Re: [PATCH V2 1/2] EmbeddedPkg PrePiHobLib: Implement BuildFv3Hob

[Ard Biesheuvel <ard.biesheuvel@linaro.org>]

On 5 October 2017 at 09:21, Star Zeng <star.zeng@intel.com> wrote:
> Cc: Leif Lindholm <leif.lindholm@linaro.org>
> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> Cc: Laszlo Ersek <lersek@redhat.com>
> Cc: Liming Gao <liming.gao@intel.com>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Star Zeng <star.zeng@intel.com>


Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

> ---
>  EmbeddedPkg/Library/PrePiHobLib/Hob.c | 44 +++++++++++++++++++++++++++++++++++
>  1 file changed, 44 insertions(+)
>
> diff --git a/EmbeddedPkg/Library/PrePiHobLib/Hob.c b/EmbeddedPkg/Library/PrePiHobLib/Hob.c
> index aff532259ef4..aff8ea05797b 100644
> --- a/EmbeddedPkg/Library/PrePiHobLib/Hob.c
> +++ b/EmbeddedPkg/Library/PrePiHobLib/Hob.c
> @@ -1,6 +1,7 @@
>  /** @file
>
>    Copyright (c) 2010, Apple Inc. All rights reserved.<BR>
> +  Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
>
>    This program and the accompanying materials
>    are licensed and made available under the terms and conditions of the BSD License
> @@ -601,7 +602,50 @@ BuildFv2Hob (
>    CopyGuid (&Hob->FileName, FileName);
>  }
>
> +/**
> +  Builds a EFI_HOB_TYPE_FV3 HOB.
> +
> +  This function builds a EFI_HOB_TYPE_FV3 HOB.
> +  It can only be invoked during PEI phase;
> +  for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
> +
> +  If there is no additional space for HOB creation, then ASSERT().
> +
> +  @param BaseAddress            The base address of the Firmware Volume.
> +  @param Length                 The size of the Firmware Volume in bytes.
> +  @param AuthenticationStatus   The authentication status.
> +  @param ExtractedFv            TRUE if the FV was extracted as a file within
> +                                another firmware volume. FALSE otherwise.
> +  @param FvName                 The name of the Firmware Volume.
> +                                Valid only if IsExtractedFv is TRUE.
> +  @param FileName               The name of the file.
> +                                Valid only if IsExtractedFv is TRUE.
> +
> +**/
> +VOID
> +EFIAPI
> +BuildFv3Hob (
> +  IN          EFI_PHYSICAL_ADDRESS        BaseAddress,
> +  IN          UINT64                      Length,
> +  IN          UINT32                      AuthenticationStatus,
> +  IN          BOOLEAN                     ExtractedFv,
> +  IN CONST    EFI_GUID                    *FvName, OPTIONAL
> +  IN CONST    EFI_GUID                    *FileName OPTIONAL
> +  )
> +{
> +  EFI_HOB_FIRMWARE_VOLUME3  *Hob;
> +
> +  Hob = CreateHob (EFI_HOB_TYPE_FV3, sizeof (EFI_HOB_FIRMWARE_VOLUME3));
>
> +  Hob->BaseAddress          = BaseAddress;
> +  Hob->Length               = Length;
> +  Hob->AuthenticationStatus = AuthenticationStatus;
> +  Hob->ExtractedFv          = ExtractedFv;
> +  if (ExtractedFv) {
> +    CopyGuid (&Hob->FvName, FvName);
> +    CopyGuid (&Hob->FileName, FileName);
> +  }
> +}
>
>  /**
>    Builds a Capsule Volume HOB.
> --
> 2.13.3.windows.1
>