On Fri, 2023-06-16 at 11:50 +0300, Mike Rapoport wrote: > From: "Mike Rapoport (IBM)" <rppt@xxxxxxxxxx> > > 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...
