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From bb9f39342d4ea6b76b67378f514f52a9627206b9 Mon Sep 17 00:00:00 2001
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Message-Id: <bb9f39342d4ea6b76b67378f514f52a9627206b9@dist-git>
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From: Tim Wiederhake <twiederh@redhat.com>
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Date: Wed, 3 Mar 2021 11:11:52 +0100
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Subject: [PATCH] cpumap: Add support for ibrs CPU feature
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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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Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
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Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
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(cherry picked from commit 5c17a7ba41670f3182186c06e621995b5d03fc95)
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https://bugzilla.redhat.com/show_bug.cgi?id=1926864
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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Message-Id: <0aee3baa35e04f56e3c95bb2f60c8a17d7806e7a.1614766279.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_features.xml | 3 +++
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tests/cputestdata/x86_64-cpuid-EPYC-7502-32-Core-guest.xml | 1 +
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tests/cputestdata/x86_64-cpuid-EPYC-7502-32-Core-host.xml | 1 +
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3 files changed, 5 insertions(+)
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diff --git a/src/cpu_map/x86_features.xml b/src/cpu_map/x86_features.xml
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index 83d8e641a8..abefb7928e 100644
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--- a/src/cpu_map/x86_features.xml
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+++ b/src/cpu_map/x86_features.xml
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@@ -501,6 +501,9 @@
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<feature name='ibpb'>
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<cpuid eax_in='0x80000008' ebx='0x00001000'/>
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</feature>
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+ <feature name='ibrs'>
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+ <cpuid eax_in='0x80000008' ebx='0x00004000'/>
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+ </feature>
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<feature name='amd-stibp'>
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<cpuid eax_in='0x80000008' ebx='0x00008000'/>
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</feature>
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diff --git a/tests/cputestdata/x86_64-cpuid-EPYC-7502-32-Core-guest.xml b/tests/cputestdata/x86_64-cpuid-EPYC-7502-32-Core-guest.xml
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index 6d95b508b2..40e7912398 100644
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--- a/tests/cputestdata/x86_64-cpuid-EPYC-7502-32-Core-guest.xml
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+++ b/tests/cputestdata/x86_64-cpuid-EPYC-7502-32-Core-guest.xml
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@@ -17,6 +17,7 @@
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<feature policy='require' name='topoext'/>
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<feature policy='require' name='perfctr_nb'/>
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<feature policy='require' name='invtsc'/>
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+ <feature policy='require' name='ibrs'/>
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<feature policy='require' name='amd-ssbd'/>
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<feature policy='require' name='lbrv'/>
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<feature policy='require' name='svm-lock'/>
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diff --git a/tests/cputestdata/x86_64-cpuid-EPYC-7502-32-Core-host.xml b/tests/cputestdata/x86_64-cpuid-EPYC-7502-32-Core-host.xml
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index 65eaeabdd0..9f8108cdaa 100644
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--- a/tests/cputestdata/x86_64-cpuid-EPYC-7502-32-Core-host.xml
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+++ b/tests/cputestdata/x86_64-cpuid-EPYC-7502-32-Core-host.xml
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@@ -18,6 +18,7 @@
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<feature name='topoext'/>
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<feature name='perfctr_nb'/>
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<feature name='invtsc'/>
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+ <feature name='ibrs'/>
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<feature name='amd-ssbd'/>
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<feature name='lbrv'/>
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<feature name='svm-lock'/>
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--
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2.30.0
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