It is only supported for virtio adapters.
Silently drop it if it was specified for other models,
as is done for other virtio attributes.
Also mention this in the documentation.
https://bugzilla.redhat.com/show_bug.cgi?id=1147195
Commit id '652a2ec6' introduced two new node device capability flags
and the ability to use those flags as a way to search for a specific
subset of a 'scsi_host' device - namely a 'fc_host' and/or 'vports'.
The code modified the virNodeDeviceCapMatch whichs allows for searching
using the 'virsh nodedev-list [cap]' via virConnectListAllNodeDevices.
However, the original patches did not account for other searches for
the same capability key from virNodeListDevices using virNodeDeviceHasCap.
Since 'fc_host' and 'vports' are self defined bits of a 'scsi_host'
device mere string comparison against the basic/root type is not
sufficient.
This patch adds the check for the 'fc_host' and 'vports' bits within
a 'scsi_host' device and allows the following python code to find the
capabilities for the device:
import libvirt
conn = libvirt.openReadOnly('qemu:///system')
fc = conn.listDevices('fc_host', 0)
print(fc)
fc = conn.listDevices('vports', 0)
print(fc)
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Add the missing jump to thje error label. The error message shouldn't
ever be triggered though as it's called only on pre-selected nodes.
Signed-off-by: Luyao Huang <lhuang@redhat.com>
Extract the logic to determine which nodeset has to be used for a domain
from the formatting step so that it can be reused separately when the
nodeset is used in a different way.
https://bugzilla.redhat.com/show_bug.cgi?id=1170492
In one of our previous commits (dc8b7ce7) we've done a functional
change even though it was intended as pure refactor. The problem is,
that the following XML:
<vcpu placement='static' current='2'>6</vcpu>
<cputune>
<emulatorpin cpuset='1-3'/>
</cputune>
<numatune>
<memory mode='strict' placement='auto'/>
</numatune>
gets translated into this one:
<vcpu placement='auto' current='2'>6</vcpu>
<cputune>
<emulatorpin cpuset='1-3'/>
</cputune>
<numatune>
<memory mode='strict' placement='auto'/>
</numatune>
We should not change the vcpu placement mode. Moreover, we're doing
something similar in case of emulatorpin and iothreadpin. If they were
set, but vcpu placement was auto, we've mistakenly removed them from
the domain XML even though we are able to set them independently on
vcpus.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Do the allocation first, then add the actual device.
The second part should never fail. This is good
for live hotplug where we don't want to remove the device
on OOM after the monitor command succeeded.
The only change in behavior is that on failure, the
vmdef->consoles array is freed, not just the first console.
Currently when launching the LXC controller we first write out
the plain, inactive XML configuration, then launch the controller,
then replace the file with the live status XML configuration.
By good fortune this hasn't caused any problems other than some
misleading error messages during failure scenarios.
This simplifies the code so it only writes out the XML once and
always writes the live status XML. To do this we need to handshake
with the child process, to make execution pause just before exec()
so we can write the XML status with the child PID present.
Previously the function returned either -1 in case of an error or 0 on
success. However, we should also distinguish between a case we
successfully added a controller and a case there wasn't a need to add any
controller
This adds a new "localOnly" attribute on the domain element of the
network xml. With this set to "yes", DNS requests under that domain
will only be resolved by libvirt's dnsmasq, never forwarded upstream.
This was how it worked before commit f69a6b987d, and I found that
functionality useful. For example, I have my host's NetworkManager
dnsmasq configured to forward that domain to libvirt's dnsmasq, so I can
easily resolve guest names from outside. But if libvirt's dnsmasq
doesn't know a name and forwards it to the host, I'd get an endless
forwarding loop. Now I can set localOnly="yes" to prevent the loop.
Signed-off-by: Josh Stone <jistone@redhat.com>
Ploop is a pseudo device which makeit possible to access
to an image in a file as a block device. Like loop devices,
but with additional features, like snapshots, write tracker
and without double-caching.
It used in PCS for containers and in OpenVZ. You can manage
ploop devices and images with ploop utility
(http://git.openvz.org/?p=ploop).
Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
Commit id 'ca481a6f' added virNetworkRouteDefFree which may be called
in an error path from lxcAddNetworkRouteDefinition with 'route = NULL'.
So just add the (!def) at the top to resolve.
Commit id 'aa2cc721' added calls to virSocketAddrFormat but did not
check for a NULL (error) return which could lead to bad output
in the XML file. Need to check for NULL return and cause failure.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Moving code for parsing and formatting network routes to
networkcommon_conf helps reusing those routes for domains. The route
definition has been hidden to help reducing the number of unnecessary
checks in the format function.
https://bugzilla.redhat.com/show_bug.cgi?id=1182486
When updating a network and adding new ip-dhcp-host entry, the deamon
may crash. The problem is, we iterate over existing <host/> entries
trying to compare MAC addresses to see if there's already an existing
rule. However, not all entries are required to have MAC address. For
instance, the following is perfectly valid entry:
<host id='00:04:58:fd:e4:15:1b:09:4c:0e:09:af:e4:d3:8c:b8:ca:1e'
name='redhatipv6.redhat.com' ip='2001:db8:ca2:2::119'/>
When the checking loop iterates over this, the entry's MAC address is
accessed directly. Well, the fix is obvious - check if the address is
defined before trying to compare it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The virDomainDefineXMLFlags and virDomainCreateXML APIs both
gain new flags allowing them to be told to validate XML.
This updates all the drivers to turn on validation in the
XML parser when the flags are set
There's this function virNetDevBandwidthParse which parses the
bandwidth XML snippet. But it's not clever much. For the
following XML it allocates the virNetDevBandwidth structure even
though it's completely empty:
<bandwidth>
</bandwidth>
Later in the code there are some places where we check if
bandwidth was set or not. And since we obtained pointer from the
parsing function we think that it is when in fact it isn't.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The virDomainDefParse* and virDomainDefFormat* methods both
accept the VIR_DOMAIN_XML_* flags defined in the public API,
along with a set of other VIR_DOMAIN_XML_INTERNAL_* flags
defined in domain_conf.c.
This is seriously confusing & error prone for a number of
reasons:
- VIR_DOMAIN_XML_SECURE, VIR_DOMAIN_XML_MIGRATABLE and
VIR_DOMAIN_XML_UPDATE_CPU are only relevant for the
formatting operation
- Some of the VIR_DOMAIN_XML_INTERNAL_* flags only apply
to parse or to format, but not both.
This patch cleanly separates out the flags. There are two
distint VIR_DOMAIN_DEF_PARSE_* and VIR_DOMAIN_DEF_FORMAT_*
flags that are used by the corresponding methods. The
VIR_DOMAIN_XML_* flags received via public API calls must
be converted to the VIR_DOMAIN_DEF_FORMAT_* flags where
needed.
The various calls to virDomainDefParse which hardcoded the
use of the VIR_DOMAIN_XML_INACTIVE flag change to use the
VIR_DOMAIN_DEF_PARSE_INACTIVE flag.
The virCPUDefFormat* methods were relying on the VIR_DOMAIN_XML_*
flag definitions. It is not desirable for low level internal
functions to be coupled to flags for the public API, since they
may need to be called from several different contexts where the
flags would not be appropriate.
https://bugzilla.redhat.com/show_bug.cgi?id=1181408
When we try to hotplug a channel chr device with no target, we
will get success (which should fail) in virDomainChrDefParseXML,
because we use goto cleanup this place and return an incomplete
definition (with no target). In qemuDomainAttachChrDevice,
we add it to the domain definition, but fail to remove it from
there when chardev-add fails, because virDomainChrRemove
matches chardevices according to the target name.
The device definition is then freed in qemuDomainAttachDeviceFlags,
leaving a stale pointer in the domain definition.
Signed-off-by: Luyao Huang <lhuang@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
QEMU supports feature specification with -cpu host and we just skip
using that. Since QEMU developers themselves would like to use this
feature, this patch modifies the code to work.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1178850
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1179684
The way that we currently generate the <driver/> for <controller/> is
just madness:
<controller type='scsi' index='0' model='virtio-scsi'>
<driver queues='12'/>
<driver cmd_per_lun='123'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</controller>
It's obvious that we should be aiming at the following:
<controller type='scsi' index='0' model='virtio-scsi'>
<driver queues='12' cmd_per_lun='123'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</controller>
Signed-off-by: Luyao Huang <lhuang@redhat.com>
Make use of the ebtables functionality to be able to filter certain
parameters of icmpv6 packets. Extend the XML parser for icmpv6 types,
type ranges, codes, and code ranges. Extend the nwfilter documentation,
schema, and test cases.
Being able to filter icmpv6 types and codes helps extending the DHCP
snooper for IPv6 and filtering at least some parameters of IPv6's NDP
(Neighbor Discovery Protocol) packets. However, the filtering will not
be as good as the filtering of ARP packets since we cannot
check on IP addresses in the payload of the NDP packets.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1177194
When migrate a vm, we will generate a xml via qemuDomainDefFormatLive and
pass this xml to target libvirtd. Libvirt will use the current network
state in def->data.network.actual to generate the xml, this will make
migrate failed when we set a network type guest interface use a macvtap
network as a source in a vm then migrate vm to another host(which has the
different macvtap network settings: different interface name, bridge name...)
