de2204a9e8
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1829 There will be ASSERT if LMCE is supported as below. DXE_ASSERT!: [CpuFeaturesDxe] XXX\UefiCpuPkg\Library\CpuCommonFeaturesLib\MachineCheck.c (342): ConfigData != ((void *) 0) The code should get Config Data and FeatureControlGetConfigData could be used. This issue is there since the code was added at the commit below. Revision:3d6275c113Date: 2017/8/4 8:46:41 UefiCpuPkg CpuCommonFeaturesLib: Enable LMCE feature. The commits below are also related to move the code. Revision:0233871442Date: 2017/9/1 10:12:38 UefiCpuPkg/Lmce.c Remove useless file. Revision:306a5bcc6bDate: 2017/8/17 11:40:38 UefiCpuPkg/CpuCommonFeaturesLib: Merge machine check code to same file. So, the code may not be tested at all on a platform that supports LMCE. BTW: A typo in LmceInitialize is also fixed. The typo is introduced by the commit below. Revision:d28daaddb3Date: 2018/10/17 9:24:05 UefiCpuPkg/CpuCommonFeaturesLib: Register MSR base on scope Info. Cc: Laszlo Ersek <lersek@redhat.com> Cc: Eric Dong <eric.dong@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Chandana Kumar <chandana.c.kumar@intel.com> Cc: Kevin Li <kevin.y.li@intel.com> Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Eric Dong <eric.dong@intel.com>
350 lines
13 KiB
C
350 lines
13 KiB
C
/** @file
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Machine Check features.
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Copyright (c) 2017 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "CpuCommonFeatures.h"
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/**
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Detects if Machine Check Exception feature supported on current processor.
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@param[in] ProcessorNumber The index of the CPU executing this function.
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@param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION
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structure for the CPU executing this function.
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@param[in] ConfigData A pointer to the configuration buffer returned
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by CPU_FEATURE_GET_CONFIG_DATA. NULL if
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CPU_FEATURE_GET_CONFIG_DATA was not provided in
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RegisterCpuFeature().
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@retval TRUE Machine Check Exception feature is supported.
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@retval FALSE Machine Check Exception feature is not supported.
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@note This service could be called by BSP/APs.
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**/
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BOOLEAN
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EFIAPI
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MceSupport (
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IN UINTN ProcessorNumber,
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IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,
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IN VOID *ConfigData OPTIONAL
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)
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{
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return (CpuInfo->CpuIdVersionInfoEdx.Bits.MCE == 1);
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}
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/**
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Initializes Machine Check Exception feature to specific state.
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@param[in] ProcessorNumber The index of the CPU executing this function.
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@param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION
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structure for the CPU executing this function.
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@param[in] ConfigData A pointer to the configuration buffer returned
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by CPU_FEATURE_GET_CONFIG_DATA. NULL if
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CPU_FEATURE_GET_CONFIG_DATA was not provided in
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RegisterCpuFeature().
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@param[in] State If TRUE, then the Machine Check Exception feature must be enabled.
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If FALSE, then the Machine Check Exception feature must be disabled.
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@retval RETURN_SUCCESS Machine Check Exception feature is initialized.
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@note This service could be called by BSP only.
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**/
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RETURN_STATUS
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EFIAPI
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MceInitialize (
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IN UINTN ProcessorNumber,
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IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,
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IN VOID *ConfigData, OPTIONAL
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IN BOOLEAN State
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)
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{
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//
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// Set MCE bit in CR4
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//
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CPU_REGISTER_TABLE_WRITE_FIELD (
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ProcessorNumber,
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ControlRegister,
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4,
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IA32_CR4,
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Bits.MCE,
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(State) ? 1 : 0
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);
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return RETURN_SUCCESS;
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}
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/**
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Detects if Machine Check Architecture feature supported on current processor.
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@param[in] ProcessorNumber The index of the CPU executing this function.
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@param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION
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structure for the CPU executing this function.
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@param[in] ConfigData A pointer to the configuration buffer returned
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by CPU_FEATURE_GET_CONFIG_DATA. NULL if
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CPU_FEATURE_GET_CONFIG_DATA was not provided in
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RegisterCpuFeature().
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@retval TRUE Machine Check Architecture feature is supported.
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@retval FALSE Machine Check Architecture feature is not supported.
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@note This service could be called by BSP/APs.
