diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h')
| -rw-r--r-- | roms/edk2/UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h | 611 |
1 files changed, 611 insertions, 0 deletions
diff --git a/roms/edk2/UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h b/roms/edk2/UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h new file mode 100644 index 000000000..27bd2f6b4 --- /dev/null +++ b/roms/edk2/UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h @@ -0,0 +1,611 @@ +/** @file
+ Register CPU Features Library to register and manage CPU features.
+
+ Copyright (c) 2017 - 2020, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __REGISTER_CPU_FEATURES_LIB_H__
+#define __REGISTER_CPU_FEATURES_LIB_H__
+
+#include <AcpiCpuData.h>
+#include <Register/Intel/Cpuid.h>
+#include <Protocol/MpService.h>
+
+///
+/// Defines used to identify a CPU feature. The lower 16-bits are used to
+/// identify a unique CPU feature and the value represents a bit number in
+/// a bit mask. The upper 16-bits are bit mask values that are used as
+/// modifiers of a CPU feature. When used in a list, the define value
+/// CPU_FEATURE_END is used to terminate a list of CPU feature values.
+/// @{
+#define CPU_FEATURE_AESNI 0
+#define CPU_FEATURE_TURBO_MODE 1
+#define CPU_FEATURE_MWAIT 2
+#define CPU_FEATURE_ACPI 3
+#define CPU_FEATURE_EIST 4
+#define CPU_FEATURE_RESERVED_5 5
+#define CPU_FEATURE_FASTSTRINGS 6
+#define CPU_FEATURE_VMX 7
+#define CPU_FEATURE_SMX 8
+#define CPU_FEATURE_LMCE 9
+#define CPU_FEATURE_LOCK_FEATURE_CONTROL_REGISTER 10
+#define CPU_FEATURE_LIMIT_CPUID_MAX_VAL 11
+#define CPU_FEATURE_MCE 12
+#define CPU_FEATURE_MCA 13
+#define CPU_FEATURE_MCG_CTL 14
+#define CPU_FEATURE_PENDING_BREAK 15
+#define CPU_FEATURE_C1E 16
+#define CPU_FEATURE_C1_AUTO_DEMOTION 17
+#define CPU_FEATURE_C3_AUTO_DEMOTION 18
+#define CPU_FEATURE_C1_UNDEMOTION 19
+#define CPU_FEATURE_C3_UNDEMOTION 20
+#define CPU_FEATURE_C_STATE 21
+#define CPU_FEATURE_TM 22
+#define CPU_FEATURE_TM2 23
+#define CPU_FEATURE_X2APIC 24
+#define CPU_FEATURE_RESERVED_25 25
+#define CPU_FEATURE_RESERVED_26 26
+#define CPU_FEATURE_RESERVED_27 27
+#define CPU_FEATURE_RESERVED_28 28
+#define CPU_FEATURE_RESERVED_29 29
+#define CPU_FEATURE_RESERVED_30 30
+#define CPU_FEATURE_RESERVED_31 31
+
+#define CPU_FEATURE_L2_PREFETCHER (32+0)
+#define CPU_FEATURE_L1_DATA_PREFETCHER (32+1)
+#define CPU_FEATURE_HARDWARE_PREFETCHER (32+2)
+#define CPU_FEATURE_ADJACENT_CACHE_LINE_PREFETCH (32+3)
+#define CPU_FEATURE_DCU_PREFETCHER (32+4)
+#define CPU_FEATURE_IP_PREFETCHER (32+5)
+#define CPU_FEATURE_MLC_STREAMER_PREFETCHER (32+6)
+#define CPU_FEATURE_MLC_SPATIAL_PREFETCHER (32+7)
+#define CPU_FEATURE_THREE_STRIKE_COUNTER (32+8)
+#define CPU_FEATURE_APIC_TPR_UPDATE_MESSAGE (32+9)
+#define CPU_FEATURE_ENERGY_PERFORMANCE_BIAS (32+10)
+#define CPU_FEATURE_PPIN (32+11)
+#define CPU_FEATURE_PROC_TRACE (32+12)
+
+#define CPU_FEATURE_BEFORE_ALL BIT23
+#define CPU_FEATURE_AFTER_ALL BIT24
+#define CPU_FEATURE_THREAD_BEFORE BIT25
+#define CPU_FEATURE_THREAD_AFTER BIT26
+#define CPU_FEATURE_CORE_BEFORE BIT27
+#define CPU_FEATURE_CORE_AFTER BIT28
+#define CPU_FEATURE_PACKAGE_BEFORE BIT29
+#define CPU_FEATURE_PACKAGE_AFTER BIT30
+#define CPU_FEATURE_END MAX_UINT32
+/// @}
+
+///
+/// The bit field to indicate whether the processor is the first in its parent scope.
