OvmfPkg/RiscVVirt: Add SEC module

Add the SEC module for RISC-V Qemu virt machine support.
It uses the PEI less design.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Acked-by: Abner Chang <abner.chang@amd.com>
Reviewed-by: Andrei Warkentin <andrei.warkentin@intel.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>

7 files changed, 673 insertions, 0 deletions

diff --git a/OvmfPkg/RiscVVirt/Sec/Cpu.c b/OvmfPkg/RiscVVirt/Sec/Cpu.c
new file mode 100644
index 0000000000..2c16df697e
--- /dev/null
+++ b/OvmfPkg/RiscVVirt/Sec/Cpu.c
@@ -0,0 +1,33 @@
+/** @file

+The library call to pass the device tree to DXE via HOB.

+

+Copyright (c) 2021, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>

+

+SPDX-License-Identifier: BSD-2-Clause-Patent

+

+**/

+

+//

+//// The package level header files this module uses

+////

+#include <PiPei.h>

+

+#include <Library/DebugLib.h>

+#include <Library/HobLib.h>

+

+/**

+  Cpu Peim initialization.

+

+**/

+EFI_STATUS

+CpuPeimInitialization (

+  VOID

+  )

+{

+  //

+  // for MMU type >= sv39

+  //

+  BuildCpuHob (56, 32);

+

+  return EFI_SUCCESS;

+}

diff --git a/OvmfPkg/RiscVVirt/Sec/Memory.c b/OvmfPkg/RiscVVirt/Sec/Memory.c
new file mode 100644
index 0000000000..70935b07b5
--- /dev/null
+++ b/OvmfPkg/RiscVVirt/Sec/Memory.c
@@ -0,0 +1,263 @@
+/** @file

+  Memory Detection for Virtual Machines.

+

+  Copyright (c) 2021, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>

+  Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>

+

+  SPDX-License-Identifier: BSD-2-Clause-Patent

+

+Module Name:

+

+  MemDetect.c

+

+**/

+

+//

+// The package level header files this module uses

+//

+#include <PiPei.h>

+

+//

+// The Library classes this module consumes

+//

+#include <Library/BaseMemoryLib.h>

+#include <Library/DebugLib.h>

+#include <Library/HobLib.h>

+#include <Library/IoLib.h>

+#include <Library/PcdLib.h>

+#include <Library/PeimEntryPoint.h>

+#include <Library/ResourcePublicationLib.h>

+#include <Library/BaseRiscVSbiLib.h>

+#include <Register/RiscV64/RiscVEncoding.h>

+#include <Library/PrePiLib.h>

+#include <libfdt.h>

+#include <Guid/FdtHob.h>

+

+VOID

+BuildMemoryTypeInformationHob (

+  VOID

+  );

+

+/**

+  Build reserved memory range resource HOB.

+

+  @param  MemoryBase     Reserved memory range base address.

+  @param  MemorySize     Reserved memory range size.

+

+**/

+STATIC

+VOID

+AddReservedMemoryBaseSizeHob (

+  EFI_PHYSICAL_ADDRESS  MemoryBase,

+  UINT64                MemorySize

+  )

+{

+  BuildResourceDescriptorHob (

+    EFI_RESOURCE_MEMORY_RESERVED,

+    EFI_RESOURCE_ATTRIBUTE_PRESENT     |

+    EFI_RESOURCE_ATTRIBUTE_INITIALIZED |

+    EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |

+    EFI_RESOURCE_ATTRIBUTE_TESTED,

+    MemoryBase,

+    MemorySize

+    );

+}

+

+/**

+  Create memory range resource HOB using the memory base

+  address and size.

+

+  @param  MemoryBase     Memory range base address.

+  @param  MemorySize     Memory range size.

+

+**/

+STATIC

+VOID

+AddMemoryBaseSizeHob (

+  EFI_PHYSICAL_ADDRESS  MemoryBase,

+  UINT64                MemorySize

+  )

+{

+  BuildResourceDescriptorHob (

+    EFI_RESOURCE_SYSTEM_MEMORY,

+    EFI_RESOURCE_ATTRIBUTE_PRESENT |

+    EFI_RESOURCE_ATTRIBUTE_INITIALIZED |

+    EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |

+    EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |

+    EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |

+    EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |

+    EFI_RESOURCE_ATTRIBUTE_TESTED,

+    MemoryBase,

+    MemorySize

+    );

+}

+

+/**

+  Create memory range resource HOB using memory base

+  address and top address of the memory range.

