Starting a KVM domain on s390 with old machine type (such as
s390-ccw-virtio-2.5) and without any guest CPU model configured fails
with
CPU models are not available: KVM doesn't support CPU models
QEMU error. This is cause by libvirt using host-model CPU as the default
CPU based on QEMU reporting "host" CPU model as being the default one
(see commit v5.9.0-402-g24d8202294: qemu: Use host-model CPU on s390 by
default). However, even though both QEMU and KVM support CPU models on
s390 and QEMU can give us the host-model CPU, we can't use it with old
machine types which only support -cpu host.
https://bugzilla.redhat.com/show_bug.cgi?id=1795651
Reported-by: Christian Ehrhardt <paelzer@gmail.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This patch adds a test case for domain XML with the tpm-spapr TPM device
model.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
The QEMU driver uses the <teaming type='persistent|transient'
persistent='blah'/> element to setup a "failover" pair of devices -
the persistent device must be a virtio emulated NIC, with the only
extra configuration being the addition of ",failover=on" to the device
commandline, and the transient device must be a hostdev NIC
(<interface type='hostdev'> or <interface type='network'> with a
network that is a pool of SRIOV VFs) where the extra configuration is
the addition of ",failover_pair_id=$aliasOfVirtio" to the device
commandline. These new options are supported in QEMU 4.2.0 and later.
Extra qemu-specific validation is added to ensure that the device
type/model is appropriate and that the qemu binary supports these
commandline options.
The result of this will be:
1) The virtio device presented to the guest will have an extra bit set
in its PCI capabilities indicating that it can be used as a failover
backup device. The virtio guest driver will need to be equipped to do
something with this information - this is included in the Linux
virtio-net driver in kernel 4.18 and above (and also backported to
some older distro kernels). Unfortunately there is no way for libvirt
to learn whether or not the guest driver supports failover - if it
doesn't then the extra PCI capability will be ignored and the guest OS
will just see two independent devices. (NB: the current virtio guest
driver also requires that the MAC addresses of the two NICs match in
order to pair them into a bond).
2) When a migration is requested, QEMu will automatically unplug the
transient/hostdev NIC from the guest on the source host before
starting migration, and automatically re-plug a similar device after
restarting the guest CPUs on the destination host. While the transient
NIC is unplugged, all network traffic will go through the
persistent/virtio device, but when the hostdev NIC is plugged in, it
will get all the traffic. This means that in normal circumstances the
guest gets the performance advantage of vfio-assigned "real hardware"
networking, but it can still be migrated with the only downside being
a performance penalty (due to using an emulated NIC) during the
migration.
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The subelement <teaming> of <interface> devices is used to configure a
simple teaming association between two interfaces in a domain. Example:
<interface type='bridge'>
<source bridge='br0'/>
<model type='virtio'/>
<mac address='00:11:22:33:44:55'/>
<alias name='ua-backup0'/>
<teaming type='persistent'/>
</interface>
<interface type='hostdev'>
<source>
<address type='pci' bus='0x02' slot='0x10' function='0x4'/>
</source>
<mac address='00:11:22:33:44:55'/>
<teaming type='transient' persistent='ua-backup0'/>
</interface>
The interface with <teaming type='persistent'/> is assumed to always
be present, while the interface with type='transient' may be be
unplugged and later re-plugged; the persistent='blah' attribute (and
in the one currently available implementation, also the matching MAC
addresses) is what associates the two devices with each other. It is
up to the hypervisor and the guest network drivers to determine what
to do with this information.
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
None of the tests depend on anything that the machine type would
influence. This will allow us to drop the very old machine type from the
non-real-data tests. If something depends on the machine type it should
be tested with real data rather than this hack.
Note that these tests are run only in the XML->XML suite because the
XML->argv suite doesn't work with the network driver.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
None of the tests depend on anything that the machine type would
influence. This will allow us to drop the very old machine type from the
non-real-data tests. If something depends on the machine type it should
be tested with real data rather than this hack.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Remove the old machine type which will be dropped in the upcomming
qemu-5.0 release from tests used against the most recent capabilities
data.
None of the modified tests really cares about the actual machine type.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The previous approac of just purging the alias combined with the fact
that we filled in fake machine types in the test data meant that if a
test case used an alias machine type such as 'pc' or 'q35' it would not
properly resolve to the actual data returned by qemu.
This started to be a problem since the CPU driver now looks at the
default CPU reported with the machine type.
This patch replaces the original approach of just removing the alias by
replacing it with a copy of the machine type data which the type would
alias to. This means that we are using the real data while we don't
modify the test output after every qemu upgrade.
Additionally this change will allow us to drop adding the fake machine
types later.
The test fallout is from actually excercising the CPU driver with
actual data.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Use the 's390-ccw-virtio' machine type which is actually supported by
the qemu we gathered the test data from.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This machine type comes from downstream ubuntu 15.10. Replace it with a
somewhat equivalent qemu-2.3 machine type as we do have test data for
that.
The change allows the CPU code to pick a proper default CPU in the
'-latest' cases.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Use 'versatilepb' instead of a fake 'non-virt' machine type.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
For testing with synthetic capabilities we pre-fill the qemu
capabilities with some machine types. Historically there were two arrays
for KVM and TCG but that's not necessary. Make both instances of x86_64
data share the same array as the other architectures do.
This will later on simplify filling in all the other machine types which
are required for the test suite.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The tests prefixed default-video* were enabled only for the xml2xml
testing and used impossible configurations.
