https://bugzilla.redhat.com/show_bug.cgi?id=1434451
Just like in 9324f67a57 we need to put default sata alias
(which is hardcoded to "ide", obvious, right?) onto the command
line instead of the one provided by user.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
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>
https://bugzilla.redhat.com/show_bug.cgi?id=1434451
When testing user aliases it was discovered that for 440fx
machine type which has default IDE bus builtin, domain cannot
start if IDE controller has the user provided alias. This is
because for 440fx we don't put the IDE controller onto the
command line (since it is builtin) and therefore any device that
is plugged onto the bus must use the default alias.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
In some cases management application needs to allocate memory for
qemu upfront and then just let qemu use that. Since we don't want
to expose path for memory-backend-file anywhere in the domain
XML, we can generate predictable paths. In this case:
$memoryBackingDir/libvirt/qemu/$shortName/$alias
where $shortName is result of virDomainDefGetShortName().
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Libvirt historically stores storage source path including the volume as
one string in the XML, but that is not really flexible enough when
dealing with the fields in the code. Previously we'd store the slash
separating the two as part of the image name. This was fine for gluster
but it's not necessary and does not scale well when converting other
protocols.
Don't store the slash as part of the path. The resulting change from
absolute to relative path within the gluster driver should be okay,
as the root directory is the default when accessing gluster.
Original implementation used 'SocketAddress' equivalent from qemu for
the disk server field, while qemu documentation specifies
'InetSocketAddress'. The backing store parser uses the correct parsing
function but the formatter used the incorrect one (and also with the
legacy mode enabled which was wrong).
The qemuxml2argvtest expects the domain XMLs to be inactive ones.
Therefore we should pass inactive XMLs.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Since the virStorageEncryptionPtr encryption; is a member of
_virStorageSource it really should be allowed to be a subelement
of the disk <source> for various disk formats:
Source{File|Dir|Block|Volume}
SourceProtocol{RBD|ISCSI|NBD|Gluster|Simple|HTTP}
NB: Simple includes sheepdog, ftp, ftps, tftp
That way we can set up to allow the <encryption> element to be
formatted within the disk source, but we still need to be wary
from whence the element was read - see keep track and when it
comes to format the data, ensure it's written in the correct place.
Modify the qemuxml2argvtest to add a parse failure when there is an
<encryption> as a child of <disk> *and* an <encryption> as a child
of <source>.
The virschematest will read the new test files and validate from a
RNG viewpoint things are fine.
Since the virStorageAuthDefPtr auth; is a member of _virStorageSource
it really should be allowed to be a subelement of the disk <source>
for the RBD and iSCSI prototcols. That way we can set up to allow
the <auth> element to be formatted within the disk source.
Since we've allowed the <auth> to be a child of <disk>, we'll need
to keep track of how it was read so that when writing out we'll know
whether to format as child of <disk> or <source>. For the argv2xml
parsing, let's format under <source> as a preference. Do not allow
<auth> to be both a child of <disk> and <source>.
Modify the qemuxml2argvtest to add a parse failure when there is an
<auth> as a child of <disk> *and* an <auth> as a child of <source>.
Add tests to validate that if the <auth> was found in <source>, then
the resulting xml2xml and xml2arg works just fine. The two new .args
file are exact copies of the non "-source" version of the file.
The virschematest will read the new test files and validate from a
RNG viewpoint things are fine
Update the virstoragefile, virstoragetest, and args2xml file to show
the "preference" to place <auth> as a child of <source>.
The default_tls_x509_verify (and related) parameters in qemu.conf
control whether the QEMU TLS servers request & verify certificates
from clients. This works as a simple access control system for
servers by requiring the CA to issue certs to permitted clients.
This use of client certificates is disabled by default, since it
requires extra work to issue client certificates.
Unfortunately the code was using this configuration parameter when
setting up both TLS clients and servers in QEMU. The result was that
TLS clients for character devices and disk devices had verification
turned off, meaning they would ignore errors while validating the
server certificate.
This allows for trivial MITM attacks between client and server,
as any certificate returned by the attacker will be accepted by
the client.
This is assigned CVE-2017-1000256 / LSN-2017-0002
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Somewhere around commit 9ff9d9f reserving entire PCI slots was
eliminated, as demonstrated by commit 6cc2014.
Reserve the functions required by the implicit devices:
00:01.0 ISA Bridge
00:01.1 IDE Controller
00:01.2 USB Controller (unless USB is disabled)
00:01.3 Bridge
https://bugzilla.redhat.com/show_bug.cgi?id=1460143
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>
The test suite has hardcoded /etc/pki/qemu as the cert dir, but this
only works if configure has --sysconfdir=/etc passed. We must set the
vxhs cert dir to a stable path in the test suite.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Alter qemu command line generation in order to possibly add TLS for
a suitably configured domain.
Sample TLS args generated by libvirt -
-object tls-creds-x509,id=objvirtio-disk0_tls0,dir=/etc/pki/qemu,\
endpoint=client,verify-peer=yes \
-drive file.driver=vxhs,file.tls-creds=objvirtio-disk0_tls0,\
file.vdisk-id=eb90327c-8302-4725-9e1b-4e85ed4dc251,\
file.server.type=tcp,file.server.host=192.168.0.1,\
file.server.port=9999,format=raw,if=none,\
id=drive-virtio-disk0,cache=none \
-device virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,\
id=virtio-disk0
Update the qemuxml2argvtest with a couple of examples. One for a
simple case and the other a bit more complex where multiple VxHS disks
are added where at least one uses a VxHS that doesn't require TLS
credentials and thus sets the domain disk source attribute "tls = 'no'".
Update the hotplug to be able to handle processing the tlsAlias whether
it's to add the TLS object when hotplugging a disk or to remove the TLS
object when hot unplugging a disk. The hot plug/unplug code is largely
generic, but the addition code does make the VXHS specific checks only
because it needs to grab the correct config directory and generate the
object as the command line would do.
Signed-off-by: Ashish Mittal <Ashish.Mittal@veritas.com>
Signed-off-by: John Ferlan <jferlan@redhat.com>
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>
This reverts commit edaf4ebe95.
This uses "reconnect" as attribute for <source> element, but we already
have a <reconnect> element for <source> element for chardev devices.
Since this is the same feature for different device it should be
presented in XML the same way.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
For vhost-user ports, Open vSwitch acts as the server and QEMU the client.
When OVS crashed or restart, QEMU shoule be reconnect to OVS.
Signed-off-by: ZhiPeng Lu <lu.zhipeng@zte.com.cn>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The VxHS block device will only use the newer formatting options and
avoid the legacy URI syntax.
An excerpt for a sample QEMU command line is:
-drive file.driver=vxhs,file.vdisk-id=eb90327c-8302-4725-9e1b-4e85ed4dc251,\
file.server.type=tcp,file.server.host=192.168.0.1,\
file.server.port=9999,format=raw,if=none,id=drive-virtio-disk0,cache=none \
-device virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,\
id=virtio-disk0
Update qemuxml2argvtest with a simple test.
Signed-off-by: Ashish Mittal <Ashish.Mittal@veritas.com>
Signed-off-by: John Ferlan <jferlan@redhat.com>
Alter the schema to allow a VxHS block device. Sample XML is:
<disk type='network' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source protocol='vxhs' name='eb90327c-8302-4725-9e1b-4e85ed4dc251'>
<host name='192.168.0.1' port='9999'/>
</source>
<target dev='vda' bus='virtio'/>
<serial>eb90327c-8302-4725-9e1b-4e85ed4dc251</serial>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</disk>
Update the html docs to describe the capability for VxHS.
Alter the qemuxml2xmltest to validate the formatting.
Signed-off-by: Ashish Mittal <Ashish.Mittal@veritas.com>
Signed-off-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1075520
Apart from generic checks, we need to constrain netmask/prefix
length a bit. Thing is, with current implementation QEMU needs to
be able to 'assign' some IP addresses to the virtual network. For
instance, the default gateway is at x.x.x.2, dns is at x.x.x.3,
the default DHCP range is x.x.x.15-x.x.x.30. Since we don't
expose these settings yet, it's safer to require shorter prefix
to have room for the defaults.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: laine@laine.org
https://bugzilla.redhat.com/show_bug.cgi?id=1075520
Currently, all that users can specify for an interface type of
'user' is the common attributes: PCI address, NIC model (and
that's basically it). However, some need to configure other
address range than the default one.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: laine@laine.org
Add a couple of tests to "validate" checks in domain_conf that either
a missing secrettype (CONFIG_UNSUPPORTED) or an mismatched secrettype
of ceph for an iSCSI disk (INTERNAL_ERROR) will cause a parsing error.
Alter the example to remove the <auth> from:
<disk type='volume' device='disk'>
<driver name='qemu' type='raw'/>
<source pool='iscsi-pool' volume='unit:0:0:1' mode='host'/>
<auth username='myuser'>
<secret type='iscsi' usage='libvirtiscsi'/>
</auth>
<target dev='vdb' bus='virtio'/>
</disk>
and
<disk type='volume' device='disk'>
<driver name='qemu' type='raw'/>
<source pool='iscsi-pool' volume='unit:0:0:2' mode='direct'/>
<auth username='myuser'>
<secret type='iscsi' usage='libvirtiscsi'/>
</auth>
<target dev='vdc' bus='virtio'/>
</disk>
The reality is, it's not even used. For a <source pool> the authdef
from the storage source pool will supercede whatever is in the <disk>
definition during virStorageTranslateDiskSourcePool processing. In fact,
if the pool doesn't have/need authentication, then the authdef would
be removed anyway as the storage pool would be handling things.
The "proof" for this is in the adjustment to the test to add an
<auth> for a disk. The resulting .args file won't add what normally
would be added "myname:encodedpassword@" prior to the hostname in
the IQN (e.g. iscsi://myname:encodedpassword@iscsi.example.org:3260/...
https://bugzilla.redhat.com/show_bug.cgi?id=1477880
If the "/#" is missing from the provided iSCSI path, then we need
to provide the default LUN of /0; otherwise, QEMU will fail to parse
the URL causing a failure to either create the guest or hotplug
attach the storage.