Add a flag check in virDomainNetDefFormat, if we set a VIR_DOMAIN_XML_MIGRATABLE
flag when call virDomainNetDefFormat, we won't get the current vm interface
state.
Signed-off-by: Luyao Huang <lhuang@redhat.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Add the possibility to have more than one IP address configured for a
domain network interface. IP addresses can also have a prefix to define
the corresponding netmask.
The <domain/> element under /capabilities/guest/arch/ can have no
child elements. If that's the case we format:
<domain type='xen'>
</domain>
instead of simpler:
<domain type='xen'/>
This commit fixes that.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
In commit d2632d60 we agreed taht we want the parsed uid to properly
overflow but only to -1, however the value was read into long and then
wrapped into uid_t. That meaned it failed on 32-bit systems.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Currently, when there is an API that's blocking with locked domain and
second API that's waiting in virDomainObjListFindByUUID() for the domain
lock (with the domain list locked) no other API can be executed on any
domain on the whole hypervisor because all would wait for the domain
list to be locked. This patch adds new optional approach to this in
which the domain is only ref'd (reference counter is incremented)
instead of being locked and is locked *after* the list itself is
unlocked. We might consider only ref'ing the domain in the future and
leaving locking on particular APIs, but that's no tonight's fairy tale.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Volume and pool formatting functions took different approaches to
unspecified uids/gids. When unknown, it is always parsed as -1, but one
of the functions formatted it as unsigned int (wrong) and one as
int (better). Due to that, our two of our XML files from tests cannot
be parsed on 32-bit machines.
RNG schema needs to be modified as well, but because both
storagepool.rng and storagevol.rng need same schema for permission
element, save some space by moving it to storagecommon.rng.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
We can change vnc password by using virDomainUpdateDeviceFlags API with
live flag. But it can't be changed with config flag. Error is reported as
below.
error: Operation not supported: persistent update of device 'graphics' is not supported
This patch supports the graphics arguments changed with config flag.
Signed-off-by: Wang Rui <moon.wangrui@huawei.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1174096
When both parameter have lockspaces present, virDomainLeaseIndex
always returns -1 even there is a lease the same with the one we
check. This is due to broken logic in 'if-else' statement.
Signed-off-by: Luyao Huang <lhuang@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1174053
Introduced by commit id '17bddc46f' - fix a libvirtd crash when
matching a network iscsi hostdev with a host iscsi hostdev.
When we use attach-device to coldplug a network iscsi hostdev,
libvirt will check if there is already a device in XML. But if
the 'b' is a host iscsi hostdev and 'a' is a network iscsi hostdev,
then libvirtd will crash in virDomainHostdevMatchSubsysSCSIiSCSI
because 'b' doesn't have a hostname.
Add a check in virDomainHostdevMatchSubsys, if the a's protocol
and b's protocol is not the same.
Following is the backtrace:
0 0x00007f850d6bc307 in virDomainHostdevMatchSubsysSCSIiSCSI at conf/domain_conf.c:10889
1 virDomainHostdevMatchSubsys at conf/domain_conf.c:10911
2 virDomainHostdevMatch at conf/domain_conf.c:10973
3 virDomainHostdevFind at conf/domain_conf.c:10998
4 0x00007f84f6a10560 in qemuDomainAttachDeviceConfig at qemu/qemu_driver.c:7223
5 qemuDomainAttachDeviceFlags at qemu/qemu_driver.c:7554
Signed-off-by: Luyao Huang <lhuang@redhat.com>
For historical reasons, only the first <console> element might be of targetType
serial, but we checked for other consoles of targetType serial in our post-parse
callback if and only if we knew the first console was serial, otherwise
the check was skipped.
This patch moves the check one level up, so first
the check for secondary console of type serial is performed and then the
rest of operations continue unchanged.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1170092
When one domain is being undefined and at the same time started, for
example, there is a possibility of a rare problem occuring.
- Thread 1 does virDomainUndefine(), has the lock, checks that the
domain is active and because it's not, calls
virDomainObjListRemove().
- Thread 2 does virDomainCreate() and tries to lock the domain.
- Thread 1 needs to lock domain list in order to remove the domain from
it, but must unlock domain first (proper order is to lock domain list
first and the domain itself second).
- Thread 2 grabs the lock, starts the domain and releases the lock.
- Thread 1 grabs the lock and removes the domain from list.
With this patch:
- The undefining domain gets marked as "to undefine" before it is
unlocked.
- If domain is found in any of the search APIs, it's returned only if
it is not marked as "to undefine". The check is done while the
domain is locked.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1150505
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
For host-passthrough CPU we don't honor the CPU
features specified in the XML, but we allow
outputting them via the UPDATE_CPU flag for dumpxml,
this gives user a rough idea of what features the CPU
might have.
After restoring a managedsave'd domain, the features
might end up in the live status XML (in /var/run) without
the model. This XML cannot be parsed by the daemon after
restart and the domain might disappear.
This fix skips formatting the features for HOST_PASSTHROUGH
when UPDATE_CPU is not specified, so the newly restored domains
and newly created snapshots won't be affected.
Note: this doesn't fix existing snapshots or already restored
running domains.
https://bugzilla.redhat.com/show_bug.cgi?id=1030793https://bugzilla.redhat.com/show_bug.cgi?id=1151885
https://bugzilla.redhat.com/show_bug.cgi?id=1171582
When we edit a negative controller address number to a device,
some of them will auto generate a controller with invalid index
number. This will make guest disappear after restart libvirtd.
Instead of allowing negative number for controller index, we
should forbid negative number in these place (we did this before,
but after f18c02ec, virStrToLong_ui changed to allow negative
number). Therefore switch to virStrToLong_uip in these places.
Signed-off-by: Luyao Huang <lhuang@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
At the time that the network driver allocates a connection to a
network, the tap device that will be used hasn't yet been created -
that will be done later by qemu (or lxc or whoever) - but if the
network has macTableManager='libvirt', then when we do get around to
creating the tap device, we will need to add an entry for it to the
network bridge's fdb (forwarding database) *and* turn off learning and
unicast_flood for that tap device in the bridge's sysfs settings. This
means that qemu needs to know both the bridge name as well as the
setting of macTableManager, so we either need to create a new API to
retrieve that info, or just pass it back in the ActualNetDef that is
created during networkAllocateActualDevice. We choose the latter
method, since it's already done for the bridge device, and it has the
side effect of making the information available in domain status.
(NB: in the future, I think that the tap device should actually be
created by networkAllocateActualDevice(), as that will solve several
other problems, but that is a battle for another day, and this
information will still be useful outside the network driver)
When the actualType of a virDomainNetDef is "network", it means that
we are connecting to a libvirt-managed network (routed, natted, or
isolated) which does use a bridge device (created by libvirt). In the
past we have required drivers such as qemu to call the public API to
retrieve the bridge name in this case (even though it is available in
the NetDef's ActualNetDef if the actualType is "bridge" (i.e., an
externally-created bridge that isn't managed by libvirt). There is no
real reason for this difference, and as a matter of fact it
complicates things for qemu. Also, there is another bridge-related
attribute (macTableManager) that will need to be available in both
cases, so this makes things consistent.
In order to avoid problems when restarting libvirtd after an update
from an older version that *doesn't* store the network's bridgename in
the ActualNetDef, we also need to put it in place during
networkNotifyActualDevice() (this function is run for each interface
of each domain whenever libvirtd is restarted).
Along with making the bridge name available in the internal object, it
is also now reported in the <source> element of the <interface> state
XML (or the <actual> subelement in the internally-stored format).
The one oddity about this change is that usually there is a separate
union for every different "type" in a higher level object (e.g. in the
case of a virDomainNetDef there are separate "network" and "bridge"
members of the union that pivots on the type), but in this case
network and bridge types both have exactly the same attributes, so the
"bridge" member is used for both type==network and type==bridge.
The macTableManager attribute of a network's bridge subelement tells
libvirt how the bridge's MAC address table (used to determine the
egress port for packets) is managed. In the default mode, "kernel",
management is left to the kernel, which usually determines entries in
part by turning on promiscuous mode on all ports of the bridge,
flooding packets to all ports when the correct destination is unknown,
and adding/removing entries to the fdb as it sees incoming traffic
from particular MAC addresses. In "libvirt" mode, libvirt turns off
learning and flooding on all the bridge ports connected to guest
domain interfaces, and adds/removes entries according to the MAC
addresses in the domain interface configurations. A side effect of
turning off learning and unicast_flood on the ports of a bridge is
that (with Linux kernel 3.17 and newer), the kernel can automatically
turn off promiscuous mode on one or more of the bridge's ports
(usually only the one interface that is used to connect the bridge to
the physical network). The result is better performance (because
packets aren't being flooded to all ports, and can be dropped earlier
when they are of no interest) and slightly better security (a guest
can still send out packets with a spoofed source MAC address, but will
only receive traffic intended for the guest interface's configured MAC
address).
The attribute looks like this in the configuration:
<network>
<name>test</name>
<bridge name='br0' macTableManager='libvirt'/>
...
This patch only adds the config knob, documentation, and test
cases. The functionality behind this knob is added in later patches.
Since virStreamFree will call virObjectUnref anyway, let's just use that
directly so as to avoid the possibility that we inadvertently clear out
a pending error message when using the public API.
