The existing function is renamed and called from the new one, so
that even while we're in the process of implementing new checks
all the existing ones will be performed.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
In qemuMigrationSrcRun, we already checked for non-NULL mig
and then dereferenced it. It's only possible for mig to be
NULL in the error section.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
This function was introduced in commit 41f5c2ca27 as a way
to probe the same property for multiple devices at once.
Although the resulting representation is very compact, it
doesn't provide any extra features compared to the existing
virQEMUCapsProcessStringFlags() mechanism, which is already
used for pretty much all device properties.
Drop the custom function and datatypes and start using the
standard ones instead.
Note that, in theory, the end result is not identical
because we're no longer probing properties for
virtio-serial-pci
virtio-9p-pci
virtio-rng-pci
virtio-input-host-pci
virtio-keyboard-pci
virtio-mouse-pci
virtio-tablet-pci
However, chances of any of those devices being compiled
into a QEMU binary where
virtio-balloon-pci
virtio-blk-pci
virtio-scsi-pci
virtio-net-pci
virtio-gpu-pci
are compiled out are slim enough that it doesn't make any
difference in practice, as the lack of test suite churn
shows.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
In some cases, we are probing multiple devices for the same
property and setting the corresponding capability if it's
found on any of the devices: when that happens, we can quit
early after finding the first property and avoiding a bunch
of string comparisons.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Commit 4ae59411fa introduced the ability to make probing for
device properties conditional on a capability being set, but
didn't extend the use of this feature to existing devices.
This commit does the last bit of work, which results in a lot
of pointless QMP chatter no longer happening and our test suite
shrinking a fair bit.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
If the user tries to define a domain that has
<controller type='usb' model='none'/>
and also some USB devices, we report an error:
error: internal error: No free USB ports
Which is technically still correct for a domain with no USB ports.
Change it to:
USB is disabled for this domain, but USB devices are present in the domain XML
https://bugzilla.redhat.com/show_bug.cgi?id=1347550
Signed-off-by: Ján Tomko <jtomko@redhat.com>
When trying to destroy a domain (e.g. because we've seen EOF on
the monitor) we try to acquire QEMU_JOB_DESTROY. However, if
max_queued is set in qemu.conf this may fail and since our code
doesn't count on that we will still report domain as active even
though the qemu process is long gone. More specifically, if we've
seen EOF on the monitor, qemuProcessHandleMonitorEOF() is called
which sends MONITOR_EOF job to the event worker pool and
unregisters monitor from the event loop. The worker pool calls
processMonitorEOFEvent() which tries to set job which may fail
due to the limit as described above.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Fix this common typo and assign a value rather than implicitly
type-casted comparison result. Introduced by commit b6a264e855.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
12 bytes in 1 blocks are definitely lost in loss record 188 of 1,145
at 0x4C2B6CD: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
by 0x5D2CD77: xmlStrndup (in /lib/x86_64-linux-gnu/libxml2.so.2.7.8)
by 0x514E137: virXMLPropString (virxml.c:506)
by 0x234F51: qemuMigrationCookieNetworkXMLParse qemu_migration.c:1001)
by 0x235FF8: qemuMigrationCookieXMLParse (qemu_migration.c:1333)
by 0x236214: qemuMigrationCookieXMLParseStr (qemu_migration.c:1372)
by 0x2365D2: qemuMigrationEatCookie (qemu_migration.c:1456)
by 0x243DBA: qemuMigrationFinish (qemu_migration.c:6381)
by 0x204032: qemuDomainMigrateFinish3 (qemu_driver.c:13228)
by 0x521CCBB: virDomainMigrateFinish3 (libvirt-domain.c:4788)
by 0x1936DE: remoteDispatchDomainMigrateFinish3 (remote.c:4580)
by 0x16DBB1: remoteDispatchDomainMigrateFinish3Helper(remote_dispatch.h:7582)
Signed-off-by: ZhangZijian <zhang.zijian@h3c.com>
This partially reverts 82592551cb.