+

+  @param  MemoryBase     Memory range base address.

+  @param  MemoryLimit    Memory range size.

+

+**/

+STATIC

+VOID

+AddMemoryRangeHob (

+  EFI_PHYSICAL_ADDRESS  MemoryBase,

+  EFI_PHYSICAL_ADDRESS  MemoryLimit

+  )

+{

+  AddMemoryBaseSizeHob (MemoryBase, (UINT64)(MemoryLimit - MemoryBase));

+}

+

+/**

+  Configure MMU

+**/

+STATIC

+VOID

+InitMmu (

+  )

+{

+  //

+  // Set supervisor translation mode to Bare mode

+  //

+  RiscVSetSupervisorAddressTranslationRegister ((UINT64)SATP_MODE_OFF << 60);

+  DEBUG ((DEBUG_INFO, "%a: Set Supervisor address mode to bare-metal mode.\n", __FUNCTION__));

+}

+

+/**

+  Publish system RAM and reserve memory regions.

+

+**/

+STATIC

+VOID

+InitializeRamRegions (

+  EFI_PHYSICAL_ADDRESS  SystemMemoryBase,

+  UINT64                SystemMemorySize,

+  EFI_PHYSICAL_ADDRESS  MmodeResvBase,

+  UINT64                MmodeResvSize

+  )

+{

+  /*

+   * M-mode FW can be loaded anywhere in memory but should not overlap

+   * with the EDK2. This can happen if some other boot code loads the

+   * M-mode firmware.

+   *

+   * The M-mode firmware memory should be marked as reserved memory

+   * so that OS doesn't use it.

+   */

+  DEBUG ((

+    DEBUG_INFO,

+    "%a: M-mode FW Memory Start:0x%lx End:0x%lx\n",

+    __FUNCTION__,

+    MmodeResvBase,

+    MmodeResvBase + MmodeResvSize

+    ));

+  AddReservedMemoryBaseSizeHob (MmodeResvBase, MmodeResvSize);

+

+  if (MmodeResvBase > SystemMemoryBase) {

+    AddMemoryRangeHob (SystemMemoryBase, MmodeResvBase);

+  }

+

+  AddMemoryRangeHob (

+    MmodeResvBase + MmodeResvSize,

+    SystemMemoryBase + SystemMemorySize

+    );

+}

+

+/**

+  Initialize memory hob based on the DTB information.

+

+  @return EFI_SUCCESS     The memory hob added successfully.

+

+**/

+EFI_STATUS

+MemoryPeimInitialization (

+  VOID

+  )

+{

+  EFI_RISCV_FIRMWARE_CONTEXT  *FirmwareContext;

+  CONST UINT64                *RegProp;

+  CONST CHAR8                 *Type;

+  UINT64                      CurBase, CurSize;

+  INT32                       Node, Prev;

+  INT32                       Len;

+  VOID                        *FdtPointer;

+  EFI_PHYSICAL_ADDRESS        MmodeResvBase;

+  UINT64                      MmodeResvSize;

+

+  FirmwareContext = NULL;

+  GetFirmwareContextPointer (&FirmwareContext);

+

+  if (FirmwareContext == NULL) {

+    DEBUG ((DEBUG_ERROR, "%a: Firmware Context is NULL\n", __FUNCTION__));

+    return EFI_UNSUPPORTED;

+  }

+

+  FdtPointer = (VOID *)FirmwareContext->FlattenedDeviceTree;

+  if (FdtPointer == NULL) {

+    DEBUG ((DEBUG_ERROR, "%a: Invalid FDT pointer\n", __FUNCTION__));

+    return EFI_UNSUPPORTED;

+  }

+

+  /* try to locate the reserved memory opensbi node */

+  Node = fdt_path_offset (FdtPointer, "/reserved-memory/mmode_resv0");

+  if (Node >= 0) {

+    RegProp = fdt_getprop (FdtPointer, Node, "reg", &Len);

