On Fri, May 16, 2025 at 03:33:02PM +0300, Kirill A. Shutemov wrote:
> Both Intel and AMD CPUs support 5-level paging, which is expected to
> become more widely adopted in the future.
>
> Remove CONFIG_X86_5LEVEL.
>
> In preparation to that remove CONFIG_DYNAMIC_MEMORY_LAYOUT and make
> SPARSEMEM_VMEMMAP the only memory model.
>
> v3:
> - Drop few "#if CONFIG_PGTABLE_LEVELS >= 5";
> - Make PARAVIRT_XXL 64-bit explicitly and drop ifdefs
> to support PGTABLE_LEVELS < 5;
> - Add Reviewed-by tags from Ard;
> v2:
> - Fix 32-bit build by wrapping p4d_set_huge() and p4d_clear_huge() in
> #if CONFIG_PGTABLE_LEVELS > 4;
> - Rebased onto current tip/master;
>
> Kirill A. Shutemov (4):
> x86/64/mm: Always use dynamic memory layout
> x86/64/mm: Make SPARSEMEM_VMEMMAP the only memory model
> x86/64/mm: Make 5-level paging support unconditional
> x86/paravirt: Restrict PARAVIRT_XXL to 64-bit only
The whole set passed randbuilds testing here too, and am running boot tests on
my pile of stinky hw.
If it passes, we could queue it all.
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
