Re: [PATCH v24 21/28] riscv: kernel command line option to opt out of user cfi

[Randy Dunlap]

On 12/4/25 12:04 PM, Deepak Gupta wrote:
> diff --git a/Documentation/admin-guide/kernel-parameters.txt 
> b/Documentation/admin-guide/kernel-parameters.txt
> index 6c42061ca20e..453127ef8746 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -6453,6 +6453,14 @@
>                       replacement properties are not found. See the Kconfig
>                       entry for RISCV_ISA_FALLBACK.
>  
> +     riscv_nousercfi=
> +             all     Disable user cfi ABI to userspace even if cpu extension

                                                                      extensions

> +                     are available.
> +             bcfi    Disable user backward cfi ABI to userspace even if
> +                     shadow stack extension is available.
> +             fcfi    Disable user forward cfi ABI to userspace even if 
> landing
> +                     pad extension is available.
> +
>       ro              [KNL] Mount root device read-only on boot
>  
>       rodata=         [KNL,EARLY]

-- 
~Randy