Commit 20140a82 authored by Paolo Bonzini's avatar Paolo Bonzini Committed by Eduardo Habkost
Browse files

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: default avatarPaolo Bonzini <pbonzini@redhat.com>
Message-Id: <20190516185320.28340-1-pbonzini@redhat.com>
Signed-off-by: default avatarEduardo Habkost <ehabkost@redhat.com>
parent 2c7e82a3

target/i386/cpu.c

+1 −1
Original line number Diff line number Diff line
@@ -1184,7 +1184,7 @@ 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,