Re: [PATCH] SecurityPkg Tcg2Pei: Add comments into LogHashEvent()

["Yao, Jiewen" <jiewen.yao@intel.com>]

Reviewed-by: jiewen.yao@intel.com

> -----Original Message-----
> From: Zeng, Star
> Sent: Friday, November 18, 2016 1:43 PM
> To: edk2-devel@lists.01.org
> Cc: Zeng, Star <star.zeng@intel.com>; Yao, Jiewen <jiewen.yao@intel.com>;
> Zhang, Chao B <chao.b.zhang@intel.com>
> Subject: [PATCH] SecurityPkg Tcg2Pei: Add comments into LogHashEvent()
> 
> Add comments into LogHashEvent() to describe the usage
> of GetDigestListSize (DigestList).
> 
> Cc: Jiewen Yao <jiewen.yao@intel.com>
> Cc: Chao Zhang <chao.b.zhang@intel.com>
> Contributed-under: TianoCore Contribution Agreement 1.0
> Signed-off-by: Star Zeng <star.zeng@intel.com>
> ---
>  SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c
> b/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c
> index 377f8d9fe45b..209d843245e4 100644
> --- a/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c
> +++ b/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c
> @@ -317,6 +317,10 @@ LogHashEvent (
>          }
>          break;
>        case EFI_TCG2_EVENT_LOG_FORMAT_TCG_2:
> +        //
> +        // Use GetDigestListSize (DigestList) in the GUID HOB DataLength
> calculation
> +        // to reserve enough buffer to hold TPML_DIGEST_VALUES
> compact binary.
> +        //
>          HobData = BuildGuidHob (
>                     &gTcgEvent2EntryHobGuid,
>                     sizeof(TcgPcrEvent2->PCRIndex) +
> sizeof(TcgPcrEvent2->EventType) + GetDigestListSize (DigestList) +
> sizeof(TcgPcrEvent2->EventSize) + NewEventHdr->EventSize
> --
> 2.7.0.windows.1