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2012-02-09iSCSI: add configuration variables for iSCSIRonnie Sahlberg
This patch adds configuration variables for iSCSI to set initiator-name to use when logging in to the target, which type of header-digest to negotiate with the target and username and password for CHAP authentication. This allows specifying a initiator-name either from the command line -iscsi initiator-name=iqn.2004-01.com.example:test or from a configuration file included with -readconfig [iscsi] initiator-name = iqn.2004-01.com.example:test header-digest = CRC32C|CRC32C-NONE|NONE-CRC32C|NONE user = CHAP username password = CHAP password If you use several different targets, you can also configure this on a per target basis by using a group name: [iscsi "iqn.target.name"] ... The configuration file can be read using -readconfig. Example : qemu-system-i386 -drive file=iscsi://127.0.0.1/iqn.ronnie.test/1 -readconfig iscsi.conf Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-02-08Merge remote-tracking branch 'aneesh/for-upstream' into stagingAnthony Liguori
* aneesh/for-upstream: hw/9pfs: Remove O_NOATIME flag from 9pfs open() calls in readonly mode hw/9pfs: Update MAINTAINERS file fsdev: Fix parameter parsing for proxy helper hw/9pfs: Fix crash when mounting with synthfs hw/9pfs: Preserve S_ISGID hw/9pfs: Add new security model mapped-file.
2012-02-01Add support for net bridgeCorey Bryant
The most common use of -net tap is to connect a tap device to a bridge. This requires the use of a script and running qemu as root in order to allocate a tap device to pass to the script. This model is great for portability and flexibility but it's incredibly difficult to eliminate the need to run qemu as root. The only really viable mechanism is to use tunctl to create a tap device, attach it to a bridge as root, and then hand that tap device to qemu. The problem with this mechanism is that it requires administrator intervention whenever a user wants to create a guest. By essentially writing a helper that implements the most common qemu-ifup script that can be safely given cap_net_admin, we can dramatically simplify things for non-privileged users. We still support existing -net tap options as a mechanism for advanced users and backwards compatibility. Currently, this is very Linux centric but there's really no reason why it couldn't be extended for other Unixes. A typical invocation would be similar to one of the following: qemu linux.img -net bridge -net nic,model=virtio qemu linux.img -net tap,helper="/usr/local/libexec/qemu-bridge-helper" -net nic,model=virtio qemu linux.img -netdev bridge,id=hn0 -device virtio-net-pci,netdev=hn0,id=nic1 qemu linux.img -netdev tap,helper="/usr/local/libexec/qemu-bridge-helper",id=hn0 -device virtio-net-pci,netdev=hn0,id=nic1 The default bridge that we attach to is br0. The thinking is that a distro could preconfigure such an interface to allow out-of-the-box bridged networking. Alternatively, if a user wants to use a different bridge, a typical invocation would be simliar to one of the following: qemu linux.img -net bridge,br=qemubr0 -net nic,model=virtio qemu linux.img -net tap,helper="/usr/local/libexec/qemu-bridge-helper --br=qemubr0" -net nic,model=virtio qemu linux.img -netdev bridge,br=qemubr0,id=hn0 -device virtio-net-pci,netdev=hn0,id=nic1 qemu linux.img -netdev tap,helper="/usr/local/libexec/qemu-bridge-helper --br=qemubr0",id=hn0 -device virtio-net-pci,netdev=hn0,id=nic1 Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Richa Marwaha <rmarwah@linux.vnet.ibm.com> Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-19kvm: Activate in-kernel irqchip supportJan Kiszka
Make the basic in-kernel irqchip support selectable via -machine ...,kernel_irqchip=on. Leave it off by default until it can fully replace user space models. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
2012-01-19hw/9pfs: Add new security model mapped-file.Aneesh Kumar K.V
This enable us to do passthrough equivalent security model on NFS directory. NFS server mostly do root squashing and don't support xattr. Hence we cannot use 'passthrough' or 'mapped' security model Also added "mapped-xattr" security to indicate earlier "mapped" security model Older name is still supported. POSIX rules regarding ctime update on chmod are not followed by this security model. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
2012-01-12Support for UDP unicast network backendBenjamin
Signed-off-by: Benjamin MARSILI <mlspirat42@gmail.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-06Merge remote-tracking branch 'stefanha/trivial-patches' into stagingAnthony Liguori
