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

Wei Xu xuwei5 at hisilicon.com
Tue Jun 2 04:54:47 PDT 2026


Hi Zeng Heng,

On 2026/6/1 19:19, Zeng Heng wrote:
> From: Zeng Heng <zengheng4 at huawei.com>
> 
> v2: https://lore.kernel.org/all/20260529063132.766491-1-zengheng@huaweicloud.com/
> v1: https://lore.kernel.org/all/20260526015720.206854-1-zengheng@huaweicloud.com/
> 
> 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, all looks good to me and tested with the 7.1.0-rc1 kernel.

Acked-by: Wei Xu <xuwei5 at hisilicon.com>
Tested-by: Wei Xu <xuwei5 at hisilicon.com>

Best Regards,
Wei



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