Enable them for xml2argv testing fix them:
1) aarch64: remove pointless cpu mode
2) s390x: remove pointless cpu and use existing machine type
3) riscv: remove pointless cpu
4) x86: remove pointless cpu and use existing machine type
5) ppc65: use correct machine type and enable USB
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
XML->XML testing uses DO_TEST_CAPS_LATEST so use it also for the
XML->argv testing. Additionally use the same more modern machine type
in both tests.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The data is tested against the latest qemu binaries so we should use the
proper architecture. Also the test is used against data from qemu 1.5.3
and thus we should use a machine type that qemu supported.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Since v4.2-rc0, QEMU introduced a builtin rng backend that uses
getrandom() syscall to generate random. Add it to libvirt with the
backend model 'builtin'.
https://bugzilla.redhat.com/show_bug.cgi?id=1785091
Signed-off-by: Han Han <hhan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
QEMU since 4.1.0 supports the "dies" parameter for -smp
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Recently CPU hardware vendors have started to support a new structure
inside the CPU package topology known as a "die". Thus the hierarchy
is now:
sockets > dies > cores > threads
This adds support for "dies" in the XML parser, with the value
defaulting to 1 if not specified for backwards compatibility.
For example a system with 64 logical CPUs might report
<topology sockets="4" dies="2" cores="4" threads="2"/>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Add another disk to luks-disks-source-qcow2 case to cover a backing
chain with encrypted members.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
There is no need to require users to produce iSCSI disk source
following our ordering of children elements. In fact, we don't
even accept our own order in the schema :(.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
Previous patch made it possible for the QEMU driver to check if
a given PCI hostdev is unassigned, by checking if dev->info->type is
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_UNASSIGNED, meaning that this device
shouldn't be part of the actual guest launch.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This patch introduces a new PCI hostdev address type called
'unassigned'. This new type gives users the option to add
PCI hostdevs to the domain XML in an 'unassigned' state, meaning
that the device exists in the domain, is managed by Libvirt
like any regular PCI hostdev, but the guest does not have
access to it.
This adds extra options for managing PCI device binding
inside Libvirt, for example, making all the managed PCI hostdevs
declared in the domain XML to be detached from the host and bind
to the chosen driver and, at the same time, allowing just a
subset of these devices to be usable by the guest.
Next patch will use this new address type in the QEMU driver to
avoid adding unassigned devices to the QEMU launch command line.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Now, that we have everything prepared, we can generate command
line for NVMe disks.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
There is this class of PCI devices that act like disks: NVMe.
Therefore, they are both PCI devices and disks. While we already
have <hostdev/> (and can assign a NVMe device to a domain
successfully) we don't have disk representation. There are three
problems with PCI assignment in case of a NVMe device:
1) domains with <hostdev/> can't be migrated
2) NVMe device is assigned whole, there's no way to assign only a
namespace
3) Because hypervisors see <hostdev/> they don't put block layer
on top of it - users don't get all the fancy features like
snapshots
NVMe namespaces are way of splitting one continuous NVDIMM memory
into smaller ones, effectively creating smaller NVMe-s (which can
then be partitioned, LVMed, etc.)
Because of all of this the following XML was chosen to model a
NVMe device:
<disk type='nvme' device='disk'>
<driver name='qemu' type='raw'/>
<source type='pci' managed='yes' namespace='1'>
<address domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
</source>
<target dev='vda' bus='virtio'/>
</disk>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Move the SPICE caps validation from qemuBuildGraphicsSPICECommandLine()
to a new function called qemuDomainDeviceDefValidateSPICEGraphics().
This function is called by qemuDomainDeviceDefValidateGraphics(),
which in turn is called by qemuDomainDefValidate(), validating the graphics
parameters in domain define time.
This validation move exposed a flaw in the 'default-video-type' tests
for PPC64, AARCH64 and s390 archs. The XML was considering 'spice' as
the default video type, which isn't true for those architectures.
This was flying under the radar until now because the SPICE validation
was being made in 'virsh start' time, while the XML validation done in
qemuxml2xmltest.c considers define time.
All other tests were adapted to consider SPICE validation in this
earlier stage.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
The 32-bit x86 binary is called qemu-system-i386, not
qemu-system-i686. This mistake across many test XML files was
not noticed because the mistake was also made in testutilsqemu.c
when mocking the capabilities.
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
On s390 machines host-passthrough and host-model CPUs result in the same
guest ABI (with QEMU new enough to be able to tell us what "host" CPU is
expanded to, which was implemented around 2.9.0). So instead of using
host-passthrough CPU when there's no CPU specified in a domain XML we
can safely use host-model and benefit from CPU compatibility checks
during migration, snapshot restore and similar operations.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The test case for x86_64 and neither cirrus nor vga capability is of the
xml2argv type because it actually fails to parse the XML at all [*] which
is something that xml2xml tests don't seem to handle. xml2argv test fails
to produce a qemu argv for this case which xml2argv tests can handle.
[*] This is a consequence of the decision not to have a fallback if the
obvious choices (cirrus and vga) aren't viable due to missing QEMU caps.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Pavel Mores <pmores@redhat.com>
Now that all pieces are in place (hopefully) let's enable -blockdev.
We base the capability on presence of the fix for 'auto-read-only' on
files so that blockdev works properly, mandate that qemu supports
explicit SCSI id strings to avoid ABI regression and that the fix for
'savevm' is present so that internal snapshots work.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
When starting a domain without a CPU model specified in the domain XML,
QEMU will choose a default one. Which is fine unless the domain gets
migrated to another host because libvirt doesn't perform any CPU ABI
checks and the virtual CPU provided by QEMU on the destination host can
differ from the one on the source host.
With QEMU 4.2.0 we can probe for the default CPU model used by QEMU for
a particular machine type and store it in the domain XML. This way the
chosen CPU model is more visible to users and libvirt will make sure
the guest will see the exact same CPU after migration.
Architecture specific notes
- aarch64: We only set the default CPU for TCG domains as KVM requires
explicit "-cpu host" to work.
