Extract the (possible) removal of the PR backend and daemon into a
separate helper which enters monitor on its own. This simplifies the
code and allows reuse of this function in the future e.g. for blockjobs
where removing a image with PR may result into PR not being necessary.
Since the PR is not used often the overhead of entering monitor again
should be negligible.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Add code which will convert a disk definition into
qemuHotplugDiskSourceData and then reuse qemuHotplugDiskSourceRemove to
remove all the backend related objects.
This unifies the detach code as much as possible with the already
existing helpers and will allow reuse this infrastructure when changing
removable disk media.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
qemuDomainRemoveDiskDevice would leak the disk to be removed if the VM
crashed since it was removed from the definition but not freed.
Broken in commit 105bcdde76b which moved the removal from the definition
earlier.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Similarly to how we've intergrated data belonging to a single
virStorageSource for purposes of attaching it to a qemu instance we will
need to agregate data relevant for the whole disk. With blockdev there
will be some disk-wide backing chain members such as the copy-on-read
handler.
Introduce qemuHotplugDiskSourceData which agregates the backing chain
and other data relevant for the disk and functions which generate it
and apply and rollback it.
In addition to disk hotplug this will also be reused for media changing
where we need to exchange the full disk backend.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The warning messages which include the disk source could potentially
format NULL using %s as virDomainDiskGetSource may return NULL for e.g.
NBD disks. As most of the APIs are NOOP for remote disks the usage of
the source string only should be fine for now.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that there's only one use of it, replace it directly by the code
filling it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
qemuHotplugPrepareDiskAccess can be used to tear down disk access so we
can replace the open-coded version collecting the same function calls.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Since 2.10 QEMU supports a new display type egl-headless which uses the
drm nodes for OpenGL rendering copying back the rendered bits back to
QEMU into a dma-buf which can be accessed by standard "display" apps
like VNC or SPICE. Although this display type can be used on its own,
for any practical use case it makes sense to pair it with either VNC or
SPICE display. The clear benefit of this display is that VNC gains
OpenGL support, which it natively doesn't have, and SPICE gains remote
OpenGL support (native OpenGL support only works locally through a UNIX
socket, i.e. listen type=socket/none).
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Since commit f14c37, virDomainConfVMNWFilterTeardown is reporting errors
thus any previously reported error gets overwritten.
We need to save the errors in qemuDomainAttachNetDevice before calling
this function when we are in cleanup code.
https://bugzilla.redhat.com/show_bug.cgi?id=1598311
Signed-off-by: Katerina Koukiou <kkoukiou@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The check whether the object holding secret for decryption of the TLS
environment was wrong and would always attempt to add the object. This
lead to a crash due to recent refactors.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1598015
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
It builds the string for '-device' from a virDomainDiskDef.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
SD card hotplug should not be implemented until they can be used via
-blockdev.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
from src/qemu/qemu_domain_address.c to src/conf/domain_addr.c
and rename to virDomainCCWAddressSetCreateFromDomain
(rename to have Address in full instead of Addr to follow
the naming convention of other virDomainCCWAddress functions)
Signed-off-by: Anya Harter <aharter@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The private data of a virStorageSource which is backing an iSCSI hostdev
may be NULL if no authentication is present. The code handling the
hotplug would attempt to extract the authentication info stored in
'secinfo' without checking if it is allocated which resulted in a crash.
Here we opt the easy way to check if srcPriv is not NULL so that we
don't duplicate all the logic which selects whether the disk source has
a secret.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1597550
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1585108
When updating a live device users might pass different alias than
the one the device has. Currently, this is silently ignored which
goes against our behaviour for other parts of the device where we
explicitly allow only certain changes and error out loudly on
anything else.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Mediated devices of model 'vfio-ccw' are using CCW addresses, so make
sure to call the correct address preparation code for the model.
Reviewed-by: Shalini Chellathurai Saroja <shalini@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Signed-off-by: Bjoern Walk <bwalk@linux.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Remove the callbacks that the nwfilter driver registers with the domain
object config layer. Instead make the current helper methods call into
the public API for creating/deleting nwfilter bindings.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
VMs with hardcoded platform network devices are forced to use old
style '-net nic' command line config. Current we use qemu's vlan
option to hook this with the '-netdev' host side of things.
However since qemu 1.2 there is '-net nic,netdev=X' option for
explicitly referencing a netdev ID, which is more inline with
typical VM commandlines, so let's switch to that
Signed-off-by: Cole Robinson <crobinso@redhat.com>
And replace all calls with virObjectEventStateQueue such that:
qemuDomainEventQueue(driver, event);
becomes:
virObjectEventStateQueue(driver->domainEventState, event);
And remove NULL checking from all callers.
Signed-off-by: Anya Harter <aharter@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Replace instances where we previously called virGetLastError just to
either get the code or to check if an error exists with
virGetLastErrorCode to avoid a validity pre-check.
Signed-off-by: Ramy Elkest <ramyelkest@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Now that we have one place that sets up all disk-related objects to
qemuBlockStorageSourceAttachDataPtr we can easily reuse the data in the
command-line formatter by implementing a worker which will convert the
data.
A huge advantage is that it will be way easier to integrate this with
-blockdev later on.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduce a new setup function for all the related configuration and
move the setup and attachment of the PR code.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Create a new "Prepare" function and move the drive add code into the new
helpers. This will eventually allow to simplify and unify the attaching
code for use with blockdev at the same time as providing compatibility
with older qemus.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Add code that will handle the managed persistent reservations object
separately from the unmanaged one. There is only one managed object so
handling it with disks is awkward and does not scale well when backing
chains come into view.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Also since we don't do any conditional formatting, fix the comment for
the function.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We need to check if TLS is enabled as the variable is a tristate.
Currently we'd setup TLS even if it was explicitly turned off.
Thankfully TLS for disks was only used with the vxhs protocol so hardly
anybody would ever be able to hit the problem.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Disks are client-only so we don't need to have this variable. We also
always pass false for 'isListen' to qemuBuildTLSx509BackendProps for all
disk-related code-paths so the 'tlsVerify' is ignored anyways.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Note that it's okay to pass NULL to qemuDomainDelTLSObjects in
qemuDomainAddTLSObjects as the tls-creds-x509 object was either not
created or qemu crashed.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function adds the object of a certain type. Change the name so that
we make room for the generic function.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function generates JSON properties rather than a string so rename
it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
'secinfo' is present also for migrations. Delete the misleading comment.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Setting up the 'secinfo' for the TLS private key password also generates
the given alias, so we don't need to generate another one.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Move the TLS object alias setup earlier. Also make sure that the alias
is not overwritten on hotplug.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
For some reason the function returned an error if secAlias was not
passed in. It's not an error, in fact it's desired.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Using 'haveTLS' to do this is pointless if the alias is not set.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that we remember the alias we've used to attach the secret objects
we should reuse them rather than trying to infer them from the disk
configuration.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
