https://bugzilla.redhat.com/show_bug.cgi?id=1477880
If the "/#" is missing from the provided iSCSI path, then we need
to provide the default LUN of /0; otherwise, QEMU will fail to parse
the URL causing a failure to either create the guest or hotplug
attach the storage.
During post parse, for any iSCSI disk or hostdev, scan the source
path looking for the presence of '/', if found, then we can assume
the LUN is provided. If not found, alter the input XML to add the
"/0". This will cause the generated XML to have the generated
value when the domain config is saved after post parse.
This option requires:
<ioapic driver='qemu'/>
Report an error in case someone tries to combine
it with different ioapic setting.
Setting 'eim' on without enabling 'intremap' does not make sense.
https://bugzilla.redhat.com/show_bug.cgi?id=1457610
https://bugzilla.redhat.com/show_bug.cgi?id=1439991
Whenever a device is being updated via
virDomainUpdateDeviceFlags() API, we parse the device XML and
ideally run some generic checks to validate the configuration
(e.g. if device defines per-device boot order but the domain has
os/boot element already). Well, that's the theory - due to a
missing check we've jumped early from that check function.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This allows drivers to set their own default. But if a driver neglects
to fill one in, we still error like we previously would at parse time.
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Will be needed for future patches to pull the default video type
setting out of XML parsing routines.
Signed-off-by: Cole Robinson <crobinso@redhat.com>
We always truncated the name at 20 bytes instead of characters. In
case 20 bytes were in the middle of a multi-byte character, then the
string became invalid and various parts of the code would error
out (e.g. XML parsing of that string). Let's instead properly
truncate it after 20 characters instead.
We cannot test this in our test suite because we would need to know
what locales are installed on the system where the tests are ran and
if there is supported one (most probably there will be, but we cannot
be 100% sure), we could initialize gettext in qemuxml2argvtest, but
there would still be a chance of getting two different (both valid,
though) results.
In order to test this it is enough to start a machine with a name for
which trimming it after 20 bytes would create invalid sequence (e.g.
1234567890123456789č where č is any multi-byte character). Then start
the domain and restart libvirtd. The domain would disappear because
such illegal sequence will not go through the XML parser. And that's
not a bug of the parser, it should not be in the XML in the first
place, but since we don't use any sophisticated formatter, just
mash some strings together, the formatting succeeds.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1448766
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
This reverts commit 92840eb3a7.
More recent reviews/changes don't have the vir*ObjNew APIs
consuming the @def, so remove from Interface as well. Changes
needed to also deal with conflicts from commit id '46f5eca4'.
Signed-off-by: John Ferlan <jferlan@redhat.com>
While formatting disk or chardev element they both uses
virDomainDiskSourceDefFormatSeclabel() function which also closes
the source element. This is not extendable.
Use the new virXMLFormatElement() to properly format the source
element with possible child elements.
As a side effect it fixes a bug in disk source formatting.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
To handle setting a default heads value. Convert callers that were
doing it by hand
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
For selected hostdev types, we validate that the address type
matches the subsystem type when parsing the XML.
Move it to the validation phase, to allow extending the checks
to other subsystem types without making existing domains disappear.
When parsing bootable devices, we maintain a bitmap of used
<boot order=""> elements. Use it in the post-parse function
to figure out whether the user tried to mix per-device and
per-domain boot elements.
This removes the need to count them twice.
These functions contain the post-parse steps common for all drivers.
Rename it to use the 'Common' prefix, instead of the vagueness
of 'Internal', leaving 'Internal' available for other vague uses.
Since the source element is parsed only once for these type of
character devices we don't have to use temporary variable and
check whether the variable was already set.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
The extra check whether (connect|bind)(Host|Service) was set is
required because for UDP chardev there can be two source elements.
Without the check there could be a memory leak.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
In order to ensure that the default protocol is RAW, explicitly
assigning VIR_DOMAIN_CHR_TCP_PROTOCOL_RAW = 0.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Currently we accept and correctly parse this chardev XML:
...
