-----Original Message-----
From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Sunil V L
Sent: Saturday, January 28, 2023 1:18 PM
To: devel@edk2.groups.io
Cc: Ard Biesheuvel <ardb+tianocore@...>; Yao, Jiewen <jiewen.yao@...>; Justen, Jordan L <jordan.l.justen@...>; Gerd Hoffmann <kraxel@...>; Abner Chang <abner.chang@...>
Subject: [edk2-devel] [edk2-staging/RiscV64QemuVirt PATCH V7 14/20] OvmfPkg/RiscVVirt: Add PrePiHobListPointerLib library

Add the PrePiHobListPointerLib required for RISC-V Qemu Virt machine since it follows PEIless design.

Cc: Ard Biesheuvel <ardb+tianocore@...>
Cc: Jiewen Yao <jiewen.yao@...>
Cc: Jordan Justen <jordan.l.justen@...>
Cc: Gerd Hoffmann <kraxel@...>
Signed-off-by: Sunil V L <sunilvl@...>
Acked-by: Abner Chang <abner.chang@...>
---
OvmfPkg/RiscVVirt/Library/PrePiHobListPointerLib/PrePiHobListPointerLib.inf | 23 +++++++
OvmfPkg/RiscVVirt/Library/PrePiHobListPointerLib/PrePiHobListPointer.c | 65 ++++++++++++++++++++
2 files changed, 88 insertions(+)

diff --git a/OvmfPkg/RiscVVirt/Library/PrePiHobListPointerLib/PrePiHobListPointerLib.inf b/OvmfPkg/RiscVVirt/Library/PrePiHobListPointerLib/PrePiHobListPointerLib.inf
new file mode 100644
index 000000000000..c539682e8d0b
--- /dev/null
+++ b/OvmfPkg/RiscVVirt/Library/PrePiHobListPointerLib/PrePiHobListPoint
+++ erLib.inf
@@ -0,0 +1,23 @@
+#/** @file
+#
+# Copyright (c) 2021, Intel Corporation. All rights reserved.<BR> #
+SPDX-License-Identifier: BSD-2-Clause-Patent # #**/
+
+[Defines]
+ INF_VERSION = 0x0001001B
+ BASE_NAME = PrePiHobListPointerLib
+ FILE_GUID = E3FAFC60-758C-471B-A333-FE704A4C11B4
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = PrePiHobListPointerLib
+
+[Sources.RISCV64]
+ PrePiHobListPointer.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ OvmfPkg/OvmfPkg.dec
+ EmbeddedPkg/EmbeddedPkg.dec
+ UefiCpuPkg/UefiCpuPkg.dec
diff --git a/OvmfPkg/RiscVVirt/Library/PrePiHobListPointerLib/PrePiHobListPointer.c b/OvmfPkg/RiscVVirt/Library/PrePiHobListPointerLib/PrePiHobListPointer.c
new file mode 100644
index 000000000000..a58b7aae6bee
--- /dev/null
+++ b/OvmfPkg/RiscVVirt/Library/PrePiHobListPointerLib/PrePiHobListPoint
+++ er.c
@@ -0,0 +1,65 @@
+/** @file
+*
+* Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
+* SPDX-License-Identifier: BSD-2-Clause-Patent
+*
+**/
+
+#include <PiPei.h>
+#include <Library/PrePiHobListPointerLib.h>
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/BaseRiscVSbiLib.h>
+
+/**
+ Returns the pointer to the HOB list.
+
+ This function returns the pointer to first HOB in the list.
+
+ @return The pointer to the HOB list.
+
+**/
+VOID *
+EFIAPI
+PrePeiGetHobList (
+ VOID
+ )
+{
+ EFI_RISCV_FIRMWARE_CONTEXT *FirmwareContext;
+
+ FirmwareContext = NULL;
+ GetFirmwareContextPointer (&FirmwareContext);
+
+ if (FirmwareContext == NULL) {
+ DEBUG ((DEBUG_ERROR, "%a: Firmware Context is NULL\n", __FUNCTION__));
+ return NULL;
+ }
+
+ return (VOID *)FirmwareContext->PrePiHobList; }
+
+/**
+ Updates the pointer to the HOB list.
+
+ @param HobList Hob list pointer to store
+
+**/
+EFI_STATUS
+EFIAPI
+PrePeiSetHobList (
+ IN VOID *HobList
+ )
+{
+ EFI_RISCV_FIRMWARE_CONTEXT *FirmwareContext;
+
+ FirmwareContext = NULL;
+ GetFirmwareContextPointer (&FirmwareContext);
+
+ if (FirmwareContext == NULL) {
+ DEBUG ((DEBUG_ERROR, "%a: Firmware Context is NULL\n", __FUNCTION__));
+ return EFI_NOT_READY;
+ }
+
+ FirmwareContext->PrePiHobList = HobList;
+ return EFI_SUCCESS;
+}
--
2.38.0