From 1bffe6f6890cb40a8d26aec1ffe5f95e2bd09ac2 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Fri, 16 May 2025 15:33:03 +0300
Subject: 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
---
 scripts/gdb/linux/pgtable.py | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'scripts/gdb/linux')

diff --git a/scripts/gdb/linux/pgtable.py b/scripts/gdb/linux/pgtable.py
index 30d837f3dfae..09aac2421fb8 100644
--- a/scripts/gdb/linux/pgtable.py
+++ b/scripts/gdb/linux/pgtable.py
@@ -29,11 +29,9 @@ def page_mask(level=1):
         raise Exception(f'Unknown page level: {level}')
 
 
-#page_offset_base in case CONFIG_DYNAMIC_MEMORY_LAYOUT is disabled
-POB_NO_DYNAMIC_MEM_LAYOUT = '0xffff888000000000'
 def _page_offset_base():
     pob_symbol = gdb.lookup_global_symbol('page_offset_base')
-    pob = pob_symbol.name if pob_symbol else POB_NO_DYNAMIC_MEM_LAYOUT
+    pob = pob_symbol.name
     return gdb.parse_and_eval(pob)
 
 
-- 
cgit