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| author | Joel Stanley <joel@jms.id.au> | 2019-12-12 01:32:01 +0300 |
|---|---|---|
| committer | Joel Stanley <joel@jms.id.au> | 2019-12-12 01:32:06 +0300 |
| commit | fdc60468f3e452364d432f1a7c3f83d58bba1b84 (patch) | |
| tree | de7197f150958ae72cb87b6cf4885610f3edd704 /Documentation/admin-guide/kernel-parameters.txt | |
| parent | 20572eecd7248b66d855a8e4812debd9f828ccba (diff) | |
| parent | 8539dfa4fcbcf58c3c2f92ac57b964add884d12b (diff) | |
| download | linux-dev-5.3.tar.xz | |
Merge tag 'v5.3.15' into dev-5.3dev-5.3
This is the 5.3.15 stable release
Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index d97c46bacdac..ba465b6fa8e5 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -2449,6 +2449,12 @@ SMT on vulnerable CPUs off - Unconditionally disable MDS mitigation + On TAA-affected machines, mds=off can be prevented by + an active TAA mitigation as both vulnerabilities are + mitigated with the same mechanism so in order to disable + this mitigation, you need to specify tsx_async_abort=off + too. + Not specifying this option is equivalent to mds=full. @@ -4899,6 +4905,11 @@ vulnerable to cross-thread TAA attacks. off - Unconditionally disable TAA mitigation + On MDS-affected machines, tsx_async_abort=off can be + prevented by an active MDS mitigation as both vulnerabilities + are mitigated with the same mechanism so in order to disable + this mitigation, you need to specify mds=off too. + Not specifying this option is equivalent to tsx_async_abort=full. On CPUs which are MDS affected and deploy MDS mitigation, TAA mitigation is not |