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Diffstat (limited to 'UefiCpuPkg/ResetVector/Vtf0/Ia32/SearchForSecEntry.asm')
-rw-r--r--UefiCpuPkg/ResetVector/Vtf0/Ia32/SearchForSecEntry.asm200
1 files changed, 0 insertions, 200 deletions
diff --git a/UefiCpuPkg/ResetVector/Vtf0/Ia32/SearchForSecEntry.asm b/UefiCpuPkg/ResetVector/Vtf0/Ia32/SearchForSecEntry.asm
deleted file mode 100644
index 6206b44485..0000000000
--- a/UefiCpuPkg/ResetVector/Vtf0/Ia32/SearchForSecEntry.asm
+++ /dev/null
@@ -1,200 +0,0 @@
-;------------------------------------------------------------------------------
-; @file
-; Search for the SEC Core entry point
-;
-; Copyright (c) 2008 - 2011, Intel Corporation. All rights reserved.<BR>
-; This program and the accompanying materials
-; are licensed and made available under the terms and conditions of the BSD License
-; which accompanies this distribution. The full text of the license may be found at
-; http://opensource.org/licenses/bsd-license.php
-;
-; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-;
-;------------------------------------------------------------------------------
-
-BITS 32
-
-%define EFI_FV_FILETYPE_SECURITY_CORE 0x03
-
-;
-; Modified: EAX, EBX, ECX, EDX
-; Preserved: EDI, EBP, ESP
-;
-; @param[in] EBP Address of Boot Firmware Volume (BFV)
-; @param[out] ESI SEC Core Entry Point Address
-;
-Flat32SearchForSecEntryPoint:
-
- ;
- ; Initialize EBP and ESI to 0
- ;
- xor ebx, ebx
- mov esi, ebx
-
- ;
- ; Pass over the BFV header
- ;
- mov eax, ebp
- mov bx, [ebp + 0x30]
- add eax, ebx
- jc secEntryPointWasNotFound
-
- jmp searchingForFfsFileHeaderLoop
-
-moveForwardWhileSearchingForFfsFileHeaderLoop:
- ;
- ; Make forward progress in the search
- ;
- inc eax
- jc secEntryPointWasNotFound
-
-searchingForFfsFileHeaderLoop:
- test eax, eax
- jz secEntryPointWasNotFound
-
- ;
- ; Ensure 8 byte alignment
- ;
- add eax, 7
- jc secEntryPointWasNotFound
- and al, 0xf8
-
- ;
- ; Look to see if there is an FFS file at eax
- ;
- mov bl, [eax + 0x17]
- test bl, 0x20
- jz moveForwardWhileSearchingForFfsFileHeaderLoop
- mov ecx, [eax + 0x14]
- and ecx, 0x00ffffff
- or ecx, ecx
- jz moveForwardWhileSearchingForFfsFileHeaderLoop
- add ecx, eax
- jz jumpSinceWeFoundTheLastFfsFile
- jc moveForwardWhileSearchingForFfsFileHeaderLoop
-jumpSinceWeFoundTheLastFfsFile:
-
- ;
- ; There seems to be a valid file at eax
- ;
- cmp byte [eax + 0x12], EFI_FV_FILETYPE_SECURITY_CORE ; Check File Type
- jne readyToTryFfsFileAtEcx
-
-fileTypeIsSecCore:
- OneTimeCall GetEntryPointOfFfsFile
- test eax, eax
- jnz doneSeachingForSecEntryPoint
-
-readyToTryFfsFileAtEcx:
- ;
- ; Try the next FFS file at ECX
- ;
- mov eax, ecx
- jmp searchingForFfsFileHeaderLoop
-
-secEntryPointWasNotFound:
- xor eax, eax
-
-doneSeachingForSecEntryPoint:
- mov esi, eax
-
- test esi, esi
- jnz secCoreEntryPointWasFound
-
-secCoreEntryPointWasNotFound:
- ;
- ; Hang if the SEC entry point was not found
- ;
- debugShowPostCode POSTCODE_SEC_NOT_FOUND
- jz $
-
-secCoreEntryPointWasFound:
- debugShowPostCode POSTCODE_SEC_FOUND
-
- OneTimeCallRet Flat32SearchForSecEntryPoint
-
-%define EFI_SECTION_PE32 0x10
-%define EFI_SECTION_TE 0x12
-
-;
-; Input:
-; EAX - Start of FFS file
-; ECX - End of FFS file
-;
-; Output:
-; EAX - Entry point of PE32 (or 0 if not found)
-;
-; Modified:
-; EBX
-;
-GetEntryPointOfFfsFile:
- test eax, eax
- jz getEntryPointOfFfsFileErrorReturn
- add eax, 0x18 ; EAX = Start of section
-
-getEntryPointOfFfsFileLoopForSections:
- cmp eax, ecx
- jae getEntryPointOfFfsFileErrorReturn
-
- cmp byte [eax + 3], EFI_SECTION_PE32
- je getEntryPointOfFfsFileFoundPe32Section
-
- cmp byte [eax + 3], EFI_SECTION_TE
- je getEntryPointOfFfsFileFoundTeSection
-
- ;
- ; The section type was not PE32 or TE, so move to next section
- ;
- mov ebx, dword [eax]
- and ebx, 0x00ffffff
- add eax, ebx
- jc getEntryPointOfFfsFileErrorReturn
-
- ;
- ; Ensure that FFS section is 32-bit aligned
- ;
- add eax, 3
- jc getEntryPointOfFfsFileErrorReturn
- and al, 0xfc
- jmp getEntryPointOfFfsFileLoopForSections
-
-getEntryPointOfFfsFileFoundPe32Section:
- add eax, 4 ; EAX = Start of PE32 image
-
- cmp word [eax], 'MZ'
- jne getEntryPointOfFfsFileErrorReturn
- movzx ebx, word [eax + 0x3c]
- add ebx, eax
-
- ; if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE)
- cmp dword [ebx], `PE\x00\x00`
- jne getEntryPointOfFfsFileErrorReturn
-
- ; *EntryPoint = (VOID *)((UINTN)Pe32Data +
- ; (UINTN)(Hdr.Pe32->OptionalHeader.AddressOfEntryPoint & 0x0ffffffff));
- add eax, [ebx + 0x4 + 0x14 + 0x10]
- jmp getEntryPointOfFfsFileReturn
-
-getEntryPointOfFfsFileFoundTeSection:
- add eax, 4 ; EAX = Start of TE image
- mov ebx, eax
-
- ; if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE)
- cmp word [ebx], 'VZ'
- jne getEntryPointOfFfsFileErrorReturn
- ; *EntryPoint = (VOID *)((UINTN)Pe32Data +
- ; (UINTN)(Hdr.Te->AddressOfEntryPoint & 0x0ffffffff) +
- ; sizeof(EFI_TE_IMAGE_HEADER) - Hdr.Te->StrippedSize);
- add eax, [ebx + 0x8]
- add eax, 0x28
- movzx ebx, word [ebx + 0x6]
- sub eax, ebx
- jmp getEntryPointOfFfsFileReturn
-
-getEntryPointOfFfsFileErrorReturn:
- mov eax, 0
-
-getEntryPointOfFfsFileReturn:
- OneTimeCallRet GetEntryPointOfFfsFile
-