Commit Graph

3751 Commits

Author SHA1 Message Date
Pavel Hrdina
47941ea7f5 vircgroup: extract virCgroupV1CopyMounts
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-09-25 13:40:22 +02:00
Pavel Hrdina
61629d5be3 vircgroup: extract virCgroupV1ValidateMachineGroup
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-09-25 13:40:22 +02:00
Pavel Hrdina
f60af21594 vircgroup: detect available backend for cgroup
We need to update one test-case because now new cgroup object will be
created only if there is any cgroup backend available.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-09-25 13:40:22 +02:00
Pavel Hrdina
57d35b72c9 vircgroup: extract virCgroupV1Available
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-09-25 13:40:16 +02:00
Pavel Hrdina
1f221d610d vircgroup: introduce cgroup v1 backend files
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-09-25 12:37:51 +02:00
Pavel Hrdina
1a2dbb5595 util: introduce vircgroupbackend files
We will need to extract current cgroup v1 implementation into separate
backend because there will be new cgroup v2 implementation and both will
have to co-exist.

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-09-25 12:37:51 +02:00
Pavel Hrdina
8b62008d2b vircgrouptest: call virCgroupNewSelf instead virCgroupDetectMounts
This will be required once cgroup v2 is introduced.  The cgroup
detection is not simple and we will have multiple backends so we
should not just jump into the middle of the detection code.

In order to use virCgroupNewSelf we need to create all the remaining
data files:

    - {name}.cgroups represents /proc/cgroups, it is a list of cgroup
      controllers compiled into kernel

    - {name}.self.cgroup represents /proc/self/cgroup, it describes
      cgroups to which the process belongs

For "no-cgroups" we need to modify the expected behavior because
virCgroupNewSelf() will fail if there are no controllers available.

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-09-25 09:59:23 +02:00
Pavel Hrdina
4988f4b347 vircgrouptest: call virCgroupDetectMounts directly
Because we can set which files to return for cgroup tests there
is no need to have special function tailored to run tests.

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-09-25 09:59:23 +02:00
Pavel Hrdina
7b526ea57c vircgroup: introduce virCgroupAddThread
Once we introduce cgroup v2 support we need to handle processes and
threads differently.

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-09-25 09:59:23 +02:00
Pavel Hrdina
36c5989c54 vircgroup: introduce virCgroupTaskFlags
Use flags in virCgroupAddTaskInternal instead of boolean parameter.
Following patch will add new flag to indicate thread instead of process.

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-09-25 09:59:23 +02:00
Pavel Hrdina
0772c34685 vircgroup: rename virCgroupAdd.*Task to virCgroupAdd.*Process
In cgroup v2 we need to handle processes and threads differently,
following patch will introduce virCgroupAddThread.

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-09-25 09:59:23 +02:00
Pavel Hrdina
63b4ed0dd3 vircgroup: fix bug in virCgroupEnableMissingControllers
If we are on host with systemd we need to build cgroup hierarchy
ourselves for controllers that are not managed by systemd.

As a starting parent we need to force root group because
virCgroupMakeGroup() takes that parent in order to inherit values
for cpuset controller.

By default cpuset controller is managed by systemd so we will never
hit the issue but for v2 cgroups we need to use parent cgroup every
time.

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-09-25 09:59:23 +02:00
Pavel Hrdina
1602aa28f8 vircgroup: cleanup controllers not managed by systemd on error
If virCgroupEnableMissingControllers() fails it could have already
created some directories, we should clean it up as well.

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-09-25 09:59:23 +02:00
Shi Lei
34e9c29357 util: Fix misaligned arguments and misaligned conditions for [if|while|...]
This patch just fixes misaligned arguments and misaligned conditions
of src/util/*.c.

Signed-off-by: Shi Lei <shi_lei@massclouds.com>
2018-09-24 10:02:40 +02:00
John Ferlan
2c476dbc07 util: Fix travis build error
Commit 12093f1f used %ld instead of %zd for a size_t.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2018-09-20 14:57:22 -04:00
John Ferlan
e3a42028af Remove ignore_value or void from unlink calls
There seems to be no need to add the ignore_value wrapper or
caste with (void) to the unlink() calls, so let's just remove
them. I assume at one point in time Coverity complained. So,
let's just be consistent - those that care to check the return
status can and those that don't can just have the naked unlink.

Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-09-20 13:45:56 -04:00
Wang Huaqiang
6af8417415 conf: Introduce RDT monitor host capability
This patch is introducing cache monitor(CMT) to cache and
memory bandwidth monitor(MBM) for monitoring CPU memory
bandwidth.

The host capability of the two monitors is also introduced
in this patch.

For CMT, the host capability is shown like:
  <host>
  ...
    <cache>
      <bank id='0' level='3' type='both' size='15' unit='MiB' cpus='0-5'>
        <control granularity='768' min='1536' unit='KiB' type='both' maxAllocs='4'/>
      </bank>
      <monitor level='3' 'reuseThreshold'='270336' maxMonitors='176'>
        <feature name='llc_occupancy'/>
      </monitor>
    </cache>
    ...
  </host>

For MBM, the capability is shown like this:
  <host>
    ...
    <memory_bandwidth>
      <node id='1' cpus='6-11'>
        <control granularity='10' min ='10' maxAllocs='4'/>
      </node>
      <monitor maxMonitors='176'>
        <feature name='mbm_total_bytes'/>
        <feature name='mbm_local_bytes'/>
      </monitor>
    </memory_bandwidth>
    ...
  </host>

Signed-off-by: Wang Huaqiang <huaqiang.wang@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-09-20 13:06:02 -04:00
Wang Huaqiang
12093f1fea util: Introduce monitor capability interface
This patch introduces the resource monitor and creates the interface
for getting host capability of resource monitor from the system resource
control file system.

The resource monitor takes the role of RDT monitoring group and could be
used to monitor the resource consumption information, such as the last
level cache occupancy and the utilization of memory bandwidth.

Signed-off-by: Wang Huaqiang <huaqiang.wang@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-09-20 13:06:02 -04:00
Erik Skultety
5165ff0971 src: More cleanup of some system headers already contained in internal.h
All of the ones being removed are pulled in by internal.h. The only
exception is sanlock which expects the application to include <stdint.h>
before sanlock's headers, because sanlock prototypes use fixed width
int, but they don't include stdint.h themselves, so we have to leave
that one in place.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Acked-by: Michal Privoznik <mprivozn@redhat.com>
2018-09-20 10:16:39 +02:00
Erik Skultety
9403b63102 internal: Move <stdio.h> include to internal.h
It doesn't really make sense for us to have stdlib.h and string.h but
not stdio.h in the internal.h header.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Acked-by: Michal Privoznik <mprivozn@redhat.com>
2018-09-20 10:16:38 +02:00
Jiri Denemark
602ecdf2ab Drop \n at the end of VIR_DEBUG messages
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2018-09-19 14:05:59 +02:00
Michal Privoznik
afd5a27575 virlockspace: Allow caller to specify start and length offset in virLockSpaceAcquireResource
So far the virLockSpaceAcquireResource() locks the first byte in
the underlying file. But caller might want to lock other range.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-09-18 17:12:53 +02:00
Shi Lei
c9ed87a610 src: remove blank first line in function body
Signed-off-by: Shi Lei <shi_lei@massclouds.com>
2018-09-17 13:29:01 +02:00
Shi Lei
ab9a145926 src: fix incorrect indentation in function body by checking first line
Signed-off-by: Shi Lei <shi_lei@massclouds.com>
2018-09-17 13:29:00 +02:00
Andrea Bolognani
679895eb5d conf: Move more PCI functions out of device_conf
Functions that deal with virPCIDeviceAddress exclusively
belong to util/virpci.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-09-17 09:23:04 +02:00
Lin Ma
317e3b2865 util: Return a virArpTablePtr when the nlmsghdr for loop is over
commit b00c9c39 removed the label end_of_netlink_messages and 'return
table' statement, It causes the function virArpTableGet doesn't return
a proper virArpTable pointer.

How to reproduce:
 # virsh domiflist sles12sp3
Interface  Type       Source     Model       MAC
-------------------------------------------------------
vnet0      network    default    virtio      52:54:00💿02:e6

 # virsh domifaddr sles12sp3 --source arp
error: Failed to query for interfaces addresses
error: An error occurred, but the cause is unknown

It seems that the "if (nh->nlmsg_type == NLMSG_DONE)" statement won't be
meted. So this patch adds 'return table' when the iterations of nlmsghdr
for loop is over.

