diff options
Diffstat (limited to 'Core/EM/TCG2/Common/EMpCallBin32.asm')
| -rw-r--r-- | Core/EM/TCG2/Common/EMpCallBin32.asm | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/Core/EM/TCG2/Common/EMpCallBin32.asm b/Core/EM/TCG2/Common/EMpCallBin32.asm new file mode 100644 index 0000000..bc030eb --- /dev/null +++ b/Core/EM/TCG2/Common/EMpCallBin32.asm @@ -0,0 +1,251 @@ +;********************************************************************** +;********************************************************************** +;** ** +;** (C)Copyright 1985-2005, American Megatrends, Inc. ** +;** ** +;** All Rights Reserved. ** +;** ** +;** 6145-F Northbelt Pkwy, Norcross, GA 30071 ** +;** ** +;** Phone: (770)-246-8600 ** +;** ** +;********************************************************************** +;********************************************************************** +; $Header: /Alaska/SOURCE/Modules/TCG2/Common/TcgDxe/EMpCallBin32.asm 1 4/21/14 2:16p Fredericko $ +; +; $Revision: 1 $ +; +; $Date: 4/21/14 2:16p $ +;************************************************************************* +;Revision History +; ---------------- +; $Log: /Alaska/SOURCE/Modules/TCG2/Common/TcgDxe/EMpCallBin32.asm $ +; +; 1 4/21/14 2:16p Fredericko +; +; 1 10/08/13 12:03p Fredericko +; Initial Check-In for Tpm-Next module +; +; 1 7/10/13 5:51p Fredericko +; [TAG] EIP120969 +; [Category] New Feature +; [Description] TCG (TPM20) +; +; 4 4/27/11 3:03p Fredericko +; Changes for working around stack problems when calling into binaries +; that don't return properly. +; +; 3 3/29/11 1:15p Fredericko +; +; [TAG] EIP 54642 +; [Category] Improvement +; [Description] 1. Checkin Files related to TCG function override +; 2. Include TCM and TPM auto detection +; [Files] Affects all TCG files +; +; +;********************************************************************** +;<AMI_FHDR_START> +; +; Name: EMpCallBin32.asm +; +; Description: +; +; +;<AMI_FHDR_END> +;********************************************************************** +.686 +.model flat +.code + INCLUDE token.equ + +;Global variable for MpLoc + public MpLoc + MpLoc label dword + FWORD ? + +TPMTransmitEntryStruct STRUC + pbInBuf DD ? ;[IN] Pointer to input data for the data transfers to TPM + dwInLen DD ? ; [IN] Length of the input data record + pbOutBuf DD 0 ; [OUT] Pointer to output buffer for the data from the TPM + dwOutLen DD 0 ; [IN/OUT] DWORD to store the length info of the + ; output data record. +TPMTransmitEntryStruct ENDS + + + + + + +;<AMI_PHDR_START> +;----------------------------------------------------------------------------- +; +; Procedure: Prepare2Thunkproc +; +; Description: +; Function to setup location of Mp Driver as a local variable +; +; Input: +; ecx - Location of MP Driver +; dx - Segment for MP Driver +; +; Output: +; +; Modified: +; +; Referrals: +; +; Notes: +;--------------------------------------------------------------------------- +;<AMI_PHDR_END> +_Prepare2Thunkproc proc + push ebp + mov ebp, esp + pusha + mov ecx, dword ptr [ebp + 08h] + mov edx, dword ptr [ebp + 0ch] + mov dword ptr [MpLoc],ecx + mov word ptr [MpLoc + 4], dx + popa + pop ebp + ret +_Prepare2Thunkproc ENDP + + + + + +;<AMI_PHDR_START> +;----------------------------------------------------------------------------- +; +; Procedure: TcgDxeCallMPDriver (TCM_support eq 0) +; +; Description: +; Makes a function call into MP Driver +; +; Input: +; rcx - Call type: 4-Buffer Transmission call +; rsi - Buffer to be tansmitted +; +; Output: +; rax - TCG return code +; +; Modified: +; +; Referrals: +; +; Notes: +;--------------------------------------------------------------------------- +;<AMI_PHDR_END> +_TpmDxeCallMPDriver proc + push ebp + mov ebp, esp + pusha + mov ecx, dword ptr [ebp + 08h] + cmp ecx, 04h + jnz Empty_Buff + mov esi, dword ptr [ebp + 0ch] +Empty_Buff: + mov eax, ecx + call fword ptr [MpLoc] +IF MKF_Stack_Work_Around + pop ebp ;balance the stack after call +ENDIF + popa + pop ebp + ret +_TpmDxeCallMPDriver ENDP + + + + +;<AMI_PHDR_START> +;----------------------------------------------------------------------------- +; +; Procedure: TcgDxeCallMPDriver (TCM_support eq 1) +; +; Description: +; Makes a function call into MP Driver +; +; Input: +; rcx - Call type: 4-Buffer Transmission call +; rsi - Buffer to be tansmitted +; +; Output: +; rax - TCG return code +; +; Modified: +; +; Referrals: +; +; Notes: +;--------------------------------------------------------------------------- +;<AMI_PHDR_END> +_TcmDxeCallMPDriver proc + push ebp + mov ebp, esp + pusha + mov ecx, dword ptr [ebp + 08h] + cmp ecx, 04h + jnz Empty_Buff + mov esi, dword ptr [ebp + 0ch] +Empty_Buff: + mov eax, ecx + call fword ptr [MpLoc] + popa + pop ebp + ret +_TcmDxeCallMPDriver ENDP + + + + + +;<AMI_PHDR_START> +;----------------------------------------------------------------------------- +; +; Procedure: TcgThunk32 +; +; Description: +; Go to compatibility mode for MP driver +; +; Input: +; +; Output: +; +; Modified: +; +; Referrals: +; +; Notes: +;--------------------------------------------------------------------------- +;<AMI_PHDR_END> +_TcgThunk32 proc +_TcgThunk32 ENDP + + + + + +;<AMI_PHDR_START> +;----------------------------------------------------------------------------- +; +; Procedure: TcgThunkSwitchback +; +; Description: +; Switch back to 64bit mode +; +; Input: +; +; Output: +; +; Modified: +; +; Referrals: +; +; Notes: +;--------------------------------------------------------------------------- +;<AMI_PHDR_END> +_TcgThunkSwitchback proc +_TcgThunkSwitchback ENDP +END |