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From f1926a0cb9147ce54484858f5e0f7376ee9ac648 Mon Sep 17 00:00:00 2001
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Message-Id: <f1926a0cb9147ce54484858f5e0f7376ee9ac648@dist-git>
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From: Jiri Denemark <jdenemar@redhat.com>
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Date: Tue, 26 May 2020 10:59:37 +0200
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Subject: [PATCH] cpu_map: Distinguish Cascadelake-Server from Skylake-Server
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The signatures of these two CPU model differ only in stepping as both
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report family 6 and model 85. Skylake-Server uses stepping 4 or less and
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Cascadelake-Server uses stepping 5..7.
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https://bugzilla.redhat.com/show_bug.cgi?id=1761678
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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(cherry picked from commit 5d6059f8ec16d64f240dc5e6413ca55a3b46b3f7)
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https://bugzilla.redhat.com/show_bug.cgi?id=1840010
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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Message-Id: <8711c401083e2605e7d8734764a5fe1b092749b0.1590483392.git.jdenemar@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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---
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src/cpu_map/x86_Cascadelake-Server-noTSX.xml | 2 +-
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src/cpu_map/x86_Cascadelake-Server.xml | 2 +-
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src/cpu_map/x86_Skylake-Server-IBRS.xml | 2 +-
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src/cpu_map/x86_Skylake-Server-noTSX-IBRS.xml | 2 +-
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src/cpu_map/x86_Skylake-Server.xml | 2 +-
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tests/cputestdata/x86_64-cpuid-Xeon-Gold-6130-guest.xml | 5 +++--
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tests/cputestdata/x86_64-cpuid-Xeon-Gold-6130-json.xml | 5 +++--
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7 files changed, 11 insertions(+), 9 deletions(-)
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diff --git a/src/cpu_map/x86_Cascadelake-Server-noTSX.xml b/src/cpu_map/x86_Cascadelake-Server-noTSX.xml
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index 459174a30d..bfd4629836 100644
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--- a/src/cpu_map/x86_Cascadelake-Server-noTSX.xml
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+++ b/src/cpu_map/x86_Cascadelake-Server-noTSX.xml
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@@ -1,7 +1,7 @@
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<cpus>
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<model name='Cascadelake-Server-noTSX'>
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<decode host='on' guest='off'/>
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- <signature family='6' model='85'/>
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+ <signature family='6' model='85' stepping='5-7'/>
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<vendor name='Intel'/>
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<feature name='3dnowprefetch'/>
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<feature name='abm'/>
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diff --git a/src/cpu_map/x86_Cascadelake-Server.xml b/src/cpu_map/x86_Cascadelake-Server.xml
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index d7ec42f57e..335e9cb584 100644
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--- a/src/cpu_map/x86_Cascadelake-Server.xml
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+++ b/src/cpu_map/x86_Cascadelake-Server.xml
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@@ -1,7 +1,7 @@
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<cpus>
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<model name='Cascadelake-Server'>
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<decode host='on' guest='on'/>
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- <signature family='6' model='85'/>
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+ <signature family='6' model='85' stepping='5-7'/>
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<vendor name='Intel'/>
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<feature name='3dnowprefetch'/>
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<feature name='abm'/>
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diff --git a/src/cpu_map/x86_Skylake-Server-IBRS.xml b/src/cpu_map/x86_Skylake-Server-IBRS.xml
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index bd6b6457ad..9fb3488809 100644
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--- a/src/cpu_map/x86_Skylake-Server-IBRS.xml
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+++ b/src/cpu_map/x86_Skylake-Server-IBRS.xml
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@@ -1,7 +1,7 @@
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<cpus>
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<model name='Skylake-Server-IBRS'>
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<decode host='on' guest='on'/>
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- <signature family='6' model='85'/>
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+ <signature family='6' model='85' stepping='0-4'/>
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<vendor name='Intel'/>
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<feature name='3dnowprefetch'/>
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<feature name='abm'/>
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diff --git a/src/cpu_map/x86_Skylake-Server-noTSX-IBRS.xml b/src/cpu_map/x86_Skylake-Server-noTSX-IBRS.xml
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index c2b7de40e8..c162c0acc3 100644
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--- a/src/cpu_map/x86_Skylake-Server-noTSX-IBRS.xml
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+++ b/src/cpu_map/x86_Skylake-Server-noTSX-IBRS.xml
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@@ -1,7 +1,7 @@
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<cpus>
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<model name='Skylake-Server-noTSX-IBRS'>
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<decode host='on' guest='off'/>
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- <signature family='6' model='85'/>
