Commit Graph

1029 Commits

Author SHA1 Message Date
Brijesh Singh
e5791a0306 conf: Introduce launch-security element in domain
The launch-security element can be used to define the security
model to use when launching a domain. Currently we support 'sev'.

When 'sev' is used, the VM will be launched with AMD SEV feature enabled.
SEV feature supports running encrypted VM under the control of KVM.
Encrypted VMs have their pages (code and data) secured such that only the
guest itself has access to the unencrypted version. Each encrypted VM is
associated with a unique encryption key; if its data is accessed to a
different entity using a different key the encrypted guests data will be
incorrectly decrypted, leading to unintelligible data.

Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-06-12 10:00:49 +02:00
Martin Kletzander
1bd5a08d38 conf, schema, docs: Add support for TSEG size setting
TSEG (Top of Memory Segment) is one of many regions that SMM (System Management
Mode) can occupy.  This one, however is special, because a) most of the SMM code
lives in TSEG nowadays and b) QEMU just (well, some time ago) added support for
so called 'extended' TSEG.  The difference to the TSEG implemented in real q35's
MCH (Memory Controller Hub) is that it can offer one extra size to the guest OS
apart from the standard TSEG's 1, 2, and 8 MiB and that size can be selected in
1 MiB increments.  Maximum may vary based on QEMU and is way too big, so we
don't need to check for the maximum here.  Similarly to the memory size we'll
leave it to the hypervisor to try satisfying that and giving us an error message
in case it is not possible.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-08 10:28:46 +02:00
Daniel P. Berrangé
ed29219f21 Don't use enums in TPM struct fields
When using an enum in a struct field, the compiler is free to decide to
make it an unsigned type if it desires. This in turn leads to bugs when
code does

    if ((def->foo = virDomainFooTypeFromString(str)) < 0)
       ...

because 'def->foo' can't technically have an unsigned value from the
compiler's POV. While it is possible to add (int) casts in the code
example above, this is not desirable because it is easy to miss out
such casts. eg the code fixed here caused an error with clang builds

../../src/conf/domain_conf.c:12838:73: error: comparison of unsigned enum expression < 0 is always false [-Werror,-Wtautological-compare]
        if ((def->version = virDomainTPMVersionTypeFromString(version)) < 0) {
            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-06-06 17:46:31 +01:00
Stefan Berger
8737578d11 conf: Add support for choosing emulation of a TPM 2.0
This patch extends the TPM's device XML with TPM 2.0 support. This only works
for the emulator type backend and looks as follows:

    <tpm model='tpm-tis'>
      <backend type='emulator' version='2.0'/>
    </tpm>

The swtpm process now has --tpm2 as an additional parameter:

system_u:system_r:svirt_t:s0:c597,c632 tss 18477 11.8  0.0 28364  3868 ?        Rs   11:13  13:50 /usr/bin/swtpm socket --daemon --ctrl type=unixio,path=/var/run/libvirt/qemu/swtpm/testvm-swtpm.sock,mode=0660 --tpmstate dir=/var/lib/libvirt/swtpm/testvm/tpm2,mode=0640 --log file=/var/log/swtpm/libvirt/qemu/testvm-swtpm.log --tpm2 --pid file=/var/run/libvirt/qemu/swtpm/testvm-swtpm.pid

The version of the TPM can be changed and the state of the TPM is preserved.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-06 10:48:41 -04:00
Stefan Berger
33af0b2b7c conf: Add support for external swtpm TPM emulator to domain XML
This patch adds support for an external swtpm TPM emulator. The XML for
this type of TPM looks as follows:

 <tpm model='tpm-tis'>
   <backend type='emulator'/>
 </tpm>

The XML will currently only define a TPM 1.2.

Extend the documentation.

