If a panic device is being defined without a model in a domain
the default value is always overwritten with model ISA. An ISA
bus does not exist on S390 and therefore specifying a panic device
results in an unsupported configuration.
Since the S390 architecture inherently provides a crash detection
capability the panic device should be defined in the domain xml.
This patch adds an s390 panic device model and prevents setting a
device address on it.
Signed-off-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
There were few things done in the nodedev code but we were lacking tests
for it. And because of that we missed that the schema was not updated
either. Fix the schema and add various test files to show the schema
is correct.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
This reverts commit 690969af9c, which
added the domain config parts to support a "peer" attribute in domain
interface <ip> elements.
It's being removed temporarily for the release of libvirt 1.3.4
because the feature doesn't work, and there are concerns that it may
need to be modified in an externally visible manner which could create
backward compatibility problems.
Currently we only allow /dev/random and /dev/hwrng as host input
for <rng><backend model='random'/> device. This was added after
various upstream discussions in commit 4932ef45
However this restriction has generated quite a few complaints over
the years, so a new discussion was initiated:
http://www.redhat.com/archives/libvir-list/2016-April/msg00987.html
Several people suggested removing the restriction, and nobody really
spoke up to defend it. So this patch drops the path restriction
entirely
https://bugzilla.redhat.com/show_bug.cgi?id=1074464
All top-level functions have been moved to this class.
On top of that, the app.warning() method has been defined,
so that calls to it - already present in rebuild() - can
actually succeed.
Since commit d195cffa2e, both $(srcdir) and $(abs_builddir)
are passed to the apibuild.py script; however, since the
former is a relative path and the latter an absolute one, the
script might not be able to detect whether they point to the
same location.
Pass both as relative paths to avoid the issue.
When describing attributes and elements, we mostly stick to
a certain pattern; however, there are a few cases when the
information is not presented in the usual way.
Since there doesn't seem to be any reason not to follow the
tried and true formula, rework those bits to fit the rest of
the documentation.
Commit 61b070cf20 cleaned up a number of cases where the <dt>
element was used to document symbols, but the symbol itself was
not inside a <code> element.
To make sure we don't end up having to clean up again a few
months from now, introduce a syntax-check rule that can spot
such mistakes.
All existing exceptions are marked as such, with either file
or line granularity depending on the case.
libvirt-common.h is generated into builddir/include/libvirt. apibuild.py
only operated on srcdir/inlcude/libvirt. With VPATH build
srcdir/docs/libvirt-libvirt-common.html would not get generated and make
RPM failed.
Add bolding for <dt><code> elements to make them "stick out" on the
page rather that just a stream of text where the elements only differ
by slightly different font style.
IGMP is used on IPv4 networks tp setup multicast group memberships. On
IPv6, this job is done by Multicast Listener Discovery (MLD), which
uses ICMPv6 packets rather than its own IP protocol number like IGMP.
The nwfilter documentation lists "igmp-ipv6" as one of the possible
protocols, but this is ignored (and stripped from the xml). This patch
removes that erroneous reference.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1038888
Since commit f5d9c5d00c moved the virTypedParam stuff into
libvirt-common we did not generate any docs for them and neither did we
populate them into libvirt-api.xml. This broke the sanity check in
libvirt python. Fix it by generating docs for libvirt-common.h too.
Some macros don't make sense to be documented at all. Add infrastructure
to the web/api generator and add VIR_DEPRECATED and VIR_EXPORT_VAR as
macros we should not document.
Our uninstall script is not exact counterpart of install one.
Therefore we are leaving couple of files behind. This should not
happen.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
While we could leave it behind as an indelible sign that libvirt
has been running on host, other users might not be that fond of
it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Ploop image consists of directory with two files: ploop image itself,
called root.hds and DiskDescriptor.xml that contains information about
ploop device: https://openvz.org/Ploop/format.
Such volume are difficult to manipulate in terms of existing volume types
because they are neither a single files nor a directory.
This patch introduces new volume type - ploop. This volume type is used
by ploop volume's exclusively.
Signed-off-by: Olga Krishtal <okrishtal@virtuozzo.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
This controller provides a single PCIe port on a new root. It is
similar to pci-expander-bus, intended to provide a bus that can be
associated with a guest-identifiable NUMA node, but is for
machinetypes with PCIe rather than PCI (e.g. q35-based machinetypes).
