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x86/speculation/mds: Add 'mitigations=' support for MDS

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Add MDS to the new 'mitigations=' cmdline option.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Josh Poimboeuf
2019-04-17 16:39:02 -05:00
committed by Thomas Gleixner
parent e9fee6fe08
commit 5c14068f87
2 changed files with 5 additions and 2 deletions
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2
Documentation/admin-guide/kernel-parameters.txt
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@@ -2556,6 +2556,7 @@
spectre_v2_user=off [X86]
spec_store_bypass_disable=off [X86,PPC]
l1tf=off [X86]
mds=off [X86]
auto (default)
Mitigate all CPU vulnerabilities, but leave SMT
@@ -2570,6 +2571,7 @@
if needed. This is for users who always want to
be fully mitigated, even if it means losing SMT.
Equivalent to: l1tf=flush,nosmt [X86]
mds=full,nosmt [X86]
mminit_loglevel=
[KNL] When CONFIG_DEBUG_MEMORY_INIT is set, this