Add a localOnly flag to the virConnectDriver struct which allows a
driver to indicate whether it is local-only, or permits remote
connections. Stateful drivers running inside libvirtd are generally
local only. This allows us to remote the check for uri->server != NULL
from most drivers.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Currently the virDrvConnectOpen method is supposed to handle both
opening an explicit URI and auto-probing a driver if no URI is
given. Introduce a dedicated virDrvConnectURIProbe method to enable the
probing functionality to be split from the driver opening functionality.
It is still possible for NULL to be passed to the virDrvConnectOpen
method after this change, because the remote driver needs special
handling to enable probing of the URI against a remote libvirtd daemon.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Implied by QEMU >= 1.2.0.
Delete this one first, because QEMU_CAPS_NODEFCONFIG is only used
when QEMU_CAPS_NO_USER_CONFIG is unsupported.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
We require QEMU >= 1.5.0, assume every QEMU supports it.
Sadly that does not let us trivially drop qemuMonitor's
priv->monJSON bool, because of qemuDomainQemuAttach.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Now that we assume QEMU_CAPS_NETDEV, the only thing left to check
is whether we need to use the legacy -net syntax because of
a non-conforming armchitecture.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Now that we assume -netdev support, we no longer set the VLAN
or need the hostPlugged bool.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
This makes qemuDomainSupportsNetdev identical to
qemuDomainSupportsNicdev and leaves some code in
qemuDomainAttachNetDevice to be cleaned up later.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Up until now we have only formatted non-default GIC versions on
the command line, in order to maintain compatibility with older
QEMU versions that didn't implement the gic-version option to
begin with; however, doing so is entirely unnecessary for newer
QEMU versions, where the option is available. Moreover, having
the GIC version formatted on the command line at all times
ensures that QEMU changing its own defaults doesn't affect the
ABI of libvirt guests.
A few test cases are removed to avoid extra churn. It doesn't
matter for coverage, as those scenarios are already covered by
other parts of the test suite.
This patch is better viewed with 'git show -w'.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
According to the policy described on https://libvirt.org/platforms.html
the QEMU versions in the oldest relevant releses are:
SLES 12: 2.0.0
RHEL 7: 1.5.3
Ubuntu 14.04: 2.0.0
Set the minimum to 1.5.0 and drop support for RHEL 6.
This will let us assume lots of capabilities.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Remove the qmpOnly argument of virQEMUCapsNewForBinaryInternal
and instead always assume it's true.
This effectively sets the minimum QEMU version to 1.2.0.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Because we allow a QEMU_JOB_DESTROY to occur while we're starting
up and we drop the @vm lock prior to qemuMonitorOpen, it's possible
that a domain destroy operation "wins" the race, calls qemuProcessStop
which will free and reinitialize priv->monConfig. Depending on the
exact timing either qemuMonitorOpen will be passed a NULL @config
variable or it will be using free'd (and possibly reclaimed) memory
as the @config parameter - neither of which is good.
Resolve this by localizing the @monConfig, taking an extra reference,
and then once we get the @vm lock again removing our reference since
we are done with it.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Rather than VIR_ALLOC, use the New function for allocation. We
already use the Free function anyway.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
The array of strings we are building is indeed array of const
strings. We are not STRDUP()-ing them nor FREE()-ing them.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Since virCloseCallbacksRun was ignoring the value anyway, let's
just change it to be a void function.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Upon entry from virCloseCallbacksRun, the @dom will have a
Ref and Lock from virDomainObjListFindByUUIDRef, so there's
no need to take an extra reference nor should the code call
virDomainObjEndAPI when done since that both Unref's and
Unlock's the @dom which means the callers call to EndAPI
would be unlocking an unlocked object. At least the Ref
saved the code from referencing something already freed.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Just like the existing areMultipleRootsSupported, this will
allow us to change the results of the driver-agnostic PCI
address allocation logic based on whether the QEMU binary
supports certain features.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The new controller will not yet be used automatically by
libvirt, but at this point it's already possible to configure
a guest to use it.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This capability will be set when the pcie-pci-bridge device
is available in the QEMU binary.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
We're going to add a similarly-named attribute later, and we'd
like to be consistent.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1557769
Problem with device mapper targets is that there can be several
other devices 'hidden' behind them. For instance, /dev/dm-1 can
consist of /dev/sda, /dev/sdb and /dev/sdc. Therefore, when
setting up devices CGroup and namespaces we have to take this
into account.