Since virStoragePoolFree will call virObjectUnref anyway, let's just use that
directly so as to avoid the possibility that we inadvertently clear out
a pending error message when using the public API.
Since virNodeDeviceFree will call virObjectUnref anyway, let's just use that
directly so as to avoid the possibility that we inadvertently clear out
a pending error message when using the public API.
Since virNetworkFree will call virObjectUnref anyway, let's just use that
directly so as to avoid the possibility that we inadvertently clear out
a pending error message when using the public API.
Since virDomainFree will call virObjectUnref anyway, let's just use that
directly so as to avoid the possibility that we inadvertently clear out
a pending error message when using the public API.
Partially reverts commit 5754dbd.
The code in the specfile adds a MAC address to every <bridge>,
even for <forward mode='bridge'> for which we don't support
changing MAC addresses.
Remove it completely. For new networks, we have been adding
MAC addresses on definition/creation since the commit mentioned above.
For existing networks (pre-0.9.0), the MAC is added by this commit.
https://bugzilla.redhat.com/show_bug.cgi?id=1156367
Adding non-existing nwfilter to a network interface device without any
nwfilter specified will crash libvirt daemon with segfault. The reason is
that the nwfilter is not found an libvirt will try to restore old
nwfilter configuration but there is no nwfilter specified.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
The function virNetworkObjListExport() in network_conf.c had a call to
the public API virNetworkFree() which was causing a link error:
CCLD libvirt_driver_vbox_network_impl.la
./.libs/libvirt_conf.a(libvirt_conf_la-network_conf.o): In function `virNetworkObjListExport':
/home/laine/devel/libvirt/src/conf/network_conf.c:4496: undefined reference to `virNetworkFree'
This would happen when I added
#include "network_conf.h"
into domain_conf.h, then attempted to call a new function from that
file (and enum converter, similar to virNetworkForwardTypeToString())
In the end, virNetworkFree() ends up just calling virObjectUnref(obj)
anyway (after clearing all pending errors, which we probably *don't*
want to do in the cleanup of a utility function), so this is likely
more correct than the original code as well.
Commit id '0d36a5d05' modified the code slightly, but removed the
return value check thus causing Coverity to complain that this call
was the only one where the return value wasn't checked. Since nothing
was done previously if there was a failure, just use ignore_value here
to pacify Coverity
https://bugzilla.redhat.com/show_bug.cgi?id=1159180
The virStoragePoolSourceFindDuplicate only checks the incoming definition
against the same type of pool as the def; however, for "scsi_host" and
"fc_host" adapter pools, it's possible that either some pool "scsi_host"
adapter definition is already using the scsi_hostN that the "fc_host"
adapter definition wants to use or some "fc_host" pool adapter definition
is using a vHBA scsi_hostN or parent scsi_hostN that an incoming "scsi_host"
definition is trying to use.
This patch adds the mismatched type checks and adds extraneous comments
to describe what each check is determining.
This patch also modifies the documentation to be describe what scsi_hostN
devices a "scsi_host" source adapter should use and which to avoid. It also
updates the parent definition to specifically call out that for mixed
environments it's better to define which parent to use so that the duplicate
pool checks can be done properly.
https://bugzilla.redhat.com/show_bug.cgi?id=1159180
Move the API from the backend to storage_conf and rename it to
virStoragePoolGetVhbaSCSIHostParent. A future patch will need to
use this functionality from storage_conf
Resolving symlinks can fail before mounting any file system if one file
system depends on another being mounted. Symlinks are now resolved in
two passes:
* Before any file system is mounted, but then we are more gentle if
the source path can't be accessed
* Right before mounting a file system, so that we are sure that we
have the resolved path... but then if it can't be accessed we raise
an error.
Add attribute to set vgamem_mb parameter of QXL device for QEMU. This
value sets the size of VGA framebuffer for QXL device. Default value in
QEMU is 8MB so reuse it also in libvirt to not break things.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1076098
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
The vram attribute was introduced to set the video memory but it is
usable only for few hypervisors excluding QEMU/KVM and the old XEN
driver. Only in case of QEMU the vram was used for QXL.
This patch updates the documentation to reflect current code in libvirt
and also changes the cases when we will set the default vram attribute.
It also fixes existing strange default value for VGA devices 9MB to 16MB
because the video ram should be rounded to power of two.
The change of default value could affect migrations but I found out that
QEMU always round the video ram to power of two internally so it's safe
to change the default value to the next closest power of two and also
silently correct every domain XML definition. And it's also safe because
we don't pass the value to QEMU.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1076098
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Get mounted filesystems list, which contains hardware info of disks and its
controllers, from QEMU guest agent 2.2+. Then, convert the hardware info
to corresponding device aliases for the disks.
Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
As qemu is now able to notify us about change of the channel state used
for communication with the guest agent we now can more precisely track
the state of the guest agent.
To allow notifying management apps this patch implements a new event
that will be triggered on changes of the guest agent state.
To be able to express some use cases of the RBD backing with libvirt, we
need to be able to specify a config file for the RBD client to qemu as
that is one of the commonly used options.
Some storage systems have internal support for snapshots. Libvirt should
be able to select a correct snapshot when starting a VM.
This patch adds a XML element to select a storage source snapshot for
the RBD protocol which supports this feature.
To track state of virtio channels this patch adds a new output-only
attribute called 'state' to the <target> element of virtio channels.
This will be later populated with the guest state of the channel.
I noticed this while working on qemuDomainGetBlockInfo. Assigning
a bool value to an int variable compiles fine, but raises red flags
on the maintenance front as it becomes too easy to assign -1 or 2
or any other non-bool value to the same variable.
* cfg.mk (sc_prohibit_int_assign_bool): New rule.
* src/conf/snapshot_conf.c (virDomainSnapshotRedefinePrep): Fix
offenders.
* src/qemu/qemu_driver.c (qemuDomainGetBlockInfo)
(qemuDomainSnapshotCreateXML): Likewise.
* src/test/test_driver.c (testDomainSnapshotAlignDisks):
Likewise.
* src/util/vircgroup.c (virCgroupSupportsCpuBW): Likewise.
* src/util/virpci.c (virPCIDeviceBindToStub): Likewise.
* src/util/virutil.c (virIsCapableVport): Likewise.
* tools/virsh-domain-monitor.c (cmdDomMemStat): Likewise.
* tools/virsh-domain.c (cmdBlockResize, cmdScreenshot)
(cmdInjectNMI, cmdSendKey, cmdSendProcessSignal)
(cmdDetachInterface): Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Ethernet interfaces in libvirt currently do not support bandwidth setting.
For example, following xml file for an interface will not apply these
settings to corresponding qdiscs.
<interface type="ethernet">
<mac address="02:36:1d:18:2a:e4"/>
<model type="virtio"/>
<script path=""/>
<target dev="tap361d182a-e4"/>
<bandwidth>
<inbound average="984" peak="1024" burst="64"/>
<outbound average="2000" peak="2048" burst="128"/>
</bandwidth>
</interface>
Signed-off-by: Anirban Chakraborty <abchak@juniper.net>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1160926
Introduce a 'managed' attribute to allow libvirt to decide whether to
delete a vHBA vport created via external means such as nodedev-create.
The code currently decides whether to delete the vHBA based solely on
whether the parent was provided at creation time. However, that may not
be the desired action, so rather than delete and force someone to create
another vHBA via an additional nodedev-create allow the configuration of
the storage pool to decide the desired action.
During createVport when libvirt does the VPORT_CREATE, set the managed
value to YES if not already set to indicate to the deleteVport code that
it should delete the vHBA when the pool is destroyed.
If libvirtd is restarted all the memory only state was lost, so for a
persistent storage pool, use the virStoragePoolSaveConfig in order to
write out the managed value.
Because we're now saving the current configuration, we need to be sure
to not save the parent in the output XML if it was undefined at start.
Saving the name would cause future starts to always use the same parent
which is not the expected result when not providing a parent. By not
providing a parent, libvirt is expected to find the best available
vHBA port for each subsequent (re)start.
At deleteVport, use the new managed value to decide whether to execute
the VPORT_DELETE. Since we no longer save the parent in memory or in
XML when provided, if it was not provided, then we have to look it up.
https://bugzilla.redhat.com/show_bug.cgi?id=1160926
Passing a copy of the storage pool adapter to a function just changes the
copy of the fields in the particular function and then when returning to
the caller those changes are discarded. While not yet biting us in the
storage clean-up case, it did cause an issue for the fchost storage pool
startup case, createVport. The issue was at startup, if no parent is found
in the XML, the code will search for the 'best available' parent and then
store that in the in memory copy of the adapter. Of course, in this case
it was a copy, so when returning to the virStorageBackendSCSIStartPool that
change was discarded (or lost) from the pool->def->source.adapter which
meant at shutdown (deleteVport), the code assumed no adapter was passed
and skipped the deletion, leaving the vHBA created by libvirt still defined
requiring an additional stop of a nodedev-destroy to remove.
Adjusted the createVport to take virStoragePoolDefPtr instead of the
adapter copy. Then use the virStoragePoolSourceAdapterPtr when processing.