- ppc64: The default CPU for KVM is "host" thanks to some hacks in QEMU,
we will translate the default model to the model corresponding to the
host CPU ("POWER8" on a Power8 host, "POWER9" on Power9 host, etc.).
This is not a problem as the corresponding CPU model is in fact an
alias for "host". This is probably not ideal, but it's not wrong and
the default virtual CPU configured by libvirt is the same QEMU would
use. TCG uses various CPU models depending on machine type and its
version.
- s390x: The default CPU for KVM is "host" while TCG defaults to "qemu".
- x86_64: The default CPU model (qemu64) is not runnable on any host
with KVM, but QEMU just disables unavailable features and starts
happily.
https://bugzilla.redhat.com/show_bug.cgi?id=1598151https://bugzilla.redhat.com/show_bug.cgi?id=1598162
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The 'ramfb' attribute provides a framebuffer to the guest that can be
used as a boot display for the vgpu
For example, the following configuration can be used to provide a vgpu
with a boot display:
<hostdev mode='subsystem' type='mdev' model='vfio-pci' display='on' ramfb='on'>
<source>
<address uuid='$UUID'/>
</source>
</hostdev>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
When a CPU definition wants to explicitly disable some features that are
unknown to QEMU, we can safely drop them from the definition before
starting QEMU. Naturally QEMU won't enable such features implicitly.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
We don't allow such config in the schema but the code can handle that so
add a test case supporting it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit let QEMU command line define 'xres' and 'yres' properties
if XML contains both properties from video model: based on resolution
fields 'x' and 'y'. There is a conditional structure inside
qemuDomainDeviceDefValidateVideo() that validates if video model
supports this feature. This commit includes the necessary changes to
cover resolution for 'video-qxl-resolution' test cases too.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
This commit adds resolution element with parameters 'x' and 'y' into video
XML domain group definition. Both, properties were added into an element
called 'resolution' and it was added inside 'model' element. They are set
as optional. This element does not follow QEMU properties 'xres' and
'yres' format. Both HTML documentation and schema were changed too. This
commit includes a simple test case to cover resolution for QEMU video
models. The new XML format for resolution looks like:
<model ...>
<resolution x='800' y='600'/>
</model>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
This patch adds the implementation of the ccf-assist pSeries
feature, based on the QEMU_CAPS_MACHINE_PSERIES_CAP_CCF_ASSIST
capability that was added in the previous patch.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This device is a very simple framebuffer device supported by qemu that
is mostly intended to use as a boot framebuffer in conjunction with a
vgpu. However, there is also a standalone ramfb device that can be used
as a primary display device and is useful for e.g. aarch64 guests where
different memory mappings between the host and guest can prevent use of
other devices with framebuffers such as virtio-vga.
https://bugzilla.redhat.com/show_bug.cgi?id=1679680 describes the
issues in more detail.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Commit fb973cfbb4 added versioned test outputs for the above mentioned
tests but didn't actually enable them. Fix that mistake and fix the
output of the tsc-frequency test.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The test data was modernized to use actual caps but commit 4dadcaa98e
forgot to delete this test data.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The last use was removed in 7b604379ba when we deleted the old
commandline parser.
The argv generator tests are provided by:
machine-aeskeywrap-on-caps
machine-aeskeywrap-on-cap
machine-aeskeywrap-off-caps
machine-aeskeywrap-off-cap
machine-deakeywrap-on-caps
machine-deakeywrap-on-cap
machine-deakeywrap-off-caps
machine-deakeywrap-off-cap
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The last use was removed in 7b604379ba when we deleted the old
commandline parser. The same functionality is tested by many tests for
pseries guests.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The last use was removed in 7b604379ba when we deleted the old
commandline parser. The same functionality is tested by
'serial-pty-chardev'.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The way in which the qemu driver generates aliases for disks involves
ignoring the partition number part of a target dev name. This means that
all partitions of a block device and the device itself all end up with the
same alias. If multiple such disks are specified in XML, the resulting
name clash makes qemu invocation fail.
Since attaching partitions to qemu VMs doesn't seem to make much sense
anyway, disallow partitions in target specifications altogether.
https://bugzilla.redhat.com/show_bug.cgi?id=1346265
Signed-off-by: Pavel Mores <pmores@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The video private data was not initializing the vhostuser FD
causing us to attempt to close FD 0 many times over.
Fixes
commit ca60ecfa8c
Author: Marc-André Lureau <marcandre.lureau@redhat.com>
Date: Mon Sep 23 14:44:36 2019 +0400
qemu: add qemuDomainVideoPrivate
Since the test suite does not invoke qemuExtDevicesStart(), no
vhost_user_fd will be present when generating test XML. To deal
with this we can must a fake FD number. While the current XML
is using FD == 0, we pick a very interesting number that's unlikely
to be a real FD, so that we're more likely to see any mistakes
closing the invalid FD.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
For each vhost-user GPUs,
- build a socket chardev, and pass the vhost-user socket to it
- build a vhost-user video device and associate it with the chardev
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
vhost-user device doesn't have a virgl option, it is passed to the
vhost-user-gpu helper process instead.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
vhost-user-gpu helper takes --render-node option to specify on which
GPU should the renderning be done.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Accept a new driver name attribute to specify usage of helper process, ex:
<video>
<driver name='vhostuser'/>
<model type='virtio'/>
</video>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The fact that qemu is capable -netdev socket is not enough to
start a migratable domain. It also needs dbus-vmstate capability.
Since there are already some qemu releases which have
net-socket-dgram capability and don't have dbus-vmstate we need
to check for dbus-vmstate.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
If managed='no', then the tap device must already exist, and setting
of MAC address and online status (IFF_UP) is skipped.