During post parse, for any iSCSI disk or hostdev, scan the source
path looking for the presence of '/', if found, then we can assume
the LUN is provided. If not found, alter the input XML to add the
"/0". This will cause the generated XML to have the generated
value when the domain config is saved after post parse.
arm/aarch64 -M virt on KVM doesn't and will never work with standard
VGA card emulation. The recommended method is to use type=virtio, so
let's make it the default for video devices without an explicit type
set by the user.
https://bugzilla.redhat.com/show_bug.cgi?id=1404112
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Currently while parsing domain XML we clear the UNIX path if it matches
one of the auto-generated paths by libvirt. After that when the guest
is started new path is generated but the mode is also changed to "bind".
In the real-world use-case the mode should not change, it only happens
if a user provides a mode='connect' and path that matches one of the
auto-generated path or not provides a path at all.
Before *reconnect* feature was introduced there was no issue, but with
the new feature we need to make sure that it's used only with "connect"
mode, therefore we need to move the mode change into parsing in order
to have a proper error reported by validation code.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
The test was introduced by 60135b22db.
The auto-generated path is removed by post-parse callback which
also changes the mode from "connect" to "bind" since the auto-generated
path makes sense only for "bind" mode.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
I mistakenly thought pSeries guests supported 32 PHBs,
but it turns out they only support 31. Validate the
target index accordingly.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1479647
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Split one of the existing tests to ensure both configuration
errors it contained cause a failure, and introduce a new
test case.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
There's some specific logic in qemuBuildCpuCommandLine to support
auto adding -cpu qemu 32 for arch=i686 with an x86_64 qemu binary.
Add a test case for it
https://bugzilla.redhat.com/show_bug.cgi?id=1458638
This code is so complicated because we allow enabling the same
bits at many places. Just like in this case: huge pages can be
enabled by global <hugepages/> element under <memoryBacking> or
on per <memory/> basis. To complicate things a bit more, users
are allowed to omit the page size which case the default page
size is used. And this is what is causing this bug. If no page
size is specified, @pagesize is keeping value of zero throughout
whole function. Therefore we need yet another boolean to hold
[use, don't use] information as we can't sue @pagesize for that.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Validate that we can pass QEMU command line options using a default
namespace, instead of a prefixed namespace
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Certain XML features that aren't in the <cpu> block map to -cpu
flags on the qemu cli. If one of these is specified but the user
didn't explicitly pass an XML <cpu> model, we need to format a
default model on the command line.
The current code handles this by sprinkling this default cpu handling
among all the different flag string formatting. Instead, switch it
to do this just once.
This alters some test output slightly: the previous code would
write the default -cpu in some cases when no flags were actually
added, so the output was redundant.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Disk serial schema has extra '.+' allowed characters in comparison
with check in code. Looks like there is no reason for that as qemu
allows any character AFAIK for serial. This discrepancy is originated
in commit id '85d15b51' where the ability to add serial was added.
Alter the disk-serial test to add a disk with all the possible
characters listed as the serial value.
While using "definitely-not-virtio" as a model name is very
cute, it will also cause the relevant test to fail once we
introduce stricter validation.
Use "e1000", which is definitely not virtio but also a valid
model name, instead.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
It's possible to have more than one unnamed virtio-serial unix channel.
We need to generate a unique name for each channel. Currently, we use
".../unknown.sock" for all of them. Better practice would be to specify
an explicit target path name; however, in the absence of that, we need
uniqueness in the names we generate internally.
Before the changes we'd get /var/lib/libvirt/qemu/channel/target/unknown.sock
for each instance of
<channel type='unix'>
<source mode='bind'/>
<target type='virtio'/>
</channel>
Now, we get vioser-00-00-01.sock, vioser-00-00-02.sock, etc.
Signed-off-by: Scott Garfinkle <seg@us.ibm.com>
This patch addresses the same aspects on PPC the bug 1103314 addressed
on x86.
PCI expander bus creates multiple primary PCI busses, where each of these
busses can be assigned a specific NUMA affinity, which, on x86 is
advertised through ACPI on a per-bus basis.
For SPAPR, a PHB's NUMA affinities are assigned on a per-PHB basis, and
there is no mechanism for advertising NUMA affinities to a guest on a
per-bus basis. So, even if qemu-ppc manages to get some sort of multi-bus
topology working using PXB, there is no way to expose the affinities
of these busses to the guest. It can only be exposed on a per-PHB/per-domain
basis.
So patch enables NUMA node tag in pci-root controller on PPC.
The way to set the NUMA node is through the numa_node option of
spapr-pci-host-bridge device. However for the implicit PHB, the only way
to set the numa_node is from the -global option. The -global option applies
to all the PHBs unless explicitly specified with the option on the
respective PHB of CLI. The default PHB has the emulated devices only, so
the patch prevents setting the NUMA node for the default PHB.
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
