The "preferred" parameter is not used by any caller of cpuDecode
anymore. It's only used internally in cpu_x86 to implement cpuBaseline.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
All APIs which expect a list of CPU models supported by hypervisors were
switched from char **models and int models to just accept a pointer to
virDomainCapsCPUModels object stored in domain capabilities. This avoids
the need to transform virDomainCapsCPUModelsPtr into a NULL-terminated
list of model names and also allows the various cpu driver APIs to
access additional details (such as its usability) about each CPU model.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
query-cpu-definitions QMP command returns a list of unavailable features
which prevent CPU models from being usable on the current host. So far
we only checked whether the list was empty to mark CPU models as
(un)usable. This patch parses all unavailable features for each CPU
model and stores them in virDomainCapsCPUModel as a list of usability
blockers.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
When a hypervisor marks a CPU model as unusable on the current host, it
may also give us a list of features which prevent the model from being
usable. Storing this list in virDomainCapsCPUModel will help the CPU
driver with creating a host-model CPU configuration.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1497396
In 0d3d020ba6 I've added capability to accept MAC addresses
for the API too. However, the implementation was faulty. It needs
to lookup the corresponding interface in the domain definition
and pass the ifname instead of MAC address.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1497396
The other APIs accept both, ifname and MAC address. There's no
reason virDomainInterfaceStats can't do the same.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Every caller reports the error themselves. Might as well move it
into the function and thus unify it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The command "info migrate" of qemu outputs the dirty-pages-rate during
migration, but page size is different in different architectures. So
page size should be output to calculate dirty pages in bytes.
Page size is already implemented with commit
030ce1f8612215fcbe9d353dfeaeb2937f8e3f94 in qemu.
Now Implement the counter-part in libvirt.
Signed-off-by: Chao Fan <fanc.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Parse the -M (or -machine) command line option before starting
processing in earnest and have a fallback ready in case it's not
present, so that while parsing other options we can rely on
def->os.machine being initialized.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1379218
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Skip purging the backing chain and redetecting it when it was not going
to change during the time we were not present.
The decision is based on the new flag which records whether there were
blockjobs running to the status XML.
https://bugzilla.redhat.com/show_bug.cgi?id=1447169
Since domain can have at most one watchdog it simplifies things a
bit. However, since we must be able to set the watchdog action as
well, new monitor command needs to be used.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Currently we don't do it. Therefore we accept senseless
combinations of models and buses they are attached to.
Moreover, diag288 watchdog is exclusive to s390(x).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
For VMs with persistent config the config may change upon successful
completion of a job. Save it always if a persistent VM finishes a
blockjob. This will simplify further additions.
The status XML would be saved only for the copy job (in case of success)
or on failure even for other jobs. As the status contains the backing
chain data, which change after success we should always save it on
block job completion.
Checking of disk presence accesses storage on the host so it should be
done from the host setup function. Move the code to new function called
qemuProcessPrepareHostStorage and remove qemuDomainCheckDiskPresence.
Introduce a new function to prepare domain disks which will also do the
volume source to actual disk source translation.
The 'pretend' condition is not transferred to the new location since it
does not help in writing tests and also no tests abuse it.
Pass flags to the function rather than just whether we have incoming
migration. This also enforces correct startup policy for USB devices
when reverting from a snapshot.
qemuMigrationPrepareAny called multiple of the functions starting the
qemu process for incoming migration by adding the flags explicitly.
Extract them to a variable so that they can be easily used for other
calls or changed in the future.
Similarly to previous patch, for some types of interface domain
and host are on the same side of RX/TX barrier. In that case, we
need to set up the QoS differently. Well, swapped.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1497410
The comment in virNetDevTapInterfaceStats() implementation for
Linux states that packets transmitted by domain are received by
the host and vice versa. Well, this is true but not for all types
of interfaces. For instance, for macvtaps when TAP device is
hooked right onto a physical device any packet that domain sends
looks also like a packet sent to the host. Therefore, we should
allow caller to chose if the stats returned should be straight
copy or swapped.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Users might have configured interface so that it's type of
network, but the corresponding network plugs interfaces into an
OVS bridge. Therefore, we have to check for the actual type of
the interface instead of the configured one.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
qemu 2.7.0 introduces multiqueue virtio-blk(commit 2f27059).
This patch introduces a new attribute "queues". An example of
the XML:
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' queues='4'/>
The corresponding QEMU command line:
-device virtio-blk-pci,scsi=off,num-queues=4,id=virtio-disk0
Signed-off-by: Lin Ma <lma@suse.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Alter qemu command line generation in order to possibly add TLS for
a suitably configured domain.
