The current documentation is fairly terse and not easy to decode
for someone who's not intimately familiar with the inner workings
of timer devices. Expand on it by providing a somewhat verbose
description of what behavior each policy will result in, as seen
from both the guest OS and host point of view.
This is lifted directly from QEMU commit
commit 2a7d957596786404c4ed16b089273de95a9580ad
Author: Andrea Bolognani <abologna@redhat.com>
Date: Tue Feb 11 19:37:44 2020 +0100
qapi: Expand documentation for LostTickPolicy
v4.2.0-1442-g2a7d957596
The original text also matched word for word the documentation
found in QEMU.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This is a very simple thing to parse and format, but needs to be done
in 4 places, so two trivial utility functions have been made that can
be called from all the higher level parser/formatters:
<domain><interface>
<domain><interface><actual> (only in domain status)
<network>
<networkport>
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This is in the data structure and the parse/format functions, and is
getting passed all around correctly, it just was omitted from the RNG,
which hasn't been noticed because no human is creating <networkport>
XML, and so it's never getting validated against the schema.
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Relevant code seems to treat forward modes 'route', 'nat', 'open' and 'none'
the same but documentation hasn't reflected that so far.
Signed-off-by: Pavel Mores <pmores@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
We are going to add support for specifying offset and size attributes
which will allow controling where the image and where the guest data
itself starts in the source of the disk. This will be represented by
a <slices> element filled with either a <slice type='storage'> for the
offset of the image format data.
Add the XML documentation and RNG schema.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This new timer model will be used to control the behavior of the
virtual timer for KVM ARM/virt guests.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Users expect to be able to configure the <console> element and see
that configuration reflected into the <serial> element or at least
sticking, however due to our crazy back-compat code that doesn't
always happen.
There's really not much we can do to make this kind of corner cases
work as the user would expect, especially not without introducing
additional complexity in a part of libvirt that already has more
than a fair share of it; we can, however, improve the documentation
so that it will nudge said users in the right direction.
https://bugzilla.redhat.com/show_bug.cgi?id=1770725
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Simplify gathering the actual return value from a passed-through QMP
command when using 'qemu-monitor-command' by adding '--return-value'
switch which just extracts the 'return' section and alternatively
reports an error if the section is not present.
This simplifies gathering of some test data where the full reply would
need to be trimmed just for the actual return value.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Mention that we actually by default use QMP and clarify the rest
of the documentation.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This deletes all trace of gnulib from libvirt. We still
have the keycodemapdb submodule to deal with. The simple
solution taken was to update it when running autogen.sh.
Previously gnulib could auto-trigger refresh when running
'make' too. We could figure out a solution for this, but
with the pending meson rewrite it isn't worth worrying
about, given how infrequently keycodemapdb changes.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
When using ``....`` in RST, this results in <span class="literal">...</span>
instead of <code>...</code>. We thus need an extra rule to render it
with a monospace font. Colouring a light gray also helps the text
stand out a little more and matches background of <pre> blocks.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This patch adds support for the tpm-spapr device model for ppc64. The XML for
this type of TPM looks as follows:
<tpm model='tpm-spapr'>
<backend type='emulator'/>
</tpm>
Extend the documentation.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
The flag for the virDomainUndefine API is supported even if we report
that <backup supported='no'/>. Mention it in the docs.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
The location of virt-aa-helper shown in the docs is incorrect.
The helper binary is installed under libexec dir.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This is updating the releases and resources links so they point now to
crates.io for the releases and docs.rs for the api ref.
Signed-off-by: Sahid Orentino Ferdjaoui <sahid.ferdjaoui@canonical.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Since
commit 201156ec6e
Author: Daniel P. Berrangé <berrange@redhat.com>
Date: Mon Dec 16 10:06:50 2019 +0000
docs: add pages to support Go module package resolution
it's possible to use
import "libvirt.org/libvirt-go"
import "libvirt.org/libvirt-go-xml"
in Go programs, which will result in the Go packages being
fetched directly from libvirt.org instead of GitHub.
The godoc website offers the API documentation for the updated
imports, and that's where we should send users.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We haven't ever made releases of the Go components, which makes
sense because that's just not how that specific ecosystem works.
For people who are looking to use libvirt from Go, the brief
introductory pages located at the same URLs used to import the
packages are a better entry point than an empty directory
listing, so let's send them there instead.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The subelement <teaming> of <interface> devices is used to configure a
simple teaming association between two interfaces in a domain. Example:
<interface type='bridge'>
<source bridge='br0'/>
<model type='virtio'/>
<mac address='00:11:22:33:44:55'/>
<alias name='ua-backup0'/>
<teaming type='persistent'/>
</interface>
<interface type='hostdev'>
<source>
<address type='pci' bus='0x02' slot='0x10' function='0x4'/>
</source>
<mac address='00:11:22:33:44:55'/>
<teaming type='transient' persistent='ua-backup0'/>
</interface>
The interface with <teaming type='persistent'/> is assumed to always
be present, while the interface with type='transient' may be be
unplugged and later re-plugged; the persistent='blah' attribute (and
in the one currently available implementation, also the matching MAC
addresses) is what associates the two devices with each other. It is
up to the hypervisor and the guest network drivers to determine what
to do with this information.
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
We currently note that the QEMU embedded driver is experimental
in the drvqemu.html file, but we should do the same in the
virt-qemu-run man page.
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The --strict arg forces the rst tools to abort with an error instead
of printing warnings to stderr, or the output document.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
You can't have two links with the same text when using named
link references (a single "_"). If you need multiple links
with the same text you must use anonymous link references
(a double "_").
There are also some duplicate section headers causing the
same problem with duplicate link targets.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Discourage passing secrets as commandline arguments.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Simplify human usage of secret-set-value by adding --interactive which
will read the value of the secret from the terminal.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Allow using the contents of --file without base64 decoding.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Print a warning if users pass in secrets as command line arguments and
mention it in the man page.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The necessity to specify the secret value as command argument is
insecure. Allow reading the secret from a file.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Users might want to get the raw value instead of dealing with base64
encoding. This might be useful for redirection to file and also for
simple human-readable secrets.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
A few new companies and individuals contributed to libvirt since
the last time the gitdm configuration was updated.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Also one stray angle bracket.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Fixes: 068efae5b1
Fixes: 3e9076e777
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Fix a documentation generation error:
System Message: WARNING/2 (<stdin>, line 15); backlink
Inline literal start-string without end-string.
As well as the 'independant' typo.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Fixes: d600667278
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Currently the libvirt Go modules are accessed by applications using
their github repository URLs. This is undesirable as we don't want
applications to have a direct dependancy on a specific source repo
location. We want to enable applications to use the Go packages via
the libvirt.org namespace.