Add a test case testing the XML parser and formatter.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-06 10:48:41 -04:00
Ján Tomko
0b9d4970b4 conf: introduce virDomainVsockDefEquals
Introduce a function for comparing two vsock definitions.

https://bugzilla.redhat.com/show_bug.cgi?id=1291851

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-06-05 07:51:18 +02:00
Ján Tomko
d4abb7b45d conf: introduce <vsock> element
Add a new 'vsock' element for the vsock device.
The 'model' attribute is optional.
A <source cid> subelement should be used to specify the guest cid,
or <source auto='yes'/> should be used.

https://bugzilla.redhat.com/show_bug.cgi?id=1291851

Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-05-29 15:42:03 +02:00
Ján Tomko
c20bb30e8d conf: add privateData to virDomainVsockDef
An object for storing driver-specific data in the vsock definition.

https://bugzilla.redhat.com/show_bug.cgi?id=1291851
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-05-29 15:42:03 +02:00
Ján Tomko
3858da2a14 Introduce virDomainVsockDef
A type to represent the new vsock device.
Also implement an allocation function to allow future addition
of private data.

https://bugzilla.redhat.com/show_bug.cgi?id=1291851

Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-05-29 15:42:03 +02:00
Peter Krempa
ac6f736ed1 conf: domain: Allow passing in 'parseOpaque' for post-parse of status XML
The status XML parser function virDomainObjParseXML could not pass in
parseOpaque into the post parse callbacks. Add a callback which will
allow hypervisor drivers to fill it from the 'virDomainObj' data.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
2018-05-29 10:23:24 +02:00
Ján Tomko
8e5e5a95a5 vmx: add VIR_DOMAIN_DEF_FEATURE_NO_BOOT_ORDER
Further patches will introduce validation and a default setting
of def->os.bootDevs in postParse.

Introduce a feature flag to opt out of this and set it in the vmx
driver, otherwise we would be adding it <boot dev='hd'/> into every
vmx config despite having no way to change it.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-05-29 10:09:32 +02:00
John Ferlan
b50efe97ad conf: Add VM Generation ID parse/format support
The VM Generation ID is a mechanism to provide a unique 128-bit,
cryptographically random, and integer value identifier known as
the GUID (Globally Unique Identifier) to the guest OS. The value
is used to help notify the guest operating system when the virtual
machine is executed with a different configuration.

This patch adds support for a new "genid" XML element similar to
the "uuid" element. The "genid" element can have two forms "<genid/>"
or "<genid>$GUID</genid>". If the $GUID is not provided, libvirt
will generate one and save it in the XML.

Since adding support for a generated GUID (or UUID like) value to
be displayed modifying the xml2xml test to include virrandommock.so
is necessary since it will generate a "known" value.

Signed-off-by: John Ferlan <jferlan@redhat.com>
ACKed-by: Michal Privoznik <mprivozn@redhat.com>
2018-05-25 08:04:34 -04:00
Peter Krempa
082266bf27 conf: domain: Export virDomainStorageSourceParse
It will be used when parsing the migration private data.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-05-23 13:18:23 +02:00
Filip Alac
fcb53e8ee1 conf: Introduce codec type 'output'
Introduce support for codec type 'output' ('hda-output' in QEMU) for ich6
and ich9 sound devices, which only advertises a line-out in the guest.
This has been available in QEMU since 0.14.

Signed-off-by: Filip Alac <filipalac@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-05-23 09:51:53 +02:00
Peter Krempa
26c72a76dc conf: domain: Add helper to check whether a domain def requires use of PR
Extract the lookup code so that it can be reused later.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
2018-05-16 06:32:29 +02:00
Maciej Wolny
fff9e25a2b conf: Add gl property to graphics of type sdl in domain config
Support OpenGL accelerated rendering when using SDL graphics in the
domain config. Add associated test and documentation.

Signed-off-by: Maciej Wolny <maciej.wolny@codethink.co.uk>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-05-15 16:50:38 -04:00
Michal Privoznik
2300c92fe0 conf: Introduce memoryBacking/discard
QEMU has possibility to call madvise(.., MADV_REMOVE) in some
cases. Expose this feature to users by new element/attribute
discard.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-05-14 09:42:20 +02:00
Daniel P. Berrangé
d60896321b nwfilter: remove virNWFilterHashTable typedefs entirely
All the code now just uses the virHashTablePtr type directly.

Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-05-03 17:00:57 +01:00
Stefan Berger
fead27f4b3 conf: Enable TPM CRB interface in the domain XML
Enable the TPM CRB to be specified in the domain XML. This
now allows to describe the TPM device like this:

  <tpm model='tpm-crb'>
    <backend type='passthrough'>
      <device path='/dev/tpm0'/>
    </backend>
  </tpm>

Extend the XML schema to also allow tpm-crb.
Extend the documentation.
Add a test case for testing the XML parser and formatter.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-05-03 11:28:42 -04:00
Ján Tomko
bf70a48e22 conf: remove unused VIR_DOMAIN_FS_RAM_DEFAULT_USAGE
Unused since its introduction in commit <76b644c>.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-05-02 16:03:00 +02:00
Peter Krempa
4fdcf67a63 conf: Move 'driverName' back to disk definition structure
Currently it is not used in backing chains and does not seem that we
will need to use it so return it back to the disk definition. Thankfully
most accesses are done via the accessors.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
2018-04-18 16:19:12 +02:00
Peter Krempa
97a467b3c4 conf: Make argument of virDomainDiskGetDriver const
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
2018-04-18 16:10:39 +02:00
Clementine Hayat
749282d400 Add function that raises error if domain is not active
Add a function named virDomainObjCheckIsActive in src/conf/domain_conf.c.
It calls virDomainObjIsActive, raises error if necessary and returns.

There is a lot of occurence of this pattern and it will save 3 lines on
each call.

Signed-off-by: Clementine Hayat <clem@lse.epita.fr>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-04-18 10:22:07 +02:00
Michal Privoznik
f574e2e521 conf: Actually make virDomainChrSourceDef an object
In 2ada9ef146 we've tried to turn virDomainChrSourceDef into
virObject. Well, this requires 'virObject' member to be stored on
the first position of the struct. This adjustment is missing in
the original commit leading to all sorts of funny memleaks and
data corruptions.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
2018-04-12 12:44:36 +02:00
John Ferlan
9e792d1aaa qemu: Use virDomainChrSourceDefNew for monConfig
Rather than VIR_ALLOC, use the New function for allocation. We
already use the Free function anyway.

Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
2018-04-10 08:11:09 -04:00
Andrea Bolognani
542f05e775 qemu: Implement pcie-to-pci-bridge controller
The new controller will not yet be used automatically by
libvirt, but at this point it's already possible to configure
a guest to use it.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-04-06 14:12:17 +02:00
Peter Krempa
8fc5e5bfdc conf: Extract logic for updating 'detect_zeroes' mode
For some reason we've decided to silently translate the disk
detect_zeroes mode if it would be invalid. Extract the
logic so that it does not need to be copypasta'd across the code base.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
2018-04-03 15:48:37 +02:00
Peter Krempa
295b128e09 conf: Refactor/rename virDomainDiskDefSourceParse
Make the function more usable by returning the full disk definition and
fix the only caller for the new semantics. The new name for the function
is virDomainDiskDefParse.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
2018-04-03 15:48:37 +02:00
Peter Krempa
c4e7c1f212 conf: disk: Separate virStorageSource formatting
Move out formatting of 'startuPolicy' which is a property of the disk
out of the <source> element. Extracting the code formating the content
and attributes will also allow reuse in other parts of the code.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
2018-03-14 12:19:44 +01:00
Ján Tomko
c8ab5aeb14 Adjust whitespace in virDomainDefHasUSB prototype
To match the rest of the file.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-03-13 10:31:56 +01:00
Ján Tomko
1cdc9ecebd qemu: report a nicer error when USB is disabled
If the user tries to define a domain that has

  <controller type='usb' model='none'/>

and also some USB devices, we report an error:
  error: internal error: No free USB ports

Which is technically still correct for a domain with no USB ports.

Change it to:

USB is disabled for this domain, but USB devices are present in the domain XML

https://bugzilla.redhat.com/show_bug.cgi?id=1347550
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-03-07 14:10:46 +01:00
Andrea Bolognani
11819aee65 conf: Assign explicit value to VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_NONE
Pretty much any reasonable compiler would do this automatically,
but there's no harm in being explicit about it.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
2018-03-05 17:29:40 +01:00
Jiri Denemark
b6a264e855 Pass oldDev to virDomainDefCompatibleDevice on device update
When calling virDomainDefCompatibleDevice to check a new device during
device update, we need to pass the original device which is going to be
updated in addition to the new device. Otherwise, the function can
report false conflicts.