A future patch will need the 'def' anyway, so this just sets up for that.
virDomainChrSourceDefIsEqual should return 'true' for
identical SPICEVMC chardevs, and those that have no source
specification.
After this change, a failed hotplug no longer leaves a stale
pointer in the domain definition.
https://bugzilla.redhat.com/show_bug.cgi?id=1162097
Modify the structure _virDomainBlockIoTuneInfo to support these the new
options.
Change the initialization of the variable expectedInfo in qemumonitorjsontest.c
to avoid compiling problem.
Add documentation about the new xml options
Signed-off-by: Matthias Gatto <matthias.gatto@outscale.com>
CPU numa topology implicitly allows memory specification in 'KiB'.
Enabling this to accept the 'unit' in which memory needs to be specified.
This now allows users to specify memory in units of choice, and
lists the same in 'KiB' -- just like other 'memory' elements in XML.
<numa>
<cell cpus='0-3' memory='1024' unit='MiB' />
<cell cpus='4-7' memory='1024' unit='MiB' />
</numa>
Also augment test cases to correctly model NUMA memory specification.
This adds the tag 'unit="KiB"' for memory attribute in NUMA cells.
Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Commit 01b4de2b9f abstracts virDomainParseMemory()
for use by other functions in domain_conf.c
Extend the same for use, for functions outside of this file.
Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
As reviewing patches upstream it occurred to me, that we have two
functions doing nearly the same: virDomainParseMemory which
expects XML in the following format:
<memory unit='MiB'>1337</memory>
The other function being virDomainHugepagesParseXML expecting the
following format:
<someElement size='1337' unit='MiB'/>
It wouldn't matter to have two functions handle two different
scenarios like this if we could only not copy code that handles
32bit arches around. So this code merges the common parts into
one by inventing new @units_xpath argument to
virDomainParseMemory which allows overriding the default location
of @unit attribute in XML. With this change both scenarios above
can be parsed with virDomainParseMemory.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
PowerISA allows processors to run VMs in binary compatibility ("compat")
mode supporting an older version of ISA. QEMU has recently added support to
explicitly denote a VM running in compatibility mode through commit 6d9412ea
& 8dfa3a5e85. Now, a "compat" mode VM can be run by invoking this qemu
commandline on a POWER8 host: -cpu host,compat=power7.
This patch allows libvirt to exploit cpu mode 'host-model' to describe this
new mode for PowerKVM guests. For example, when a user wants to request a
power7 vm to run in compatibility mode on a Power8 host, this can be
described in XML as follows :
<cpu mode='host-model'>
<model>power7</model>
</cpu>
Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com>
Signed-off-by: Li Zhang <zhlcindy@linux.vnet.ibm.com>
Signed-off-by: Pradipta Kr. Banerjee <bpradip@in.ibm.com>
Acked-by: Michal Privoznik <mprivozn@redhat.com>
This adds support for PowerPC Little Endian architecture.,
and allows libvirt to spawn VMs based on 'ppc64le' architecture.
Signed-off-by: Pradipta Kr. Banerjee <bpradip@in.ibm.com>
Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This is a reaction to Michal's fix [1] for non-NUMA systems that also
splits out conf/ out of util/ because libvirt_util shouldn't require
libvirt_conf if it is the other way around. This particular use case
worked, but we're trying to avoid it as mentioned [2], many times.
The only functions from virnuma.c that needed numatune_conf were
virDomainNumatuneNodesetIsAvailable() and virNumaSetupMemoryPolicy().
The first one should be in numatune_conf as it works with
virDomainNumatune, the second one just needs nodeset and mode, both of
which can be passed without the need of numatune_conf.
Apart from fixing that, this patch also fixes recently added
code (between commits d2460f85^..5c8515620) that doesn't support
non-contiguous nodesets. It uses new function
virNumaNodesetIsAvailable(), which doesn't need a stub as it doesn't use
any libnuma functions, to check if every specified nodeset is available.
[1] https://www.redhat.com/archives/libvir-list/2014-November/msg00118.html
[2] http://www.redhat.com/archives/libvir-list/2011-June/msg01040.html
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Domain memory elements such as max_balloon and cur_balloon are
implemented as 'unsigned long long', whereas the 'memory' element
in NUMA cells is implemented as 'unsigned int'.
Use the same data type (unsigned long long) for 'memory' element
in NUMA cells.
Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com>
There was no check for 'nodeset' attribute in numatune-related
elements. This patch adds validation that any nodeset specified does
not exceed maximum host node.
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Since commit 3f99d64 no new scsi_host pools can be defined
if one of the already defined scsi_host pools does not refer
to an accessible scsi_host adapter.
Relax the check by skipping over these inaccessible pools
when checking for duplicates.
If both source adapters are specified by a parent address,
just comparing the address is faster and catches even addresses
that do not refer to valid adapters.
Commit 6c9a8a4 (Oct 2014) exposed a long-standing issue on 32-bit
machines: code related to virDomainSetMemoryParameters has always
been documented as using a 64-bit limit, but it was implemented by
calling virDomainParseMemory which enforced an 'unsigned long'
limit. Since VIR_DOMAIN_MEMORY_PARAM_UNLIMITED capped to a
long is -1, but virDomainParseScaledValue no longer accepts
negative values, an attempt to use 2^53-1 as a hard memory limit
started failing the testsuite. However, the problem with capping
things artificially low has existed for much longer - ever since
commits 4888f0fb and 2e22f23 (Mar 2012) switched internal tracking
from 'unsigned long' to 'unsigned long long' (prior to that time,
the cap was a side-effect of the choice of types). We _have_ to
cap the balloon memory values, (no thanks to baked in 'unsigned long'
of API such as virDomainSetMaxMemory or virDomainGetInfo with no
counterpart API that guarantees 64-bit access to those numbers)
but memory parameters have never needed the artificial limit.
At any rate, the solution is to make the parser function gain a
parameter, and only do the reduced 32-bit cap for the values that
are constrained due to API.
* src/conf/domain_conf.h (_virDomainMemtune): Add comments.
* src/conf/domain_conf.c (virDomainParseMemory): Add parameter.
(virDomainDefParseXML): Adjust callers.
Signed-off-by: Eric Blake <eblake@redhat.com>
It makes sense for none of the callers to have negative value as an
output and, fortunately, if anyone tried defining domain with negative
memory or any other value parsed by virDomainParseScaledValue(), the
resulting value was 0. That means we can error out during parsing as
it won't break anything.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1155843
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1146837
Resolve a crash in libvirtd resulting from commit id 'a4bd62ad' (1.0.6)
which added parentaddr and unique_id to allow unique identification of
a scsi_host, but assumed that all the pool entries and the incoming
definition would be similarly defined. If the existing pool uses the
'name' attribute and an incoming pool is using the parentaddr/unique_id,
then the code will attempt to compare the existing name string against
the incoming name string which doesn't exist (is NULL) and results in
a core (STREQ).
Conversely, if the existing pool used the parentaddr/unique_id and the
to be defined pool used the name, then the comparison would be against
the parentaddr, but since the incoming pool doesn't have one - that would
leave the comparison against a parentaddr of all 0's and a unique_id of 0,
which will always comparison to fail. This means someone could define the
same source adapter for two pools
In order to resolve this, adjust the code to get the 'host#' to be used
by the storage scsi backend in order to check/start the pool and make sure
the incoming definition doesn't match any of the existing pool defs.
The mode attribute is required for the source element of vhost-user.
Thus virDomainNetDefFormat should always generate a xml with it and not
only when the mode is server.
The commit fixes the issue. And it adds a vhostuser interface in
'client' mode to qemuxml2argv-net-vhostuser.(args|xml) to test this
usecase.
Signed-off-by: Maxime Leroy <maxime.leroy@6wind.com>
Allow the Xen drivers to determine default vram values. Sane
default vaules depend on the device model being used, so the
drivers are in the best position to determine the defaults.
For the legacy xen driver, it is best to maintain the existing
logic for setting default vram values to ensure there are no
regressions. The libxl driver currently does not support
configuring a video device. Support will be added in a
subsequent patch, where the benefit of this change will be
reaped.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
This new attribute will control whether or not libvirt will pay
attention to guest notifications about changes to network device mac
addresses and receive filters. The default for this is 'no' (for
security reasons). If it is set to 'yes' *and* the specified device
model and connection support it (currently only macvtap+virtio) then
libvirt will watch for NIC_RX_FILTER_CHANGED events, and when it
receives one, it will issue a query-rx-filter command, retrieve the
result, and modify the host-side macvtap interface's mac address and
unicast/multicast filters accordingly.
The functionality behind this attribute will be in a later patch. This
patch merely adds the attribute to the top-level of a domain's
<interface> as well as to <network> and <portgroup>, and adds
documentation and schema/xml2xml tests. Rather than adding even more
test files, I've just added the net attribute in various applicable
places of existing test files.
This patch implements support for the ivshmem device in QEMU.
Signed-off-by: Maxime Leroy <maxime.leroy@6wind.com>
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
This patch adds parsing/formatting code as well as documentation for
shared memory devices. This will currently be only accessible in QEMU
using it's ivshmem device, but is designed as generic as possible to
allow future expansion for other hypervisors.
In the devices section in the domain XML users may specify:
- For shmem device using a server:
<shmem name='shmem0'>
<server path='/tmp/socket-ivshmem0'/>
<size unit='M'>32</size>
<msi vectors='32' ioeventfd='on'/>
</shmem>
- For ivshmem device not using an ivshmem server:
<shmem name='shmem1'>
<size unit='M'>32</size>
</shmem>
Most of the configuration is made optional so it also allows
specifications like:
<shmem name='shmem1/>
<shmem name='shmem2'>
<server/>
</shmem>
Signed-off-by: Maxime Leroy <maxime.leroy@6wind.com>
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
If you use public api virConnectListAllDomains() with second parameter
set to NULL to get only the number of domains you will lock out all
other operations with domains.
Introduced by commit 2c680804.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
When virConnectDomainQemuMonitorEventRegister is called with the
VIR_CONNECT_DOMAIN_QEMU_MONITOR_EVENT_REGISTER_REGEX flag,
ignore the flag instead of crashing.
https://bugzilla.redhat.com/show_bug.cgi?id=1144920
Add options for tuning segment offloading:
<driver>
<host csum='off' gso='off' tso4='off' tso6='off'
ecn='off' ufo='off'/>
<guest csum='off' tso4='off' tso6='off' ecn='off' ufo='off'/>
</driver>
which control the respective host_ and guest_ properties
of the virtio-net device.
If you have a bridge network in running domain and libvirtd is restarted
the information about host bridge interface is lost from live xml.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1140085
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This new event will use typedParameters to expose what has been actually
updated and the reason is that we can in the future extend any tunable
values or add new tunable values. With typedParameters we don't have to
worry about creating some other events, we will just use this universal
event to inform user about updates.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Cleanup virDomanDef structure from other nested structure and create
separate type definition for them.
Fix a typo in virDomainHugePage.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
- Provide an implementation for buildPool and deletePool operations
for the ZFS storage backend.
- Add VIR_STORAGE_POOL_SOURCE_DEVICE flag to ZFS pool poolOptions
as now we can specify devices to build pool from
- storagepool.rng: add an optional 'sourceinfodev' to 'sourcezfs' and
add an optional 'target' to 'poolzfs' entity
- Add a couple of tests to storagepoolxml2xmltest
Check to see if the UEFI binary mentioned in qemu.conf actually
exists, and if so expose it in domcapabilities like
<loader ...>
<value>/path/to/ovmf</value>
</loader>
We introduce some generic domcaps infrastructure for handling
a dynamic list of string values, it may be of use for future bits.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
As of 542899168c we learned libvirt to use UEFI for domains.
However, management applications may firstly query if libvirt
supports it. And this is where virConnectGetDomainCapabilities()
API comes handy.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
For tuning the network, alternative devices
for creating tap and vhost devices can be specified via:
<backend tap='/dev/net/tun' vhost='/dev/net-vhost'/>
Instead of checking upfront if the <driver> element will be needed
in a big condition, just format all the attributes into a string
and output the <driver> element if the string is not empty.
We already are checking for negative value, reporting an error, but
using wrong function and the check only succeeds when a value that
cannot be converted to number successfully is encountered. This patch
provides just a minor change in call of the right version
of function virStrToLong.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1138539
https://bugzilla.redhat.com/show_bug.cgi?id=1101574
Add an option 'iothreadpin' to the <cpuset> to allow for setting the
CPU affinity for each IOThread.
The iothreadspin will mimic the vcpupin with respect to being able to
assign each iothread to a specific CPU, although iothreads ids start
at 1 while vcpu ids start at 0. This matches the iothread naming scheme.
When spanning tree protocol is allowed in bridge settings, forward delay
value is set as well (default is 0 if omitted). Until now, there was no
check for delay value validity. Delay makes sense only as a positive
numerical value.
Note: However, even if you provide positive numerical value, brctl
utility only uses values from range <2,30>, so the number provided can
be modified (kernel most likely) to fall within this range.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1125764
Seems when commit id 'ea130e3b' added the checks to ensure each of
the hard_limit, soft_limit, and swap_hard_limit wasn't set at
VIR_DOMAIN_MEMORY_PARAM_UNLIMITED - a copy/paste error of using
the 'hard_limit' for each comparison was done. Adjust the code.
If a (floppy) drive isn't selected for snapshot explicitly and is empty
don't try to snapshot it. For external snapshots this would fail as we
can't generate a name for the snapshot from an empty drive.
Reported-by: Pavel Hrdina <phrdina@redhat.com>
The code compares def->forwarders when deciding to return 0 at a
couple of points, then uses "def->nfwds" as a way to index into
the def->forwarders array. That reference results in Coverity
complaining that def->forwarders being NULL was checked as part
of an arithmetic OR operation where failure could be any one 5
conditions, but that is not checked when entering the loop to
dereference the array. Changing the comparisons to use nfwds
will clear the warnings
Signed-off-by: John Ferlan <jferlan@redhat.com>
When using split UEFI image, it may come handy if libvirt manages per
domain _VARS file automatically. While the _CODE file is RO and can be
shared among multiple domains, you certainly don't want to do that on
the _VARS file. This latter one needs to be per domain. So at the
domain startup process, if it's determined that domain needs _VARS
file it's copied from this master _VARS file. The location of the
master file is configurable in qemu.conf.
Temporary, on per domain basis the location of master NVRAM file can
be overridden by this @template attribute I'm inventing to the
<nvram/> element. All it does is holding path to the master NVRAM file
from which local copy is created. If that's the case, the map in
qemu.conf is not consulted.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Up to now, users can configure BIOS via the <loader/> element. With
the upcoming implementation of UEFI this is not enough as BIOS and
UEFI are conceptually different. For instance, while BIOS is ROM, UEFI
is programmable flash (although all writes to code section are
denied). Therefore we need new attribute @type which will
differentiate the two. Then, new attribute @readonly is introduced to
reflect the fact that some images are RO.
Moreover, the OVMF (which is going to be used mostly), works in two
modes:
1) Code and UEFI variable store is mixed in one file.
2) Code and UEFI variable store is separated in two files
The latter has advantage of updating the UEFI code without losing the
configuration. However, in order to represent the latter case we need
yet another XML element: <nvram/>. Currently, it has no additional
attributes, it's just a bare element containing path to the variable
store file.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The new blockcopy API wants to reuse only a subset of the disk
hotplug parser - namely, we only care about the embedded
virStorageSourcePtr inside a <disk> XML. Strange as it may
seem, it was easier to just parse an entire disk definition,
then throw away everything but the embedded source, than it
was to disentangle the source parsing code from the rest of
the overall disk parsing function. All that I needed was a
couple of tweaks and a new internal flag that determines
whether the normally-mandatory target element can be
gracefully skipped, since everything else was already optional.
* src/conf/domain_conf.h (virDomainDiskSourceParse): New
prototype.
* src/conf/domain_conf.c (VIR_DOMAIN_XML_INTERNAL_DISK_SOURCE):
New flag.
(virDomainDiskDefParseXML): Honor flag to make target optional.
(virDomainDiskSourceParse): New function.
Signed-off-by: Eric Blake <eblake@redhat.com>
Since 9f781da69d
Resolve a libvirtd crash in virStoragePoolSourceFindDuplicate()
when there is an existing SCSI pool defined with adapter type as
'scsi_host' and defining a new SCSI pool with adapter type as
'fc_host' and parent attribute missing or vice versa.
For example, if there is an existing SCSI pool with adapter type
as 'scsi_host' defined using the following XML
<pool type='scsi'>
<name>TEST_SCSI_POOL</name>
<source>
<adapter type='scsi_host' name='scsi_host1'/>
</source>
<target>
<path>/dev/disk/by-path</path>
</target>
</pool>
When defining another SCSI pool with adapter type as 'fc_host' using the
following XML will crash libvirtd
<pool type='scsi'>
<name>TEST_SCSI_FC_POOL</name>
<source>
<adapter type='fc_host' wwnn='1234567890abcdef' wwpn='abcdef1234567890'/>
</source>
<target>
<path>/dev/disk/by-path</path>
</target>
</pool>
Same is true for the reverse case as well where there exists a SCSI pool
with adapter type as 'fc_host' and another SCSI pool is defined with
adapter type as 'scsi_host'.
This happens because for fc_host 'name' is optional attribute whereas for
scsi_host its mandatory. However the check in libvirt for finding duplicate
storage pools didn't take that into account while comparing
Signed-off-by: Pradipta Kr. Banerjee <bpradip@in.ibm.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1027096#c8
There are two ways in which security model can make it way into
<seclabel/>. One is as the @model attribute, the second one is
via security_driver knob in qemu.conf. Then, while parsing
<seclabel/> several checks and fix ups of old, stale combinations
are performed. However, iff @model is specified. They are not
done in the latter case. So it's still possible to feed libvirt
with senseless combinations (if qemu.conf is adjusted correctly).
One example of a seclabel that needs some adjustment (in case
security_driver=none in qemu.conf) is:
<seclabel type='dynamic' relabel='yes'/>
The fixup code is copied from virSecurityLabelDefParseXML
(covering the former case) into virSecurityLabelDefsParseXML
(which handles the latter case).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Our style overwhelmingly uses hanging braces (the open brace
hangs at the end of the compound condition, rather than on
its own line), with the primary exception of the top level function
body. Fix the few remaining outliers, before adding a syntax
check in a later patch.
