Re: [PATCH] IntelFsp2Pkg: add TempRamExitPpi.h.

["Zeng, Star" <star.zeng@intel.com>]

Hi Chasel,

Two minor feedbacks.

1. The spec defines the return status below, should we follow it?

EFI_SUCCESS FSP execution environment was initialized successfully.
EFI_INVALID_PARAMETER Input parameters are invalid.
EFI_UNSUPPORTED The FSP calling conditions were not met.
EFI_DEVICE_ERROR Temporary memory exit.


2. The gFspTempRamExitPpiGuid should be added into IntelFsp2Pkg.dec, right?


Thanks,
Star

> -----Original Message-----
> From: Chiu, Chasel
> Sent: Friday, June 14, 2019 5:56 PM
> To: devel@edk2.groups.io
> Cc: Desimone, Nathaniel L <nathaniel.l.desimone@intel.com>; Zeng, Star
> <star.zeng@intel.com>
> Subject: [PATCH] IntelFsp2Pkg: add TempRamExitPpi.h.
> 
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1883
> 
> Add header file for FSP_TEMP_RAM_EXIT_PPI which is
> defined by FSP 2.1 spec.
> 
> Test: Build successfully.
> 
> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
> Cc: Star Zeng <star.zeng@intel.com>
> Signed-off-by: Chasel Chiu <chasel.chiu@intel.com>
> ---
>  IntelFsp2Pkg/Include/Ppi/TempRamExitPpi.h | 50
> ++++++++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 50 insertions(+)
> 
> diff --git a/IntelFsp2Pkg/Include/Ppi/TempRamExitPpi.h
> b/IntelFsp2Pkg/Include/Ppi/TempRamExitPpi.h
> new file mode 100644
> index 0000000000..9e728a5d4d
> --- /dev/null
> +++ b/IntelFsp2Pkg/Include/Ppi/TempRamExitPpi.h
> @@ -0,0 +1,50 @@
> +/** @file
> +  This file defines the Silicon Temp Ram Exit PPI which implements the
> +  required programming steps for disabling temporary memory.
> +
> +Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
> +SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +
> +#ifndef _FSP_TEMP_RAM_EXIT_PPI_H_
> +#define _FSP_TEMP_RAM_EXIT_PPI_H_
> +
> +///
> +/// Global ID for the FSP_TEMP_RAM_EXIT_PPI.
> +///
> +#define FSP_TEMP_RAM_EXIT_GUID \
> +  { \
> +    0xbc1cfbdb, 0x7e50, 0x42be, { 0xb4, 0x87, 0x22, 0xe0, 0xa9, 0x0c, 0xb0,
> 0x52 } \
> +  }
> +
> +//
> +// Forward declaration for the FSP_TEMP_RAM_EXIT_PPI.
> +//
> +typedef struct _FSP_TEMP_RAM_EXIT_PPI FSP_TEMP_RAM_EXIT_PPI;
> +
> +/**
> +  Silicon function for disabling temporary memory.
> +  @param[in] TempRamExitParamPtr - Pointer to the TempRamExit
> parameters structure.
> +                                   This structure is normally defined in the Integration
> +                                   Guide. If it is not defined in the Integration Guide,
> +                                   pass NULL.
> +  @retval EFI_SUCCESS            - Execution was completed successfully.
> +  @retval Status                 - Error status reported by sub-functions if
> implemented.
> +**/
> +typedef
> +EFI_STATUS
> +(EFIAPI *FSP_TEMP_RAM_EXIT) (
> +  IN  VOID    *TempRamExitParamPtr
> +  );
> +
> +///
> +/// This PPI provides function to disable temporary memory.
> +///
> +struct _FSP_TEMP_RAM_EXIT_PPI {
> +  FSP_TEMP_RAM_EXIT   TempRamExit;
> +};
> +
> +extern EFI_GUID gFspTempRamExitPpiGuid;
> +
> +#endif // _FSP_TEMP_RAM_EXIT_PPI_H_
> --
> 2.13.3.windows.1