NB: we still set IFF_VNET_HDR and IFF_MULTI_QUEUE as appropriate,
because those bits must be properly set in the TUNSETIFF we use to set
the tap device name of the handle we've opened - if IFF_VNET_HDR has
not been set and we set it the request will be honored even when
running libvirtd unprivileged; if IFF_MULTI_QUEUE is requested to be
different than how it was created, that will result in an error from
the kernel. This means that you don't need to pay attention to
IFF_VNET_HDR when creating the tap devices, but you *do* need to set
IFF_MULTI_QUEUE if you're going to use multiple queues for your tap
device.
NB2: /dev/vhost-net normally has permissions 600, so it can't be
opened by an unprivileged process. This would normally cause a warning
message when using a virtio net device from an unprivileged
libvirtd. I've found that setting the permissions for /dev/vhost-net
permits unprivileged libvirtd to use vhost-net for virtio devices, but
have no idea what sort of security implications that has. I haven't
changed libvrit's code to avoid *attempting* to open /dev/vhost-net -
if you are concerned about the security of opening up permissions of
/dev/vhost-net (probably a good idea at least until we ask someone who
knows about the code) then add <driver name='qemu'/> to the interface
definition and you'll avoid the warning message.
Note that virNetDevTapCreate() is the correct function to call in the
case of an existing device, because the same ioctl() that creates a
new tap device will also open an existing tap device.
Resolves: https://bugzilla.redhat.com/1723367 (partially)
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Although <interface type='ethernet'> has always been able to use an
existing tap device, this is just a coincidence due to the fact that
the same ioctl is used to create a new tap device or get a handle to
an existing device.
Even then, once we have the handle to the device, we still insist on
doing extra setup to it (setting the MAC address and IFF_UP). That
*might* be okay if libvirtd is running as a privileged process, but if
libvirtd is running as an unprivileged user, those attempted
modifications to the tap device will fail (yes, even if the tap is set
to be owned by the user running libvirtd). We could avoid this if we
knew that the device already existed, but as stated above, an existing
device and new device are both accessed in the same manner, and
anyway, we need to preserve existing behavior for those who are
already using pre-existing devices with privileged libvirtd (and
allowing/expecting libvirt to configure the pre-existing device).
In order to cleanly support the idea of using a pre-existing and
pre-configured tap device, this patch introduces a new optional
attribute "managed" for the interface <target> element. This
attribute is only valid for <interface type='ethernet'> (since all
other interface types have mandatory config that doesn't apply in the
case where we expect the tap device to be setup before we
get it). The syntax would look something like this:
<interface type='ethernet'>
<target dev='mytap0' managed='no'/>
...
</interface>
This patch just adds managed to the grammar and parser for <target>,
but has no functionality behind it.
(NB: when managed='no' (the default when not specified is 'yes'), the
target dev is always a name explicitly provided, so we don't
auto-remove it from the config just because it starts with "vnet"
(VIR_NET_GENERATED_TAP_PREFIX); this makes it possible to use the
same pattern of names that libvirt itself uses when it automatically
creates the tap devices.)
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
There are already good number of test cases with hostdevices,
few have multifunction devices but none having more than one
than one multifunction cards.
This patch adds a case where there are two multifunction cards
and two Virtual functions part of the same XML.
0001:01:00.X & 0005:09:00.X - are Multifunction PCI cards.
0000:06:12.[5|6] - are SRIOV Virtual functions
Future commits will improve on automatically detecting the
multifunction cards and auto-assinging the addresses
appropriately.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
The softlink to physfn is the way to know if the device is
VF or not. So, the patch softlinks 'physfn' to the parent function.
The multifunction PCI devices dont have 'physfn' softlinks.
The patch adds few Virtual functions to the mock environment and
changes the existing VFIO test xmls using the VFs to use the newly
added VFs for their use case.
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
It is failing, because it ends up being parsed with version='default'
and expects '1.2' instead.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
After parsing a video device with a model type of
VIR_DOMAIN_VIDEO_TYPE_NONE, all device info is cleared (see
virDomainDefPostParseVideo()) in order to avoid formatting any
auto-generated values for the XML. Subsequently, however, an alias is
generated for the video device (e.g. 'video0'), which results in an
alias property being formatted in the XML output anyway. This creates
confusion if the user has explicitly provided an alias for the video
device since the alias will change.
To avoid this, don't clear the user-defined alias for video devices of
type "none".
https://bugzilla.redhat.com/show_bug.cgi?id=1720612
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Add support to specify a boot order on vfio-ccw passthrough devices.
Reviewed-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Bjoern Walk <bwalk@linux.ibm.com>
Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Adding a failure test for booting from a vhost scsi hostdev device.
Reviewed-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Bjoern Walk <bwalk@linux.ibm.com>
Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Bjoern Walk <bwalk@linux.ibm.com>
Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
QEMU-4.1 supports 'Direct Mode' for Hyper-V synthetic timers
(hv-stimer-direct CPU flag): Windows guests can request that timer
expiration notifications are delivered as normal interrupts (and not
VMBus messages). This is used by Hyper-V on KVM.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
In particular, use DO_TEST_CAPS_LATEST which tests the canonical
'hv-feature' syntax instead of 'hv_feature' aliases and DO_TEST_CAPS_VER
with 4.0.0 to also test the old syntax.
Suggested-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
The pci-assign device is so old school that no one uses it. All
modern systems have adapted VFIO. Switch our xml2argv test too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Update the KVM feature tests for QEMU's kvm-hint-dedicated
performance hint.
Signed-off-by: Wim ten Have <wim.ten.have@oracle.com>
Signed-off-by: Menno Lageman <menno.lageman@oracle.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
There is no restriction on maximum value of PCI domain. In fact,
Linux kernel uses plain atomic inc when assigning PCI domains:
drivers/pci/pci.c:static int pci_get_new_domain_nr(void)
drivers/pci/pci.c-{
drivers/pci/pci.c- return atomic_inc_return(&__domain_nr);
drivers/pci/pci.c-}
Of course, this function is called only if kernel was compiled
without PCI domain support or ACPI did not provide PCI domain.
