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conf: add support for specifying CPU "dies" parameter

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Recently CPU hardware vendors have started to support a new structure
inside the CPU package topology known as a "die". Thus the hierarchy
is now:

  sockets > dies > cores > threads

This adds support for "dies" in the XML parser, with the value
defaulting to 1 if not specified for backwards compatibility.

For example a system with 64 logical CPUs might report

   <topology sockets="4" dies="2" cores="4" threads="2"/>

Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrangé
2020-01-16 15:11:42 +00:00
parent bd04d63ad9
commit fbf27730a3
98 changed files with 148 additions and 101 deletions
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tests/qemuxml2argvdata/memfd-memory-numa.xml
+1 -1
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@@ -20,7 +20,7 @@
<boot dev='hd'/>
</os>
<cpu>
<topology sockets='1' cores='8' threads='1'/>
<topology sockets='1' dies='1' cores='8' threads='1'/>
<numa>
<cell id='0' cpus='0-7' memory='14680064' unit='KiB'/>
</numa>