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2012-01-26docs: describe live block operationsMarcelo Tosatti
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-01-13Spelling fixes in comments and documentationStefan Weil
Codespell detected these new spelling issues. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-12-19Merge remote-tracking branch 'qemu-kvm/memory/mutators' into stagingAnthony Liguori
Conflicts: memory.h
2011-12-15qcow2: Allow >4 GB VM stateKevin Wolf
This is a compatible extension to the snapshot header format that allows saving a 64 bit VM state size. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-12-14Merge remote-tracking branch 'stefanha/trivial-patches-next' into stagingAnthony Liguori
2011-12-07docs: document memory API interaction with migrationAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-12-06docs: Add writing-qmp-commands.txtLuiz Capitulino
Explains how to write QMP commands using the QAPI. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-06memory: minor documentation fixes/enhancementsAdemar de Souza Reis Jr
Fix typos and minor documentation errors in both memory.h and docs/memory.txt. Also add missing documentation formatting tags to transaction functions. Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Ademar de Souza Reis Jr <areis@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-11-17Fixing some spelling in docs/libcacard.txtMatthias Brugger
Reviewed-by: Alon Levy <alevy@redhat.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-11-17Fix some spelling bugs in documentation and commentsStefan Weil
These errors were detected by codespell: remaing -> remaining soley -> solely virutal -> virtual seperate -> separate libcacard.txt still needs some more patches. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-11-17Fix spelling in documentation and comments (similiar -> similar)Stefan Weil
This bug was detected by codespell. In mips_mipssim.c a grammatical error was fixed, too. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-11-01Merge remote-tracking branch 'stefanha/tracing' into stagingAnthony Liguori
2011-11-01trace: Add wildcard trace event supportMark Wu
A basic wildcard matching is supported in both the monitor command "trace-event" and the events list file. That means you can enable/disable the events having a common prefix in a batch. For example, virtio-blk trace events could be enabled using: trace-event virtio_blk_* on Signed-off-by: Mark Wu <wudxw@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-11-01qapi: fix typos in documentation JSON examplesStefan Hajnoczi
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-10-28qcow2: fix some errors and typo in qcow2.txtZhi Yong Wu
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-21trace: Update docs to use example events that existLluís Vilanova
The events 'qemu_malloc' and 'qemu_free' used in the examples no longer exist, so use 'qemu_vmalloc' and 'qemu_vfree' instead. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-09-21trace: allow trace events with string argumentsStefan Hajnoczi
String arguments are useful for producing human-readable traces without post-processing (e.g. stderr backend). Although the simple backend cannot handles strings all others can. Strings should be allowed and the simple backend can be extended to support them. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-09-17trace: allow PRI*64 at beginning and ending of format stringStefan Hajnoczi
The tracetool parser only picks up PRI*64 and other format string macros when enclosed between double quoted strings. Lift this restriction by extracting everything after the closing ')' as the format string: cpu_set_apic_base(uint64_t val) "%016"PRIx64 ^^ ^^ One trick here: it turns out that backslashes in the format string like "\n" were being interpreted by echo(1). Fix this by using the POSIX printf(1) command instead. Although it normally does not make sense to include backslashes in trace event format strings, an injected newline causes tracetool to emit a broken header file and I want to eliminate cases where broken output is emitted, even if the input was bad. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-09-09docs: Fix qdev-device-use.txt typo in -chardev serial, path=COM<NUM>Markus Armbruster
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-09-02Merge remote-tracking branch 'stefanha/tracing' into stagingAnthony Liguori
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: [simple] disable all trace points by defaultLluís
Note that this refers to the backend-specific state (whether the output must be generated), not the event "disabled" property (which always uses the "nop" backend). Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
2011-09-01trace: always use the "nop" backend on events with the "disable" keywordLluís
Any event with the keyword/property "disable" generates an empty trace event using the "nop" backend, regardless of the current backend. 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: always compile support for controlling and querying trace event statesLluís
The current interface is generic for this small set of operations, and thus other backends can easily modify the "trace/control.c" file to add their own implementation. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
2011-09-01trace: generalize the "property" concept in the trace-events fileLluís
This adds/modifies the following functions: * get_name: Get _only_ the event name * has_property: Return whether an event has a property (keyword before the event name) Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
2011-08-29Fix spelling in comments and debug messages (recieve -> receive)Stefan Weil
Signed-off-by: Stefan Weil <weil@mail.berlios.de> Reviewed-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-08-12memory: correct documentation typosAvi Kivity
