1 files changed, 3 insertions, 35 deletions

diff --git a/arch/x86/mm/kaslr.c b/arch/x86/mm/kaslr.c
index dc6182eecefa..557f0fe25dff 100644
--- a/arch/x86/mm/kaslr.c
+++ b/arch/x86/mm/kaslr.c
@@ -24,9 +24,8 @@
 #include <linux/init.h>
 #include <linux/random.h>
 #include <linux/memblock.h>
+#include <linux/pgtable.h>
 
-#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
 #include <asm/setup.h>
 #include <asm/kaslr.h>
 
@@ -61,15 +60,6 @@ static inline unsigned long get_padding(struct kaslr_memory_region *region)
 	return (region->size_tb << TB_SHIFT);
 }
 
-/*
- * Apply no randomization if KASLR was disabled at boot or if KASAN
- * is enabled. KASAN shadow mappings rely on regions being PGD aligned.
- */
-static inline bool kaslr_memory_enabled(void)
-{
-	return kaslr_enabled() && !IS_ENABLED(CONFIG_KASAN);
-}
-
 /* Initialize base and padding for each memory region randomized with KASLR */
 void __init kernel_randomize_memory(void)
 {
@@ -106,7 +96,7 @@ void __init kernel_randomize_memory(void)
 	memory_tb = DIV_ROUND_UP(max_pfn << PAGE_SHIFT, 1UL << TB_SHIFT) +
 		CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING;
 
-	/* Adapt phyiscal memory region size based on available memory */
+	/* Adapt physical memory region size based on available memory */
 	if (memory_tb < kaslr_regions[0].size_tb)
 		kaslr_regions[0].size_tb = memory_tb;
 
@@ -148,7 +138,7 @@ void __init kernel_randomize_memory(void)
 	}
 }
 
-static void __meminit init_trampoline_pud(void)
+void __meminit init_trampoline_kaslr(void)
 {
 	pud_t *pud_page_tramp, *pud, *pud_tramp;
 	p4d_t *p4d_page_tramp, *p4d, *p4d_tramp;
@@ -189,25 +179,3 @@ static void __meminit init_trampoline_pud(void)
 			__pgd(_KERNPG_TABLE | __pa(pud_page_tramp)));
 	}
 }
-
-/*
- * The real mode trampoline, which is required for bootstrapping CPUs
- * occupies only a small area under the low 1MB.  See reserve_real_mode()
- * for details.
- *
- * If KASLR is disabled the first PGD entry of the direct mapping is copied
- * to map the real mode trampoline.
- *
- * If KASLR is enabled, copy only the PUD which covers the low 1MB
- * area. This limits the randomization granularity to 1GB for both 4-level
- * and 5-level paging.
- */
-void __meminit init_trampoline(void)
-{
-	if (!kaslr_memory_enabled()) {
-		init_trampoline_default();
-		return;
-	}
-
-	init_trampoline_pud();
-}