When looking up a net device by a MAC and PCI address, it is possible
that we've got a match on the MAC address but failed to match the
PCI address.
In that case, outputting just the MAC address can be confusing.
Partially resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=872028
Every caller checked the return value and logged an error
- one if no device with the specified MAC was found,
other if there were multiple devices matching the MAC address
(except for qemuDomainUpdateDeviceConfig which logged the same
message in both cases).
Move the error reporting into virDomainNetFindIdx, since in both cases,
we couldn't find one single match - it's just the error messages that
differ.
Now that we have a dedicated type for representing a disk source,
we might as well parse and format directly into that type instead
of piecemeal into pointers to members of the type.
* src/conf/domain_conf.h (virDomainDiskSourceDefFormatInternal)
(virDomainDiskSourceDefParse): Rename...
(virDomainDiskSourceFormat, virDomainDiskSourceParse): ...and
compress signatures.
* src/conf/domain_conf.c (virDomainDiskSourceParse)
(virDomainDiskSourceFormat): Rewrite to use common struct.
(virDomainDiskSourceDefFormat): Delete.
(virDomainDiskDefParseXML, virDomainDiskDefFormat): Update
callers.
* src/conf/snapshot_conf.c (virDomainSnapshotDiskDefParseXML)
(virDomainSnapshotDiskDefFormat): Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Move some functions out of domain_conf for use in the next
patch where snapshot starts to directly use structs in
virstoragefile.
* src/conf/domain_conf.c (virDomainDiskDefFree)
(virDomainDiskSourcePoolDefParse): Adjust callers.
(virDomainDiskSourceDefClear, virDomainDiskSourcePoolDefFree)
(virDomainDiskAuthClear): Move...
* src/util/virstoragefile.c (virStorageSourceClear)
(virStorageSourcePoolDefFree, virStorageSourceAuthClear): ...and
rename.
* src/conf/domain_conf.h (virDomainDiskAuthClear): Drop
declaration.
* src/qemu/qemu_conf.c (qemuTranslateDiskSourcePool): Adjust
caller.
* src/util/virstoragefile.h: Declare them.
* src/libvirt_private.syms (virstoragefile.h): Export them.
Signed-off-by: Eric Blake <eblake@redhat.com>
With this patch, all information related to a host resource in
a storage file backing chain now lives in util/virstoragefile.h.
The next step will be to consolidate various places that have
been tracking backing chain details to all use a common struct.
The changes to tools/Makefile.am were made necessary by the
fact that virstorageencryption includes uses of libxml, and is
now pulled in by inclusion from virstoragefile.h. No
additional libraries are linked into the final image, and in
comparison, the build of the setuid library in src/Makefile.am
already was using LIBXML_CFLAGS via AM_CFLAGS.
* src/conf/domain_conf.h (virDomainDiskSourceDef): Move...
* src/util/virstoragefile.h (virStorageSource): ...and rename.
* src/conf/domain_conf.c (virDomainDiskSourceDefClear)
(virDomainDiskAuthClear): Adjust clients.
* tools/Makefile.am (virt_login_shell_CFLAGS)
(virt_host_validate_CFLAGS): Add libxml headers.
Signed-off-by: Eric Blake <eblake@redhat.com>
This one is a relatively easy move. We don't ever convert the
enum to or from strings (it is inferred from other elements in
the xml, rather than directly represented).
* src/conf/domain_conf.h (virDomainDiskSecretType): Move...
* src/util/virstoragefile.h (virStorageSecreteType): ...and
rename.
* src/conf/domain_conf.c (virDomainDiskSecretType): Drop unused
enum conversion.
(virDomainDiskAuthClear, virDomainDiskDefParseXML)
(virDomainDiskDefFormat): Adjust clients.
* src/qemu/qemu_command.c (qemuGetSecretString): Likewise.
* src/qemu/qemu_conf.c (qemuTranslateDiskSourcePoolAuth):
Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Another struct being moved to util. This one doesn't have as
much use yet, thankfully.
* src/conf/domain_conf.h (virDomainDiskSourcePoolMode)
(virDomainDiskSourcePoolDef): Move...
