qemuDomainChrDefValidate() has a lot of static helpers functions
that needed to be moved as well.
Other functions from qemuDomainDeviceDefValidate() that were
also moved:
- qemuValidateDomainSmartcardDef
- qemuValidateDomainRNGDef
- qemuValidateDomainRedirdevDef
- qemuValidateDomainWatchdogDef
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
The next big task is to move qemuDomainDeviceDefValidate() to
qemu_validation.c, which is a function that calls a lot of
other static helper functions. This patch starts it by moving
qemuDomainDeviceDefValidateAddress().
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Move the static functions qemuDomainValidateDef() uses, as well as
qemuDomainValidateDef() itself to qemu_validate.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This patch introduces a new file to host domain validations from
the QEMU driver. And to get things started, let's move
qemuDomainDefValidateFeatures() to this new file.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This is the only instance of g_autofree change applicable for
qemu_checkpoint.c
Signed-off-by: Seeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
When the comment in libvirtd.sasl was last updated with
commit fe772f24a6
Author: Cole Robinson <crobinso@redhat.com>
Date: Sat Oct 20 14:10:03 2012 -0400
daemon: Avoid 'Could not find keytab file' in syslog
it was noted that only old versions of kerberos would need the
environment variable to be set: that was more than seven years
ago, so it's safe to assume that none of our current target
platforms still requires that hack and setting the appropriate
key in the configuration file will be enough.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
libvirtd supports this feature, and virtqemud ultimately calls to
the same code so it does as well: advertise it in the sysconf file
for the latter, as is already the case for the former.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This follows the example set by libvirtd, and makes it easier for
the admin to tweak the timeout or disable it altogether.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
While not terribly useful in general, tweaking each daemon's
timeout (or disabling it off altogether) is a valid use case which
we can very easily support while being consistent with what already
happens for libvirtd. This is a first step in that direction.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
We're going to add many more later, so start by adjusting the
existing ones to more closely follow the example set by libvirtd.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
When using systemd we want to take advantage of socket activation
instead of keeping daemons running all the time, so we default to
shutting them down after two minutes of inactivity.
At the same time, we want it to be possible for the admin to opt
out of this behavior and disable timeouts entirely. A very natural
way to do so would be to specify a zero-length timeout, but that's
currently not accepted by the command line parser. Address that.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
When redefining checkpoints from scratch we'd not set the 'current'
checkpoint if there wasn't any. This meant that the code wasn't ever
able to set a 'current' checkpoint as any other one looks up if the
parent of the redefined checkpoint is current.
Since the backup code then requires the current checkpoint to start the
lookup we'd not be able to perform a backup after restoring the
checkpoint hierarchy.
Reported-by: Eyal Shenitzky <eshenitz@redhat.com>
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Skip the liveness and capability checks when redefining checkpoints as
we don't need qemu interactions to update the metadata.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Add a comment noting that job update can cause the pointer to be invalid
and thus should not be accessed after.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Mores <pmores@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
No callers use it any more. Additionally if qemuBlockJobUpdate was
called with the last reference of the job e.g. in
qemuBlockJobRefreshJobs, the reading of the job state would happen from
freed memory.
Reported-by: Pavel Mores <pmores@redhat.com>
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Mores <pmores@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Upcoming patch will remove it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Mores <pmores@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
virStorageFileSupportsSecurityDriver ends up initializing the storage
file backend which after the recent changes to the daemon architecture
may end up dlopening of the backend modules.
Since this is required only for remote storage we can optimize the call
by moving the check whether the backend is supported to the branch which
deals with remote storage.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Mores <pmores@redhat.com>
Treat the shortcut for chowning local files as a stand-alone section
by returning success from it and refactor the rest so that the cleanup
section is inline.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Mores <pmores@redhat.com>
The same timeout as libvirtd can't be used for virtlogd: even with
socket activation in place, any message produced by QEMU on its
standard output/error between when virtlogd quits due to the timeout
and when it's started again due to socket activation will get lost.
This reverts commit 02b6005063
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Commit 2ace7a87a8 introduced a logic bug by an improperly
modified condition where we'd skip to the else branch when reusing of
external images was requested and blockdev is available.
The original intentions were to skip the backing store update with
blockdev.
