UefiCpuPkg/ResetVector/Vtf0/Ia32/PageTables64.asm

   1 ;------------------------------------------------------------------------------
   2 ; @file
   3 ; Sets the CR3 register for 64-bit paging
   4 ;
   5 ; Copyright (c) 2008 - 2013, Intel Corporation. All rights reserved.<BR>
   6 ; SPDX-License-Identifier: BSD-2-Clause-Patent
   7 ;
   8 ;------------------------------------------------------------------------------
   9
  10 BITS    32
  11
  12 ;
  13 ; Modified:  EAX
  14 ;
  15 SetCr3ForPageTables64:
  16
  17     ;
  18     ; These pages are built into the ROM image in X64/PageTables.asm
  19     ;
  20     mov     eax, ADDR_OF(TopLevelPageDirectory)
  21     mov     cr3, eax
  22
  23     OneTimeCallRet SetCr3ForPageTables64
  24