+    if ((RegProp != 0) && (Len == (2 * sizeof (UINT64)))) {

+      MmodeResvBase = fdt64_to_cpu (ReadUnaligned64 (RegProp));

+      MmodeResvSize = fdt64_to_cpu (ReadUnaligned64 (RegProp + 1));

+    }

+  }

+

+  // Look for the lowest memory node

+  for (Prev = 0; ; Prev = Node) {

+    Node = fdt_next_node (FdtPointer, Prev, NULL);

+    if (Node < 0) {

+      break;

+    }

+

+    // Check for memory node

+    Type = fdt_getprop (FdtPointer, Node, "device_type", &Len);

+    if (Type && (AsciiStrnCmp (Type, "memory", Len) == 0)) {

+      // Get the 'reg' property of this node. For now, we will assume

+      // two 8 byte quantities for base and size, respectively.

+      RegProp = fdt_getprop (FdtPointer, Node, "reg", &Len);

+      if ((RegProp != 0) && (Len == (2 * sizeof (UINT64)))) {

+        CurBase = fdt64_to_cpu (ReadUnaligned64 (RegProp));

+        CurSize = fdt64_to_cpu (ReadUnaligned64 (RegProp + 1));

+

+        DEBUG ((

+          DEBUG_INFO,

+          "%a: System RAM @ 0x%lx - 0x%lx\n",

+          __FUNCTION__,

+          CurBase,

+          CurBase + CurSize - 1

+          ));

+

+        if ((MmodeResvBase >= CurBase) && ((MmodeResvBase + MmodeResvSize) <= (CurBase + CurSize))) {

+          InitializeRamRegions (

+            CurBase,

+            CurSize,

+            MmodeResvBase,

+            MmodeResvSize

+            );

+        } else {

+          AddMemoryBaseSizeHob (CurBase, CurSize);

+        }

+      } else {

+        DEBUG ((

+          DEBUG_ERROR,

+          "%a: Failed to parse FDT memory node\n",

+          __FUNCTION__

+          ));

+      }

+    }

+  }

+

+  InitMmu ();

+

+  BuildMemoryTypeInformationHob ();

+

+  return EFI_SUCCESS;

+}

diff --git a/OvmfPkg/RiscVVirt/Sec/Platform.c b/OvmfPkg/RiscVVirt/Sec/Platform.c
new file mode 100644
index 0000000000..e8fd126cf8
--- /dev/null
+++ b/OvmfPkg/RiscVVirt/Sec/Platform.c
@@ -0,0 +1,84 @@
+/** @file

+The library call to pass the device tree to DXE via HOB.

+

+Copyright (c) 2021, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>

+

+SPDX-License-Identifier: BSD-2-Clause-Patent

+

+**/

+

+//

+//// The package level header files this module uses

+////

+#include <PiPei.h>

+

+#include <Library/DebugLib.h>

+#include <Library/HobLib.h>

+#include <Library/MemoryAllocationLib.h>

+#include <Library/BaseRiscVSbiLib.h>

+#include <Library/PcdLib.h>

+#include <Include/Library/PrePiLib.h>

+#include <libfdt.h>

+#include <Guid/FdtHob.h>

+

+/**

+  @retval EFI_SUCCESS            The address of FDT is passed in HOB.

+          EFI_UNSUPPORTED        Can't locate FDT.

+**/

+EFI_STATUS

+EFIAPI

+PlatformPeimInitialization (

+  VOID

+  )

+{

+  EFI_RISCV_FIRMWARE_CONTEXT  *FirmwareContext;

+  VOID                        *FdtPointer;

+  VOID                        *Base;

+  VOID                        *NewBase;

+  UINTN                       FdtSize;

+  UINTN                       FdtPages;

+  UINT64                      *FdtHobData;

+

+  FirmwareContext = NULL;

+  GetFirmwareContextPointer (&FirmwareContext);

+

+  if (FirmwareContext == NULL) {

+    DEBUG ((DEBUG_ERROR, "%a: Firmware Context is NULL\n", __FUNCTION__));

+    return EFI_UNSUPPORTED;