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+ <signature family='6' model='85' stepping='0-4'/>
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<vendor name='Intel'/>
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<feature name='3dnowprefetch'/>
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<feature name='abm'/>
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diff --git a/src/cpu_map/x86_Skylake-Server.xml b/src/cpu_map/x86_Skylake-Server.xml
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index f96875a85f..e022d94c84 100644
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--- a/src/cpu_map/x86_Skylake-Server.xml
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+++ b/src/cpu_map/x86_Skylake-Server.xml
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@@ -1,7 +1,7 @@
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<cpus>
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<model name='Skylake-Server'>
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<decode host='on' guest='on'/>
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- <signature family='6' model='85'/>
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+ <signature family='6' model='85' stepping='0-4'/>
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<vendor name='Intel'/>
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<feature name='3dnowprefetch'/>
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<feature name='abm'/>
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diff --git a/tests/cputestdata/x86_64-cpuid-Xeon-Gold-6130-guest.xml b/tests/cputestdata/x86_64-cpuid-Xeon-Gold-6130-guest.xml
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index cfb0eb982d..c21cb1e600 100644
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--- a/tests/cputestdata/x86_64-cpuid-Xeon-Gold-6130-guest.xml
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+++ b/tests/cputestdata/x86_64-cpuid-Xeon-Gold-6130-guest.xml
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@@ -1,5 +1,5 @@
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<cpu mode='custom' match='exact'>
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- <model fallback='forbid'>Cascadelake-Server</model>
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+ <model fallback='forbid'>Skylake-Server-IBRS</model>
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<vendor>Intel</vendor>
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<feature policy='require' name='ds'/>
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<feature policy='require' name='acpi'/>
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@@ -20,14 +20,15 @@
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<feature policy='require' name='osxsave'/>
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<feature policy='require' name='tsc_adjust'/>
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<feature policy='require' name='cmt'/>
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+ <feature policy='require' name='clflushopt'/>
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<feature policy='require' name='intel-pt'/>
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<feature policy='require' name='pku'/>
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<feature policy='require' name='ospke'/>
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<feature policy='require' name='md-clear'/>
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<feature policy='require' name='stibp'/>
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+ <feature policy='require' name='ssbd'/>
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<feature policy='require' name='xsaves'/>
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<feature policy='require' name='mbm_total'/>
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<feature policy='require' name='mbm_local'/>
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<feature policy='require' name='invtsc'/>
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- <feature policy='disable' name='avx512vnni'/>
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</cpu>
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diff --git a/tests/cputestdata/x86_64-cpuid-Xeon-Gold-6130-json.xml b/tests/cputestdata/x86_64-cpuid-Xeon-Gold-6130-json.xml
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index 968d904557..b482043ccf 100644
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--- a/tests/cputestdata/x86_64-cpuid-Xeon-Gold-6130-json.xml
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+++ b/tests/cputestdata/x86_64-cpuid-Xeon-Gold-6130-json.xml
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@@ -1,16 +1,17 @@
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<cpu mode='custom' match='exact'>
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- <model fallback='forbid'>Cascadelake-Server</model>
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+ <model fallback='forbid'>Skylake-Server-IBRS</model>
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<vendor>Intel</vendor>
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<feature policy='require' name='ss'/>
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<feature policy='require' name='vmx'/>
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<feature policy='require' name='hypervisor'/>
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<feature policy='require' name='tsc_adjust'/>
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+ <feature policy='require' name='clflushopt'/>
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<feature policy='require' name='umip'/>
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<feature policy='require' name='pku'/>
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<feature policy='require' name='md-clear'/>
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<feature policy='require' name='stibp'/>
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<feature policy='require' name='arch-capabilities'/>
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+ <feature policy='require' name='ssbd'/>
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<feature policy='require' name='xsaves'/>
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<feature policy='require' name='skip-l1dfl-vmentry'/>
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- <feature policy='disable' name='avx512vnni'/>
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</cpu>
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--
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2.26.2
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