* stefanha/trivial-patches: qemu-nbd: drop loop which can never loop Make python mandatory net/socket.c: Fix fd leak in net_socket_listen_init() error paths gdbstub: Fix fd leak in gdbserver_open() error path configure: Fix test for supported host CPU type configure: CONFIG_QEMU_INTERP_PREFIX only for user mode scsi virtio-blk usb-msd: Clean up device init error messages Strip trailing '\n' from error_report()'s first argument (again) qemu-options.hx: fix tls-channel help text
2012-01-06qemu-options.hx: fix tls-channel help textAlon Levy
Remove the default compiled out tunnel channel, add the always available cursor channel. Optimally the man page would depend on compiled in options, but that's harder to do. RHBZ: 688586 Acked-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-01-04hw/9pfs: Add support to use named socket for proxy FSM. Mohan Kumar
Add option to use named socket for communicating between proxy helper and qemu proxy FS. Access to socket can be given by using command line options -u and -g. Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
2012-01-04hw/9pfs: Documentation changes related to proxy fsM. Mohan Kumar
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
2011-12-19Documentation: Move balloon option out of i386 only sectionMichael Ellerman
The balloon option is not i386 only, so move it into the standard options section. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-12-19vl.c: In qemu -h output, only print options for the arch we are running asMichael Ellerman
Only print options in the help output that are accepted by our arch. This is less confusing for users and also for other programs that consume the help output. The options affected are: -g and -prom-env only displayed on PPC or SPARC -win2k-hack, -rtc-td-hack, -no-fd-bootchk, -no-acpi, -no-hpet, -acpitable, -smbios only displayed on i386 -semihosting only displayed on ARM, M68K or XTENSA -old-param only displayed on ARM Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-12-14Fix spelling in comments, documentation and messagesStefan Weil
accidently->accidentally annother->another choosen->chosen consideres->considers decriptor->descriptor developement->development paramter->parameter preceed->precede preceeding->preceding priviledge->privilege propogation->propagation substraction->subtraction throught->through upto->up to usefull->useful Fix also grammar in posix-aio-compat.c Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-12-05block: add -drive copy-on-read=on|offStefan Hajnoczi
This patch adds the -drive copy-on-read=on|off command-line option: copy-on-read=on|off copy-on-read is "on" or "off" and enables whether to copy read backing file sectors into the image file. Copy-on-read avoids accessing the same backing file sectors repeatedly and is useful when the backing file is over a slow network. By default copy-on-read is off. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-12-05block: add the blockio limits command line supportZhi Yong Wu
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-31Merge remote-tracking branch 'kwolf/for-anthony' into stagingAnthony Liguori
Conflicts: block/vmdk.c
2011-10-31hw/9pfs: Add synthetic file system support using 9pAneesh Kumar K.V
This patch create a synthetic file system with mount tag v_synth when -virtfs_synth command line option is specified in qemu. The synthetic file system can be mounted in guest using 9p using the below command line mount -t 9p -oversion=9p2000.L,trans=virtio v_synth <mountpint> Synthetic file system enabled different qemu subsystem to register callbacks for read and write events from guest. The subsystem can create directories and files in the synthetic file system as show in ex below qemu_v9fs_synth_mkdir(NULL, 0777, "test2", &node); qemu_v9fs_synth_add_file(node, 0777, "testfile", my_test_read, NULL, NULL); Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
2011-10-31hw/9pfs: Read-only support for 9p exportM. Mohan Kumar
A new fsdev parameter "readonly" is introduced to control accessing 9p export. "readonly" can be used to specify the access type. By default "rw" access is given to 9p export. Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
2011-10-28Documentation: Add syntax for using sheepdog devicesRonnie Sahlberg
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-28Documentation: Describe NBD URL syntaxRonnie Sahlberg
This patch adds a short description of how to specify a NBD device to QEMU. Syntax for both TCP and Unix Domain Sockets are provided as well as examples. Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-28Documentation: Add iSCSI sectionRonnie Sahlberg