* src/util/virstoragefile.h (virStorageSourcePoolMode)
(virStorageSourcePoolDef): ...and rename.
* src/conf/domain_conf.c (virDomainDiskSourcePoolDefFree)
(virDomainDiskSourceDefClear, virDomainDiskSourcePoolDefParse)
(virDomainDiskDefParseXML, virDomainDiskSourceDefParse)
(virDomainDiskSourceDefFormatInternal)
(virDomainDiskDefForeachPath, virDomainDiskSourceIsBlockType):
Adjust clients.
* src/qemu/qemu_conf.c (qemuTranslateDiskSourcePool): Likewise.
* src/libvirt_private.syms (domain_conf.h): Move symbols...
(virstoragefile.h): ...as appropriate.
Signed-off-by: Eric Blake <eblake@redhat.com>
In order to reuse the newly-created host-side disk struct in
the virstoragefile backing chain code, I first have to move
it to util/. This starts the process, by first moving the
security label structures.
* src/conf/domain_conf.h (virDomainDefGenSecurityLabelDef)
(virDomainDiskDefGenSecurityLabelDef, virSecurityLabelDefFree)
(virSecurityDeviceLabelDefFree, virSecurityLabelDef)
(virSecurityDeviceLabelDef): Move...
* src/util/virseclabel.h: ...to new file.
(virSecurityLabelDefNew, virSecurityDeviceLabelDefNew): Rename the
GenSecurity functions.
* src/qemu/qemu_process.c (qemuProcessAttach): Adjust callers.
* src/security/security_manager.c (virSecurityManagerGenLabel):
Likewise.
* src/security/security_selinux.c
(virSecuritySELinuxSetSecurityFileLabel): Likewise.
* src/util/virseclabel.c: New file.
* src/conf/domain_conf.c: Move security code, and fix fallout.
* src/Makefile.am (UTIL_SOURCES): Build new file.
* src/libvirt_private.syms (domain_conf.h): Move symbols...
(virseclabel.h): ...to new section.
Signed-off-by: Eric Blake <eblake@redhat.com>
Currently, <cputune><shares>0</shares></cputune> is treated
as if it were not specified.
Treat is as a valid value if it was explicitly specified
and write it to the cgroups.
It's finally time to start tracking disk backing chains in
<domain> XML. The first step is to start refactoring code
so that we have an object more convenient for representing
each host source resource in the context of a single guest
<disk>. Ultimately, I plan to move the new type into src/util
where it can be reused by virStorageFile, but to make the
transition easier to review, this patch just creates the
new type then fixes everything until it compiles again.
* src/conf/domain_conf.h (_virDomainDiskDef): Split...
(_virDomainDiskSourceDef): ...to new struct.
(virDomainDiskAuthClear): Use new type.
* src/conf/domain_conf.c (virDomainDiskDefFree): Split...
(virDomainDiskSourceDefClear): ...to new function.
(virDomainDiskGetType, virDomainDiskSetType)
(virDomainDiskGetSource, virDomainDiskSetSource)
(virDomainDiskGetDriver, virDomainDiskSetDriver)
(virDomainDiskGetFormat, virDomainDiskSetFormat)
(virDomainDiskAuthClear, virDomainDiskGetActualType)
(virDomainDiskDefParseXML, virDomainDiskSourceDefFormat)
(virDomainDiskDefFormat, virDomainDiskDefForeachPath)
(virDomainDiskDefGetSecurityLabelDef)
(virDomainDiskSourceIsBlockType): Adjust all users.
* src/lxc/lxc_controller.c (virLXCControllerSetupDisk):
Likewise.
* src/lxc/lxc_driver.c (lxcDomainAttachDeviceMknodHelper):
Likewise.
* src/qemu/qemu_command.c (qemuAddRBDHost, qemuParseRBDString)
(qemuParseDriveURIString, qemuParseGlusterString)
(qemuParseISCSIString, qemuParseNBDString)
(qemuDomainDiskGetSourceString, qemuBuildDriveStr)
(qemuBuildCommandLine, qemuParseCommandLineDisk)
(qemuParseCommandLine): Likewise.
* src/qemu/qemu_conf.c (qemuCheckSharedDevice)
(qemuAddISCSIPoolSourceHost, qemuTranslateDiskSourcePool):
Likewise.
