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UefiCpuPkg: Removes SmmCpuFeaturesReadSaveStateRegister

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BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4182

Removes SmmCpuFeaturesReadSaveStateRegister and
SmmCpuFeaturesWirteSaveStateRegister function from
SmmCpuFeaturesLib library.

MmSaveStateLib library replaces the functionality of the above
functions.
Platform old/new need to use MmSaveStateLib library to read/write save
state registers.
Current implementation supports Intel and AMD.

Cc: Paul Grimes <paul.grimes@amd.com>
Cc: Abner Chang <abner.chang@amd.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Signed-off-by: Abdul Lateef Attar <abdattar@amd.com>
Reviewed-by: Abner Chang <abner.chang@amd.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
This commit is contained in:
Abdul Lateef Attar
2023-04-07 09:59:07 +05:30
committed by mergify[bot]
parent 065fa2dcc2
commit fbb6f18e1c
7 changed files with 9 additions and 728 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c
View File

@@ -3,6 +3,7 @@ Agent Module to load other modules to deploy SMM Entry Vector for X86 CPU.
Copyright (c) 2009 - 2023, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
Copyright (C) 2023 Advanced Micro Devices, Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -276,10 +277,7 @@ SmmReadSaveState (
return EFI_INVALID_PARAMETER;
}
Status = SmmCpuFeaturesReadSaveStateRegister (CpuIndex, Register, Width, Buffer);
if (Status == EFI_UNSUPPORTED) {
Status = ReadSaveStateRegister (CpuIndex, Register, Width, Buffer);
}
Status = MmSaveStateReadRegister (CpuIndex, Register, Width, Buffer);
return Status;
}
@@ -328,10 +326,7 @@ SmmWriteSaveState (
return EFI_INVALID_PARAMETER;
}
Status = SmmCpuFeaturesWriteSaveStateRegister (CpuIndex, Register, Width, Buffer);
if (Status == EFI_UNSUPPORTED) {
Status = WriteSaveStateRegister (CpuIndex, Register, Width, Buffer);
}
Status = MmSaveStateWriteRegister (CpuIndex, Register, Width, Buffer);
return Status;
}