diff options
| author | Joey Gouly <joey.gouly@arm.com> | 2024-08-22 16:10:54 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2024-09-04 12:52:40 +0100 |
| commit | bf83dae90fbc01d66477a3440eaad07da6657fdc (patch) | |
| tree | 87f4088a1416d0121c55a928556b39a955e9f090 /Documentation/arch | |
| parent | 9f82f15ddfdd60bb9820f09737333b2345e22ab3 (diff) | |
| download | linux-bf83dae90fbc01d66477a3440eaad07da6657fdc.tar.gz linux-bf83dae90fbc01d66477a3440eaad07da6657fdc.tar.bz2 linux-bf83dae90fbc01d66477a3440eaad07da6657fdc.zip | |
arm64: enable the Permission Overlay Extension for EL0
Expose a HWCAP and ID_AA64MMFR3_EL1_S1POE to userspace, so they can be used to
check if the CPU supports the feature.
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20240822151113.1479789-12-joey.gouly@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'Documentation/arch')
| -rw-r--r-- | Documentation/arch/arm64/elf_hwcaps.rst | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/arch/arm64/elf_hwcaps.rst b/Documentation/arch/arm64/elf_hwcaps.rst index 448c1664879b..694f67fa07d1 100644 --- a/Documentation/arch/arm64/elf_hwcaps.rst +++ b/Documentation/arch/arm64/elf_hwcaps.rst @@ -365,6 +365,8 @@ HWCAP2_SME_SF8DP2 HWCAP2_SME_SF8DP4 Functionality implied by ID_AA64SMFR0_EL1.SF8DP4 == 0b1. +HWCAP2_POE + Functionality implied by ID_AA64MMFR3_EL1.S1POE == 0b0001. 4. Unused AT_HWCAP bits ----------------------- |