The new argument is currently ignored by virDomainDefCompatibleDevice,
but this will change in the following patch.

https://bugzilla.redhat.com/show_bug.cgi?id=1546971

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2018-02-23 11:52:44 +01:00
Daniel P. Berrangé
a302480dcb conf: add enum constants for default controller models
The controller model is slightly unusual in that the default value is
-1, not 0. As a result the default value is not covered by any of the
existing enum cases. This in turn means that any switch() statements
that think they have covered all cases, will in fact not match the
default value at all. In the qemuDomainDeviceCalculatePCIConnectFlags()
method this has caused a serious mistake where we fallthrough from the
SCSI controller case, to the VirtioSerial controller case, and from
the USB controller case to the IDE controller case.

By adding explicit enum constant starting at -1, we can ensure switches
remember to handle the default case.

Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-02-20 14:58:39 +00:00
Laine Stump
e62cb4a9b7 conf: move 'generated' member from virMacAddr to virDomainNetDef
Commit 7e62c4cd26 (first appearing in libvirt-3.9.0 as a resolution
to rhbz #1343919) added a "generated" attribute to virMacAddr that was
set whenever a mac address was auto-generated by libvirt. This
knowledge was used in a single place - when trying to match a NetDef
from the Domain to Delete with user-provided XML. Since the XML parser
always auto-generates a MAC address for NetDefs when none is provided,
it was previously impossible to make a search where the MAC address
isn't significant, but the addition of the "generated" attribute made
it possible for the search function to ignore auto-generated MACs.

This implementation had a problem though - it was adding a field to a
"low level" struct - virMacAddr - which is used in other places with
the assumption that it contains exactly a 6 byte MAC address and
nothing else. In particular, virNWFilterSnoopEthHdr uses virMacAddr as
part of the definition of an ethernet packet header, whose layout must
of course match an actual ethernet packet. Adding the extra bools into
virNWFilterSnoopEthHdr caused the nwfilter driver's "IP discovery via
DHCP packet snooping" functionality to mysteriously stop working.

In order to fix that behavior, and prevent potential future similar
odd behavior, this patch moves the "generated" member out of
virMacAddr (so that it is again really is just a MAC address) into
virDomainNetDef, and sets it only when virDomainNetGenerateMAC() is
called from virDomainNetDefParseXML() (which is the only time we care
about it).

Resolves: https://bugzilla.redhat.com/1529338

(It should also be applied to any maintenance branch that applies
commit 7e62c4cd26 and friends to resolve
https://bugzilla.redhat.com/1343919)

Signed-off-by: Laine Stump <laine@laine.org>
2018-02-19 13:15:00 -05:00
Daniel P. Berrangé
2d43f0a2dc conf: stop passing virConnectPtr into virDomainDiskTranslateSourcePool
Rather than expecting callers to pass a virConnectPtr into the
virDomainDiskTranslateSourcePool() method, just acquire a connection
to the storage driver when needed.

Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-02-19 11:11:47 +00:00
Daniel P. Berrangé
0c63c117a2 conf: reimplement virDomainNetResolveActualType in terms of public API
Now that we have the ability to easily open connections to secondary
drivers, eg network:///system,  it is possible to reimplement the
virDomainNetResolveActualType method in terms of the public API. This
avoids the need to have the network driver provide a callback for it.

Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-02-19 11:11:46 +00:00
Andrea Bolognani
3dd1eb3b26 conf: Improve HPT feature handling
Instead of storing separately whether the feature is enabled
or not and what resizing policy should be used, store both of
them in a single place.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-02-13 14:40:09 +01:00
Andrea Bolognani
c5a451ef21 conf: Improve IOAPIC feature handling
Instead of storing separately whether the feature is enabled
or not and what driver should be used, store both of them in
a single place.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-02-13 14:40:06 +01:00
Daniel P. Berrangé
fee840cc96 conf: move virStorageTranslateDiskSourcePool into domain conf
The virStorageTranslateDiskSourcePool method modifies a virDomainDiskDef
to resolve any storage pool reference. For some reason this was added
into the storage driver code, despite working entirely in terms of the
public APIs. Move it into the domain conf file and rename it to match the
object it modifies.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-02-09 11:05:10 +00:00
Daniel P. Berrangé
a455d41e3e conf: expand network device callbacks to cover resolving NIC type
Currently the QEMU driver will call directly into the network driver
impl to modify resolve the atual type of NICs with type=network. It
has todo this before it has allocated the actual NIC. This introduces
a callback system to allow us to decouple the QEMU driver from the
network driver.