When you do "go get libvirt.org/libvirt-go", the Go client will do an
HTTPS request to that URL, and parse the HTML content to look for a
<meta> tag which tells it where to the find the GIT repository.
https://golang.org/cmd/go/#hdr-Remote_import_paths
This adds two pages to support this Go module resolution. They are
not linked from anywhere as we don't expect users to actually look
at them. If someone does happen upon them, there's some boilerplate
text to send them off to godoc.org for API documentation.
Since the pages we're adding have a .html extension, we will also
use a small apache config tweak on the server
RewriteEngine on
RewriteRule ^/libvirt-go$ /libvirt-go.html [L]
RewriteRule ^/libvirt-go-xml$ /libvirt-go-xml.html [L]
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The previous "QEMU shim" proof of concept was taking an approach of only
caring about initial spawning of the QEMU process. It was then
registered with the libvirtd daemon who took over management of it. The
intent was that later libvirtd would be refactored so that the shim
retained control over the QEMU monitor and libvirt just forwarded APIs
to each shim as needed. This forwarding of APIs would require quite alot
of significant refactoring of libvirtd to achieve.
This impl thus takes a quite different approach, explicitly deciding to
keep the VMs completely separate from those seen & managed by libvirtd.
Instead it uses the new "qemu:///embed" URI scheme to embed the entire
QEMU driver in the shim, running with a custom root directory.
Once the driver is initialization, the shim starts a VM and then waits
to shutdown automatically when QEMU shuts down, or should kill QEMU if
it is terminated itself. This ought to use the AUTO_DESTROY feature but
that is not yet available in embedded mode, so we rely on installing a
few signal handlers to gracefully kill QEMU. This isn't reliable if
we crash of course, but you can restart with the same root dir.
Note this program does not expose any way to manage the QEMU process,
since there's no RPC interface enabled. It merely starts the VM and
cleans up when the guest shuts down at the end. This program is
installed to /usr/bin/virt-qemu-run enabling direct use by end users.
Most use cases will probably want to integrate the concept directly
into their respective application codebases. This standalone binary
serves as a nice demo though, and also provides a way to measure
performance of the startup process quite simply.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This enables support for running the secret driver embedded to the
calling application process using a URI:
secret:///embed?root=/some/path
When using the embedded mode with a root=/var/tmp/embed, the
driver will use the following paths:
configDir: /var/tmp/embed/etc/secrets
stateDir: /var/tmp/embed/run/secrets
These are identical whether the embedded driver is privileged
or unprivileged.
This compares with the system instance which uses
configDir: /etc/libvirt/secrets
stateDir: /var/lib/libvirt/secrets
When an embedded instance of the secret driver is open, any other
embedded drivers will automatically use the embedded secret driver.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This enables support for running QEMU embedded to the calling
application process using a URI:
qemu:///embed?root=/some/path
Note that it is important to keep the path reasonably short to
avoid risk of hitting the limit on UNIX socket path names
which is 108 characters.
When using the embedded mode with a root=/var/tmp/embed, the
driver will use the following paths:
logDir: /var/tmp/embed/log/qemu
swtpmLogDir: /var/tmp/embed/log/swtpm
configBaseDir: /var/tmp/embed/etc/qemu
stateDir: /var/tmp/embed/run/qemu
swtpmStateDir: /var/tmp/embed/run/swtpm
cacheDir: /var/tmp/embed/cache/qemu
libDir: /var/tmp/embed/lib/qemu
swtpmStorageDir: /var/tmp/embed/lib/swtpm
defaultTLSx509certdir: /var/tmp/embed/etc/pki/qemu
These are identical whether the embedded driver is privileged
or unprivileged.
This compares with the system instance which uses
logDir: /var/log/libvirt/qemu
swtpmLogDir: /var/log/swtpm/libvirt/qemu
configBaseDir: /etc/libvirt/qemu
stateDir: /run/libvirt/qemu
swtpmStateDir: /run/libvirt/qemu/swtpm
cacheDir: /var/cache/libvirt/qemu
libDir: /var/lib/libvirt/qemu
swtpmStorageDir: /var/lib/libvirt/swtpm
defaultTLSx509certdir: /etc/pki/qemu
At this time all features present in the QEMU driver are available when
running in embedded mode, availability matching whether the embedded
driver is privileged or unprivileged.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The 'builtin' rng backend model can be used as following:
<rng model='virtio'>
<backend model='builtin'/>
</rng>
Signed-off-by: Han Han <hhan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
If users wish to use different name for exported disks or bitmaps
the new fields allow to do so. Additionally they also document the
current settings.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This is only 2 simple typo fixes for wrong documentation wording.
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reported at build time by lintian:
manpage-section-mismatch usr/share/man/man8/virt-sanlock-cleanup.8.gz:3 8 != 1
And indeed the rst file says 1 while the makefile say 8:
if WITH_SANLOCK
manpages8_rst += manpages/virt-sanlock-cleanup.rst
else ! WITH_SANLOCK
8 "System administration commands and daemons" seems to match, so fix
the rst file to match.
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Update the host CPU code to report the die_id in the NUMA topology
capabilities. On systems with multiple dies, this fixes the bug
where CPU cores can't be distinguished:
<cpus num='12'>
<cpu id='0' socket_id='0' core_id='0' siblings='0'/>
<cpu id='1' socket_id='0' core_id='1' siblings='1'/>
<cpu id='2' socket_id='0' core_id='0' siblings='2'/>
<cpu id='3' socket_id='0' core_id='1' siblings='3'/>
</cpus>
Notice how core_id is repeated within the scope of the same socket_id.
It now reports
<cpus num='12'>
<cpu id='0' socket_id='0' die_id='0' core_id='0' siblings='0'/>
<cpu id='1' socket_id='0' die_id='0' core_id='1' siblings='1'/>
<cpu id='2' socket_id='0' die_id='1' core_id='0' siblings='2'/>
<cpu id='3' socket_id='0' die_id='1' core_id='1' siblings='3'/>
</cpus>
So core_id is now unique within a (socket_id, die_id) pair.
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Recently CPU hardware vendors have started to support a new structure
inside the CPU package topology known as a "die". Thus the hierarchy
is now:
sockets > dies > cores > threads
This adds support for "dies" in the XML parser, with the value
defaulting to 1 if not specified for backwards compatibility.
For example a system with 64 logical CPUs might report
<topology sockets="4" dies="2" cores="4" threads="2"/>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Our virsh already has 'domhostname' command. Add '--source'
argument to it so that users can chose between 'lease' and
'agent' sources. Also, implement completer for the argument.
