[edk2-devel] [PATCH V2 8/9] UefiCpuPkg: Delete VmgExitLib
Min Xu
min.m.xu at intel.com
Thu Nov 3 23:19:54 UTC 2022
From: Min M Xu <min.m.xu at intel.com>
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4123
VmgExitLib is replaced by CcExitLib. So it is deleted from UefiCpuPkg.
Cc: Guo Dong <guo.dong at intel.com>
Cc: Ray Ni <ray.ni at intel.com>
Signed-off-by: Min Xu <min.m.xu at intel.com>
---
UefiCpuPkg/Include/Library/VmgExitLib.h | 173 ------------------
.../Library/VmgExitLibNull/VmTdExitNull.c | 38 ----
.../Library/VmgExitLibNull/VmgExitLibNull.c | 165 -----------------
.../Library/VmgExitLibNull/VmgExitLibNull.inf | 28 ---
.../Library/VmgExitLibNull/VmgExitLibNull.uni | 15 --
UefiCpuPkg/UefiCpuPkg.dec | 3 -
UefiCpuPkg/UefiCpuPkg.dsc | 2 -
7 files changed, 424 deletions(-)
delete mode 100644 UefiCpuPkg/Include/Library/VmgExitLib.h
delete mode 100644 UefiCpuPkg/Library/VmgExitLibNull/VmTdExitNull.c
delete mode 100644 UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.c
delete mode 100644 UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.inf
delete mode 100644 UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.uni
diff --git a/UefiCpuPkg/Include/Library/VmgExitLib.h b/UefiCpuPkg/Include/Library/VmgExitLib.h
deleted file mode 100644
index f9f911099a7b..000000000000
--- a/UefiCpuPkg/Include/Library/VmgExitLib.h
+++ /dev/null
@@ -1,173 +0,0 @@
-/** @file
- Public header file for the VMGEXIT Support library class.
-
- This library class defines some routines used when invoking the VMGEXIT
- instruction in support of SEV-ES and to handle #VC exceptions.
-
- Copyright (C) 2020, Advanced Micro Devices, Inc. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#ifndef __VMG_EXIT_LIB_H__
-#define __VMG_EXIT_LIB_H__
-
-#include <Protocol/DebugSupport.h>
-#include <Register/Amd/Ghcb.h>
-
-#define VE_EXCEPTION 20
-
-/**
- Perform VMGEXIT.
-
- Sets the necessary fields of the GHCB, invokes the VMGEXIT instruction and
- then handles the return actions.
-
- @param[in, out] Ghcb A pointer to the GHCB
- @param[in] ExitCode VMGEXIT code to be assigned to the SwExitCode
- field of the GHCB.
- @param[in] ExitInfo1 VMGEXIT information to be assigned to the
- SwExitInfo1 field of the GHCB.
- @param[in] ExitInfo2 VMGEXIT information to be assigned to the
- SwExitInfo2 field of the GHCB.
-
- @retval 0 VMGEXIT succeeded.
- @return Exception number to be propagated, VMGEXIT
- processing did not succeed.
-
-**/
-UINT64
-EFIAPI
-VmgExit (
- IN OUT GHCB *Ghcb,
- IN UINT64 ExitCode,
- IN UINT64 ExitInfo1,
- IN UINT64 ExitInfo2
- );
-
-/**
- Perform pre-VMGEXIT initialization/preparation.
-
- Performs the necessary steps in preparation for invoking VMGEXIT. Must be
- called before setting any fields within the GHCB.
-
- @param[in, out] Ghcb A pointer to the GHCB
- @param[in, out] InterruptState A pointer to hold the current interrupt
- state, used for restoring in VmgDone ()
-
-**/
-VOID
-EFIAPI
-VmgInit (
- IN OUT GHCB *Ghcb,
- IN OUT BOOLEAN *InterruptState
- );
-
-/**
- Perform post-VMGEXIT cleanup.
-
- Performs the necessary steps to cleanup after invoking VMGEXIT. Must be
- called after obtaining needed fields within the GHCB.
-
- @param[in, out] Ghcb A pointer to the GHCB
- @param[in] InterruptState An indicator to conditionally (re)enable
- interrupts
-
-**/
-VOID
-EFIAPI
-VmgDone (
- IN OUT GHCB *Ghcb,
- IN BOOLEAN InterruptState
- );
-
-/**
- Marks a specified offset as valid in the GHCB.
-
- The ValidBitmap area represents the areas of the GHCB that have been marked
- valid. Set the bit in ValidBitmap for the input offset.
