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2010-07-13qemu-options: add documentation for stdio signal=on|offAurelien Jarno1-4/+8
Commit 5989020bc11f8ba448d6fb79f4562f882a693d89 introduced a chardev option to disable signals on stdio. Add the corresponding documentation. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-02-27Fix qemu -net user,hostfwd= exampleAurelien Jarno1-1/+1
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> (cherry picked from commit aa375206189b7de7c23ad9de66413fb7d4497940)
2010-01-20Documentation: Add missing documentation for qdev related command line optionsStefan Weil1-4/+21
The command line options -device, -nodefaults, -readconfig, -writeconfig had entries for command line help, but documentation for texi and derived formats (man, html, info) was missing. This also required moving "@end table" to the end of qemu-options.hx again. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> (cherry picked from commit 3dbf2c7fc5682827be6fa436362fb5db221bd210)
2009-12-30Add missing newline at the end of options listMichael Tokarev1-1/+1
In qemu-kvm this place looks even more "interesting": -runas user Change to user id user just before starting the VM. -readconfig <file> -writeconfig <file> read/write config file-no-kvm disable KVM hardware virtualization -no-kvm-irqchip disable KVM kernel mode PIC/IOAPIC/LAPIC -no-kvm-pit disable KVM kernel mode PIT Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> (cherry picked from commit 19e65b47f60c68d7e8c96aa0a36223c5a0d3422b)
2009-12-12add -qmp convinience switchGerd Hoffmann1-0/+2
Acts like -monitor but switched into qmp mode. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> (cherry picked from commit 6ca5582d4f06d8ff0c646b8fe3cfe721dc573597)
2009-12-12add new -mon switchGerd Hoffmann1-0/+7
Add -mon switch which maps pretty straight forward into the QemuOpts internal representation: -mon chardev=<name>[,mode=[control|readline]][,[no]default] Via config file: [mon] chardev = "<name>" mode = "readline" default = "on" Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> (cherry picked from commit 22a0e04b9bb5a02e13b3e5cf5ea8abfac5f34120)
2009-12-12default devices: add global cmd line option.Gerd Hoffmann1-0/+5
Add global command line option to disable default devices. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> (cherry picked from commit d8c208dd8a038d24ba4890156101bc679a8c8fef)
2009-12-12Revert "monitor: Command-line flag to enable control mode"Gerd Hoffmann1-3/+2
This reverts commit adcb181afe5a951c521411c7a8e9d9b791aa6742. Conflicts: monitor.h Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> (cherry picked from commit 4e307fc883b39c89ffc093c79eb9c9735724d227)
2009-12-12qdev: add command line option to set global defaults for properties.Gerd Hoffmann1-0/+3
This patch adds infrastructure and command line option for setting global defaults for device properties, i.e. you can for example use -global virtio-blk-pci.vectors=0 to turn off msi by default for all virtio block devices. The config file syntax is: [global] driver = "virtio-blk-pci" property = "vectors" value = "0" This can also be used to set properties for devices which are not created via -device but implicitly via machine init, i.e. -global isa-fdc,driveA=<name> This patch uses the mechanism which configures properties for the compatibility machine types (pc-0.10 & friends). The command line takes precedence over the machine type values. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> (cherry picked from commit d0fef6fbea36c62d29f3e3fa2214b7b52322983e)
2009-12-03monitor: Command-line flag to enable control modeLuiz Capitulino1-2/+3
This commit adds a flag called 'control' to the '-monitor' command-line option. This flag enables control mode. The syntax is: qemu [...] -monitor control,<device> Where <device> is a chardev (excluding 'vc', for obvious reasons). For example: $ qemu [...] -monitor control,tcp:localhost:4444,server Will run QEMU in control mode, waiting for a client TCP connection on localhost port 4444. NOTE: I've tried using QemuOpts for this, but turns out that it will try to parse the device part, which should be untouched. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09QemuOpts: command line switches for the config file.Gerd Hoffmann1-0/+5
Adds -readconfig and -writeconfig command line switches to read/write QemuOpts from config file. In theory you should be able to do: qemu < machine config cmd line switches here > -writeconfig vm.cfg qemu -readconfig vm.cfg In practice it will not work. Not all command line switches are converted to QemuOpts, so you'll have to keep the not-yet converted ones on the second line. Also there might be bugs lurking which prevent even the converted ones from working correctly. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09Documentation: Add documentation for -chardevMatthew Booth1-4/+230
Adds documentation for all -chardev backends. Signed-off-by: Matthew Booth <mbooth@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27net: add a vnet_hdr=on|off parameterMark McLoughlin1-1/+3