<channel type='tcp'>
<source mode='connect'/>
<source mode='bind' host='localhost'/>
<source service='4567'/>
<target type='virtio' name='test'/>
</channel>
...
The parsed formatted XML is:
...
<channel type='tcp'>
<source mode='connect' host='localhost' service='4567'/>
<target type='virtio' name='test'/>
</channel>
...
That behavior is super wrong and should not be allowed. If you notice
the current parse takes the first found attribute and uses that value,
so for example from the "<source mode='bind' host='localhost'/>" only
the "host" attribute is used. It works the same way for all possible
attributes that we are able to parse for source element.
This patch enforces providing only one source element for all character
devices, only for UDP type we allow to provide two source elements
since you can specify both modes.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Since its introduction in commit 874e65aa, if someone requests:
<os><bios useserial="yes"/><os/>
we report an error if we cannot successfully count the number
of serial devices via an XPath query.
Instead of fixing the check (and moving it to the validation phase,
to prevent existing domains from disappearing), drop it completely.
For QEMU, the number of serials is checked when building the command
line.
I mistakenly thought pSeries guests supported 32 PHBs,
but it turns out they only support 31. Validate the
target index accordingly.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1479647
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Validation should happen after parsing, so the proper
location for it is virDomainControllerDefValidate()
rather than virDomainControllerDefParseXML().
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Some failures of the post parse callback can be tolerated. This is
specifically desired when loading the configs of existing VMs. In such
case the post parse callback should not really be modifying anything
in the definition.
This patch adds a parse flag VIR_DOMAIN_DEF_PARSE_ALLOW_POST_PARSE_FAIL
which will allow the callbacks to report non-fatal failures by returning
a positive return value. In such case the field 'postParseFailed' in the
domain definition is set to true, to notify the drivers that the
callback failed and possibly needs to be re-run.
Post parse callbacks will need to be able to signal that they failed
non-fatally. This means that we need to return the value returned by the
callback without modification.
Some drivers use def-specific private data across callbacks (e.g.
qemuCaps in the qemu driver). Currently it's mostly allocated in every
single callback. This is rather wasteful, given that every single call
to the device callback allocates it.
The new callback will allocate the data (if not provided externally) and
then use it for the VM, address and device post parse callbacks.
Add yet another post parse callback, which is executed prior the real
one without @parseOpaque. This is meant to set basics before
@parseOpaque (in case of the qemu driver qemuCaps) can be allocated.
This callback will allow to optimize passing of custom parseOpaque
through the callbacks.
Back in the day when I was implementing QoS for networks there
were no self inflating virBitmaps. Only the static ones.
Therefore, I had to allocate the whole 8KB of memory in order to
keep track of used/unused class IDs. This is rather wasteful
because nobody is ever gonna use that much classes (kernel
overhead would drastically lower the bandwidth). Anyway, now that
we have self inflating bitmaps we can start small and allocate
more if there's need for it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Rename the variable, recent review requested just use of @filter,
so be consistent throughout.
NB: Also change the virNWFilterPtr to be @nwfilter to not conflict
with the renamed variable.
Use the structure names in the @data setup - makes it easier than
going back to find the struct fields to make sure the order of the
data is correct.
Signed-off-by: John Ferlan <jferlan@redhat.com>
To be consistent with the API definition, use the @maxnames instead
of @nnames when describing/comparing against the maximum names to
be provided for the *ConnectList[Defined]Networks APIs.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Move the virObjectRef in virNetworkObjAssignDefLocked to after
the virHashAddEntry to make it "clearer" why the @ref is being
incremented. Upon return from the ObjNew we will have 1 ref on
the object already, adding it to the hash table requires the
increment.
Signed-off-by: John Ferlan <jferlan@redhat.com>
In preparation to privatize the virNetworkObj - create an accessor function
to get the current @persistent value. Also change the value to a bool rather
than an unsigned int (since that's how it's generated anyway).
