Re: [PATCH v10 03/40] mman: Add map_shadow_stack() flags

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On Thu, Aug 01, 2024 at 01:06:30PM +0100, Mark Brown wrote:
> In preparation for adding arm64 GCS support make the map_shadow_stack()
> SHADOW_STACK_SET_TOKEN flag generic and add _SET_MARKER. The existing
> flag indicats that a token usable for stack switch should be added to

Nit: indicates

> diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
> index 57e8195d0b53..d6a282687af5 100644
> --- a/include/uapi/asm-generic/mman.h
> +++ b/include/uapi/asm-generic/mman.h
> @@ -19,4 +19,8 @@
>  #define MCL_FUTURE	2		/* lock all future mappings */
>  #define MCL_ONFAULT	4		/* lock all pages that are faulted in */
>  
> +#define SHADOW_STACK_SET_TOKEN (1ULL << 0)     /* Set up a restore token in the shadow stack */
> +#define SHADOW_STACK_SET_MARKER (1ULL << 1)     /* Set up a top of stack merker in the shadow stack */

s/merker/marker/

Otherwise:

Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx>




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