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Laine Stump 73c0a148af qemu: support event_idx parameter for virtio disk and net devices 
In some versions of qemu, both virtio-blk-pci and virtio-net-pci
devices can have an event_idx setting that determines some details of
event processing. When it is enabled, it "reduces the number of
interrupts and exits for the guest". qemu will automatically enable
this feature when it is available, but there may be cases where this
new feature could actually make performance worse (NB: no such case
has been found so far).

As a safety switch in case such a situation is encountered in the
field, this patch adds a new attribute "event_idx" to the <driver>
element of both disk and interface devices. event_idx can be set to
"on" (to force event_idx on in case qemu has it disabled by default)
or "off" (for force event_idx off). In the case that event_idx support
isn't present in qemu, the attribute is ignored (this on the advice of
the qemu developer).

docs/formatdomain.html.in: document the new flag (marking it as
   "don't mess with this!"
docs/schemas/domain.rng: add event_idx in appropriate places
src/conf/domain_conf.[ch]: add event_idx to parser and formatter
src/libvirt_private.syms: export
   virDomainVirtioEventIdx(From|To)String
src/qemu/qemu_capabilities.[ch]: detect and report event_idx in
   disk/net
src/qemu/qemu_command.c: add event_idx parameter to qemu commandline
    when appropriate.
tests/qemuxml2argvdata/qemuxml2argv-event_idx.args,
tests/qemuxml2argvdata/qemuxml2argv-event_idx.xml,
tests/qemuxml2argvtest.c,
tests/qemuxml2xmltest.c: test cases for event_idx.
2011-08-15 09:35:42 -04:00
..
api_extension maint: rename virBufferVSprintf to virBufferAsprintf 2011-05-05 13:47:40 -06:00
devhelp build: Fix API docs generation in VPATH build 2011-02-21 14:46:23 +01:00
html Remove all generated docs from source control 2009-09-21 14:41:47 +01:00
internals Add some docs about the RPC protocol and APIs 2011-08-12 13:54:10 +01:00
schemas qemu: support event_idx parameter for virtio disk and net devices 2011-08-15 09:35:42 -04:00
.gitignore Add automatic generation of a todo item page 2010-10-12 11:26:52 +01:00
32favicon.png
api_extension.html.in build: use shorter file names for 'make dist' 2010-10-27 16:29:25 -06:00
api.html.in docs: correct invalid xml 2011-04-01 16:03:11 -06:00
apibuild.py Add new API virDomainBlockPull* to headers 2011-07-22 13:18:06 +08:00
apps.html.in docs: mention EMOTIVE as a libvirt-using app 2011-07-14 15:34:37 -06:00
archdomain.html.in
architecture.fig
architecture.gif
architecture.html.in docs: added a table of contents to the first 11 docs files 2010-10-27 15:01:45 +11:00
archnetwork.html.in docs: correct invalid xml 2011-04-01 16:03:11 -06:00
archnode.html.in
archstorage.html.in Cleanup whitespace in docs 2009-11-06 16:05:18 +01:00
auth.html.in docs: added a table of contents to the first 11 docs files 2010-10-27 15:01:45 +11:00
bindings.html.in docs: Add information about libvirt-php new location 2011-02-09 12:29:29 -07:00
bugs.html.in Augment bug reporting documentation 2010-11-10 13:16:37 +01:00
compiling.html.in docs: added compiling page and significantly expanded windows page 2010-12-21 20:55:10 +11:00
contact.html.in docs: added libvirt-announce to contact page 2011-01-05 18:07:30 +11:00
csharp.html.in docs: updated c# bindings with arnauds latest changes 2010-11-30 02:22:38 +11:00
deployment.html.in docs: added a table of contents to the first 11 docs files 2010-10-27 15:01:45 +11:00
devguide.html.in docs: added a table of contents to the first 11 docs files 2010-10-27 15:01:45 +11:00
docs.html.in
downloads.html.in docs: added compiling page and significantly expanded windows page 2010-12-21 20:55:10 +11:00
drivers.html.in Remove the Open Nebula driver 2011-03-28 14:09:11 +01:00
drvesx.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
drvlxc.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
drvopenvz.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
drvqemu.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
drvremote.html.in
drvtest.html.in Whitespace cleanup for pre-tags on the website 2009-11-16 22:42:13 +01:00
drvuml.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
drvvbox.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
drvvmware.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
drvxen.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
errors.html.in Fix a number of small typos 2009-09-22 12:55:39 +02:00
et.png
