Re: [PATCH v5 2/2] IntelFsp2WrapperPkg: FSP_TEMP_RAM_INIT call must follow X64 Calling Convention

["Chiu, Chasel" <chasel.chiu@intel.com>]

Thanks Chinni!
Reviewed-by: Chasel Chiu <chasel.chiu@intel.com>


> -----Original Message-----
> From: Duggapu, Chinni B <chinni.b.duggapu@intel.com>
> Sent: Tuesday, May 17, 2022 4:44 PM
> To: devel@edk2.groups.io
> Cc: Chiu, Chasel <chasel.chiu@intel.com>; Desimone, Nathaniel L
> <nathaniel.l.desimone@intel.com>; Zeng, Star <star.zeng@intel.com>; S,
> Ashraf Ali <ashraf.ali.s@intel.com>
> Subject: [PATCH v5 2/2] IntelFsp2WrapperPkg: FSP_TEMP_RAM_INIT call
> must follow X64 Calling Convention
> 
> REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3926
> Pass Input parameters using RCX.
> 
> Cc: Chasel Chiu <chasel.chiu@intel.com>
> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
> Cc: Star Zeng <star.zeng@intel.com>
> Cc: Ashraf Ali S <ashraf.ali.s@intel.com>
> Signed-off-by: cbduggap <chinni.b.duggapu@intel.com>
> ---
>  .../SecFspWrapperPlatformSecLibSample/X64/SecEntry.nasm       | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git
> a/IntelFsp2WrapperPkg/Library/SecFspWrapperPlatformSecLibSample/X64
> /SecEntry.nasm
> b/IntelFsp2WrapperPkg/Library/SecFspWrapperPlatformSecLibSample/X64
> /SecEntry.nasm
> index dbbf63336e..065d80d0e2 100644
> ---
> a/IntelFsp2WrapperPkg/Library/SecFspWrapperPlatformSecLibSample/X64
> /SecEntry.nasm
> +++
> b/IntelFsp2WrapperPkg/Library/SecFspWrapperPlatformSecLibSample/X64
> /SecEntry.nasm
> @@ -130,6 +130,9 @@ FspHeaderFound:
>    mov     eax, dword [edi + FSP_HEADER_IMAGEBASE_OFFSET]
> 
>    add     eax, dword [edi + FSP_HEADER_TEMPRAMINIT_OFFSET]
> 
> 
> 
> +  ; Pass Fsp T Udp pointer as Input parameter
> 
> +  mov     rcx, ASM_PFX(FsptUpdDataPtr)
> 
> +
> 
>    ; Setup the hardcode stack
> 
>    mov     rsp, TempRamInitStack
> 
> 
> 
> @@ -167,5 +170,4 @@ FspApiFailed:
>  align 10h
> 
>  TempRamInitStack:
> 
>      DQ  TempRamInitDone
> 
> -    DQ  ASM_PFX(FsptUpdDataPtr)         ; TempRamInitParams
> 
> 
> 
> --
> 2.36.0.windows.1