[mirror_edk2.git] / UefiCpuPkg / Library / CpuCommonFeaturesLib / FeatureControl.c

/** @file\r
  Features in MSR_IA32_FEATURE_CONTROL register.\r
\r
  Copyright (c) 2017 - 2019, Intel Corporation. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "CpuCommonFeatures.h"\r
\r
/**\r
  Detects if VMX feature supported on current processor.\r
\r
  @param[in]  ProcessorNumber  The index of the CPU executing this function.\r
  @param[in]  CpuInfo          A pointer to the REGISTER_CPU_FEATURE_INFORMATION\r
                               structure for the CPU executing this function.\r
  @param[in]  ConfigData       A pointer to the configuration buffer returned\r
                               by CPU_FEATURE_GET_CONFIG_DATA.  NULL if\r
                               CPU_FEATURE_GET_CONFIG_DATA was not provided in\r
                               RegisterCpuFeature().\r
\r
  @retval TRUE     VMX feature is supported.\r
  @retval FALSE    VMX feature is not supported.\r
\r
  @note This service could be called by BSP/APs.\r
**/\r
BOOLEAN\r
EFIAPI\r
VmxSupport (\r
  IN UINTN                             ProcessorNumber,\r
  IN REGISTER_CPU_FEATURE_INFORMATION  *CpuInfo,\r
  IN VOID                              *ConfigData  OPTIONAL\r
  )\r
{\r
  return (CpuInfo->CpuIdVersionInfoEcx.Bits.VMX == 1);\r
}\r
\r
/**\r
  Initializes VMX feature to specific state.\r
\r
  @param[in]  ProcessorNumber  The index of the CPU executing this function.\r
  @param[in]  CpuInfo          A pointer to the REGISTER_CPU_FEATURE_INFORMATION\r
                               structure for the CPU executing this function.\r
  @param[in]  ConfigData       A pointer to the configuration buffer returned\r
                               by CPU_FEATURE_GET_CONFIG_DATA.  NULL if\r
                               CPU_FEATURE_GET_CONFIG_DATA was not provided in\r
                               RegisterCpuFeature().\r
  @param[in]  State            If TRUE, then the VMX feature must be enabled.\r
                               If FALSE, then the VMX feature must be disabled.\r
\r
  @retval RETURN_SUCCESS       VMX feature is initialized.\r
\r
  @note This service could be called by BSP only.\r
**/\r
RETURN_STATUS\r
EFIAPI\r
VmxInitialize (\r
  IN UINTN                             ProcessorNumber,\r
  IN REGISTER_CPU_FEATURE_INFORMATION  *CpuInfo,\r
  IN VOID                              *ConfigData   OPTIONAL,\r
  IN BOOLEAN                           State\r
  )\r
{\r
  //\r
  // The scope of EnableVmxOutsideSmx bit in the MSR_IA32_FEATURE_CONTROL is core for\r
  // below processor type, only program MSR_IA32_FEATURE_CONTROL for thread 0 in each\r
  // core.\r
  //\r
  if (IS_SILVERMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||\r
      IS_GOLDMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||\r
      IS_GOLDMONT_PLUS_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel)) {\r
    if (CpuInfo->ProcessorInfo.Location.Thread != 0) {\r
      return RETURN_SUCCESS;\r
    }\r
  }\r
\r
  CPU_REGISTER_TABLE_TEST_THEN_WRITE_FIELD (\r
    ProcessorNumber,\r
    Msr,\r
    MSR_IA32_FEATURE_CONTROL,\r
    MSR_IA32_FEATURE_CONTROL_REGISTER,\r
    Bits.EnableVmxOutsideSmx,\r
    (State) ? 1 : 0\r
    );\r
\r
  return RETURN_SUCCESS;\r
}\r
\r
/**\r
  Detects if Lock Feature Control Register feature supported on current processor.\r
\r