Signed-off-by: John Ferlan <jferlan@redhat.com>
In order to privatize the virNetworkObj create accessors in virnetworkobj
in order to handle the get/set of the active value.
Also rather than an unsigned int, convert it to a boolean to match other
drivers representation and the reality of what it is.
Signed-off-by: John Ferlan <jferlan@redhat.com>
In preparation for making the object private, create a couple of API's
to get the obj->def & obj->newDef and set the obj->def.
While altering networkxml2conftest.c to use the virNetworkObjSetDef
API, fix the name of the variable from @dev to @def
Signed-off-by: John Ferlan <jferlan@redhat.com>
Change the variable name to be a bit more descriptive and less confusing
when used with the data.network.actual->class_id.
Signed-off-by: John Ferlan <jferlan@redhat.com>
In preparation for making the object private, create/use a couple of API's
to get/set the obj->dnsmasqPid and obj->radvdPid.
NB: Since the pid's can sometimes changed based on intervening functions,
be sure to always fetch the latest value.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Since we can only ever have one reference to obj->macmap, rather
than only clearing obj->macmap during virNetworkObjUnrefMacMap
(e.g. virtual network from networkShutdownNetwork), let's just
unconditionally clear the obj->macmap to ensure that some future
change that created it's own reference to obj->macmap wouldn't
have that reference disappear if virNetworkObjDispose got called.
Signed-off-by: John Ferlan <jferlan@redhat.com>
In preparation for having a private virNetworkObj - let's create/move some
API's that handle the obj->macmap. The API's will be renamed to have a
virNetworkObj prefix to follow conventions and the arguments slightly
modified to accept what's necessary to complete their task.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than overload virObjectUnlock as commit id '77f4593b' has
done, create a separate virObjectRWUnlock API that will force the
consumers to make the proper decision regarding unlocking the
RWLock's. Similar to the RWLockRead and RWLockWrite, use the
virObjectGetRWLockableObj helper. This restores the virObjectUnlock
code to using the virObjectGetLockableObj.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Instead of making virObjectLock be the entry point for two
different types of locks, let's create a virObjectRWLockWrite API
which will only handle the virObjectRWLockableClass objects.
Use the new virObjectRWLockWrite for the virdomainobjlist code
in order to handle the Add, Remove, Rename, and Load operations
that need to be very synchronous.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Since the class it represents is based on virObjectRWLockableClass
and in order to make sure we differentiate just in case anyone somehow
believes they could use virObjectLockRead for a virObjectLockableClass,
let's rename the API to use the RW in the name. Besides the RW locks
refer to pthread_rwlock_{init|rdlock|wrlock|unlock|destroy} while the
other locks refer to pthread_mutex_{init|lock|unlock|destroy}.
Signed-off-by: John Ferlan <jferlan@redhat.com>
This way later patches can add another structures with virResctrl
prefix without the meaning being even more confusing than it needs to
be.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
That means that returning negative values means error and non-negative
values differ in meaning, but are all successful.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
It doesn't access anything from conf/ and ti will be needed to use
from other util/ places. This split makes the separation clearer.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
In virDomainNetDefParseXML() the def->coalesce is parsed and
allocated by virDomainNetDefCoalesceParseXML() but in fact it's
never freed .
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
When parsing boot options from domain XML in
virDomainDefParseBootOptions() initenv id stored to:
def->os.initenv[i]->name
def->os.initenv[i]->value
But these are never freed.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
My commit 0c1d863 broke formatting of passthrough smartcard devices:
<smartcard mode='passthrough' type='spicevmc'/>
resulted in invalid XML:
<smartcard mode='passthrough'>
type='spicevmc'>
<address type='ccid' controller='0' slot='0'/>
</smartcard>
Split out chardev source formatting function into two -
one formatting the attributes and other formatting the subelements.
Reported-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
After an OOM error, virBuffer* APIs set buf->use to zero.
