xsaveopt is artificially removed from the host to test disabled feature
which is only included in QEMU's version of the CPU model.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
arat is now enabled even if the hardware does not support it.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This CPU was incorrectly detected as SandyBridge before because the
number of additional <feature> elements was the same for both
SandyBridge and Westmere CPU models, but SandyBridge is newer (the CPU
signature does not help here because it doesn't match any signature
defined in cpu_map.xml). But since QEMU's version of SandyBridge CPU
model contains xsaveopt which needs to be disabled, Westmere becomes the
best CPU model when translating CPUID data to virCPUDef. Unfortunately,
this doesn't help with translating the data we got from QEMU and the CPU
model is still computed as SandyBridge in this case.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The unavailable features do not make any difference in this case,
because this is a SandyBridge CPU which has an empty list of unavailable
features.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
When testing cpuDecode for computing guest CPU definition from CPUID
data (the CPU definition reported by domain capabilities), we need to
use CPU models (and their usability blockers) from QEMU if they are
available to cpuDecode in the same way it is actually used in the qemu
driver.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Gather query-cpu-definitions results and use them for testing CPU model
usability blockers in CPUID to virCPUDef translation.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
If the actual result does not match our expectation, the tests would
not correctly show the difference if a CPU feature is disabled in the
expected result and the actual result does not mention it at all. The
test could complain about an unrelated CPU feature or it could even
crash in case the actual result contains no more features to go through.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Various version of json_reformat use different number of spaces for
indenting. Let's use a simple python reformatter to gain full control
over the formatting for consistent results.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
When decoding CPUID data to virCPUDef we need to be careful about using
a CPU model which cannot be directly used on the current host. Normally,
libvirt would notice the features which prevent the model from being
usable and it would disable them in the computed virCPUDef, but this
won't work in case the definition of the CPU model in QEMU contains more
features than what we have in cpu_map.xml. We need to count with the
usability blockers we got from QEMU and explicitly disable all of them
to make the computed virCPUDef usable.
https://bugzilla.redhat.com/show_bug.cgi?id=1464832
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This internal API can be used to find a specific CPU model in
virDomainCapsCPUModels list.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The "preferred" parameter is not used by any caller of cpuDecode
anymore. It's only used internally in cpu_x86 to implement cpuBaseline.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
All APIs which expect a list of CPU models supported by hypervisors were
switched from char **models and int models to just accept a pointer to
virDomainCapsCPUModels object stored in domain capabilities. This avoids
the need to transform virDomainCapsCPUModelsPtr into a NULL-terminated
list of model names and also allows the various cpu driver APIs to
access additional details (such as its usability) about each CPU model.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
query-cpu-definitions QMP command returns a list of unavailable features
which prevent CPU models from being usable on the current host. So far
we only checked whether the list was empty to mark CPU models as
(un)usable. This patch parses all unavailable features for each CPU
model and stores them in virDomainCapsCPUModel as a list of usability
blockers.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
When a hypervisor marks a CPU model as unusable on the current host, it
may also give us a list of features which prevent the model from being
usable. Storing this list in virDomainCapsCPUModel will help the CPU
driver with creating a host-model CPU configuration.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The API makes a deep copy of a NULL-terminated string list.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Currently, if parsing of device info fails info->alias is freed.
It doesn't make much sense to leave the rest of the struct
behind.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
There's one 'return' in the middle of the function body. It's
very easy to miss and so it makes adding new code harder. Also
the function doesn't follow our style 100%.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1497396
In 0d3d020ba6 I've added capability to accept MAC addresses
for the API too. However, the implementation was faulty. It needs
to lookup the corresponding interface in the domain definition
and pass the ifname instead of MAC address.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Commit id '8708ca01c' added a check to determine whether the NIC had
Switchdev capabilities; however, in doing so inadvertently would cause
network devices without a PCI device to not be added to the node device
database. Thus, network devices having a "computer" as a parent, such
as "net_lo*", "net_virbr*", "net_tun*", "net_vnet*", etc. were not added.
Alter the check to not even check for Switchdev bits if no PCI device found.
