If running libvirtd via systemd, it gets a 64 MB memlock limit, but if
running from the shell it will only get 64 KB on a Fedora 33 system.
The latter low limit causes any attempt to use BPF to fail and it is
not obvious why.
This improves the error message thus:
# virsh -c lxc:/// start sh
error: Failed to start domain 'sh'
error: internal error: guest failed to start: Failure in libvirt_lxc startup: failed to initialize device BPF map; locked memory limit for libvirtd probably needs to be raised: Operation not permitted
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The g_idle_add function adds a callback to the primary GMainContext.
To workaround the GSource unref bugs, we need to add our callbacks
to the GMainContext that is associated with the GSource being
unref'd. Thus code using the per-VM virEventThread must use its
private GMainContext.
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Give guidance on how to check minimum meson version for a given package.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/140
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Somehow, command argument was not printed into debug logs. It is
imperative that all arguments are logged.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
When connecting to the monitor, a timeout is calculated that is
bigger the more memory guest has (because QEMU has to allocate
and possibly zero out the memory and what not, empirically
deducted). However, when computing the timeout the @total_memory
mmember is accessed directly even though
virDomainDefGetMemoryTotal() should have been used.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We don't like virXXXPtr typedefs really and they are going away
shortly, possibly. Do not encourage new code to put in the
typedefs.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
In the past, we used to have this oomtrace.pl script that
attempted to print the stack trace of where an OOM error
occurred and it used addr2line for that. But since v5.8.0-rc1~189
we don't really care about OOM anymore and the script is long
gone so there's no need to check for addr2line program either.
Fixes: 2c52ecd960
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
We now wrap all its important functionality with the much more
user-friendly ci/helper script, and the long term plan is for
the Makefile to disappear completely.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
The functionality is now available in the ci/helper script.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This simply calls the underlying Makefile target, but allows
additional arguments to be specified in a more convenient and
discoverable way.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This simply calls the underlying Makefile target, but allows
additional arguments to be specified in a more convenient and
discoverable way.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This simply calls the underlying Makefile target, but allows
additional arguments to be specified in a more convenient and
discoverable way.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This simply calls the underlying Makefile target.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This provides the same functionality as the two refresh scripts
that are currently in the repository, with the following
advantages:
* all files are refreshed with a single command;
* if lcitool is present in the user's $PATH, it will be
discovered and used automatically;
* some output is produced, so the user can follow along with
the progress of the operation.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This is intended to be perform a number of CI-related operations
that are currently implemented in various different scripts
written in various different programming languages.
Eventually, all existing functionality will be reimplemented in
Python and made available through this single entry point; for
now, let's start with a very basic skeleton.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
The target was renamed when moving to Meson, but the help text
was not updated accordingly.
Fixes: 1a0af38ae7
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
There were a number of occurrences where we used nested inline markup
(verbatim + refs) which is currently not possible with RST syntax [1].
There is a possible workaround involving substitution definitions like
.. |virConnectPtr| replace:: ``virConnectPtr``
.. _virConnectPtr: /html/libvirt-libvirt-host.html#virConnectPtr
Substitutions cannot be made generic, hence we cannot create a template
for substitution and use a single template everywhere, so we'd end up
with a lot of clutter and convolution. Therefore, we can make an
exception and just link the data type without further style markup.
[1] https://docutils.sourceforge.io/FAQ.html#is-nested-inline-markup-possible
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
When switching to g_autoptr this was incorrectly changed from
'continue;' into 'return -1;' resulting into an error when user tries
to set vcpu_quota of running VM:
error: An error occurred, but the cause is unknown
Fixes: e4a8bbfaf2
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
In short, virXXXPtr type is going away. With big bang. And to
help us rewrite the code with a sed script, it's better if each
variable is declared on its own line.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The name is supposed to be virCapsGuestArchPtr not ..ptr.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The aim of virSecurity rule is to discourage from using plain
virSecurityManager*() APIs within QEMU driver in favor of their
qemuSecurity*() counterparts. The reason is simple: namespaces;
virSecurityManager*() needs additional
virSecurityManagerTransactionCommit() call to enter given
namespace and do its work from there. And that's exactly what
those qemuSecurity*() wrappers do.
To help us ensure correctness (from this POV), we have a
syntax-check rule that forbids any occurrence of
"virSecurityManager" string under src/qemu/ (except for
qemu_security of course).
But with if we want to remove virSecurityManagerPtr type, then we
have to allow "virSecurityManager *". Therefore, change the rule
so that no call of a function with "virSecurityManager" prefix is
allowed. And also change the name to better reflect what is going
on.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The use of virXXXPtr is going away soon, therefore use 'virXXX *'
instead.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
What we are using really is heap allocated structure rather than
stack allocated. And for that it's better to use g_autoptr() +
G_DEFINE_AUTOPTR_CLEANUP_FUNC() combo, as Glib documentation for
g_auto() reads:
This is meant to be used with stack-allocated structures and
non-pointer types. For the (more commonly used) pointer
version, see g_autoptr().
This will be even more visible, when virSysinfoDefPtr type is
gone. Stay tuned.
Fixes: cee3a900a0
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The qemu shim spawns a separate thread in which the event loop is
ran. The virEventRunDefaultImpl() call is wrapped in a while()
loop, just like it should. There are few lines of code around
which try to ensure that domain is destroyed (when quitting) and
that the last round of event loop is ran after the
virDomainDestroy() call. Only after that the loop is quit from
and the thread quits.
