Peter Krempa [Thu, 18 Apr 2019 14:16:57 +0000 (16:16 +0200)]
qemu: Mark when modifying access to existing source in qemuDomainStorageSourceAccessModify
Some operations e.g. namespace setup are not necessary when modifying
access to a file which the VM can already access. Add a flag which
allows to skip them.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Thu, 18 Apr 2019 14:10:52 +0000 (16:10 +0200)]
qemu: Allow skipping the revoke step in qemuDomainStorageSourceAccessModify
In some cases when we need to modify access permissions for a storage
source which is already used by the VM we should not revoke all
permissions on a failure. Allow this in qemuDomainStorageSourceAccessModify
by adding a new flag.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Thu, 18 Apr 2019 14:06:19 +0000 (16:06 +0200)]
qemu: Use bools rather than labels in qemuDomainStorageSourceAccessModify
Rather than jumping to the correct label use a set of booleans to
determine which operation needs to be rolled back. This will allow more
flexibility when e.g. rollback after a failed operation will not be
necessary/desired.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Thu, 18 Apr 2019 08:18:51 +0000 (10:18 +0200)]
qemu: Split entry points to qemuDomainStorageSourceChainAccessPrepare
Introduce qemuDomainStorageSourceChainAccess(Allow|Revoke) as entry
points to qemuDomainStorageSourceChainAccessPrepare for symmetry with
the functions for single backing chain elements.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
GitLab CI provides some shared build runners that use Docker containers.
This resource can usefully run cross-compiled builds since all other CI
build testing is currently x86 only, and Travis CI is already very busy
testing native builds.
Reviewed-by: Andrea Bolognani <abologna@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Previously, init_syms() was called from stat() mock and its
friends. This is crucial because checkPath() might call
printFile() which in turn calls real_fopen(). But if stat() or
one of its friends is the first function called then because of
lacking init_syms() call no real_* is initialized.
The other thing is that we really want the recorded action to be
"stat" instead of __FUNCTION__ because there's no good in
recording that it was __xstat64 who touched some file.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
virfilemock: Init symbols in canonicalize_file_name()
If a program that is using this mock calls canonicalize_file_name()
as the very first function then it will face SIGSEGV because
real_canonicalize_file_name is uninitialized.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Eric Blake [Thu, 4 Apr 2019 20:32:05 +0000 (15:32 -0500)]
conf: Add parameter to virDomainDiskSourceFormat
Commits 4bc42986 and 218c81ea removed virDomainStorageSourceFormat on
the grounds that there were no external callers; however, the upcoming
backup code wants to output a <target> (push mode) or <scratch> (pull
mode) element that is in all other respects identical to a domain's
<source> element, where the previous virDomainStorageSourceFormat fit
the bill nicely. But rather than reverting the commits, it's easier to
just add an additional parameter for the element name to use, and
update all callers.
In addition adjusting iothreads-virtio-scsi-ccw.s390x-latest.args to prevent
accidential drive id exposure by QEMU fixed by commit a1dce96236f
(qemu: Use the 'device_id' property of SCSI disks to avoid regressing),
and also adjusting *s390x-latest.args files to qemu deprecation changes made
in commit e8c2c8bd078 (Prefer '-overcommit mem-lock' over -realtime mlock').
Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com> Reviewed-by: Andrea Bolognani <abologna@redhat.com>
John Ferlan [Tue, 30 Apr 2019 19:29:26 +0000 (15:29 -0400)]
docs: Update drivers page to link to storage.html
Rather than duplicate a list of storage pool backends on the
drivers.html page, let's just link directly to the storage driver
page similar to how the node device driver is done.
Signed-off-by: John Ferlan <jferlan@redhat.com> Reviewed-by: Erik Skultety <eskultet@redhat.com>
Peter Krempa [Mon, 29 Apr 2019 12:22:32 +0000 (14:22 +0200)]
tests: qemucaps: Bump capability test data for qemu-4.0 release on x86_64
Capture and update the 4.0.0 qemu version replies now that it was
released. I opted to keep the CPU differences as there was a qemu bug
which reported an empty string in CPU caps.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Peter Krempa [Wed, 10 Apr 2019 12:22:14 +0000 (14:22 +0200)]
qemu: qapi: Use declarative approach for meta-type parsers in virQEMUQAPISchemaTraverse
Introduce an array of callbacks for given 'meta-type' of the QAPI schema
structure rather than using code to select it. This will simplify
extension for the other meta-types which are not handled yet.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Fri, 12 Apr 2019 07:19:39 +0000 (09:19 +0200)]
qemu: qapi: Optimize out some helper functions
virQEMUQAPISchemaTypeFromObject and virQEMUQAPISchemaTypeFromObject
can be very easily folded into virQEMUQAPISchemaTraverseObject removing
the need for the helpers.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Tue, 9 Apr 2019 12:09:33 +0000 (14:09 +0200)]
qemu: qapi: Modify values returned by virQEMUQAPISchemaPathGet
Return 1 if the schema entry was found optionally returning it rather
than depending on the returned object.