-
- @param[in, out] Ghcb A pointer to the GHCB
- @param[in] Offset Qword offset in the GHCB to mark valid
-
-**/
-VOID
-EFIAPI
-VmgSetOffsetValid (
- IN OUT GHCB *Ghcb,
- IN GHCB_REGISTER Offset
- );
-
-/**
- Checks if a specified offset is valid in the GHCB.
-
- The ValidBitmap area represents the areas of the GHCB that have been marked
- valid. Return whether the bit in the ValidBitmap is set for the input offset.
-
- @param[in] Ghcb A pointer to the GHCB
- @param[in] Offset Qword offset in the GHCB to mark valid
-
- @retval TRUE Offset is marked valid in the GHCB
- @retval FALSE Offset is not marked valid in the GHCB
-
-**/
-BOOLEAN
-EFIAPI
-VmgIsOffsetValid (
- IN GHCB *Ghcb,
- IN GHCB_REGISTER Offset
- );
-
-/**
- Handle a #VC exception.
-
- Performs the necessary processing to handle a #VC exception.
-
- The base library function returns an error equal to VC_EXCEPTION,
- to be propagated to the standard exception handling stack.
-
- @param[in, out] ExceptionType Pointer to an EFI_EXCEPTION_TYPE to be set
- as value to use on error.
- @param[in, out] SystemContext Pointer to EFI_SYSTEM_CONTEXT
-
- @retval EFI_SUCCESS Exception handled
- @retval EFI_UNSUPPORTED #VC not supported, (new) exception value to
- propagate provided
- @retval EFI_PROTOCOL_ERROR #VC handling failed, (new) exception value to
- propagate provided
-
-**/
-EFI_STATUS
-EFIAPI
-VmgExitHandleVc (
- IN OUT EFI_EXCEPTION_TYPE *ExceptionType,
- IN OUT EFI_SYSTEM_CONTEXT SystemContext
- );
-
-/**
- Handle a #VE exception.
-
- Performs the necessary processing to handle a #VE exception.
-
- The base library function returns an error equal to VE_EXCEPTION,
- to be propagated to the standard exception handling stack.
-
- @param[in, out] ExceptionType Pointer to an EFI_EXCEPTION_TYPE to be set
- as value to use on error.
- @param[in, out] SystemContext Pointer to EFI_SYSTEM_CONTEXT
-
- @retval EFI_SUCCESS Exception handled
- @retval EFI_UNSUPPORTED #VE not supported, (new) exception value to
- propagate provided
- @retval EFI_PROTOCOL_ERROR #VE handling failed, (new) exception value to
- propagate provided
-
-**/
-EFI_STATUS
-EFIAPI
-VmTdExitHandleVe (
- IN OUT EFI_EXCEPTION_TYPE *ExceptionType,
- IN OUT EFI_SYSTEM_CONTEXT SystemContext
- );
-
-#endif
diff --git a/UefiCpuPkg/Library/VmgExitLibNull/VmTdExitNull.c b/UefiCpuPkg/Library/VmgExitLibNull/VmTdExitNull.c
deleted file mode 100644
index 6a4e8087cb89..000000000000
--- a/UefiCpuPkg/Library/VmgExitLibNull/VmTdExitNull.c
+++ /dev/null
@@ -1,38 +0,0 @@
-/** @file
-
- Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
-
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-#include <Base.h>
-#include <Uefi.h>
-#include <Library/VmgExitLib.h>
-
-/**
- Handle a #VE exception.
-
- Performs the necessary processing to handle a #VE exception.
-
- @param[in, out] ExceptionType Pointer to an EFI_EXCEPTION_TYPE to be set
- as value to use on error.
- @param[in, out] SystemContext Pointer to EFI_SYSTEM_CONTEXT
-
- @retval EFI_SUCCESS Exception handled
- @retval EFI_UNSUPPORTED #VE not supported, (new) exception value to
- propagate provided
- @retval EFI_PROTOCOL_ERROR #VE handling failed, (new) exception value to
- propagate provided
-
-**/
-EFI_STATUS
-EFIAPI
-VmTdExitHandleVe (
- IN OUT EFI_EXCEPTION_TYPE *ExceptionType,
- IN OUT EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- *ExceptionType = VE_EXCEPTION;
-
- return EFI_UNSUPPORTED;
-}
diff --git a/UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.c b/UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.c
deleted file mode 100644
index d661d8597434..000000000000
--- a/UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/** @file
- VMGEXIT Base Support Library.