  @param[in]  ProcessorNumber  The index of the CPU executing this function.\r
  @param[in]  CpuInfo          A pointer to the REGISTER_CPU_FEATURE_INFORMATION\r
                               structure for the CPU executing this function.\r
  @param[in]  ConfigData       A pointer to the configuration buffer returned\r
                               by CPU_FEATURE_GET_CONFIG_DATA.  NULL if\r
                               CPU_FEATURE_GET_CONFIG_DATA was not provided in\r
                               RegisterCpuFeature().\r
\r
  @retval TRUE     Lock Feature Control Register feature is supported.\r
  @retval FALSE    Lock Feature Control Register feature is not supported.\r
\r
  @note This service could be called by BSP/APs.\r
**/\r
BOOLEAN\r
EFIAPI\r
LockFeatureControlRegisterSupport (\r
  IN UINTN                             ProcessorNumber,\r
  IN REGISTER_CPU_FEATURE_INFORMATION  *CpuInfo,\r
  IN VOID                              *ConfigData  OPTIONAL\r
  )\r
{\r
  return TRUE;\r
}\r
\r
/**\r
  Initializes Lock Feature Control Register feature to specific state.\r
\r
  @param[in]  ProcessorNumber  The index of the CPU executing this function.\r
  @param[in]  CpuInfo          A pointer to the REGISTER_CPU_FEATURE_INFORMATION\r
                               structure for the CPU executing this function.\r
  @param[in]  ConfigData       A pointer to the configuration buffer returned\r
                               by CPU_FEATURE_GET_CONFIG_DATA.  NULL if\r
                               CPU_FEATURE_GET_CONFIG_DATA was not provided in\r
                               RegisterCpuFeature().\r
  @param[in]  State            If TRUE, then the Lock Feature Control Register feature must be enabled.\r
                               If FALSE, then the Lock Feature Control Register feature must be disabled.\r
\r
  @retval RETURN_SUCCESS       Lock Feature Control Register feature is initialized.\r
\r
  @note This service could be called by BSP only.\r
**/\r
RETURN_STATUS\r
EFIAPI\r
LockFeatureControlRegisterInitialize (\r
  IN UINTN                             ProcessorNumber,\r
  IN REGISTER_CPU_FEATURE_INFORMATION  *CpuInfo,\r
  IN VOID                              *ConfigData   OPTIONAL,\r
  IN BOOLEAN                           State\r
  )\r
{\r
  //\r
  // The scope of Lock bit in the MSR_IA32_FEATURE_CONTROL is core for\r
  // below processor type, only program MSR_IA32_FEATURE_CONTROL for thread 0 in each\r
  // core.\r
  //\r
  if (IS_SILVERMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||\r
      IS_GOLDMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||\r
      IS_GOLDMONT_PLUS_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel)) {\r
    if (CpuInfo->ProcessorInfo.Location.Thread != 0) {\r
      return RETURN_SUCCESS;\r
    }\r
  }\r
\r
  CPU_REGISTER_TABLE_TEST_THEN_WRITE_FIELD (\r
    ProcessorNumber,\r
    Msr,\r
    MSR_IA32_FEATURE_CONTROL,\r
    MSR_IA32_FEATURE_CONTROL_REGISTER,\r
    Bits.Lock,\r
    1\r
    );\r
\r
  return RETURN_SUCCESS;\r
}\r
\r
/**\r
  Detects if SMX feature supported on current processor.\r
\r
  @param[in]  ProcessorNumber  The index of the CPU executing this function.\r
  @param[in]  CpuInfo          A pointer to the REGISTER_CPU_FEATURE_INFORMATION\r
                               structure for the CPU executing this function.\r
  @param[in]  ConfigData       A pointer to the configuration buffer returned\r
