1 ;; @file 2 ; Provide FSP helper function. 3 ; 4 ; Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR> 5 ; This program and the accompanying materials 6 ; are licensed and made available under the terms and conditions of the BSD License 7 ; which accompanies this distribution. The full text of the license may be found at 8 ; http://opensource.org/licenses/bsd-license.php. 9 ; 10 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 ;; 13 14 SECTION .text 15 16 global ASM_PFX(FspInfoHeaderRelativeOff) 17 ASM_PFX(FspInfoHeaderRelativeOff): 18 DD 0x12345678 ; This value must be patched by the build script 19 20 global ASM_PFX(AsmGetFspBaseAddress) 21 ASM_PFX(AsmGetFspBaseAddress): 22 call ASM_PFX(AsmGetFspInfoHeader) 23 add eax, 0x1C 24 mov eax, dword [eax] 25 ret 26 27 global ASM_PFX(AsmGetFspInfoHeader) 28 ASM_PFX(AsmGetFspInfoHeader): 29 call ASM_PFX(NextInstruction) 30 ASM_PFX(NextInstruction): 31 pop eax 32 sub eax, ASM_PFX(NextInstruction) 33 add eax, ASM_PFX(AsmGetFspInfoHeader) 34 sub eax, dword [eax - ASM_PFX(AsmGetFspInfoHeader) + ASM_PFX(FspInfoHeaderRelativeOff)] 35 ret 36 37 global ASM_PFX(AsmGetFspInfoHeaderNoStack) 38 ASM_PFX(AsmGetFspInfoHeaderNoStack): 39 mov eax, ASM_PFX(AsmGetFspInfoHeader) 40 sub eax, dword [ASM_PFX(FspInfoHeaderRelativeOff)] 41 jmp edi 42