* src/qemu/qemu_driver.c (qemuDomainUpdateDeviceConfig)
(qemuDomainPrepareDiskChainElement)
(qemuDomainSnapshotCreateInactiveExternal)
(qemuDomainSnapshotPrepareDiskExternalBackingInactive)
(qemuDomainSnapshotPrepareDiskInternal)
(qemuDomainSnapshotPrepare)
(qemuDomainSnapshotCreateSingleDiskActive)
(qemuDomainSnapshotUndoSingleDiskActive)
(qemuDomainBlockPivot, qemuDomainBlockJobImpl)
(qemuDomainBlockCopy, qemuDomainBlockCommit): Likewise.
* src/qemu/qemu_migration.c (qemuMigrationIsSafe): Likewise.
* src/qemu/qemu_process.c (qemuProcessGetVolumeQcowPassphrase)
(qemuProcessInitPasswords): Likewise.
* src/security/security_selinux.c
(virSecuritySELinuxSetSecurityFileLabel): Likewise.
* src/storage/storage_driver.c (virStorageFileInitFromDiskDef):
Likewise.
* tests/securityselinuxlabeltest.c (testSELinuxLoadDef):
Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Part of a series of cleanups to use new accessor methods.
Several places in domain_conf.c still open-code raw field access,
but that code will be touched later with the diskDef struct split
so I'm avoiding churn here.
* src/conf/domain_audit.c (virDomainAuditStart): Use accessors.
* src/conf/domain_conf.c (virDomainDiskIndexByName)
(virDomainDiskPathByName, virDomainDiskDefForeachPath)
(virDomainDiskSourceIsBlockType): Likewise.
* src/conf/snapshot_conf.c (virDomainSnapshotAlignDisks):
Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
A future patch will split virDomainDiskDef, in order to track
multiple host resources per guest <disk>. To reduce the size
of that patch, I've factored out the four most common accesses
into functions, so that I can incrementally upgrade the code
base to use the accessors, and so that code that doesn't care
about the distinction of per-file details won't have to be
changed when the struct changes.
* src/conf/domain_conf.h (virDomainDiskGetType)
(virDomainDiskSetType, virDomainDiskGetSource)
(virDomainDiskSetSource, virDomainDiskGetDriver)
(virDomainDiskSetDriver, virDomainDiskGetFormat)
(virDomainDiskSetFormat): New prototypes.
* src/conf/domain_conf.c (virDomainDiskGetType)
(virDomainDiskSetType, virDomainDiskGetSource)
(virDomainDiskSetSource, virDomainDiskGetDriver)
(virDomainDiskSetDriver, virDomainDiskGetFormat)
(virDomainDiskSetFormat): Implement them.
* src/libvirt_private.syms (domain_conf.h): Export them.
Signed-off-by: Eric Blake <eblake@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1007754
When attaching a new device, we need to check if its boot order
configuration is compatible with current domain definition.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
The offset of virDomainDeviceInfo structure within a device definition
varies with device type and some types do not contain the info structure
at all. This new API makes it easier to access the info structure from a
generic virDomainDeviceDef structure.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
When checking compatibility of a device with a domain definition, we
should know what we're going to do with the device. Because we may need
to check for different things when we're attaching a new device versus
detaching an existing device.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Any source file which calls the logging APIs now needs
to have a VIR_LOG_INIT("source.name") declaration at
the start of the file. This provides a static variable
of the virLogSource type.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This patch is not trying to fix every switch, just the ones I worked
with last time, because some of these were especially unreadable.
Covers enums virDomainGraphicsType and virDomainChrType (where
applicable).