                               by CPU_FEATURE_GET_CONFIG_DATA.  NULL if\r
                               CPU_FEATURE_GET_CONFIG_DATA was not provided in\r
                               RegisterCpuFeature().\r
\r
  @retval TRUE     SMX feature is supported.\r
  @retval FALSE    SMX feature is not supported.\r
\r
  @note This service could be called by BSP/APs.\r
**/\r
BOOLEAN\r
EFIAPI\r
SmxSupport (\r
  IN UINTN                             ProcessorNumber,\r
  IN REGISTER_CPU_FEATURE_INFORMATION  *CpuInfo,\r
  IN VOID                              *ConfigData  OPTIONAL\r
  )\r
{\r
  return (CpuInfo->CpuIdVersionInfoEcx.Bits.SMX == 1);\r
}\r
\r
/**\r
  Initializes SMX feature to specific state.\r
\r
  @param[in]  ProcessorNumber  The index of the CPU executing this function.\r
  @param[in]  CpuInfo          A pointer to the REGISTER_CPU_FEATURE_INFORMATION\r
                               structure for the CPU executing this function.\r
  @param[in]  ConfigData       A pointer to the configuration buffer returned\r
                               by CPU_FEATURE_GET_CONFIG_DATA.  NULL if\r
                               CPU_FEATURE_GET_CONFIG_DATA was not provided in\r
                               RegisterCpuFeature().\r
  @param[in]  State            If TRUE, then SMX feature must be enabled.\r
                               If FALSE, then SMX feature must be disabled.\r
\r
  @retval RETURN_SUCCESS       SMX feature is initialized.\r
  @retval RETURN_UNSUPPORTED   VMX not initialized.\r
\r
  @note This service could be called by BSP only.\r
**/\r
RETURN_STATUS\r
EFIAPI\r
SmxInitialize (\r
  IN UINTN                             ProcessorNumber,\r
  IN REGISTER_CPU_FEATURE_INFORMATION  *CpuInfo,\r
  IN VOID                              *ConfigData   OPTIONAL,\r
  IN BOOLEAN                           State\r
  )\r
{\r
  RETURN_STATUS                        Status;\r
\r
  //\r
  // The scope of Lock bit in the MSR_IA32_FEATURE_CONTROL is core for\r
  // below processor type, only program MSR_IA32_FEATURE_CONTROL for thread 0 in each\r
  // core.\r
  //\r
  if (IS_GOLDMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||\r
      IS_GOLDMONT_PLUS_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel)) {\r
    if (CpuInfo->ProcessorInfo.Location.Thread != 0) {\r
      return RETURN_SUCCESS;\r
    }\r
  }\r
\r
  Status = RETURN_SUCCESS;\r
\r
  if (State && (!IsCpuFeatureInSetting (CPU_FEATURE_VMX))) {\r
    DEBUG ((DEBUG_WARN, "Warning :: Can't enable SMX feature when VMX feature not enabled, disable it.\n"));\r
    State = FALSE;\r
    Status = RETURN_UNSUPPORTED;\r
  }\r
\r
  CPU_REGISTER_TABLE_WRITE_FIELD (\r
    ProcessorNumber,\r
    ControlRegister,\r
    4,\r
    IA32_CR4,\r
    Bits.SMXE,\r
    (State) ? 1 : 0\r
  )\r
\r
  CPU_REGISTER_TABLE_TEST_THEN_WRITE_FIELD (\r
    ProcessorNumber,\r
    Msr,\r
    MSR_IA32_FEATURE_CONTROL,\r
    MSR_IA32_FEATURE_CONTROL_REGISTER,\r
    Bits.SenterLocalFunctionEnables,\r
    (State) ? 0x7F : 0\r
    );\r
\r
  CPU_REGISTER_TABLE_TEST_THEN_WRITE_FIELD (\r
    ProcessorNumber,\r
    Msr,\r
    MSR_IA32_FEATURE_CONTROL,\r
    MSR_IA32_FEATURE_CONTROL_REGISTER,\r
    Bits.SenterGlobalEnable,\r
    (State) ? 1 : 0\r
    );\r
\r
  CPU_REGISTER_TABLE_TEST_THEN_WRITE_FIELD (\r
    ProcessorNumber,\r
    Msr,\r
    MSR_IA32_FEATURE_CONTROL,\r
    MSR_IA32_FEATURE_CONTROL_REGISTER,\r
    Bits.EnableVmxInsideSmx,\r