+  }

+

+  FdtPointer = (VOID *)FirmwareContext->FlattenedDeviceTree;

+  if (FdtPointer == NULL) {

+    DEBUG ((DEBUG_ERROR, "%a: Invalid FDT pointer\n", __FUNCTION__));

+    return EFI_UNSUPPORTED;

+  }

+

+  DEBUG ((DEBUG_INFO, "%a: Build FDT HOB - FDT at address: 0x%x \n", __FUNCTION__, FdtPointer));

+  Base = FdtPointer;

+  if (fdt_check_header (Base) != 0) {

+    DEBUG ((DEBUG_ERROR, "%a: Corrupted DTB\n", __FUNCTION__));

+    return EFI_UNSUPPORTED;

+  }

+

+  FdtSize  = fdt_totalsize (Base);

+  FdtPages = EFI_SIZE_TO_PAGES (FdtSize);

+  NewBase  = AllocatePages (FdtPages);

+  if (NewBase == NULL) {

+    DEBUG ((DEBUG_ERROR, "%a: Could not allocate memory for DTB\n", __FUNCTION__));

+    return EFI_UNSUPPORTED;

+  }

+

+  fdt_open_into (Base, NewBase, EFI_PAGES_TO_SIZE (FdtPages));

+

+  FdtHobData = BuildGuidHob (&gFdtHobGuid, sizeof *FdtHobData);

+  if (FdtHobData == NULL) {

+    DEBUG ((DEBUG_ERROR, "%a: Could not build FDT Hob\n", __FUNCTION__));

+    return EFI_UNSUPPORTED;

+  }

+

+  *FdtHobData = (UINTN)NewBase;

+

+  BuildFvHob (PcdGet32 (PcdOvmfDxeMemFvBase), PcdGet32 (PcdOvmfDxeMemFvSize));

+

+  return EFI_SUCCESS;

+}

diff --git a/OvmfPkg/RiscVVirt/Sec/SecEntry.S b/OvmfPkg/RiscVVirt/Sec/SecEntry.S
new file mode 100644
index 0000000000..e919a3cb0e
--- /dev/null
+++ b/OvmfPkg/RiscVVirt/Sec/SecEntry.S
@@ -0,0 +1,21 @@
+/*

+  Copyright (c) 2022 Ventana Micro Systems Inc.

+

+  SPDX-License-Identifier: BSD-2-Clause-Patent

+

+ */

+

+#include "SecMain.h"

+

+.text

+.align 3

+

+ASM_FUNC (_ModuleEntryPoint)

+  /* Use Temp memory as the stack for calling to C code */

+  li    a4, FixedPcdGet32 (PcdOvmfSecPeiTempRamBase)

+  li    a5, FixedPcdGet32 (PcdOvmfSecPeiTempRamSize)

+

+  /* Use Temp memory as the stack for calling to C code */

+  add   sp, a4, a5

+

+  call SecStartup

diff --git a/OvmfPkg/RiscVVirt/Sec/SecMain.c b/OvmfPkg/RiscVVirt/Sec/SecMain.c
new file mode 100644
index 0000000000..054e49ef0c
--- /dev/null
+++ b/OvmfPkg/RiscVVirt/Sec/SecMain.c
@@ -0,0 +1,104 @@
+/** @file

+  RISC-V SEC phase module for Qemu Virt.

+

+  Copyright (c) 2008 - 2015, Intel Corporation. All rights reserved.<BR>

+  Copyright (c) 2022, Ventana Micro Systems Inc. All rights reserved.<BR>

+

+  SPDX-License-Identifier: BSD-2-Clause-Patent

+

+**/

+

+#include "SecMain.h"

+

+STATIC

+EFI_STATUS

+EFIAPI

+SecInitializePlatform (

+  VOID

+  )

+{

+  EFI_STATUS  Status;

+

+  MemoryPeimInitialization ();

+

+  CpuPeimInitialization ();

+

+  // Set the Boot Mode

+  SetBootMode (BOOT_WITH_FULL_CONFIGURATION);

+

+  Status = PlatformPeimInitialization ();

+  ASSERT_EFI_ERROR (Status);

+

+  return EFI_SUCCESS;

+}

+

+/**

+

+  Entry point to the C language phase of SEC. After the SEC assembly

+  code has initialized some temporary memory and set up the stack,

+  the control is transferred to this function.

