On Mon, Aug 16, 2010 at 11:27 AM, H. Peter Anvin <hpa at zytor.com> wrote: > No, it should not be dynamic; rather we should unify all the users who need a 1:1 map and just keep that page table set around. Agree. One known issue of global 1:1 map is that we need to make at least part of page table PAGE_KERNEL_EXEC for EFI runtime code, and change_page_attr can not be used before page allocator is available. Best Regards, Huang Ying
