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2011-05-15doc: Add explanation that -alt-grab and -ctrl-grab affect special keysBrad Hards
Phillip Merensky reported that the special keys (e.g. Ctrl-Alt-f for full screen) did not work correctly if -alt-grab is used. BUG: 696530 Review of ui/sdl.c:sdl_refresh indicates that this is the intended behaviour, so we should update the documentation to match the actual behaviour, as suggested by Phillip in the bug report. Signed-off-by: Brad Hards <bradh@frogmouth.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-05-08Introduce -machine command option.Anthony PERARD
This option gives the ability to switch one "accelerator" like kvm, xen or the default one tcg. We can specify more than one accelerator by separate them by a colon. QEMU will try each one and use the first whose works. So, ./qemu -machine accel=xen:kvm:tcg which would try Xen support first, then KVM and finally TCG if none of the other works. By default, QEMU will use TCG. But we can specify another default in the global configuration file. Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-04-25doc: fix slirp descriptionBrad Hards
net/slirp.c says: /* default settings according to historic slirp */ struct in_addr net = { .s_addr = htonl(0x0a000200) }; /* 10.0.2.0 */ struct in_addr mask = { .s_addr = htonl(0xffffff00) }; /* 255.255.255.0 */ struct in_addr host = { .s_addr = htonl(0x0a000202) }; /* 10.0.2.2 */ struct in_addr dhcp = { .s_addr = htonl(0x0a00020f) }; /* 10.0.2.15 */ struct in_addr dns = { .s_addr = htonl(0x0a000203) }; /* 10.0.2.3 */ Which I think is not what the documentation says. Signed-off-by: Brad Hards <bradh@frogmouth.net> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-04-16Fix some typos in comments and documentationStefan Weil
helpfull -> helpful usefull -> useful cotrol -> control and a grammar fix. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-03-22error message if user specifies curses on cmd line when curses is disabledJes Sorensen
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-03-22error message if user specifies SDL cmd line option when SDL is disabledJes Sorensen
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-03-22Add support for -display vncJes Sorensen
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-03-22Introduce -display noneJes Sorensen
New option -display none. This option differs from -nographic by not trying to take control of stdio etc. but instead behaves as if a graphics display is enabled, except that it doesn't show one. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-03-22Introduce -display argumentJes Sorensen
This patch introduces a -display argument which consolidates the setting of the display mode. Valid options are: sdl/curses/default Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-02-23vnc: add a non-adaptive optionCorentin Chary
This option allow to disable adaptive behaviors in some encodings. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-02-01vhost: force vhost off for non-MSI guestsmst@redhat.com
When MSI is off, each interrupt needs to be bounced through the io thread when it's set/cleared, so vhost-net causes more context switches and higher CPU utilization than userspace virtio which handles networking in the same thread. We'll need to fix this by adding level irq support in kvm irqfd, for now disable vhost-net in these configurations. Added a vhostforce flag to force vhost-net back on. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-02-01tap: safe sndbuf defaultMichael S. Tsirkin
With current sndbuf default value, a blocked target guest can prevent another guest from transmitting any packets. While current sndbuf value (1M) is reported to help some UDP based workloads, the default should be safe (0). Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-01-24spice: add chardev (v5)Alon Levy
Adding a chardev backend for spice, where spice determines what to do with it based on the name attribute given during chardev creation. For usage by spice vdagent in conjunction with a properly named virtio-serial device, and future smartcard channel usage. Example usage: qemu -device virtio-serial -chardev spicevmc,name=vdagent,id=vdagent \ -device virtserialport,chardev=vdagent,name=com.redhat.spice.0 v4->v5: * add tracing events * fix missing comma * fix help string to show debug is optional v3->v4: * updated commit message v1->v3 changes: (v2 had a wrong commit message) * removed spice-qemu-char.h, folded into ui/qemu-spice.h * removed dead IOCTL code * removed comment * removed ifdef CONFIG_SPICE from qemu-config.c and qemu-options.hx help. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2010-12-27Merge branch 'spice.v23.pull' of git://anongit.freedesktop.org/spice/qemuAurelien Jarno
* 'spice.v23.pull' of git://anongit.freedesktop.org/spice/qemu: vnc/spice: add set_passwd monitor command. vnc: support password expire vnc: auth reject cleanup spice: add qmp 'query-spice' and hmp 'info spice' commands. spice: connection events. spice: add qxl device spice: add qxl vgabios binary.