+///
+typedef struct {
+ //
+ // Set to 1 when current processor is the first thread in the core it resides in.
+ //
+ UINT32 Thread : 1;
+ //
+ // Set to 1 when current processor is a thread of the first core in the module it resides in.
+ //
+ UINT32 Core : 1;
+ //
+ // Set to 1 when current processor is a thread of the first module in the tile it resides in.
+ //
+ UINT32 Module : 1;
+ //
+ // Set to 1 when current processor is a thread of the first tile in the die it resides in.
+ //
+ UINT32 Tile : 1;
+ //
+ // Set to 1 when current processor is a thread of the first die in the package it resides in.
+ //
+ UINT32 Die : 1;
+ //
+ // Set to 1 when current processor is a thread of the first package in the system.
+ //
+ UINT32 Package : 1;
+ UINT32 Reserved : 26;
+} REGISTER_CPU_FEATURE_FIRST_PROCESSOR;
+
+///
+/// CPU Information passed into the SupportFunc and InitializeFunc of the
+/// RegisterCpuFeature() library function. This structure contains information
+/// that is commonly used during CPU feature detection and initialization.
+///
+typedef struct {
+ ///
+ /// The package that the CPU resides
+ ///
+ EFI_PROCESSOR_INFORMATION ProcessorInfo;
+
+ ///
+ /// The bit flag indicating whether the CPU is the first Thread/Core/Module/Tile/Die/Package in its parent scope.
+ ///
+ REGISTER_CPU_FEATURE_FIRST_PROCESSOR First;
+ ///
+ /// The Display Family of the CPU computed from CPUID leaf CPUID_VERSION_INFO
+ ///
+ UINT32 DisplayFamily;
+ ///
+ /// The Display Model of the CPU computed from CPUID leaf CPUID_VERSION_INFO
+ ///
+ UINT32 DisplayModel;
+ ///
+ /// The Stepping ID of the CPU computed from CPUID leaf CPUID_VERSION_INFO
+ ///
+ UINT32 SteppingId;
+ ///
+ /// The Processor Type of the CPU computed from CPUID leaf CPUID_VERSION_INFO
+ ///
+ UINT32 ProcessorType;
+ ///
+ /// Bit field structured returned in ECX from CPUID leaf CPUID_VERSION_INFO
+ ///
+ CPUID_VERSION_INFO_ECX CpuIdVersionInfoEcx;
+ ///
+ /// Bit field structured returned in EDX from CPUID leaf CPUID_VERSION_INFO
+ ///
+ CPUID_VERSION_INFO_EDX CpuIdVersionInfoEdx;
+} REGISTER_CPU_FEATURE_INFORMATION;
+
+/**
+ Determines if a CPU feature is enabled in PcdCpuFeaturesSupport bit mask.
+ If a CPU feature is disabled in PcdCpuFeaturesSupport then all the code/data
+ associated with that feature should be optimized away if compiler
+ optimizations are enabled.
+
+ @param[in] Feature The bit number of the CPU feature to check in the PCD
+ PcdCpuFeaturesSupport.
+
+ @retval TRUE The CPU feature is set in PcdCpuFeaturesSupport.
+ @retval FALSE The CPU feature is not set in PcdCpuFeaturesSupport.
+
+ @note This service could be called by BSP only.
