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| author | Guo Mang <mang.guo@intel.com> | 2017-04-27 11:22:26 +0800 |
|---|---|---|
| committer | Guo Mang <mang.guo@intel.com> | 2017-04-27 11:22:26 +0800 |
| commit | 38c2cbb9354d7f58e48f9f649f23eb9bd0d3cfca (patch) | |
| tree | 1d4540cd9c19c47d10a161184c8f1a12f8ffc455 /UefiCpuPkg/Library/CpuCommonFeaturesLib/LimitCpuIdMaxval.c | |
| parent | c6ff7c547bfc71da9d5e71a73984b9d3a4ea0809 (diff) | |
| download | edk2-platforms-38c2cbb9354d7f58e48f9f649f23eb9bd0d3cfca.tar.xz | |
UefiCpuPkg: Move to new location
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'UefiCpuPkg/Library/CpuCommonFeaturesLib/LimitCpuIdMaxval.c')
| -rw-r--r-- | UefiCpuPkg/Library/CpuCommonFeaturesLib/LimitCpuIdMaxval.c | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/UefiCpuPkg/Library/CpuCommonFeaturesLib/LimitCpuIdMaxval.c b/UefiCpuPkg/Library/CpuCommonFeaturesLib/LimitCpuIdMaxval.c deleted file mode 100644 index 40cc9d5fe0..0000000000 --- a/UefiCpuPkg/Library/CpuCommonFeaturesLib/LimitCpuIdMaxval.c +++ /dev/null @@ -1,82 +0,0 @@ -/** @file
- LimitCpuidMaxval Feature.
-
- Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
- 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.
-
-**/
-
-#include "CpuCommonFeatures.h"
-
-/**
- Detects if LimitCpuidMaxval 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 LimitCpuidMaxval feature is supported.
- @retval FALSE LimitCpuidMaxval feature is not supported.
-
- @note This service could be called by BSP/APs.
-**/
-BOOLEAN
-EFIAPI
-LimitCpuidMaxvalSupport (
- IN UINTN ProcessorNumber,
- IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,
- IN VOID *ConfigData OPTIONAL
- )
-{
- UINT32 Eax;
-
- AsmCpuid (CPUID_SIGNATURE, &Eax, NULL, NULL, NULL);
- return (Eax > 3);
-}
-
-/**
- Initializes LimitCpuidMaxval feature to specific state.
-
- @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 LimitCpuidMaxval feature must be enabled.
- If FALSE, then the LimitCpuidMaxval feature must be disabled.
-
- @retval RETURN_SUCCESS LimitCpuidMaxval feature is initialized.
-
- @note This service could be called by BSP only.
-**/
-RETURN_STATUS
-EFIAPI
-LimitCpuidMaxvalInitialize (
- IN UINTN ProcessorNumber,
- IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,
- IN VOID *ConfigData, OPTIONAL
- IN BOOLEAN State
- )
-{
- CPU_REGISTER_TABLE_WRITE_FIELD (
- ProcessorNumber,
- Msr,
- MSR_IA32_MISC_ENABLE,
- MSR_IA32_MISC_ENABLE_REGISTER,
- Bits.LimitCpuidMaxval,
- (State) ? 1 : 0
- );
- return RETURN_SUCCESS;
-}
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