When migrating a domain, qemuMigrationDstPrepareAny() is called
which eventually calls qemuProcessLaunch(conn = NULL, flags =
VIR_QEMU_PROCESS_START_AUTODESTROY); But the very first thing
that qemuProcessLaunch does is check if AUTODESTROY flag is set
and @conn is not NULL. Well, it is.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1494454
If a domain disk is stored on local filesystem (e.g. ext4) but is
not being migrated it is very likely that domain is not able to
run on destination. Regardless of share/cache mode.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
When calling virDomainDefCompatibleDevice to check a new device during
device update, we need to pass the original device which is going to be
updated in addition to the new device. Otherwise, the function can
report false conflicts.
The new argument is currently ignored by virDomainDefCompatibleDevice,
but this will change in the following patch.
https://bugzilla.redhat.com/show_bug.cgi?id=1546971
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Rather than having the caller check, if the input @addrs is NULL
(e.g. priv->usbaddrs), then just return 0. This also removes the
need for ATTRIBUTE_NONNULL which only really helped if someone
passed a NULL as a parameter not if the passed parameter is NULL.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than having the caller check, if the input @addrs is NULL
(e.g. priv->usbaddrs), then just return 0. This also removes the
need for ATTRIBUTE_NONNULL which only really helped if someone
passed a NULL as a parameter not if the passed parameter is NULL.
Signed-off-by: John Ferlan <jferlan@redhat.com>
This flag is only used for tests. Let's instead overload bind syscall
in mocks where it is not done yet.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Range check in virPortAllocatorSetUsed is not useful anymore
when we manage ports for entire unsigned short range values.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Range check in virPortAllocatorSetUsed is not useful anymore
when we manage ports for entire unsigned short range values.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Host tcp4/tcp6 ports is a global resource thus we need to make
port accounting also global or we have issues described in [1] when
port allocator ranges of different instances are overlapped (which
is by default for qemu for example).
Let's have only one global port allocator object that take care
of the entire ports range (0 - 65535) and introduce port range object
for clients to specify desired auto allocation band.
[1] https://www.redhat.com/archives/libvir-list/2017-December/msg00600.html
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Ensure all enum cases are listed in switch statements, or cast away
enum type in places where we don't wish to cover all cases.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
GCC 8 became more fussy about detecting switch
fallthroughs. First it doesn't like it if you have
a fallthrough attribute that is not before a case
statement. e.g.
FOO:
BAR:
WIZZ:
ATTRIBUTE_FALLTHROUGH;
Is unacceptable as there's no final case statement,
so while FOO & BAR are falling through, WIZZ is
not falling through. IOW, GCC wants us to write
FOO:
BAR:
ATTRIBUTE_FALLTHROUGH;
WIZZ:
Second, it will report risk of fallthrough even if you
have a case statement for every single enum value, but
only if the switch is nested inside another switch and
the outer case statement has no final break. This is
is arguably valid because despite the fact that we have
cast from "int" to the enum typedef, nothing guarantees
that the variable we're switching on only contains values
that have corresponding switch labels. e.g.
int domstate = 87539319;
switch ((virDomainState)domstate) {
...
}
will not match enum value, but also not raise any kind
of compiler warning. So it is right to complain about
risk of fallthrough if no default: is present.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The controller model is slightly unusual in that the default value is
-1, not 0. As a result the default value is not covered by any of the
existing enum cases. This in turn means that any switch() statements
that think they have covered all cases, will in fact not match the
default value at all. In the qemuDomainDeviceCalculatePCIConnectFlags()
method this has caused a serious mistake where we fallthrough from the
SCSI controller case, to the VirtioSerial controller case, and from
the USB controller case to the IDE controller case.
By adding explicit enum constant starting at -1, we can ensure switches
remember to handle the default case.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
There's no need to perform checks before conversion, we can just
call virDomainControllerPCIModelNameTypeToString() and check the
results later on.
