[PATCH v2 1/2] ARM: mm: allow non-text sections to be non-executable

Adds CONFIG_ARM_KERNMEM_PERMS to separate the kernel memory regions into section-sized areas that can have different permisions. Performs the NX permission changes during free_initmem, so that init memory can be reclaimed. This uses section size instead of PMD size to reduce memory lost to padding

Re: [PATCH v2 1/2] ARM: mm: allow non-text sections to be non-executable

On Mon, Apr 07, 2014 at 08:15:09PM -0700, Kees Cook wrote: > Adds CONFIG_ARM_KERNMEM_PERMS to separate the kernel memory regions > into section-sized areas that can have different permisions. Performs > the NX permission changes during free_initmem, so that init memory can be > reclaimed. > > This

[PATCH v2 1/2] ARM: mm: allow non-text sections to be non-executable

Adds CONFIG_ARM_KERNMEM_PERMS to separate the kernel memory regions into section-sized areas that can have different permisions. Performs the NX permission changes during free_initmem, so that init memory can be reclaimed. This uses section size instead of PMD size to reduce memory lost to padding