File 0054-target-i386-add-MDS-NO-feature.patch of Package qemu-testsuite.14390

Overview Repositories Revisions Requests Users Attributes Meta

File 0054-target-i386-add-MDS-NO-feature.patch of Package qemu-testsuite.14390

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#327796 BSC#1136778]
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 86a40ef35c..6e81aca1cf 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1145,7 +1145,7 @@ 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,

Places

File 0054-target-i386-add-MDS-NO-feature.patch of Package qemu-testsuite.14390

Places