Signed-off-by: Lin Ma <lma@suse.com>
Reviewed-by: Chen Hanxiao <chenhanxiao@gmail.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-09-14 11:18:28 -04:00
Martin Kletzander
b49a3ad799 util: Add stubs for virDoes{User,Group}Exist() without getpwuid_r
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2018-09-14 09:14:18 +02:00
Martin Kletzander
b984bbcc0d Add functions for checking if user or group exists
Instead of duplicating the code from virGet{User,Group}IDByName(), which are
static anyway, extend those functions to accept NULL pointers for the result and
a boolean for controlling the error reporting.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2018-09-13 16:19:25 +02:00
Shi Lei
8174e41bc4 util: netdev: use VIR_AUTOCLOSE instead of VIR_FORCE_CLOSE
Signed-off-by: Shi Lei <shi_lei@massclouds.com>
2018-09-12 17:35:38 +02:00
Shi Lei
4f446cad17 util: netdevbridge: use VIR_AUTOCLOSE instead of VIR_FORCE_CLOSE
Signed-off-by: Shi Lei <shi_lei@massclouds.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2018-09-12 17:35:38 +02:00
Shi Lei
bd96c753e2 util: file: use VIR_AUTOCLOSE instead of VIR_FORCE_CLOSE
Signed-off-by: Shi Lei <shi_lei@massclouds.com>
2018-09-12 17:35:38 +02:00
Shi Lei
09d35afd2c util: file: introduce VIR_AUTOCLOSE macro to close fd of the file automatically
Signed-off-by: Shi Lei <shi_lei@massclouds.com>
2018-09-12 17:35:38 +02:00
Shi Lei
ffd31684be util: netlink: Use virNetlinkNewLink helper to simplify virNetDev*Create
This patch simplifies virNetDevBridgeCreate and virNetDevMacVLanCreate
functions by making use of the virNetlinkNewLink helper.

Signed-off-by: Shi Lei <shi_lei@massclouds.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-09-12 09:27:26 +02:00
Shi Lei
b6ba2b961a util: netlink: Add some wrapper macros to get rid of redundancy
This patch adds wrapper macros around nla_nest_[start|end] and nla_put,
thus getting rid of some redundancy and making virNetlinkNewLink more
readable.

Signed-off-by: Shi Lei <shi_lei@massclouds.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
2018-09-12 09:27:26 +02:00
Shi Lei
a2e5aad003 util: netlink: Introduce virNetlinkNewLink helper
This patch introduces virNetlinkNewLink helper which wraps the common
libnl/netlink code to create a new link.

Signed-off-by: Shi Lei <shi_lei@massclouds.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
2018-09-12 09:27:26 +02:00
Shi Lei
74cd6a538d util: netlink: Replace virNetDevPutExtraHeader with nlmsg_append
nlmsg_append from the libnl library provides exactly the same
functionality, so we should rely on that instead. This also allows us to
drop the aforementioned function completely.

Signed-off-by: Shi Lei <shi_lei@massclouds.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-09-07 14:38:23 +02:00
Shi Lei
f9a59e051c util: netdevip: Fix a memleak in virNetDevIPRouteAdd
@resp is allocated by virNetlinkCommand and the caller is responsible
for freeing the buffer. Since we already converted this module to use
VIR_AUTO{FREE,PTR} macros, let's resolve the problem by using them.