This allows people to disable the IFF_VNET_HDR flag, e.g. for debugging purposes or if they know they may migrate the guest to a machine without IFF_VNET_HDR support. It also allows making the lack of IFF_VNET_HDR support an error condition, e.g. in the case where a guest is being migrated from a host which does support it. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27net: import linux tap ioctl definitionsMark McLoughlin1-7/+1
Making features dependent on the availability of newer versions if_tun.h is going to get seriously clumsy, so let's just import the definitions we need. It's only a small handful. If and when we're comfortable depending on 2.6.30 headers, we can remove this again. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-15Documentation: Move msmouse description to an appropriate placeKevin Wolf1-2/+2
Putting it right in the middle of the explanation for "-serial udp" probably wasn't the best idea. Patchworks-ID: 35603 Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-15Documentation: Add missing tags to placeholdersKevin Wolf1-21/+22
Not all placeholders in options descriptions had the @var tag on them. Add the tag so that it's clearly visible that they are placeholders. Patchworks-ID: 35602 Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-15Documentation: Highlight placeholders in suboptionsKevin Wolf1-9/+9
Currently, suboptions (i.e. something like file=file for -drive) are rendered as @code, so we're losing any @var highlighting in the man pages. Replace them by @option, so that you actually can see what is a placeholder and what is meant verbatim. Patchworks-ID: 35601 Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-15net: add -netdev optionMark McLoughlin1-0/+10
Patchworks-ID: 35506 Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-06offer right-ctrl as a grab optionDustin Kirkland1-0/+10
Add support for -ctrl-grab to use the right-ctrl button to grab/release the mouse in SDL. The multi-button ctrl-alt and ctrl-alt-shift grab buttons present an accessibility problem to users who cannot press more than one button at a time. https://bugs.edge.launchpad.net/ubuntu/+source/qemu-kvm/+bug/237635 Signed-off-by: Dustin Kirkland <kirkland@canonical.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05Enable host-clock-based RTCJan Kiszka1-4/+10
Switch RTC emulations to the new host_clock instead of vm_clock by default. This has the advantage that the emulated RTC will follow automatically the host time while it might be tuned via NTP. vm_clock can still be selected by passing '-rtc clock=vm' on the command line. Note that some RTC emulations (at least M48T59) already use the host time unconditionally while others (namely MC146818) do not. This patch introduces the required infrastructure for selecting the base clock but only converts MC146818 for now. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05Refactor RTC command line switchesJan Kiszka1-22/+25
Deprecate -localtime, -setdate and -rtc-td-hack in favor of a new unified command line switch: -rtc [base=utc|localtime|date][,driftfix=none|slew] Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11switch chardev to QemuOpts: infrastructure, null deviceGerd Hoffmann1-0/+2
start switching chardevs to QemuOpts. This patch adds the infrastructure and converts the null device. The patch brings two new functions: qemu_chr_open_opts() same as qemu_chr_open(), but uses QemuOpts instead of a option char string. qemu_chr_parse_compat() accepts a traditional chardev option string, returns the corresponding QemuOpts instance, to handle backward compatibility. The patch also adds a new -chardev switch which can be used to create named+unconnected chardevs, like this: -chardev null,id=test This uses the new qemu_chr_open_opts. Thus with this patch alone only the null device works. The other devices will follow ... Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-04add documentation for multi-core featuresAndre Przywara1-3/+11
extend QEMU's internal help and man page to cover the recently added multi-core feature. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27raw-posix: add Linux native AIO supportChristoph Hellwig1-1/+3
Now that do have a nicer interface to work against we can add Linux native AIO support. It's an extremly thing layer just setting up an iocb for the io_submit system call in the submission path, and registering an eventfd with the qemu poll handler to do complete the iocbs directly from there. This started out based on Anthony's earlier AIO patch, but after estimated 42,000 rewrites and just as many build system changes there's not much left of it. To enable native kernel aio use the aio=native sub-command on the drive command line. I have also added an option to qemu-io to test the aio support without needing a guest. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-24Make the e1000 the default network adapter for the pc target.Anthony Liguori1-1/+1
The ne2k is an ancient card that performs pretty terribly under QEMU. In many modern OSes, there is no longer drivers available for the ne2k. Switch the default network adapter to e1000. This card is more widely suppported and performs rather well under QEMU. There may be very old OSes that had a ne2k driver but not an e1000 driver but I think this is likely the exception. I think the average user is better served with an e1000 vs ne2k. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-24Unbreak large mem support by removing kqemuAnthony Liguori1-19/+0