Sample TLS args generated by libvirt -
-object tls-creds-x509,id=objvirtio-disk0_tls0,dir=/etc/pki/qemu,\
endpoint=client,verify-peer=yes \
-drive file.driver=vxhs,file.tls-creds=objvirtio-disk0_tls0,\
file.vdisk-id=eb90327c-8302-4725-9e1b-4e85ed4dc251,\
file.server.type=tcp,file.server.host=192.168.0.1,\
file.server.port=9999,format=raw,if=none,\
id=drive-virtio-disk0,cache=none \
-device virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,\
id=virtio-disk0
Update the qemuxml2argvtest with a couple of examples. One for a
simple case and the other a bit more complex where multiple VxHS disks
are added where at least one uses a VxHS that doesn't require TLS
credentials and thus sets the domain disk source attribute "tls = 'no'".
Update the hotplug to be able to handle processing the tlsAlias whether
it's to add the TLS object when hotplugging a disk or to remove the TLS
object when hot unplugging a disk. The hot plug/unplug code is largely
generic, but the addition code does make the VXHS specific checks only
because it needs to grab the correct config directory and generate the
object as the command line would do.
Signed-off-by: Ashish Mittal <Ashish.Mittal@veritas.com>
Signed-off-by: John Ferlan <jferlan@redhat.com>
Introduce a function to setup any TLS needs for a disk source.
If there's a configuration or other error setting up the disk source
for TLS, then cause the domain startup to fail.
For VxHS, follow the chardevTLS model where if the src->haveTLS hasn't
been configured, then take the system/global cfg->haveTLS setting for
the storage source *and* mark that we've done so via the tlsFromConfig
setting in storage source.
Next, if we are using TLS, then generate an alias into a virStorageSource
'tlsAlias' field that will be used to create the TLS object and added to
the disk object in order to link the two together for QEMU.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Add a new TLS X.509 certificate type - "vxhs". This will handle the
creation of a TLS certificate capability for properly configured
VxHS network block device clients.
The following describes the behavior of TLS for VxHS block device:
(1) Two new options have been added in /etc/libvirt/qemu.conf
to control TLS behavior with VxHS block devices
"vxhs_tls" and "vxhs_tls_x509_cert_dir".
(2) Setting "vxhs_tls=1" in /etc/libvirt/qemu.conf will enable
TLS for VxHS block devices.
(3) "vxhs_tls_x509_cert_dir" can be set to the full path where the
TLS CA certificate and the client certificate and keys are saved.
If this value is missing, the "default_tls_x509_cert_dir" will be
used instead. If the environment is not configured properly the
authentication to the VxHS server will fail.
Signed-off-by: Ashish Mittal <Ashish.Mittal@veritas.com>
Signed-off-by: John Ferlan <jferlan@redhat.com>
VM private data is cleared when the VM is turned off and also when the
VM object is being freed. Some of the clearing code was duplicated.
Extract it to a separate function.
This also removes the now unnecessary function
qemuDomainClearPrivatePaths.
Use an empty string to let qemu fill out the default.
This matches what's done in qemuBuildChrChardevStr.
https://bugzilla.redhat.com/show_bug.cgi?id=1454671
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Some values we read from the qemu monitor may be changed with the actual
state by the incoming migration. This means that we should refresh
certain things only after the migration has finished.
This is mostly visible in the cdrom tray state, which is by default
closed but may be opened by the guest OS. This would be refreshed before
qemu transferred the actual state and thus libvirt would think that the
tray is closed.
Note that this patch moves only a few obvious query commands. Others may
be moved later after individual assessment.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1463168
When the vcpu is successfully removed libvirt would remove the cgroup.
In cases when removal of the cgroup fails libvirt would report an error.
This does not make much sense, since the vcpu was removed and we can't
really do anything with the cgroup. This patch silences the errors from
cgroup removal.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1462092
The alias recorded in disk->info.alias is the alias for the frontend
device but we are interested in the backend drive. This messed up the
disk node name extraction code as qemu reports the drive alias in the
block query commands. This was broken in the node name detector
refactoring done in commit 0175dc6ea0
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1494327
Seeing a log message saying 'flags=93' is ambiguous & confusing unless
you happen to know that libvirt always prints flags as hex. Change our
debug messages so that they always add a '0x' prefix when printing flags,
and '0' prefix when printing mode. A few other misc places gain a '0x'
prefix in error messages too.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