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**/
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BOOLEAN
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EFIAPI
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McaSupport (
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IN UINTN ProcessorNumber,
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IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,
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IN VOID *ConfigData OPTIONAL
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)
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{
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if (!MceSupport (ProcessorNumber, CpuInfo, ConfigData)) {
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return FALSE;
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}
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return (CpuInfo->CpuIdVersionInfoEdx.Bits.MCA == 1);
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}
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/**
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Initializes Machine Check Architecture feature to specific state.
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@param[in] ProcessorNumber The index of the CPU executing this function.
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@param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION
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structure for the CPU executing this function.
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@param[in] ConfigData A pointer to the configuration buffer returned
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by CPU_FEATURE_GET_CONFIG_DATA. NULL if
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CPU_FEATURE_GET_CONFIG_DATA was not provided in
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RegisterCpuFeature().
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@param[in] State If TRUE, then the Machine Check Architecture feature must be enabled.
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If FALSE, then the Machine Check Architecture feature must be disabled.
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@retval RETURN_SUCCESS Machine Check Architecture feature is initialized.
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@note This service could be called by BSP only.
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**/
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RETURN_STATUS
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EFIAPI
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McaInitialize (
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IN UINTN ProcessorNumber,
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IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,
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IN VOID *ConfigData, OPTIONAL
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IN BOOLEAN State
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)
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{
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MSR_IA32_MCG_CAP_REGISTER McgCap;
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UINT32 BankIndex;
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//
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// The scope of MSR_IA32_MC*_CTL/MSR_IA32_MC*_STATUS is core for below processor type, only program
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// MSR_IA32_MC*_CTL/MSR_IA32_MC*_STATUS for thread 0 in each core.
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//
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if (IS_ATOM_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
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IS_SILVERMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
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IS_SANDY_BRIDGE_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
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IS_SKYLAKE_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
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IS_XEON_PHI_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
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IS_PENTIUM_4_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
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IS_CORE_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel)) {
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if (CpuInfo->ProcessorInfo.Location.Thread != 0) {
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return RETURN_SUCCESS;
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}
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}
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//
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// The scope of MSR_IA32_MC*_CTL/MSR_IA32_MC*_STATUS is package for below processor type, only program
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// MSR_IA32_MC*_CTL/MSR_IA32_MC*_STATUS for thread 0 core 0 in each package.
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//
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if (IS_NEHALEM_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel)) {
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if ((CpuInfo->ProcessorInfo.Location.Thread != 0) || (CpuInfo->ProcessorInfo.Location.Core != 0)) {
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return RETURN_SUCCESS;
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}
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}
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if (State) {
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McgCap.Uint64 = AsmReadMsr64 (MSR_IA32_MCG_CAP);
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for (BankIndex = 0; BankIndex < (UINT32) McgCap.Bits.Count; BankIndex++) {
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CPU_REGISTER_TABLE_WRITE64 (
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ProcessorNumber,
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Msr,
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MSR_IA32_MC0_CTL + BankIndex * 4,
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MAX_UINT64
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);
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}
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if (PcdGetBool (PcdIsPowerOnReset)) {
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for (BankIndex = 0; BankIndex < (UINTN) McgCap.Bits.Count; BankIndex++) {
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CPU_REGISTER_TABLE_WRITE64 (
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ProcessorNumber,
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Msr,
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MSR_IA32_MC0_STATUS + BankIndex * 4,
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0
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);
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}
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}
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}
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return RETURN_SUCCESS;
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}
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/**
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Detects if IA32_MCG_CTL feature supported on current processor.
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@param[in] ProcessorNumber The index of the CPU executing this function.
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@param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION
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structure for the CPU executing this function.
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@param[in] ConfigData A pointer to the configuration buffer returned
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by CPU_FEATURE_GET_CONFIG_DATA. NULL if
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CPU_FEATURE_GET_CONFIG_DATA was not provided in
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RegisterCpuFeature().
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@retval TRUE IA32_MCG_CTL feature is supported.
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@retval FALSE IA32_MCG_CTL feature is not supported.
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@note This service could be called by BSP/APs.
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**/
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BOOLEAN
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EFIAPI
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McgCtlSupport (
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IN UINTN ProcessorNumber,
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IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,
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IN VOID *ConfigData OPTIONAL
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)
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{
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MSR_IA32_MCG_CAP_REGISTER McgCap;
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if (!McaSupport (ProcessorNumber, CpuInfo, ConfigData)) {
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return FALSE;
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}
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McgCap.Uint64 = AsmReadMsr64 (MSR_IA32_MCG_CAP);
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return (McgCap.Bits.MCG_CTL_P == 1);
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}
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/**
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Initializes IA32_MCG_CTL feature to specific state.
