Re: [PATCH v5 7/8] execmem: add support for cache of large ROX pages

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On Wed, Oct 09, 2024 at 09:08:15PM +0300, Mike Rapoport wrote:
>  /**
>   * struct execmem_info - architecture parameters for code allocations
> + * @fill_trapping_insns: set memory to contain instructions that will trap
>   * @ranges: array of parameter sets defining architecture specific
>   * parameters for executable memory allocations. The ranges that are not
>   * explicitly initialized by an architecture use parameters defined for
>   * @EXECMEM_DEFAULT.
>   */
>  struct execmem_info {
> +	void (*fill_trapping_insns)(void *ptr, size_t size, bool writable);
>  	struct execmem_range	ranges[EXECMEM_TYPE_MAX];

Why is the filler an indirect function call and not an architecture
hook?





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