This is a short term step, as it ought to be possible to achieve the
same end goal by simply querying XML via the public network API. The
QEMU code in question though, has no virConnectPtr conveniently
available at this time.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-02-09 11:05:10 +00:00
Daniel P. Berrangé
1438aea4ee conf: expand network device callbacks to cover bandwidth updates
Currently the QEMU driver will call directly into the network driver
impl to modify network device bandwidth for interfaces with
type=network. This introduces a callback system to allow us to decouple
the QEMU driver from the network driver.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-02-09 11:05:10 +00:00
Daniel P. Berrangé
5b13570ab8 conf: introduce callback registration for domain net device allocation
Currently virt drivers will call directly into the network driver impl
to allocate domain interface devices where type=network. This introduces
a callback system to allow us to decouple the virt drivers from the
network driver.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-02-09 11:05:10 +00:00
Shivaprasad G Bhat
792c6d8a68 virt-aa-helper: Set the supported features
The virt-aa-helper fails to parse the xmls with the memory/cpu
hotplug features or user assigned aliases. Set the features in
xmlopt->config for the parsing to succeed.

Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Tested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Reviewed-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
2018-02-06 15:12:21 +01:00
John Ferlan
932862b8bf conf: Rework and rename virDomainDeviceFindControllerModel
As it turns out virDomainDeviceFindControllerModel was only ever
called for SCSI controllers using VIR_DOMAIN_CONTROLLER_TYPE_SCSI
as a parameter.

So rename to virDomainDeviceFindSCSIController and rather than
return a model, let's return a virDomainControllerDefPtr to let
the caller reference whatever it wants.
2018-01-31 11:32:04 -05:00
Martin Kletzander
7387e3fea4 conf: Add support for cputune/cachetune
More info in the documentation, this is basically the XML parsing/formatting
support, schemas, tests and documentation for the new cputune/cachetune element
that will get used by following patches.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2018-01-25 17:16:08 +01:00
Peter Krempa
aed3d038a6 conf: Add infrastructure for disk source private data XML
VM drivers may need to store additional private data to the status XML
so that it can be restored after libvirtd restart. Since not everything
is needed add a callback infrastructure, where VM drivers can add only
stuff they need.

Note that the private data is formatted as a <privateData> sub-element
of the <disk> or <backingStore> <source> sub-element. This is done since
storing it out of band (in the VM private data) would require a complex
matching process to allow to put the data into correct place.
2017-12-14 10:24:36 +01:00
Ján Tomko
309cd46b40 Introduce virDomainDeviceAliasIsUserAlias
Allow parts of code outside domain_conf to decide whether the alias
is user-specified or not.
2017-11-30 16:48:58 +01:00
Pino Toscano
21332bf658 conf: add VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_SCLP
Introduce specific a target types with two models for the console
devices (sclp and sclplm) used in s390 and s390x guests, so isa-serial
is no more used for them.

This makes <serial> usable on s390 and s390x guests, with at most only
a single sclpconsole and one sclplmconsole devices usable in a single
guest (due to limitations in QEMU, which will enforce already at
runtime).

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1449265

Signed-off-by: Pino Toscano <ptoscano@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2017-11-28 15:46:34 +01:00
Andrea Bolognani
eccdcb81fc conf: Add target type and model for pl011
We can finally introduce a specific target model for the pl011 device
used by mach-virt guests, which means isa-serial will no longer show
up to confuse users.

We make sure migration works in both directions by interpreting the
isa-serial target type, or the lack of target type, appropriately
when parsing the guest XML, and skipping the newly-introduced type
when formatting if for migration. We also verify that pl011 is not
used for non-mach-virt guests and add a bunch of test cases.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=151292

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2017-11-28 15:46:34 +01:00
Andrea Bolognani
c498a8921e conf: Add target type and model for spapr-vty
We can finally introduce a specific target model for the spapr-vty
device used by pSeries guests, which means isa-serial will no longer
show up to confuse users.

We make sure migration works in both directions by interpreting the
isa-serial target type, or the lack of target type, appropriately
when parsing the guest XML, and skipping the newly-introduced type
when formatting if for migration. We also verify that spapr-vty is
not used for non-pSeries guests and add a bunch of test cases.

