File 0142-target-i386-add-MDS-NO-feature.patch of Package qemu.20749

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File 0142-target-i386-add-MDS-NO-feature.patch of Package qemu.20749

From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 16 May 2019 20:53:20 +0200
Subject: target/i386: add MDS-NO feature

Microarchitectural Data Sampling is a hardware vulnerability which allows
unprivileged speculative access to data which is available in various CPU
internal buffers.

Some Intel processors use the ARCH_CAP_MDS_NO bit in the
IA32_ARCH_CAPABILITIES
MSR to report that they are not vulnerable, make it available to guests.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20190516185320.28340-1-pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
(cherry picked from commit 20140a82c67467f53814ca197403d5e1b561a5e5)
[BR: FATE#327795 BSC#1136777]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 target/i386/cpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index e95d78fea2cd8f2c35ed182c64e0..3fb8175cf6367b5b6a3085b5066a 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -623,7 +623,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
         .type = MSR_FEATURE_WORD,
         .feat_names = {
             "rdctl-no", "ibrs-all", "rsba", "skip-l1dfl-vmentry",
-            "ssb-no", NULL, NULL, NULL,
+            "ssb-no", "mds-no", NULL, NULL,
             NULL, NULL, NULL, NULL,
             NULL, NULL, NULL, NULL,
             NULL, NULL, NULL, NULL,

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File 0142-target-i386-add-MDS-NO-feature.patch of Package qemu.20749

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