Aside from PCIe vs. PCI, the other main difference is that a
pci-expander-bus has a companion pci-bridge that is automatically
attached along with it, but pcie-expander-bus has only a single port,
and that port will only connect to a pcie-root-port, or to a
pcie-switch-upstream-port. In order for the bus to be of any use in
the guest, it must have either a pcie-root-port or a
pcie-switch-upstream-port attached (and one or more
pcie-switch-downstream-ports attached to the
pcie-switch-upstream-port).
This is a standard PCI root bus (not a bridge) that can be added to a
440fx-based domain. Although it uses a PCI slot, this is *not* how it
is connected into the PCI bus hierarchy, but is only used for
control. Each pci-expander-bus provides 32 slots (0-31) that can
accept hotplug of standard PCI devices.
The usefulness of pci-expander-bus relative to a pci-bridge is that
the NUMA node of the bus can be specified with the <node> subelement
of <target>. This gives guest-side visibility to the NUMA node of
attached devices (presuming that management apps only assign a device
to a bus that has a NUMA node number matching the node number of the
device on the host).
Each pci-expander-bus also has a "busNr" attribute. The expander-bus
itself will take the busNr specified, and all buses that are connected
to this bus (including the pci-bridge that is automatically added to
any expander bus of model "pxb" (see the next commit)) will use
busNr+1, busNr+2, etc, and the pci-root (or the expander-bus with next
lower busNr) will use bus numbers lower than busNr.
This is especially useful for "bus", since the bus of a device's pci
address is matched to the "index" of a controller to determine which
bus it will be connected to, and "index" is always specified in
decimal - being able to specify both in decimal at least makes it
easier to assure a device is being assigned to the correct bus when it
is added. For the other attributes, it is just a convenience.
(MB: the parser already allows for any of these attributes to be given
in decimal, and there are even examples floating around on the
internet that give them in decimal rather than hex (written in the
days before virsh did schema validation on all XML). This only updates
the schema to match the parser.)
nwfilter.rng defines uint16range and uint32range, but in a different
manner (it also allows a variable name as the value, rather than just
a decimal or hex number). I wanted to add uint16range to
basictypes.rng, but my desired definition was parallel to those for
uint8range and uint24range which are defined in basictypes.rng - they
*don't* allow a variable name for the value.
The simplest path to make everyone happy is to make the "plain"
versions in basictypes.rng have simpler names - "uint8", "uint16", and
"uint24". This patch renames uint8range and uint24range to uint8 and
uint24, while the next patch will add uint16.
The pcie-switch-downstream-port and pcie-root-port controllers have
only a single slot, numbered 0, and the greate majority of all guest
PCI devices are plugged into function 0 of whatever slot they're
using. The parser makes these optional, setting them to 0 when not
specified, and it's logical for the schema to also make them optional.
This cleanups the documentation, reformat some of the paragraphs to use
<p> instead of </br> and rewrites the listen part to be more extendable.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
According to MDN[1], 'margin-left' and similar CSS properties,
including 'margin-right', cannot be applied to the '::first-line'
pseudo-element, so this rule will never have any effect and can
be safely removed.
[1] https://developer.mozilla.org/en/docs/Web/CSS/::first-line
This patch adds new xml element, and so we can have the option of
also having perf events enabled immediately at startup.
Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>
Message-id: 1459171833-26416-6-git-send-email-qiaowei.ren@intel.com
While we have a wiki page describing the feature [1] since the
feature is distributed in our .tar.gz we ought to document it. So
I went ahead, copied the wiki page and reformatted so it fits our
docs coding style.
1: http://wiki.libvirt.org/page/NSS_module
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
- remove top padding for h1. this means page titles sit flush with the top
of the side bar (like 'The virtualization API' on the front page)
- up the top padding for the remaining sections. makes it visually easier
to tell adjacent header sections apart, especially in dense wiki pages
- use two different spacing levels for h2-h4 and h5-h6,
gives pages some more visual flexibility
- use a slightly lower bottom padding... this makes top padding stick out
more which makes it visually easier to differentiate between adjacent
header sections
In order to follow recent comments which indicate support for specific
feature bits are supported by a specific QEMU version add the version
from whence the relaxed, vapic, and spinlocks support was added.