This bug was exposed after Linux kernel was fixed. Initially,
kernel used different functions for getting block device in
open() and ioctl(). While CGroup permissions were checked in the
former case, due to a bug in kernel they were not checked in the
latter case. This changed with the upstream commit of
519049afead4f7c3e6446028c41e99fde958cc04 (v4.16-rc5~11^2~4).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The qemu command line generator code set disk caching of shareable disks
to 'none' when formatting the command line silently. Move this code to a
common place when preparing the domain definition for startup so that it
does not have to be duplicated.
The new test case shows that the actual cache mode will now be recorded
in the live XML definition.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The old qcow2 encryption format was buggy, so the new approach is to use
luks inside qcow2. As it turns out, it didn't require that many changes.
It was necessary to fix the command line formatter to stop mangling the
format when secrets are present and specify the encryption format and
secret in correct format.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
This format is used by the storage driver and other hypervisors but qemu
does not have notion of the 'iso' format and libvirt does not translate
it to anything useful, so it would not work anyways. Users should use
'raw' instead.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
This is a storage driver type, which is not handled in qemu driver
properly. For accessing directories, disk type 'dir' is used instead.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
It will be necessary to initialize various aspects for the detected
members of the backing chain. Add a function that will handle it and
call it from qemuDomainPrepareDiskSource and qemuDomainDetermineDiskChain
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
For some reason we've decided to silently translate the disk
detect_zeroes mode if it would be invalid. Extract the
logic so that it does not need to be copypasta'd across the code base.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Make the function more usable by returning the full disk definition and
fix the only caller for the new semantics. The new name for the function
is virDomainDiskDefParse.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
My commit 2e0d6cdec41 claimed qemuMonitorJSONCheckError guarantees
"return" object exists in the JSON reply. But it only makes sure the key
is there, while the type of the value is not checked. A lot of callers
do not care since they only want to see whether their QMP command failed
or not, but any caller which needs to read some data from the reply
wants to make sure the correct data type was returned.
This patch adds a new API called qemuMonitorJSONCheckReply which calls
qemuMonitorJSONCheckError and checks "return" contains a value of the
specified type.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Rather than trying to prevent stealing of the 'actions' virJSONValue
into the monitor command replace the code so that it does the same
thing, since 'actions' was actually not really used after calling the
monitor.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Use virJSONValueObjectGetArray instead of virJSONValueObjectGet so that
it's not necessary to check whether it's an array.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
It was not possible to determine whether virJSONValueObjectAddVArgs and
the functions using it would consume a virJSONValue or not when used
with the 'a' or 'A' modifier depending on when the loop failed.
Fix this by passing in a pointer to the pointer so that it can be
cleared once it's successfully consumed and the callers don't have to
second-guess leaving a chance of leaking or double freeing the value
depending on the ordering.
Fix all callers to pass a double pointer too.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Mediated devices support hot-{plug,unplug} since their introduction in
kernel 4.10, however libvirt has still been missing support for this.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Mediated devices support hot-{plug,unplug} since their introduction in
kernel 4.10, however libvirt has still been missing support for this.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
qemuDomainDetachWatchdog uses the infrastructure for waiting
for the DEVICE_DELETED event, but the asynchronous delete
was not implemented.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1560976
For historical reasons we've used 32 bytes long static buffer for
storing PTY aliases. This breaks users scenario where they try to
start a machine with user alias consisting of "ua-$uuid".
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
If someone set a user alias or pcihole64 on an implicit controller,
we need to format it to migrate the domain properly.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reported-by: Joseph Richard <Joseph.Richard@windriver.com>
QEMU on S390 (since v2.11) can support virtio input ccw devices.
So build the qemu command line for ccw devices.
Also add test cases for virtio-{keyboard, mouse, tablet}-ccw.
Signed-off-by: Farhan Ali <alifm@linux.vnet.ibm.com>
Signed-off-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
QEMU on S390 (since v2.11) can support virtio input ccw devices.
Introduce qemu capabilities for these devices.
Signed-off-by: Farhan Ali <alifm@linux.vnet.ibm.com>
Signed-off-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
S390 guests can only support a virtio-gpu-ccw device as a video
device. So set default video model type to VIR_DOMAIN_VIDEO_TYPE_VIRTIO
for S390 guests.
Signed-off-by: Farhan Ali <alifm@linux.vnet.ibm.com>
