diff options
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 55a9bbbcf5e1..f4f0a1b9ba29 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2484,6 +2484,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. improves system performance, but it may also expose users to several CPU vulnerabilities. Equivalent to: nopti [X86] + nospectre_v1 [X86] nospectre_v2 [X86] spectre_v2_user=off [X86] spec_store_bypass_disable=off [X86] @@ -2819,10 +2820,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted. nohugeiomap [KNL,x86] Disable kernel huge I/O mappings. - nospectre_v1 [PPC] Disable mitigations for Spectre Variant 1 (bounds - check bypass). With this option data leaks are possible - in the system. - nosmt [KNL,S390] Disable symmetric multithreading (SMT). Equivalent to smt=1. @@ -2830,6 +2827,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted. nosmt=force: Force disable SMT, cannot be undone via the sysfs control file. + nospectre_v1 [X86,PPC] Disable mitigations for Spectre Variant 1 + (bounds check bypass). With this option data leaks are + possible in the system. + nospectre_v2 [X86,PPC_FSL_BOOK3E] Disable all mitigations for the Spectre variant 2 (indirect branch prediction) vulnerability. System may allow data leaks with this option, which is equivalent |