This patch adds support for "vpindex", "runtime", "synic",
"stimer", and "vendor_id" features available in qemu 2.5+.
- When Hyper-V "vpindex" is on, guest can use MSR HV_X64_MSR_VP_INDEX
to get virtual processor ID.
- Hyper-V "runtime" enlightement feature allows to use MSR
HV_X64_MSR_VP_RUNTIME to get the time the virtual processor consumes
running guest code, as well as the time the hypervisor spends running
code on behalf of that guest.
- Hyper-V "synic" stands for Synthetic Interrupt Controller, which is
lapic extension controlled via MSRs.
- Hyper-V "stimer" switches on Hyper-V SynIC timers MSR's support.
Guest can setup and use fired by host events (SynIC interrupt and
appropriate timer expiration message) as guest clock events
- Hyper-V "reset" allows guest to reset VM.
- Hyper-V "vendor_id" exposes hypervisor vendor id to guest.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Signed-off-by: John Ferlan <jferlan@redhat.com>
When reading in an XML definition for a SCSI target device, the name
property of struct scsi_target refers to the @target element.
Let's fix this obvious typo and also extend the XML schema to provide
validation.
Signed-off-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Most hypervisors use Hardware Assisted Paging by default and don't
require specifying the feature in domain conf. But some hypervisors
support disabling HAP on a per-domain basis. To enable HAP by default
yet provide a knob to disable it, extend the <hap> feature with a
'state=on|off' attribute, similar to <pvspinlock> and <vmport> features.
In the absence of <hap>, the hypervisor default (on) is used. <hap>
without the state attribute would be the same as <hap state='on'/> for
backwards compatibility. And of course <hap state='off'/> disables hap.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
If we expose this information, which is one byte in every PCI config
file, we let all mgmt apps know whether the device itself is an endpoint
or not so it's easier for them to decide whether such device can be
passed through into a VM (endpoint) or not (*-bridge).
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1317531
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
The docs claims the cache attribute of the disk <driver>
element supports 'default' as one of its permissible values,
but such configuration fails virt-xml-validate. Add 'default'
as one of the cache attribute choices in domaincommon.rng.
- Add line-height:150% spacing for all text. This makes text lines far
less cramped, and seems closer visually to what wikipedia uses.
- Remove bottom and top margin from lists: entries seemed needlessly
spread out.
- Reduce sublist indentation a bit
- Add a bottom border after headings: IMO this greatly helps in break
up the vertical flow of a big page of text. Doesn't look great on the
front page, but helps a lot on dense pages like formatdomain
- change font-family to just 'sans-serif' rather than hardcode a few
font families. this means we abide the user's browser font setting,
and makes us consistent with other sites like en.wikipedia.org
- raise font-size to 90%. this is what en.wikipedia.org uses.
With these two tweaks, libvirt.org text renders the same as
en.wikipedia.org with fedora firefox out of the box config. Previously
the font on libvirt.org was very small and difficult to read.
Extend the chardev source XML so that there is a new optional
<log/> element, which is applicable to all character device
backend types. For example, to log output of a TCP backed
serial port
<serial type='tcp'>
<source mode='connect' host='127.0.0.1' service='9999'/>
<protocol type='raw'/>
<log file='/var/log/libvirt/qemu/demo-serial0.log' append='on'/>
<target port='0'/>
</serial>
Not all hypervisors will support use of logfiles.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This parameter represents top level period cgroup
that limits whole domain enforcement period for a quota
Signed-off-by: Alexander Burluka <aburluka@virtuozzo.com>
This attribute is used to extend secondary PCI bar and expose it to the
guest as 64bit memory. It works like this: attribute vram is there to
set size of secondary PCI bar and guest sees it as 32bit memory,
attribute vram64 can extend this secondary PCI bar. If both attributes
are used, guest sees two memory bars, both address the same memory, with
the difference that the 32bit bar can address only the first part of the
whole memory.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1260749
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Add Spice graphics gl attribute. qemu 2.6 should have -spice gl=on argument to
enable opengl rendering context (patches on the ML). This is necessary to
actually enable virgl rendering.
