1 files changed, 24 insertions, 0 deletions
diff --git a/roms/edk2/UefiCpuPkg/ResetVector/Vtf0/Ia32/PageTables64.asm b/roms/edk2/UefiCpuPkg/ResetVector/Vtf0/Ia32/PageTables64.asm
new file mode 100644
index 000000000..87a4125d4
--- /dev/null
+++ b/roms/edk2/UefiCpuPkg/ResetVector/Vtf0/Ia32/PageTables64.asm
@@ -0,0 +1,24 @@
+;------------------------------------------------------------------------------
+; @file
+; Sets the CR3 register for 64-bit paging
+;
+; Copyright (c) 2008 - 2013, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+;------------------------------------------------------------------------------
+
+BITS    32
+
+;
+; Modified:  EAX
+;
+SetCr3ForPageTables64:
+
+    ;
+    ; These pages are built into the ROM image in X64/PageTables.asm
+    ;
+    mov     eax, ADDR_OF(TopLevelPageDirectory)
+    mov     cr3, eax
+
+    OneTimeCallRet SetCr3ForPageTables64
+