2010-12-09spice: add qxl deviceGerd Hoffmann
qxl is a paravirtual graphics card. The qxl device is the bridge between the guest and the spice server (aka libspice-server). The spice server will send the rendering commands to the spice client, which will actually render them. The spice server is also able to render locally, which is done in case the guest wants read something from video memory. Local rendering is also used to support display over vnc and sdl. qxl is activated using "-vga qxl". qxl supports multihead, additional cards can be added via '-device qxl". [ v2: add copyright to files ] [ v2: use qemu-common.h for standard includes ] [ v2: create separate qxl-vga device for primary ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2010-12-09net/sock: option to specify local addressMike Ryan
Add an option to specify the host IP to send multicast packets from, when using a multicast socket for networking. The option takes an IP address and sets the IP_MULTICAST_IF socket option, which causes the packets to use that IP's interface as an egress. This is useful if the host machine has several interfaces with several virtual networks across disparate interfaces. Signed-off-by: Mike Ryan <mikeryan@ISI.EDU> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-11-02intel-hda: documentation updateGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
2010-10-08spice: add misc config optionsGerd Hoffmann
This patch adds a few more options to tweak spice server behavior. The documentation update chunk has the details ;)
2010-10-08spice: add config options for the listening addressGerd Hoffmann
Make listening address configurable. Also add options to force using IPv4 or IPv6.
2010-10-08spice: add config options for channel security.Gerd Hoffmann
This allows to enforce tls or plaintext usage for certain spice channels. [ v2: code style fixup ]
2010-10-08spice: make compression configurable.Yonit Halperin
This patch adds options to the -spice command line switch to configure image compression. [ v2: speling fix in the documentation ]
2010-10-08spice: tls supportGerd Hoffmann
Add options to the -spice command line switch to setup tls.
2010-09-21spice: core bitsGerd Hoffmann
Add -spice command line switch. Has support setting passwd and port for now. With this patch applied the spice client can successfully connect to qemu. You can't do anything useful yet though.
2010-09-09trace: Add trace file name command-line optionPrerna Saxena
This patch adds an optional command line switch '-trace' to specify the filename to write traces to, when qemu starts. Eg, If compiled with the 'simple' trace backend, [temp@system]$ qemu -trace FILENAME IMAGE Allows the binary traces to be written to FILENAME instead of the option set at config-time. Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-09-08virtio-9p: Add SM_NONE security modelAneesh Kumar K.V
This is equivalent to SM_PASSTHROUGH security model. The only exception is, failure of privilige operation like chown are ignored. This makes a passthrough like security model usable for people who runs kvm as non root Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
2010-08-22compile -fsdev and -virtfs cmd line options unconditionally.Gerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-30Merge branch 'for-anthony' of git://repo.or.cz/qemu/kevinAurelien Jarno
* 'for-anthony' of git://repo.or.cz/qemu/kevin: Fix -snapshot deleting images on disk change block: Use error codes from lower levels for error message block: default to 0 minimal / optiomal I/O size move 'unsafe' to end of caching modes in help virtio-blk: Create exit function to unregister savevm block migration: propagate return value when bdrv_write() returns < 0 ide/atapi: add support for GET EVENT STATUS NOTIFICATION
2010-07-26vnc: add lossy optionCorentin Chary
The lossy option can be used to enable lossy compression methods like gradient or jpeg. This patch disable them by default. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-26move 'unsafe' to end of caching modes in helpBruce Rogers
Libvirt parses qemu help output to determine qemu features. In particular it probes for the following: "cache=writethrough|writeback|none". The addition of the unsafe cache mode was inserted within this string, as opposed to being added to the end, which impacted libvirt's probe. Unbreak libvirt by keeping the existing cache modes intact and add unsafe to the end. This problem only manifests itself if a caching mode is explicitly specified in the libvirt xml, in which case older syntax for caching is passed to qemu, which it no longer understands. Signed-off-by: Bruce Rogers <brogers@novell.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-07-13qemu-options: add documentation for stdio signal=on|offAurelien Jarno
Commit 5989020bc11f8ba448d6fb79f4562f882a693d89 introduced a chardev option to disable signals on stdio. Add the corresponding documentation. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-22virtio-9p: Introduces an option to specify the security model.Venkateswararao Jujjuri (JV)
The new option is: -fsdev fstype,id=myid,path=/share_path/,security_model=[mapped|passthrough] -virtfs fstype,path=/share_path/,security_model=[mapped|passthrough],mnt_tag=tag In the case of mapped security model, files are created with QEMU user credentials and the client-user's credentials are saved in extended attributes. Whereas in the case of passthrough security model, files on the filesystem are directly created with client-user's credentials. Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-05-27Make cache=unsafe the default for -snapshotAlexander Graf