However, QEMU still has the same restriction as us: in
set_pci_host_devaddr() QEMU checks if domain isn't greater than
0xffff. But one can argue that that's a QEMU limitation. We still
want to be able to cope with other hypervisors that don't have
this limitation (possibly).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
While it's true that older QEMUs were not able to deal with PCI
domains, we don't support those versions anymore (see
4a42ece13a). Therefore it is safe to always format fully
expanded PCI address. Format PCI domain always as it will
simplify next commits.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Starting with QEMU 4.1, we're using the canonical feature names on the
command line and avoid aliases to prepare for possible deprecation of
all aliases in QEMU. But we do so only for features from our CPU map,
hyperv features defined in the code were unchanged and this patch fixes
it. Some features use "hv-" prefix unconditionally because they were
introduced recently enough to always support spelling with a dash.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Tested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The QEMU command line does not change when TPM state is encrypted
compared to when it is plain.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Add a test case for the TPM XML encryption parser and formatter.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
To allow using -blockdev with blockjobs QEMU needs to reopen files in
read-write mode when modifying the backing chain. To achieve this we
need to use 'auto-read-only' for the backing files rather than the
normal 'read-only' property. That way qemu knows that the files need to
be reopened.
Note that the format drivers (e.g. qcow2) are still opened with the
read-only property enabled when being a member of the backing chain
since they are supposed to be immutable unless a block job is started.
QEMU v4.0 (since commit 23dece19da4) allows also dynamic behaviour for
auto-read-only which allows us to use sVirt as we only grant write
permissions to files when doing a blockjob.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use the existing fs9p.xml and fs9p-ccw.xml to run the tests
with latest caps on x86_64 and s390x.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
When validating a domain among all the checks there are two that
concern VIR_DOMAIN_LOADER_TYPE_PFLASH specifically. The first
check ensures that on x86 ACPI is enabled when UEFI is requested,
the second ensures that UEFI is used when ACPI is requested on
aarch64. However, check for UEFI is done by plain comparison of
def->os.loader->type which is insufficient because we have
def->os.firmware too.
NB, this wouldn't be a problem for active domain, because on
startup process def->os.loader->type gets filled by
qemuFirmwareEnableFeatures(), but that's not the case for
inactive domains.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1729604
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Update schema and configuration to allow specifying new video type of
'bochs'. Add implementation and tests for qemu.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Our code would skip adding the default type in this cases, but since we
know that the only reasonable option here is 'fat' we can add it while
starting the VM.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The storage volume may in fact convert into a directory when starting
the VM so that it may be actually possible to use it.
This is a regression caused by c9b27af32d as moving the check to
validation time without adjustment causes problems as the volumes are
not translated yet.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Support for this has only relatively recently been added to
virt-manager.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use the latest virt-manager to regenerate the files.
The command line is once again along the lines of
$ virt-install \
--name guest --os-variant fedora29 \
--vcpus 4 --memory 4096 --disk size=5 \
--graphics (none|vnc) \
--print-xml
with some minor tweaks performed afterwards.
This removes a number of inconsistencies between the files,
and makes it so the only differences are actually relevant
either to the architecture and machine type at hand, or to
having graphics rather than being headless.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Right now *-headless and *-graphics tests are using different
quoting styles, which results in the diff between them being
basically useless, whereas we would like it to be possible to
compare these files directly and easily spot the differences.
Convert all *-graphics tests to single quotes, which is the
style libvirt itself uses when formatting XML: this is a fact
that will come in handy later.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Show that the capability tweaking stuff works by enabling blockdev in
the 'qemu-ns' test even in versions where it's not yet fully supported.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use the DO_TEST_CAPS_LATEST/VER infrastructure to run a more modern
version of this and also fork it to a pre-blockdev version so that we
can check the qemu namespace capability tweaking.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Similarly how we allow adding arbitrary command line arguments and
environment variables this patch introduces the ability to control
libvirt's perception of the qemu process by tweaking the capability bits
for testing purposes.
The idea is to allow developers and users either test a new feature by
enabling it early or disabling it to see whether it introduced
regressions.
This feature is not meant for production use though, so users should
handle it with care.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
No reason not to be consistent with the user-visible value.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This test case shows that we now reject invalid spapr-vio
addresses.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
When building QEMU command line, we should use the preferred spelling of
each CPU feature without relying on compatibility aliases (which may be
removed at some point).
The "unavailable-features" CPU property is used as a witness for the
correct names of the features in our translation table.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This should cover all CPU features for which QEMU prefers spelling that
differs from the one used by libvirt.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Newer QEMU will translate the feature names to their canonical names so
4.0.0 is the last one which produces the results we currently have in
*-latest.args.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Normal CPU features use modern -cpu ...,feature=on|off syntax when
available, but kvm features kept using the old +feature or -feature.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
These test check all kvm CPU features that could be passed to the -cpu
option by libvirt.
The 2.7.0 version is the last one for which we use +|-feature syntax for
CPU features, while feature=on|off is used with newer versions. This
is visible in the following patch which changes only the *-latest.args
files.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The portid will be the UUID of the virNetworkPort object associated
with the network interface when a guest is running.
Reviewed-by: Laine Stump <laine@laine.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
SMMUv3 is an IOMMU implementation for ARM virt guests.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Make sure validation is working as intended by trying to use
Intel IOMMU with the i440fx machine type, though we know it's
a q35-only feature, and expecting an error to be returned.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We can drop the intel-iommu-machine test case while doing so,
since it is supposed to showcase how we generate different
command lines for older QEMU versions and we can do that
using a single input file now.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Remove a bunch of irrelevant devices and make sure all input
files explicitly opt out of USB controllers: the latter change
will help later, when we start using DO_TEST_CAPS_*().
