From 5f41a4ac3ff6527f7a23c3b2a2d8bef128f5c077 Mon Sep 17 00:00:00 2001 From: Eduardo Habkost Date: Tue, 24 Sep 2019 20:50:32 +0200 Subject: [PATCH 12/12] target/i386: add MDS-NO feature RH-Author: Eduardo Habkost Message-id: <20190924205032.12926-2-ehabkost@redhat.com> Patchwork-id: 90873 O-Subject: [RHEL-7.8 qemu-kvm PATCH 1/1] target/i386: add MDS-NO feature Bugzilla: 1714791 RH-Acked-by: Dr. David Alan Gilbert RH-Acked-by: Igor Mammedov RH-Acked-by: Paolo Bonzini From: Paolo Bonzini 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 Message-Id: <20190516185320.28340-1-pbonzini@redhat.com> Signed-off-by: Eduardo Habkost (cherry picked from commit 20140a82c67467f53814ca197403d5e1b561a5e5) Signed-off-by: Eduardo Habkost Signed-off-by: Miroslav Rezanina --- 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 3ea4e97..f92cb62 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -211,7 +211,7 @@ static const char *cpuid_apm_edx_feature_name[] = { static const char *cpuid_arch_capabilities_feature_name[] = { "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, -- 1.8.3.1