Fix it by only asserting the boolean which was used to track whether we
support update of the backing store only when blockdev is not present
along with the appropriate rename.
https://bugzilla.redhat.com/show_bug.cgi?id=1820016
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
When moving the formatting of this attributes from -drive
to -device, the QEMU_CAPS_USB_STORAGE_WERROR capability
was used, because usb-storage was the last device to gain
this capability.
However this lead to the assumption that QEMU binaries
without the usb-storage device do not support this,
leading to breakage on s390x with blockdev.
Fixes: bb4f3543bbhttps://bugzilla.redhat.com/show_bug.cgi?id=1819250
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Detect the werror property on SCSI and virtio disks.
But clear it if the QEMU supports usb-storage device without it
also supporting this option for usb-storage.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
In previous commit:
commit e6afacb0fe
Author: Daniel P. Berrangé <berrange@redhat.com>
Date: Wed Feb 12 12:26:11 2020 +0000
qemu: start/stop an event loop thread for domains
A bogus comment was added claiming we didn't need to shutdown the
event thread in the qemuProcessStop method, because this would be
done in the monitor EOF callback. This was wrong because the EOF
callback only runs in the case of a QEMU crash or a guest initiated
clean shutdown & poweroff. In the case where the libvirt admin
calls virDomainDestroy, the EOF callback never fires because we
have already unregistered the event callbacks. We must thus always
attempt to stop the event thread in qemuProcessStop.
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reported-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
For http/https URIs we need to preserve the query part as it may be
important to refer to the image.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
If the storage source has the query part set, format it in the output.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Add a new attribute for holding the query part for http(s) disks.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Since we are refreshing the relative paths when doing the blockjobs we
no longer need to load them upfront when doing the snapshot.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Preservation of the relative relationship requires us to load the
backing store strings from the disk images. With blockdev we stopped
detecting the backing chain if it's specified in the XML so the relative
links were not loaded at that point. To preserve the functionality from
the pre-blockdev without accessing the backing chain unnecessarily
during VM startup we must refresh the relative links when relative
block commit or block pull is requested.
https://bugzilla.redhat.com/show_bug.cgi?id=1818655
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
While it is impossible for VIR_ALLOC() to return an error, we
should be consistent with the rest of the code and not continue
initializing the virSecurityDeviceLabelDef structure.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Even with GLib it is still possible for virQEMUCapsNew() to
return NULL because it calls virQEMUCapsInitialize() which is a
wrapper over pthread_once() which may fail. At least, we still
check for its retval. If it so happens that the virQEMUCapsNew()
fails and returns NULL, we should not dereference it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Unfortunately, yajl_free() is not NOP on NULL. It really does
expect a valid pointer. Therefore, check whether the pointer we
want to pass to it is NULL or not.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The daemons are not supported on Win32 and therefore were not compiled
in that platform. However, with the daemon code sharing, all the code in
utils *is* compiled and it failed because `waitpid`, `fork`, and
`setsid` are not available. So, as before, let's not build them on
Win32 and make the code more portable by using existing vir* wrappers.
Signed-off-by: Rafael Fonseca <r4f4rfs@gmail.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Rafael Fonseca <r4f4rfs@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Rafael Fonseca <r4f4rfs@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Rafael Fonseca <r4f4rfs@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Several daemons have similar code around general daemon startup code.
Let's move it into a file and share it among them.
Signed-off-by: Rafael Fonseca <r4f4rfs@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The quotes are forbidden only inside the value, but the value itself may
be enclosed in quotes. Fix the RNG schema and validator and add a test
case.
https://bugzilla.redhat.com/show_bug.cgi?id=1804750
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Commit 5540acb9a2 added a minimum size verification for the target
size of ppc64 NVDIMMs but forgot to remove a MAX() size check that
was being used in earlier reviews of that commit. The size
verification makes this check unneeded since we're making sure
that guestArea will always be at least equal to ppc64AlignSize.
Fixes: 5540acb9a2
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This is the only instance of g_autofree change applicable for
qemu_agent.c
Signed-off-by: Seeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This fixes a FreeBSD build error from
commit a11a0e6e84
Author: Rafael Fonseca <r4f4rfs@gmail.com>
Date: Tue Mar 24 17:14:30 2020 +0100
bhyve: move video default logic to driver
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Move the liveness check prior to the capability check. If the VM is
offline the capabilities are not initialized and thus we'd report the
wrong error.
https://bugzilla.redhat.com/show_bug.cgi?id=1812531
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
The code attempting to clean up after a failed pull mode backup job
wrongly entered monitor but didn't clean up nor exit monitor due to a
logic bug. Fix the condition.
