Commit Graph

15 Commits

Author SHA1 Message Date
Cole Robinson
b99fdb60b2 libxl: Break out libxlCapsHasPVUSB
No functional change, but this will allow us to mock out the function
in the test suite

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
2019-02-11 17:40:44 -05:00
Daniel P. Berrangé
600462834f Remove all Author(s): lines from source file headers
In many files there are header comments that contain an Author:
statement, supposedly reflecting who originally wrote the code.
In a large collaborative project like libvirt, any non-trivial
file will have been modified by a large number of different
contributors. IOW, the Author: comments are quickly out of date,
omitting people who have made significant contribitions.

In some places Author: lines have been added despite the person
merely being responsible for creating the file by moving existing
code out of another file. IOW, the Author: lines give an incorrect
record of authorship.

With this all in mind, the comments are useless as a means to identify
who to talk to about code in a particular file. Contributors will always
be better off using 'git log' and 'git blame' if they need to  find the
author of a particular bit of code.

This commit thus deletes all Author: comments from the source and adds
a rule to prevent them reappearing.

The Copyright headers are similarly misleading and inaccurate, however,
we cannot delete these as they have legal meaning, despite being largely
inaccurate. In addition only the copyright holder is permitted to change
their respective copyright statement.

Reviewed-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-12-13 16:08:38 +00:00
Marek Marczykowski-Górecki
aca7ff5f70 libxl: add support for PVH
Since this is something between PV and HVM, it makes sense to put the
setting in place where domain type is specified.
To enable it, use <os><type machine="xenpvh">xenpvh</type></os>. It is
also included in capabilities.xml, for every supported HVM guest type - it
doesn't seems to be any other requirement (besides new enough Xen).

Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Jim Fehlig <jfehlig@suse.com>
2018-11-26 16:31:21 -07:00
Jiri Denemark
a62dca833e cpu: Drop unused parameter from cpuDecode
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>
2017-10-16 09:21:52 +02:00
Jiri Denemark
fd885a06a0 cpu: Use virDomainCapsCPUModelsPtr in cpu driver APIs
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>
2017-10-16 09:21:52 +02:00
Wim ten Have
bf12395230 libxl: report numa sibling distances on host capabilities
When running on a NUMA machine, populate the sibling node
and distance information using data supplied by Xen.

With locality distances information, under Xen, new host
capabilities would like:

    <topology>
      <cells num='4'>
        <cell id='0'>
          <memory unit='KiB'>263902380</memory>
          <distances>
            <sibling id='0' value='10'/>
            <sibling id='1' value='21'/>
          </distances>
          ...
        </cell>
        ...
      </cells>
      ...
    </topology>

Signed-off-by: Wim ten Have <wim.ten.have@oracle.com>
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Jim Fehlig <jfehlig@suse.com>
2017-05-10 17:15:25 -06:00
Jiri Denemark
d3f831a97a cpu_x86: Make virCPUx86DataAddCPUID work with virCPUDataPtr
The CPU driver provides APIs to create and free virCPUDataPtr. Thus all
APIs exported from the driver should work with that rather than
requiring the caller to pass a pointer to an internal part of the
structure.

In other words

    virCPUx86DataAddCPUID(cpudata, &cpuid)

is much better than the original

    virCPUx86DataAddCPUID(&cpudata->data.x86, &cpuid)

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-02-24 14:10:57 +01:00
Jiri Denemark
f6d55a5f42 cpu: Rework cpuDataFree
The new API is called virCPUDataFree. Individual CPU drivers are no
longer required to implement their own freeing function unless they need
to free architecture specific data from virCPUData.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-02-24 14:10:57 +01:00
Jiri Denemark
035d81b10a cpu_x86: Drop virCPUx86MakeData and use virCPUDataNew
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-02-24 14:10:57 +01:00
Jim Fehlig
c89a6e7878 libxl: use init and dispose functions with libxl_physinfo
The typical pattern when calling libxl functions that populate a
structure is

  libxl_foo foo;
  libxl_foo_init(&foo);
  libxl_get_foo(ctx, &foo);
  ...
  libxl_foo_dispose(&foo);

Fix several instances of libxl_physinfo missing the init and
dispose calls.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2017-02-08 09:12:00 -07:00
Joao Martins
17322e5518 libxl: describe host cpu features based on hwcaps
Parse libxl_hwcap accounting for versions since Xen 4.4 - Xen 4.7.
libxl_hwcaps is a set of cpuid leaves output that is described in [0] or
[1] in Xen 4.7. This is a collection of CPUID leaves that we version
in libvirt whenever feature words are reordered or added. Thus we keep the
common ones in one struct and others for each version. Since
libxl_hwcaps doesn't appear to have a stable format across all supported
versions thus we need to keep track of changes as a compromise until it's
exported in xen libxl API. We don't fail in initializing the driver in case
parsing of hwcaps failed for that reason. In addition, change the notation
on PAE feature such that is easier to read which bit it corresponds.

[0] xen/include/asm-x86/cpufeature.h
[1] xen/include/public/arch-x86/cpufeatureset.h

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
2016-09-12 12:49:03 +02:00
Joao Martins
3d54305e1c libxl: describe host topology in capabilities
Add support for describing cpu topology in host cpu element.  In doing
so, refactor hwcaps part to its own helper namely libxlCapsInitCPU to
handle all host cpu related operations, including topology.

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
2016-09-12 12:49:03 +02:00
Jim Fehlig
8bab1e7c05 libxl: add USB to hostdev domcapabilities
Commit 2a58ed0b added support for creating guests with USB
hostdevs. Commit fc21d10 later added support for hotplut of
USB hostdevs. Advertise support for USB hostdevs in the
domcapabilities.

In addition add the appropriate caps for USB support on
domaincapstest when libvirt is built on a Xen with
LIBXL_HAVE_PVUSB. Otherwise domaincapstest would fail i.e.
testing the wrong domain capabilities.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
2016-06-17 14:25:02 -06:00
Jim Fehlig
11567cf66f libxl: implement connectGetDomainCapabilities
Add domain capabilities for PV and HVM domains.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2016-06-13 14:13:17 -06:00
Jim Fehlig
cb110a67e3 libxl: introduce libxl_capabilities.{ch}
Move capabilities code out of libxl_conf.{ch} and into new
libxl_capabilities.{ch} files.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2016-06-13 14:13:16 -06:00