Currently the QEMU driver will call directly into the network driver
impl to modify resolve the atual type of NICs with type=network. It
has todo this before it has allocated the actual NIC. This introduces
a callback system to allow us to decouple the QEMU driver from the
network driver.
This is a short term step, as it ought to be possible to achieve the
same end goal by simply querying XML via the public network API. The
QEMU code in question though, has no virConnectPtr conveniently
available at this time.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The QEMU driver loadable module needs to be able to resolve all ELF
symbols it references against libvirt.so. Some of its symbols can only
be resolved against the storage_driver.so loadable module which creates
a hard dependancy between them. By moving the storage file backend
framework into the util directory, this gets included directly in the
libvirt.so library. The actual backend implementations are still done as
loadable modules, so this doesn't re-add deps on gluster libraries.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The function only reduces the size of the bitmap thus we can use the
appropriate shrinking function which also does not have any return
value.
Since virBitmapShrink now does not return any value callers need to be
fixed as well.
Add the DUMP_COMPLETED check to the capabilities. This is the
mechanism used to determine whether the dump-guest-memory command
can support the "-detach" option and thus be able to wait on the
event and allow for a query of the progress of the dump.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Move the qemuCaps checks over to qemuDomainControllerDefValidatePCI.
This requires two test updates in order to set the correct capability
bit for an xml2xml test as well as setting up the similar capability
for the pseries memlocktest.
Cachetune for unavailable vCPUs should be cleared the same way vcpupin and other
things do, so let's add tests for it.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Some of the other functions depend on the fact that unused bits and longs are
always zero and it's less error-prone to clear it than fix the other functions.
It's enough to zero out one piece of the map since we're calling realloc() to
get rid of the rest (and updating map_len).
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1540817
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Validate that the virNetServer(Client) RPC APIs are processing the
private data callbacks correctly by passing in non-NULL pointers.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Instead of passing around a virConnectPtr object, just open a connection
to the secret driver at time of use. Opening connections on demand will
be beneficial when the secret driver is in a separate daemon. It also
solves the problem that a number of callers just pass in a NULL
connection today which prevents secret lookup working at all.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
When an implicit controller is added, the model is defined as -1
(IOW: undefined). So, if an implicit SCSI controller was added,
can set the model to the default value if the underlying hypervisor
supports it.
During post parse processing, let's force setting the controller
model to default value if not already set for defined controllers
(e.g. the non implicit ones).
If we're going to add a controller to the domain, let's set the
default SCSI model value if we cannot find another SCSI controller
already present.
NB: Requires updating the live output test data since the model
will now be formatted.
With the current code it is neccessary to call
virNetDaemonNewPostExecRestart()
and then for each server that needs restarting you are supposed
to call
virNetDaemonAddSeverPostExecRestart()
This is fine if there's only ever one server, but as soon as you
have two servers it is impossible to use this design. The code
has no idea which servers were recorded in the JSON state doc,
nor in which order the hash table serialized its keys.
So this patch changes things so that we only call
virNetDaemonNewPostExecRestart()
passing in a callback, which is invoked once for each server
found int he JSON state doc.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
While the QEMU QAPI schema describes 'lun' as a number, the code dealing
with JSON strings does not strictly adhere to this schema and thus
formats the number back as a string. Use the new helper to retrieve both
possibilities.
Note that the formatting code is okay and qemu will accept it as an int.
Tweak also one of the test strings to verify that both formats work
with libvirt.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1540290
These test cases are supposed to verify GIC support works as
expected, and shouldn't concern themselves with other features;
we can trim them down significantly, and make them less likely
to need updating after unrelated changes.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
For vhost-user ports, Open vSwitch acts as the server and QEMU the client.
When OVS crashes or restarts, the QEMU process should be reconnected to
OVS.
Signed-off-by: ZhiPeng Lu <lu.zhipeng@zte.com.cn>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Basically the `cpus` and `tasks` files are not needed, and I've witnessed on a
real system that the schemata file may have spaces prepended to a line, so let's
adjust at least one test so that it reflects what can happen. Also `000`
allocation is invalid and a full mask means it's all free. So adjust for that
too.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
This test initializes capabilities from vircaps2xmldata (since it exists there
already) and then requests list of free bitmaps (all unallocated space) from
virresctrl.c
Desirable outputs are saved in virresctrldata.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
More info in the documentation, this is basically the XML parsing/formatting
support, schemas, tests and documentation for the new cputune/cachetune element
that will get used by following patches.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
This wires up the previously added OEM strings XML schema to be able to
generate comamnd line args for QEMU. This requires QEMU >= 2.12 release
containing this patch:
commit 2d6dcbf93fb01b4a7f45a93d276d4d74b16392dd
Author: Daniel P. Berrange <berrange@redhat.com>
Date: Sat Oct 28 21:51:36 2017 +0100
smbios: support setting OEM strings table
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
We can start qemu with a "cpu,+la57" to set 57-bit vitrual address
space. So VM can be aware that it need to enable 5-level paging.