Add a qemuxml2argv test for virtio-gpu + spice with virgl.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Imagine you have partially installed libvirt, or maybe you're
just running 'make uninstall' from a different version than 'make
install' has been ran. One way or another, we are doing plain
'rm' instead of 'rm -f' and thus not trying hard enough when
uninstalling. In the rest of our code we stick with -f switch. Do
that for docs too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Recent changes to the handling of GIC version, specifically commit
2a7b11eafb, have clearly defined what values are acceptable for the
version attribute of the <gic> element. Update the documentation
accordingly.
This change allows to use "host" as a GIC version in the domain XML.
Since we'll need to update the virGICVersion enumeration to support
new GIC versions anyway, it makes sense to be a bit more strict in
the schema as well and reject values that are not in the enumeration.
When generating docs in a VPATH build we get a failure to
create a file due to the 'internals' subdir not existing:
Generating internals/locking.html.tmp
/bin/sh: line 3: internals/locking.html.tmp: No such file or directory
rm: cannot remove ‘internals/locking.html.tmp’: No such file or directory
Makefile:2229: recipe for target 'internals/locking.html.tmp' failed
make: *** [internals/locking.html.tmp] Error 1
For some reason, make has decided to run the target
%.html.tmp: %.html.in site.xsl page.xsl sitemap.html.in $(acl_generated)
instead of the target
internals/%.html.tmp: internals/%.html.in subsite.xsl page.xsl sitemap.html.in
Removing '$(acl_generated)' from the first target, inexplicably
causes make to now run the correct target for the internals/
files.
Rather than figure this out, lets just combine the two targets
into one.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Add a new storage pool source device attribute 'part_separator=[yes|no]'
in order to allow a 'disk' storage pool using a device mapper multipath
device to not add the "p" partition separator to the generated device
name when libvirt_parthelper is run.
This will allow libvirt to find device mapper multipath devices which were
configured in /etc/multipath.conf to use 'user_friendly_names' or custom
'alias' names for the LUN.
So after da176bf6b7 and friend we have switched to $(wildcard
some/path/*.xml) instead of enumerating the files explicitly.
This is nice, however it makes distcheck build from VPATH fail.
The reason is that it's is not obvious to what does the wildcard
refer to: srcdir or builddir?
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Excessive memory balloon inflation can cause invocation of OOM-killer,
when Linux is under severe memory pressure. QEMU memballoon device
has a feature to release some memory at the last moment before some
process will be get killed by OOM-killer.
Introduce a new optional balloon device attribute 'autodeflate' to
enable or disable this feature.
If no port number was provided for a storage pool libvirt defaults to
port 6789; however, librbd/librados already default to 6789 when no port
number is provided.
In the future Ceph will switch to a new port for the Ceph monitors since
port 6789 is already assigned to a different application by IANA.
Port 6789 is assigned to SMC-HTTPS and Ceph now has port 3300 assigned as
the 'Ceph monitor' port.
In this case it is the best solution to not hardcode any port number into
libvirt and let librados handle the connection.
Only if a user specifies a different port number we pass it down to librados,
otherwise we leave it blank.
Signed-off-by: Wido den Hollander <wido@widodh.nl>
merge
Allow <name> and <uuid> anywhere under <domain>, not just at the top:
error:XML document failed to validate against schema: Unable to validate
doc against /usr/share/libvirt/schemas/domain.rng
Expecting an element name, got nothing
Invalid sequence in interleave
Element domain failed to validate content
Introduced with the first RelaxNG schema in commit c642103.
https://bugzilla.redhat.com/show_bug.cgi?id=1292131
The documentation (and comment in libvirtd.conf) says that the text in
a log filter is compared to the "source file name", and gives the
example of "util/json", but this is not correct (at least not since
commit 2835c1e, possibly earlier). It is instead compared to the
string given in the VIR_LOG_INIT() macro invocation at the top of each
source file, which is always "similar to but not the same as" the
source file name (in the example above, the proper name is
"util.json", while the file name is "util/virjson.c"). This patch
corrects the misstatement in both the documentation and in
libvirtd.conf.
