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cpu_map: Distinguish Cascadelake-Server from Skylake-Server

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The signatures of these two CPU model differ only in stepping as both
report family 6 and model 85. Skylake-Server uses stepping 4 or less and
Cascadelake-Server uses stepping 5..7.

https://bugzilla.redhat.com/show_bug.cgi?id=1761678

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Jiri Denemark
2020-03-26 21:55:14 +01:00
parent 3714779b15
commit 5d6059f8ec
7 changed files with 11 additions and 9 deletions
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5
tests/cputestdata/x86_64-cpuid-Xeon-Gold-6130-json.xml
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@@ -1,16 +1,17 @@
<cpu mode='custom' match='exact'>
<model fallback='forbid'>Cascadelake-Server</model>
<model fallback='forbid'>Skylake-Server-IBRS</model>
<vendor>Intel</vendor>
<feature policy='require' name='ss'/>
<feature policy='require' name='vmx'/>
<feature policy='require' name='hypervisor'/>
<feature policy='require' name='tsc_adjust'/>
<feature policy='require' name='clflushopt'/>
<feature policy='require' name='umip'/>
<feature policy='require' name='pku'/>
<feature policy='require' name='md-clear'/>
<feature policy='require' name='stibp'/>
<feature policy='require' name='arch-capabilities'/>
<feature policy='require' name='ssbd'/>
<feature policy='require' name='xsaves'/>
<feature policy='require' name='skip-l1dfl-vmentry'/>
<feature policy='disable' name='avx512vnni'/>
</cpu>