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Some were in the wrong section, some in the wrong version.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Add documentation for additional reason why snapshot-revert might need
to be forced. This explains why restoring an inactive snapshot while
there is managed saved state is refused by default.
Signed-off-by: Michael Weiser <michael.weiser@gmx.de>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Reformat explanations of the snapshot-revert force reasons in
preparation for more to be added. This is a simple reformat without any
wording changes.
Signed-off-by: Michael Weiser <michael.weiser@gmx.de>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Trivially replace usages of qemu and lxc in the virsh manpage with their
more heavily used and (according to Wikipedia) correct upper-case
spellings QEMU and LXC.
Signed-off-by: Michael Weiser <michael.weiser@gmx.de>
Suggested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
There is no need to require users to produce iSCSI disk source
following our ordering of children elements. In fact, we don't
even accept our own order in the schema :(.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
Currently, when security driver is not available users are informed that
it wasn't found which can be confusing.
1. Update error message
2. Add comment to domain doc
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by Sebastian Mitterle <smitterl@redhat.com>
Document that --diskspec DISK,snapshot=no disables snapshot for the
given disk.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
One of the first versions thought of using disk path as the second
option but this was dropped as being a legacy interface. Remove the
leftover pointless <choice> wrapper for the disk name as there's just
one option now.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
We initially claimed to only support the most recent macOS
release, which is currently 10.15. Our Travis CI, however,
is validating 10.14.4 / XCode 10.3.
For almost all of our other platforms, we support multiple
releases to some degree. This change brings macOS in line
with other long life distros, covering the most recent &
most recent but one for a 2 year overlap. With this docs
change our CI is now actually testing our minimum version.
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
While command line arguments are sort of positional (because you
have to have two entries, one for "-arg" the other for "value"),
it doesn't really matter whether env variables come before or
after command line arguments.
And it matters even less when playing with qemu capabilities.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
The phyp driver was added in 2009 and does not appear to have had any
real feature change since 2011. There's virtually no evidence online
of users actually using it. IMO it's time to kill it.
This was discussed a bit in April 2016:
https://www.redhat.com/archives/libvir-list/2016-April/msg01060.html
Final discussion is here:
https://www.redhat.com/archives/libvir-list/2019-December/msg01162.html
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
As part of a goal to eliminate Perl from libvirt build tools,
rewrite the genaclperms.pl tool in Python.
This was a straight conversion, manually going line-by-line to
change the syntax from Perl to Python. Thus the overall structure
of the file and approach is the same.
Tested-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
As part of a goal to eliminate Perl from libvirt build tools,
rewrite the hvsupport.pl tool in Python.
This was a straight conversion, manually going line-by-line to
change the syntax from Perl to Python. Thus the overall structure
of the file and approach is the same.
The new impl generates byte-for-byte identical output to the
old impl.
Tested-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
It will be used to represent the type of a filesystem pool in ESXi.
Signed-off-by: Pino Toscano <ptoscano@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
This patch introduces a new PCI hostdev address type called
'unassigned'. This new type gives users the option to add
PCI hostdevs to the domain XML in an 'unassigned' state, meaning
that the device exists in the domain, is managed by Libvirt
like any regular PCI hostdev, but the guest does not have
access to it.
This adds extra options for managing PCI device binding
inside Libvirt, for example, making all the managed PCI hostdevs
declared in the domain XML to be detached from the host and bind
to the chosen driver and, at the same time, allowing just a
subset of these devices to be usable by the guest.
Next patch will use this new address type in the QEMU driver to
avoid adding unassigned devices to the QEMU launch command line.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
There is this class of PCI devices that act like disks: NVMe.
Therefore, they are both PCI devices and disks. While we already
have <hostdev/> (and can assign a NVMe device to a domain
successfully) we don't have disk representation. There are three
problems with PCI assignment in case of a NVMe device:
1) domains with <hostdev/> can't be migrated
2) NVMe device is assigned whole, there's no way to assign only a
namespace
3) Because hypervisors see <hostdev/> they don't put block layer
on top of it - users don't get all the fancy features like
snapshots
NVMe namespaces are way of splitting one continuous NVDIMM memory
into smaller ones, effectively creating smaller NVMe-s (which can
then be partitioned, LVMed, etc.)
Because of all of this the following XML was chosen to model a
NVMe device:
<disk type='nvme' device='disk'>
<driver name='qemu' type='raw'/>
<source type='pci' managed='yes' namespace='1'>
<address domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
</source>
<target dev='vda' bus='virtio'/>
</disk>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Following domain configuration changes create two memory bandwidth
monitors: one is monitoring the bandwidth consumed by vCPU 0,
another is for vCPU 5.
```
<cputune>
<memorytune vcpus='0-4'>
<node id='0' bandwidth='20'/>
<node id='1' bandwidth='30'/>
+ <monitor vcpus='0'/>
</memorytune>
+ <memorytune vcpus='5'>
+ <monitor vcpus='5'/>
+ </memorytune>
</cputune>
```
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Huaqiang <huaqiang.wang@intel.com>
Originally, inside <cputune/cachetune>, it requires the <cache> element to
be in the position before <monitor>, and following configuration is not
permitted by schema, but it is better to let it be valid.
<cputune>
<cachetune vcpus='0-1'>
<monitor level='3' vcpus='0-1'/>
^
|__ Not permitted originally because it is in the place
before <cache> element.
<cache id='0' level='3' type='both' size='3' unit='MiB'/>
<cache id='1' level='3' type='both' size='3' unit='MiB'/>
</cachetune>
...
</cputune>
And, let schema do more strict check by identifying following configuration to
be invalid, due to <cachetune> should contain at least one <cache> or <monitor>
element.
<cputune>
<cachetune vcpus='0-1'>
^
|__ a <cachetune> SHOULD contain at least one <cache> or <monitor>
</cachetune>
...
</cputune>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Huaqiang <huaqiang.wang@intel.com>
Both the application developer guide and virsh command
reference are unmaintained for best part of 8 years, and
so horrifically out of date. This does not give a good
impression to people reading the docs. Now that we are
publishing the man pages online, those are a better
doc to read for virsh. We can also highlight the API
reference instead of the app dev guide.
The virsh command reference & app dev guide will
still exist on the web root, but will not be linked
to.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Some versions of the rst2man convertor are buggy failing to
cope with syntax highlighting in code blocks.
This isn't something we really need for the man page code
blocks, so we can just delete the highlighting directive.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Support by usage name can be considered separately (with a 'usage'
attribute?).
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Christophe de Dinechin <dinechin@redhat.com>
Cc: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
When QEMU uid/gid is set to non-root this is pointless as if we just
used a regular setuid/setgid call, the process will have all its
capabilities cleared anyway by the kernel.