firewall.html.in html docs: added firewall explanation page by daniel berrange 2010-07-10 22:47:00 +10:00
footer_corner.png
footer_pattern.png
format.html.in
formatcaps.html.in Introduce per-device boot element 2011-01-17 17:08:13 +01:00
formatdomain.html.in qemu: support event_idx parameter for virtio disk and net devices 2011-08-15 09:35:42 -04:00
formatnetwork.html.in docs: use IPv6 addresses in range reserved for documentation 2011-08-11 00:21:33 -04:00
formatnode.html.in
formatnwfilter.html.in nwfilter: enable filtering of gratuitous ARP packets 2011-05-23 19:41:18 -04:00
formatsecret.html.in Cleanup whitespace in docs 2009-11-06 16:05:18 +01:00
formatsnapshot.html.in Website documentation for the snapshot XML. 2010-04-06 09:44:03 -04:00
formatstorage.html.in Fix broken XML entity for '>' 2010-11-25 10:40:07 +01:00
formatstorageencryption.html.in docs: correct invalid xml 2011-04-01 16:03:11 -06:00
generic.css Fix missing background color 2009-12-03 15:27:24 +01:00
goals.html.in Update on the goal page 2011-03-28 10:40:24 +08:00
hacking1.xsl Generate HACKING from docs/hacking.html.in 2010-11-12 19:47:20 +01:00
hacking2.xsl Generate HACKING from docs/hacking.html.in 2010-11-12 19:47:20 +01:00
hacking.html.in build: rename files.h to virfile.h 2011-07-21 10:34:51 -06:00
hooks.html.in Fix several formatting mistakes in doc 2011-03-31 14:36:19 -06:00
hvsupport.pl docs: Make hvsupport.pl pick up the host device drivers 2011-06-06 10:45:59 +02:00
index.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
index.py maint: Expand tabs in python code 2011-02-18 08:59:51 +01:00
internals.html.in docs: correct invalid xml 2011-04-01 16:03:11 -06:00
intro.html.in * docs/*: start cleanup/revamp of architecture docs 2009-04-02 12:01:11 +00:00
java.html.in Fix a number of small typos 2009-09-22 12:55:39 +02:00
library.xen remove all trailing blank lines 2009-07-16 15:06:42 +02:00
libvirt-daemon-arch.fig Api documentation 2009-04-15 20:42:50 +00:00
libvirt-daemon-arch.png Api documentation 2009-04-15 20:42:50 +00:00
libvirt-driver-arch.fig Api documentation 2009-04-15 20:42:50 +00:00
libvirt-driver-arch.png Api documentation 2009-04-15 20:42:50 +00:00
libvirt-header-bg.png
libvirt-header-logo.png
libvirt-net-logical.fig
libvirt-net-logical.png
libvirt-net-physical.fig
libvirt-net-physical.png
libvirt-object-model.fig Api documentation 2009-04-15 20:42:50 +00:00
libvirt-object-model.png Api documentation 2009-04-15 20:42:50 +00:00
libvirt.css Align table cells on top 2011-08-11 13:42:22 -06:00
libvirtLogo.png
locking.html.in Add documentation for configuration lock managers 2011-06-28 18:19:00 +01:00
logging.html.in docs: correct invalid xml 2011-04-01 16:03:11 -06:00
madeWith.png
main.css
Makefile.am maint: add missing copyright notices 2011-07-28 15:01:17 -06:00
newapi.xsl Improve tokenizing of linkable terms 2011-08-12 07:35:19 -06:00
news.html.in Release of libvirt-0.9.4 2011-08-03 11:02:42 +08:00
news.xsl Convert NEWS to UTF-8 2009-07-29 09:04:21 +01:00
node.fig
node.gif
page.xsl docs: replace CRLF with LF 2011-01-28 08:44:05 -07:00
php.html.in docs: Add information about libvirt-php new location 2011-02-09 12:29:29 -07:00
python.html.in
relatedlinks.html.in Cleanup whitespace in docs 2009-11-06 16:05:18 +01:00
remote.html.in Add some docs about the RPC protocol and APIs 2011-08-12 13:54:10 +01:00
search.php A couple of fixes for the search PHP code 2011-01-17 16:55:41 +08:00
site.xsl Change generated HTML to UTF-8 encoding 2009-12-08 16:09:33 +01:00
sitemap.html.in Add some docs about the RPC protocol and APIs 2011-08-12 13:54:10 +01:00
storage.html.in docs: fix the xml validity errors regarding name and id 2010-09-17 00:41:08 +10:00
structures.fig
subsite.xsl virCommand: docs for usage of new command APIs 2010-12-02 16:00:47 -07:00
testapi.html.in Add documentation about test suites 2011-05-11 19:18:38 +08:00
testsuites.html.in docs: avoid double 'the' 2011-05-11 08:18:04 -06:00
testtck.html.in Add documentation about test suites 2011-05-11 19:18:38 +08:00
todo.cfg-example Add automatic generation of a todo item page 2010-10-12 11:26:52 +01:00
todo.pl Skip bugs which are CLOSED in todo list 2011-07-12 17:10:33 +01:00
uri.html.in xen-proxy: Remove it entirely and use libvirtd instead 2010-11-08 22:00:35 +01:00
virshcmdref.html.in docs: updated memtune info again in virsh command reference 2011-01-11 07:33:15 +11:00
windows.html.in docs: correct invalid xml 2011-04-01 16:03:11 -06:00
wrapstring.xsl Generate HACKING from docs/hacking.html.in 2010-11-12 19:47:20 +01:00