This is the next batch of patches required to bring boot-time switching between 4- and 5-level paging. Please review and consider applying. Patches in this patchset makes memory layout dynamic enough to be able to switch between paging modes at boot-time. Ingo, it worth noticing that we discussed some parts of the patchset before (back in October) and had disagrement on how to handle situation. You can read my position on the matter by the link[1]. Some changes made in this patchset can be replaced by patching constants in code once we have infrastructure for this. [1] http://lkml.kernel.org/r/20171031120429.ehaqy2iciewcij35@xxxxxxxxxxxxxxxxxx Kirill A. Shutemov (9): x86/mm/64: Make __PHYSICAL_MASK_SHIFT always 52 mm/zsmalloc: Prepare to variable MAX_PHYSMEM_BITS x86/mm: Make virtual memory layout movable for CONFIG_X86_5LEVEL x86: Introduce pgtable_l5_enabled x86/mm: Make LDT_BASE_ADDR dynamic x86/mm: Make PGDIR_SHIFT and PTRS_PER_P4D variable x86/mm: Make MAX_PHYSADDR_BITS and MAX_PHYSMEM_BITS dynamic x86/mm: Make __VIRTUAL_MASK_SHIFT dynamic x86/mm: Adjust virtual address space layout in early boot arch/x86/Kconfig | 9 ++++ arch/x86/boot/compressed/kaslr.c | 14 ++++++ arch/x86/entry/entry_64.S | 12 ++++++ arch/x86/include/asm/kaslr.h | 4 -- arch/x86/include/asm/page_64.h | 4 ++ arch/x86/include/asm/page_64_types.h | 20 ++++----- arch/x86/include/asm/pgtable-3level_types.h | 1 + arch/x86/include/asm/pgtable_32.h | 2 + arch/x86/include/asm/pgtable_32_types.h | 2 + arch/x86/include/asm/pgtable_64_types.h | 67 ++++++++++++++++++----------- arch/x86/include/asm/sparsemem.h | 9 +--- arch/x86/kernel/cpu/mcheck/mce.c | 18 +++----- arch/x86/kernel/head64.c | 57 ++++++++++++++++++++++-- arch/x86/kernel/head_64.S | 2 +- arch/x86/kernel/setup.c | 5 +-- arch/x86/mm/dump_pagetables.c | 32 +++++++++----- arch/x86/mm/init_64.c | 2 +- arch/x86/mm/kasan_init_64.c | 2 +- arch/x86/mm/kaslr.c | 23 ++++------ arch/x86/platform/efi/efi_64.c | 4 +- include/asm-generic/5level-fixup.h | 1 + include/asm-generic/pgtable-nop4d.h | 9 ++-- include/linux/kasan.h | 2 +- mm/kasan/kasan_init.c | 2 +- mm/zsmalloc.c | 13 +++--- 25 files changed, 208 insertions(+), 108 deletions(-) -- 2.15.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
