[edk2-devel][PATCH v3 1/8] IntelFsp2Pkg: X64 compatible changes to support PEI in 64bit

[Ni, Ray]

> -; UINT32
> +; UINTN
>  ; EFIAPI
> -; AsmReadEsp (
> +; AsmReadStackPointer (
>  ;   VOID
>  ;   );
>  ;------------------------------------------------------------------------------
> -global ASM_PFX(AsmReadEsp)
> -ASM_PFX(AsmReadEsp):
> +global ASM_PFX(AsmReadStackPointer)
> +ASM_PFX(AsmReadStackPointer):
>      mov     eax, esp
>      ret
> 

I guess it's possible that bootloader sets up the stack above 4G.
If that's the case, above code doesn't work.



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