Adding a buffer to the parent buffer only if use is non-zero
would quietly drop data on error.
Check the error beforehand to make sure buf->use is zero
because we have not attempted to add anything to it.
Convert virDomainSmartcardDefFormat to use a separate buffer
for possible subelements, to avoid the need for duplicated
formatting logic in virDomainDeviceInfoNeedsFormat.
This function has grown to format more than just the address.
Delete the comment completely to avoid failing to update it
in the future.
Also, the indentation is now handled by the virBuffer APIs,
so the comment about indentation no longer makes sense.
This function returns false if virDomainDeviceInfoFormat
would not format anything.
Using it as the sole condition to decide whether to call
virDomainDeviceInfoFormat or not is pointless, since
the conditions are repeated in virDomainDeviceInfoFormat.
These functions were made exportable back in 3aa3e072 when I was
splitting network code into parsing and list management parts.
Since then the split is finished now and these two functions do
not need to be exported anymore.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
It is more related to a domain as we might use it even when there is
no systemd and it does not use any dbus/systemd functions. In order
not to use code from conf/ in util/ pass machineName in cgroups code
as a parameter. That also fixes a leak of machineName in the lxc
driver and cleans up and de-duplicates some code.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
If the virSecretLoadValue fails, the code jumped to cleanup without
setting @ret = obj, thus calling virSecretObjListRemove which only
accounts for the object reference related to adding the object to
the list during virSecretObjListAdd, but does not account for the
reference to the object itself as the return of @ret would be NULL
so the caller wouldn't call virSecretObjEndAPI on the object recently
added thus reducing the refcnt to zero.
This patch will perform the ObjListRemove in the failure path of
virSecretLoadValue and Unref @obj in order to perform clean up
and return @obj as NULL. The @def will be freed as part of the
virObjectUnref.
Rather than assign to a local variable, let's just assign directly to the
object using the error path for cleanup.
Signed-off-by: John Ferlan <jferlan@redhat.com>
The original name didn't hint at the fact that PHBs are
a pSeries-specific concept.
Suggested-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Recent commits made it so that pci-root controllers for
pSeries guests are automatically assigned the
spapr-pci-host-bridge model name; however, that prevents
guests to migrate to older versions of libvirt which don't
know about that model name at all, which at the moment is
all of them :)
To avoid the issue, just strip the model name from PHBs
when formatting the migratable XML; guests that use more
than one PHB are not going to be migratable anyway.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1472277
Commit id '106930aaa' altered the order of checking for an existing
vHBA (e.g something created via nodedev-create functionality outside
of the storage pool logic) which inadvertantly broke the code to
decide whether to alter/force the fchost->managed field to be 'yes'
because the storage pool will be managing the created vHBA in order
to ensure when the storage pool is destroyed that the vHBA is also
destroyed.
This patch moves the check (and checkParent helper) for an existing
vHBA back into the createVport in storage_backend_scsi. It also
adjusts the checkParent logic to more closely follow the intentions
prior to commit id '79ab0935'. The changes made by commit id '08c0ea16f'
are only necessary to run the virStoragePoolFCRefreshThread when
a vHBA was really created because there's a timing lag such that
the refreshPool call made after a startPool from storagePoolCreate*
wouldn't necessarily find LUNs, but the thread would. For an already
existing vHBA, using the thread is unnecessary since the vHBA already
exists and the lag to configure the LUNs wouldn't exist.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than use a forward linked list of elements, it'll be much more
efficient to use a hash table to reference the elements by unique name
and to perform hash searches.
This patch does all the heavy lifting of converting the list object to
use a self locking list that contains the hash table. Each of the FindBy
functions that do not involve finding the object by it's key (name) is
converted to use virHashSearch in order to find the specific object.
When searching for the key (name), it's possible to use virHashLookup.
For any of the list perusal functions that are required to evaluate
each object, the virHashForEach function is used.