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
CPU features that always were a no-op in qemu got removed there.
We no more specify them as that would trigger errors and fail to start
qemu. This test ensures that those features really are not rendered into
qemu command line.
Without the related fix this test will trigger and fail like:
In 'tests/qemuxml2argvdata/cpu-no-removed-features.args':
Offset 371
Expect [ ]
Actual [,-osxsave,-ospke ]
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Qemu dropped cpu features for osxsave and ospke [1][2].
The reason for the instant removal is that those features were never
configurable as discussed in [3].
Fortunately the use cases adding those flags in the past are rare, but
they exist. One that I identified are e.g. older virt-install when used
with --cpu=host-model and there always could be the case of a user
adding it to the guest xml.
This triggers an issue like:
qemu-system-x86_64: can't apply global Broadwell-noTSX-x86_64-
cpu.osxsave=on: Property '.osxsave' not found
Ensure that this does no more break spawning newer qemu versions by
not rendering those features into the qemu command line.
Fixes: https://bugs.launchpad.net/fedora/+source/qemu/+bug/1825195
Resolves: https://bugzilla.redhat.com/1644848
[1]: https://git.qemu.org/?p=qemu.git;a=commit;h=f1a2352
[2]: https://git.qemu.org/?p=qemu.git;a=commit;h=9ccb978
[3]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg561877.html
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
In addition adjusting iothreads-virtio-scsi-ccw.s390x-latest.args to prevent
accidential drive id exposure by QEMU fixed by commit a1dce96236
(qemu: Use the 'device_id' property of SCSI disks to avoid regressing),
and also adjusting *s390x-latest.args files to qemu deprecation changes made
in commit e8c2c8bd07 (Prefer '-overcommit mem-lock' over -realtime mlock').
Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
vbox and vmx drivers do net case insensitive net model comparisons,
so for example 'VMXNET3' and 'vmxnet3' and 'VmxNeT3' in the XML will
translate to the same driver configuration. To convert these drivers
to use net model enum, we will need to do case insensitive comparisons
as well.
Essentially we implement virEnumToString, but with case insensitive
comparison. XML will always be formatted with the enum model string
we track internally, but we will accept any case insensitive variant.
Acked-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
The latter is deprecated and will be removed soon. The advised
replacement is '-overcommit mem-lock=on|off'.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The '-realtime mlock' cmd line argument was introduced in QEMU
commit v1.5.0-rc0~190 which matches minimal QEMU version we
require. Therefore, the capability will always be present.
Apparently, nearly none of our xml2argv test cases had the
capability hence slightly bigger change under qemuxml2argvdata/.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Test the memory locking command line with different QEMU versions
to prepare for changing it for latest QEMU.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Test the memory locking command line with different QEMU versions
to prepare for changing it for latest QEMU.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
There are a few differences, but the one we're interested in is
that PCIe Root Ports are finally available: as a result of this,
our riscv64-virt-headless guest will switch from virtio-mmio to
virtio-pci.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1693066
Up until memfd introduction (in 24b74d187c) we did not need to
know @pagesize because qemuGetDomainHupageMemPath() could deal
with it being zero (value of zero means use the default hugetlbfs
mount). But since for memfd we are not passing a path to
hugetlbfs mount rather the page size value we need to know its
value upfront.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Somehow, these were not tested. Use symlinks to point expected
output back to the input. This way we can also fix some
discrepancies in the input XMLs.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
There are three test XMLs that have useless spaces at the
beginning of each line. I intend to add these to qemuxml2xmltest
and make xmlout a symlink to the original XML. In order to do
that the XMLs must look better than they do now.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Similarly to the disk source we need to keep the disk index (which is in
the qemu driver used for identification of the source for block jobs)
for the <mirror> element so that when it's replaced as a disk source
after pivoting all the allocated data is present.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
When the block copy operation is started with a reused external file in
incremental mode libvirt will need to open and insert the backing chain
for that file into qemu (in -blockdev mode). This means that we'll need
to track the backing chain and metadata such as node names for the full
chain of <mirror>.
This patch invokes the full backing chain formatter and parser for
<mirror> so that the chain can be kept with <mirror>.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We parse the seclabels and use them internally so omitting them when
formatting would be misleading. Additionally our schema actually allows
them.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We have tests for simple guests with graphics for basically
all other architectures, so it makes sense to include s390x
too.
The input file was generated by running
$ virt-install \
--name guest --os-variant fedora29 \
--vcpus 4 --memory 4096 --disk size=5 \
--graphics vnc \
--print-xml
followed by minor tweaks, using a version of virt-manager
that includes commit 7b9de27a990f.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Acked-by: Michal Privoznik <mprivozn@redhat.com>
As of commit db6c7070e25a, virt-manager will default to using
virtio-blk rather than virtio-scsi for aarch64/virt guests,
bringing them in line with other architectures. Update our test
case to reflect this change.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Acked-by: Michal Privoznik <mprivozn@redhat.com>
By default, qemu user's home dir points to '/' which shouldn't be used
at all. We therefore pass the HOME variable from the current variable
iff not running as SUID, which means that for systemd we never set it.
This patch makes sure, that for system QEMU this is always set to
libDir/<driver>, session mode is left untouched.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
For session mode, only XDG_CACHE_HOME is set, because we want to remain
integrating with services in user session, but for system mode, this
would have become reading/writing to '/' which carries the obvious issue
with permissions (also, '/' is the wrong location in 99.9% cases anyway).
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1564270
Now that everything is prepared for qemu driver we can enable
parser feature to allow users define such domains.
At the same time, introduce bunch of tests to test the feature.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The existing behavior for ppc64 guests is to always add a USB
keyboard and mouse combo if graphics are present; unfortunately,
this means any attempt to use a USB tablet will cause both pointing
devices to show up in the guest, which in turn will result in poor
user experience.
