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x86/speculation/mds: Add boot option to enable MDS protection only while in idle
authorBoris Ostrovsky <boris.ostrovsky@oracle.com>
Wed, 3 Apr 2019 18:45:10 +0000 (14:45 -0400)
committerMihai Carabas <mihai.carabas@oracle.com>
Mon, 22 Apr 2019 18:16:20 +0000 (21:16 +0300)
commit344e8318182d934622d6ffbdd030c3f0d586ab19
tree0a42bce8a7a5787cd4152dfb33d1a2124292cd1ftree
parent2dbb8b50e1682fb6f00312938192dfc12b362297commit | diff
x86/speculation/mds: Add boot option to enable MDS protection only while in idle

Such protection may be useful when we only care about virtualization and
no core sharing between guests is allowed.

Orabug: 29526900
CVE: CVE-2018-12126
CVE: CVE-2018-12130
CVE: CVE-2018-12127

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Mihai Carabas <mihai.carabas@oracle.com>
Documentation/admin-guide/hw-vuln/mds.rst diff | blob | history
Documentation/kernel-parameters.txt diff | blob | history
arch/x86/include/asm/processor.h diff | blob | history
arch/x86/kernel/cpu/bugs_64.c diff | blob | history
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