Add new section for device URL syntax for special files and describe the iSCSI URL with examples Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-20Merge remote-tracking branch 'aneesh/for-upstream-6' into stagingAnthony Liguori
Conflicts: trace-events
2011-10-15hw/9pfs: Handle Security model parsingM. Mohan Kumar
Except local fs driver all other fs drivers (handle, synth) don't need security model. Update fsdev parameter parsing accordingly. Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
2011-10-15qemu-options.hx: Update virtfs command documentationAneesh Kumar K.V
Clarify the virtfs option better Updates from:Sripathi Kodi <sripathik@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
2011-10-14qemu-options: avoid #if in spicevmc texi helpStefan Hajnoczi
Preprocessor directives cannot be used in STEXI/ETEXI sections since they are not passed through the preprocessor. The spicevmc chardev option help currently uses #if, which is included verbatim in the man page output. Fix this by simply stating that spicevmc chardevs are available only in builds with spice support. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-10-12hw/9pfs: Add new virtfs option writeout=immediate skip host page cacheAneesh Kumar K.V
writeout=immediate implies the after pwritev we do a sync_file_range. Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
2011-09-10target-xtensa: implement SIMCALLMax Filippov
Tensilica iss provides support for applications running in freestanding environment through SIMCALL command. It is used by Tensilica libc to access argc/argv, for file I/O, etc. Note that simcalls that accept buffer addresses expect virtual addresses. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-09-09qemu-options: Improve help texts for options which depend on configureStefan Weil
* Replace "available only" by the more common "only available". * Tracing options depend on the configuration of the QEMU executable, so clarify the help text for both options. Cc: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-09-03Allow overriding the location of Samba's smbd.Brad
Allow overriding the location of Samba's smbd. Pretty much every OS I look at has some means of changing this path (patching) so lets just make it easier for OS developers creating packages and/or end users to override the location. Signed-off-by: Brad Smith <brad@comstyle.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-09-01trace: [stderr] add support for dynamically enabling/disabling eventsLluís
Uses the generic interface provided in "trace/control.h" in order to provide a programmatic interface as well as command line and monitor controls. Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
2011-09-01trace: add "-trace events" argument to control initial stateLluís
The "-trace events" argument can be used to provide a file with a list of trace event names that will be enabled prior to starting execution, thus providing early tracing. This saves the user from manually toggling event states through the monitor interface or whichever backend-specific interface. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
2011-09-01trace: avoid conditional code compilation during option parsingLluís
A default implementation for backend-specific routines is provided in "trace/default.c", which backends can override by setting "trace_default=no" in "configure". Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
2011-09-01trace: [configure] rename CONFIG_*_TRACE into CONFIG_TRACE_*Lluís
Provides a more hierarchical view of the variable domain. Also adds the CONFIG_TRACE_* variables for all backends. [Stefan added missing 'test' in stap if statement] Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-08-23block: add cache=directsync parameter to -driveStefan Hajnoczi
This patch adds -drive cache=directsync for O_DIRECT | O_SYNC host file I/O with no disk write cache presented to the guest. This mode is useful when guests may not be sending flushes when appropriate and therefore leave data at risk in case of power failure. When cache=directsync is used, write operations are only completed to the guest when data is safely on disk. This new mode is like cache=writethrough but it bypasses the host page cache. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-07-30revamp acpitable parsing and allow to specify complete (headerful) tableMichael Tokarev