Introduced in a1521f84a5https://bugzilla.redhat.com/show_bug.cgi?id=1817327
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Move the liveness check prior to the capability check. If the VM is
offline the capabilities are not initialized and thus we'd report the
wrong error.
https://bugzilla.redhat.com/show_bug.cgi?id=1812531
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Host-model CPU definitions (and domain capabilities) will use the
original CPU models (without noTSX in their name) and explicitly disable
hle and rtm features. This way domains with host-model CPUs will be
migratable even to older versions of libvirt which do not support the
noTSX model variants.
The new models will be advertised in host capabilities and they may
be used explicitly with custom CPUs.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Tested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
The element specifies whether a particular CPU model can be used when
creating a CPU definition from raw CPUID/MSR data. The @host attribute
determines whether the CPU model can be used (host='on') for creating
CPU definition for host capabilities. Usability of the model for domain
capabilities and host-model CPU definitions is controlled by the @guest
attribute.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Tested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
One of the mitigation methods for TAA[1] is to disable TSX
support on the host system. Linux added a mechanism to disable
TSX globally through the kernel command line, and many Linux
distributions now default to tsx=off. This makes existing CPU
models that have HLE and RTM enabled not usable anymore.
Add new versions of all CPU models that have the HLE and RTM
features enabled, that can be used when TSX is disabled in the
host system.
On systems disabling the features without those types defined
in cpu-maps users end up without modern CPU types in the list
of usable CPUs to use in the likes of virsh domcapabilities
or tools higher in the stack like virt-manager.
This adds:
-Cascadelake-Server-noTSX
-Icelake-Client-noTSX
-Icelake-Server-noTSX
-Skylake-Server-noTSX-IBRS
-Skylake-Client-noTSX-IBRS
Introduced in QEMU by commit v4.2.0-rc2-3-g9ab2237f19 (function)
and commit v4.2.0-rc2-4-g02fa60d101 (names)
References:
[1] TAA, TSX asynchronous Abort:
https://software.intel.com/security-software-guidance/insights/deep-dive-intel-transactional-synchronization-extensions-intel-tsx-asynchronous-aborthttps://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/tsx_async_abort.html
Fixes: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1853200
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Message-Id: <20200310104806.2723-2-christian.ehrhardt@canonical.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
The PMU feature is enabled by default in ppc64 guests and can't
be disabled via Libvirt or QEMU [1]. The current PMU feature
implementation does not allow PMU to enabled or disabled in the
ppc64 guest. Declaring the PMU feature will make the 'pmu'
property to be passed on to QEMU, but this property isn't
available for ppc64:
qemu-kvm: can't apply global host-powerpc64-cpu.pmu=on: Property '.pmu' not found
A similar error is thrown when trying to disable the PMU.
This patch standardizes the PMU handling for ppc64 guests by:
- throwing an error if the user attempts to set the feature to
'off', given that this feature can't be turned off at all;
- allowing the feature to be declared as 'on' in the domain XML.
This is done by skipping ppc64 guests when creating the command
line for this feature.
[1] https://www.redhat.com/archives/libvir-list/2020-March/msg00874.html
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Hyperv features are supported by both x86 and aarch64. The <hyperv/>
declaration in the XML by itself is benign to other architectures,
but any of its 14 current features will break QEMU with an error
like this (from ppc64):
qemu-kvm: Expected key=value format, found hv_relaxed
This is a more extreme case than the one for apic eoi because we
would need an extra 'switch' statement, with all current Hyperv
features in the body of qemuDomainDefValidateFeatures(), to
check if the user attempted to activate any of them. It's easier to
simply fail to launch with any 'hyperv' declaration in the XML for
every arch which is not x86 and aarch64.
A fair disclaimer about Windows and PowerPC: the last Windows version
that ran in the architecture is the hall of famer Windows NT 4.0,
launched in 1996 and with end of extended support for the Server
version in 2004 [1]. I am acknowledging that there might be Windows
NT 4.0 users running in PowerPC, but not enough people running it
under KVM/QEMU to justify Libvirt allowing 'hyperv' to exist in the
domain XML of ppc64 domains.
[1] https://en.wikipedia.org/wiki/Windows_NT_4.0
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