The command tries to match interface in domain definition by MAC
address or interface name. However, since it's possible to
configure two interfaces with the same MAC address, it may
happen that the XPath returns two or more nodes. We should check
for that.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1497396
The other APIs accept both, ifname and MAC address. There's no
reason virDomainInterfaceStats can't do the same.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Every caller reports the error themselves. Might as well move it
into the function and thus unify it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1497396
The current implementation reads the stats from the host.
However, this doesn't work for all types of interfaces as not all
of them have a representation in the host. For instance,
interface type='user' doesn't.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Let's use the RWObjectLockable for the various list lock mgmt.
Only time need Write lock will be for Add/Remove logic.
Signed-off-by: John Ferlan <jferlan@redhat.com>
The command "info migrate" of qemu outputs the dirty-pages-rate during
migration, but page size is different in different architectures. So
page size should be output to calculate dirty pages in bytes.
Page size is already implemented with commit
030ce1f8612215fcbe9d353dfeaeb2937f8e3f94 in qemu.
Now Implement the counter-part in libvirt.
Signed-off-by: Chao Fan <fanc.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
libvirtd throws unhandled signal 11 on ppc while running
virsh cpu-compare with missing model tag in the xml. This
patch errors out in such situation.
Signed-off-by: Nitesh Konkar <nitkon12@linux.vnet.ibm.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Installing dead README symlink only is pretty useless.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Parse the -M (or -machine) command line option before starting
processing in earnest and have a fallback ready in case it's not
present, so that while parsing other options we can rely on
def->os.machine being initialized.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1379218
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
This commit fixes the deadlock introduced by commit
0980764dee. The call getgrouplist() of
the glibc library isn't safe to be called in between fork and
exec (see commit 75c125641a).
Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Fixes: 0980764dee ("util: share code between virExec and virCommandExec")
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
These functions are used by an upcoming commit.
Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Commit b482925c added ptrace rule for the apparmor profiles,
but one was missed in the libvirtd profile for dnsmasq. It was
overlooked since the test machine did not have an active libvirt
network requiring dnsmasq that was also set to autostart. With
one active and set to autostart, the following denial is observed
in audit.log when restarting libvirtd
type=AVC msg=audit(1507320136.306:298): apparmor="DENIED" \
operation="ptrace" profile="/usr/sbin/libvirtd" pid=5472 \
comm="libvirtd" requested_mask="trace" denied_mask="trace" \
peer="/usr/sbin/dnsmasq"
With an active network, I suspect a libvirtd restart causes access
to /proc/<dnsmasq-pid>/*, hence the resulting denial. As a nasty
side affect of the denial, libvirtd thinks it needs to spawn a
dnsmasq process even though one is already running for the network.
E.g. after two libvirtd restarts
dnsmasq 1683 0.0 0.0 51188 2612 ? S 12:03 0:00 \
/usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf \
--leasefile-ro --dhcp-script=/usr/lib64/libvirt/libvirt_leaseshelper
root 1684 0.0 0.0 51160 576 ? S 12:03 0:00 \
/usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf \
--leasefile-ro --dhcp-script=/usr/lib64/libvirt/libvirt_leaseshelper
dnsmasq 4706 0.0 0.0 51188 2572 ? S 13:54 0:00 \
/usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf \
--leasefile-ro --dhcp-script=/usr/lib64/libvirt/libvirt_leaseshelper
root 4707 0.0 0.0 51160 572 ? S 13:54 0:00 \
/usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf \
--leasefile-ro --dhcp-script=/usr/lib64/libvirt/libvirt_leaseshelper
dnsmasq 4791 0.0 0.0 51188 2580 ? S 13:56 0:00 \
/usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf \
--leasefile-ro --dhcp-script=/usr/lib64/libvirt/libvirt_leaseshelper
root 4792 0.0 0.0 51160 572 ? S 13:56 0:00 \
/usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf \
--leasefile-ro --dhcp-script=/usr/lib64/libvirt/libvirt_leaseshelper
A simple fix is to add a ptrace rule for dnsmasq.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-By: Guido Günther <agx@sigxcpu.org>