Some callers don't care which schema object belongs to the query, but
rather only want to know whether it exists. Additionally this will allow
introducing boolean queries for checking if enum values exist.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Thu, 11 Apr 2019 07:10:39 +0000 (09:10 +0200)]
qemu: qapi: Fix return value of impossible case in virQEMUQAPISchemaTraverse
The return statement after the infinite loop without a break is there to
appease the compiler. Make it return NULL as it would be a failure if
control flow reaches that point.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Tue, 9 Apr 2019 11:22:32 +0000 (13:22 +0200)]
tests: qemumonitorjson: Add tests for QAPI schema query
While we technically test the query strings in the qemucapabilitiestest
this was done to help refactor and extend the QAPI schema query
infrastructure.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Michal Privoznik [Thu, 18 Apr 2019 12:03:10 +0000 (14:03 +0200)]
virBuffer: Try harder to free buffer
Currently, the way virBufferFreeAndReset() works is it relies on
virBufferContentAndReset() to fetch the buffer content which is
then freed. This works as long as there is no bug in virBuffer*
implementation (not true apparently). Explicitly call free() over
buffer content.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Erik Skultety <eskultet@redhat.com>
virhostdevtest is using pci mock to emulate all PCI attach/detach
operations. This means that that this test does not rely on KVM
support of the host anymore and the tests in this file shouldn't
be affected by it.
Suggested-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Michal Privoznik [Thu, 18 Apr 2019 12:02:08 +0000 (14:02 +0200)]
virbuffer: Use signed integer for storing error
The @error member can contain a positive value (errno) or a
negative value (-1) to denote a usage error. It doesn't make
much sense to store it as unsigned then.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Erik Skultety <eskultet@redhat.com>
Michal Privoznik [Thu, 18 Apr 2019 11:59:15 +0000 (13:59 +0200)]
virbuffer: Don't leak memory in virBufferAddBuffer
If an error occurs in a virBuffer* API the idea is to free the
content immediately and set @error member used in error reporting
later. Well, this is not what how virBufferAddBuffer works.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Erik Skultety <eskultet@redhat.com> Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Michal Privoznik [Tue, 16 Apr 2019 15:30:13 +0000 (17:30 +0200)]
qemu.conf: Make nvram list obsolete
Now that libvirt has firmware auto selection feature the nvram
config knob is more or less obsolete. It still makes sense in
cases where distro users are using does not provide FW descriptor
files, therefore I'm not removing it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Match the XML feature usage of the qemu driver, so the test driver
doesn't reject things like <os firmware='efi'/>.
Particularly VIR_DOMAIN_DEF_FEATURE_NET_MODEL_STRING is needed to
prevent regressions for test suite users with net model strings that
aren't in the virDomainNetModel enum yet
Reviewed-by: Andrea Bolognani <abologna@redhat.com> Signed-off-by: Cole Robinson <crobinso@redhat.com>
Commit 3b71f2e42d added spec handling for with_firewalld_zone. We
now call %firewalld_reload if with_firewalld is set. But the matching
'BuildRequires: firewalld-filesystem' is only applied if
with_firewalld_zone is set.
Michal Privoznik [Tue, 30 Apr 2019 14:17:14 +0000 (16:17 +0200)]
lib: Preserve error around virDomainNetReleaseActualDevice()
This function is calling public API virNetworkLookupByName()
which resets the error. Therefore, if
virDomainNetReleaseActualDevice() is used in cleanup path it
actually resets the original error that got us jump into
'cleanup' label.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Julio Faracco [Tue, 30 Apr 2019 00:29:54 +0000 (21:29 -0300)]
util: Fix uninitalized variable to avoid garbage value.
This commit is similar with 692400f4. It fixes an uninitialized
variable to avoid garbage value. This case, returns 0 jiffies if an
error occurs with virNetDevBridgeGet.