Noted by Drew Jones. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-29Add memory API documentationAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-21qapi: add QAPI code generation documentationMichael Roth
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@gmail.com>
2011-07-08usb: update documentationGerd Hoffmann
Add a paragraph on companion controller mode and a configuration file which sets it all up for you. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-06-14usb: documentation updateGerd Hoffmann
Add some more informations to docs/usb2.txt about using usb2 (also usb1) devices. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-06-07docs: qdev-device-use.txt has become stale, update itMarkus Armbruster
Document more bus addresses. Update for bugs fixed. Describe where exactly the -drive options go. Update for recent split of qdev ide-drive into ide-{cd,hd}, scsi-disk into scsi-{cd,hd}. Document scsi-hd's removable property only for usb-storage, because that's where it's used. Fix description of -global isa.fdc. Document usb-storage lossage. Clean up misleading description of network device's split into guest and host part. Document -vga's machine dependence. New qdevs: virtconsole, qxl-vga, isa-vga, intel-hda, usb-ccid Update for changed pci-assign property iommu. New section "Default Devices". Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-05-26usb: add ehci adapterGerd Hoffmann
This patch finally merges the EHCI host adapter aka USB 2.0 support. Based on the ehci bits collected @ git://git.kiszka.org/qemu.git ehci EHCI has a long out-of-tree history. Project was started by Mark Burkley, with contributions by Niels de Vos. David S. Ahern continued working on it. Kevin Wolf, Jan Kiszka and Vincent Palatin contributed bugfixes. /me (Gerd Hoffmann) picked it up where it left off, prepared the code for merge, fixed a few bugs and added basic user docs. Cc: David S. Ahern <daahern@cisco.com> Cc: Jan Kiszka <jan.kiszka@web.de> Cc: Kevin Wolf <mail@kevin-wolf.de> Cc: Vincent Palatin <vincent.palatin_qemu@m4x.org> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-04-26docs/tracing.txt: minor documentation fixesLluís
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-04-26docs: Trace events must not expect pointer dereferencingStefan Hajnoczi
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-04-13docs: Describe zero data clusters in QED specificationStefan Hajnoczi
Zero data clusters are a space-efficient way of storing zeroed regions of the image. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-04-01ccid: add docsAlon Levy
Add documentation for the usb-ccid device and accompanying two card devices, ccid-card-emulated and ccid-card-passthru. Signed-off-by: Alon Levy <alevy@redhat.com>
2011-04-01libcacard: add docsRobert Relyea
2011-03-16Add qcow2 documentationKevin Wolf
This adds a description of the qcow2 file format to the docs/ directory. Besides documenting what's there, which is never wrong, the document should provide a good basis for the discussion of format extensions (called "qcow3" in previous discussions) Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-03-07simpletrace: Thread-safe tracingStefan Hajnoczi
Trace events outside the global mutex cannot be used with the simple trace backend since it is not thread-safe. There is no check to prevent them being enabled so people sometimes learn this the hard way. This patch restructures the simple trace backend with a ring buffer suitable for multiple concurrent writers. A writeout thread empties the trace buffer when threshold fill levels are reached. Should the writeout thread be unable to keep up with trace generation, records will simply be dropped. Each time events are dropped a special record is written to the trace file indicating how many events were dropped. The event ID is 0xfffffffffffffffe and its signature is dropped(uint32_t count). Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-03-06docs: Update stderr and simple backend, add systemtap backendStefan Hajnoczi
The following additions to the tracing documentation are included: 1. Move "stderr" backend documentation to top-level and out of "simple" backend. Include hints on when this backend is useful. 2. Document the "simple" backend thread-safety limitation. 3. Document the "dtrace" backend for SystemTap. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-01Add boot index documentation.Gleb Natapov
Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-01-29New trace-event backend: stderrFabien Chouteau
This backend sends trace events to standard error output during the emulation. Also add a "--list-backends" option to tracetool, so configure script can display the list of available backends. Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Acked-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-01-24docs: Document scsi-disk and usb-storage removable parameterStefan Hajnoczi
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-01-17document QEMU<->ACPIBIOS PCI hotplug interfaceMarcelo Tosatti
Document how QEMU communicates with ACPI BIOS for PCI hotplug. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-01-10docs: Document virtio PCI -device ioeventfd=on|offStefan Hajnoczi
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-12-17docs: Fix missing carets in QED specificationStefan Hajnoczi
For some reason the carets ('^') in the QED specification disappeared. This patch puts them back. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17docs: Add QED image format specificationStefan Hajnoczi
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-10-20trace: Format strings must begin/end with double quotesStefan Hajnoczi
Document the restriction that format strings must begin and end with double quotes. This is for easy parsing since we don't run cpp over trace-events. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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