Corresponding QEMU commits:
al57 6c7c3c21f95dd9af8a0691c0dd29b07247984122
Whenever a different kernel is booted, some capabilities related to KVM
(such as CPUID bits) may change. We need to refresh the cache to see the
changes.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Commit 10c73bf1 fixed a bug that I had introduced back in commit
70249927 - if a vhost-scsi device had no manually assigned PCI
address, one wouldn't be assigned automatically. There was a slight
problem with the logic of the fix though - in the case of domains with
pcie-root (e.g. those with a q35 machinetype),
qemuDomainDeviceCalculatePCIConnectFlags() will attempt to determine
if the host-side PCI device is Express or legacy by examining sysfs
based on the host-side PCI address stored in
hostdev->source.subsys.u.pci.addr, but that part of the union is only
valid for PCI hostdevs, *not* for SCSI hostdevs. So we end up trying
to read sysfs for some probably-non-existent device, which fails, and
the function virPCIDeviceIsPCIExpress() returns failure (-1).
By coincidence, the return value is being examined as a boolean, and
since -1 is true, we still end up assigning the vhost-scsi device to
an Express slot, but that is just by chance (and could fail in the
case that the gibberish in the "hostside PCI address" was the address
of a real device that happened to be legacy PCI).
Since (according to Paolo Bonzini) vhost-scsi devices appear just like
virtio-scsi devices in the guest, they should follow the same rules as
virtio devices when deciding whether they should be placed in an
Express or a legacy slot. That's accomplished in this patch by
returning early with virtioFlags, rather than erroneously using
hostdev->source.subsys.u.pci.addr. It also adds a test case for PCIe
to assure it doesn't get broken in the future.
This is a variant of EPYC with indirect branch prediction protection.
The only difference between EPYC and EPYC-IBPB is the added "ibpb"
feature.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
This is a variant of Skylake-Server with indirect branch prediction
protection. The only difference between Skylake-Server and
Skylake-Server-IBRS is the added "spec-ctrl" feature.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
This is a variant of Skylake-Client with indirect branch prediction
protection. The only difference between Skylake-Client and
Skylake-Client-IBRS is the added "spec-ctrl" feature.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
This is a variant of Broadwell with indirect branch prediction
protection. The only difference between Broadwell and Broadwell-IBRS is
the added "spec-ctrl" feature.
The Broadwell-IBRS model in QEMU is a bit different since Broadwell got
several additional features since we added it in cpu_map.xml:
abm, arat, f16c, rdrand, vme, xsaveopt
Adding them only to the -IBRS variant would confuse our CPU detection
code.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
This is a variant of Haswell-noTSX with indirect branch prediction
protection. The only difference between Haswell-noTSX and
Haswell-noTSX-IBRS is the added "spec-ctrl" feature.
The Haswell-noTSX-IBRS model in QEMU is a bit different since
Haswell-noTSX got several additional features since we added it in
cpu_map.xml:
arat, abm, f16c, rdrand, vme, xsaveopt
Adding them only to the -IBRS variant would confuse our CPU detection
code.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
The CPU contains the updated microcode for CVE-2017-5715.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
The CPU contains the updated microcode for CVE-2017-5715.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
The CPU contains the updated microcode for CVE-2017-5715.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
The CPU contains the updated microcode for CVE-2017-5715.
The *-guest.xml and *-json.xml CPU definitions use Skylake-Client CPU
model rather than Broadwell. This is similar to Xeon-E5-2650-v4 and it
is caused by our CPU model selection code when no model matches the CPU
signature (family + model). We'd need to maintain a complete list of CPU
signatures for our CPU models to fix this.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
The CPU contains the updated microcode for CVE-2017-5715.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Let's add a test case for S390 with CPU frequency information available.
Test data is sampled from an IBM z13 system running kernel 4.14 on LPAR.
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Signed-off-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Let's add a testcase for a S390 system running kernel version 4.14 on
LPAR.
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Signed-off-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
The cpuidMap in cpu-cpuid.py was created for converting old data files
(with QEMU's feature-words bits) to the new model-expansion based data.
When I added tests for CPU live update based on disabled/enabled feature
lists I shamelessly used the existing cpuidMap for generating the
*-{enabled,disabled}.xml data files. Thus any new CPUID bits which are
not present in the original cpuidMap would be ignored. The correct thing
to do is to use cpu_map.xml.
All data files were fixed by running the following command:
./cpu-cpuid.py diff *.json
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Some ARM platforms, such as the original Raspberry Pi, report the
CPU frequency in the BogoMIPS field of /proc/cpuinfo, so libvirt
parsed that field and returned it through its API.
However, not only many more boards don't report any value there,
but several - including ARMv8-based server hardware, and even the
more recent Raspberry Pi 3 - use this field as originally intended:
to report the BogoMIPS value instead of the CPU frequency.
Since we have no way of detecting how the field is being used,
it's better to report no information at all rather than something
ludicrous like "your shiny 96-core aarch64 virtualization host's
CPUs are running at a whopping 100 MHz".
