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| author | Dave Martin <Dave.Martin@arm.com> | 2019-04-18 18:41:38 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2019-04-23 18:02:00 +0100 |
| commit | 06a916feca2b262ab0c1a2aeb68882f4b1108a07 (patch) | |
| tree | 7687db5cfb7163edb21e8f6d13bcea9c5c8488e8 /arch/arm64/Kconfig | |
| parent | dd523791c939cfe642557cb2fac754ac0fed80fe (diff) | |
| download | linux-06a916feca2b262ab0c1a2aeb68882f4b1108a07.tar.gz linux-06a916feca2b262ab0c1a2aeb68882f4b1108a07.tar.bz2 linux-06a916feca2b262ab0c1a2aeb68882f4b1108a07.zip | |
arm64: Expose SVE2 features for userspace
This patch provides support for reporting the presence of SVE2 and
its optional features to userspace.
This will also enable visibility of SVE2 for guests, when KVM
support for SVE-enabled guests is available.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 75c1a07abc72..4791d4857124 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1372,6 +1372,9 @@ config ARM64_SVE To enable use of this extension on CPUs that implement it, say Y. + On CPUs that support the SVE2 extensions, this option will enable + those too. + Note that for architectural reasons, firmware _must_ implement SVE support when running on SVE capable hardware. The required support is present in: |