+**/
+BOOLEAN
+EFIAPI
+IsCpuFeatureSupported (
+ IN UINT32 Feature
+ );
+
+/**
+ Determines if a CPU feature is set in PcdCpuFeaturesSetting bit mask.
+
+ @param[in] Feature The bit number of the CPU feature to check in the PCD
+ PcdCpuFeaturesSetting.
+
+ @retval TRUE The CPU feature is set in PcdCpuFeaturesSetting.
+ @retval FALSE The CPU feature is not set in PcdCpuFeaturesSetting.
+
+ @note This service could be called by BSP only.
+**/
+BOOLEAN
+EFIAPI
+IsCpuFeatureInSetting (
+ IN UINT32 Feature
+ );
+
+/**
+ Prepares for the data used by CPU feature detection and initialization.
+
+ @param[in] NumberOfProcessors The number of CPUs in the platform.
+
+ @return Pointer to a buffer of CPU related configuration data.
+
+ @note This service could be called by BSP only.
+**/
+typedef
+VOID *
+(EFIAPI *CPU_FEATURE_GET_CONFIG_DATA)(
+ IN UINTN NumberOfProcessors
+ );
+
+/**
+ Detects if CPU feature supported on current processor.
+
+ @param[in] ProcessorNumber The index of the CPU executing this function.
+ @param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION
+ structure for the CPU executing this function.
+ @param[in] ConfigData A pointer to the configuration buffer returned
+ by CPU_FEATURE_GET_CONFIG_DATA. NULL if
+ CPU_FEATURE_GET_CONFIG_DATA was not provided in
+ RegisterCpuFeature().
+
+ @retval TRUE CPU feature is supported.
+ @retval FALSE CPU feature is not supported.
+
+ @note This service could be called by BSP/APs.
+**/
+typedef
+BOOLEAN
+(EFIAPI *CPU_FEATURE_SUPPORT)(
+ IN UINTN ProcessorNumber,
+ IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,
+ IN VOID *ConfigData OPTIONAL
+ );
+
+/**
+ Initializes CPU feature to specific state.
+
+ This service does not initialize hardware and only produces entries in the
+ Register Table for specified processor. Hardware initialization on BSP/APs
+ will be done in CpuFeaturesInitialize().
+
+ @param[in] ProcessorNumber The index of the CPU executing this function.
+ @param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION
+ structure for the CPU executing this function.
+ @param[in] ConfigData A pointer to the configuration buffer returned
+ by CPU_FEATURE_GET_CONFIG_DATA. NULL if
+ CPU_FEATURE_GET_CONFIG_DATA was not provided in
+ RegisterCpuFeature().
+ @param[in] State If TRUE, then the CPU feature must be enabled.
+ If FALSE, then the CPU feature must be disabled.
+
+ @retval RETURN_SUCCESS CPU feature is initialized.
+
+ @note This service could be called by BSP only.
+**/
+typedef
+RETURN_STATUS
+(EFIAPI *CPU_FEATURE_INITIALIZE)(
+ IN UINTN ProcessorNumber,
+ IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,
+ IN VOID *ConfigData, OPTIONAL
+ IN BOOLEAN State
+ );
+
+/**
+ Registers a CPU Feature.
+
+ @param[in] FeatureName A Null-terminated Ascii string indicates CPU feature
+ name.
+ @param[in] GetConfigDataFunc CPU feature get configuration data function. This
+ is an optional parameter that may be NULL. If NULL,
+ then the most recently registered function for the
+ CPU feature is used. If no functions are registered
+ for a CPU feature, then the CPU configuration data
+ for the registered feature is NULL.
+ @param[in] SupportFunc CPU feature support function. This is an optional
+ parameter that may be NULL. If NULL, then the most
+ recently registered function for the CPU feature is
+ used. If no functions are registered for a CPU
+ feature, then the CPU feature is assumed to be
+ supported by all CPUs.
+ @param[in] InitializeFunc CPU feature initialize function. This is an optional
+ parameter that may be NULL. If NULL, then the most
+ recently registered function for the CPU feature is
+ used. If no functions are registered for a CPU
+ feature, then the CPU feature initialization is
+ skipped.