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@param[in] ProcessorNumber The index of the CPU executing this function.
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@param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION
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structure for the CPU executing this function.
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@param[in] ConfigData A pointer to the configuration buffer returned
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by CPU_FEATURE_GET_CONFIG_DATA. NULL if
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CPU_FEATURE_GET_CONFIG_DATA was not provided in
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RegisterCpuFeature().
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@param[in] State If TRUE, then the IA32_MCG_CTL feature must be enabled.
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If FALSE, then the IA32_MCG_CTL feature must be disabled.
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@retval RETURN_SUCCESS IA32_MCG_CTL feature is initialized.
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@note This service could be called by BSP only.
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**/
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RETURN_STATUS
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EFIAPI
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McgCtlInitialize (
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IN UINTN ProcessorNumber,
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IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,
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IN VOID *ConfigData, OPTIONAL
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IN BOOLEAN State
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)
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{
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CPU_REGISTER_TABLE_WRITE64 (
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ProcessorNumber,
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Msr,
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MSR_IA32_MCG_CTL,
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(State)? MAX_UINT64 : 0
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);
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return RETURN_SUCCESS;
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}
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/**
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Detects if Local machine check exception feature supported on current
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processor.
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@param[in] ProcessorNumber The index of the CPU executing this function.
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@param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION
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structure for the CPU executing this function.
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@param[in] ConfigData A pointer to the configuration buffer returned
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by CPU_FEATURE_GET_CONFIG_DATA. NULL if
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CPU_FEATURE_GET_CONFIG_DATA was not provided in
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RegisterCpuFeature().
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@retval TRUE Local machine check exception feature is supported.
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@retval FALSE Local machine check exception feature is not supported.
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@note This service could be called by BSP/APs.
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**/
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BOOLEAN
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EFIAPI
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LmceSupport (
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IN UINTN ProcessorNumber,
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IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,
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IN VOID *ConfigData OPTIONAL
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)
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{
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MSR_IA32_MCG_CAP_REGISTER McgCap;
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if (!McaSupport (ProcessorNumber, CpuInfo, ConfigData)) {
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return FALSE;
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}
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McgCap.Uint64 = AsmReadMsr64 (MSR_IA32_MCG_CAP);
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if (ProcessorNumber == 0) {
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DEBUG ((EFI_D_INFO, "LMCE eanble = %x\n", (BOOLEAN) (McgCap.Bits.MCG_LMCE_P != 0)));
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}
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return (BOOLEAN) (McgCap.Bits.MCG_LMCE_P != 0);
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}
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/**
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Initializes Local machine check exception feature to specific state.
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@param[in] ProcessorNumber The index of the CPU executing this function.
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@param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION
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structure for the CPU executing this function.
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@param[in] ConfigData A pointer to the configuration buffer returned
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by CPU_FEATURE_GET_CONFIG_DATA. NULL if
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CPU_FEATURE_GET_CONFIG_DATA was not provided in
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RegisterCpuFeature().
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@param[in] State If TRUE, then the Local machine check exception
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feature must be enabled.
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If FALSE, then the Local machine check exception
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feature must be disabled.
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@retval RETURN_SUCCESS Local machine check exception feature is initialized.
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**/
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RETURN_STATUS
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EFIAPI
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LmceInitialize (
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IN UINTN ProcessorNumber,
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IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,
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IN VOID *ConfigData, OPTIONAL
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IN BOOLEAN State
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)
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{
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MSR_IA32_FEATURE_CONTROL_REGISTER *MsrRegister;
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//
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// The scope of LcmeOn bit in the MSR_IA32_MISC_ENABLE is core for below processor type, only program
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// MSR_IA32_MISC_ENABLE for thread 0 in each core.
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//
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if (IS_SILVERMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
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IS_GOLDMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
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IS_PENTIUM_4_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel)) {
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if (CpuInfo->ProcessorInfo.Location.Thread != 0) {
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return RETURN_SUCCESS;
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}
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}
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ASSERT (ConfigData != NULL);
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MsrRegister = (MSR_IA32_FEATURE_CONTROL_REGISTER *) ConfigData;
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if (MsrRegister[ProcessorNumber].Bits.Lock == 0) {
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CPU_REGISTER_TABLE_WRITE_FIELD (
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ProcessorNumber,
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Msr,
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MSR_IA32_FEATURE_CONTROL,
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MSR_IA32_FEATURE_CONTROL_REGISTER,
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Bits.LmceOn,
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(State) ? 1 : 0
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);
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}
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return RETURN_SUCCESS;
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}
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