When using -snapshot we don't care about data integrity of the cow file at all, so let's disable flushing there and squeeze out the last drop of performance we could possibly get. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-26Add cache=unsafe parameter to -driveAlexander Graf
Usually the guest can tell the host to flush data to disk. In some cases we don't want to flush though, but try to keep everything in cache. So let's add a new cache value to -drive that allows us to set the cache policy to most aggressive, disabling flushes. We call this mode "unsafe", as guest data is not guaranteed to survive host crashes anymore. This patch also adds a noop function for aio, so we can do nothing in AIO fashion. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-22Fix -device help and documentationMarkus Armbruster
Commit 6616b2ad reverted commit 40ea285c. Looks like a mismerge to me. Signed-off-by: Markus Armbruster <armbru@redhat.com> Acked-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-05-03virtio-9p: Create a syntactic shortcut for the file-system pass-thruGautham R Shenoy
Currently the commandline to create a virtual-filesystem pass-through between the guest and the host is as follows: #qemu -fsdev fstype,id=ID,path=path/to/share \ -device virtio-9p-pci,fsdev=ID,mount_tag=tag \ This patch provides a syntactic short-cut to achieve the same as follows: #qemu -virtfs fstype,path=path/to/share,mount_tag=tag This will be internally expanded as: #qemu -fsdev fstype,id=tag,path=path/to/share, \ -device virtio-9p-pci,fsdev=tag,mount_tag=tag \ Signed-off-by: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-05-03virtio-9p: Create a commandline option -fsdevGautham R Shenoy
This patch creates a new command line option named -fsdev to hold any file system specific information. The option will currently hold the following attributes: -fsdev fstype id=id,path=path_to_share where fstype: Type of the file system. id: Identifier used to refer to this fsdev path: The path on the host that is identified by this fsdev. [aneesh.kumar@linux.vnet.ibm.com: Abstraction using FsContext] Signed-off-by: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-04-26chardev: Document mux optionJan Kiszka
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-04-01tap: add vhost/vhostfd optionsMichael S. Tsirkin
This adds vhost binary option to tap, to enable vhost net accelerator. Default is off for now, we'll be able to make default on long term when we know it's stable. vhostfd option can be used by management, to pass in the fd. Assigning vhostfd implies vhost=on. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-29Refactor target specific handling, compile vl.c only onceBlue Swirl
Move target specific functions and RAM handling to arch_init.c. Add a flag to QEMUOptions structure to indicate for which architectures the option is allowed, check the flag in run time and remove conditional code in option handling. Now that no target dependencies remain, compile vl.c only once for all targets. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-27qemu-options.hx: fix a typoAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-18Fix manpage errorsBlue Swirl
Split long unbreakable lines to smaller sections. Spotted by Debian Lintian tool: http://lintian.debian.org/full/pkg-qemu-devel@lists.alioth.debian.org.html#qemu Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-04Add option to use file backed guest memoryMarcelo Tosatti
Port qemu-kvm's -mem-path and -mem-prealloc options. These are useful for backing guest memory with huge pages via hugetlbfs. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> CC: john cooper <john.cooper@redhat.com>
2010-02-27Fix qemu -net user,hostfwd= exampleAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-02-10Documentation: Add command line options to function indexStefan Weil
* Add line options to function index. * Add description for -set (TODO). * Add description for -global (TODO). Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-02-08vl.c: avoid preprocessor directives in a printf callPaolo Bonzini
Similar to the qemu-img.c patch, but I also have to unescape remaining % signs in qemu-options.hx. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
2010-02-08do not interpolate % from vl.c to qemu-options.hPaolo Bonzini
Since qemu-options.h is only used in vl.c, we can avoid using brittle interpolation from a generated file. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
2010-02-03qdev: update help on -deviceMarkus Armbruster
While there, use "property" rather than "option", for consistency with -global. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-01-26Documentation: Add missing texi description for command line optionsStefan Weil
Some more command line options had entries for command line help, but documentation for texi and derived formats (man, html, info) was missing. For conditional options, the texi documentation was added unconditionally. This seems reasonable because typically man pages are shared, and html users expect to see one documentation (not several nearly identical documents for the different systems). Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-01-26Documentation: Improve command line help for -device optionStefan Weil
* Fix column for help text. * Give some more help, especially for the new '?' parameters. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-01-24Load global config files by defaultAnthony Liguori
A new option, -nodefconfig is introduced to prevent loading from the default config location. Otherwise, two configuration files will be searched for, qemu.conf and target-<TARGET_NAME>.conf. To ensure that the default configuration is overridden by a user specified config, we introduce a two stage option parsing mechanism. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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