When QEMU uid/gid is set to root, this is almost (always?) never
what people actually want. People make QEMU run as root in order
to access some privileged resource that libvirt doesn't support
yet and this often requires capabilities. As a result they have
to go find the qemu.conf param to turn this off. This is not
viable for libguestfs - they want to control everything via the
XML security label to request running as root regardless of the
qemu.conf settings for user/group.
Clearing capabilities was implemented originally because there
was a proposal in Fedora to change permissions such that root,
with no capabilities would not be able to compromise the system.
ie a locked down root account. This never went anywhere though,
and as a result clearing capabilities when running as root does
not really get us any security benefit AFAICT. The root user
can easily do something like create a cronjob, which will then
faithfully be run with full capabilities, trivially bypassing
the restriction we place.
IOW, our clearing of capabilities is both useless from a security
POV, and breaks valid use cases when people need to run as root.
This removes the clear_emulator_capabilities configuration
option from qemu.conf, and always runs QEMU with capabilities
when root. The behaviour when non-root is unchanged.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The keycodemap tool is told to generate docs in rst format now
instead of pod.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This was a semi-automated conversion. First it was run through pod2rst,
and then it was manually editted to use a rst structure that matches
expectations of rst2man.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This was a semi-automated conversion. First it was run through pod2rst,
and then it was manually editted to use a rst structure that matches
expectations of rst2man.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This was a semi-automated conversion. First it was run through pod2rst,
and then it was manually editted to use a rst structure that matches
expectations of rst2man.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This was a semi-automated conversion. First it was run through pod2rst,
and then it was manually editted to use a rst structure that matches
expectations of rst2man.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This was a semi-automated conversion. First it was run through pod2rst,
and then it was manually editted to use a rst structure that matches
expectations of rst2man.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This was a semi-automated conversion. First it was run through pod2rst,
and then it was manually editted to use a rst structure that matches
expectations of rst2man.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This was a semi-automated conversion. First it was run through pod2rst,
and then it was manually editted to use a rst structure that matches
expectations of rst2man.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This was a semi-automated conversion. First it was run through pod2rst,
and then it was manually editted to use a rst structure that matches
expectations of rst2man.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This was a semi-automated conversion. First it was run through pod2rst,
and then it was manually editted to use a rst structure that matches
expectations of rst2man.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This was a semi-automated conversion. First it was run through pod2rst,
and then it was manually editted to use a rst structure that matches
expectations of rst2man.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The rst2man tool is provided by python docutils, and as the name
suggests, it converts RST documents into man pages.
The intention is that our current POD docs will be converted to
RST format, allowing one more use of Perl to be eliminated from
libvirt.
The manual pages will now all be kept in the docs/manpages/ directory,
which enables us to include the man pages in the published website.
This is good for people searching for libvirt man pages online as it
makes it more likely google will send them to the libvirt.org instead
of some random third party man page site with outdated content.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This flag will allow figuring out whether the hypervisor supports the
incremental backup and checkpoint features.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Prepare for new backup APIs by describing the XML that will represent
a backup. The XML resembles snapshots and checkpoints in being able
to select actions for a set of disks, but has other differences. It
can support both push model (the hypervisor does the backup directly
into the destination file) and pull model (the hypervisor exposes an
access port for a third party to grab what is necessary). Add
testsuite coverage for some minimal uses of the XML.
The <disk> element within <domainbackup> tries to model the same
elements as a <disk> under <domain>, but sharing the RNG grammar
proved to be hairy. That is in part because while <domain> use
<source> to describe a host resource in use by the guest, a backup job
is using a host resource that is not visible to the guest: a push
backup action is instead describing a <target> (which ultimately could
be a remote network resource, but for simplicity the RNG just
validates a local file for now), and a pull backup action is instead
describing a temporary local file <scratch> (which probably should not
be a remote resource). A future refactoring may thus introduce some
way to parameterize RNG to accept <disk type='FOO'>...</disk> so that
the name of the subelement can be <source> for domain, or <target> or
<scratch> as needed for backups. Future patches may improve this area
of code.
Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
When parsing the guest XML we must fill in the default guest arch if it
is not already present because later parts of the parsing process need
this information.
If no arch is specified we lookup the first guest in the capabilities
data matching the os type and virt type. In most cases this will result
in picking the host architecture but there are some exceptions...
- The test driver is hardcoded to always use i686 arch
- The VMWare/ESX drivers will always place i686 guests ahead
of x86_64 guests in capabilities, so effectively they always
use i686
- The QEMU driver can potentially return any arch at all
depending on what combination of QEMU binaries are installed.
The domain XML hardware configurations are inherently architecture
specific in many places. As a result whomever/whatever created the
domain XML will have had a particular architecture in mind when
specifying the config. In pretty much any sensible case this arch
will have been the native host architecture. i686 on x86_64 is
the only sensible divergance because both these archs are
compatible from a domaain XML config POV.
IOW, although the QEMU driver can pick an almost arbitrary arch as its
default, in the real world no application or user is likely to be
relying on this default arch being anything other than native.
With all this in mind, it is reasonable to change the XML parser to
allow the default architecture to be passed via the domain XML options
struct. If no info is explicitly given then it is safe & sane to pick
the host native architecture as the default for the guest.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
KVM dedicated performance hint is added since qemu version 2.10.0 not
2.10.1.
Signed-off-by: Han Han <hhan@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
The libvirt RPM packaging is quite fine grained but it is not obvious to
users which package is best to install. Add a kbase doc that describes
the different RPMs, and illustrates some example deployment use cases.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is a semi-automated conversion. The first conversion is done using
"pandoc -f html -t rst". The result is then editted manually to apply
the desired heading markup, and fix a few things that pandoc gets wrong.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is a semi-automated conversion. The first conversion is done using
"pandoc -f html -t rst". The result is then editted manually to apply
the desired heading markup, and fix a few things that pandoc gets wrong.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is a semi-automated conversion. The first conversion is done using
"pandoc -f html -t rst". The result is then editted manually to apply
the desired heading markup, and fix a few things that pandoc gets wrong.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is a semi-automated conversion. The first conversion is done using
"pandoc -f html -t rst". The result is then editted manually to apply
the desired heading markup, and fix a few things that pandoc gets wrong.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is a semi-automated conversion. The first conversion is done using
"pandoc -f html -t rst". The result is then editted manually to apply
the desired heading markup, and fix a few things that pandoc gets wrong.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is a semi-automated conversion. The first conversion is done using
"pandoc -f html -t rst". The result is then editted manually to apply
the desired heading markup, and fix a few things that pandoc gets wrong.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Most importantly we document the required heading markup so that we get
consistency across the docs. Also mention that docs should have a table
of contents if they have headings & are likely longer than one page of
text.