+

+

+  @param[in]  BootHartId         Hardware thread ID of boot hart.

+  @param[in]  DeviceTreeAddress  Pointer to Device Tree (DTB)

+**/

+VOID

+NORETURN

+EFIAPI

+SecStartup (

+  IN  UINTN  BootHartId,

+  IN  VOID   *DeviceTreeAddress

+  )

+{

+  EFI_HOB_HANDOFF_INFO_TABLE  *HobList;

+  EFI_RISCV_FIRMWARE_CONTEXT  FirmwareContext;

+  EFI_STATUS                  Status;

+  UINT64                      UefiMemoryBase;

+  UINT64                      StackBase;

+

+  //

+  // Report Status Code to indicate entering SEC core

+  //

+  DEBUG ((

+    DEBUG_INFO,

+    "%a() BootHartId: 0x%x, DeviceTreeAddress=0x%x\n",

+    __FUNCTION__,

+    BootHartId,

+    DeviceTreeAddress

+    ));

+

+  FirmwareContext.BootHartId          = BootHartId;

+  FirmwareContext.FlattenedDeviceTree = (UINT64)DeviceTreeAddress;

+  SetFirmwareContextPointer (&FirmwareContext);

+

+  StackBase      = (UINT64)FixedPcdGet32 (PcdOvmfSecPeiTempRamBase);

+  UefiMemoryBase = StackBase +  FixedPcdGet32 (PcdOvmfSecPeiTempRamSize) - SIZE_32MB;

+

+  // Declare the PI/UEFI memory region

+  HobList = HobConstructor (

+              (VOID *)UefiMemoryBase,

+              SIZE_32MB,

+              (VOID *)UefiMemoryBase,

+              (VOID *)StackBase // The top of the UEFI Memory is reserved for the stacks

+              );

+  PrePeiSetHobList (HobList);

+

+  SecInitializePlatform ();

+

+  //

+  // Process all libraries constructor function linked to SecMain.

+  //

+  ProcessLibraryConstructorList ();

+

+  // Assume the FV that contains the SEC (our code) also contains a compressed FV.

+  Status = DecompressFirstFv ();

+  ASSERT_EFI_ERROR (Status);

+

+  // Load the DXE Core and transfer control to it

+  Status = LoadDxeCoreFromFv (NULL, 0);

+  ASSERT_EFI_ERROR (Status);

+  //

+  // Should not come here.

+  //

+  UNREACHABLE ();

+}

diff --git a/OvmfPkg/RiscVVirt/Sec/SecMain.h b/OvmfPkg/RiscVVirt/Sec/SecMain.h
new file mode 100644
index 0000000000..83a8058efe
--- /dev/null
+++ b/OvmfPkg/RiscVVirt/Sec/SecMain.h
@@ -0,0 +1,102 @@
+/** @file

+  Master header file for SecCore.

+

+  Copyright (c) 2022, Ventana Micro Systems Inc. All rights reserved.<BR>

+  SPDX-License-Identifier: BSD-2-Clause-Patent

+

+**/

+

+#ifndef SEC_MAIN_H_

+#define SEC_MAIN_H_

+

+#include <PiPei.h>

+#include <Library/BaseLib.h>

+#include <Library/BaseMemoryLib.h>

+#include <Library/DebugAgentLib.h>

+#include <Library/DebugLib.h>

+#include <Library/ExtractGuidedSectionLib.h>

+#include <Library/IoLib.h>

+#include <Library/HobLib.h>

+#include <Library/PcdLib.h>

+#include <Library/PeCoffExtraActionLib.h>

+#include <Library/PeCoffGetEntryPointLib.h>

+#include <Library/PeCoffLib.h>

+#include <Library/PeiServicesLib.h>

+#include <Library/PeiServicesTablePointerLib.h>

+#include <Library/DebugPrintErrorLevelLib.h>

+#include <Library/PrintLib.h>

+#include <Library/BaseRiscVSbiLib.h>

+#include <Library/PrePiLib.h>

+#include <Library/PlatformInitLib.h>

+#include <Library/PrePiHobListPointerLib.h>

+#include <Register/RiscV64/RiscVImpl.h>

+

+/**

+  Entry point to the C language phase of SEC. After the SEC assembly

+  code has initialized some temporary memory and set up the stack,

+  the control is transferred to this function.