* src/interface/interface_backend_netcf.c (netcfStateReload)
(netcfInterfaceClose, netcf_to_vir_err): Correct use of { in
compound statement.
* src/conf/domain_conf.c (virDomainHostdevDefFormatSubsys)
(virDomainHostdevDefFormatCaps): Likewise.
* src/network/bridge_driver.c (networkAllocateActualDevice):
Likewise.
* src/util/virfile.c (virBuildPathInternal): Likewise.
* src/util/virnetdev.c (virNetDevGetVirtualFunctions): Likewise.
* src/util/virnetdevmacvlan.c
(virNetDevMacVLanVPortProfileCallback): Likewise.
* src/util/virtypedparam.c (virTypedParameterAssign): Likewise.
* src/util/virutil.c (virGetWin32DirectoryRoot)
(virFileWaitForDevices): Likewise.
* src/vbox/vbox_common.c (vboxDumpNetwork): Likewise.
* tests/seclabeltest.c (main): Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Add a new disk "driver" attribute "iothread" to be parsed as the thread
number for the disk to use. In order to more easily facilitate the usage
and configuration of the iothread, a "zero" for the attribute indicates
iothreads are not supported for the device and a positive value indicates
the specific thread to try and use.
Introduce XML to allowing adding iothreads to the domain. These can be
used by virtio-blk-pci devices in order to assign a specific thread to
handle the workload for the device. The iothreads are the official
implementation of the virtio-blk Data Plane that's been in tech preview
for QEMU.
Coverity complains that checking for domain->def being non NULL in the
if (live) path of virDomainObjAssignDef() would be unnecessary or a
NULL deref since the call to virDomainObjIsActive() would already
dereference domain->def when checking if the def->id field was != -1.
Checked all callers to virDomainObjAssignDef() and each at some point
dereferences (vm)->def->{field} prior to calling when live is true.
In virDomainActualNetDefFormat() a call to virDomainNetGetActualType(def)
was made before a check for (!def) a few lines later. This triggered
Coverity to note the possible NULL deref. Just moving the initialization
to after the !def checks resolves the issue
While working on virDomainBlockCopy, I noticed we had a verify()
concerning internal XML flags that was incomplete after several
recent flag additions; move that up higher in the code to make it
harder to forget to modify on the next flag addition. Adjust
some formatting while at it.
* src/conf/domain_conf.c (verify): Move closer to internal flag
definitions. Cover missing flags ALLOW_ROM and ALLOW_BOOT.
Signed-off-by: Eric Blake <eblake@redhat.com>
QEMU 2.1 added support for the kvm=off option to the -cpu command,
allowing the KVM hypervisor signature to be hidden from the guest.
This enables disabling of some paravirualization features in the
guest as well as allowing certain drivers which test for the
hypervisor to load. Domain XML syntax is as follows:
<domain type='kvm>
...
<features>
...
<kvm>
<hidden state='on'/>
</kvm>
</features>
...
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
I noticed a line 'int nparams = 0;;' in remote_dispatch.h, and
tracked down where it was generated. While at it, I found a
couple of other double semicolons. Additionally, I noticed that
commit df0b57a95 left a stale reference to the file name
remote_dispatch_bodies.h.
* src/conf/numatune_conf.c (virDomainNumatuneNodeParseXML): Drop
empty statement.
* tests/virdbustest.c (testMessageStruct, testMessageSimple):
Likewise.
* src/rpc/gendispatch.pl (remote_dispatch_bodies.h): Likewise, and
update stale comments.
Signed-off-by: Eric Blake <eblake@redhat.com>
When trying to set an invalid value into iotune element, standard
behavior was to not report any error, rather to reset all affected
subelements of the iotune element back to 0 which results in ignoring
those particular subelements by XML generator. Patch further
examines the return code of the virXPathULongLong function
and in case of an invalid non-integer value raises an error.
Fixed to preserve consistency with invalid value checking
of other elements.
Resolves https://bugzilla.redhat.com/show_bug.cgi?id=1131811
When trying to set numatune mode directly using virsh numatune command,
correct error is raised, however numatune structure was not deallocated,
thus resulting in creating an empty numatune element in the guest XML,
if none was present before. Running the same command aftewards results
in a successful change with broken XML structure. Patch fixes the
deallocation problem as well as checking for invalid attribute
combination VIR_DOMAIN_NUMATUNE_PLACEMENT_AUTO + a nonempty nodeset.
Resolves https://bugzilla.redhat.com/show_bug.cgi?id=1129998
When formatting the forward mode addresses or interfaces the switch was
done based on the type of the network rather than of the type of the
individual <interface>/<address> element. In case a user would specify
an incorrect network type ("passhtrough") with <address> elements,
libvirtd would crash as it would attempt to format an <interface>.
Use the type of the individual element to format the XML.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1132347
Tidy up control flow, change boolean argument to use 'bool', improve
error message in case the function is used to parse emulator pinning
info and avoid a few temp variables that made no sense.
Also when the function is called to parse emulator pinning info, there's
no need to check the processor ID in that case.
The check doesn't make much sense as right below it the entries are
either checked for duplicity or ignored in some cases. Having this check
doesn't actually forbid passing invalid values.
commit d9504941 introduces two new attributes "cmd_per_lun" and
"max_sectors" same with the names QEMU uses for virtio-scsi.
But the case of parsing them is not exact. Change to parse
them if controller has "driver" element.
Signed-off-by: Mo yuxiang <moyuxiang@huawei.com>
Implement ZFS storage backend driver. Currently supported
only on FreeBSD because of ZFS limitations on Linux.
Features supported:
- pool-start, pool-stop
- pool-info
- vol-list
- vol-create / vol-delete
Pool definition looks like that:
<pool type='zfs'>
<name>myzfspool</name>
<source>
<name>actualpoolname</name>
</source>
</pool>
The 'actualpoolname' value is a name of the pool on the system,
such as shown by 'zpool list' command. Target makes no sense
here because volumes path is always /dev/zvol/$poolname/$volname.
User has to create a pool on his own, this driver doesn't
support pool creation currently.
A volume could be used with Qemu by adding an entry like this:
<disk type='volume' device='disk'>
<driver name='qemu' type='raw'/>
<source pool='myzfspool' volume='vol5'/>
<target dev='hdc' bus='ide'/>
</disk>
https://bugzilla.redhat.com/show_bug.cgi?id=1128751
There's this <driver/> element under <interface/> which can have
several attributes. However, the driver element is currently formated
only if the driver's name or txmode has been specified. This makes
only a little sense as we parse even partial <driver/>, for instance:
<interface type='user'>
<mac address='52:54:00:e5:48:58'/>
<model type='virtio'/>
<driver ioeventfd='on' event_idx='on' queues='5'/>
</interface>
But such XML would never get formatted back.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Introduce a new structure to handle an iSCSI host device based on the
existing virDomainHostdevSubsysSCSI by adding a "protocol='iscsi'" to
the <source/> element. The existing scsi_host subsystem RNG was modified
to read an optional "protocol='adapter'", although it won't be written
out nor is it documented as an option (by choice).
The new hostdev structure mimics the existing <disk/> element for an
iSCSI device (network) device. New XML is:
<hostdev mode='subsystem' type='scsi' managed='yes'>
<source protocol='iscsi' name='iqn.1992-01.com.example'>
<host name='example.org' port='3260'/>
<auth username='myname'>
<secret type='iscsi' usage='mycluster_myname'/>
</auth>
</source>
<address type='drive' controller='0' bus='0' target='2' unit='5'/>
</hostdev>
The controller element will mimic the existing scsi_host code insomuch
as when 'lsi' and 'virtio-scsi' are used.
In preparation for hostdev support for iSCSI and a virStorageNetHostDefPtr,
split out the network disk storage parsing of the 'host' element into a
separate routine.
Fix a comment in virDomainAuditNetDevice.
Fix a typo in comment of qemuPhysIfaceConnect which is
the caller of virDomainAuditNetDevice.
Signed-off-by: Wang Rui <moon.wangrui@huawei.com>
RNG schema as well as the qemu driver requires absolute paths for memory
and disk snapshot image files but the XML parser was not enforcing it.
Add checks to avoid problems in qemu where the configuration it creates
is invalid.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1126329
In a system with Fiber Channel Host Adapters, a query to list all Fibre Channel
HBAs OR Vports currently returns empty list:
$ virsh nodedev-list --cap fc_host
$
Libvirt correctly discovers properties for all HBAs. However, the reporting
fails because of incorrect flag comparison while filtering these types.
This is fixed by removing references to 'VIR_CONNECT_LIST_NODE_DEVICES_CAP_*'
for comparison and replacing those with 'VIR_NODE_DEV_CAP_*'
Introduced by original commit id '652a2ec6'
Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com>
A future patch is going to wire up qemu active block commit jobs;
but as they have similar events and are canceled/pivoted in the
same way as block copy jobs, it is easiest to track all bookkeeping
for the commit job by reusing the <mirror> element. This patch
adds domain XML to track which job was responsible for creating a
mirroring situation, and adds a job='copy' attribute to all
existing uses of <mirror>. Along the way, it also massages the
qemu monitor backend to read the new field in order to generate
the correct type of libvirt job (even though it requires a
future patch to actually cause a qemu event that can be reported
as an active commit). It also prepares to update persistent XML
to match changes made to live XML when a copy completes.
