When commit id 'da86c6c2' added support for diskPriv->encinfo in
qemuDomainSecretDiskPrepare a change to qemuDomainSecretDiskDestroy
to was missed. Although qemuDomainDiskPrivateDispose probably would
do the trick.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

https://bugzilla.redhat.com/show_bug.cgi?id=1495511

When creating new /dev for domain ran in namespace we try to
preserve all sub-mounts of /dev. Well, not quite all. For
instance if /dev/foo/bar and /dev/foo are both mount points, only
/dev/foo needs preserving. /dev/foo/bar is preserved with it too.
Now, to identify such cases like this one STRPREFIX() is used.
That is not good enough. While it works for [/dev/foo/bar;
/dev/foo] case, it fails for [/dev/prefix; /dev/prefix2] where
the strings share the same prefix but are in fact two different
paths. The solution is to use STRSKIP().
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Reviewed-by: NErik Skultety <eskultet@redhat.com>

In the future, some aliases might be already parsed therefore we
should avoid overwriting them.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

Let's move all the virAsprintf()-s into separate functions for
better structure of the code. Later, when somebody wants to
generate a device alias, all they need is to expose the function.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

We have a special function for assigning aliases to RNG devices.
Use that instead of plain virAsprintf().
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

Apart from killing a lot of code this also "implements" authentication
and encryption for USB disks.

Get rid of the first copy of the mess.

This horrible piece of spaghetti code is copy-past(ae)d in the SCSI and
USB disk hotplug code with minimal changes. Extract it for further
reuse.

Some messages deal with the disk itself thus using the disk target is
better than using the disk source name which can be NULL in some cases.

The check if the disk is empty is wrong and would spuriously reject NBD
sources. Remove it.

The code can't fail so having error handling is pointless.

Move the space after the colon.

Back in the times of using 'pci_del', unplugging a device without
a PCI address was not wired up.

After completely removing support for qemu without QEMU_CAPS_DEVICE,
aliases are used to uniquely identify devices in all cases.

Remove the pointless validation of data that was already present
in the domain definition.

There is no point in iterating over all devices if none of them
could possibly match.

Allow unplugging USB and virtio USB devices.

https://bugzilla.redhat.com/show_bug.cgi?id=1379603

For both virtio input devices and USB input devices.

https://bugzilla.redhat.com/show_bug.cgi?id=1379603

A function that builds the -device string for input devices.

Move assignment of input device alias into a separate function,
for reuse on hotplug.

https://bugzilla.redhat.com/show_bug.cgi?id=1379603

https://bugzilla.redhat.com/show_bug.cgi?id=1379603

There are two more cases where we set an S390/CCW/PCI address
type based on the machine type.

Reuse qemuDomainEnsureVirtioAddress to reduce repetition.

Split out the common code responsible for reserving/assigning
PCI/CCW addresses for virtio disks into a helper function
for reuse by other virtio devices.

Let it be reused in qemu_domain_address.

We pass the source.file to qemuCheckCCWS390AddressSupport for
the purpose of reporting an error message without actually checking
that the rng device is of type VIR_DOMAIN_RNG_BACKEND_RANDOM.

Change it to a hardcoded "rng" string, which also avoids
referring to the device by a host-side attribute.

After a successful attach, the device address has already been set.
Remove the pointless assignment.

There is one limitation for using this API, when the guest is started
with all actions set to "destroy" we put "-no-reboot" on the QEMU
command line.  That cannot be changed while QEMU is running and
the QEMU process is always terminated no matter what is configured
for any action.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1460677Reviewed-by: NJohn Ferlan <jferlan@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

We need to send allowReboot in the migration cookie to ensure the same
behavior of the virDomainSetLifecycleAction() API on the destination.

Consider this scenario:

    1. On the source the domain is started with:
        <on_poweroff>destroy</on_poweroff>
        <on_reboot>restart</on_reboot>
        <on_crash>destroy</on_crash>

    2. User calls an API to set "destroy" for <on_reboot>:
        <on_poweroff>destroy</on_poweroff>
        <on_reboot>destroy</on_reboot>
        <on_crash>destroy</on_crash>

    3. The guest is migrated to a different host

    4a. Without the allowReboot in the migration cookie the QEMU
        process on destination would be started with -no-reboot
        which would prevent using the virDomainSetLifecycleAction() API
        for the rest of the guest lifetime.

    4b. With the allowReboot in the migration cookie the QEMU process
        on destination is started without -no-reboot like it was started
        on the source host and the virDomainSetLifecycleAction() API
        continues to work.

The following patch adds a QEMU implementation of the
virDomainSetLifecycleAction() API and that implementation disallows
using the API if all actions are set to "destroy" because we add
"-no-reboot" on the QEMU command line.  Changing the lifecycle action
is in this case pointless because the QEMU process is always terminated.
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

This will be used later on in implementation of new API
virDomainSetLifecycleAction().  In order to use it, we need to store
the value in status XML to not lose the information if libvirtd is
restarted.

If some guest was started by old libvirt where it was not possible
to change the lifecycle action for running guest, we can safely
detect it based on the current actions from the status XML.
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

Reviewed-by: NJohn Ferlan <jferlan@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

Reviewed-by: NJohn Ferlan <jferlan@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

Reviewed-by: NJohn Ferlan <jferlan@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

Reviewed-by: NJohn Ferlan <jferlan@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

Extract the required data inside a function instead of passing it
all as arguments.
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

There is no need to have two different enums where one has the same
values as the other one with some additions.

Currently for on_poweroff and on_reboot we allow only subset of actions
that are allowed for on_crash.  This was covered in parse time using
two different enums.  Now to make sure that we don't allow setting
actions that are not supported we need to check it while validating
domain config.
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

Reviewed-by: NJohn Ferlan <jferlan@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

So we have a syntax-check rule to catch all tab indents but it naturally
can't catch tab spacing, i.e. as a delimiter. This patch is a result of
running 'vim -en +retab +wq'
(using tabstop=8 softtabstop=4 shiftwidth=4 expandtab) on each file from
a list generated by the following:
find . -regextype gnu-awk \
         -regex ".*\.(rng|syms|html|s?[ch]|py|pl|php(\.code)?)(\.in)?" \
         | xargs git grep -lP "\t"
Signed-off-by: NErik Skultety <eskultet@redhat.com>

qemuBlockStorageSourceGetBackendProps now is able to format the JSON
definition for regular storage too.

The file object is needed when formatting the command line, but it makes
nesting of the objects less easy for use with blockdev. Separate the
wrapping into the 'file' object into a helper used specifically for disk
sources in the old code path.

Move qemuFreeKeywords into qemu_parse_command.c as
qemuParseKeywordsFree and call it rather than inline code
in multiple places.
Signed-off-by: NKothapally Madhu Pavan <kmp@linux.vnet.ibm.com>

Even though only family and model are used for matching CPUID data with
CPU models from cpu_map.xml, stepping is used by x86DataFilterTSX which
is supposed to disable TSX on CPU models with broken TSX support. Thus
we need to start parsing stepping from QEMU to make sure we don't
disable TSX on CPUs which provide working TSX implementation. See the
following patch for a real world example of such CPU.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>