The 3-space indent rule may sound wierd, but that's what python has
recommended and thus what tools like pandoc emit. Rather than try to
reindent things to 4-space, just accept this RST norm.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Although <tt> is deprecated in HTML5, the rst2html command will still
emit it, in preference to <code> tags, so we must style it too.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
We currently only render pretty tables if they have the "top_table"
class set. All of our tables set this, except for the ACL & migration
doc tables, which should have set it, and the API reference which does
not want it.
Simplify life by rendering all tables in a pretty style and remove the
need for the "top_table" class entirely. A small rule turns off the
pretty style for the API reference where tables are a hack used to
render enums with horizontal alignment.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The rst2html output generates the links for headings in a slightly
different way than we do for docs written in HTML, so we must match
another scenario when generating back links.
rst2html will also use <h1> tags for both the document title and
the first level of section titles, so we must expand the matching
to allow for this too.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The HTML from rst2html doesn't have <h1> immediately under the <body>
tag, instead there is at least one <div> in between.
There are also many things added in the <head> section that we don't
want to have copied over, since our templating system already adds
suitable <head> elements.
We only need to copy the <script> to make index.html work.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The rst2html tool is provided by python docutils, and as the name
suggests, it converts RST documents into HTML.
Basic rules are added for integrating RST docs into the website
build process.
This enables us to start writing docs on our website in RST format
instead of HTML, without changing the rest of our website templating
system away from XSLT yet.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The docs about remote URIs in uri.html are somewhat sparse with the full
docs being in remote.html. Move all the URI content from remote.html
into uri.html so the user only needs to look in one place for URI info.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The generation and deployment of x509 certificates for TLS is complex
and verbose and thus deserves its own standalone page.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Since the max unit of virtio scsi disk is 16383, update the range of
driveUnit to it.
Signed-off-by: Han Han <hhan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The news schema requires two digits for both month and day in the date
attribute. s/2/02/ in the day value of date to fix the following
'make check' failure
2165) Checking ../docs/news.xml against ../news.rng ...
libvirt: XML Util error : XML document failed to validate against schema:
Unable to validate doc against /home/jfehlig/virt/upstream/libvirt/build/../docs/schemas/../news.rng
Element release failed to validate attributes
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
After generating the API HTML files we run xmllint in docs/html/*.html
to validate the correctness. Since
commit 0aa8536f14
Author: Daniel P. Berrangé <berrange@redhat.com>
Date: Wed Nov 20 14:49:26 2019 +0000
docs: generate API reference pages for admin, qemu & lxc libraries
we have many rules generating files into docs/html/. The xmllint
calls for each rule are picking up files which are part-generated by
other parallel build rules resulting in transient errors like:
GEN html/index.html
GEN html/index-admin.html
GEN html/index-qemu.html
GEN html/index-lxc.html
GEN hvsupport.html.in
html/index-lxc.html:1: parser error : Document is empty
^
make[4]: *** [Makefile:2407: html/index-qemu.html] Error 1
The easiest solution is to move the xmllint rules to the 'make check'
phase of the build.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Until now we've only supported <backingStore> in an output mode. The
documentation for the element states that hypervisor drivers may start
to obey it in the future.
Update the documentation so that it mentions the recently added
'backingStoreInput' domain capability and explain what happens if it is
supported and <backingStore> is present on input.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Historically we've only supported the <backingStore> as an output-only
element for domain disks. The documentation states that it may become
supported on input. To allow management apps detectin once that happens
add a domain capability which will be asserted if the hypervisor driver
will be able to obey the <backingStore> as configured on input.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The XSL generator loads included HTML files relative to the source dir
but we need to tell it to load them from the build dir instead.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Some of the web content is only present in the source tree, thus when
viewing pages from the build tree they appear missing.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The API cross reference files are not used since
commit d3043afe5c
Author: Daniel Veillard <veillard@redhat.com>
Date: Mon Jan 21 08:08:33 2008 +0000
Remove docs/API*.html
* docs/API* docs/api.xsl docs/site.xsl docs/Makefile.am: remove the
generation of the API*.html files as it's not really useful here
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Define automake variables for all the data we need built and installed
and let automake generate the install rules normally.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The non-systemd configurations do not create system neither user
control groups. The title of the diagram referenced systemd too.
Signed-off-by: Miguel Ángel Arruga Vivas <rosen644835@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The 'ramfb' attribute provides a framebuffer to the guest that can be
used as a boot display for the vgpu
For example, the following configuration can be used to provide a vgpu
with a boot display:
<hostdev mode='subsystem' type='mdev' model='vfio-pci' display='on' ramfb='on'>
<source>
<address uuid='$UUID'/>
</source>
</hostdev>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
It was lifted with c92b6023e8.
Signed-off-by: Pino Toscano <ptoscano@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
The video resolution support that was introduced in
7286279797 is specified as a <resolution>
sub-element of <model>, not optional attributes of model.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
The libxl driver exposes a 'hap' feature in the capability XML but our
schema didn't cover it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that function is no longer used, it can be dropped.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Line continuations should be 4 space indented unless a previous opening
brace required different alignment.
docs/apibuild.py:2014:24: E126 continuation line over-indented for hanging indent
token[0], token[1]))
^
docs/apibuild.py:74:3: E121 continuation line under-indented for hanging indent
"ATTRIBUTE_UNUSED": (0, "macro keyword"),
^
...more...
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
There should be a single space either side of operators. Inline
comments should have two spaces before the '#'
src/hyperv/hyperv_wmi_generator.py:130:45: E261 at least two spaces before inline comment
source += ' { "", "", 0 },\n' # null terminated
^
src/esx/esx_vi_generator.py:417:25: E221 multiple spaces before operator
FEATURE__DESERIALIZE = (1 << 6)
^
tests/cputestdata/cpu-cpuid.py:187:78: E225 missing whitespace around operator
f.write(" <msr index='0x%x' edx='0x%08x' eax='0x%08x'/>\n" %(
^
docs/apibuild.py:524:47: E226 missing whitespace around arithmetic operator
self.line = line[i+2:]
^
...more...
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Coding style expects 1 blank line between each method and 2 blank lines
before each class.
docs/apibuild.py:171:5: E303 too many blank lines (2)
def set_header(self, header):
^
docs/apibuild.py:230:1: E302 expected 2 blank lines, found 1
class index:
^
docs/apibuild.py:175:5: E301 expected 1 blank line, found 0
def set_module(self, module):
^
...more...
