The vm name is not needed for any functional requirement, but it will be
useful when debugging problems to identify which VM is associated with a
filter, since UUID is not human friendly.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Alter qemuBuildTPMDevStr to format the tpm-crb on the command line
and use the enum range checking for valid model.
Add a test case for the formation of the tpm-crb QEMU device
command line. The qemuxml2argvtest changes cannot use the newer
DO_TEST_CAPS_LATEST since building of the command line involves
calling qemuBuildTPMBackendStr which attempts to open the
path to the device (e.g. /dev/tmp0).
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
QEMU on x86_64 (since v2.12) can support tpm-crb devices.
Introduce qemu capabilities for this device.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The 'domrename' command needs to check if the new domain name contains
the slash character. This character is not accepted by libvirt XML
definition because it is an invalid char (see Cole's commit b1fc6a7b7).
This commit enhace the 'domrename' command adding this check.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1333232
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The virStorageFileSupportsSecurityDriver and
virStorageFileSupportsAccess currently just return a boolean
value. This is ok because they don't have any failure scenarios
but a subsequent patch is going to introduce potential failure
scenario. This changes their return type from a boolean to an
int with values -1, 0, 1.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The virStorageFileGetBackingStoreStr method has overloaded the NULL
return value to indicate both no backing available and a fatal
error dealing with it.
The caller is thus not able to correctly propagate the error
messages.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Use the TLS env for migration when starting the NBD server if TLS is
enabled for migration.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
To allow encryption of the non-shared storage migration NBD connection
we will need to instantiated the NBD server with the TLS env.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The NBD server in qemu supports TLS transport. Detect this capability.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
When a VM is destroyed while being migrated (waiting in
qemuMigrationSrcWaitForCompletion) the private object cleanup code frees
the 'current' job info. Since the migration code attempts to setup
various aspects of the current job even on failure this results into a
crash.
Job data is cleared in qemuDomainObjPrivateDataClear since commit
888aa4b6b9
Fix this by skipping all of the code which requires the qemu process to
be alive if the VM is not active any more.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Since libvirt is currently not able to setup the NBD migration stream
secured by TLS we should not allow such migration since data would be
transferred unencrypted.
This will break compatibility of TLS migration if non-shared storage is
requested but the security implications are more severe.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The code setting TLS parameters verifies that TLS is supported by
looking at the dump of parameters which will be reset after migration,
but sets the parameters in the list of new parameters. As
qemuMigrationParamsSetString did not set the 'set' property, the TLS
parameters would not be used.
This is a regression after the series refactoring migration parameters
and it resulted into TLS not being used even when requested.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Introduce a perl script that is able to regroup both
the QEMU_CAPS constants and the capability strings.
Check correct grouping as a part of syntax check.
For in-place regrouping after a rebase, just run:
tests/group-qemu-caps.pl
without any parameters.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The attribute can be used to disable ROM loading completely
for a device.
This might be needed because, even when the guest is configured
such that the PCI ROM will not be loaded in the PCI BAR, some
hypervisors (eg. QEMU) might still make it available to the
guest in a form (eg. fw_cfg) that some firmwares (eg. SeaBIOS)
will consume, thus not achieving the desired result.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1425058
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Rework the code such that virDomainObjListFindByID will always
return a locked/ref counted object so that the callers can
always do the same cleanup logic to call virDomainObjEndAPI.
Makes accessing the objects much more consistent.
NB:
There were 2 callers (lxcDomainLookupByID and qemuDomainLookupByID)
that were already using the ByID name, but not virDomainObjEndAPI -
these were changed as well in this update/patch.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Jim Fehlig <jfehlig@suse.com>
Now that every caller is using virDomainObjListFindByUUIDRef,
let's just remove it and keep the name as virDomainObjListFindByUUID.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Jim Fehlig <jfehlig@suse.com>
If virJSONValueArraySize(caps) <= 0, then we will still need to
virJSONValueFree(caps) because qemuMonitorSetMigrationCapabilities
won't consume it.
Found by Coverity
Signed-off-by: John Ferlan <jferlan@redhat.com>
The code is generic enough to be reused. Move it into a
separate function.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
So far all the properties we are trying to fetch are device
properties, i.e. -device $dev on qemu command line. Change
misleading variable names to express what's queried for better.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The current private XML parsing code relies on the assumption
that NUMA node IDs start from 0 and are densely allocated,
neither of which is necessarily the case.
Change it so that the bitmap size is dynamically calculated by
looking at NUMA node IDs instead, which ensures all nodes will
be able to fit and thus the bitmap will be parsed successfully.
Update one of the test cases so that it would fail with the
previous approach, but passes with the new one.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1490158
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Allocated in qemuMigrationParamsNew() we need to free
priv->job.migParams when no longer needed.