kqemu introduces a number of restrictions on the i386 target. The worst is that it prevents large memory from working in the default build. Furthermore, kqemu is fundamentally flawed in a number of ways. It relies on the TSC as a time source which will not be reliable on a multiple processor system in userspace. Since most modern processors are multicore, this severely limits the utility of kqemu. kvm is a viable alternative for people looking to accelerate qemu and has the benefit of being supported by the upstream Linux kernel. If someone can implement work arounds to remove the restrictions introduced by kqemu, I'm happy to avoid and/or revert this patch. N.B. kqemu will still function in the 0.11 series but this patch removes it from the 0.12 series. Paul, please Ack or Nack this patch. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-10QemuOpts: add -set optionGerd Hoffmann1-1/+5
One use case will be file for drives (no filename quoting issues), i.e. -drive id=test,if=virtio -set drive.test.file=/vmdisk/test-virtio.img It will work for any other option (assuming handled by QemuOpts) though. Except for id= for obvious reasons ;). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Message-Id:
2009-07-27Introduce -smp , maxcpus= flag to specify maximum number of CPUS.Jes Sorensen1-1/+4
Follow on patch will use it to determine the size of the MADT and other BIOS tables. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27qdev: add -device command line option.Gerd Hoffmann1-0/+2
The -device switch is the users frontend to the qdev_device_add function added by the previous patch. Also adds a linked list where command line options can be saved. Use it for the new -device and for the -usbdevice and -bt switches. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-16Update boot option documentationJan Kiszka1-4/+23
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-09Disable kqemu by default at run timeAnthony Liguori1-4/+4
-no-kqemu -> -enable-kqemu kqemu is still present at compile time by default Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-09Allow setting qemu process name v2Andi Kleen1-1/+3
Set the Linux process name to the name argument specified with name. I find this useful to see which guests are taking CPU time in top. This doesn't affect ps, which checks argv[0], but rewriting the environment uses much more code, so I only used this simple way. v2: Use separate process= argument, no prefixes. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-09qcow2: Make cache=writethrough defaultKevin Wolf1-3/+1
The performance of qcow2 has improved meanwhile, so we don't need to special-case it any more. Switch the default to write-through caching like all other block drivers. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-09net: set a default value for sndbuf=Mark McLoughlin1-1/+2
On reflection, perhaps it does make sense to set a default value for the sndbuf= tap parameter. For best effect, sndbuf= should be set to just below the capacity of the physical NIC. Setting it higher will cause packets to be dropped before the limit is hit. Setting it much lower will not cause any problems unless you set it low enough such that the guest cannot queue up new packets before the NIC has emptied its queue. In Linux, txqueuelen=1000 by default for ethernet NICs. Given a 1500 byte MTU, 1Mb is a good choice for sndbuf. If it turns out that txqueuelen is actually much lower than this, then sndbuf is essentially disabled. In the event that txqueuelen is much higher, it's unlikely that the NIC will be able to empty a 1Mb queue. Thanks to Herbert Xu for this logic. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Cc: Herbert Xu <herbert.xu@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-29Replace -no-virtio-balloon by -balloonMarkus Armbruster1-4/+9
We want to do (at least) two things to the virtio-balloon device: suppress it, and control its PCI address. Option -no-virtio-balloon lets us do only the former. To get the latter, replace -no-virtio-balloon with -balloon none disable balloon device -balloon virtio[,addr=str] enable virtio balloon device (default) Syntax suggested by Anthony Liguori. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-29Add documentation for MultibootAlexander Graf1-4/+13
The documentation shows how to use -kernel and friends for booting Linux, but obviously knows nothing about multiboot yet. Let's include some documentation for multiboot, so people know how to fully exploit this cool new feature. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-29slirp: Bind support for host forwarding rulesJan Kiszka1-5/+6
Extend the hostfwd rule format so that the user can specify on which host interface qemu should listen for incoming connections. If omitted, binding will takes place against all interfaces. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-29slirp: Rework external configuration interfaceJan Kiszka1-18/+34
