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| author |   Marc Zyngier <maz@kernel.org> | 2022-06-30 17:04:58 +0100 |
|---|---|---|
| committer |   Will Deacon <will@kernel.org> | 2022-07-01 15:22:52 +0100 |
| commit | b3000e2133d878e586416e440642ca82d234c6fb (patch) | |
| tree | bb778e096fe862d356c0df3c5ce27933098e4913 /Documentation/admin-guide | |
| parent | arm64: Expose a __check_override primitive for oddball features (diff) | |
| download | linux-dev-b3000e2133d878e586416e440642ca82d234c6fb.tar.xz linux-dev-b3000e2133d878e586416e440642ca82d234c6fb.zip | |
arm64: Add the arm64.nosme command line option
In order to be able to completely disable SME even if the HW
seems to support it (most likely because the FW is broken),
move the SME setup into the EL2 finalisation block, and
use a new idreg override to deal with it.
Note that we also nuke id_aa64smfr0_el1 as a byproduct.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220630160500.1536744-8-maz@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 2522b11e593f..301d2d0fee80 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -400,6 +400,9 @@ arm64.nomte [ARM64] Unconditionally disable Memory Tagging Extension support + arm64.nosme [ARM64] Unconditionally disable Scalable Matrix + Extension support + ataflop= [HW,M68k] atarimouse= [HW,MOUSE] Atari Mouse |