From a54cdba5b641391c0f1fd464c42c1b4c196206b7 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Sun, 15 Oct 2017 10:37:37 +0100
Subject: Platforms/AMD/Overdrive: add signed capsule update support

Wire up the various modules and boilerplate configuration snippets
to implement signed capsule update for AMD Overdrive. Note that this
uses the insecure default key.

The secure firmware on this SoC does not implement warm reboot, so we
cannot support capsules that persist across reset. Instead, the capsule
may be installed using CapsuleApp (from MdeModulePkg), from the UEFI
Shell prompt.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
 .../SystemFirmwareDescriptorPei.c                  | 68 ++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 Platform/AMD/OverdriveBoard/SystemFirmwareDescriptor/SystemFirmwareDescriptorPei.c

(limited to 'Platform/AMD/OverdriveBoard/SystemFirmwareDescriptor/SystemFirmwareDescriptorPei.c')

diff --git a/Platform/AMD/OverdriveBoard/SystemFirmwareDescriptor/SystemFirmwareDescriptorPei.c b/Platform/AMD/OverdriveBoard/SystemFirmwareDescriptor/SystemFirmwareDescriptorPei.c
new file mode 100644
index 0000000000..f89d9f4842
--- /dev/null
+++ b/Platform/AMD/OverdriveBoard/SystemFirmwareDescriptor/SystemFirmwareDescriptorPei.c
@@ -0,0 +1,68 @@
+/** @file
+  System Firmware descriptor producer.
+
+  Copyright (c) 2016, 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
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <PiPei.h>
+#include <Guid/EdkiiSystemFmpCapsule.h>
+#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Protocol/FirmwareManagement.h>
+
+/**
+  Entrypoint for SystemFirmwareDescriptor PEIM.
+
+  @param[in]  FileHandle  Handle of the file being invoked.
+  @param[in]  PeiServices Describes the list of possible PEI Services.
+
+  @retval EFI_SUCCESS            PPI successfully installed.
+**/
+EFI_STATUS
+EFIAPI
+SystemFirmwareDescriptorPeimEntry (
+  IN EFI_PEI_FILE_HANDLE     FileHandle,
+  IN CONST EFI_PEI_SERVICES  **PeiServices
+  )
+{
+  EFI_STATUS                              Status;
+  EDKII_SYSTEM_FIRMWARE_IMAGE_DESCRIPTOR  *Descriptor;
+  UINTN                                   Size;
+  UINTN                                   Index;
+  UINT32                                  AuthenticationStatus;
+
+  //
+  // Search RAW section.
+  //
+  Index = 0;
+  while (TRUE) {
+    Status = PeiServicesFfsFindSectionData3(EFI_SECTION_RAW, Index, FileHandle,
+               (VOID **)&Descriptor, &AuthenticationStatus);
+    if (EFI_ERROR(Status)) {
+      // Should not happen, must something wrong in FDF.
+      ASSERT(FALSE);
+      return EFI_NOT_FOUND;
+    }
+    if (Descriptor->Signature == EDKII_SYSTEM_FIRMWARE_IMAGE_DESCRIPTOR_SIGNATURE) {
+      break;
+    }
+    Index++;
+  }
+
+  DEBUG((DEBUG_INFO, "EDKII_SYSTEM_FIRMWARE_IMAGE_DESCRIPTOR size - 0x%x\n",
+    Descriptor->Length));
+
+  Size = Descriptor->Length;
+  PcdSetPtrS (PcdEdkiiSystemFirmwareImageDescriptor, &Size, Descriptor);
+
+  return EFI_SUCCESS;
+}
-- 
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