However, if domain creation fails, there is no @dom to call
destroy over, the @quit flag is never set and while() never
exits. Set the flag regardless of @dom pointer.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1920337
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
The commandline generator for 'iothread' objects has a private
implementation of the properties. Convert it to JSON so that it can be
later validated.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
While the 'sev0' sev-guest object will never be hotplugged, but we want
to generate it through JSON so that we'll be able to validate all
parameters of '-object' against the QAPI schema once 'object-add' is
qapified in qemu.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
While the 'masterKey0' secret object will never be hotplugged we want to
generate it through JSON so that we'll be able to validate all
parameters of '-object' against the QAPI schema once 'object-add' is
qapified in qemu.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Commit 94e45d1042 broke exec-restart of virtlogd and virtlockd as the
code waiting for the daemon shutdown closed the daemons before
exec-restarting.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1912243
Fixes: 94e45d1042
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Recent changes which meant to fix daemon shutdown broke the exec-restart
capability of virtlogd and virtlockd, since the code actually closed all
the sockets and shut down all the internals.
Add virNetDaemonQuitExecRestart, which requests a shutdown of the
process, but keeps all the services open and registered since they are
preserved across the restart.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This problem is reproducible only with secret driver. When
starting a domain via virt-qemu-run and both secret and
(nonexistent) root directory specified this is what happens:
1) virt-qemu-run opens "secret:///embed?root=$rootdir"
connection, which results in the secret driver initialization
(done in secretStateInitialize()). During this process, the
driver creates its own configDir (derived from $rootdir)
including those parents which don't exists yet. This is all
done with the mode S_IRWXU and thus results in the $rootdir
being created with very restrictive mode (specifically, +x is
missing for group and others).
2) now, virt-qemu-run opens "qemu:///embed?root=$rootdir" and
calls virDomainCreateXML(). This results in the master-key.aes
being written somewhere under the $rootdir and telling qemu
where to find it.
But because the secret driver created $rootdir with too
restrictive mode, qemu can't access the file (even though it
knows the full path) and fails to start.
It looks like the best solution is to pre-create the root
directory before opening any connection (letting any driver
initialize itself) and set its mode to something less
restrictive.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1859873
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
In theory, users might want to use a relative path as a root
directory for embed drivers. But in practice, nothing in driver
initialization (specifically QEMU driver since it's the only one
that supports embedding now), is prepared for that. Document and
enforce absolute paths.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1883725
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Since v6.2.0-rc1~238 (and friends) QMP processing was moved to a
per-domain thread. Therefore, it is now safe to call APIs from
the event loop thread (e.g. just like qemu shim is doing in
qemuShimEventLoop(). However, it is still important to let the
event loop run after each API call (obviously).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
'res->owners' is allocated to 'res->nOwners' elements, but unfortunately
'res->nOwners' doesn't contain the proper value until after the
allocation so 0 elements are allocated. The following loop which assumes
that the array has the right number of elements then accesses the
pointer out of bounds. The bug was also faithfully converted from
VIR_ALLOC_N to g_new0.
Fixes: 4a3d6ed5ee
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Recent refactor marked 'object' which is returned from the function as
autofree but forgot to use g_steal_pointer in the return statement to
prevent freeing it.
Fixes: 9a1651f64d
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Commit cb29e4e801 didn't take into account that the VM can be inactive
when it's destroyed. This means that the job would remain active also
when the VM became inactive.
To fix this properly:
1) Remove the bogus VM liveness check and early return
(reverts the aforementioned commit)
2) Conditionalize the stats assignment only when the stats object is
present
(properly fix the crash when VM dies when reconnecting)
3) end the asyncjob only when it was already set
(prevent corruption of priv->jobs_queued)
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1937598
Fixes: cb29e4e801
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
'qemuBackupJobTerminate' needs the API flags to see whether
VIR_DOMAIN_BACKUP_BEGIN_REUSE_EXTERNAL. Unfortunately when called via
qemuProcessReconnect()->qemuProcessStop() early (e.g. if the qemu
process died while we were reconnecting) the job is cleared temporarily
so that other APIs can be called. This would mean that we couldn't clean
up the files in some cases.
Save the 'apiFlags' inside the backup object and set it from the
'qemuDomainJobObj' 'apiFlags' member when reconnecting to a VM.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
There was a bug in the code adding TasksMax property. It remained
undetected because all tests used '0' for @maxthreads.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
g_variant_new_parsed uses '%t' for a uint64_t rather than printf-like
%llu. Additionally ensure that the passed value is a uint64_t since the
argument used is a 'unsigned int'.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1937287
Fixes: bf5f2ed09c
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
The function is now unused and motivated users to write crazy parsers
which were hard to understand, had pointless error paths just to avoid
few memory allocations.
Remove the function as we're fine with g_strndup and virStrcpy.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use g_strsplit to split the string and avoid use of stack'd strings.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This is similar to my earlier commit which documented lxc.conf
location. Just like LXC, the libxl driver has only the system
connection and thus only few places need changing.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
The libxl driver has no session daemon therefore its split daemon
(virtxend) has to be ran as root. Any attempt to start it with
euid != 0 fails. This is why the daemon does not look under any
of XDG_* paths either.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
This is similar to my earlier commit which documented qemu.conf
locations. Luckily, the LXC driver has only the system connection
and not session or embed one.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
