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authorArnaldo Carvalho de Melo <acme@redhat.com>2022-03-14 19:15:16 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-03-14 19:15:16 -0300
commit65eab2bc7dab326ee892ec5a4c749470b368b51a (patch)
tree341189a55a3d021db7f1c8a8e5b4772b6c782c25 /Documentation/admin-guide/kernel-parameters.txt
parentf693dac4794fae99c04f75a3a1a5c4018bb33144 (diff)
parent09688c0166e76ce2fb85e86b9d99be8b0084cdf9 (diff)
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up fixes that went thru perf/urgent. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt8
1 files changed, 6 insertions, 2 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index f5a27f067db9..7123524a86b8 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5361,8 +5361,12 @@
Specific mitigations can also be selected manually:
retpoline - replace indirect branches
- retpoline,generic - google's original retpoline
- retpoline,amd - AMD-specific minimal thunk
+ retpoline,generic - Retpolines
+ retpoline,lfence - LFENCE; indirect branch
+ retpoline,amd - alias for retpoline,lfence
+ eibrs - enhanced IBRS
+ eibrs,retpoline - enhanced IBRS + Retpolines
+ eibrs,lfence - enhanced IBRS + LFENCE
Not specifying this option is equivalent to
spectre_v2=auto.