==8061== 234 (192 direct, 42 indirect) bytes in 1 blocks are definitely lost in loss record 112 of 123
==8061== at 0x4C2CF26: calloc (vg_replace_malloc.c:711)
==8061== by 0x5325D05: virAlloc (viralloc.c:144)
==8061== by 0x1984F9: qemuMigrationParamsNew (qemu_migration_params.c:218)
==8061== by 0x19A352: qemuMigrationParamsParse (qemu_migration_params.c:1185)
==8061== by 0x1604D8: qemuDomainObjPrivateXMLParseJob (qemu_domain.c:2390)
==8061== by 0x160AE9: qemuDomainObjPrivateXMLParse (qemu_domain.c:2517)
==8061== by 0x5419EAE: virDomainObjParseXML (domain_conf.c:20442)
==8061== by 0x541A25E: virDomainObjParseNode (domain_conf.c:20555)
==8061== by 0x541A2FC: virDomainObjParseFile (domain_conf.c:20574)
==8061== by 0x13607D: testCompareStatusXMLToXMLFiles (qemuxml2xmltest.c:75)
==8061== by 0x14F3E8: virTestRun (testutils.c:180)
==8061== by 0x14DCD0: mymain (qemuxml2xmltest.c:1200)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The disk cache mode translates to various frontend and backend
attributes for the qemu block layer. For the frontend device the
'writeback' parameter is used and provided as 'write-cache'. Implement
this so that we can later switch to using -blockdev where we will not
pass the cachemode directly any more.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
QEMU translates the cache mode of a disk internally into 3 flags.
'write-cache' is a flag of the frontend while others are flag of the
backing storage. Add capability which will allow expressing it via the
frontend attribute.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Add helper which will map values of disk cache mode to the flags which
are accepted by various parts of the qemu block layer.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
When qemu does not support changing of the backing store string, we'd
reaport that block pull is not supported instead of block commit.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Replace direct usage of disk->src->driverName with the existing
accessors. The parser code where we assign the driver from XML is
intentionally not fixed to save an allocation.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
There were two places where we'd check this independently. Move it to
the disk definition validation callback. This also fixes possible use of
NULL in a printf for network storage.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
On Core i5 650 x86_64 kvm guest fail to start with error [1] for next cpu config:
<cpu mode='host-model' check='partial'>
<model fallback='allow'/>
<feature policy='require' name='x2apic'/>
</cpu>
The problem is in full CPU calculation in virQEMUCapsInitHostCPUModel.
It is supposed to include features emulated by qemu and missed on host. Some of
such features may be not included however.
For Core i5 650 host CPU is detected as Westmere and reported CPU as
SandyBridge. x2apic is missed on host and provided by installed qemu. The
feature is not mentioned in reported CPU features explicitly because SandyBridge
model include it. As a result full CPU does not include x2apic too.
Solution is to expand guest cpu features before updating fullCPU features.
[1] error: the CPU is incompatible with host CPU: \
Host CPU does not provide required features: x2apic
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
So far we are repeating the following lines over and over:
if (!(virSomeObjectClass = virClassNew(virClassForObject(),
"virSomeObject",
sizeof(virSomeObject),
virSomeObjectDispose)))
return -1;
While this works, it is impossible to do some checking. Firstly,
the class name (the 2nd argument) doesn't match the name in the
code in all cases (the 3rd argument). Secondly, the current style
is needlessly verbose. This commit turns example into following:
if (!(VIR_CLASS_NEW(virSomeObject,
virClassForObject)))
return -1;
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Whenever we declare a new object the first member of the struct
has to be virObject (or any other member of that family). Now, up
until now we did not care about the name of the struct member.
But lets unify it so that we can do some checks at compile time
later.
The unified name is 'parent'.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Add comma escaping for loader->path and loader->nvram.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Add comma escaping for disk->vendor and disk->product when being
built for the command line (and not from hotplug).
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
In order to not affect running VMs, refreshing the halted state
is only performed if QEMU supports the query-cpus-fast QAPI.
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Extract architecture specific data from query-cpus[-fast] if
available. A new function qemuMonitorJSONExtractCPUArchInfo()
can then call architecture-specific extraction handlers.
Initially, there's a handler for s390 cpu info to
set the halted property depending on the s390 cpu state
returned by QEMU. With this it's still possible to report
the halted condition even when using query-cpus-fast.
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Use query-cpus-fast instead of query-cpus if supported by QEMU.
Based on the QEMU_CAPS_QUERY_CPUS_FAST capability.
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Detect whether QEMU supports the QMP query-cpus-fast API
and set QEMU_CAPS_QUERY_CPUS_FAST in this case.
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
If QEMU uses a seccomp blacklist (since 2.11), -sandbox on
no longer tries to whitelist all the calls, but uses sets
of blacklists:
default (always blacklisted with -sandbox on)
obsolete (defaults to deny)
elevateprivileges (setuid & co, default: allow)
spawn (fork & execve, default: allow)
resourcecontrol (setaffinity, setscheduler, default: allow)
If these are supported, default to sandbox with all four
categories blacklisted.
https://bugzilla.redhat.com/show_bug.cgi?id=1492597
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
QEMU commit 1bd6152 changed the default behavior from whitelist
to blacklist and introduced a few sets of system calls.
Use the 'elevateprivileges' parameter of -sandbox as a witness
of this change.
https://bugzilla.redhat.com/show_bug.cgi?id=1492597
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Exit early if possible to simplify the logic.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Move the building of -sandbox command line into a separate function.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Implied by QEMU >= 1.2.0.
Delete the negative test cases now that they always pass.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