Since the variables involved are only used for PCI controllers,
we can declare them in the 'case' scope rather than in the
function scope to make everything a bit nicer while at it.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Performing the skip earlier will help us making the function
nicer later on. We also make the condition for the skip a bit
more precise, though that'a more for self-documenting purposes
and doesn't change anything in practice.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
It is very difficult while reading the migration code trying to
understand whether a particular function is being called on the src side
or the dst side, or either. Putting "Src" or "Dst" in the method names will
make this much more obvious. "Any" is used in a few helpers which can be
called from both sides.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
QEMU code does not work well with too big numbers on the JSON monitor so
our monitor code supports sending only numbers up to LLONG_MAX. Avoid a
weird error message by limiting the size of the 'bandwidth' parameter
for block copy.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1532542
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
These APIs are not required anywhere outside the migration code so need
not be exported to the rest of the QEMU driver.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The qemuMigrationPrecreateStorage method needs a connection
to access the storage driver. Instead of passing it around,
open it at time of use.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
There's a few places in startup code paths which pass around a
virConnectPtr which is no longer required. Specifically, the
qemuProcessStart() method now only requires a non-NULL connection if
autodestroy is requested.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
When setting up graphics, we sometimes need to resolve networks,
requiring the caller to pass in a virConnectPtr, except sometimes they
pass in NULL. Use virGetConnectNetwork() to acquire the connection to
the network driver when it is needed.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
During domain startup there are many places where we need to acquire
secrets. Currently code passes around a virConnectPtr, except in the
places where we pass in NULL. So there are a few codepaths where ability
to start guests using secrets will fail. Change to acquire a handle to
the secret driver when needed.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Rather than expecting callers to pass a virConnectPtr into the
virDomainDiskTranslateSourcePool() method, just acquire a connection
to the storage driver when needed.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
There is a long standing hack to pass a virConnectPtr into the
qemuMonitorStartCPUs method, so that when the text monitor prompts
for a disk password, we can lookup virSecretPtr objects. This causes
us to have to pass a virConnectPtr around through countless methods
up the call chain....except some places don't have any virConnectPtr
available so have always just passed NULL. We can finally fix this
disastrous design by using virGetConnectSecret() to open a connection
to the secret driver at time of use.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This wires up the previously added Chassis strings XML schema to be able to
generate comamnd line args for QEMU. This requires QEMU >= 2.1 release
containing this patch:
SMBIOS: Build aggregate smbios tables and entry point
https://git.qemu.org/?p=qemu.git;a=commit;h=c97294ec1b9e36887e119589d456557d72ab37b5
Signed-off-by: Zhuang Yanying <ann.zhuangyanying@huawei.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The documentation for the JSON/qapi type 'UnixSocketAddress' states that
the unix socket path field is named 'path'. Unfortunately qemu uses
'socket' in case of the gluster driver (despite documented otherwise).
Add logic which will format the correct fields while keeping support of
the old spelling.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1544325
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1515533
We're already checking if IPv4 prefix isn't too long. But we are
not checking if it isn't too short. QEMU supports prefixes longer
than 4 (including). I haven't find anything similar related to
IPv6 in qemu sources.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The array indexes are formatted if the JSON->commandline translator is
translating an array type. It does not at all depend on this function.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Instead of storing separately whether the feature is enabled
or not and what resizing policy should be used, store both of
them in a single place.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Instead of storing separately whether the feature is enabled
or not and what driver should be used, store both of them in
a single place.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
When no GIC version is specified, we currently default to GIC v2;
however, that's not a great default, since guests will fail to
start if the hardware only supports GIC v3.
Change the behavior so that a sensible default is chosen instead.
That basically means using the same algorithm whether the user
didn't explicitly enable the GIC feature or they explicitly
enabled it but didn't specify any GIC version.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Keep them along with other arch/machine type checks for
features instead of waiting until command line generation
time.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
