1 files changed, 2 insertions, 15 deletions
diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
index 8e6ab61..cbca565 100644
--- a/arch/x86/realmode/init.c
+++ b/arch/x86/realmode/init.c
@@ -78,21 +78,8 @@ void __init setup_real_mode(void)
 	*trampoline_cr4_features = read_cr4();
 
 	trampoline_pgd = (u64 *) __va(real_mode_header->trampoline_pgd);
-
-	/*
-	 * Create an identity mapping for all of physical memory.
-	 */
-	for (i = 0; i <= pgd_index(max_pfn << PAGE_SHIFT); i++) {
-		int index = pgd_index(PAGE_OFFSET) + i;
-
-		trampoline_pgd[i] = (u64)pgd_val(swapper_pg_dir[index]);
-	}
-
-	/*
-	 * Copy the upper-half of the kernel pages tables.
-	 */
-	for (i = pgd_index(PAGE_OFFSET); i < PTRS_PER_PGD; i++)
-		trampoline_pgd[i] = (u64)pgd_val(swapper_pg_dir[i]);
+	trampoline_pgd[0] = __pa(level3_ident_pgt) + _KERNPG_TABLE;
+	trampoline_pgd[511] = __pa(level3_kernel_pgt) + _KERNPG_TABLE;
 #endif
 }