Signed-off-by: Shi Lei <shi_lei@massclouds.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-09-07 13:33:57 +02:00
Andrea Bolognani
ca7ad978a9 util: Drop virPCIGetAddrString()
There's a single user for it which takes an existing
virPCIDeviceAddress, passes its various bits to the
function which in turn constructs a virPCIDevice and
then copies the string representation for the caller
to use: we can use virPCIDeviceAddressAsString()
instead and avoid creating the virPCIDevice in the
first place. Since the function ends up having no
users after the change, we can just drop it.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2018-09-05 15:51:42 +02:00
Andrea Bolognani
a14f597266 conf: Rename virDomainPCIAddressAsString()
The struct is called virPCIDeviceAddress and the
functions operating on it should be named accordingly.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2018-09-05 15:51:40 +02:00
Andrea Bolognani
b72183223f conf: Move virDomainPCIAddressAsString() to util/virpci
It's a better fit than conf/domain_conf.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2018-09-05 15:51:28 +02:00
Peter Krempa
68ecbca5d3 util: json: Allow converting a virTristate(Bool|Switch) into JSON
Add a new modifier letter for virJSONValueObjectAddVArgs which will add
a boolean value with our tristate semantics. The value is omitted when
the _ABSENT value is used.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-08-28 13:46:29 +02:00
Daniel P. Berrangé
350e238f63 xml: report the filename (if any) when parsing files
A generic "failed to parse xml document" message without telling us
which XML file failed is quite unhelpful.

Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-08-28 12:08:21 +01:00
Pavel Hrdina
b14b88b74c vircgroup: Remove obsolete sa_assert
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-27 17:40:24 +02:00
Pavel Hrdina
0ec8416f04 vircgroup: Simplify if conditions in virCgroupMakeGroup
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-27 17:40:17 +02:00
Pavel Hrdina
b013bdfd79 vircgroup: Call virCgroupRemove inside virCgroupMakeGroup
This fixes virCgroupEnableMissingControllers where virCgroupRemove
was not called in case virCgroupMakeGroup failed.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-27 17:40:11 +02:00
Pavel Hrdina
998658bd1e vircgroup: Split virCgroupPathOfController into two functions
The case where we need path of any controller is only for internal use
so move it out to a different function.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-27 17:40:05 +02:00
Pavel Hrdina
3ae7b99094 vircgroup: Extract placement validation into function
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-27 17:39:55 +02:00
Pavel Hrdina
bddf975c76 vircgroup: Extract controller detection into function
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-27 17:39:48 +02:00
Pavel Hrdina
4b2fb60777 vircgroup: Duplicate string before modifying
The 'mntDir' is part of 'struct mntent' as a result of getmntent_r
therefore we should not mangle with it.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-27 17:39:19 +02:00
Roman Bolshakov
0041eda1e4 util: eventpoll: Survive EBADF on macOS
Fixes:
https://www.redhat.com/archives/libvir-list/2017-January/msg00978.html

QEMU is probed through monitor fd to check capabilities during libvirtd init.
The monitor fd is closed after probing by virQEMUCapsInitQMPCommandFree
that calls virQEMUCapsInitQMPCommandAbort that calls qemuMonitorClose,
the latter one notifies the event loop via an interrupt handle in
qemuMonitorUnregister and after then closes monitor fd.

There could be a case when interrupt is sent after eventLoop is unlocked
but before virEventPollRunOnce blocks in poll, shortly before file
descriptor is closed by qemuMonitorClose. Then poll receives closed monitor
fd in fdset and returns EBADF.

EBADF is not mentioned as a valid errno on macOS poll man-page but such
behaviour can appear release-to-release, according to cpython:
https://github.com/python/cpython/blob/master/Modules/selectmodule.c#L1161

The change also fixes the issue in qemucapabilitiestest. It returns
Bad file descriptor message 25 times without the fix.

Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2018-08-27 10:38:26 +02:00
Lubomir Rintel
2faf932266 util: add RISC-V architectures
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2018-08-24 13:23:36 +02:00
Christian Ehrhardt
9a4e4b942d
process: wait longer 5->30s on hard shutdown
In cases where virProcessKillPainfully already reailizes that
SIGTERM wasn't enough we are partially on a bad path already.
Maybe the system is overloaded or having serious trouble to free and
reap resources in time.

In those case give the SIGKILL that was sent after 10 seconds some more
time to take effect if force was set (only then we are falling back to
SIGKILL anyway).

Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-08-21 17:37:10 +02:00
Christian Ehrhardt
be2ca04447
process: wait longer on kill per assigned Hostdev
It was found that in cases with host devices virProcessKillPainfully
might be able to send signal zero to the target PID for quite a while
with the process already being gone from /proc/<PID>.

That is due to cleanup and reset of devices which might include a
secondary bus reset that on top of the actions taken has a 1s delay
to let the bus settle. Due to that guests with plenty of Host devices
could easily exceed the default timeouts.