    (State) ? 1 : 0\r
    );\r
\r
  return Status;\r
}\r
Commit	Line	Data
80c4b236 JF	1	/** @file\r
	2	Features in MSR_IA32_FEATURE_CONTROL register.\r
	3	\r
9c90d39b	4	Copyright (c) 2017 - 2019, Intel Corporation. All rights reserved.<BR>\r
0acd8697	5	SPDX-License-Identifier: BSD-2-Clause-Patent\r
80c4b236 JF	6	\r
	7	**/\r
	8	\r
	9	#include "CpuCommonFeatures.h"\r
	10	\r
80c4b236 JF	11	/**\r
	12	Detects if VMX feature supported on current processor.\r
	13	\r
	14	@param[in] ProcessorNumber The index of the CPU executing this function.\r
	15	@param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION\r
	16	structure for the CPU executing this function.\r
	17	@param[in] ConfigData A pointer to the configuration buffer returned\r
	18	by CPU_FEATURE_GET_CONFIG_DATA. NULL if\r
	19	CPU_FEATURE_GET_CONFIG_DATA was not provided in\r
	20	RegisterCpuFeature().\r
	21	\r
	22	@retval TRUE VMX feature is supported.\r
	23	@retval FALSE VMX feature is not supported.\r
	24	\r
	25	@note This service could be called by BSP/APs.\r
	26	**/\r
	27	BOOLEAN\r
	28	EFIAPI\r
	29	VmxSupport (\r
	30	IN UINTN ProcessorNumber,\r
	31	IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,\r
	32	IN VOID *ConfigData OPTIONAL\r
	33	)\r
	34	{\r
80c4b236 JF	35	return (CpuInfo->CpuIdVersionInfoEcx.Bits.VMX == 1);\r
	36	}\r
	37	\r
	38	/**\r
b1fe2029	39	Initializes VMX feature to specific state.\r
80c4b236 JF	40	\r
	41	@param[in] ProcessorNumber The index of the CPU executing this function.\r
	42	@param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION\r
	43	structure for the CPU executing this function.\r
	44	@param[in] ConfigData A pointer to the configuration buffer returned\r
	45	by CPU_FEATURE_GET_CONFIG_DATA. NULL if\r
	46	CPU_FEATURE_GET_CONFIG_DATA was not provided in\r
	47	RegisterCpuFeature().\r
b1fe2029 ED	48	@param[in] State If TRUE, then the VMX feature must be enabled.\r
b1fe2029 ED	49	If FALSE, then the VMX feature must be disabled.\r
80c4b236	50	\r
b1fe2029	51	@retval RETURN_SUCCESS VMX feature is initialized.\r
80c4b236 JF	52	\r
	53	@note This service could be called by BSP only.\r
	54	**/\r
	55	RETURN_STATUS\r
	56	EFIAPI\r
b1fe2029	57	VmxInitialize (\r
80c4b236 JF	58	IN UINTN ProcessorNumber,\r
80c4b236 JF	59	IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,\r
4ec586b9	60	IN VOID *ConfigData OPTIONAL,\r
80c4b236 JF	61	IN BOOLEAN State\r
	62	)\r
	63	{\r
d28daadd ED	64	//\r
	65	// The scope of EnableVmxOutsideSmx bit in the MSR_IA32_FEATURE_CONTROL is core for\r
	66	// below processor type, only program MSR_IA32_FEATURE_CONTROL for thread 0 in each\r
	67	// core.\r
	68	//\r
	69	if (IS_SILVERMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) \|\|\r
	70	IS_GOLDMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) \|\|\r
	71	IS_GOLDMONT_PLUS_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel)) {\r
	72	if (CpuInfo->ProcessorInfo.Location.Thread != 0) {\r
	73	return RETURN_SUCCESS;\r
	74	}\r
	75	}\r
	76	\r
9c90d39b ED	77	CPU_REGISTER_TABLE_TEST_THEN_WRITE_FIELD (\r
	78	ProcessorNumber,\r
	79	Msr,\r
	80	MSR_IA32_FEATURE_CONTROL,\r
	81	MSR_IA32_FEATURE_CONTROL_REGISTER,\r
	82	Bits.EnableVmxOutsideSmx,\r
	83	(State) ? 1 : 0\r
	84	);\r
	85	\r
80c4b236 JF	86	return RETURN_SUCCESS;\r
	87	}\r
	88	\r
	89	/**\r
	90	Detects if Lock Feature Control Register feature supported on current processor.\r
	91	\r
