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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, 2023-06-16 at 11:50 +0300, Mike Rapoport wrote: > From: "Mike Rapoport (IBM)" > > Data related to code allocations, such as module data section, need > to > comply with architecture constraints for its placement and its > allocation right now was done using execmem_text_alloc(). > > Create a dedicated API for allocating data related to code > allocations > and allow architectures to define address ranges for data > allocations. Right now the cross-arch way to specify kernel memory permissions is encoded in the function names of all the set_memory_foo()'s. You can't just have unified prot names because some arch's have NX and some have X bits, etc. CPA wouldn't know if it needs to set or unset a bit if you pass in a PROT. But then you end up with a new function for *each* combination (i.e. set_memory_rox()). I wish CPA has flags like mmap() does, and I wonder if it makes sense here instead of execmem_data_alloc(). Maybe that is an overhaul for another day though... _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel