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Diffstat (limited to 'Core/EM/SMM/SmmBaseAsm.asm')
| -rw-r--r-- | Core/EM/SMM/SmmBaseAsm.asm | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/Core/EM/SMM/SmmBaseAsm.asm b/Core/EM/SMM/SmmBaseAsm.asm new file mode 100644 index 0000000..cdaa37b --- /dev/null +++ b/Core/EM/SMM/SmmBaseAsm.asm @@ -0,0 +1,139 @@ +;************************************************************************* +;************************************************************************* +;** ** +;** (C)Copyright 1985-2008, American Megatrends, Inc. ** +;** ** +;** All Rights Reserved. ** +;** ** +;** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +;** ** +;** Phone: (770)-246-8600 ** +;** ** +;************************************************************************* +;************************************************************************* + +;********************************************************************** +; $Header: /Alaska/SOURCE/Modules/SMM/SMMBase/SmmBaseAsm.asm 2 7/14/09 12:16p Markw $ +; +; $Revision: 2 $ +; +; $Date: 7/14/09 12:16p $ +;********************************************************************** +; Revision History +; ---------------- +; $Log: /Alaska/SOURCE/Modules/SMM/SMMBase/SmmBaseAsm.asm $ +; +; 2 7/14/09 12:16p Markw +; Update headers. +; +; 1 9/26/08 4:48p Markw +; +; 1 6/09/08 5:56p Markw +; Assembly functions for Dispatcher. +; +;********************************************************************** + +;<AMI_FHDR_START> +;---------------------------------------------------------------------------- +; +; Name: SmmDispatcher.asm +; +; Description: File that contains assembly for Smm Dispatcher. +; +;---------------------------------------------------------------------------- +;<AMI_FHDR_END> + +IFDEF EFIx64 +.code +include token.equ + +public EfiSmmInSmm + +public InSmmFuncOffset +public InSmmFuncLength + +InSmmFuncOffset dd InSmmFixup - InSmmStart +InSmmFuncLength dd InSmmEnd - InSmmStart + +;<AMI_PHDR_START> +;---------------------------------------------------------------------------- +; +; Procedure: InSmm +; +; Description: Updates if *InSmm if in SMM. +; +; Input: +; IN EFI_SMM_BASE_PROTOCOL *This, +; OUT BOOLEAN *InSmm +; +; Output: EFI_STATUS +; +; Modified: Nothing +; +;---------------------------------------------------------------------------- +;<AMI_PHDR_END> + +EfiSmmInSmm proc +InSmmStart EQU $ + or rdx, rdx + jnz @f + mov rax, 8000000000000002h + ret +@@: + ;mov al, 0 + db 0b0h +InSmmFixup EQU $ + db 0 + mov [rdx], al + mov rax, 0 + ret +InSmmEnd EQU $ +EfiSmmInSmm endp + +ELSE ;32-bits +.586p +.model small +.code + +public _InSmmFuncOffset +public _InSmmFuncLength + +_InSmmFuncOffset dd InSmmFixup - InSmmStart +_InSmmFuncLength dd InSmmEnd - InSmmStart + +_EfiSmmInSmm proc public +InSmmStart EQU $ + or dword ptr [esp + 8], 0 + jnz @f + mov eax, 80000002h + ret +@@: + ;mov al, 0 + db 0b0h +InSmmFixup EQU $ + db 0 + push ebx + mov ebx, [esp + 12] + mov [ebx], al + pop ebx + xor eax, eax + ret +InSmmEnd EQU $ +_EfiSmmInSmm endp +ENDIF + +end + +;************************************************************************* +;************************************************************************* +;** ** +;** (C)Copyright 1985-2008, American Megatrends, Inc. ** +;** ** +;** All Rights Reserved. ** +;** ** +;** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +;** ** +;** Phone: (770)-246-8600 ** +;** ** +;************************************************************************* +;************************************************************************* |