This commit is best viewed with 'git show -w'.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1511421

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2017-11-28 15:46:33 +01:00
Andrea Bolognani
5ad9d9afd4 conf: Parse and format virDomainChrSerialTargetModel
This information will be used to select, and store in the guest
configuration in order to guarantee ABI stability, the concrete
(hypervisor-specific) model for serial devices.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2017-11-28 15:46:33 +01:00
Andrea Bolognani
4fb8ff9987 conf: Drop virDomainChrDeviceType.targetTypeAttr
This attribute was used to decide whether to format the type
attribute of the <target> element, but the logic didn't take into
account all possible cases and as such could lead to unexpected
results. Moreover, it's one more thing to keep track of, and can
easily fall out of sync with other attributes.

Now that we have VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_NONE, we can
use that value to signal that no specific target type has been
configured for the serial device and as such the attribute should
not be formatted at all. All other values are now formatted.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2017-11-28 15:46:32 +01:00
Andrea Bolognani
6385c8c142 conf: Introduce VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_NONE
This is the first step in getting rid of the assumption that
isa-serial is the default target type for serial devices.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2017-11-28 15:46:32 +01:00
John Ferlan
1d9108cf16 qemu: Remove private hostdev
Since it's not longer used to shuttle the @secinfo, let's remove
the private hostdev completely.
2017-11-24 11:47:26 -05:00
John Ferlan
626ea2d596 conf,qemu: Replace iscsisrc fields with virStorageSourcePtr
Rather than picking apart the two pieces we need/want (path, hosts,
and auth)- let's allocate/use a virStorageSourcePtr for iSCSI storage.

The end result is that qemuBuildSCSIiSCSIHostdevDrvStr doesn't need
to "fake" one for the qemuBuildNetworkDriveStr call.
2017-11-24 11:47:26 -05:00
Ján Tomko
cbf4242db7 Introduce virDomainInputDefGetPath
Use it to denadify qemuDomainSetupInput.
2017-11-24 17:38:51 +01:00
Marc-André Lureau
7e4177a35b qemu: add vmcoreinfo support
Starting from qemu 2.11, the `-device vmcoreinfo` will create a fw_cfg
entry for a guest to store dump details, necessary to process kernel
dump with KASLR enabled and providing additional kernel details.

In essence, it is similar to -fw_cfg name=etc/vmcoreinfo,file=X but in
this case it is not backed by a file, but collected by QEMU itself.

Since the device is a singleton and shouldn't use additional hardware
resources, it is presented as a <feature> element in the libvirt
domain XML.

The device is arm/x86 only for now (targets that support fw_cfg+dma).

Related to:
https://bugzilla.redhat.com/show_bug.cgi?id=1395248

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-11-18 10:45:10 +01:00
Pavel Hrdina
b98add7571 qemu: taint domain if virDomainQemuAgentCommand API is used
This is similar to the virDomainQemuMonitorCommand API, it can change
the domain state in a way that libvirt may not understand.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-11-16 14:58:01 +01:00
Andrea Bolognani
85b2ae96df qemu: Enable configuration of HPT resizing for pSeries guests
Most of the time it's okay to leave this up to negotiation between
the guest and the host, but in some situations it can be useful to
manually decide the behavior, especially to enforce its availability.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1308743

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-11-14 16:29:55 +01:00
Michal Privoznik
fe70fd0c10 conf: s/virDomainObjGetShortName/virDomainDefGetShortName/
This function works over domain definition and not domain object.
Its name is thus misleading.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-11-07 13:43:00 +01:00
Jiri Denemark
bce925dada conf: Don't inline virDomainNetTypeSharesHostView
When coverage build is enabled, gcc complains about it:

In file included from qemu/qemu_agent.h:29:0,
                 from qemu/qemu_driver.c:47:
qemu/qemu_driver.c: In function 'qemuDomainSetInterfaceParameters':
./conf/domain_conf.h:3397:1: error: inlining failed in call to
'virDomainNetTypeSharesHostView': call is unlikely and code size would
grow [-Werror=inline]
 virDomainNetTypeSharesHostView(const virDomainNetDef *net)
 ^

