diff options
| author | Benjamin Berg <benjamin.berg@intel.com> | 2024-09-19 15:45:11 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2024-10-10 14:37:22 +0300 |
| commit | 41ab5fe7471ff38d2909d1c93b88197a89c6a00f (patch) | |
| tree | ea76a3b75fd7d8d2b7a4be194e74081113d0b595 /arch/um/include/asm/pgalloc.h | |
| parent | e167cc7a95fe01e228e403ac90090f8613e7d8bc (diff) | |
| download | linux-41ab5fe7471ff38d2909d1c93b88197a89c6a00f.tar.xz | |
um: Switch to 4 level page tables on 64 bit
The larger memory space is useful to support more applications inside
UML. One example for this is ASAN instrumentation of userspace
applications which requires addresses that would otherwise not be
available.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Link: https://patch.msgid.link/20240919124511.282088-11-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'arch/um/include/asm/pgalloc.h')
| -rw-r--r-- | arch/um/include/asm/pgalloc.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/um/include/asm/pgalloc.h b/arch/um/include/asm/pgalloc.h index de5e31c64793..04fb4e6969a4 100644 --- a/arch/um/include/asm/pgalloc.h +++ b/arch/um/include/asm/pgalloc.h @@ -31,7 +31,7 @@ do { \ tlb_remove_page_ptdesc((tlb), (page_ptdesc(pte))); \ } while (0) -#ifdef CONFIG_3_LEVEL_PGTABLES +#if CONFIG_PGTABLE_LEVELS > 2 #define __pmd_free_tlb(tlb, pmd, address) \ do { \ @@ -39,6 +39,15 @@ do { \ tlb_remove_page_ptdesc((tlb), virt_to_ptdesc(pmd)); \ } while (0) +#if CONFIG_PGTABLE_LEVELS > 3 + +#define __pud_free_tlb(tlb, pud, address) \ +do { \ + pagetable_pud_dtor(virt_to_ptdesc(pud)); \ + tlb_remove_page_ptdesc((tlb), virt_to_ptdesc(pud)); \ +} while (0) + +#endif #endif #endif |