On Tue, Dec 12, 2017 at 03:39:23PM +, Steve Capper wrote:
> It is not apparent to me how mark_linear_text_alias_ro(.) guarantees
> that no page table entries for the linear map are split, though.
map_mem() ensures that when mapped via __map_memblock(), no contiguous
entries are created. Also
Hi Ard,
On Mon, Dec 04, 2017 at 04:01:09PM +, Ard Biesheuvel wrote:
> On 4 December 2017 at 14:13, Steve Capper wrote:
> > update_mapping_prot assumes that it will be used on the VA for the
> > kernel .text section. (Via the check virt >= VMALLOC_START)
> >
> > Recent
update_mapping_prot assumes that it will be used on the VA for the
kernel .text section. (Via the check virt >= VMALLOC_START)
Recent kdump patches employ this function to modify the protection of
the direct linear mapping (which is strictly speaking outside of this
area), via