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Exception catching statements should always match on a class name, the
most specific one possible. Rather than analyse the code to look at what
the most specific one is, this just uses the base Exception class.
docs/apibuild.py:255:9: E722 do not use bare 'except'
except:
^
docs/apibuild.py:279:9: E722 do not use bare 'except'
except:
^
...more...
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Python code style recommends avoiding a variable named 'l' as it is
visually similar to '1'.
docs/apibuild.py:482:13: E741 ambiguous variable name 'l'
l = len(line)
^
docs/apibuild.py:503:21: E741 ambiguous variable name 'l'
l = len(line)
^
...more...
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
When writing regexes special regex matches like "\d" can get
misinterpreted as normal string escape sequences:
docs/apibuild.py:1359:51: W605 invalid escape sequence '\d'
value = value + re.sub("^(\d+)U$", "\\1", token[1])
^
docs/apibuild.py:2134:31: W605 invalid escape sequence '\('
m = re.match("\(?1<<(\d+)\)?", info[0])
^
docs/apibuild.py:2134:38: W605 invalid escape sequence '\d'
m = re.match("\(?1<<(\d+)\)?", info[0])
^
docs/apibuild.py:2134:42: W605 invalid escape sequence '\)'
m = re.match("\(?1<<(\d+)\)?", info[0])
^
To avoid this probem all regexes should use the r"...." syntax for their
strings, which disables normal string escape sequences.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Historically we've allowed builds in the main src dir, but meson does
not support this. Explicitly force separate build dir in autotools to
align with meson. We must re-enable dependency tracking which the RPM
%configure macro turns off. Without this, the build dir doesn't get
the source directory tree mirrored.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
A few new companies and individuals contributed to libvirt since
the last time the gitdm configuration was updated.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
The "Security" section has been used in the past, so we're only
documenting existing behavior; the "Packaging changes" will be
used in the next commit, as well as in future releases when we
make more changes that are relevant to packagers, such as the
switch to Meson.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
Xen support for specifying ACPI firmware path was introduced in the
5.9.0 dev cycle, not 5.8.0 as currently indicated by the docs.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Historically we did not support VPATH builds and everything was
generated into source directory. The introduction of VPATH builds did
not changed the way how our documentation is handled.
This patch changes the rules to generate everything into build
directory and stops distributing generated files in order to have
properly separated VPATH builds.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
There is no need to keep old compatibility code around as it it will
never be used in our current source tree.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
There is no need to have the libvirt-admin.so library definition in the
src directory. In addition the library uses directly code from admin
sub-directory so move the remaining bits there as well.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
s/verca/versa/
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Include the 'semi-automatic' updates in the list of patches pushed
at maintainers' discretion to match current practice.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Replace reference to VIR_FREE with g_free and mention the use
of g_auto cleanup attributes that eliminate most of label use.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Prefer G_GNUC_PRINTF.
Also, pick another example than virAsprintf since it may get
removed in the future.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Recommend GString for generic strings and virBuffer for strings
that need helpers for other uses, like XML or command line
formatting.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Recommend g_str(n)dup instead of VIR_STRDUP.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Document the preferred alternatives to existing libvirt macros for
allocating strings. These cannot be deleted just yet because
converting them will require a lot of work.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Document the preferred alternatives to existing libvirt macros for
memory allocation. These cannot be deleted just yet because
converting them will require a lot of work.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Mention all the __attribute__ annotations we use to make the compiler
and/or the static analysis tools understand the code better.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Mention the various ATTRIBUTE* macros and ARRAY_CARDINALITY
that were removed earlier.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Mention a more complex example.
Invoke the test without 'make' since the mentioned example
does not seem to be working anymore.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Our HACKING file is clear about requiring submission from a git
checkout, which automatically enables -Werror.
Remove the mentions of explicitly enabling it to alleviate
the collective cognitive encumbrance.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Namely:
* holding up the first-time patch submissions for moderation,
which might cause first-time submitters to question the process
* not CC-ing individual developers
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
This tool takes care of many of the tedious parts of submitting
a patch. Mention it first, above the "manual" way using
git send-email.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
It has been enabled by default for over three years now:
commit 5d2a30d7d8777319c745804f040fa405d02169ce
Author: Junio C Hamano <gitster@pobox.com>
CommitDate: 2016-04-03 10:29:22 -0700
Merge branch 'mm/diff-renames-default'
5d2a30d7d8
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Some people from IBM does not use 'ibm.com' domain emails.
They use personal or other domains.
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Some people from IBM does not use 'ibm.com' domain emails.
Suggested-by: Leonardo Augusto Guimarães Garcia <lagarcia@br.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
The log filters have supported the use of a "+" before the source match
string to request that a stack trace be emitted for every log message:
commit 548563956e
Author: Daniel P. Berrange <berrange@redhat.com>
Date: Wed May 9 15:18:56 2012 +0100
Allow stack traces to be included with log messages
Sometimes it is useful to see the callpath for log messages.
This change enhances the log filter syntax so that stack traces
can be show by setting '1:+NAME' instead of '1:NAME'.
With the huge & ever increasing number of logging statements per file,
this will be incredibly verbose and have a major performance penalty.
This makes the feature impractical to use widely and as such it is not
worth the code maint cost.
Removing this seldom used feature allows us to drop the 'execinfo'
module in gnulib which provides the backtrace() function which doesn't
exist on non-Linux.
Users who want to get stack traces of parts of libvirt can use GDB,
or systemtap for live tracing with minimal perf impact.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit adds resolution element with parameters 'x' and 'y' into video
XML domain group definition. Both, properties were added into an element
called 'resolution' and it was added inside 'model' element. They are set
as optional. This element does not follow QEMU properties 'xres' and
'yres' format. Both HTML documentation and schema were changed too. This
commit includes a simple test case to cover resolution for QEMU video
models. The new XML format for resolution looks like:
<model ...>
<resolution x='800' y='600'/>
</model>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Move the recently deleted libvirt macros into a separate section.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Add an exception for the GLib versions of the macros we already ignore.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
g_strerror is offers the safety/correctness benefits of strerror_r, with
the API design convenience of strerror.
Use of virStrerror should be eliminated through the codebase in favour
of g_strerror.
commandhelper.c is a special case as its a tiny single threaded test
program, not linked to glib, so it just uses traditional strerror().
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Libvirt currently uses the VIR_AUTOUNREF macro for auto cleanup of
virObject instances. GLib approaches things differently with GObject,
reusing their g_autoptr() concept.
This introduces support for g_autoptr() with virObject, to facilitate
the conversion to GObject.
Only virObject classes which are currently used with VIR_AUTOREF are
updated. Any others should be converted to GObject before introducing
use of autocleanup.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
To facilitate porting over to glib, this rewrites the auto cleanup
macros to use glib's equivalent.