Also sort its cases by their value.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
While running qemuxml2xmltest, it was found that valgrind pointed out
the following memory leak:
==21905== 26 bytes in 1 blocks are definitely lost in loss record 23 of 69
==21905== at 0x4A069EE: malloc (vg_replace_malloc.c:270)
==21905== by 0x3E782A754D: xmlStrndup (in /usr/lib64/libxml2.so.2.7.6)
==21905== by 0x4CD986D: virDomainChrSourceDefParseXML (domain_conf.c:7233)
==21905== by 0x4CE4199: virDomainChrDefParseXML (domain_conf.c:7512)
==21905== by 0x4CFAF3F: virDomainDefParseXML (domain_conf.c:12303)
==21905== by 0x4CFB46E: virDomainDefParseNode (domain_conf.c:13031)
==21905== by 0x4CFB5E9: virDomainDefParse (domain_conf.c:12973)
==21905== by 0x41E9D8: testCompareXMLToXMLFiles (qemuxml2xmltest.c:40)
==21905== by 0x41EBAA: testCompareXMLToXMLHelper (qemuxml2xmltest.c:93)
==21905== by 0x421D21: virtTestRun (testutils.c:199)
==21905== by 0x41FCE9: mymain.part.0 (qemuxml2xmltest.c:244)
==21905== by 0x42249D: virtTestMain (testutils.c:782)
==21905==
... and 7 more
Many of the domain xml format functions (including all of the device
format functions) had hard-coded spaces, which made for incorrect
indentation when those functions were called in a different context
(for example, commit 2122cf39 added <interface> XML into the document
provided to a network hook script, and in this case it should have
been indented by 2 spaces, but was instead indented by 6 spaces).
To make it possible to insert a properly indented device anywhere into
an XML document, this patch removes hardcoded spaces from the
formatting functions, and calls virBufferAdjustIndent() at appropriate
places instead. (a regex search of domain_conf.c was done to assure
that all occurrences of hardcoded spaces were removed).
virDomainDiskSourceDefFormatInternal() is also called from
snapshot_conf.c, so two virBufferAdjustIndent() calls were temporarily
added around that call - those functions will have hardcoded spaces
removed in a separate patch.
This could cause some conflicts when backporting future changes to the
formatting functions to older branches, but fortunately the changes
are almost all trivial, so conflict resolution will be obvious.
When ABI stability check fails, we only log the error message describing
the incompatibility. Let's log both XMLs in case of an error to make it
easier to analyze where and why the stability check failed.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
This fixes a possible double free. In virNetworkAssignDef() if
virBitmapNew() fails, then virNetworkObjFree(network) is called.
However, with network->def pointing to actual @def. So if caller
frees @def again, ...
Moreover, this fixes one possible memory leak too. In
virInterfaceAssignDef() if appending to the list of interfaces
fails, we ought to call virInterfaceObjFree() instead of bare
VIR_FREE().
Although, in order to do that some array size variables needs
to be turned into size_t rather than int.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Until now, the "live" XML status of an <interface type='network'>
device would always show the network information, rather than the
exact hardware device that was used. It would also show the name of
any portgroup the interface belonged to, rather than providing the
configuration that was derived from that portgroup. As an example,
given the following network definition:
[A]
<network>
<name>testnet</name>
<forward type='bridge' dev='p4p1_0'>
<interface dev='p4p1_0'/>
<interface dev='p4p1_1'/>
<interface dev='p4p1_2'/>
<interface dev='p4p1_3'/>
</forward>
<portgroup name='admin'>
<bandwidth>
<inbound average='1000' peak='5000' burst='1024'/>
<outbound average='128' peak='256' burst='256'/>
</bandwidth>
</portgroup>
</network>
and the following domain <interface>:
[B]
<interface type='network'>
<source network='testnet' portgroup='admin'/>
</interface>
the output of "virsh dumpxml $domain" while the domain was running
would yield something like this:
[C]
<interface type='network'>
<source network='testnet' portgroup='admin'/>
<target dev='macvtap0'/>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
In order to learn the exact bandwidth information of the interface, a
management application would need to retrieve the XML for testnet,
then search for the portgroup named "admin". Even worse, there was no
simple and standard way to learn which host physdev the macvtap0
device is attached to.
