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  1. 03 8月, 2017 1 次提交
  3. 02 8月, 2017 1 次提交
  5. 21 7月, 2017 1 次提交
    • S
      qemu: Enable NUMA node tag in pci-root for PPC64 · e5a05799
      由 Shivaprasad G Bhat 提交于 
      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: NShivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>
      e5a05799
  7. 20 7月, 2017 1 次提交
  9. 15 7月, 2017 5 次提交
  11. 11 7月, 2017 4 次提交
  13. 20 6月, 2017 1 次提交
  15. 13 6月, 2017 3 次提交
  17. 08 6月, 2017 3 次提交
  19. 26 5月, 2017 1 次提交
  21. 16 5月, 2017 2 次提交
  23. 15 5月, 2017 2 次提交
  25. 21 4月, 2017 1 次提交
    • M
      conf, docs: Add support for coalesce setting(s) · 523c9960
      由 Martin Kletzander 提交于 
      We are currently parsing only rx/frames/max because that's the only
value that makes sense for us.  The tun device just added support for
this one and the others are only supported by hardware devices which
we don't need to worry about as the only way we'd pass those to the
domain is using <hostdev/> or <interface type='hostdev'/>.  And in
those cases the guest can modify the settings itself.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>
      523c9960
  27. 11 4月, 2017 2 次提交
  29. 04 4月, 2017 1 次提交
  31. 27 3月, 2017 1 次提交
  33. 17 3月, 2017 2 次提交
  35. 15 3月, 2017 3 次提交
    • M
      qemu: Introduce label-size for NVDIMMs · e433546b
      由 Michal Privoznik 提交于 
      For NVDIMM devices it is optionally possible to specify the size
of internal storage for namespaces. Namespaces are a feature that
allows users to partition the NVDIMM for different uses.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
      e433546b
    • M
      conf: Introduce @access to <memory/> · 80af11d3
      由 Michal Privoznik 提交于 
      Now that NVDIMM has found its way into libvirt, users might want
to fine tune some settings for each module separately. One such
setting is 'share=on|off' for the memory-backend-file object.
This setting - just like its name suggest already - enables
sharing the nvdimm module with other applications. Under the hood
it controls whether qemu mmaps() the file as MAP_PRIVATE or
MAP_SHARED.

Yet again, we have such config knob in domain XML, but it's just
an attribute to numa <cell/>. This does not give fine enough
tuning on per-memdevice basis so we need to have the attribute
for each device too.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
      80af11d3
    • M
      Introduce NVDIMM memory model · b4e8a49f
      由 Michal Privoznik 提交于 
      NVDIMM is new type of memory introduced into QEMU 2.6. The idea
is that we have a Non-Volatile memory module that keeps the data
persistent across domain reboots.

At the domain XML level, we already have some representation of
'dimm' modules. Long story short, NVDIMM will utilize the
existing <memory/> element that lives under <devices/> by adding
a new attribute 'nvdimm' to the existing @model and introduce a
new <path/> element for <source/> while reusing other fields. The
resulting XML would appear as:

    <memory model='nvdimm'>
      <source>
        <path>/tmp/nvdimm</path>
      </source>
      <target>
        <size unit='KiB'>523264</size>
        <node>0</node>
      </target>
      <address type='dimm' slot='0'/>
    </memory>

So far, this is just a XML parser/formatter extension. QEMU
driver implementation is in the next commit.

For more info on NVDIMM visit the following web page:

    http://pmem.io/Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
      b4e8a49f
  37. 24 2月, 2017 2 次提交
  39. 09 2月, 2017 1 次提交
    • J
      conf: Add new xml elements for file memorybacking support · bc6d3121
      由 Jaroslav Safka 提交于 
      This part introduces new xml elements for file based
memorybacking support and their parsing.
(It allows vhost-user to be used without hugepages.)

New xml elements:
<memoryBacking>
  <source type="file|anonymous"/>
  <access mode="shared|private"/>
  <allocation mode="immediate|ondemand"/>
</memoryBacking>
      bc6d3121
  41. 26 1月, 2017 1 次提交
  43. 20 1月, 2017 1 次提交
    • M
      qemu: set default vhost-user ifname · 57b5e27d
      由 Michal Privoznik 提交于 
      Based on work of Mehdi Abaakouk <sileht@sileht.net>.

When parsing vhost-user interface XML and no ifname is found we
can try to fill it in in post parse callback. The way this works
is we try to make up interface name from given socket path and
then ask openvswitch whether it knows the interface.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
      57b5e27d