With the internal IP configuration made more flexible, we can now enhance the user interface. This patch adds a number of new options to "-net user": net (address and mask), host, dhcpstart, dns and smbserver. It also renames "redir" to "hostfwd" and "channel" to "guestfwd" in order to (hopefully) clarify their meanings. The format of guestfwd is extended so that the user can define not only the port but also the virtual server's IP address the forwarding starts from. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-29slirp: Move smb, redir, tftp and bootp parameters and -net channelJan Kiszka1-98/+111
So far a couple of slirp-related parameters were expressed via stand-alone command line options. This it inconsistent and unintuitive. Moreover, it prevents both dynamically reconfigured (host_net_add/ delete) and multi-instance slirp. This patch refactors the configuration by turning -smb, -redir, -tftp and -bootp as well as -net channel into options of "-net user". The old stand-alone command line options are still processed, but no longer advertised. This allows smooth migration of management applications to to the new syntax and also the extension of that syntax later in this series. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-24qemu/net: flag to control the number of vectors a nic hasMichael S. Tsirkin1-6/+8
Add an option to specify the number of MSI-X vectors for PCI NIC cards. This can also be used to disable MSI-X, for compatibility with old qemu. This option currently only affects virtio cards. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-22net: add '-net tap,sndbuf=nbytes'Mark McLoughlin1-1/+8
2.6.30 adds a new TUNSETSNDBUF ioctl() which allows a send buffer limit for the tap device to be specified. When this limit is reached, a tap write() will return EAGAIN and poll() will indicate the fd isn't writable. This allows people to tune their setups so as to avoid e.g. UDP packet loss when the sending application in the guest out-runs the NIC in the host. There is no obviously sensible default setting - a suitable value depends mostly on the capabilities of the physical NIC through which the packets are being sent. Also, note that when using a bridge with netfilter enabled, we currently never get EAGAIN because netfilter causes the packet to be immediately orphaned. Set /proc/sys/net/bridge/bridge nf-call-iptables to zero to disable this behaviour. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-22Support addr=... in option argument of -drive if=virtioMarkus Armbruster1-0/+3
Make drive_init() accept addr=, put the value into struct DriveInfo. Use it in all the places that create virtio-blk-pci devices: pc_init1(), bamboo_init(), mpc8544ds_init(). Don't support addr= in third argument of monitor command pci_add and second argument of drive_add, because that clashes with their first arguments. Admittedly unelegant. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-22Support addr=... in option argument of -net nicMarkus Armbruster1-3/+4
Make net_client_init() accept addr=, put the value into struct NICinfo. Use it in pci_nic_init(), and remove arguments bus and devfn. Don't support addr= in third argument of monitor command pci_add, because that clashes with its first argument. Admittedly unelegant. Machines "malta" and "r2d" have a default NIC with a well-known PCI address. Deal with that the same way as the NIC model: make pci_nic_init() take an optional default to be used when the user doesn't specify one. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-13Add -no-virtio-balloon command-line optionEduardo Habkost1-0/+9
This new option may be used to disable the virtio-balloon device. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-09Fix Sparse warningBlue Swirl1-1/+1
Fix this warning: ./qemu-options.h:198:1: error: expected preprocessor identifier Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-05-04qemu-options.hx: fix description of cache=none suboptionAurelien Jarno1-1/+1
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-05-01Hardware watchdogRichard W.M. Jones1-0/+49
Here is an updated hardware watchdog patch, which should fix everything that was raised about the previous version ... Signed-off-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-04-22xen: add -vga xenfb option, configure xenfb (Gerd Hoffmann)aliguori1-1/+1
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@7228 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-22xen: groundwork for xen support (Gerd Hoffmann)aliguori1-0/+11
- configure script and build system changes. - wind up new machine type. - add -xen-* command line options. 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@7219 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-21added -numa cmdline parameter parser (Andre Przywara)aliguori1-0/+8
adds a -numa command line parameter and sets a QEMU global array with the memory sizes. The CPU-to-node assignemnt is written into the CPUState. If no specific values for memory and CPUs are given, all resources will be split equally across all nodes. This code currently support only up to 64 virtual CPUs. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7210 c046a42c-6fe2-441c-8c8c-71466251a162
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