As a result it is now possible to use g_autoptr/VIR_AUTOPTR, and
g_auto/VIR_AUTOCLEAN, g_autofree/VIR_AUTOFREE interchangably, regardless
of which macros were used to declare the cleanup types.
Within the scope of any single method, code must remain consistent
using either GLib or Libvirt macros, never mixing both. New code
must preferentially use the GLib macros, and old code will be
converted incrementally.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Convert the string duplication APIs to use the g_strdup family of APIs.
We previously used the 'strdup-posix' gnulib module because mingw does
not set errno to ENOMEM on failure
We previously used the 'strndup' gnulib module because this function
does not exist on mingw.
We previously used the 'vasprintf' gnulib module because of many GNU
supported format specifiers not working on non-Linux platforms. glib's
own equivalent standardizes on GNU format specifiers too.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Convert the VIR_ALLOC family of APIs with use of the g_malloc family of
APIs. Use of VIR_ALLOC related functions should be incrementally phased
out over time, allowing return value checks to be dropped. Use of
VIR_FREE should be replaced with auto-cleanup whenever possible.
We previously used the 'calloc-posix' gnulib module because mingw does
not set errno to ENOMEM on failure.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Add the main glib.h to internal.h so that all common code can use it.
Historically glib allowed applications to register an alternative
memory allocator, so mixing g_malloc/g_free with malloc/free was not
safe.
This was feature was dropped in 2.46.0 with:
commit 3be6ed60aa58095691bd697344765e715a327fc1
Author: Alexander Larsson <alexl@redhat.com>
Date: Sat Jun 27 18:38:42 2015 +0200
Deprecate and drop support for memory vtables
Applications are still encourged to match g_malloc/g_free, but it is no
longer a mandatory requirement for correctness, just stylistic. This is
explicitly clarified in
commit 1f24b36607bf708f037396014b2cdbc08d67b275
Author: Daniel P. Berrangé <berrange@redhat.com>
Date: Thu Sep 5 14:37:54 2019 +0100
gmem: clarify that g_malloc always uses the system allocator
Applications can still use custom allocators in general, but they must
do this by linking to a library that replaces the core malloc/free
implemenentation entirely, instead of via a glib specific call.
This means that libvirt does not need to be concerned about use of
g_malloc/g_free causing an ABI change in the public libary, and can
avoid memory copying when talking to external libraries.
This patch probes for glib, which provides the foundation layer with
a collection of data structures, helper APIs, and platform portability
logic.
Later patches will introduce linkage to gobject which provides the
object type system, built on glib, and gio which providing objects
for various interesting tasks, most notably including DBus client
and server support and portable sockets APIs, but much more too.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Libxl driver did not support setup additional acpi firmware to xen
guest. It is necessary to activate OEM Windows installs. This patch
allow to define in OS section acpi table param (which supported domain
common schema).
Signed-off-by: Ivan Kardykov <kardykov@tabit.pro>
[added info to docs/formatdomain.html.in]
Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
This patch adds the implementation of the ccf-assist pSeries
feature, based on the QEMU_CAPS_MACHINE_PSERIES_CAP_CCF_ASSIST
capability that was added in the previous patch.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This device is a very simple framebuffer device supported by qemu that
is mostly intended to use as a boot framebuffer in conjunction with a
vgpu. However, there is also a standalone ramfb device that can be used
as a primary display device and is useful for e.g. aarch64 guests where
different memory mappings between the host and guest can prevent use of
other devices with framebuffers such as virtio-vga.
https://bugzilla.redhat.com/show_bug.cgi?id=1679680 describes the
issues in more detail.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
There are various ideas / plans floating around for future libvirt work,
some of which is actively in progress. Historically we've never captured
this kind of information anywhere, except in mailing list discussions.
In particular guidelines in hacking.html.in don't appear until a policy
is actively applied.
This patch attempts to fill the documentation gap, by creating a new
"strategy" page which outlines the general vision for some notable
future changes. The key thing to note is that none of the stuff on this
page is guaranteed, plans may change as new information arises. IOW this
is a "best guess" as to the desired future.
This doc has focused on three areas, related to the topic of language
usage / consolidation
- Use of non-C languages for the library, daemons or helper tools
- Replacement of autotools with meson
- Use of RST and Sphinx for documentation (website + man pages)
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The NVDIMM backend file can be a normal file or a real device file,
Current xml example and explainations may mislead users. So add more
info about the NVDIMM related elements and update the xml examples.
Signed-off-by: Luyao Zhong <luyao.zhong@intel.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Blacklist Perl and Shell code in favour of Python for
sake of readability and portability.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Some of the typed parameter APIs are exported publicly, but the
implementation was intermixed with private functions. Introduce
virtypedparam-public.c, move all public API functions there and purge
the comments stating that some functions are public.
This will decrease the likelihood of messing up the expectations as well
as it will become more clear which of them are actually public.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
vhost-user-gpu helper takes --render-node option to specify on which
GPU should the renderning be done.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Accept a new driver name attribute to specify usage of helper process, ex:
<video>
<driver name='vhostuser'/>
<model type='virtio'/>
</video>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Python3 versions less than 3.7 have very unhelpful handling
of the C locale where they assume data is 7-bit only. This
violates POSIX which requires the C locale to be 8-bit clean.
Python3 >= 3.7 now assumes that the C locale is always UTF-8.
Set env variables to force LC_CTYPE to en_US.UTF-8 so that
we get UTF-8 handling on all python versions. Note we do
not use C.UTF-8 since not all C libraries support that.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Commit 50dfabbb59 forgot to add this important bit on how to check that
all the changes to the XML actually worked.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The OOM handling requires special build time options which we never
enable in our CI. Even once enabled the tests are incredibly slow and
typically require manual inspection of the results to weed out false
positives.
Since there was previous agreement to switch to abort on OOM in libvirt
code, there's no point continuing to keep the unused OOM testing code.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Rewrite some parts for clarity, elaborate the meaning of some of the XML
attributes. And where necessary, distinguish that we're dealing with
two different XML documents here:
- the domainCapabilities XML, to detect the host "hypervisor"
(QEMU/KVM) capabilities, and what libvirt knows about them.
- the guest XML definition, i.e. what features a guest can use, based
on the capabilities (of QEMU and libvirt and the host) reported in
the domainCapabilities XML.
Signed-off-by: Kashyap Chamarthy <kchamart@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Although <interface type='ethernet'> has always been able to use an
existing tap device, this is just a coincidence due to the fact that
the same ioctl is used to create a new tap device or get a handle to
an existing device.
