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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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/cpu_map/x86_Cascadelake-Server-noTSX.xml
View File

@ -1,7 +1,7 @@
<cpus>
<model name='Cascadelake-Server-noTSX'>
<decode host='on' guest='off'/>
<signature family='6' model='85'/> <!-- 050654 -->
<signature family='6' model='85' stepping='5-7'/> <!-- 050654 -->
<vendor name='Intel'/>
<feature name='3dnowprefetch'/>
<feature name='abm'/>

2
src/cpu_map/x86_Cascadelake-Server.xml
View File

@ -1,7 +1,7 @@
<cpus>
<model name='Cascadelake-Server'>
<decode host='on' guest='on'/>
<signature family='6' model='85'/> <!-- 050654 -->
<signature family='6' model='85' stepping='5-7'/> <!-- 050654 -->
<vendor name='Intel'/>
<feature name='3dnowprefetch'/>
<feature name='abm'/>

2
src/cpu_map/x86_Skylake-Server-IBRS.xml
View File

@ -1,7 +1,7 @@
<cpus>
<model name='Skylake-Server-IBRS'>
<decode host='on' guest='on'/>
<signature family='6' model='85'/> <!-- 050654 -->
<signature family='6' model='85' stepping='0-4'/> <!-- 050654 -->
<vendor name='Intel'/>
<feature name='3dnowprefetch'/>
<feature name='abm'/>

2
src/cpu_map/x86_Skylake-Server-noTSX-IBRS.xml
View File

@ -1,7 +1,7 @@
<cpus>
<model name='Skylake-Server-noTSX-IBRS'>
<decode host='on' guest='off'/>
<signature family='6' model='85'/> <!-- 050654 -->
<signature family='6' model='85' stepping='0-4'/> <!-- 050654 -->
<vendor name='Intel'/>
<feature name='3dnowprefetch'/>
<feature name='abm'/>

2
src/cpu_map/x86_Skylake-Server.xml
View File

@ -1,7 +1,7 @@
<cpus>
<model name='Skylake-Server'>
<decode host='on' guest='on'/>
<signature family='6' model='85'/> <!-- 050654 -->
<signature family='6' model='85' stepping='0-4'/> <!-- 050654 -->
<vendor name='Intel'/>
<feature name='3dnowprefetch'/>
<feature name='abm'/>

5
tests/cputestdata/x86_64-cpuid-Xeon-Gold-6130-guest.xml
View File

@ -1,5 +1,5 @@
<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='ds'/>
<feature policy='require' name='acpi'/>
@ -20,14 +20,15 @@
<feature policy='require' name='osxsave'/>
<feature policy='require' name='tsc_adjust'/>
<feature policy='require' name='cmt'/>
<feature policy='require' name='clflushopt'/>
<feature policy='require' name='intel-pt'/>
<feature policy='require' name='pku'/>
<feature policy='require' name='ospke'/>
<feature policy='require' name='md-clear'/>
<feature policy='require' name='stibp'/>
<feature policy='require' name='ssbd'/>
<feature policy='require' name='xsaves'/>
<feature policy='require' name='mbm_total'/>
<feature policy='require' name='mbm_local'/>
<feature policy='require' name='invtsc'/>
<feature policy='disable' name='avx512vnni'/>
</cpu>

5
tests/cputestdata/x86_64-cpuid-Xeon-Gold-6130-json.xml
View File

@ -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>