Currently, there is no possibility for user to specify desired behaviour of
output to file - truncate or append. This patch adds an ability to explicitly
specify that user wants to preserve file's content on reopen.
Signed-off-by: Dmitry Mishin <dim@virtuozzo.com>
Using more than 4TiB of memory per NUMA node would not be possible to
express in the XML without violating the schema. Not that such boxes
would be common, but we should use a longer type at this point.
The pattern is not necessary since libvirt redefines the type already in
basictypes.rng with the same pattern.
To be used by the family of virtio input devices:
<input type='mouse' bus='virtio'/>
<input type='tablet' bus='virtio'/>
<input type='keyboard' bus='virtio'/>
https://bugzilla.redhat.com/show_bug.cgi?id=1231114
As it turned out, we need to share some enums and declarations between
libvirt.h and libvirt-admin.h, but since our policy forbids direct includes of
libvirt*.h, there has to be some header exempt from this rule. This patch moves
the relevant part of code from libvirt.h.in to libvirt-common.h.in. Moreover,
since there is no need to have libvirt.h generated anymore, introduce a new
header libvirt.h which was previosly ignored from git and make the common
header ignored and generated instead.
qemu 2.5 provides virtio video device. It can be used with -device
virtio-vga for primary devices, or -device virtio-gpu for non-vga
devices. However, only the primary device (VGA) is supported with this
patch.
Reference:
https://bugzilla.redhat.com/show_bug.cgi?id=1195176
Signed-off-by: Marc-André Lureau <marcandre.lureau@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
'model' attribute was added to a panic device but only one panic
device is allowed. This patch changes panic device presence
from 'optional' to 'zeroOrMore'.
Libvirt already has two types of panic devices - pvpanic and pSeries firmware.
This patch introduces the 'model' attribute and a new type of panic device.
'isa' model is for ISA pvpanic device.
'pseries' model is a default value for pSeries guests.
'hyperv' model is the new type. It's used for Hyper-V crash.
Schema and docs are updated for the new attribute.
Report the maximum possible number of VFs for an SRIOV PF, like this:
<capability type='virtual_functions' maxCount='7'>
...
</capability>
I've just discovered that the virtual_functions and physical_functions
capabilities are not supported in the virNodeDeviceParse functions,
only in virNodeDeviceFormat (I suppose because they are only reported,
not set from XML). This should probably be remedied, but is less
immediately useful than the current patch.
Adjust the config code so that it does not enforce that target memory
node is specified. To avoid breakage, adjust the qemu memory hotplug
config checker to disallow such config for now.
We have twice previously attempted to remove Xenner
support
commit de9be0ab4d
Author: Daniel P. Berrange <berrange@redhat.com>
Date: Wed Aug 22 17:29:01 2012 +0100
Remove xenner support
commit 92572c3d71
Author: Ján Tomko <jtomko@redhat.com>
Date: Wed Feb 18 16:33:50 2015 +0100
Remove code handling the QEMU_CAPS_DOMID capability
This change really does remove the last traces of it
in the capabilities handling code
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Check the QEMU version and refuse to work with QEMU versions
older than 0.12.0. This is approximately the vintage of QEMU
that is available in RHEL-6 era distros.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This has been broken for a looong time - in fact, we've been
shipping a mostly-empty NEWS file for at least the past two years.
Including the html namespace and using it for matching elements,
like hacking1.xsl and hacking2.xsl were already doing, makes the
NEWS file useful again.
Add a note explaining that the release list has been split up
by year as well.
There were some inconsistencies, eg. the number of digits used for
the day. The month name was also spelled out instead of abbreviated
in some instances.
There were some inconsistencies; now the section title is always
one of Bug Fixes, Cleanups, Documentation, Features, Improvements,
Portability, Security.
Some of the paragraphs were not properly indented: while this was
not a problem in the HTML version, you could tell the difference
in the plain text version.
The changes for releases earlier than 0.7.1 were mostly lumped
together as opposed to being tidly organized with one change per
line, like we have done from that point onwards.
As a result, they look awful in the HTML version and don't work
too well in the plain text version either.
Luckily, except for the very first releases, the information is
still very detailed, so it's enough to organize it properly.