+

+  @param SizeOfRam           Size of the temporary memory available for use.

+  @param TempRamBase         Base address of temporary ram

+  @param BootFirmwareVolume  Base address of the Boot Firmware Volume.

+**/

+VOID

+NORETURN

+EFIAPI

+SecStartup (

+  IN  UINTN  BootHartId,

+  IN  VOID   *DeviceTreeAddress

+  );

+

+/**

+  Auto-generated function that calls the library constructors for all of the module's

+  dependent libraries.  This function must be called by the SEC Core once a stack has

+  been established.

+

+**/

+VOID

+EFIAPI

+ProcessLibraryConstructorList (

+  VOID

+  );

+

+/**

+  Perform Platform PEIM initialization.

+

+  @return EFI_SUCCESS     The platform initialized successfully.

+  @retval  Others        - As the error code indicates

+

+**/

+EFI_STATUS

+EFIAPI

+PlatformPeimInitialization (

+  VOID

+  );

+

+/**

+  Perform Memory PEIM initialization.

+

+  @return EFI_SUCCESS     The platform initialized successfully.

+  @retval  Others        - As the error code indicates

+

+**/

+EFI_STATUS

+EFIAPI

+MemoryPeimInitialization (

+  VOID

+  );

+

+/**

+  Perform CPU PEIM initialization.

+

+  @return EFI_SUCCESS     The platform initialized successfully.

+  @retval  Others        - As the error code indicates

+

+**/

+EFI_STATUS

+EFIAPI

+CpuPeimInitialization (

+  VOID

+  );

+

+#endif

diff --git a/OvmfPkg/RiscVVirt/Sec/SecMain.inf b/OvmfPkg/RiscVVirt/Sec/SecMain.inf
new file mode 100644
index 0000000000..aed35d3af5
--- /dev/null
+++ b/OvmfPkg/RiscVVirt/Sec/SecMain.inf
@@ -0,0 +1,66 @@
+## @file

+#  SEC Driver for RISC-V

+#

+#  Copyright (c) 2022, Ventana Micro Systems Inc. All rights reserved.<BR>

+#

+#  SPDX-License-Identifier: BSD-2-Clause-Patent

+#

+##

+

+[Defines]

+  INF_VERSION                    = 0x0001001B

+  BASE_NAME                      = SecMainRiscV64

+  FILE_GUID                      = 16740C0A-AA84-4F62-A06D-AE328057AE07

+  MODULE_TYPE                    = SEC

+  VERSION_STRING                 = 1.0

+  ENTRY_POINT                    = SecMain

+

+#

+# The following information is for reference only and not required by the build tools.

+#

+#  VALID_ARCHITECTURES           = RISCV64

+#

+

+[Sources]

+  SecEntry.S

+  SecMain.c

+  SecMain.h

+  Cpu.c

+  Memory.c

+  Platform.c

+

+[Packages]

+  MdePkg/MdePkg.dec

+  MdeModulePkg/MdeModulePkg.dec

+  UefiCpuPkg/UefiCpuPkg.dec

+  OvmfPkg/OvmfPkg.dec

+  EmbeddedPkg/EmbeddedPkg.dec

+

+[LibraryClasses]

+  BaseLib

+  DebugLib

+  PcdLib

+  IoLib

+  PeCoffLib

+  LzmaDecompressLib

+  RiscVSbiLib

+  PrePiLib

+  FdtLib

+  MemoryAllocationLib

+  HobLib

+

+[Ppis]

+  gEfiTemporaryRamSupportPpiGuid                # PPI ALWAYS_PRODUCED

+  gEfiTemporaryRamDonePpiGuid                   ## PRODUCES

+

+[Pcd]

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfPeiMemFvBase

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfPeiMemFvSize

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfDxeMemFvBase

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfDxeMemFvSize

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamBase

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamSize

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFdBaseAddress

+

+[Guids]

+  gFdtHobGuid