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| author |   Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2025-05-16 15:33:03 +0300 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2025-05-17 10:33:44 +0200 |
| commit | 1bffe6f6890cb40a8d26aec1ffe5f95e2bd09ac2 (patch) | |
| tree | 16db2307e65eb2ec047bf2aa34f7c58913f52608 /arch/x86/kernel/head64.c | |
| parent | x86/bugs: Fix indentation due to ITS merge (diff) | |
| download | linux-rng-1bffe6f6890cb40a8d26aec1ffe5f95e2bd09ac2.tar.xz linux-rng-1bffe6f6890cb40a8d26aec1ffe5f95e2bd09ac2.zip | |
x86/mm/64: Always use dynamic memory layout
Dynamic memory layout is used by KASLR and 5-level paging.
CONFIG_X86_5LEVEL is going to be removed, making 5-level paging support
unconditional which requires unconditional support of dynamic memory
layout.
Remove CONFIG_DYNAMIC_MEMORY_LAYOUT.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250516123306.3812286-2-kirill.shutemov@linux.intel.com
Diffstat (limited to 'arch/x86/kernel/head64.c')
| -rw-r--r-- | arch/x86/kernel/head64.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index 14f7dda20954..9f617be64fa9 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -59,14 +59,12 @@ unsigned int ptrs_per_p4d __ro_after_init = 1; EXPORT_SYMBOL(ptrs_per_p4d); #endif -#ifdef CONFIG_DYNAMIC_MEMORY_LAYOUT unsigned long page_offset_base __ro_after_init = __PAGE_OFFSET_BASE_L4; EXPORT_SYMBOL(page_offset_base); unsigned long vmalloc_base __ro_after_init = __VMALLOC_BASE_L4; EXPORT_SYMBOL(vmalloc_base); unsigned long vmemmap_base __ro_after_init = __VMEMMAP_BASE_L4; EXPORT_SYMBOL(vmemmap_base); -#endif /* Wipe all early page tables except for the kernel symbol map */ static void __init reset_early_page_tables(void) |