There is no reason why two threads trying to look up two domains
should mutually exclude each other. Utilize new
virObjectRWLockable that was just introduced.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Currently, @port is type of string. Well, that's overkill and
waste of memory. Port is always an integer. Use it as such.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Split out parsing of one host into a separate function and add a new
function to loop through all the host XML nodes.
This change removes multiple levels of nesting due to the old XML
parsing approach used.
Alter the virStoragePoolObjNumOfVolumes, virStoragePoolObjVolumeGetNames,
and virStoragePoolObjVolumeListExport APIs to take a virStoragePoolObjPtr
instead of the &obj->volumes and obj->def.
Signed-off-by: John Ferlan <jferlan@redhat.com>
The virDomainDeviceInfo struct is defined in device_conf,
so generic functions that operate on it should also be
defined there rather than in domain_conf.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
This patch addresses the same aspects on PPC the bug 1103314 addressed
on x86.
PCI expander bus creates multiple primary PCI busses, where each of these
busses can be assigned a specific NUMA affinity, which, on x86 is
advertised through ACPI on a per-bus basis.
For SPAPR, a PHB's NUMA affinities are assigned on a per-PHB basis, and
there is no mechanism for advertising NUMA affinities to a guest on a
per-bus basis. So, even if qemu-ppc manages to get some sort of multi-bus
topology working using PXB, there is no way to expose the affinities
of these busses to the guest. It can only be exposed on a per-PHB/per-domain
basis.
So patch enables NUMA node tag in pci-root controller on PPC.
The way to set the NUMA node is through the numa_node option of
spapr-pci-host-bridge device. However for the implicit PHB, the only way
to set the numa_node is from the -global option. The -global option applies
to all the PHBs unless explicitly specified with the option on the
respective PHB of CLI. The default PHB has the emulated devices only, so
the patch prevents setting the NUMA node for the default PHB.
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
While searching for an element using a function it may be
desirable to know the element key for future operation.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
These rules will make it possible for libvirt to
automatically assign PCI addresses in a way that
respects any isolation constraints devices might
have.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
Isolation groups will eventually allow us to make sure certain
devices, eg. PCI hostdevs, are assigned to guest PCI buses in
a way that guarantees improved isolation, error detection and
recovery for machine types and hypervisors that support it,
eg. pSeries guest on QEMU.
This patch merely defines storage for the new information
we're going to need later on and makes sure it is passed from
the hypervisor driver (QEMU / bhyve) down to the generic PCI
address allocation code.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
Now that we have a bit more control, let's convert our object into
a lockable object and let that magic handle the create and lock/unlock.
This also involves creating a virNodeDeviceEndAPI in order to handle
the object cleanup for API's that use the Add or Find API's in order
to get a locked/reffed object. The EndAPI will unlock and unref the
object returning NULL to indicate to the caller to not use the obj.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Move the structures to withing virnodedeviceobj.c
Move the typedefs from node_device_conf to virnodedeviceobj.h
Signed-off-by: John Ferlan <jferlan@redhat.com>
In an overall effort to privatize access to virNodeDeviceObj and
virNodeDeviceObjList into the virnodedeviceobj module, move the
object list parsing from node_device_driver and replace with a
call to a virnodedeviceobj helper. This follows other similar
APIs/helpers which peruse the object list looking for some specific
data in order to get/return an @device (virNodeDevice) object to
the caller.
Signed-off-by: John Ferlan <jferlan@redhat.com>
We're about to move the call to nodeDeviceSysfsGetSCSIHostCaps from
node_device_driver into virnodedeviceobj, so move the guts of the code
from the driver specific node_device_linux_sysfs into its own API
since virnodedeviceobj cannot callback into the driver.
Nothing in the code deals with sysfs anyway, as that's hidden by the
various virSCSIHost* and virVHBA* utility function calls.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Create local @obj and @def for the API's rather than referencing the
devs->objs[i][->def->]. It'll make future patches easier to read.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Ensure that any function that walks the node device object list is prefixed
by virNodeDeviceObjList.