We can't just stop adding the USB mouse or start adding a USB tablet
instead, because existing applications and users might rely on the
current behavior; however, we can avoid adding the USB mouse if a USB
tablet is already present, thus allowing users and applications to
create guests that contain a single pointing device.
https://bugzilla.redhat.com/show_bug.cgi?id=1683681
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
These are similar to the existing simple headless guests, but
also include a graphical output and some input devices.
Input files were generated by running
$ virt-install \
--name guest --os-variant fedora29 \
--vcpus 4 --memory 4096 --disk size=5 \
--graphics vnc \
--print-xml
followed by minor tweaks.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
While the parser and schema have to accept all possible models,
virtio-(non-)transitional models are only applicable to
type=passthrough and should be otherwise rejected.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Add <controller type='scsi' model handling for virtio transitional
devices. Ex:
<controller type='scsi' model='virtio-transitional'/>
* "virtio-transitional" maps to qemu "virtio-scsi-pci-transitional"
* "virtio-non-transitional" maps to qemu "virtio-scsi-non-transitional"
The naming here doesn't match the pre-existing model=virtio-scsi.
The prescence of '-scsi' there seems kind of redundant as we have
type='scsi' already, so I decided to follow the pattern of other
patches and use virtio-transitional etc.
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
<input> devices lack the model= attribute which is used by
most other device types. To eventually support
virtio-input-host-pci-{non-}traditional in qemu, let's add
a standard model= attribute. This just adds the domain_conf
wiring
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
<filesystem> devices lack the model= attribute which is used by
most other device types. To eventually support
virtio-9p-pci-{non-}traditional in qemu, let's add a standard
model= attribute. The accepted values are:
- virtio
- virtio-transitional
- virtio-non-transitional
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
qemu vhost-scsi devices map to XML roughly like:
<hostdev mode='subsystem' type='scsi_host'>
<source protocol='vhost' wwpn=X/>
</hostdev>
To support vhost-scsi-pci-{non-}traditional in qemu, we
need to to extend the SCSI Host hostdev XML to handle
model= value. This matches the XML model= format used
for mediated devices. This is just the domain_conf bits
and some XML test cases.
Use of virtio-X naming here does not match the hostdev
protocol=vhost nor does it match the qemu vhost-X device
naming, however it's more consistent with all other
model= names in this area, and also matches the
inconsistency of <vsock> devices which use model=virtio
but map to vhost-vsock on the qemu commandline
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Add new <disk> model values for virtio transitional devices. When
combined with bus='virtio':
* "virtio-transitional" maps to qemu "virtio-blk-pci-transitional"
* "virtio-non-transitional" maps to qemu "virtio-blk-pci-non-transitional"
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
<disk> devices lack the model= attribute which is used by
most other device types. bus= mostly acts as one, but it
serves other purposes too like determing what target=
prefix to use, and for matching against controller type=
values.
Extending bus= to handle additional virtio transitional
devices will complicate apps lives, and it isn't a clean
mapping anyways. So let's bite the bullet and add a new
<disk model=X/> attribute, and wire up common handling
for virtio and virtio-{non-}transitional
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Introduced by d86c876a66.
There is no real need to have "user-" prefix for chardev.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
QEMU accidentally exposed the id of -drive (or same value as disk
serial, if provided) in one of the identifiers visible from the guest.
To avoid regression in case when -blockdev will be used we need to
always specify it ourselves.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Upcoming addition of a new field will need to make sure that SCSI disk
serial is tested as well. Add a case to one of the existing tests.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
For SCSI, IDE, and AHCI cdroms the appropriate device types which select
the correct media are used. In qemu there's one other code path that
looks at -drive media=cdrom in the XEN pv code. Thankfully we don't
support it with qemu (see qemuBuildDiskDeviceStr). All other devices
ignore it as the comment states, thus we can drop that code.
The test fallout is expectedly only in the test added for uncommon cdrom
types.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Add full and empty cdroms on 'usb' and 'sd' bus to have test
coverage. Note that this does not guarantee that qemu will accept them.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Attempting to create an empty virtio-blk drive results into:
-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0xc,drive=drive-virtio-disk1,id=virtio-disk1: Device needs media, but drive is empty
Attempting to eject media from virtio-blk based drive results into:
error: internal error: unable to execute QEMU command 'eject': Device 'drive-virtio-disk0' is not removable
Forbid configurations where users would attempt to use cdroms in virtio
bus.
Fix few wrong examples which are not really relevant to the tested code.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The split of ide-disk into the two separate devices was introduced by
qemu commit 1f56e32a7f4b3 released in qemu v0.15.
Note that when compared to the previous commit which made sure that no
disk related tests were touched, in this case it's not as careful.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The split of scsi-disk into the two separate devices was introduced by
qemu commit b443ae67 released in qemu v0.15.
All changes to test files are not really related to disk testing thanks
to previous refactors.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The tests are for the same feature. Move all the cases to 'disk-shared'
case as it's already using DO_TEST_CAPS_LATEST
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Testing that the cachemode is properly recorded to the configuration
after startup does not add much value and overcomplicates the xml2argv
test.
Remove the 'disk-shared' test with old capabilities as the test with
real capabilities covers the code sufficiently.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Using an old strict set of capabilities is not of much use if a code
path would select a more modern controller by accident.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Now that we have a specific test for testing the 'virtio-scsi'
controller and other tests which test a combination of scsi and non-scsi
devices this test no longer makes sense.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Storage pools might want to specify format of the image when translating
the volume thus we can't add any default format when parsing the XML.
Add a explicit format when starting the VM and format is not present
neither by user specifying it nor by the storage pool translation
function.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Post parse callback adds the 'raw' type only for local files. Remote
files can also have backing store (even local) so we should do this also
for network backed storage.