+ @param[in] ... Variable argument list of UINT32 CPU feature value.
+ Values with no modifiers are the features provided
+ by the registered functions.
+ Values with CPU_FEATURE_BEFORE modifier are features
+ that must be initialized after the features provided
+ by the registered functions are used.
+ Values with CPU_FEATURE_AFTER modifier are features
+ that must be initialized before the features provided
+ by the registered functions are used.
+ The last argument in this variable argument list must
+ always be CPU_FEATURE_END.
+
+ @retval RETURN_SUCCESS The CPU feature was successfully registered.
+ @retval RETURN_OUT_OF_RESOURCES There are not enough resources to register
+ the CPU feature.
+ @retval RETURN_UNSUPPORTED Registration of the CPU feature is not
+ supported due to a circular dependency between
+ BEFORE and AFTER features.
+
+ @note This service could be called by BSP only.
+**/
+RETURN_STATUS
+EFIAPI
+RegisterCpuFeature (
+ IN CHAR8 *FeatureName, OPTIONAL
+ IN CPU_FEATURE_GET_CONFIG_DATA GetConfigDataFunc, OPTIONAL
+ IN CPU_FEATURE_SUPPORT SupportFunc, OPTIONAL
+ IN CPU_FEATURE_INITIALIZE InitializeFunc, OPTIONAL
+ ...
+ );
+
+/**
+ Performs CPU features detection.
+
+ This service will invoke MP service to check CPU features'
+ capabilities on BSP/APs.
+
+ @note This service could be called by BSP only.
+**/
+VOID
+EFIAPI
+CpuFeaturesDetect (
+ VOID
+ );
+
+/**
+ Performs CPU features Initialization.
+
+ This service will invoke MP service to perform CPU features
+ initialization on BSP/APs per user configuration.
+
+ @note This service could be called by BSP only.
+**/
+VOID
+EFIAPI
+CpuFeaturesInitialize (
+ VOID
+ );
+
+/**
+ Switches to assigned BSP after CPU features initialization.
+
+ @param[in] ProcessorNumber The index of the CPU executing this function.
+
+ @note This service could be called by BSP only.
+**/
+VOID
+EFIAPI
+SwitchBspAfterFeaturesInitialize (
+ IN UINTN ProcessorNumber
+ );
+
+/**
+ Adds an entry in specified register table.
+
+ This function adds an entry in specified register table, with given register type,
+ register index, bit section and value.
+
+ @param[in] ProcessorNumber The index of the CPU to add a register table entry.
+ @param[in] RegisterType Type of the register to program
+ @param[in] Index Index of the register to program
+ @param[in] ValueMask Mask of bits in register to write
+ @param[in] Value Value to write
+
+ @note This service could be called by BSP only.
+**/
+VOID
+EFIAPI
+CpuRegisterTableWrite (
+ IN UINTN ProcessorNumber,
+ IN REGISTER_TYPE RegisterType,
+ IN UINT64 Index,
+ IN UINT64 ValueMask,
+ IN UINT64 Value
+ );
+
+/**
+ Adds an entry in specified register table.
+
+ This function adds an entry in specified register table, with given register type,
+ register index, bit section and value.
+
+ Driver will test the current value before setting new value.
+
+ @param[in] ProcessorNumber The index of the CPU to add a register table entry
+ @param[in] RegisterType Type of the register to program
+ @param[in] Index Index of the register to program
+ @param[in] ValueMask Mask of bits in register to write
+ @param[in] Value Value to write
+
+ @note This service could be called by BSP only.
+**/
+VOID
+EFIAPI
+CpuRegisterTableTestThenWrite (
+ IN UINTN ProcessorNumber,
+ IN REGISTER_TYPE RegisterType,
+ IN UINT64 Index,
+ IN UINT64 ValueMask,
+ IN UINT64 Value
+ );
+
+/**
+ Adds an entry in specified Pre-SMM register table.
+
+ This function adds an entry in specified register table, with given register type,
+ register index, bit section and value.
+
+ @param[in] ProcessorNumber The index of the CPU to add a register table entry.