	92	@param[in] ProcessorNumber The index of the CPU executing this function.\r
	93	@param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION\r
	94	structure for the CPU executing this function.\r
	95	@param[in] ConfigData A pointer to the configuration buffer returned\r
	96	by CPU_FEATURE_GET_CONFIG_DATA. NULL if\r
	97	CPU_FEATURE_GET_CONFIG_DATA was not provided in\r
	98	RegisterCpuFeature().\r
	99	\r
	100	@retval TRUE Lock Feature Control Register feature is supported.\r
	101	@retval FALSE Lock Feature Control Register feature is not supported.\r
	102	\r
	103	@note This service could be called by BSP/APs.\r
	104	**/\r
	105	BOOLEAN\r
	106	EFIAPI\r
	107	LockFeatureControlRegisterSupport (\r
	108	IN UINTN ProcessorNumber,\r
	109	IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,\r
	110	IN VOID *ConfigData OPTIONAL\r
	111	)\r
	112	{\r
80c4b236 JF	113	return TRUE;\r
	114	}\r
	115	\r
	116	/**\r
	117	Initializes Lock Feature Control Register feature to specific state.\r
	118	\r
	119	@param[in] ProcessorNumber The index of the CPU executing this function.\r
	120	@param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION\r
	121	structure for the CPU executing this function.\r
	122	@param[in] ConfigData A pointer to the configuration buffer returned\r
	123	by CPU_FEATURE_GET_CONFIG_DATA. NULL if\r
	124	CPU_FEATURE_GET_CONFIG_DATA was not provided in\r
	125	RegisterCpuFeature().\r
	126	@param[in] State If TRUE, then the Lock Feature Control Register feature must be enabled.\r
	127	If FALSE, then the Lock Feature Control Register feature must be disabled.\r
	128	\r
	129	@retval RETURN_SUCCESS Lock Feature Control Register feature is initialized.\r
	130	\r
	131	@note This service could be called by BSP only.\r
	132	**/\r
	133	RETURN_STATUS\r
	134	EFIAPI\r
	135	LockFeatureControlRegisterInitialize (\r
	136	IN UINTN ProcessorNumber,\r
	137	IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,\r
4ec586b9	138	IN VOID *ConfigData OPTIONAL,\r
80c4b236 JF	139	IN BOOLEAN State\r
	140	)\r
	141	{\r
d28daadd ED	142	//\r
	143	// The scope of Lock bit in the MSR_IA32_FEATURE_CONTROL is core for\r
	144	// below processor type, only program MSR_IA32_FEATURE_CONTROL for thread 0 in each\r
	145	// core.\r
	146	//\r
	147	if (IS_SILVERMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) \|\|\r
	148	IS_GOLDMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) \|\|\r
	149	IS_GOLDMONT_PLUS_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel)) {\r
	150	if (CpuInfo->ProcessorInfo.Location.Thread != 0) {\r
	151	return RETURN_SUCCESS;\r
	152	}\r
	153	}\r
	154	\r
9c90d39b ED	155	CPU_REGISTER_TABLE_TEST_THEN_WRITE_FIELD (\r
	156	ProcessorNumber,\r
	157	Msr,\r
	158	MSR_IA32_FEATURE_CONTROL,\r
	159	MSR_IA32_FEATURE_CONTROL_REGISTER,\r
	160	Bits.Lock,\r
	161	1\r
	162	);\r
	163	\r
80c4b236 JF	164	return RETURN_SUCCESS;\r
	165	}\r
	166	\r
	167	/**\r
	168	Detects if SMX feature supported on current processor.\r
	169	\r
	170	@param[in] ProcessorNumber The index of the CPU executing this function.\r
	171	@param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION\r
	172	structure for the CPU executing this function.\r
	173	@param[in] ConfigData A pointer to the configuration buffer returned\r
	174	by CPU_FEATURE_GET_CONFIG_DATA. NULL if\r
	175	CPU_FEATURE_GET_CONFIG_DATA was not provided in\r
	176	RegisterCpuFeature().\r
	177	\r
	178	@retval TRUE SMX feature is supported.\r
