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

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

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>
---
 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