+ @param[in] RegisterType Type of the register to program
+ @param[in] Index Index of the register to program
+ @param[in] ValueMask Mask of bits in register to write
+ @param[in] Value Value to write
+
+ @note This service could be called by BSP only.
+**/
+VOID
+EFIAPI
+PreSmmCpuRegisterTableWrite (
+ IN UINTN ProcessorNumber,
+ IN REGISTER_TYPE RegisterType,
+ IN UINT64 Index,
+ IN UINT64 ValueMask,
+ IN UINT64 Value
+ );
+
+/**
+ Adds a 32-bit register write entry in specified register table.
+
+ This macro adds an entry in specified register table, with given register type,
+ register index, and value.
+
+ @param[in] ProcessorNumber The index of the CPU to add a register table entry.
+ @param[in] RegisterType Type of the register to program
+ @param[in] Index Index of the register to program
+ @param[in] Value Value to write
+
+ @note This service could be called by BSP only.
+**/
+#define CPU_REGISTER_TABLE_WRITE32(ProcessorNumber, RegisterType, Index, Value) \
+ do { \
+ CpuRegisterTableWrite (ProcessorNumber, RegisterType, Index, MAX_UINT32, Value); \
+ } while(FALSE);
+
+/**
+ Adds a 32-bit register write entry in specified register table.
+
+ This macro adds an entry in specified register table, with given register type,
+ register index, and value.
+
+ Driver will test the current value before setting new value.
+
+ @param[in] ProcessorNumber The index of the CPU to add a register table entry.
+ @param[in] RegisterType Type of the register to program
+ @param[in] Index Index of the register to program
+ @param[in] Value Value to write
+
+ @note This service could be called by BSP only.
+**/
+#define CPU_REGISTER_TABLE_TEST_THEN_WRITE32(ProcessorNumber, RegisterType, Index, Value) \
+ do { \
+ CpuRegisterTableTestThenWrite (ProcessorNumber, RegisterType, Index, MAX_UINT32, Value); \
+ } while(FALSE);
+
+/**
+ Adds a 64-bit register write entry in specified register table.
+
+ This macro adds an entry in specified register table, with given register type,
+ register index, and value.
+
+ @param[in] ProcessorNumber The index of the CPU to add a register table entry.
+ @param[in] RegisterType Type of the register to program
+ @param[in] Index Index of the register to program
+ @param[in] Value Value to write
+
+ @note This service could be called by BSP only.
+**/
+#define CPU_REGISTER_TABLE_WRITE64(ProcessorNumber, RegisterType, Index, Value) \
+ do { \
+ CpuRegisterTableWrite (ProcessorNumber, RegisterType, Index, MAX_UINT64, Value); \
+ } while(FALSE);
+
+/**
+ Adds a 64-bit register write entry in specified register table.
+
+ This macro adds an entry in specified register table, with given register type,
+ register index, and value.
+
+ Driver will test the current value before setting new value.
+
+ @param[in] ProcessorNumber The index of the CPU to add a register table entry.
+ @param[in] RegisterType Type of the register to program
+ @param[in] Index Index of the register to program
+ @param[in] Value Value to write
+
+ @note This service could be called by BSP only.
+**/
+#define CPU_REGISTER_TABLE_TEST_THEN_WRITE64(ProcessorNumber, RegisterType, Index, Value) \
+ do { \
+ CpuRegisterTableTestThenWrite (ProcessorNumber, RegisterType, Index, MAX_UINT64, Value); \
+ } while(FALSE);
+
+/**
+ Adds a bit field write entry in specified register table.
+
+ This macro adds an entry in specified register table, with given register type,
+ register index, bit field section, and value.
+
+ @param[in] ProcessorNumber The index of the CPU to add a register table entry.
+ @param[in] RegisterType Type of the register to program.
+ @param[in] Index Index of the register to program.
+ @param[in] Type The data type name of a register structure.
+ @param[in] Field The bit fiel name in register structure to write.
+ @param[in] Value Value to write to the bit field.
+
+ @note This service could be called by BSP only.
