Subject: Re: [PATCH v3 0/2] arm64: cpufeature: Add WORKAROUND_DISABLE_CNP capability

From: Vladimir Murzin <[email-masked]>
Date: Tue, 2 Jun 2026 10:28:19 +0100

Hi,

On 6/1/26 12:19, Zeng Heng wrote:
> From: Zeng Heng <[email-masked]>
> 
> v2: https://lore.kernel.org/all/[email-masked]/
> v1: https://lore.kernel.org/all/[email-masked]/
> 
> Changes in v3:
>   - Keep CONFIG_ARM64_WORKAROUND_DISABLE_CNP config and generalise
>     ARM64_WORKAROUND_DISABLE_CNP capability.
> 
> Changes in v2:
>   - Unify CNP disable workaround into ARM64_WORKAROUND_DISABLE_CNP
> 
> Zeng Heng (2):
>   arm64: cpufeature: Add WORKAROUND_DISABLE_CNP capability
>   arm64: kernel: Disable CNP on HiSilicon HIP09
> 
>  Documentation/arch/arm64/silicon-errata.rst |  2 ++
>  arch/arm64/Kconfig                          | 20 ++++++++++++++++++++
>  arch/arm64/include/asm/cpucaps.h            |  4 ++--
>  arch/arm64/kernel/cpu_errata.c              | 17 ++++++++++++-----
>  arch/arm64/kernel/cpufeature.c              |  2 +-
>  arch/arm64/tools/cpucaps                    |  2 +-
>  6 files changed, 38 insertions(+), 9 deletions(-)
> 
> --
> 2.43.0
> 

Thanks a lot for going the extra mile and putting everything
together! I have no further comments, but let's give others some
time to chime in.

Cheers
Vladimir