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-11-06 10:58:46 +01:00
Dawid Zamirski
1ed22398c3 domain: Allow 'model' attribute for ide controller
The optional values are 'piix3', 'piix4' or 'ich6'. Those will be
needed to allow setting IDE controller model in VirtualBox driver.
2017-11-03 13:15:54 -04:00
Michal Privoznik
e2797e3256 conf: Validate user supplied aliases
They have to be unique within the domain. As usual, backwards
compatibility takes its price. In this particular situation we
have a device that is represented twice in a domain and so is its
alias.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2017-10-23 08:52:01 +02:00
Michal Privoznik
c14f1ed206 conf: Parse user supplied aliases
If driver that is calling the parse supports user supplied
aliases, they can be parsed even for inactive XMLs. However, to
avoid any clashes with aliases that libvirt generates, the user
ones have to have "ua-" prefix.

Note, that some drivers don't have notion of device aliases at
all. Also, in order to support user supplied aliases some extra
checks need to be done (e.g. during hotplug). Therefore we can't
just enable this feature for all the drivers. Thus we need a flag
that drivers set to tell parsing code that they can handle user
supplied device aliases.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2017-10-22 13:49:46 +02:00
Ján Tomko
513a8d4588 qemu: allow cold unplugging of input devices
https://bugzilla.redhat.com/show_bug.cgi?id=1379603
2017-10-19 14:42:10 +02:00
Pavel Hrdina
d66fc71d31 qemu: implement virDomainSetLifecycleAction() API
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=1460677

Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-10-19 11:52:38 +02:00
Pavel Hrdina
1a2f34e363 lib: introduce virDomainSetLifecycleAction() API
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-10-19 11:52:26 +02:00
Pavel Hrdina
8c85b1ed4a conf: merge virDomainLifecycleCrashAction with virDomainLifecycleAction
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: John Ferlan <jferlan@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-10-19 11:52:09 +02:00
Pavel Hrdina
1ccf35b4f2 conf: introduce virDomainLifecycle enum to list all lifecycle types
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-10-19 11:52:06 +02:00
Pavel Hrdina
55c63295b2 conf: rename virDomainLifecycleAction enum functions
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-10-19 11:52:04 +02:00
Pavel Hrdina
21068580d6 conf: rename lifecycle enum values to correspond with typedef keyword
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-10-19 11:51:53 +02:00
Michal Privoznik
d86fd2402e virNetDevTapInterfaceStats: Allow caller to not swap the statistics
https://bugzilla.redhat.com/show_bug.cgi?id=1497410

The comment in virNetDevTapInterfaceStats() implementation for
Linux states that packets transmitted by domain are received by
the host and vice versa. Well, this is true but not for all types
of interfaces. For instance, for macvtaps when TAP device is
hooked right onto a physical device any packet that domain sends
looks also like a packet sent to the host. Therefore, we should
allow caller to chose if the stats returned should be straight
copy or swapped.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-10-05 09:16:05 +02:00
Michal Privoznik
784742c762 conf: Introduce virDomainNetFindByName
Small wrapper to lookup interface in domain definition by its
name.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-10-05 09:16:05 +02:00
Lin Ma
abca72faa4 qemu: Support multiqueue virtio-blk
qemu 2.7.0 introduces multiqueue virtio-blk(commit 2f27059).
This patch introduces a new attribute "queues". An example of
the XML:

<disk type='file' device='disk'>
  <driver name='qemu' type='qcow2' queues='4'/>

The corresponding QEMU command line:

-device virtio-blk-pci,scsi=off,num-queues=4,id=virtio-disk0

Signed-off-by: Lin Ma <lma@suse.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2017-10-04 17:50:53 +02:00
Ashish Mittal
f170548502 util: Add TLS attributes to virStorageSource
Add an optional virTristateBool haveTLS to virStorageSource to
manage whether a storage source will be using TLS.

Sample XML for a VxHS disk:

<disk type='network' device='disk'>
  <driver name='qemu' type='raw' cache='none'/>
  <source protocol='vxhs' name='eb90327c-8302-4725-9e1b-4e85ed4dc251' tls='yes'>
    <host name='192.168.0.1' port='9999'/>
  </source>
  <target dev='vda' bus='virtio'/>
</disk>

Additionally add a tlsFromConfig boolean to control whether the TLS
setting was due to domain configuration or qemu.conf global setting
in order to decide whether to Format the haveTLS setting for either
a live or saved domain configuration file.