The changes for releases earlier than 0.7.1 were mostly lumped
together as opposed to being tidly organized with one change per
line, like we have done from that point onwards.
As a result, they look awful in the HTML version and don't work
too well in the plain text version either.
Luckily, except for the very first releases, the information is
still very detailed, so it's enough to organize it properly.
The changes for releases earlier than 0.7.1 were mostly lumped
together as opposed to being tidly organized with one change per
line, like we have done from that point onwards.
As a result, they look awful in the HTML version and don't work
too well in the plain text version either.
Luckily, except for the very first releases, the information is
still very detailed, so it's enough to organize it properly.
The description for this release, unlike all other descriptions,
was inside a <p> element; however, the XSLT stylesheet contains a
template that drops all <p> elements from the output file, so it
never made it to the generated NEWS file.
Use a <li> element, same as all other releases, instead.
The example pvspinlock XML is:
<pvspinlock/>
While this is accepted by libvirt and works correctly, it's currently
always output as a tristate like
<pvspinlock state='on'/>
So document that format instead
We have a new libvirt-appdev-guide-python which we need to
promote to users. Rewrite the existing page to mention it
too. Also use the new URL location which is automatically
refreshed once a day.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This reverts commit e5470dd0e0.
This has been ACK'd by the original author in the original mail thread:
https://www.redhat.com/archives/libvir-list/2015-September/msg00310.html
The reason to revert this is due to the patch breaking the generation of
internal subsites. The original issue still needs to be dealt with,
though.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Double semicolons have special meaning in makefiles, but they would have
to be combined with other rules witch such separators in order to be
used as intended. Since there are no other rules like that, let's
clean it up.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Creating ACL rules is not exactly easy and existing examples are pretty
simple. This patch adds a somewhat complex example which defines several
roles. Admins can do everything, operators can do basic operations
on any domain and several groups of users who act as operators but only
on a limited set of domains.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Adds a new interface type using UDP sockets, this seems only applicable
to QEMU but have edited tree-wide to support the new interface type.
The interface type required the addition of a "localaddr" (local
address), this then maps into the following xml and qemu call.
<interface type='udp'>
<mac address='52:54:00:5c:67:56'/>
<source address='127.0.0.1' port='11112'>
<local address='127.0.0.1' port='22222'/>
</source>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</interface>
QEMU call:
-net socket,udp=127.0.0.1:11112,localaddr=127.0.0.1:22222
Notice the xml "local" entry becomes the "localaddr" for the qemu call.
reference:
http://lists.gnu.org/archive/html/qemu-devel/2011-11/msg00629.html
Signed-off-by: Jonathan Toppins <jtoppins@cumulusnetworks.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
This patch adds feature for lxc containers to inherit namespaces.
This is very similar to what lxc-tools or docker provides. Look
for "man lxc-start" and you will find that you can pass command
args as [ --share-[net|ipc|uts] name|pid ]. Or check out docker
networking option in which you can give --net=container:NAME_or_ID
as an option for sharing +namespace.
>From this patch you can add extra libvirt option to share
namespace in following way.
<lxc:namespace>
<lxc:sharenet type='netns' value='red'/>
<lxc:shareipc type='pid' value='12345'/>
<lxc:shareuts type='name' value='container1'/>
</lxc:namespace>
The netns option is specific to sharenet. It can be used to
inherit from existing network namespace.
Co-authored: Daniel P. Berrange <berrange@redhat.com>
This controller can be connected only to a port on a
pcie-switch-upstream-port. It provides a single hotpluggable port that
will accept any PCI or PCIe device, as well as any device requiring a
pcie-*-port (the only current example of such a device is the
pcie-switch-upstream-port).
This controller can be connected only to a pcie-root-port or a
pcie-switch-downstream-port (which will be added in a later patch),
which is the reason for the new connect type
VIR_PCI_CONNECT_TYPE_PCIE_PORT. A pcie-switch-upstream-port provides
32 ports (slot=0 to slot=31) on the downstream side, which can only
have pci controllers of model "pcie-switch-downstream-port" plugged
into them, which is the reason for the other new connect type
VIR_PCI_CONNECT_TYPE_PCIE_SWITCH.