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
firmware attribute from <os/> takes either 'efi' or 'bios' as its
allowed values. However, the current documentation mistakenly mentions
'uefi' instead of 'efi'.
If we're attaching a device to both inactive and live XML then
@ret is overwritten which may result in incorrect return value.
For instance, if attaching to inactive XML succeeds, @ret is
assigned value of zero and control proceeds to attaching the
device to live XML. Here, if say
virDomainDeviceValidateAliasForHotplug() fails the control jumps
over to 'cleanup' label and zero is returned indicating success.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Fri, 26 Apr 2019 13:14:17 +0000 (15:14 +0200)]
src: Check for virDomainDiskInsert() retval properly
Our coding style specifies that only negative values are considered as
error. Check for return value of virDomainDiskInsert() properly,
following the style. Not that the function can now return anything other
than 0 or -1, but it just triggers my OCD.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Tue, 16 Apr 2019 13:11:40 +0000 (15:11 +0200)]
util: hash: Append to hash buckets when adding new entries
In cases when the hash function for a name collides with other entry
already in the hash we prepend to the bucket. This creates a 'stack
effect' on the buckets if we then iterate through the hash. Normally
this is not a problem, but in tests we want deterministic results.
Since it does not matter where we add the entry and it's usually more
probable that a different entry will be accessed next change it to
append to the end of the bucket. Luckily we already iterate throught the
bucket once thus we can easily find the last entry and just connect the
new entry after it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
qemuDomainPMSuspendForDuration: check for wake-up support
If the current QEMU guest can't wake up from suspend properly,
and we are able to determine that, avoid suspending the guest
at all. To be able to determine this support, QEMU needs to
implement the 'query-current-machine' QMP call. This is reflected
by the QEMU_CAPS_QUERY_CURRENT_MACHINE cap.
If the cap is enabled, a new function qemuDomainProbeQMPCurrentMachine
is called. This is wrapper for qemuMonitorGetCurrentMachineInfo,
where the 'wakeup-suspend-support' flag is retrieved from
'query-current-machine'. If wakeupSuspendSupport is true,
proceed with the regular flow of qemuDomainPMSuspendForDuration.
The absence of QEMU_CAPS_QUERY_CURRENT_MACHINE indicates that
we're dealing with a QEMU version older than 4.0 (which implements
the required QMP API). In this case, proceed as usual with the
suspend logic of qemuDomainPMSuspendForDuration, since we can't
assume whether the guest has support or not.
Fixes: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1759509 Reported-by: Balamuruhan S <bala24@linux.vnet.ibm.com> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
QEMU commit 46ea94ca9cf ("qmp: query-current-machine with
wakeup-suspend-support") added a new QMP command called
'query-current-machine' that retrieves guest parameters that
can vary in the same machine model (e.g. ACPI support for x86 VMs
depends on the '--no-acpi' option). Currently, this API has a single
flag, 'wakeup-suspend-support', that indicates whether the guest has
the capability of waking up from suspended state.
Introduce a libvirt capability that reflects whether qemu has the
monitor command.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Pavel Hrdina [Wed, 24 Apr 2019 13:26:12 +0000 (15:26 +0200)]
vircgroup: no need to ifdef virCgroupFree
virCgroup struct is always defined and the free function is not calling
anything that would require OS supporting cgroups.
This fixes an issue if we try to start a VM with QEMU binary that
doesn't support QXL. The start operation will fail in
qemuProcessStartValidateVideo() which will set correct error message,
but later in one of the cleanup paths we will call
qemuDomainObjPrivateDataClear() which always calls virCgroupFree()
and that will fail on OS that doesn't support cgroups and it will
set a new error which will be eventually reported to user.
Allen, John [Mon, 15 Apr 2019 14:43:07 +0000 (14:43 +0000)]
Handle copying bitmaps to larger data buffers
If a bitmap of a shorter length than the data buffer is passed to
virBitmapToDataBuf, it will read off the end of the bitmap and copy junk
into the returned buffer. Add a check to only copy the length of the
bitmap to the buffer.