Partially-resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1206353
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Make the parser both more strict, by not ignoring errors reported
by virStrToLong_ui(), and more permissive, by not failing due to
unrelated fields which just happen to have a know prefix and
accepting any amount of whitespace before the numeric value.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
When the -machine pseries,max-cpu-compat=X is supported use
machine parameter instead of -cpu host,compat=X parameter as
that is deprecated now with qemu >= v2.10.
Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1519146
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
A microcode update can cause the CPUID bits to change; an example
from the past was the update that disabled TSX on several Haswell
and Broadwell machines.
Therefore, place microcode version in the virQEMUCaps struct and
XML, and rebuild the cache if the versions do not match.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
In virDomainDefMaybeAddHostdevSCSIcontroller when we add a new
controller because someone neglected to add one or we're adding
one because the existing one is full, we should copy over the
model number from the existing controller since whatever we
create should at least have the same characteristics as the one
we cannot use because it's full.
NB: This affects the existing hostdev-scsi-autogen-address test
which would add a default ('lsi') SCSI controller for the various
scsi_host's that would create a controller for the hostdev.
Enable testing for 'auth_pending' in the virnetdaemon test case.
Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
There is a race between virNetServerProcessClients (main thread) and
remoteDispatchAuthList/remoteDispatchAuthPolkit/remoteSASLFinish (worker
thread) that can lead to decrementing srv->nclients_unauth when it's
zero. Since virNetServerCheckLimits relies on the value
srv->nclients_unauth the underrun causes libvirtd to stop accepting
new connections forever.
Example race scenario (assuming libvirtd is using policykit and the
client is privileged):
1. The client calls the RPC remoteDispatchAuthList =>
remoteDispatchAuthList is executed on a worker thread (Thread
T1). We're assuming now the execution stops for some time before
the line 'virNetServerClientSetAuth(client, 0)'
2. The client closes the connection irregularly. This causes the
event loop to wake up and virNetServerProcessClient to be
called (on the main thread T0). During the
virNetServerProcessClients the srv lock is hold. The condition
virNetServerClientNeedAuth(client) will be checked and as the
authentication is not finished right now
virNetServerTrackCompletedAuthLocked(srv) will be called =>
--srv->nclients_unauth => 0
3. The Thread T1 continues, marks the client as authenticated, and
calls virNetServerTrackCompletedAuthLocked(srv) =>
--srv->nclients_unauth => --0 => wrap around as nclient_unauth is
unsigned
4. virNetServerCheckLimits(srv) will disable the services forever
To fix it, add an auth_pending field to the client struct so that it
is now possible to determine if the authentication process has already
been handled for this client.
Setting the authentication method to none for the client in
virNetServerProcessClients is not a proper way to indicate that the
counter has been decremented, as this would imply that the client is
authenticated.
Additionally, adjust the existing test cases for this new field.
Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Direct leak of 104 byte(s) in 1 object(s) allocated from:
#0 0x7f904bfbe12b (/lib64/liblsan.so.0+0xe12b)
#1 0x7f904ba0ad67 in virAlloc ../../src/util/viralloc.c:144
#2 0x7f904bbc11a4 in virNetMessageNew ../../src/rpc/virnetmessage.c:42
#3 0x7f904bbb8e77 in virNetServerClientNewInternal ../../src/rpc/virnetserverclient.c:392
#4 0x7f904bbb9921 in virNetServerClientNew ../../src/rpc/virnetserverclient.c:440
#5 0x402ce5 in testIdentity ../../tests/virnetserverclienttest.c:55
#6 0x403bed in virTestRun ../../tests/testutils.c:180
#7 0x402c1e in mymain ../../tests/virnetserverclienttest.c:146
#8 0x404c80 in virTestMain ../../tests/testutils.c:1119
#9 0x4030d5 in main ../../tests/virnetserverclienttest.c:152
#10 0x7f9047f7f889 in __libc_start_main (/lib64/libc.so.6+0x20889)
Indirect leak of 4 byte(s) in 1 object(s) allocated from:
#0 0x7f904bfbe12b (/lib64/liblsan.so.0+0xe12b)
#1 0x7f904ba0adc7 in virAllocN ../../src/util/viralloc.c:191
#2 0x7f904bbb8ec7 in virNetServerClientNewInternal ../../src/rpc/virnetserverclient.c:395
#3 0x7f904bbb9921 in virNetServerClientNew ../../src/rpc/virnetserverclient.c:440
#4 0x402ce5 in testIdentity ../../tests/virnetserverclienttest.c:55
#5 0x403bed in virTestRun ../../tests/testutils.c:180
#6 0x402c1e in mymain ../../tests/virnetserverclienttest.c:146
#7 0x404c80 in virTestMain ../../tests/testutils.c:1119
#8 0x4030d5 in main ../../tests/virnetserverclienttest.c:152
#9 0x7f9047f7f889 in __libc_start_main (/lib64/libc.so.6+0x20889)
SUMMARY: LeakSanitizer: 108 byte(s) leaked in 2 allocation(s).
Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1448149
If a domain has no numa nodes, that means we don't put any
memory-backend-file onto the qemu command line. That in turn
means we can't set access='shared'. Therefore, we should produce
an error instead of ignoring the setting silently.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