This patch almost rewrites acpi_table_add() function (but still leaves it using old get_param_value() interface). The result is that it's now possible to specify whole table (together with a header) in an external file, instead of just data portion, with a new file= parameter, but at the same time it's still possible to specify header fields as before. Now with the checkpatch.pl formatting fixes, thanks to Stefan Hajnoczi for suggestions, with changes from Isaku Yamahata, and with my further refinements. Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Cc: Isaku Yamahata <yamahata@valinux.co.jp> Cc: John Baboval <john.baboval@virtualcomputer.com> Cc: Blue Swirl <blauwirbel@gmail.com> [yamahata@valinux.co.jp: fix compile error, comment fallthrough] Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-07-29showing a splash picture when startwayne
Added options to let qemu transfer two configuration files to bios: "bootsplash.bmp" and "etc/boot-menu-wait", which could be specified by command -boot splash=P,splash-time=T P is jpg/bmp file name or an absolute path, T have a max value of 0xffff, unit is ms. With these two options, if user invoke qemu with menu=on option, then a splash picture would be showed in a given time. For example: qemu -boot menu=on,splash=/root/boot.bmp,splash-time=5000 would make boot.bmp shown as a brand with 5 seconds in the booting up process. This feature need the new seabios's support, which could be got from git. Signed-off-by: Wayne Xia <xiawenc@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-23slirp: Canonicalize restrict syntaxJan Kiszka
All other boolean arguments accept on|off - except for slirp's restrict. Fix that while still accepting the formerly allowed yes|y|no|n, but reject everything else. This avoids accidentally allowing external connections because syntax errors were so far interpreted as 'restrict=no'. CC: Gleb Natapov <gleb@redhat.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-23Deprecate -M command line optionsJan Kiszka
Superseded by -machine. Therefore, this patch removes -M from the help list and pushes -machine at the same place in the output. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-23Generalize -machine command line optionJan Kiszka
-machine somehow suggests that it selects the machine, but it doesn't. Fix that before this command is set in stone. Actually, -machine should supersede -M and allow to introduce arbitrary per-machine options to the command line. That will change the internal realization again, but we will be able to keep the user interface stable. Tested-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-19qemu-options.hx: Document missing -drive optionsLuiz Capitulino
They are 'werror', 'rerror' and 'readonly'. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-07-04pxa2xx_lcd: add proper rotation supportVasily Khoruzhick
Until now, pxa2xx_lcd only supported 90deg rotation, but some machines (for example Zipit Z2) needs 270deg rotation. Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
2011-06-15Command line support for altering the log file locationMatthew Fernandez
Add command line support for logging to a location other than /tmp/qemu.log. With logging enabled (command line option -d), the log is written to the hard-coded path /tmp/qemu.log. This patch adds support for writing the log to a different location by passing the -D option. Signed-off-by: Matthew Fernandez <matthew.fernandez@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-10doc: Minor typo fix.Brad Hards
Thanks to agraf_, stefanha and Snader_LB for their IRC assistance. Thanks to Markus Armbruster and Alexander Graf (again) for their assistance with the second version of this patch. No patch is too simple to test... Signed-off-by: Brad Hards <bradh@frogmouth.net> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-06-06spice: add SASL supportMarc-André Lureau
Turn on SASL support by appending "sasl" to the spice arguments, which requires that the client use SASL to authenticate with the spice. The exact choice of authentication method used is controlled from the system / user's SASL configuration file for the 'qemu' service. This is typically found in /etc/sasl2/qemu.conf. If running QEMU as an unprivileged user, an environment variable SASL_CONF_PATH can be used to make it search alternate locations for the service config. While some SASL auth methods can also provide data encryption (eg GSSAPI), it is recommended that SASL always be combined with the 'tls' and 'x509' settings to enable use of SSL and server certificates. This ensures a data encryption preventing compromise of authentication credentials. It requires support from spice 0.8.1. [ kraxel: moved spell fix to separate commit ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-06-06spice: add option for disabling copy paste supportHans de Goede
Some people want to be able disable spice's guest <-> client copy paste support because of security considerations. [ kraxel: drop old-version error message ]
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>