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authorCatalin Marinas2022-09-30 09:18:26 +0100
committerCatalin Marinas2022-09-30 09:18:26 +0100
commit53630a1f6186e9df5fb75e9b55328e22b64de150 (patch)
treecce45ad34594ae21ee6b2f7b37e6aadfc00715ec /Documentation/admin-guide
parentc704cf27a1adc5fa40fb8e40b5617bdca889a419 (diff)
parenta0caebbd04602cb7d28f6f316213a915ffab92a2 (diff)
Merge branch 'for-next/misc' into for-next/core
* for-next/misc: : Miscellaneous patches arm64/kprobe: Optimize the performance of patching single-step slot ARM64: reloc_test: add __init/__exit annotations to module init/exit funcs arm64/mm: fold check for KFENCE into can_set_direct_map() arm64: uaccess: simplify uaccess_mask_ptr() arm64: mte: move register initialization to C arm64: mm: handle ARM64_KERNEL_USES_PMD_MAPS in vmemmap_populate() arm64: dma: Drop cache invalidation from arch_dma_prep_coherent() arm64: support huge vmalloc mappings arm64: spectre: increase parameters that can be used to turn off bhb mitigation individually arm64: run softirqs on the per-CPU IRQ stack arm64: compat: Implement misalignment fixups for multiword loads
Diffstat (limited to 'Documentation/admin-guide')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt7
1 files changed, 6 insertions, 1 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 426fa892d311..dc3a939da2c0 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3207,6 +3207,7 @@
spectre_v2_user=off [X86]
spec_store_bypass_disable=off [X86,PPC]
ssbd=force-off [ARM64]
+ nospectre_bhb [ARM64]
l1tf=off [X86]
mds=off [X86]
tsx_async_abort=off [X86]
@@ -3613,7 +3614,7 @@
nohugeiomap [KNL,X86,PPC,ARM64] Disable kernel huge I/O mappings.
- nohugevmalloc [PPC] Disable kernel huge vmalloc mappings.
+ nohugevmalloc [KNL,X86,PPC,ARM64] Disable kernel huge vmalloc mappings.
nosmt [KNL,S390] Disable symmetric multithreading (SMT).
Equivalent to smt=1.
@@ -3631,6 +3632,10 @@
vulnerability. System may allow data leaks with this
option.
+ nospectre_bhb [ARM64] Disable all mitigations for Spectre-BHB (branch
+ history injection) vulnerability. System may allow data leaks
+ with this option.
+
nospec_store_bypass_disable
[HW] Disable all mitigations for the Speculative Store Bypass vulnerability