Internally, libvirt has always kept this information in the
virDomainDef that is held in memory, as well as storing it in the
(libvirt-internal-only) domain status XML (in
/var/run/libvirt/qemu/$domain.xml). In order to not confuse the runtime
"actual state" with the config of the device, it's internally stored
like this:
[D]
<interface type='network'>
<source network='testnet' portgroup='admin'/>
<actual type='direct'>
<source dev='p4p1_0' mode='bridge'/>
<bandwidth>
<inbound average='1000' peak='5000' burst='1024'/>
<outbound average='128' peak='256' burst='256'/>
</bandwidth>
</actual>
<target dev='macvtap0'/>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
This was never exposed outside of libvirt though, because I thought it
would be too awkward for a management application to need to look in
two places for the same information, but I also wasn't sure that it
would be okay to overwrite the config info (in this case "<source
network='testnet' portgroup='admin'/>") with the actual runtime info
(everything inside <actual> above).
Now we have a need for this information to be made available to
management applications (in particular, so that a network "plugged"
hook will have full information about the device that is being plugged
in), so it's time to take the leap and decide that it is acceptable
for the config info to be replaced with actual runtime state (but
*only* when reporting domain live status, *not* when saving state in
/var/run/libvirt/qemu/$domain.xml - that remains the same so that
there is no loss of information). That is what this patch does - once
applied, the output of "virsh dumpxml $domain" when the domain is
running will contain something like this:
[E]
<interface type='direct'>
<source dev='p4p1_0' mode='bridge'/>
<bandwidth>
<inbound average='1000' peak='5000' burst='1024'/>
<outbound average='128' peak='256' burst='256'/>
</bandwidth>
<target dev='macvtap0'/>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
In effect, everything that is internally stored within <actual> is
moved up a level to where a management application will expect
it. This means that the management application will only look in a
single place to learn - the type of interface in use, the name of the
physdev (if relevant), the <bandwidth>, <vlan>, and <virtualport>
settings in use.
The potential downside is that a management app looking at this output
will not see that the physdev 'p4p1_0' was actually allocated from the
network named 'testnet', or that the bandwidth numbers were taken from
the portgroup 'admin'. However, if they are interested in that info,
they can always get the "inactive" XML for the domain.
An example of where this could cause problems is in virt-manager's
network device display, which shows the status of the device, but
allows you to edit that status info and save it as the new
config. Previously virt-manager would always display the information
in example [C] above, and allow editing that. With this patch, it will
instead display what is in [E] and allow editing it directly, which
could lead to some confusion. I would suggest that virt-manager have
an "edit" button which would change the display from the "live" xml to
the "inactive" xml, so that editing would be done on that; such a
change would both handle the new situation, and also be compatible
with older releases.
This function is currently only called from one place, but in a
subsequent patch will be called from a 2nd place.
The new function exactly replicates the original behavior of the part
of virDomainActualNetDefFormat() that it replaces, but takes a
virDomainNetDefPtr instead of virDomainActualNetDefPtr, and uses the
virDomainNetGetActual*() functions whenever possible, rather than
reaching into def->data.network.actual - this is to be sure that we
are reporting exactly what is being used internally, just in case
there are any discrepancies (there shouldn't be).
This moves the call to virNetDevBandwidthFormat() in
virDomainNetDefFormat() to be called right after the call to
virNetDevVPortProfileFormat(), so that a single chunk of that function
can be placed inside an if that conditionally calls
virDomainActualNetDefContentsFormat() instead (next patch). The
re-ordering necessitates modifying a couple of test data files.
In practice, if a virDomainNetDef has a virDomainActualNetDef
allocated, the ActualNetDef will *always* contain the bandwidth and
vlan data from the NetDef (unless there was also a portgroup involved
- see networkAllocateActualDevice()).
However, virDomainNetGetActual(Bandwidth|Vlan)() were coded to make it
appear as if it might be possible to have a valid bandwidth/vlan in
the NetDef, but a NULL in the ActualNetDef. Believing this un-truth
could lead to writing unnecessarily defensive code when dealing with
the virDomainGetActual*() functions, so this patch makes it more
obvious:
If there is an ActualNetDef, it will always have a copy of the
various appropriate bits from its parent NetDef, and the
virDomainGetActual* function will *always* return the data from the
ActualNetDef, not from the NetDef.
The reason for this effective-NOP patch is that a subsequent patch to
change virDomainNetDefFormat will rely on the above rule.
The virDomainGetRootFilesystem method can be generalized to allow
any filesystem path to be obtained.