* docs/schemas/domaincommon.rng: Enhance schema.
* docs/formatdomain.html.in: Document it.
* src/conf/domain_conf.h (_virDomainDiskDef): Add a field.
* src/conf/domain_conf.c (virDomainBlockJobType): String conversion.
(virDomainDiskDefParseXML): Parse job type.
(virDomainDiskDefFormat): Output job type.
* src/qemu/qemu_process.c (qemuProcessHandleBlockJob): Distinguish
active from regular commit.
* src/qemu/qemu_driver.c (qemuDomainBlockCopy): Set job type.
(qemuDomainBlockPivot, qemuDomainBlockJobImpl): Clean up job type
on completion.
* tests/qemuxml2xmloutdata/qemuxml2xmlout-disk-mirror-old.xml:
Update tests.
* tests/qemuxml2argvdata/qemuxml2argv-disk-mirror.xml: Likewise.
* tests/qemuxml2argvdata/qemuxml2argv-disk-active-commit.xml: New
file.
* tests/qemuxml2xmltest.c (mymain): Drive new test.
Signed-off-by: Eric Blake <eblake@redhat.com>
If all features are set to default (including the capabilities policy),
but some capabilities are toggled, we need to output the <features>
element when formatting the config.
Doing a blockcopy operation across a libvirtd restart is not very
robust at the moment. In particular, we are clearing the <mirror>
element prior to telling qemu to finish the job. Also, thanks to the
ability to request async completion, the user can easily regain
control prior to qemu actually finishing the effort, and they should
be able to poll the domain XML to see if the job is still going.
A future patch will fix things to actually wait until qemu is done
before modifying the XML to reflect the job completion. But since
qemu issues identical BLOCK_JOB_COMPLETE events regardless of whether
the job was cancelled (kept the original disk) or completed (pivoted
to the new disk), we have to track which of the two operations were
used to end the job. Furthermore, we'd like to avoid attempts to
end a job where we are already waiting on an earlier request to qemu
to end the job. Likewise, if we miss the qemu event (perhaps because
it arrived during a libvirtd restart), we still need enough state
recorded to be able to determine how to modify the domain XML once
we reconnect to qemu and manually learn whether the job still exists.
Although this patch doesn't actually fix the problem, it is a
preliminary step that makes it possible to track whether a job
has already begun steps towards completion.
* src/conf/domain_conf.h (virDomainDiskMirrorState): New enum.
(_virDomainDiskDef): Convert bool mirroring to new enum.
* src/conf/domain_conf.c (virDomainDiskDefParseXML)
(virDomainDiskDefFormat): Handle new values.
* src/qemu/qemu_process.c (qemuProcessHandleBlockJob): Adjust
client.
* src/qemu/qemu_driver.c (qemuDomainBlockPivot)
(qemuDomainBlockJobImpl): Likewise.
* docs/schemas/domaincommon.rng (diskMirror): Expose new values.
* docs/formatdomain.html.in (elementsDisks): Document it.
* tests/qemuxml2argvdata/qemuxml2argv-disk-mirror.xml: Test it.
Signed-off-by: Eric Blake <eblake@redhat.com>
Leak introduced in commit 16ebf10f (v1.2.6), detected by valgrind:
==9816== 216 (96 direct, 120 indirect) bytes in 6 blocks are definitely lost in loss record 665 of 821
==9816== at 0x4A081D4: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==9816== by 0x50836FB: virAlloc (viralloc.c:144)
==9816== by 0x1DBDBE27: udevProcessPCI (node_device_udev.c:546)
==9816== by 0x1DBDD79D: udevGetDeviceDetails (node_device_udev.c:1293)
* src/util/virpci.h (virPCIEDeviceInfoFree): New prototype.
* src/util/virpci.c (virPCIEDeviceInfoFree): New function.
* src/conf/node_device_conf.c (virNodeDevCapsDefFree): Clear
pci_express under pci case.
(virNodeDevCapPCIDevParseXML): Avoid leak.
* src/node_device/node_device_udev.c (udevProcessPCI): Likewise.
* src/libvirt_private.syms (virpci.h): Export it.
Signed-off-by: Eric Blake <eblake@redhat.com>
Finding virPCIE* code is more intuitive if located in virpci.h
instead of node_device_conf.h.
* src/conf/node_device_conf.h (virPCIELinkSpeed, virPCIELink)
(virPCIEDeviceInfo): Move...
* src/util/virpci.h: ...here.
* src/conf/node_device_conf.c (virPCIELinkSpeed): Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
The compiler can alert us to places where we need to expand switch
statements because we add a new enum value, but only if we don't
have a default case.
* src/conf/node_device_conf.c (virNodeDeviceDefFormat)
(virNodeDevCapsDefParseXML, virNodeDevCapsDefFree): Drop default
case.
Signed-off-by: Eric Blake <eblake@redhat.com>
Libvirt documents that the default entropy source for the 'random'
backend of a RNG device is /dev/random. Instead of storing and
propagating NULL across our code and checking it in multiple places fill
the default in the post parse callback and use that in the other places.
Create the structures and API's to hold and manage the iSCSI host device.
This extends the 'scsi_host' definitions added in commit id '5c811dce'.
A future patch will add the XML parsing, but that code requires some
infrastructure to be in place first in order to handle the differences
between a 'scsi_host' and an 'iSCSI host' device.
Split virDomainHostdevSubsysSCSI further. In preparation for having
either SCSI or iSCSI data, create a union in virDomainHostdevSubsysSCSI
to contain just a virDomainHostdevSubsysSCSIHost to describe the
'scsi_host' host device
This patch adds back the virDomainDef typedef into domain_conf and
makes all the numatune_conf functions independent of any virDomainDef
definitions.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Our seclabel parsing was repeatedly assigning malloc'd data into a
temporary variable, without first freeing the previous use. Among
other leaks flagged by valgrind:
==9312== 8 bytes in 1 blocks are definitely lost in loss record 88 of 821
==9312== at 0x4A0645D: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==9312== by 0x8C40369: strdup (strdup.c:42)
==9312== by 0x50EA799: virStrdup (virstring.c:676)
==9312== by 0x50FAEB9: virXPathString (virxml.c:90)
==9312== by 0x50FAF1E: virXPathStringLimit (virxml.c:112)
==9312== by 0x510F516: virSecurityLabelDefParseXML (domain_conf.c:4571)
==9312== by 0x510FB20: virSecurityLabelDefsParseXML (domain_conf.c:4720)
While it was multiple problems, it looks like commit da78351 (thankfully
unreleased) was to blame for all of them.
* src/conf/domain_conf.c (virSecurityLabelDefParseXML): Plug leaks
detected by valgrind.
Signed-off-by: Eric Blake <eblake@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1122205
Although the edits were changing in-memory XML, it was not flushed
to disk; so unless some other action changes XML, a libvirtd restart
would lose the changed information.
* src/conf/domain_conf.c (virDomainObjSetMetadata): Add parameter,
to save live status across restarts.
(virDomainSaveXML): Allow for test driver.
* src/conf/domain_conf.h (virDomainObjSetMetadata): Adjust
signature.
* src/bhyve/bhyve_driver.c (bhyveDomainSetMetadata): Adjust caller.
* src/lxc/lxc_driver.c (lxcDomainSetMetadata): Likewise.
* src/qemu/qemu_driver.c (qemuDomainSetMetadata): Likewise.
* src/test/test_driver.c (testDomainSetMetadata): Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Added <capabilities> in the <features> section of LXC domains
configuration. This section can contain elements named after the
capabilities like:
<mknod state="on"/>, keep CAP_MKNOD capability
<sys_chroot state="off"/> drop CAP_SYS_CHROOT capability
Users can restrict or give more capabilities than the default using
this mechanism.
Add an optional unique_id parameter to nodedev. Allows for easier lookup
and display of the unique_id value in order to document for use with
scsi_host code.
Between reboots and kernel reloads, the SCSI host number used for SCSI
storage pools may change requiring modification to the storage pool XML
in order to use a specific SCSI host adapter.
This patch introduces the "parentaddr" element and "unique_id" attribute
for the SCSI host adapter in order to uniquely identify the adapter
between reboots and kernel reloads. For now the goal is to only parse
and format the XML. Both will be required to be provided in order to
uniquely identify the desired SCSI host.
The new XML is expected to be as follows:
<adapter type='scsi_host'>
<parentaddr unique_id='3'>
<address domain='0x0000' bus='0x00' slot='0x1f' func='0x2'/>
</parentaddr>
</adapter>
where "parentaddr" is the parent device of the SCSI host using the PCI
address on which the device resides and the value from the unique_id file
for the device. Both the PCI address and unique_id values will be used
to traverse the /sys/class/scsi_host/ directories looking at each link
to match the PCI address reformatted to the directory link format where
"domain🚌slot:function" is found. Then for each matching directory
the unique_id file for the scsi_host will be used to match the unique_id
value in the xml.
