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docs: recommend use of md-clear feature on all Intel CPUs 

Update x86 CPU model guidance to recommend that the md-clear feature is
manually enabled with all Intel CPU models, when supported by the host
microcode.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20190515141011.5315-3-berrange@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
stable-4.1
Daniel P. Berrangé 2019-05-15 15:10:11 +01:00 committed by Eduardo Habkost
parent b2ae52101f
commit 2c7e82a307
1 changed files with 12 additions and 0 deletions
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docs/qemu-cpu-models.texi
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@ -200,6 +200,18 @@ Not included by default in any Intel CPU model.
Should be explicitly turned on for all Intel CPU models.
Note that not all CPU hardware will support this feature.
@item @code{md-clear}
Required to confirm the MDS (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130,
CVE-2019-11091) fixes.
Not included by default in any Intel CPU model.
Must be explicitly turned on for all Intel CPU models.
Requires the host CPU microcode to support this feature before it
can be used for guest CPUs.
@end table