While doing this, start a new test case for purpose of testing various
helper methods in the domain_conf.{c,h} files, such as this one.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
At this point it has a limited functionality and is highly
experimental. Supported domain operations are:
* define
* start
* destroy
* dumpxml
* dominfo
It's only possible to have only one disk device and only one
network, which should be of type bridge.
PS2 devices only work on X86 platform, other platforms may need
USB devices instead. Athough it doesn't influence the QEMU command line,
it's not right to add PS2 mouse/keyboard for non-X86 platform.
Signed-off-by: Li Zhang <zhlcindy@linux.vnet.ibm.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
There is no keyboard support currently in libvirt.
For some platforms (PPC64 QEMU) this makes graphics unusable,
since the keyboard is not implicit and it can't be added via libvirt.
Signed-off-by: Li Zhang <zhlcindy@linux.vnet.ibm.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
virDomainDefCompatibleDevice blocks use of USB if no USB
controller is present. This is not correct for containers
since devices can be assigned directly regardless of any
controllers.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This new flag is to be used for tainting domains which
XML definition was altered at runtime by a hook script.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
All the data for getting the actual type is present in the domain
config. There is no need to have this function private to the qemu
driver and it will be re-used later in other parts of libvirt
Add a new character device backend called 'spiceport' that uses
spice's channel for communications and apart from spicevmc can be used
as a backend for any character device from libvirt's point of view.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Add a new <timer> for the HyperV reference time counter enlightenment
and the iTSC reference page for Windows guests.
This feature provides a paravirtual approach to track timer events for
the guest (similar to kvmclock) with the option to use real hardware
clock on systems with a iTSC with compensation across various hosts.
According to the documentation various timer options are only supported
by certain timer types. Add a post parse check to verify that the user
didn't specify invalid options.
Also fix the qemu command line parsing function to set correct default
values for the kvmclock timer so that it passes the new check.
According to the documentation describing various tunables for domain
timers not all the fields are supported by all the driver types. Express
these in the RNG:
- rtc, platform: Only these support the "track" attribute.
- tsc: only one to support "frequency" and "mode" attributes
- hpet, pit: tickpolicy/catchup attribute/element
- kvmclock: no extra attributes are supported
Additionally the attributes of the <catchup> element for
tickpolicy='catchup' are optional according to the parsing code. Express
this in the XML and fix a spurious space added while formatting the
<catchup> element and add tests for it.
This commit allows to attach/detach a <filesystem> device in qemu. For
this purpose I'm introducing two new functions: virDomainFSInsert() and
virDomainFSRemove() and adding necessary code in the qemu driver. It
compares filesystems based on their "destination" folder. So if two
filesystems share the same destination, they are considered equal and
the qemu driver would reject the insertion.
Signed-off-by: Matthieu Coudron <mattator@gmail.com>
spice-server offers an API to disable file transfer messages
on the agent channel between the client and the guest.
This is supported in qemu through the disable-agent-file-xfer option.
This patch exposes this option to libvirt.
Adds a new element 'filetransfer', with one property,
'enable', which accepts a boolean.
Default is enabled, for backward compatibility.
Depends on the capability exported in the first patch of the series.
Signed-off-by: Francesco Romani <fromani@redhat.com>
This patch introduces new xml elements under <blkiotune>,
we use these new elements to setup the throttle blkio
cgroup for domain. The new blkiotune node looks like this:
<blkiotune>
<device>
<path>/path/to/block</path>
<weight>1000</weight>
<read_iops_sec>10000</read_iops_sec>
<write_iops_sec>10000</write_iops_sec>
<read_bytes_sec>1000000</read_bytes_sec>
<write_bytes_sec>1000000</write_bytes_sec>
</device>
</blkiotune>
Signed-off-by: Guan Qiang <hzguanqiang@corp.netease.com>
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Currently, during XML parsing, when a call to a FromString() function to
get an enum value fails, the error which is reported is either
VIR_ERR_CONFIG_UNSUPPORTED, VIR_ERR_INTERNAL_ERROR or VIR_ERR_XML_ERROR.
This commit makes such conversion failures consistently return
VIR_ERR_CONFIG_UNSUPPORTED.