The problem can be observed after setting a vcpu affinity using the vcpupin
command on a system with a large number of cores:
# virsh vcpupin example_domain 0 0
# virsh vcpupin example_domain 0
VCPU CPU Affinity
---------------------------
0 0,192,197-198,202
Different check values are not ABI compatible. For example
if on migration we change 'full' to 'partial' then guest cpu
on destination can be different.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com> Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Michal Privoznik [Tue, 23 Apr 2019 14:04:55 +0000 (16:04 +0200)]
networkStartNetworkVirtual: Don't overwrite error in 'err5'
If there's an error when setting up QoS on a bridge the control
jumps over to 'err5' label. Here, the virNetDevBandwidthClear()
is called to clear out any partially set QoS. This function can
also report an error which would overwrite the actual error that
caused us jumping here. Use virErrorPreserveLast() to preserve
the original error.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Sat, 20 Apr 2019 05:01:04 +0000 (07:01 +0200)]
vmx: Free @firmware in virVMXParseConfig
The @firmware string is allocated, but never freed.
4 bytes in 1 blocks are definitely lost in loss record 1 of 44
at 0x483579F: malloc (vg_replace_malloc.c:299)
by 0x76FB469: strdup (strdup.c:42)
by 0x497B6DE: virStrdup (virstring.c:966)
by 0x48F6FD3: virConfGetValueString (virconf.c:908)
by 0x4B3E9B6: virVMXGetConfigStringHelper (vmx.c:736)
by 0x4B3EA6B: virVMXGetConfigString (vmx.c:756)
by 0x4B41AEA: virVMXParseConfig (vmx.c:1832)
by 0x10B8E4: testCompareFiles (vmx2xmltest.c:79)
by 0x10BAB8: testCompareHelper (vmx2xmltest.c:124)
by 0x10D058: virTestRun (testutils.c:174)
by 0x10CDDA: mymain (vmx2xmltest.c:288)
by 0x10F11C: virTestMain (testutils.c:1096)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Pino Toscano <ptoscano@redhat.com>
Michal Privoznik [Sat, 20 Apr 2019 05:00:49 +0000 (07:00 +0200)]
libxlDriverConfigDispose: Free @configBaseDir too
Allocated in libxlDriverConfigNew(), the @configBaseDir is never
freed.
13 bytes in 1 blocks are definitely lost in loss record 36 of 125
at 0x483579F: malloc (vg_replace_malloc.c:299)
by 0x8012469: strdup (strdup.c:42)
by 0x52926DE: virStrdup (virstring.c:966)
by 0x11D46B: libxlDriverConfigNew (libxl_conf.c:1749)
by 0x114D78: testCompareXMLToDomConfig (libxlxml2domconfigtest.c:62)
by 0x1152A3: testCompareXMLToDomConfigHelper (libxlxml2domconfigtest.c:160)
by 0x115925: virTestRun (testutils.c:174)
by 0x1154A4: mymain (libxlxml2domconfigtest.c:216)
by 0x1179E9: virTestMain (testutils.c:1096)
by 0x1154FD: main (libxlxml2domconfigtest.c:224)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Sat, 20 Apr 2019 05:00:14 +0000 (07:00 +0200)]
qemucaps2xmltest: Don't leak @binary
There's no need to keep @binary around.
virQEMUCapsInitGuestFromBinary() duplicates the string anyway.
1,002 bytes in 36 blocks are definitely lost in loss record 54 of 59
at 0x483579F: malloc (vg_replace_malloc.c:299)
by 0x796B1C7: vasprintf (vasprintf.c:73)
by 0x4C3F2C6: virVasprintfInternal (virstring.c:740)
by 0x4C3F3DC: virAsprintfInternal (virstring.c:761)
by 0x13AFC9: testGetCaps (qemucaps2xmltest.c:105)
by 0x13B200: testQemuCapsXML (qemucaps2xmltest.c:157)
by 0x13B642: virTestRun (testutils.c:174)
by 0x13B366: doCapsTest (qemucaps2xmltest.c:191)
by 0x13FF2B: testQemuCapsIterate (testutilsqemu.c:941)
by 0x13B427: mymain (qemucaps2xmltest.c:215)
by 0x13D706: virTestMain (testutils.c:1096)
by 0x13B489: main (qemucaps2xmltest.c:221)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Wed, 10 Apr 2019 15:14:25 +0000 (17:14 +0200)]
qemu: Set up EMULATOR thread and cpuset.mems before exec()-ing qemu
It's funny how this went unnoticed for such a long time. Long
story short, if a domain is configured with
VIR_DOMAIN_NUMATUNE_MEM_STRICT libvirt doesn't really honour
that. This is because of 7e72ac787848 after which libvirt allowed
qemu to allocate memory just anywhere and only after that it used
some magic involving cpuset.memory_migrate and cpuset.mems to
move the memory to desired NUMA nodes. This was done in order to
work around some KVM bug where KVM would fail if there wasn't a
DMA zone available on the NUMA node. Well, while the work around
might stopped libvirt tickling the KVM bug it also caused a bug
on libvirt side: if there is not enough memory on configured NUMA
node(s) then any attempt to start a domain must fail. Because of
the way we play with guest memory domains can start just happily.
