diff options
Diffstat (limited to 'Core/EM/TCG2/Common/EMpCallBin.asm')
| -rw-r--r-- | Core/EM/TCG2/Common/EMpCallBin.asm | 337 |
1 files changed, 337 insertions, 0 deletions
diff --git a/Core/EM/TCG2/Common/EMpCallBin.asm b/Core/EM/TCG2/Common/EMpCallBin.asm new file mode 100644 index 0000000..f63c3d7 --- /dev/null +++ b/Core/EM/TCG2/Common/EMpCallBin.asm @@ -0,0 +1,337 @@ +;********************************************************************** +;********************************************************************** +;** ** +;** (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/EMpCallBin.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/EMpCallBin.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) +; +; 13 5/09/12 6:38p Fredericko +; Fix for possible Tcm hang issues during reboot cycles. +; +; 12 1/20/12 9:13p Fredericko +; Added code to work around RTC issue when using legacy IO support. +; +; 11 4/22/11 8:53p Fredericko +; Token to enable stack workaround for binaries that don't return +; properly. +; +; 10 3/29/11 1:13p 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 +; +; 9 3/28/11 2:22p 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 +; +; 8 5/19/10 5:38p Fredericko +; Included File Header +; Included File Revision History +; Updated AMI Function Headers +; Code Beautification +; EIP 37653 +; +; 7 4/16/10 10:36a Fredericko +; Function Headers updated +; +; 6 3/23/10 9:21p Fredericko +; +; 5 3/23/10 6:56p Fredericko +; +; 4 3/19/10 4:27p Fredericko +; Modified the way Driver calls into legacy TCG Binary. +; +; 3 6/02/09 1:12p Fredericko +; +; 2 5/18/09 6:04p Fredericko +; +; 1 5/18/09 6:03p Fredericko +; Initial check-in for EMpCallBin.asm for CTPM support infrastructure +;********************************************************************** +;<AMI_FHDR_START> +; +; Name: EMpCallBin.asm +; +; Description: +; Contains functions for legacy TCG calls in 32 bit Binaries +; +;<AMI_FHDR_END> +;********************************************************************** +.code + INCLUDE token.equ + +;Global variable for MpLoc + public MpLoc + MpLoc label dword + FWORD ? + +public TPMRTCSave + TPMRTCSave label dword + WORD ? + +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 rax + push rcx + push rdx + mov dword ptr [MpLoc],ecx + mov word ptr [MpLoc + 4],dx + pop rdx + pop rcx + pop rax + 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 rbp + push rax + push rcx + push rdx + mov rbp,rsp + cmp rcx, 04h + jnz Empty_Buff + MOV rsi, rdx +Empty_Buff: + mov rax, rcx + push rcx + mov rcx, offset next +IF MKF_Stack_Work_Around + mov dword ptr [IP_Offset], ecx +ENDIF +IF MKF_PMBASE_RTC_WKAround + push rax + push rdx + mov dx, MKF_PM_BASE_ADDRESS + in ax, dx + mov word ptr [TPMRTCSave],ax + pop rdx + pop rax +ENDIF + pop rcx + call fword ptr [MpLoc] +IF MKF_Stack_Work_Around + db 0eah +IP_Offset: + dd 0 + dw 038h +ENDIF +next: +IF MKF_PMBASE_RTC_WKAround + push rax + push rdx + mov dx,MKF_PM_BASE_ADDRESS + in ax, dx + test ax, dx + jz RtcNotSet + mov ax, word ptr [TPMRTCSave] + and ax,0FBFEh + or ax,0400h + out dx, ax +RtcNotSet: + pop rdx + pop rax +ENDIF + mov rsp,rbp + pop rdx + pop rcx + pop rax + pop rbp + ret +TpmDxeCallMPDriver ENDP + + + +TcmIoDelay proc + push rax + mov al, 80h + out 080h, al + in al, 080h + pop rax + ret +TcmIoDelay 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 rax + push rcx + push rdx + push rsi + cmp rcx, 04h + jnz Empty_Buff + MOV rsi, rdx +Empty_Buff: + mov rax, rcx + call TcmIoDelay + call fword ptr [MpLoc] + call TcmIoDelay + pop rsi + pop rdx + pop rcx + pop rax + 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 |