Also, modify the @filter param name for virNodeDeviceObjListExport to
be @aclfilter.
Signed-off-by: John Ferlan <jferlan@redhat.com>
In preparation to make things private, make the ->devs be pointers to a
virNodeDeviceObjList and then manage everything inside virnodedeviceobj
Signed-off-by: John Ferlan <jferlan@redhat.com>
Create an allocator for the virNodeDeviceObjPtr - include setting up
the mutex, saving the virNodeDeviceDefPtr, and locking the return object.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than passing the object to be removed by reference, pass by value
and then let the caller decide whether or not the object should be free'd
and how to handle the logic afterwards. This includes free'ing the object
and/or setting the local variable to NULL to prevent subsequent unexpected
usage (via something like virNodeDeviceObjRemove in testNodeDeviceDestroy).
For now this function will just handle the remove of the object from the
list for which it was placed during virNodeDeviceObjAssignDef.
This essentially reverts logic from commit id '61148074' that free'd the
device entry on list, set *dev = NULL and returned. Thus fixing a bug in
node_device_hal.c/dev_refresh() which would never call dev_create(udi)
since @dev would have been set to NULL.
Signed-off-by: John Ferlan <jferlan@redhat.com>
This reverts commit b3e71a8830.
As it turns out this ends up very badly as the @def could be Free'd
even though it's owned by @obj as a result of the AssignDef.
When looking for slots suitable for a PCI device, libvirt
might need to add an extra PCI controller: for pSeries guests,
we want that extra controller to be a PHB (pci-root) rather
than a PCI bridge.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
pSeries guests will soon need the new information; luckily,
we can figure it out automatically most of the time, so
users won't have to worry about it.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
Adding it to the virDomainControllerPCIModelName enumeration
is enough for existing code to handle it, so parsing and
formatting will work without further tweaking.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
pSeries guests will soon be allowed to have multiple
PHBs (pci-root controllers), which of course means that
all but one of them will have a non-zero index; hence,
we'll need to relax the current check.
However, right now the check is performed in the conf
module, which is generic rather than tied to the QEMU
driver, and where we don't have information such as the
guest machine type available.
To make this change of behavior possible down the line,
we need to move the check from the XML parser to the
drivers. Luckily, only QEMU and bhyve are using PCI
controllers, so this doesn't result in much duplication.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
The current algorithm for slot allocation tries to be clever
and avoid looking at buses / slots more than once unless it's
necessary. Unfortunately that makes the code more complex,
and it will cause problem later on in some situations unless
even more complex code is added.
Since the performance gains are going to be pretty modest
anyway, we can just get rid of the extra complexity and use a
completely straighforward implementation instead.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
Move @function after @flags to match other functions in the
same module like virDomainPCIAddressReserveNextAddr().
Also move virDomainPCIAddressReserveNextAddr() closer to
virDomainPCIAddressReserveAddr() in the header file.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
This function was private to the QEMU driver and was,
accordingly, called qemuDomainPCIBusFullyReserved().
However the function is really not QEMU-specific at
all, so it makes sense to move it closer to the
virDomainPCIAddressBus struct it operates on.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
The virDomainDeviceInfoIsSet() function no longer exists.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
Fill them in right away rather than having to figure out at runtime
whether they are necessary or not.
virStorageSourceNetworkDefaultPort does not need to be exported any
more.
Since we're storing a virUUIDFormat'd string in our Hash Table, let's
modify the Lookup API to receive a formatted string as well.
Signed-off-by: John Ferlan <jferlan@redhat.com>
It comes very handy to have source path for chardevs. We already
have such function: virDomainAuditChardevPath() but it's static
and has name not suitable for exposing. Moreover, while exposing
it change its name slightly to virDomainChrSourceDefGetPath.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Users may want to run the init command of a container as a special
user / group. This is achieved by adding <inituser> and <initgroup>
elements. Note that the user can either provide a name or an ID to
specify the user / group to be used.
