-01reverted -translation option supportbellard1-11/+0
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3947 c046a42c-6fe2-441c-8c8c-71466251a162
2008-01-23Add option to disable TB cache, by Herve Poussineau.ths1-0/+11
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3930 c046a42c-6fe2-441c-8c8c-71466251a162
2008-01-19Change the usb-serial product ID to a more widely recognised value (Samuel ↵balrog1-1/+1
Thibault). Implement chr_close callback for "stdio" so that it can be closed and reopened. Free chr devices after they're closed. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3927 c046a42c-6fe2-441c-8c8c-71466251a162
2008-01-17Documentation piece explaining "usb_add serial" by Samuel Thibault.balrog1-8/+22
Minor style change. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3926 c046a42c-6fe2-441c-8c8c-71466251a162
2008-01-17Miscellaneous fixes after recent audio additions (malc).balrog1-1/+4
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3925 c046a42c-6fe2-441c-8c8c-71466251a162
2008-01-14Gravis Ultrasound GF1 sound card emulation (malc).balrog1-2/+4
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3921 c046a42c-6fe2-441c-8c8c-71466251a162
2008-01-14PCI AC97 emulation by malc.balrog1-2/+12
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3918 c046a42c-6fe2-441c-8c8c-71466251a162
2008-01-14Change -drive parsing so that paths don't have to be double-escaped (Laurent ↵balrog1-1/+2
Vivier, Johannes Schindelin) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3909 c046a42c-6fe2-441c-8c8c-71466251a162
2008-01-09qemu manpage: describe arguments of usbdevice option, by Aurelien Jarno.ths1-0/+22
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3903 c046a42c-6fe2-441c-8c8c-71466251a162
2007-12-28 Initial support for SS-2 (Sun4c)blueswir11-6/+7
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3870 c046a42c-6fe2-441c-8c8c-71466251a162
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