The solution is to move the child we've just forked into emulator
cgroup, set up cpuset.mems and exec() qemu only after that.
This basically reverts 7e72ac787848b7434c9 which was a workaround
for kernel bug. This bug was apparently fixed because I've tested
this successfully with recent kernel.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Turns out, this caused a regression. There is this (perhaps less
known) semantic of virDomainAttachDevice() where if the device
the API is trying to attach is a CDROM/floppy that is already in
the domain the attach request is handled as 'change the media in
the drive'.
We have a better fix anyways.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com> Reviewed-by: Jim Fehlig <jfehlig@suse.com>
Michal Privoznik [Thu, 11 Apr 2019 13:45:27 +0000 (15:45 +0200)]
qemu_hotplug: Check for duplicate drive addresses
This tries to fix the same problem as f1d65853000 but it's doing
so in a less invasive way.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com> Reviewed-by: Jim Fehlig <jfehlig@suse.com>
Michal Privoznik [Thu, 11 Apr 2019 14:23:38 +0000 (16:23 +0200)]
qemuhotplugtest: Don't plug a SCSI disk at unit 7
Unit number 7 is kind of special. It's reserved for SCSI
controller. The comment in virDomainSCSIDriveAddressIsUsed()
summarizes that pretty nicely. Libvirt would never generate
such address.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com> Reviewed-by: Jim Fehlig <jfehlig@suse.com>
Michal Privoznik [Thu, 11 Apr 2019 13:44:14 +0000 (15:44 +0200)]
conf: Expose virDomainSCSIDriveAddressIsUsed
This function checks if given drive address is already present in
passed domain definition. Expose the function as it will be used
shortly.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com> Reviewed-by: Jim Fehlig <jfehlig@suse.com>
network: move re-attach of bridge device out of network driver
During initial NIC setup the hypervisor drivers are responsible for
attaching the TAP device to the bridge device. Any fixup after libvirtd
restarts should thus also be their responsibility.
Reviewed-by: Laine Stump <laine@laine.org> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
virt drivers: don't handle type=network after resolving actual network type
The call to resolve the actual network type will turn any NICs with
type=network into one of the other types. Thus there should be no need
to handle type=network in later switch() statements jumping off the
actual type.
Reviewed-by: Cole Robinson <crobinso@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
network: use 'bridge' as actual type instead of 'network'
Ports allocated on virtual networks with type=nat|route|open all get
given an actual type of 'network'.
Only ports in networks with type=bridge use an actual type of 'bridge'.
This distinction makes little sense since the virtualization drivers
will treat both actual types in exactly the same way, as they're all
just bridge devices a VM needs to be connected to.
This doesn't affect user visible XML since the "actual" device XML
is internal only, but we need code to convert the data upgrades.
Reviewed-by: Laine Stump <laine@laine.org> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
conf: don't pass interface type into virNetDevBandwidthParse
The virNetDevBandwidthParse method uses the interface type to decide
whether to allow use of the "floor" parameter. Using the interface
type is not convenient as callers may not have that available, but
still wish to allow use of "floor". Switch to an explicit boolean
to control its usage.
Reviewed-by: Laine Stump <laine@laine.org> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
network: explain reason for bandwidth floor rejection
Reword error messages to make it clear that the combined floor settings
of all NICs are exceeding the network inbound peak/average
settings. Including the actual values being checked helps to diagnose
what is actually wrong.
Reviewed-by: Laine Stump <laine@laine.org> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
network: ensure floor sum is reset to zero when starting networks
In extreme cases libvirt can get mixed up about what VMs are running and
attached to a network leading to the cached floor sum value being
outdated. When this happens the only option is to destroy the network
and then restart libvirtd. If we set floor sum back to zero when
starting the network, we avoid the need for a libvirtd restart at least.
Reviewed-by: Laine Stump <laine@laine.org> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
network: stop passing virDomainNetDefPtr into bandwidth functions
The networkPlugBandwidth & networkUnplugBandwidth methods currently take
a virDomainNetDefPtr. To remove the dependency on the domain config
struct, pass individual parameters instead.
Reviewed-by: Laine Stump <laine@laine.org> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
projects / libvirt.git / log