Commit bc6d3121a was far too terse when describing the new
elements, attributes, and allow values. Provide a few more
words to help describe.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
None of the existing models is suitable for use with
RISC-V virt guests, and we don't want information about
the serial console to be missing from the XML.
The name is based on comments in qemu/hw/riscv/virt.c:
RISC-V machine with 16550a UART and VirtIO MMIO
and in qemu/hw/char/serial.c:
QEMU 16550A UART emulation
along with the output of dmesg in the guest:
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
10000000.uart: ttyS0 at MMIO 0x10000000 (irq = 13,
base_baud= 230400) is a 16550A
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Similarly to backing store indexes which will become stable eventually
we need also to be able to format and store in the status XML for later
use the index for the top level of the backing chain.
Add XML formatter, parser, schema and docs.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Qemu-3.0 supports Hyper-V-style PV TLB flush, Windows guests can benefit
from this feature as KVM knows which vCPUs are not currently scheduled (and
thus don't require any immediate action).
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Qemu-3.0 supports so-called 'Reenlightenment' notifications and this (in
conjunction with 'hv-frequencies') can be used make Hyper-V on KVM pass
stable TSC page clocksource to L2 guests.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Qemu-2.12 gained 'hv-frequencies' cpu flag to enable Hyper-V frequency
MSRs. These MSRs are required (but not sufficient) to make Hyper-V on
KVM pass stable TSC page clocksource to L2 guests.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Introduce a new section memorytune to support memory bandwidth allocation.
This is consistent with existing cachetune. As the example:
below:
<cputune>
......
<memorytune vcpus='0'>
<node id='0' bandwidth='30'/>
</memorytune>
</cputune>
vpus --- vpus subjected to this memory bandwidth.
id --- on which node memory bandwidth to be set.
bandwidth --- the memory bandwidth percent to set.
Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Validate that the provided XML shmem name is not directory specific to "." or
".." as well as ensure that there is no path separator '/' in the name.
https://bugzilla.redhat.com/show_bug.cgi?id=1192400
Signed-off-by: Simon Kobyda <skobyda@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Multiple cputune elements specified microseconds as the unit
without putting a space before the parenthesis.
There were also other occurrences.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Historically, we've always enabled an emulated video device every time we
see that graphics should be supported with a guest. With the appearance
of mediated devices which can support QEMU's vfio-display capability,
users might want to use such a device as the only video device.
Therefore introduce a new, effectively a 'disable', type for video
device.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Currently it reads:
Refer MDEV to create a mediated device on the host
...even though it resembles English, it's not a proper English.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
QEMU 2.12 introduced a new type of display for mediated devices using
vfio-pci backend which allows a mediated device to be used as a VGA
compatible device as an alternative to an emulated video device. QEMU
exposes this feature via a vfio device property 'display' with supported
values 'on/off/auto' (libvirt will default to 'off').
This patch adds the necessary bits to domain config handling in order to
expose this feature. Since there's no convenient way for libvirt to come
up with usable defaults for the display setting, simply because libvirt
is not able to figure out which of the display implementations - dma-buf
which requires OpenGL support vs vfio regions which doesn't need OpenGL
(works with OpenGL enabled too) - the underlying mdev uses.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Erik Skultety <eskultet@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>
CPU is an acronym and should be written in uppercase
when part of plain text and not refering to an element.
Signed-off-by: Katerina Koukiou <kkoukiou@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Although the name of the element is not self-explanatory,
it's affecting only the vcpu threads.
Signed-off-by: Katerina Koukiou <kkoukiou@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Commit 4d92d5 and 55ecda introduced the parameters but didn't update the docs.
Signed-off-by: Katerina Koukiou <kkoukiou@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Since libvirt 1.3.4, any RNG source is accepted for the 'random'
backend. However, '/dev/urandom' is the _recommended_ source of
entropy. Therefore we should mention that in the docs.
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Kashyap Chamarthy <kchamart@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Adjust the documentation, parser and tests to change:
launch-security -> launchSecurity
reduced-phys-bits -> reducedPhysBits
dh-cert -> dhCert
Also fix the headline in formatdomain.html to be more generic,
and some leftover closing elements in the documentation.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Brijesh Singh <brijesh.singh@amd.com>
Tested-by: Brijesh Singh <brijesh.singh@amd.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
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>
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>
The default is actually `on` when `<smm/>` is specified.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
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>
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>
The encryption was buggy and qemu actually dropped it upstream. Forbid
it for all versions since it would cause other problems too.
Problems with the old encryption include weak crypto, corruption of
images with blockjobs and a lot of usability problems.
This requires changing of the encryption type for the encrypted disk
tests.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
To avoid the <source> vs. <target> confusion,
change <source auto='no' cid='3'/> to:
<cid auto='no' address='3'/>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
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>
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>
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>
Everything can be disabled by not using the parent element. There's no
need to store this explicitly. Additionally it does not add any value
since any configuration is dropped if enabled='no' is configured.
Drop the attribute and adjust the code accordingly.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
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>
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>
This is a definition that holds information on SCSI persistent
reservation settings. The XML part looks like this:
<reservations enabled='yes' managed='no'>
<source type='unix' path='/path/to/qemu-pr-helper.sock' mode='client'/>
</reservations>
If @managed is set to 'yes' then the <source/> is not parsed.
This design was agreed on here:
https://www.redhat.com/archives/libvir-list/2017-November/msg01005.html
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
<features><vmcoreinfo/> is a bare boolean XML property. We don't really
use this format anymore and instead prefer tristate <X state=on|off/>
since it's required for modeling on/off/default. If for example future
qemu started enabling vmcoreinfo by default we wouldn't have any way
for the user to turn this off.
Convert it to tristate. For writing XML this is semanticly the same,
<vmcoreinfo/> is processed as <vmcoreinfo state='on'/>.
For apps reading guest XML this is technically an API change,
as they might misinterpret <vmcoreinfo state='off'/>, however this
has only been present in libvirt since 3.10.0 and I don't think any
apps are dependent on this yet
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
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>
The attribute can be used to disable ROM loading completely
for a device.
This might be needed because, even when the guest is configured
such that the PCI ROM will not be loaded in the PCI BAR, some
hypervisors (eg. QEMU) might still make it available to the
guest in a form (eg. fw_cfg) that some firmwares (eg. SeaBIOS)
will consume, thus not achieving the desired result.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Initially, update the UUID field to have the proper format, but
then also changed the type, id, and name fields.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Both pcie-to-pci-bridge and dmi-to-pci-bridge can be used to
create a traditional PCI topology in a pure PCIe guest such as
those using the x86_64/q35 or aarch64/virt machine type;
however, the former should be preferred, as it doesn't need to
obey limitation of real hardware and is completely
architecture-agnostic.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1520821
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
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>
Instead of first listing the models on their own, and then
listing them again grouped by the libvirt release they were
introduced in, have a single list.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Using the 'require' value for the 'policy' attribute indicates
that the guest will have the feature so the host CPU does not
need to support it if the hypervisor can emulate it.
E.g. 'x2apic' is emulated by QEMU even if the host does not support it:
<feature policy='require' name='x2apic'/>
Signed-off-by: Kashyap Chamarthy <kchamart@redhat.com>
QEMU on S390 (since v2.11) can support virtio input ccw devices.
So build the qemu command line for ccw devices.
Also add test cases for virtio-{keyboard, mouse, tablet}-ccw.
Signed-off-by: Farhan Ali <alifm@linux.vnet.ibm.com>
Signed-off-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
