59 lines
1.7 KiB
Diff
59 lines
1.7 KiB
Diff
From 790c94e3240549de61881aebb94d4d933252e540 Mon Sep 17 00:00:00 2001
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From: Danilo de Paula <ddepaula@redhat.com>
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Date: Mon, 20 May 2019 18:29:57 +0100
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Subject: [PATCH] target/i386: define md-clear bit
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RH-Author: Danilo de Paula <ddepaula@redhat.com>
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Message-id: <20190520182957.26425-1-ddepaula@redhat.com>
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Patchwork-id: 88110
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O-Subject: [RHEL-8 + RHEL-AV qemu-kvm PATCH] target/i386: define md-clear bit
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Bugzilla: 1703297 1703304 1703310 1707274
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RH-Acked-by: Daniel P. Berrange <berrange@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: John Snow <jsnow@redhat.com>
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From: Paolo Bonzini <pbonzini@redhat.com>
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BZ: 1703310
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BZ: 1703304
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BZ: 1703297
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BZ: 1707274
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branch: rhel-av-8.1.0/master-4.0.0
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BZ: 1705851
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BZ: 1704542
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BZ: 1704538
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BZ: 1704534
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branch: rhel-av-8.0.1
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BZ: 1703308
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BZ: 1703302
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branch: rhel-8.1.0
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md-clear is a new CPUID bit which is set when microcode provides the
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mechanism to invoke a flush of various exploitable CPU buffers by invoking
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the VERW instruction.
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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target/i386/cpu.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/target/i386/cpu.c b/target/i386/cpu.c
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index 6472cd2..3886464 100644
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--- a/target/i386/cpu.c
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+++ b/target/i386/cpu.c
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@@ -1076,7 +1076,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
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.feat_names = {
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NULL, NULL, "avx512-4vnniw", "avx512-4fmaps",
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NULL, NULL, NULL, NULL,
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- NULL, NULL, NULL, NULL,
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+ NULL, NULL, "md-clear", NULL,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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--
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1.8.3.1
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