Note that virStorageFileGetMetadata always considers files with no type
as raw so we will not accidentally traverse the backing chain and allow
unexpected files being labelled with svirt labels.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Modify some existing tests of network-based disks to omit the storage
format specification.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
In commit f80eae8c2a I was too agresive in removing properties of
-drive for empty drives. It turns out that qemu actually persists the
state of 'readonly' and the throttling information even for the empty
drive.
Removing 'readonly' thus made qemu open any subsequent images added via
the 'change' command as RW which was forbidden by selinux thanks to the
restrictive sVirt label for readonly media.
Fix this by formating the property again and bump the tests and leave a
note detailing why the rest of the properties needs to be skipped.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This shows users can now use PCI for RISC-V guests, as long
as they opt into it by manually assigning addresses.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use the password stored in the secret driver under
the uuid specified by the vnc_tls_x509_secret_uuid
option in qemu.conf.
https://bugzilla.redhat.com/show_bug.cgi?id=1602418
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
If a -drive has no image, using image properties makes qemu whine that
they should not be used.
This patch stops formating cache/readonly/... for empty drives
for the pre-blockdev syntax. Unfortunately those parameters can't be
added later when inserting media, but on the other hand qemu will start
with an empty drive.
Since we already were able to start a VM with such config previously due
to qemu ignoring them I've opted just to skip formatting them.
Additionally with -blockdev support it will work as expected as the
image properties will be formatted when adding the image itself which is
not possible without it.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1651457
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Upcomming change will influence CDROM with cache mode so add a test
case.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
According to the result parsing from xml, add the unarmed property
into QEMU command line:
-device nvdimm,...[,unarmed=on]
Signed-off-by: Luyao Zhong <luyao.zhong@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
According to the result parsing from xml, add pmem property
into QEMU command line:
-object memory-backend-file,...[,pmem=on]
Signed-off-by: Luyao Zhong <luyao.zhong@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
According to the result parsing from xml, add align property
into QEMU command line:
-object memory-backend-file,...[,align=xxx]
Signed-off-by: Luyao Zhong <luyao.zhong@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Deprecate DO_TEST to do nvdimm qemuxml2argvdata tests, because
DO_TEST_CAPS_LATEST is a better choice. The DO_TEST needs
to specify all qemu capabilities and is not easy for scaling.
Signed-off-by: Luyao Zhong <luyao.zhong@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
NVDIMM emulation will mmap the backend file, it uses host pagesize
as the alignment of mapping address before, but some backends may
require alignments different from the pagesize. So the 'alignsize'
option is introduced to allow specification of the proper alignment:
<devices>
...
<memory model='nvdimm' access='shared'>
<source>
<path>/dev/dax0.0</path>
<alignsize unit='MiB'>2</alignsize>
</source>
<target>
<size unit='MiB'>4094</size>
<node>0</node>
<label>
<size unit='MiB'>2</size>
</label>
</target>
</memory>
...
</devices>
Signed-off-by: Luyao Zhong <luyao.zhong@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1624223
There are two ways to request memory preallocation on cmd line:
-mem-prealloc and .prealloc attribute for a memory-backend-file.
However, as it turns out it's not safe to use both at the same
time. If -mem-prealloc is used then qemu will fully allocate the
memory (this is done by actually touching every page that has
been allocated). Then, if .prealloc=yes is specified,
mbind(flags = MPOL_MF_STRICT | MPOL_MF_MOVE) is called which:
a) has to (possibly) move the memory to a different NUMA node,
b) can have no effect when hugepages are in play (thus ignoring user
request to place memory on desired NUMA nodes).
Prefer -mem-prealloc as it is more backward compatible
compared to switching to "-numa node,memdev= + -object
memory-backend-file".
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Remove the disk from tests focusing on other aspects so that change to
-blockdev will touch less tests.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Depending on whether QEMU actually supports the option, we can put the
'rendernode' on the '-display egl-headless' cmdline.
https://bugzilla.redhat.com/show_bug.cgi?id=1628892
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Unlike with SPICE and SDL which use the <gl> subelement to enable OpenGL
acceleration, specifying egl-headless graphics in the XML has
essentially the same meaning, thus in case of egl-headless we don't have
a need for the 'enable' element attribute and we'll only be interested
in the 'rendernode' one further down the road.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Up until now, we formatted 'rendernode=' onto QEMU cmdline only if the
user specified it in the XML, otherwise we let QEMU do it for us. This
causes permission issues because by default the /dev/dri/renderDX
permissions are as follows:
crw-rw----. 1 root video
There's literally no reason why it shouldn't be libvirt picking the DRM
render node instead of QEMU, that way (and because we're using
namespaces by default), we can safely relabel the device within the
namespace.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Add a new memoryBacking source type "memfd", supported by QEMU (when
the capability is available).
A memfd is a specialized anonymous memory kind. As such, an anonymous
source type could be automatically using a memfd. However, there are
some complications when migrating from different memory backends in
qemu (mainly due to the internal object naming at this point, but
there could be more). For now, it is simpler and safer to simply
introduce a new source type "memfd". Eventually, the "anonymous" type
could learn to use memfd transparently in a separate change.
The main benefits are that it doesn't need to create filesystem files,
and it also enforces sealing, providing a bit more safety.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Add new functions to generate zPCI command string and append it to
QEMU command line. And the related tests are added.
Signed-off-by: Yi Min Zhao <zyimin@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Stefan Zimmermann <stzi@linux.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.ibm.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
We should ensure that QEMU supports zPCI when a zPCI address is defined
in XML and otherwise report an error. This patch introduces a generic
validation function qemuDomainDeviceDefValidateAddress() which calls
qemuDomainDeviceDefValidateZPCIAddress() if address type is PCI address.
Signed-off-by: Yi Min Zhao <zyimin@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
