From 548013c07f94975ebc007cdcda6c07deca8c97d7 Mon Sep 17 00:00:00 2001 From: Jeff Fan Date: Tue, 7 Mar 2017 16:35:40 +0800 Subject: [PATCH] UefiCpuPkg/Include/Library: Add Register CPU Features Library Register CPU Features Library is used to register/manage/program CPU features. NULL CPU features library instance could consume it register CPU features functions. CPU Feature module could consume this library to detect/analysis/program CPU features on BSP/APs. v4: Fix GCC build issue. Cc: Feng Tian Cc: Michael Kinney Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan Reviewed-by: Feng Tian --- .../Include/Library/RegisterCpuFeaturesLib.h | 516 ++++++++++++++++++ UefiCpuPkg/UefiCpuPkg.dec | 5 + 2 files changed, 521 insertions(+) create mode 100644 UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h diff --git a/UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h b/UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h new file mode 100644 index 0000000000..42eb3b28c1 --- /dev/null +++ b/UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h @@ -0,0 +1,516 @@ +/** @file + Register CPU Features Library to register and manage CPU features. + + Copyright (c) 2017, Intel Corporation. All rights reserved.
+ This program and the accompanying materials + are licensed and made available under the terms and conditions of the BSD License + which accompanies this distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#ifndef __REGISTER_CPU_FEATURES_LIB_H__ +#define __REGISTER_CPU_FEATURES_LIB_H__ + +#include +#include +#include + +/// +/// 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_XD 5 +#define CPU_FEATURE_FASTSTRINGS 6 +#define CPU_FEATURE_VMX 7 +#define CPU_FEATURE_SMX 8 +#define CPU_FEATURE_SENTER 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_AUTO_UNDEMOTION 19 +#define CPU_FEATURE_C3_AUTO_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_STRICK_COUNTER (32+8) +#define CPU_FEATURE_APIC_TPR_UPDATE_MESSAGE (32+9) +#define CPU_FEATURE_ENERGY_PERFORMANCE_BIAS (32+10) + +#define CPU_FEATURE_BEFORE_ALL BIT27 +#define CPU_FEATURE_AFTER_ALL BIT28 +#define CPU_FEATURE_BEFORE BIT29 +#define CPU_FEATURE_AFTER BIT30 +#define CPU_FEATURE_END MAX_UINT32 +/// @} + +/// +/// 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 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 + ); + +/** + Determines if a CPU feature is set in PcdCpuFeaturesCapability bit mask. + + @param[in] Feature The bit number of the CPU feature to check in the PCD + PcdCpuFeaturesCapability. + + @retval TRUE The CPU feature is set in PcdCpuFeaturesCapability. + @retval FALSE The CPU feature is not set in PcdCpuFeaturesCapability. + + @note This service could be called by BSP only. +**/ +BOOLEAN +EFIAPI +IsCpuFeatureCapability ( + IN UINT32 Feature + ); + +/** + Determines if a CPU feature is set in PcdCpuFeaturesUserConfiguration bit mask. + + @param[in] Feature The bit number of the CPU feature to check in the PCD + PcdCpuFeaturesUserConfiguration. + + @retval TRUE The CPU feature is set in PcdCpuFeaturesUserConfiguration. + @retval FALSE The CPU feature is not set in PcdCpuFeaturesUserConfiguration. + + @note This service could be called by BSP only. +**/ +BOOLEAN +EFIAPI +IsCpuFeatureUserConfiguration ( + 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 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 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 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 ... 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 UINT32 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 UINT32 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 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 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 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 diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec index f7abe1cfd9..04c7c1ebc5 100644 --- a/UefiCpuPkg/UefiCpuPkg.dec +++ b/UefiCpuPkg/UefiCpuPkg.dec @@ -29,6 +29,11 @@ ## UefiCpuLib|Include/Library/UefiCpuLib.h + ## @libraryclass Defines some routines that are used to register/manage/program + ## CPU features. + ## + UefiCpuLib|Include/Library/RegisterCpuFeaturesLib.h + [LibraryClasses.IA32, LibraryClasses.X64] ## @libraryclass Provides functions to manage MTRR settings on IA32 and X64 CPUs. ## -- 2.39.2