This controller can be connected (at domain startup time only - not
hotpluggable) only to a port on the pcie root complex ("pcie-root" in
libvirt config), hence the new connect type
VIR_PCI_CONNECT_TYPE_PCIE_ROOT. It provides a hotpluggable port that
will accept any PCI or PCIe device.
New attributes must be added to the controller <target> subelement for
this - chassis and port are guest-visible option values that will be
set by libvirt with values derived from the controller's index and pci
address information.
There are some configuration options to some types of pci controllers
that are currently automatically derived from other parts of the
controller's configuration. For example, in qemu a pci-bridge
controller has an option that is called "chassis_nr"; up until now
libvirt has always set chassis_nr to the index of the pci-bridge. So
this:
<controller type='pci' model='pci-bridge' index='2'/>
will always result in:
-device pci-bridge,chassis_nr=2,...
on the qemu commandline. In the future we may decide there is a better
way to derive that option, but even in that case we will need for
existing domains to retain the same chassis_nr they were using in the
past - that is something that is visible to the guest so it is part of
the guest ABI and changing it would lead to problems for migrating
guests (or just guests with very picky OSes).
The <target> subelement has been added as a place to put the new
"chassisNr" attribute that will be filled in by libvirt when it
auto-generates the chassisNr; it will be saved in the config, then
reused any time the domain is started:
<controller type='pci' model='pci-bridge' index='2'>
<model type='pci-bridge'/>
<target chassisNr='2'/>
</controller>
The one oddity of all this is that if the controller configuration
is changed (for example to change the index or the pci address
where the controller is plugged in), the items in <target> will
*not* be re-generated, which might lead to conflict. I can't
really see any way around this, but fortunately if there is a
material conflict qemu will let us know and we will pass that on
to the user.
This new subelement is used in PCI controllers: the toplevel
*attribute* "model" of a controller denotes what kind of PCI
controller is being described, e.g. a "dmi-to-pci-bridge",
"pci-bridge", or "pci-root". But in the future there will be different
implementations of some of those types of PCI controllers, which
behave similarly from libvirt's point of view (and so should have the
same model), but use a different device in qemu (and present
themselves as a different piece of hardware in the guest). In an ideal
world we (i.e. "I") would have thought of that back when the pci
controllers were added, and used some sort of type/class/model
notation (where class was used in the way we are now using model, and
model was used for the actual manufacturer's model number of a
particular family of PCI controller), but that opportunity is long
past, so as an alternative, this patch allows selecting a particular
implementation of a pci controller with the "name" attribute of the
<model> subelement, e.g.:
<controller type='pci' model='dmi-to-pci-bridge' index='1'>
<model name='i82801b11-bridge'/>
</controller>
In this case, "dmi-to-pci-bridge" is the kind of controller (one that
has a single PCIe port upstream, and 32 standard PCI ports downstream,
which are not hotpluggable), and the qemu device to be used to
implement this kind of controller is named "i82801b11-bridge".
Implementing the above now will allow us in the future to add a new
kind of dmi-to-pci-bridge that doesn't use qemu's i82801b11-bridge
device, but instead uses something else (which doesn't yet exist, but
qemu people have been discussing it), all without breaking existing
configs.
(note that for the existing "pci-bridge" type of PCI controller, both
the model attribute and <model> name are 'pci-bridge'. This is just a
coincidence, since it turns out that in this case the device name in
qemu really is a generic 'pci-bridge' rather than being the name of
some real-world chip)
"Further" clarification (and testing) shows that using a SCSI Fibre
Channel NPIV device/lun from a storage pool as a <disk type='volume'
device'lun'> will work. So just add that to the allowable options
Related to: https://bugzilla.redhat.com/show_bug.cgi?id=1230179
Rather than calling virDomainHostdevAssignAddress during the parsing
of the XML, move the setting of a default hostdev address to domain/
device post processing.
Since the parse code no longer generates an address, we can remove
the virDomainDefMaybeAddHostdevSCSIcontroller since the call to
virDomainHostdevAssignAddress will attempt to add the controllers
that were not already defined in the XML.
This patch will also enforce that the address type is type 'drive'
when a SCSI subsystem <hostdev> element is provided with an <address>.
Signed-off-by: John Ferlan <jferlan@redhat.com>