This commit also fixes a side effect of being able to run the command
as a non-root user: the user needs rights on the tty to allow shell
job control.
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Some containers may want the application to run in a special directory.
Add <initdir> element in the domain configuration to handle this case
and use it in the lxc driver.
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
When running an application container, setting environment variables
could be important.
The newly introduced <initenv> tag in domain configuration will allow
setting environment variables to the init program.
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Add support for vgaconf driver configuration. In domain xml it looks like
this:
<video>
<driver vgaconf='io|on|off'>
<model .../>
</video>
It was added with bhyve gop video in mind to allow users control how the
video device is exposed to the guest, specifically, how VGA I/O is
handled.
One can refer to the bhyve manual page to get more detailed description
of the possible VGA configuration options:
https://www.freebsd.org/cgi/man.cgi?query=bhyve&manpath=FreeBSD+12-current
The relevant part could be found using the 'vgaconf' keyword.
Also, add some tests for this new feature.
Signed-off-by: Roman Bogorodskiy <bogorodskiy@gmail.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Commit 54fa1b44af added virDomainDeviceInfo::loadparm
and updated virDomainDeviceInfoClear() accordingly, but
omitted the necessary virDomainDeviceInfoCopy() changes.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
If a remote call fails during event registration (more than likely from
a network failure or remote libvirtd restart timed just right), then when
calling the virObjectEventStateDeregisterID we don't want to call the
registered @freecb function because that breaks our contract that we
would only call it after succesfully returning. If the @freecb routine
were called, it could result in a double free from properly coded
applications that free their opaque data on failure to register, as seen
in the following details:
Program terminated with signal 6, Aborted.
#0 0x00007fc45cba15d7 in raise
#1 0x00007fc45cba2cc8 in abort
#2 0x00007fc45cbe12f7 in __libc_message
#3 0x00007fc45cbe86d3 in _int_free
#4 0x00007fc45d8d292c in PyDict_Fini
#5 0x00007fc45d94f46a in Py_Finalize
#6 0x00007fc45d960735 in Py_Main
#7 0x00007fc45cb8daf5 in __libc_start_main
#8 0x0000000000400721 in _start
The double dereference of 'pyobj_cbData' is triggered in the following way:
(1) libvirt_virConnectDomainEventRegisterAny is invoked.
(2) the event is successfully added to the event callback list
(virDomainEventStateRegisterClient in
remoteConnectDomainEventRegisterAny returns 1 which means ok).
(3) when function remoteConnectDomainEventRegisterAny is hit,
network connection disconnected coincidently (or libvirtd is
restarted) in the context of function 'call' then the connection
is lost and the function 'call' failed, the branch
virObjectEventStateDeregisterID is therefore taken.
(4) 'pyobj_conn' is dereferenced the 1st time in
libvirt_virConnectDomainEventFreeFunc.
(5) 'pyobj_cbData' (refered to pyobj_conn) is dereferenced the
2nd time in libvirt_virConnectDomainEventRegisterAny.
(6) the double free error is triggered.
Resolve this by adding a @doFreeCb boolean in order to avoid calling the
freeCb in virObjectEventStateDeregisterID for any remote call failure in
a remoteConnect*EventRegister* API. For remoteConnect*EventDeregister* calls,
the passed value would be true indicating they should run the freecb if it
exists; whereas, it's false for the remote call failure path.
Patch based on the investigation and initial patch posted by
fangying <fangying1@huawei.com>.
Similarly to commit 5da28cc306 this check
actually does not make sense since duplicate WWNs are used e.g. when
multipathing disks.
This reverts commit 780fe4e4ba.
Update the per device boot schema to add an optional loadparm parameter.
eg: <boot order='1' loadparm='2'/>
Extend the virDomainDeviceInfo to support loadparm option.
Modify the appropriate functions to parse loadparm from boot device xml.
