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2012-04-15acpi_piix4: Re-define PCI hotplug eject register readAlex Williamson1-2/+10
The PCI hotplug eject register has always returned 0, so let's redefine it as a hotplug feature register. The existing model of using separate up & down read-only registers and an eject via write to this register becomes the base implementation. As we make use of new interfaces we'll set bits here to allow the BIOS and AML implementation to optimize for the platform implementation. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-04-15acpi_piix4: Remove PCI_RMV_BASE write codeAlex Williamson1-1/+1
Clarify this register as read-only and remove write code. No change in existing behavior. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-04-15acpi_piix4: Disallow write to up/down PCI hotplug registersAlex Williamson1-2/+2
The write side of these registers is never used and actually can't be used as defined because any read/modify/write sequence from the guest potentially races with qemu. Drop the write support and define these as read-only registers. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-04-07Replace Qemu by QEMU in internal documentationStefan Weil2-2/+2
The official spelling is QEMU. Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-03-27qapi: untangle next_listPaolo Bonzini1-2/+2
Right now, the semantics of next_list are complicated. The caller must: * call start_list * call next_list for each element *including the first* * on the first call to next_list, the second argument should point to NULL and the result is the head of the list. On subsequent calls, the second argument should point to the last node (last result of next_list) and next_list itself tacks the element at the tail of the list. This works for both input and output visitor, but having the visitor write memory when it is only reading the list is ugly. Plus, relying on *list to detect the first call is tricky and undocumented. We can initialize so->entry in next_list instead of start_list, leaving it NULL in start_list. This way next_list sees clearly whether it is on the first call---as a bonus, it discriminates the cases based on internal state of the visitor rather than external state. We can also pull the assignment of the list head from generated code up to next_list. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-03-19Merge remote-tracking branch 'sstabellini/saverestore-8' into stagingAnthony Liguori1-0/+34
* sstabellini/saverestore-8: xen: do not allocate RAM during INMIGRATE runstate xen mapcache: check if memory region has moved. xen: record physmap changes to xenstore Set runstate to INMIGRATE earlier Introduce "xen-save-devices-state" cirrus_vga: do not reset videoram Conflicts: qapi-schema.json Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-19Introduce "xen-save-devices-state"Stefano Stabellini1-0/+34
- add an "is_ram" flag to SaveStateEntry; - register_savevm_live sets is_ram for live_savevm devices; - introduce a "xen-save-devices-state" QAPI command that can be used to save the state of all devices, but not the RAM or the block devices of the VM. Changes in v8: - rename save-devices-state to xen-save-devices-state. Changes in v7: - rename save_devices to save-devices-state. Changes in v6: - remove the is_ram parameter from register_savevm_live and sets is_ram if the device is a live_savevm device; - introduce save_devices as a QAPI command, write a better description for it; - fix CODING_STYLE; - introduce a new doc to explain the save format used by save_devices. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-03-12docs: correct ./configure line in tracing.txtJun Koi1-1/+1
This patch corrects the configure's trace option in docs/tracing.txt. Signed-off-by: Jun Koi <junkoi2004@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-03-12trace: Provide a per-event status define for conditional compilationLluís Vilanova1-6/+40
Adds a 'TRACE_${NAME}_ENABLED' preprocessor define for each tracing event in "trace.h". This lets the user conditionally compile code with a relatively high execution cost that is only necessary when producing the tracing information for an event that is enabled. Note that events using this define will probably have the "disable" property by default, in order to avoid such costs on regular builds. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-03-08libcacard: Spelling and grammar fixes in documentationStefan Weil1-13/+13
* it's -> its * it's -> it is (that's no fix, but makes future checks easier) * this functions -> this function * replacable -> replaceable * reader's -> readers * logins into -> logs into v2: Also replace 'aid' by 'AID' (thanks to Peter Maydell for this hint). v3: Fix sentence (contributed by Alon Levy / Robert Relyea). Cc: Alon Levy <alevy@redhat.com> Cc: Robert Relyea <rrelyea@redhat.com> Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-01-26docs: describe live block operationsMarcelo Tosatti1-0/+58
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 Weil1-1/+1
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 Liguori1-0/+12
Conflicts: memory.h
2011-12-15qcow2: Allow >4 GB VM stateKevin Wolf1-1/+7
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 Liguori1-3/+3
2011-12-07docs: document memory API interaction with migrationAvi Kivity1-0/+12
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-12-06docs: Add writing-qmp-commands.txtLuiz Capitulino1-0/+642
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 Jr1-3/+3
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 Brugger1-6/+6
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 Weil2-4/+4
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 Weil1-1/+1
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 Liguori1-1/+8
2011-11-01trace: Add wildcard trace event supportMark Wu1-1/+8
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 Hajnoczi1-2/+2
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-10-28qcow2: fix some errors and typo in qcow2.txtZhi Yong Wu1-3/+3
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 Vilanova1-7/+9
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 Hajnoczi1-5/+3
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 Hajnoczi1-4/+1
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 Armbruster1-1/+1
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 Liguori1-26/+47
2011-09-01trace: [stderr] add support for dynamically enabling/disabling eventsLluís1-5/+0
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 defaultLluís1-3/+8
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" keywordLluís1-10/+15
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 stateLluís1-0/+4
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 statesLluís1-18/+30
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 fileLluís1-2/+2
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 Weil1-1/+1
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 Kivity1-4/+4
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 Kivity1-0/+172
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 Roth1-0/+316
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@gmail.com>
2011-07-08usb: update documentationGerd Hoffmann2-5/+65
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 Hoffmann1-0/+85
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 Armbruster1-66/+114
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 Hoffmann1-0/+38
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 fixesLluís1-9/+9
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 Hajnoczi1-0/+5
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-04-13docs: Describe zero data clusters in QED specificationStefan Hajnoczi1-0/+8
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 Levy1-0/+135
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 Relyea1-0/+483
2011-03-16Add qcow2 documentationKevin Wolf1-0/+260
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>
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