For a PCI address listed above, this will be formatted to "0000:00:1f.2"
and the links in /sys/class/scsi_host will be used to find the host#
to be used for the 'scsi_host' device. Each entry is a link to the
/sys/bus/pci/devices directories, e.g.:
% ls -al /sys/class/scsi_host/host2
lrwxrwxrwx. 1 root root 0 Jun 1 00:22 /sys/class/scsi_host/host2 -> ../../devices/pci0000:00/0000:00:1f.2/ata3/host2/scsi_host/host2
% cat /sys/class/scsi_host/host2/unique_id
3
The "parentaddr" and "name" attributes are mutually exclusive to identify
the SCSI host number. Use of the "parentaddr" element will be the preferred
mechanism.
This patch only supports to parse and format the XMLs. Later patches will
add code to find out the scsi host number.
LXC network devices can now be assigned a custom NIC device name on the
container side. For example, this is configured with:
<interface type='network'>
<source network='default'/>
<guest dev="eth1"/>
</interface>
In this example the network card will appear as eth1 in the guest.
Commit 93e82727 introduced numatune_conf.h file that contains
typedefs already defined in domain_conf.h, such as:
- virDomainNumatune
- virDomainNumatunePtr
- virDomainDef
- virDomainDefPtr
As numatune_conf.h is included by domain_conf.h, clang
complains about redefinition of typedef and the build fails.
In order to fix it, drop typedefs already defined by numatume_conf.h
from domain_conf.h.
There were numerous places where numatune configuration (and thus
domain config as well) was changed in different ways. On some
places this even resulted in persistent domain definition not to be
stable (it would change with daemon's restart).
In order to uniformly change how numatune config is dealt with, all
the internals are now accessible directly only in numatune_conf.c and
outside this file accessors must be used.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Since there was already public virDomainNumatune*, I changed the
private virNumaTune to match the same, so all the uses are unified and
public API is kept:
s/vir\(Domain\)\?Numa[tT]une/virDomainNumatune/g
then shrunk long lines, and mainly functions, that were created after
that:
sed -i 's/virDomainNumatuneMemPlacementMode/virDomainNumatunePlacement/g'
And to cope with the enum name, I haad to change the constants as
well:
s/VIR_NUMA_TUNE_MEM_PLACEMENT_MODE/VIR_DOMAIN_NUMATUNE_PLACEMENT/g
Last thing I did was at least a little shortening of already long
name:
s/virDomainNumatuneDef/virDomainNumatune/g
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
There are many places with numatune-related code that should be put
into special numatune_conf and this patch creates a basis for that.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
In XML format, by definition, order of fields should not matter, so
order of parsing the elements doesn't affect the end result. When
specifying guest NUMA cells, we depend only on the order of the 'cell'
elements. With this patch all older domain XMLs are parsed as before,
but with the 'id' attribute they are parsed and formatted according to
that field. This will be useful when we have tuning settings for
particular guest NUMA node.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
This patch adds support for the QEMU vhost-user feature to libvirt.
vhost-user enables the communication between a QEMU virtual machine
and other userspace process using the Virtio transport protocol.
It uses a char dev (e.g. Unix socket) for the control plane,
while the data plane based on shared memory.
The XML looks like:
<interface type='vhostuser'>
<mac address='52:54:00:3b:83:1a'/>
<source type='unix' path='/tmp/vhost.sock' mode='server'/>
<model type='virtio'/>
</interface>
Signed-off-by: Michele Paolino <m.paolino@virtualopensystems.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Add 'nocow' to storage volume xml so that user can have an option
to set NOCOW flag to the newly created volume. It's useful on btrfs
file system to enhance performance.
Btrfs has low performance when hosting VM images, even more when the guest
in those VM are also using btrfs as file system. One way to mitigate this
bad performance is to turn off COW attributes on VM files. Generally, there
are two ways to turn off COW on btrfs: a) by mounting fs with nodatacow,
then all newly created files will be NOCOW. b) per file. Add the NOCOW file
attribute. It could only be done to empty or new files.
This patch tries the second way, according to 'nocow' option, it could set
NOCOW flag per file:
for raw file images, handle 'nocow' in libvirt code; for non-raw file images,
pass 'nocow=on' option to qemu-img, and let qemu-img to handle that (requires
qemu-img version >= 2.1).
Signed-off-by: Chunyan Liu <cyliu@suse.com>
Instead of allocating the virSecurityLabelDef structure ourselves, we
can utilize virSecurityLabelDefNew which even sets the default values
for us.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1113860
We've always done that. Well, until 990e46c45. Point is, if we don't
format model, we may lose a domain on libvirtd restart. If the
seclabel is implicit however, we should skip it's formatting.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Commit dae1568c6c converted the perms
member of the virStorageVolTarget struct into a pointer to make it
optional. But virStorageVolTargetDefFormat did not check perms for
NULL before dereferencing it.
https://bugzilla.redhat.com/show_bug.cgi?id=1066894
With current code it's possible to have for instance:
virsh dumpxml mydomain | grep seclabel
<seclabel type='dynamic' model='selinux' relabel='yes'/>
<seclabel type='dynamic' model='selinux' relabel='yes'/>
<seclabel type='dynamic' model='selinux' relabel='yes'/>
<seclabel type='dynamic' model='selinux' relabel='yes'/>
<seclabel type='dynamic' model='selinux' relabel='yes'/>
what doesn't make any sense. We should reject the XML in the config
parsing phase.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This negation in names of boolean variables is driving me insane. The
code is much more readable if we drop the 'no-' prefix. Well, at least
for me.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Split out checking of invalid metadata type from the switch statement so
that we can use the typecasted enum value to allow tracking addition of
new items by the compliler.
Also avoids two dead-code break statements.
In the future we might need to track state of individual images. Move
the readonly and shared flags to the virStorageSource struct so that we
can keep them in a per-image basis.
Some of the further changes will propagate seclabels from a disk source
element into the backing store elements. This would change the XML
output of the backing store as the seclabels would be formatted for each
backing store element. Skip the seclabels formatting until we decide
that it's necessary.
Extract common operations done when creating an audit message to a
separate generic function that can be reused and convert RNG, disk, FS
and net audit to use it.
Replace the authType, chap, and cephx unions in virStoragePoolSource
with a single pointer to a virStorageAuthDefPtr. Adjust all users of
the previous chap/cephx and secret unions with the source->auth data.
Replace the inline "auth" struct in virStorageSource with a pointer
to a virStorageAuthDefPtr and utilize between the domain_conf, qemu_conf,
and qemu_command sources for finding the auth data for a domain disk
This new module holds and formats capabilities for emulator. If you
are about to create a new domain, you may want to know what is the
host or hypervisor capable of. To make sure we don't regress on the
XML, the formatting is not something left for each driver to
implement, rather there's general format function.
The domain capabilities is a lockable object (even though the locking
is not necessary yet) which uses reference counter.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Replace:
if (virBufferError(&buf)) {
virBufferFreeAndReset(&buf);
virReportOOMError();
...
}
with:
if (virBufferCheckError(&buf) < 0)
...
This should not be a functional change (unless some callers
misused the virBuffer APIs - a different error would be reported
then)
So far, we only report an error if formatting the siblings bitmap
in NUMA topology fails.
Be consistent and always report error in virCapabilitiesFormatXML.
This introduces two new attributes "cmd_per_lun" and "max_sectors" same
with the names QEMU uses for virtio-scsi. An example of the XML:
<controller type='scsi' index='0' model='virtio-scsi' cmd_per_lun='50'
max_sectors='512'/>
The corresponding QEMU command line:
-device virtio-scsi-pci,id=scsi0,cmd_per_lun=50,max_sectors=512,
bus=pci.0,addr=0x3
Signed-off-by: Mike Perez <thingee@gmail.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Throwing an error is much friendly than just
"error: An error occurred, but the cause is unknown"
Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Fix missing whitespace when parsing 'managed' attribute.
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
When looking for a port to allocate, the port allocator didn't take in
consideration ports that are statically set by the user. Defining
these two graphics elements in the XML would cause an error, as the
port allocator would try to use the same port for the spice graphics
element:
<graphics type='spice' autoport='yes'/>
<graphics type='vnc' port='5900' autoport='no'/>
The new *[pP]ortReserved variables keep track of the ports that were
successfully tracked as used by the port allocator but that weren't
bound.
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1081881
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
It returns NULL on failure. Checking if the negation of it
is less than zero makes no sense. (Found by coverity after moving
the code)
In another case, the return value wasn't checked at all.
This modifies the formatting function of virInterface to be a proper
mirror of the parse function, including the addition of a
"parentIfType" arg so that we can decide whether or not it is
appropriate to emit the elements that are only in toplevel interfaces,
as well as the <link> element (which isn't allowed for bridge
interfaces).
Since the restructuring of the code necessarily changes the order of
some of the elements, some test case data had to be updated.
the switch cases for the 4 different interface types had repetitive
code which has now been pulled out as common. While touching those
lines, some extra usage of "!= NULL" etc has been eliminated to make
things more compact and inline with current coding practices.
NB: parentIfType == VIR_INTERFACE_TYPE_LAST means that this is a
toplevel interface (not a subordinate of a bridge or bond). Only
toplevel interfaces can have a start mode, mtu, or IP address element.
For some reason the bridge stp mode and delay were put directly into
the "bridge" case of the switch in virInterfaceDefParseXML(), although
they are inside the <bridge> element, and so should be parsed in the
function created for that purpose - virInterfaceBridgeDefFormat().