To solve that, this adds an extra delay of 2s per hostdev that is associated
to a VM.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
2018-08-21 17:37:10 +02:00
Peter Krempa
6bbc5c3035 util: virqemu: Simplify debugging if building QOM object with missing args
Print the values so it's simpler to debug.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-08-21 15:46:06 +02:00
John Ferlan
39f0f3ae65 util: Alter virAuthGet*Path API to generate auth->cb error
Rather than forcing the caller to generate an error, let's
generate the Username or Password error message failure if
the auth->cb fails. This is the last error path that needs
a specific message for various callers.

Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
2018-08-15 15:42:08 -04:00
John Ferlan
5f0a9c45b3 util: Alter virAuthGet*Path API return processing
If we never find the valid credtype in the list, then we'd return
NULL without an error signaled forcing the caller to generate one
that will probably be incorrect. Let's be specific.

Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
2018-08-15 15:42:03 -04:00
John Ferlan
efd8261541 util: Remove invalid parameter checks from virAuthGet{Username|Password}
Now that the virAuthGet*Path helpers make the checks, we can remove
them from here.

Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
2018-08-15 15:41:55 -04:00
John Ferlan
3dc6b00f0d util: Alter virAuthGet*Path API to check valid callback
Before trying to call @auth->cb, let's ensure it exists.

Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
2018-08-15 15:41:49 -04:00
John Ferlan
f707935abf util: Alter virAuthGet*Path API to check valid parameters
Before trying to dereference @auth, let's ensure it's valid.

Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
2018-08-15 15:41:34 -04:00
Marcos Paulo de Souza
69f4e093d0 virauth.c: Check for valid auth callback
Instead of adding the same check for every drivers, execute the checks
in virAuthGetUsername and virAuthGetPassword. These funtions are called
when user is not set in the URI.

Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
2018-08-14 16:03:04 +02:00
xinhua.Cao
b0c3e93180 libvirt_iohelper: record the libvirt_iohelper's error message at virFileWrapperFdFree
Currently iohelper's error log is recorded in virFileWrapperFdClose.
However, if something goes wrong the caller might not even get to
calling virFileWrapperFdClose and call virFileWrapperFdFree
directly. Therefore the error reporting should happen there.

Signed-off-by: xinhua.Cao <caoxinhua@huawei.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2018-08-14 16:00:25 +02:00
Andrea Bolognani
ba35ac2ebb utils: Remove arbitrary limit on socket_id/core_id
While in most cases the values are going to be much
smaller than our arbitrary 4096 limit, there is really
no guarantee that would be the case: in fact, a few
aarch64 servers have been spotted in the wild with
core_id as high as 6216.

Take advantage of virBitmap's ability to automatically
alter its size at runtime to accomodate such values.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2018-08-14 15:52:34 +02:00
Andrea Bolognani
794513e89d util: Rewrite virHostCPUCountThreadSiblings()
We already have a function which parses
thread_siblings_list for a CPU and returns the
corresponding bitmap, and a bunch of utility functions
that perform operations on bitmaps such as counting
the number of set bits: use those to implement the
function instead of having an additional ad-hoc parser
for thread_siblings.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2018-08-14 15:52:32 +02:00
Andrea Bolognani
95431c963e util: Drop VIR_HOST_CPU_MASK_LEN
Unused since commit c67e04e25f.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2018-08-14 15:52:25 +02:00
Erik Skultety
ff7bd6a245 Fix build on non-linux platforms after another VIR_AUTOPTR patches
Caused by commit f7d0663d49. The problem is missing libnl library on
these platforms, so the VIR_DEFINE_AUTOPTR_FUNC has to be compiled in
conditionally.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2018-08-14 13:02:24 +02:00
Bing Niu
7995fecc25 conf: Add memory bandwidth allocation capability of host
Add new XML section to report host's memory bandwidth allocation
capability. The format as below example:

 <host>
 .....
   <memory_bandwidth>
     <node id='0' cpus='0-19'>
       <control granularity='10' min ='10' maxAllocs='8'/>
     </node>
   </memory_bandwidth>
</host>

granularity   ---- granularity of memory bandwidth, unit percentage.
min           ---- minimum memory bandwidth allowed, unit percentage.
maxAllocs     ---- maximum memory bandwidth allocation group supported.

Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-08-13 14:19:41 -04:00
Bing Niu
5b66c6cc85 util: Introduce virResctrlAllocSetMemoryBandwidth
Introduce an API to allow setting of the MBA from domain XML.

Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-08-13 14:19:41 -04:00
Bing Niu
10e699dac9 util: Introduce virResctrlAllocForeachMemory
Introduce an API that will traverse the memory bandwidth data calling
a callback function for each defined bandwidth entry.

Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-08-13 14:19:41 -04:00
Bing Niu
f977ad89e0 util: Add support to calculate MBA utilization
Introduce virResctrlMemoryBandwidthSubtract and
virResctrlAllocMemoryBandwidth to be used as part of
the virResctrlAllocAssign processing to configure
the available memory bandwidth.

Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-08-13 14:19:41 -04:00
Bing Niu
34a2ba2c46 util: Add MBA schemata parse and format methods
Introduce virResctrlAllocMemoryBandwidthFormat and
virResctrlAllocParseMemoryBandwidthLine which will format
and parse an entry in the schemata file for MBA.

Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-08-13 14:19:41 -04:00
Bing Niu
4c727dacbf util: Add MBA allocation to virresctrl
Add memory bandwidth allocation support to virresctrl class.
Introducing virResctrlAllocMemBW which is used for allocating memory
bandwidth. Following virResctrlAllocPerType, it also employs a
nested sparse array to indicate whether allocation is available for
particular last level cache.

Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-08-13 14:19:41 -04:00
Bing Niu
5aae2b3968 util: Add MBA check to virResctrlInfoGetCache
If we have some membw_info data, then we need to calculate the number
of MBA controllers on the system. The value cannot be obtained from a
direct query to the RDT kernel module, but it is the same as the last
level cache value which is calculated by traversing the cache hierarchy
of host(/sys/bus/cpu/devices/cpuX/cache/).

Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-08-13 14:19:41 -04:00
Bing Niu
a24da791b8 util: Add MBA capability information query to resctrl
Introducing virResctrlInfoMemBW for the information memory bandwidth
allocation information.

Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-08-13 14:19:41 -04:00
Bing Niu
65bae2f18c util: Refactor virResctrlAllocFormat of virresctrl
Refactor virResctrlAllocFormat so that it is easy to support other
resource allocation technologies.

Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-08-13 14:19:41 -04:00
Bing Niu
3a1356d461 util: Refactor virResctrlGetInfo in virresctrl
Separate resctrl common information parts from CAT specific parts,
so that common information parts can be reused among different
resource allocation technologies.

Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-08-13 14:19:41 -04:00
Bing Niu
f7c7f8ea65 util: Rename some functions of virresctrl
Some functions in virresctrl are for CAT only, while some of other
functions are for resource allocation, not just CAT. So change
their names to reflect the reality.

Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-08-13 14:19:41 -04:00
Sukrit Bhatnagar
1077b46de6 util: netdevopenvswitch: use VIR_AUTOPTR for aggregate types
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.

Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-08-13 20:03:59 +02:00
Sukrit Bhatnagar
85e04482a8 util: netdevip: use VIR_AUTOPTR for aggregate types
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.

Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-08-13 20:03:59 +02:00
Sukrit Bhatnagar
5266bb9165 util: netdevbridge: use VIR_AUTOPTR for aggregate types
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.

Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-08-13 20:03:58 +02:00
Sukrit Bhatnagar
3a90015238 util: netdevbridge: use VIR_AUTOFREE instead of VIR_FREE for scalar types
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.

Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-08-13 20:03:57 +02:00
Sukrit Bhatnagar
5392743c10 util: netlink: use VIR_AUTOPTR for aggregate types
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.

Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-08-13 20:03:56 +02:00
Sukrit Bhatnagar
b16e623b27 util: netlink: use VIR_AUTOFREE instead of VIR_FREE for scalar types
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.

Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-08-13 20:03:55 +02:00
Sukrit Bhatnagar
f7d0663d49 util: netlink: define cleanup function using VIR_DEFINE_AUTOPTR_FUNC
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.

This commit also typedefs virNetlinkMsg to struct nl_msg type for use
with the cleanup macros.

When a variable of type virNetlinkMsg * is declared using VIR_AUTOPTR,
the function nlmsg_free will be run automatically on it when it
goes out of scope.

Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-08-13 20:03:53 +02:00
Sukrit Bhatnagar
cbc1326b21 util: iscsi: use VIR_AUTOFREE instead of VIR_FREE for scalar types
Add another usage for VIR_AUTOFREE macro which was left in the
commit ec3e878, thereby dropping a VIR_FREE call and and a cleanup
section.

Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-08-13 20:03:51 +02:00
Pavel Hrdina
baebd9f3d8 vircgroup: fix MinGW build
Broken by commit <901d2b9c87>.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-13 16:14:23 +02:00
Ján Tomko
d99a89592d Revert "Switch from yajl to Jansson"
This reverts commit 9cf38263d0.

Jansson cannot parse QEMU's quirky JSON.
Revert back to yajl.

https://bugzilla.redhat.com/show_bug.cgi?id=1614569

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-08-13 15:50:01 +02:00
Ján Tomko
e96e71d8d0 Revert "Remove functions using yajl"
This reverts commit bf114decb3.

Jansson cannot parse QEMU's quirky JSON.
Revert back to yajl.

https://bugzilla.redhat.com/show_bug.cgi?id=1614569

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-08-13 15:50:01 +02:00
Ján Tomko
63f6e0e950 Revert "Remove virJSONValueNewStringLen"
This reverts commit 8f802c6d86.

Jansson cannot parse QEMU's quirky JSON.
Revert back to yajl.

https://bugzilla.redhat.com/show_bug.cgi?id=1614569

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-08-13 15:50:01 +02:00
Ján Tomko
6c3d66ac74 Revert "util: avoid symbol clash between json libraries"
This reverts commit ce3c6ef684.

Jansson cannot parse QEMU's quirky JSON.
Revert back to yajl.

https://bugzilla.redhat.com/show_bug.cgi?id=1614569

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-08-13 15:50:00 +02:00
Ján Tomko
54f2b5e330 Revert "util: jsoncompat: Stub out virJSONInitialize when compiling without jansson"
This reverts commit 9e44c2db8a.

Jansson cannot parse QEMU's quirky JSON.
Revert back to yajl.

https://bugzilla.redhat.com/show_bug.cgi?id=1614569

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-08-13 15:50:00 +02:00
Ján Tomko
9c3dad5677 Revert "src: Move DLOPEN_LIBS to libraries introducing the dependency"
This reverts commit 5d40272ea6.

Jansson cannot parse QEMU's quirky JSON.
Revert back to yajl.

https://bugzilla.redhat.com/show_bug.cgi?id=1614569

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-08-13 15:50:00 +02:00
Michal Privoznik
e101960761 virnetdevip: Free data.devices in virNetDevIPCheckIPv6Forwarding() too
We are freeing the individual strings (which were filled by
virNetDevIPCheckIPv6ForwardingCallback()) but not the array
itself.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-08-13 12:32:02 +02:00
Pavel Hrdina
901d2b9c87 vircgroup: Introduce virCgroupGetMemoryStat
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-13 11:53:53 +02:00
Pavel Hrdina
db868852fd vircgroup: Remove virCgroupAddTaskController
There is no need for this function, both of the checks are done
later by virCgroupGetControllerPath.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-13 11:53:53 +02:00
Pavel Hrdina
f9d18f89f7 vircgroup: machinename will never be NULL
Commit <eaf2c9f89107b9f60cf8db2c919f78b987ff7177> moved machineName
generation before virCgroupNewDetectMachine() is called.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-13 11:53:53 +02:00
Pavel Hrdina
fc221c053b vircgroup: Introduce virCgroupEnableMissingControllers
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-13 11:53:53 +02:00
Pavel Hrdina
801d95d259 vircgroup: Use virCgroupMountOptsMatchController in virCgroupDetectPlacement
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-13 11:53:53 +02:00
Pavel Hrdina
6d5b91f0f5 vircgroup: Extract mount options matching into function
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-13 11:53:53 +02:00
Pavel Hrdina
0490a74aa1 vircgroup: Remove pointless bool parameter
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-13 11:53:53 +02:00
Pavel Hrdina
8ea2d5a6cb vircgroup: Move function used in tests into vircgrouppriv.h
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-13 11:53:53 +02:00