Add the xml2xml test to validate the field.
Signed-off-by: Farhan Ali <alifm@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
On some platforms the number of bits in the cbm_mask might not be
divisible by 4 (and not even by 2), so we need to properly count the
bits. Similar file, min_cbm_bits, is properly parsed and used, but if
the number is greater than one, we lose the information about
granularity when reporting the data in capabilities. For that matter
always report granularity, but if it is not the same as the minimum,
add that information in there as well.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Use ATTRIBUTE_FALLTHROUGH, introduced by commit
5d84f5961b, instead of comments to
indicate that the fall through is an intentional behavior.
Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
In 9cb891141c we've introduced some logic to clearing suggested
macvtap/macvlan ifnames. The logic consists of comparing ifname
string with strings that libvirt would generate. However, due to
a typo only VIR_NET_GENERATED_MACVTAP_PREFIX was compared. Twice.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
virDomainXMLOption gains driver specific callbacks for parsing and
formatting save cookies.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
The code will be used by snapshots and domain save/restore code to store
additional data for a saved running domain. It is analogous to migration
cookies, but simple and one way only.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
This will be used later when a save cookie will become part of the
snapshot XML using new driver specific parser/formatter functions.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
The function will be used in paths where mismatching CPU defs are not an
error.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Now that we have a bit more control, let's convert our object into
a lockable object and let that magic handle the create and lock/unlock.
This commit also introduces virInterfaceObjEndAPI in order to handle the
lock unlock and object unref in one call for consumers returning a NULL
obj upon return. This removes the need for virInterfaceObj{Lock|Unlock}
external API's.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Move the consumption of @def in virInterfaceObjNew and then handle that
in the error path of virInterfaceObjListAssignDef since it's caller expects
to need to free @def when NULL is returned and so would virInterfaceObjFree.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Make the decision based on the usage of childBuf buffer.
This fixes the oddity in the test case introduced by commit c1c4d0d
where we would format an empty pair tag.
We need to decide whether to format <controller> as a single tag
or if it has any subelements.
Rewrite the function to use a separate buffer for subelements,
to make adding new options easier.
After some discussion on and off the linux-audit mailing list, we
should use different fields for the audit messages.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1218603
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
While checking for ABI stability, drivers might pose additional
checks that are not valid for general case. For instance, qemu
driver might check some memory backing attributes because of how
qemu works. But those attributes may work well in other drivers.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
It was only ever used in node_device_hal.c which really never used it
anyway since the NODE_DEV_UDI was never referenced. Remove free_udi()
and @privData as well as the references to obj->privateData & obj->privateFree.
Signed-off-by: John Ferlan <jferlan@redhat.com>
In preparation for privatizing the virNodeDeviceObj - create an accessor
for the @def field and then use it for various callers.
Signed-off-by: John Ferlan <jferlan@redhat.com>
In order to ensure that whenever something is added to virNodeDevCapType
that both functions are considered for processing of a new capability,
change the if-then-else construct into a switch statement.
Signed-off-by: John Ferlan <jferlan@redhat.com>
When searching for an NPIV capable fc_host, not only does there need to
be an "fc_host" capability with the specified wwnn/wwpn or fabric_wwn,
but that scsi_host must be vport capable; otherwise, one could end up
picking an exising vHBA/NPIV which wouldn't be good.
Currently not a problem since scsi_hosts are in an as found forward linked
list and the vport capable scsi_hosts will always appear before a vHBA by
definition. However, in the near term future a hash table will be used to
lookup the devices and that could cause problems for these algorithms.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Alter the algorithm to return a list of matching names rather than a
list of match virInterfaceObjPtr which are then just dereferenced
extracting the def->name and def->mac. Since the def->mac would be
the same as the passed @mac, just return a list of names and as long
as there's only one, extract the [0] entry from the passed list.
Also alter the error message on failure to include the mac that wasn't
found.
Signed-off-by: John Ferlan <jferlan@redhat.com>