-
- Copyright (C) 2020, Advanced Micro Devices, Inc. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#include <Base.h>
-#include <Uefi.h>
-#include <Library/VmgExitLib.h>
-
-/**
- Perform VMGEXIT.
-
- Sets the necessary fields of the GHCB, invokes the VMGEXIT instruction and
- then handles the return actions.
-
- The base library function returns an error in the form of a
- GHCB_EVENT_INJECTION representing a GP_EXCEPTION.
-
- @param[in, out] Ghcb A pointer to the GHCB
- @param[in] ExitCode VMGEXIT code to be assigned to the SwExitCode
- field of the GHCB.
- @param[in] ExitInfo1 VMGEXIT information to be assigned to the
- SwExitInfo1 field of the GHCB.
- @param[in] ExitInfo2 VMGEXIT information to be assigned to the
- SwExitInfo2 field of the GHCB.
-
- @retval 0 VMGEXIT succeeded.
- @return Exception number to be propagated, VMGEXIT
- processing did not succeed.
-
-**/
-UINT64
-EFIAPI
-VmgExit (
- IN OUT GHCB *Ghcb,
- IN UINT64 ExitCode,
- IN UINT64 ExitInfo1,
- IN UINT64 ExitInfo2
- )
-{
- GHCB_EVENT_INJECTION Event;
-
- Event.Uint64 = 0;
- Event.Elements.Vector = GP_EXCEPTION;
- Event.Elements.Type = GHCB_EVENT_INJECTION_TYPE_EXCEPTION;
- Event.Elements.Valid = 1;
-
- return Event.Uint64;
-}
-
-/**
- Perform pre-VMGEXIT initialization/preparation.
-
- Performs the necessary steps in preparation for invoking VMGEXIT. Must be
- called before setting any fields within the GHCB.
-
- @param[in, out] Ghcb A pointer to the GHCB
- @param[in, out] InterruptState A pointer to hold the current interrupt
- state, used for restoring in VmgDone ()
-
-**/
-VOID
-EFIAPI
-VmgInit (
- IN OUT GHCB *Ghcb,
- IN OUT BOOLEAN *InterruptState
- )
-{
-}
-
-/**
- Perform post-VMGEXIT cleanup.
-
- Performs the necessary steps to cleanup after invoking VMGEXIT. Must be
- called after obtaining needed fields within the GHCB.
-
- @param[in, out] Ghcb A pointer to the GHCB
- @param[in] InterruptState An indicator to conditionally (re)enable
- interrupts
-
-**/
-VOID
-EFIAPI
-VmgDone (
- IN OUT GHCB *Ghcb,
- IN BOOLEAN InterruptState
- )
-{
-}
-
-/**
- Marks a field at the specified offset as valid in the GHCB.
-
- The ValidBitmap area represents the areas of the GHCB that have been marked
- valid. Set the bit in ValidBitmap for the input offset.
-
- @param[in, out] Ghcb Pointer to the Guest-Hypervisor Communication Block
- @param[in] Offset Qword offset in the GHCB to mark valid
-
-**/
-VOID
-EFIAPI
-VmgSetOffsetValid (
- IN OUT GHCB *Ghcb,
- IN GHCB_REGISTER Offset
- )
-{
-}
-
-/**
- Checks if a specified offset is valid in the GHCB.
-
- The ValidBitmap area represents the areas of the GHCB that have been marked
- valid. Return whether the bit in the ValidBitmap is set for the input offset.
-
- @param[in] Ghcb A pointer to the GHCB
- @param[in] Offset Qword offset in the GHCB to mark valid
-
- @retval TRUE Offset is marked valid in the GHCB
- @retval FALSE Offset is not marked valid in the GHCB
-
-**/
-BOOLEAN
-EFIAPI
-VmgIsOffsetValid (
- IN GHCB *Ghcb,
- IN GHCB_REGISTER Offset
- )
-{
- return FALSE;
-}
-
-/**
- Handle a #VC exception.
-
- Performs the necessary processing to handle a #VC exception.
-
- The base library function returns an error equal to VC_EXCEPTION,
- to be propagated to the standard exception handling stack.
-
- @param[in, out] ExceptionType Pointer to an EFI_EXCEPTION_TYPE to be set
- as value to use on error.
