diff options
| author | Marc Zyngier | 2022-06-30 17:04:59 +0100 |
|---|---|---|
| committer | Will Deacon | 2022-07-01 15:22:52 +0100 |
| commit | 504ee23611c4bb27777576ec6c1170fd45026093 (patch) | |
| tree | 2aee828e057c4dd9197ef7a6cd2d765a8773bea3 /Documentation/admin-guide | |
| parent | b3000e2133d878e586416e440642ca82d234c6fb (diff) | |
arm64: Add the arm64.nosve command line option
In order to be able to completely disable SVE even if the HW
seems to support it (most likely because the FW is broken),
move the SVE setup into the EL2 finalisation block, and
use a new idreg override to deal with it.
Note that we also nuke id_aa64zfr0_el1 as a byproduct, and
that SME also gets disabled, due to the dependency between the
two features.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220630160500.1536744-9-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 301d2d0fee80..0f1344eb7c2f 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.nosve [ARM64] Unconditionally disable Scalable Vector + Extension support + arm64.nosme [ARM64] Unconditionally disable Scalable Matrix Extension support |