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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>
2011-03-07simpletrace: Thread-safe tracingStefan Hajnoczi1-5/+0
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 Hajnoczi1-4/+26
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 Natapov1-0/+43
Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-01-29New trace-event backend: stderrFabien Chouteau1-0/+5
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 Hajnoczi1-2/+11
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 Tosatti1-0/+37
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 Hajnoczi1-1/+7
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-12-17docs: Fix missing carets in QED specificationStefan Hajnoczi1-2/+2
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 Hajnoczi1-0/+130
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 Hajnoczi1-1/+4
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>
2010-10-09trace: Use portable format stringsStefan Hajnoczi1-0/+4
It is not portable to use "%ld" for int64_t because int64_t may have type long on 64-bit platforms and long long on 32-bit platforms. Use the standard library PRId64 macros to keep format strings portable. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-05docs: Improve documentationStefan Weil1-28/+28
Fix some inconsistencies (tabs and punctuation) and try to improve grammar and spelling. Cc: Juan Quintela <quintela@redhat.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de>
2010-09-21blkverify: Add block driver for verifying I/OStefan Hajnoczi1-0/+69
The blkverify block driver makes investigating image format data corruption much easier. A raw image initialized with the same contents as the test image (e.g. qcow2 file) must be provided. The raw image mirrors read/write operations and is used to verify that data read from the test image is correct. See docs/blkverify.txt for more information. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-09-09trace: Add user documentationStefan Hajnoczi1-0/+177
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-08-10Device specification for shared memory PCI deviceCam Macdonell1-0/+96
Signed-off-by: Cam Macdonell <cam@cs.ualberta.ca> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-26Initial documentation for migrationJuan Quintela1-0/+303
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-01-13docs: New qdev-device-use.txtMarkus Armbruster1-0/+353
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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