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| author |  Andrea della Porta <andrea.porta@suse.com>
| 2024-04-29 12:28:33 +0200 |
|---|---|---|
| committer |  Will Deacon <will@kernel.org>
| 2024-05-03 13:08:06 +0100 |
| commit | 1279e8d0dcead53cf1f51e926a1cf6d2a79332d6 (patch) | |
| tree | fe21cfdec96b549a9925588d77312d07ce89abcb /Documentation/admin-guide | |
| parent | arm64: defer clearing DAIF.D (diff) | |
| download | linux-1279e8d0dcead53cf1f51e926a1cf6d2a79332d6.tar.gz linux-1279e8d0dcead53cf1f51e926a1cf6d2a79332d6.tar.bz2 linux-1279e8d0dcead53cf1f51e926a1cf6d2a79332d6.zip | |
arm64: Add the arm64.no32bit_el0 command line option
Introducing the field 'el0' to the idreg-override for register
ID_AA64PFR0_EL1. This field is also aliased to the new kernel
command line option 'arm64.no32bit_el0' as a more recognizable
and mnemonic name to disable the execution of 32 bit userspace
applications (i.e. avoid Aarch32 execution state in EL0) from
kernel command line.
Link: https://lore.kernel.org/all/20240207105847.7739-1-andrea.porta@suse.com/
Signed-off-by: Andrea della Porta <andrea.porta@suse.com>
Link: https://lore.kernel.org/r/20240429102833.6426-1-andrea.porta@suse.com
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 623fce7d5fcd..afd6fcc1e8b9 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -431,6 +431,9 @@ arcrimi= [HW,NET] ARCnet - "RIM I" (entirely mem-mapped) cards Format: <io>,<irq>,<nodeID> + arm64.no32bit_el0 [ARM64] Unconditionally disable the execution of + 32 bit applications. + arm64.nobti [ARM64] Unconditionally disable Branch Target Identification support |