+**/
+#define CPU_REGISTER_TABLE_WRITE_FIELD(ProcessorNumber, RegisterType, Index, Type, Field, Value) \
+ do { \
+ UINT64 ValueMask; \
+ ValueMask = MAX_UINT64; \
+ ((Type *)(&ValueMask))->Field = 0; \
+ CpuRegisterTableWrite (ProcessorNumber, RegisterType, Index, ~ValueMask, Value); \
+ } while(FALSE);
+
+/**
+ Adds a bit field write entry in specified register table.
+
+ This macro adds an entry in specified register table, with given register type,
+ register index, bit field section, and value.
+
+ Driver will test the current value before setting new value.
+
+ @param[in] ProcessorNumber The index of the CPU to add a register table entry.
+ @param[in] RegisterType Type of the register to program.
+ @param[in] Index Index of the register to program.
+ @param[in] Type The data type name of a register structure.
+ @param[in] Field The bit fiel name in register structure to write.
+ @param[in] Value Value to write to the bit field.
+
+ @note This service could be called by BSP only.
+**/
+#define CPU_REGISTER_TABLE_TEST_THEN_WRITE_FIELD(ProcessorNumber, RegisterType, Index, Type, Field, Value) \
+ do { \
+ UINT64 ValueMask; \
+ ValueMask = MAX_UINT64; \
+ ((Type *)(&ValueMask))->Field = 0; \
+ CpuRegisterTableTestThenWrite (ProcessorNumber, RegisterType, Index, ~ValueMask, Value); \
+ } while(FALSE);
+
+/**
+ Adds a 32-bit register write entry in specified register table.
+
+ This macro adds an entry in specified register table, with given register type,
+ register index, and value.
+
+ @param[in] ProcessorNumber The index of the CPU to add a register table entry.
+ @param[in] RegisterType Type of the register to program
+ @param[in] Index Index of the register to program
+ @param[in] Value Value to write
+
+ @note This service could be called by BSP only.
+**/
+#define PRE_SMM_CPU_REGISTER_TABLE_WRITE32(ProcessorNumber, RegisterType, Index, Value) \
+ do { \
+ PreSmmCpuRegisterTableWrite (ProcessorNumber, RegisterType, Index, MAX_UINT32, Value); \
+ } while(FALSE);
+
+/**
+ Adds a 64-bit register write entry in specified register table.
+
+ This macro adds an entry in specified register table, with given register type,
+ register index, and value.
+
+ @param[in] ProcessorNumber The index of the CPU to add a register table entry.
+ @param[in] RegisterType Type of the register to program
+ @param[in] Index Index of the register to program
+ @param[in] Value Value to write
+
+ @note This service could be called by BSP only.
+**/
+#define PRE_SMM_CPU_REGISTER_TABLE_WRITE64(ProcessorNumber, RegisterType, Index, Value) \
+ do { \
+ PreSmmCpuRegisterTableWrite (ProcessorNumber, RegisterType, Index, MAX_UINT64, Value); \
+ } while(FALSE);
+
+/**
+ Adds a bit field write entry in specified register table.
+
+ This macro adds an entry in specified register table, with given register type,
+ register index, bit field section, and value.
+
+ @param[in] ProcessorNumber The index of the CPU to add a register table entry.
+ @param[in] RegisterType Type of the register to program.
+ @param[in] Index Index of the register to program.
+ @param[in] Type The data type name of a register structure.
+ @param[in] Field The bit fiel name in register structure to write.
+ @param[in] Value Value to write to the bit field.
+
+ @note This service could be called by BSP only.
+**/
+#define PRE_SMM_CPU_REGISTER_TABLE_WRITE_FIELD(ProcessorNumber, RegisterType, Index, Type, Field, Value) \
+ do { \
+ UINT64 ValueMask; \
+ ValueMask = MAX_UINT64; \
+ ((Type *)(&ValueMask))->Field = 0; \
+ PreSmmCpuRegisterTableWrite (ProcessorNumber, RegisterType, Index, ~ValueMask, Value); \
+ } while(FALSE);
+
+#endif
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