Even then, once we have the handle to the device, we still insist on
doing extra setup to it (setting the MAC address and IFF_UP). That
*might* be okay if libvirtd is running as a privileged process, but if
libvirtd is running as an unprivileged user, those attempted
modifications to the tap device will fail (yes, even if the tap is set
to be owned by the user running libvirtd). We could avoid this if we
knew that the device already existed, but as stated above, an existing
device and new device are both accessed in the same manner, and
anyway, we need to preserve existing behavior for those who are
already using pre-existing devices with privileged libvirtd (and
allowing/expecting libvirt to configure the pre-existing device).
In order to cleanly support the idea of using a pre-existing and
pre-configured tap device, this patch introduces a new optional
attribute "managed" for the interface <target> element. This
attribute is only valid for <interface type='ethernet'> (since all
other interface types have mandatory config that doesn't apply in the
case where we expect the tap device to be setup before we
get it). The syntax would look something like this:
<interface type='ethernet'>
<target dev='mytap0' managed='no'/>
...
</interface>
This patch just adds managed to the grammar and parser for <target>,
but has no functionality behind it.
(NB: when managed='no' (the default when not specified is 'yes'), the
target dev is always a name explicitly provided, so we don't
auto-remove it from the config just because it starts with "vnet"
(VIR_NET_GENERATED_TAP_PREFIX); this makes it possible to use the
same pattern of names that libvirt itself uses when it automatically
creates the tap devices.)
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
We currently generate two completely separate API references for the
libvirt public API. One at 'docs/html/' and one at 'docs/devhelp/'.
Both are published on the website, but we only link to content in
the 'docs/html/' pages.
Both are installed in the libvirt-docs sub-RPM, with a full copy
of the website including 'docs/html/' in /usr/share/docs/libvirt-docs,
while the 'docs/devhelp/' content goes to /usr/share/gtk-doc/. The
latter was broken for years until:
commit ca6f602546
Author: Andrea Bolognani <abologna@redhat.com>
Date: Fri May 10 14:54:52 2019 +0200
docs: Introduce $(devhelphtml_generated)
Our XSLT magic generates one Devhelp-compatible HTML file
per documentation module, but so far we have only shipped
and installed documentation for virterror.
Now that we have $(modules), however, we can generate the
list of files the same way we do for regular documentation
and make sure we always ship and install everything.
That this bug went unnoticed for so long is a sign of how few
people are using the devhelp docs. The only commits to the devhelp
code since it was first introduced have been fixing various build
problems that hit.
The only obvious difference between the two sets of docs is the CSS
styling in use. Overall devhelp does not look compelling enough to
justify having two duplicated sets of API docs. Eliminating it will
reduce the amount of XSL code we are carrying in the tree which is
an attractive benefit.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The xenapi driver has not seen any development since its initial
contribution 9 years ago. There have been no bug reports, no patches,
and no queries about the driver on the developer or user mailing lists.
Remove the driver from the libvirt sources.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The (pre-copy) bandwidth was historically the only bandwidth we
supported and thus it is called just "bandwidth" in all other places.
E.g., virsh migrate-setspeed or in the migration typed parameter name.
Let's make the new option for virsh migrate consistent.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Use the templates at https://github.com/terinjokes/StickerConstructorSpec
to provide square and hexagon logos for libvirt, suitable for printing
as stickers.
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
According to HTML specification, <a name=''> works in HTML4, but
<a id=''> works in both HTML4 and HTML5. This is followed even in
docs/page.xsl where HTML bookmark links are generated only for
those anchors which have @id attribute.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
The QEMU driver now supports Direct Mode for Hyper-V Synthetic timers
for Hyper-V guests.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Support 'Direct Mode' for Hyper-V Synthetic Timers in domain config.
Make it 'stimer' enlightenment option as it is not a separate thing.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Use 'id' instead of 'name' for anchors which adds the hidden clickable
headerlink helper so it's way simpler to link to a specific part of the
docs.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This reverts commit 47cbc92987.
The section is no longer correct when the patch switching to gnulib's
make coverage was reverted.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Acked-By: Eric Blake <eblake@redhat.com>
QEMU version 2.12.1 introduced a performance feature under commit
be7773268d98 ("target-i386: add KVM_HINTS_DEDICATED performance hint")
This patch adds a new KVM feature 'hint-dedicated' to set this performance
hint for KVM guests. The feature is off by default.
To enable this hint and have libvirt add "-cpu host,kvm-hint-dedicated=on"
to the QEMU command line, the following XML code needs to be added to the
guest's domain description in conjunction with CPU mode='host-passthrough'.
<features>
<kvm>
<hint-dedicated state='on'/>
</kvm>
</features>
...
<cpu mode='host-passthrough ... />
Signed-off-by: Wim ten Have <wim.ten.have@oracle.com>
Signed-off-by: Menno Lageman <menno.lageman@oracle.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Historically URIs handled by the remote driver will always connect to
the libvirtd UNIX socket. There will now be one daemon per driver, and
each of these has its own UNIX sockets to connect to.
It will still be possible to run the traditional monolithic libvirtd
though, which will have the original UNIX socket path.
In addition there is a virproxyd daemon that doesn't run any drivers,
but provides proxying for clients accessing libvirt over IP sockets, or
tunnelling to the legacy libvirtd UNIX socket path.
Finally when running inside a daemon, the remote driver must not reject
connections unconditionally. For example, the QEMU driver needs to be
able to connect to the network driver. The remote driver must thus be
willing to handle connections even when inside the daemon, provided no
local driver is registered.
This refactoring enables the remote driver to be able to connect to the
per-driver daemons. The URI parameter "mode" accepts the values "auto",
"direct" and "legacy" to control which daemons are connected to.
The client side libvirt.conf config file also supports a "remote_mode"
setting which is used if the URI parameter is not set.
If neither the config file or URI parameter set a mode, then "auto"
is used, whereby the client looks to see which sockets actually exist
right now.
The remote driver will only ever spawn the per-driver daemons, or
the legacy libvirtd. It won't ever try to spawn virtproxyd, as
that is only there for IP based connectivity, or for access from
legacy remote clients.
If connecting to a remote host over any kind of ssh tunnel, for now we
must assume only the legacy socket exists. A future patch will introduce
a netcat replacement that is tailored for libvirt to make remote
tunnelling easier.
The configure arg '--with-remote-default-mode=legacy|direct' allows
packagers to set a default at build time. If not given, it will default
to legacy mode.
Eventually the default will switch to direct mode. Distros can choose
to do the switch earlier if desired. The main blocker is testing and
suitable SELinux/AppArmor policies.
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
host-passthrough documentation menions that the source and destination
hosts are not identical in both hardware and configuration. Configuration
actually includes microcode version and QEMU version, but this is not
clear so make it explicit
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20190802125415.15227-1-pbonzini@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