- @param[in, out] SystemContext Pointer to EFI_SYSTEM_CONTEXT
-
- @retval EFI_SUCCESS Exception handled
- @retval EFI_UNSUPPORTED #VC not supported, (new) exception value to
- propagate provided
- @retval EFI_PROTOCOL_ERROR #VC handling failed, (new) exception value to
- propagate provided
-
-**/
-EFI_STATUS
-EFIAPI
-VmgExitHandleVc (
- IN OUT EFI_EXCEPTION_TYPE *ExceptionType,
- IN OUT EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- *ExceptionType = VC_EXCEPTION;
-
- return EFI_UNSUPPORTED;
-}
diff --git a/UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.inf b/UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.inf
deleted file mode 100644
index 4aab601939ff..000000000000
--- a/UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.inf
+++ /dev/null
@@ -1,28 +0,0 @@
-## @file
-# VMGEXIT Support Library.
-#
-# Copyright (C) 2020, Advanced Micro Devices, Inc. All rights reserved.<BR>
-# SPDX-License-Identifier: BSD-2-Clause-Patent
-#
-##
-
-[Defines]
- INF_VERSION = 0x00010005
- BASE_NAME = VmgExitLibNull
- MODULE_UNI_FILE = VmgExitLibNull.uni
- FILE_GUID = 3cd7368f-ef9b-4a9b-9571-2ed93813677e
- MODULE_TYPE = BASE
- VERSION_STRING = 1.0
- LIBRARY_CLASS = VmgExitLib
-
-[Sources.common]
- VmgExitLibNull.c
- VmTdExitNull.c
-
-[Packages]
- MdePkg/MdePkg.dec
- UefiCpuPkg/UefiCpuPkg.dec
-
-[LibraryClasses]
- BaseLib
-
diff --git a/UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.uni b/UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.uni
deleted file mode 100644
index 8639bc0e8ce9..000000000000
--- a/UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.uni
+++ /dev/null
@@ -1,15 +0,0 @@
-// /** @file
-// VMGEXIT support library instance.
-//
-// VMGEXIT support library instance.
-//
-// Copyright (C) 2020, Advanced Micro Devices, Inc. All rights reserved.<BR>
-// SPDX-License-Identifier: BSD-2-Clause-Patent
-//
-// **/
-
-
-#string STR_MODULE_ABSTRACT #language en-US "VMGEXIT support NULL library instance"
-
-#string STR_MODULE_DESCRIPTION #language en-US "VMGEXIT support NULL library instance."
-
diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec
index 8058b679412f..cff239d5283e 100644
--- a/UefiCpuPkg/UefiCpuPkg.dec
+++ b/UefiCpuPkg/UefiCpuPkg.dec
@@ -53,9 +53,6 @@
##
MpInitLib|Include/Library/MpInitLib.h
- ## @libraryclass Provides function to support VMGEXIT processing.
- VmgExitLib|Include/Library/VmgExitLib.h
-
## @libraryclass Provides function to support CcExit processing.
CcExitLib|Include/Library/CcExitLib.h
diff --git a/UefiCpuPkg/UefiCpuPkg.dsc b/UefiCpuPkg/UefiCpuPkg.dsc
index 57c74ba844d2..67b0ce46e455 100644
--- a/UefiCpuPkg/UefiCpuPkg.dsc
+++ b/UefiCpuPkg/UefiCpuPkg.dsc
@@ -59,7 +59,6 @@
PeCoffGetEntryPointLib|MdePkg/Library/BasePeCoffGetEntryPointLib/BasePeCoffGetEntryPointLib.inf
PeCoffExtraActionLib|MdePkg/Library/BasePeCoffExtraActionLibNull/BasePeCoffExtraActionLibNull.inf
TpmMeasurementLib|MdeModulePkg/Library/TpmMeasurementLibNull/TpmMeasurementLibNull.inf
- VmgExitLib|UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.inf
CcExitLib|UefiCpuPkg/Library/CcExitLibNull/CcExitLibNull.inf
MicrocodeLib|UefiCpuPkg/Library/MicrocodeLib/MicrocodeLib.inf
SmmCpuRendezvousLib|UefiCpuPkg/Library/SmmCpuRendezvousLib/SmmCpuRendezvousLib.inf
@@ -164,7 +163,6 @@
UefiCpuPkg/Library/SmmCpuFeaturesLib/SmmCpuFeaturesLib.inf
UefiCpuPkg/Library/SmmCpuFeaturesLib/SmmCpuFeaturesLibStm.inf
UefiCpuPkg/Library/SmmCpuFeaturesLib/StandaloneMmCpuFeaturesLib.inf
- UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.inf
UefiCpuPkg/Library/CcExitLibNull/CcExitLibNull.inf
UefiCpuPkg/PiSmmCommunication/PiSmmCommunicationPei.inf
UefiCpuPkg/PiSmmCommunication/PiSmmCommunicationSmm.inf
--
2.29.2.windows.2
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