[edk2-devel] [PATCH v7 27/37] OvmfPkg/LoongArchVirt: Add a NULL library named CollectApResouceLibNull

["Chao Li" <lichao@loongson.cn>]

This Library is used to collect APs resources, but is currently NULL
for OvmfPkg, because it is not used by the LoongArch virtual machine.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584

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>
Cc: Bibo Mao <maobibo@loongson.cn>
Cc: Dongyan Qian <qiandongyan@loongson.cn>
Signed-off-by: Chao Li <lichao@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
---
 .../CollectApResourceLibNull.c                | 38 +++++++++++++++++++
 .../CollectApResourceLibNull.inf              | 31 +++++++++++++++
 .../CollectApResourceLibNull.uni              |  9 +++++
 3 files changed, 78 insertions(+)
 create mode 100644 OvmfPkg/LoongArchVirt/Library/CollectApResouceLibNull/CollectApResourceLibNull.c
 create mode 100644 OvmfPkg/LoongArchVirt/Library/CollectApResouceLibNull/CollectApResourceLibNull.inf
 create mode 100644 OvmfPkg/LoongArchVirt/Library/CollectApResouceLibNull/CollectApResourceLibNull.uni

diff --git a/OvmfPkg/LoongArchVirt/Library/CollectApResouceLibNull/CollectApResourceLibNull.c b/OvmfPkg/LoongArchVirt/Library/CollectApResouceLibNull/CollectApResourceLibNull.c
new file mode 100644
index 0000000000..19995c1193
--- /dev/null
+++ b/OvmfPkg/LoongArchVirt/Library/CollectApResouceLibNull/CollectApResourceLibNull.c
@@ -0,0 +1,38 @@
+/** @file
+  LoongArch64 CPU Collect AP resource NULL Library functions.
+
+  Copyright (c) 2024, Loongson Technology Corporation Limited. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <PiPei.h>
+#include <Library/BaseLib.h>
+#include <Library/HobLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Register/LoongArch64/Csr.h>
+#include "../../../UefiCpuPkg/Library/LoongArch64MpInitLib/MpLib.h"
+
+VOID
+SaveProcessorResourceData (
+  IN PROCESSOR_RESOURCE_DATA *
+  );
+
+VOID
+EFIAPI
+SaveProcessorResource (
+  PROCESSOR_RESOURCE_DATA  *mProcessorResource
+  )
+{
+  SaveProcessorResourceData (mProcessorResource);
+}
+
+VOID
+EFIAPI
+CollectAllProcessorResource (
+  VOID
+  )
+{
+  return;
+}
diff --git a/OvmfPkg/LoongArchVirt/Library/CollectApResouceLibNull/CollectApResourceLibNull.inf b/OvmfPkg/LoongArchVirt/Library/CollectApResouceLibNull/CollectApResourceLibNull.inf
new file mode 100644
index 0000000000..c166df6bbd
--- /dev/null
+++ b/OvmfPkg/LoongArchVirt/Library/CollectApResouceLibNull/CollectApResourceLibNull.inf
@@ -0,0 +1,31 @@
+## @file
+#  LoongArch64 CPU Collect AP resource NULL Library.
+#
+#  Copyright (c) 2024, Loongson Technology Corporation Limited. All rights reserved.<BR>
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 1.29
+  BASE_NAME                      = CollectApResourceLibNull
+  MODULE_UNI_FILE                = CollectApResourceLibNull.uni
+  FILE_GUID                      = 8C3B54BF-6A9F-E8B4-4D57-67B3AB578DD6
+  MODULE_TYPE                    = PEIM
+  VERSION_STRING                 = 1.1
+  LIBRARY_CLASS                  = PEIM
+
+[Sources.common]
+  CollectApResourceLibNull.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  UefiCpuPkg/UefiCpuPkg.dec
+
+[LibraryClasses]
+  BaseLib
+  HobLib
+  MemoryAllocationLib
+
+[Pcd]
+  gUefiCpuPkgTokenSpaceGuid.PcdCpuMaxLogicalProcessorNumber
diff --git a/OvmfPkg/LoongArchVirt/Library/CollectApResouceLibNull/CollectApResourceLibNull.uni b/OvmfPkg/LoongArchVirt/Library/CollectApResouceLibNull/CollectApResourceLibNull.uni
new file mode 100644
index 0000000000..d1638ab11e
--- /dev/null
+++ b/OvmfPkg/LoongArchVirt/Library/CollectApResouceLibNull/CollectApResourceLibNull.uni
@@ -0,0 +1,9 @@
+// @file
+//  LoongArch64 CPU Collect AP resource NULL Library.
+//
+//  Copyright (c) 2024, Loongson Technology Corporation Limited. All rights reserved.<BR>
+//  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+#string STR_MODULE_ABSTRACT             #language en-US "CPU Collect AP resource NULL Library."
+
+#string STR_MODULE_DESCRIPTION          #language en-US "CPU Collect AP resource NULL Library."
-- 
2.27.0



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