	179	@retval FALSE SMX feature is not supported.\r
	180	\r
	181	@note This service could be called by BSP/APs.\r
	182	**/\r
	183	BOOLEAN\r
	184	EFIAPI\r
	185	SmxSupport (\r
	186	IN UINTN ProcessorNumber,\r
	187	IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,\r
	188	IN VOID *ConfigData OPTIONAL\r
	189	)\r
	190	{\r
80c4b236 JF	191	return (CpuInfo->CpuIdVersionInfoEcx.Bits.SMX == 1);\r
	192	}\r
	193	\r
	194	/**\r
b1fe2029	195	Initializes SMX feature to specific state.\r
80c4b236 JF	196	\r
	197	@param[in] ProcessorNumber The index of the CPU executing this function.\r
	198	@param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION\r
	199	structure for the CPU executing this function.\r
	200	@param[in] ConfigData A pointer to the configuration buffer returned\r
	201	by CPU_FEATURE_GET_CONFIG_DATA. NULL if\r
	202	CPU_FEATURE_GET_CONFIG_DATA was not provided in\r
	203	RegisterCpuFeature().\r
b1fe2029 ED	204	@param[in] State If TRUE, then SMX feature must be enabled.\r
b1fe2029 ED	205	If FALSE, then SMX feature must be disabled.\r
80c4b236	206	\r
b1fe2029 ED	207	@retval RETURN_SUCCESS SMX feature is initialized.\r
b1fe2029 ED	208	@retval RETURN_UNSUPPORTED VMX not initialized.\r
80c4b236 JF	209	\r
	210	@note This service could be called by BSP only.\r
	211	**/\r
	212	RETURN_STATUS\r
	213	EFIAPI\r
b1fe2029	214	SmxInitialize (\r
80c4b236 JF	215	IN UINTN ProcessorNumber,\r
80c4b236 JF	216	IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,\r
4ec586b9	217	IN VOID *ConfigData OPTIONAL,\r
80c4b236 JF	218	IN BOOLEAN State\r
	219	)\r
	220	{\r
b1fe2029 ED	221	RETURN_STATUS Status;\r
b1fe2029 ED	222	\r
d28daadd ED	223	//\r
	224	// The scope of Lock bit in the MSR_IA32_FEATURE_CONTROL is core for\r
	225	// below processor type, only program MSR_IA32_FEATURE_CONTROL for thread 0 in each\r
	226	// core.\r
	227	//\r
	228	if (IS_GOLDMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) \|\|\r
	229	IS_GOLDMONT_PLUS_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel)) {\r
	230	if (CpuInfo->ProcessorInfo.Location.Thread != 0) {\r
	231	return RETURN_SUCCESS;\r
	232	}\r
	233	}\r
	234	\r
b1fe2029 ED	235	Status = RETURN_SUCCESS;\r
	236	\r
	237	if (State && (!IsCpuFeatureInSetting (CPU_FEATURE_VMX))) {\r
	238	DEBUG ((DEBUG_WARN, "Warning :: Can't enable SMX feature when VMX feature not enabled, disable it.\n"));\r
	239	State = FALSE;\r
	240	Status = RETURN_UNSUPPORTED;\r
	241	}\r
80c4b236	242	\r
1f0d8096 JV	243	CPU_REGISTER_TABLE_WRITE_FIELD (\r
	244	ProcessorNumber,\r
	245	ControlRegister,\r
	246	4,\r
	247	IA32_CR4,\r
	248	Bits.SMXE,\r
	249	(State) ? 1 : 0\r
	250	)\r
	251	\r
9c90d39b ED	252	CPU_REGISTER_TABLE_TEST_THEN_WRITE_FIELD (\r
	253	ProcessorNumber,\r
	254	Msr,\r
	255	MSR_IA32_FEATURE_CONTROL,\r
	256	MSR_IA32_FEATURE_CONTROL_REGISTER,\r
	257	Bits.SenterLocalFunctionEnables,\r
	258	(State) ? 0x7F : 0\r
	259	);\r
	260	\r
	261	CPU_REGISTER_TABLE_TEST_THEN_WRITE_FIELD (\r
	262	ProcessorNumber,\r
	263	Msr,\r
	264	MSR_IA32_FEATURE_CONTROL,\r
	265	MSR_IA32_FEATURE_CONTROL_REGISTER,\r
	266	Bits.SenterGlobalEnable,\r
	267	(State) ? 1 : 0\r
	268	);\r
	269	\r
	270	CPU_REGISTER_TABLE_TEST_THEN_WRITE_FIELD (\r
	271	ProcessorNumber,\r
	272	Msr,\r
	273	MSR_IA32_FEATURE_CONTROL,\r
	274	MSR_IA32_FEATURE_CONTROL_REGISTER,\r
	275	Bits.EnableVmxInsideSmx,\r
	276	(State) ? 1 : 0\r
	277	);\r
	278	\r
b1fe2029	279	return Status;\r
80c4b236	280	}\r