[PATCH v5 7/8] execmem: add support for cache of large ROX pages
Christoph Hellwig
hch at infradead.org
Wed Oct 9 23:58:33 PDT 2024
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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