Update the qemuxml2xmltest in order to add a test to show the proper
parsing.

Also update the docs to describe the tls attribute.

Signed-off-by: Ashish Mittal <Ashish.Mittal@veritas.com>
Signed-off-by: John Ferlan <jferlan@redhat.com>
2017-09-28 09:45:14 -04:00
Jiri Denemark
43a90eb7e8 conf: Drop unused VIR_DOMAIN_DEF_FORMAT_UPDATE_CPU
The only real usage of this flag was removed by "cpu_conf: Drop
updateCPU from virCPUDefFormat".

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-09-21 15:27:25 +02:00
Michal Privoznik
c57f3fd2f8 conf: Validate device on update-device
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>
2017-09-06 11:19:30 +02:00
Cole Robinson
a2ca7ca52e conf: domain: add VIDEO_TYPE_DEFAULT
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>
2017-09-05 10:41:32 -04:00
Pavel Hrdina
9aa72a6dd5 conf: introduce reconnect element for chardev source
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-29 10:30:05 +02:00
Cole Robinson
ac87932ee3 conf: add virDomainVideoDefNew
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>
2017-08-27 09:38:12 -04:00
Pavel Hrdina
f2be5b38f0 conf: move chardev protocol parsing to separate function
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>
2017-08-22 17:43:51 +02:00
Peter Krempa
7c5cf4983c conf: add infrastructure for tolerating certain post parse callback failures
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.
2017-08-18 15:07:44 +02:00
Peter Krempa
e168bc8a72 conf: Add callbacks that allocate per-def private data
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.
2017-08-18 15:07:44 +02:00
Peter Krempa
2f19c9325e conf: Add 'basic' post parse callback
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.
2017-08-18 15:07:44 +02:00
Michal Privoznik
2074ef6cd4 Add support for virtio-net.tx_queue_size
https://bugzilla.redhat.com/show_bug.cgi?id=1462653

Just like I've added support for setting rx_queue_size (in
c56cdf259 and friends), qemu just gained support for setting tx
ring size.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2017-08-02 15:37:09 +02:00
Martin Kletzander
eaf2c9f891 Move machineName generation from virsystemd into domain_conf
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>
2017-07-25 17:02:27 +02:00
Martin Kletzander
6e6faf6d62 conf: Pass config.priv to xmlopt->privateData.alloc
This will help us to get to some data more easily.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2017-07-25 17:02:27 +02:00
Andrea Bolognani
bbda2883c4 conf: Rename virDomainControllerIsPCIHostBridge() to IsPSeriesPHB()
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>
2017-07-25 09:42:38 +02:00
Andrea Bolognani
66fa0d969a conf: Move some virDomainDeviceInfo functions
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>
2017-07-21 17:18:40 +02:00
Andrea Bolognani
1d0c6f59b6 conf: Rename virDomainHostdevDefAlloc() to virDomainHostdevDefNew()
All other virDomain*Def follow this naming convention for
their allocation function.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2017-07-21 17:03:43 +02:00
Andrea Bolognani
6e42d83f7c qemu: Automatically pick target index and model for pci-root controllers
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>
2017-07-15 14:50:42 +02:00
Andrea Bolognani
47dd6e282a conf: Parse and format <target index='...'/>
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
2017-07-15 14:50:42 +02:00
Andrea Bolognani
90855eca3f conf: Add 'spapr-pci-host-bridge' controller model
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>
2017-07-15 14:50:42 +02:00
Michal Privoznik
37ef8763c4 conf: Rename and expose virDomainChrSourceDefPath
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>
2017-07-11 14:45:15 +02:00
Cédric Bosdonnat
426929aea9 lxc: add possibility to define init uid/gid
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>
2017-07-11 10:41:24 +02:00
Cédric Bosdonnat
552f7c139a lxc: allow user to specify command working directory
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>
2017-07-11 10:41:24 +02:00
Cédric Bosdonnat
25630a3735 lxc: allow defining environment variables
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>
2017-07-11 10:41:23 +02:00
Roman Bogorodskiy
78fc843c7b bhyve: add vga configuration for video driver
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>
2017-06-27 17:44:27 +04:00
Pavel Hrdina
1763a2e7e2 conf: move seclabel for chardev source to the correct sturcture
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-06-16 15:42:59 +02:00