2 Agent Module to load other modules to deploy SMM Entry Vector for X86 CPU.
4 Copyright (c) 2009 - 2015, Intel Corporation. All rights reserved.<BR>
5 This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
15 #ifndef _CPU_PISMMCPUDXESMM_H_
16 #define _CPU_PISMMCPUDXESMM_H_
20 #include <Protocol/MpService.h>
21 #include <Protocol/SmmConfiguration.h>
22 #include <Protocol/SmmCpu.h>
23 #include <Protocol/SmmAccess2.h>
24 #include <Protocol/SmmReadyToLock.h>
25 #include <Protocol/SmmCpuService.h>
27 #include <Guid/AcpiS3Context.h>
29 #include <Library/BaseLib.h>
30 #include <Library/IoLib.h>
31 #include <Library/TimerLib.h>
32 #include <Library/SynchronizationLib.h>
33 #include <Library/DebugLib.h>
34 #include <Library/BaseMemoryLib.h>
35 #include <Library/PcdLib.h>
36 #include <Library/CacheMaintenanceLib.h>
37 #include <Library/MtrrLib.h>
38 #include <Library/SmmCpuPlatformHookLib.h>
39 #include <Library/SmmServicesTableLib.h>
40 #include <Library/MemoryAllocationLib.h>
41 #include <Library/UefiBootServicesTableLib.h>
42 #include <Library/UefiRuntimeServicesTableLib.h>
43 #include <Library/DebugAgentLib.h>
44 #include <Library/HobLib.h>
45 #include <Library/LocalApicLib.h>
46 #include <Library/UefiCpuLib.h>
47 #include <Library/CpuExceptionHandlerLib.h>
48 #include <Library/ReportStatusCodeLib.h>
49 #include <Library/SmmCpuFeaturesLib.h>
50 #include <Library/PeCoffGetEntryPointLib.h>
52 #include <AcpiCpuData.h>
53 #include <CpuHotPlugData.h>
55 #include <Register/Cpuid.h>
57 #include "CpuService.h"
58 #include "SmmProfile.h"
61 // MSRs required for configuration of SMM Code Access Check
63 #define EFI_MSR_SMM_MCA_CAP 0x17D
64 #define SMM_CODE_ACCESS_CHK_BIT BIT58
66 #define SMM_FEATURE_CONTROL_LOCK_BIT BIT0
67 #define SMM_CODE_CHK_EN_BIT BIT2
72 #define IA32_PG_P BIT0
73 #define IA32_PG_RW BIT1
74 #define IA32_PG_WT BIT3
75 #define IA32_PG_CD BIT4
76 #define IA32_PG_A BIT5
77 #define IA32_PG_PS BIT7
78 #define IA32_PG_PAT_2M BIT12
79 #define IA32_PG_PAT_4K IA32_PG_PS
80 #define IA32_PG_PMNT BIT62
81 #define IA32_PG_NX BIT63
84 // Size of Task-State Segment defined in IA32 Manual
87 #define TSS_X64_IST1_OFFSET 36
88 #define TSS_IA32_CR3_OFFSET 28
89 #define TSS_IA32_ESP_OFFSET 56
94 #define PROTECT_MODE_CODE_SEGMENT 0x08
95 #define LONG_MODE_CODE_SEGMENT 0x38
98 // The size 0x20 must be bigger than
99 // the size of template code of SmmInit. Currently,
100 // the size of SmmInit requires the 0x16 Bytes buffer
103 #define BACK_BUF_SIZE 0x20
105 #define EXCEPTION_VECTOR_NUMBER 0x20
107 #define INVALID_APIC_ID 0xFFFFFFFFFFFFFFFFULL
109 typedef UINT32 SMM_CPU_ARRIVAL_EXCEPTIONS
;
110 #define ARRIVAL_EXCEPTION_BLOCKED 0x1
111 #define ARRIVAL_EXCEPTION_DELAYED 0x2
112 #define ARRIVAL_EXCEPTION_SMI_DISABLED 0x4
115 // Private structure for the SMM CPU module that is stored in DXE Runtime memory
116 // Contains the SMM Configuration Protocols that is produced.
117 // Contains a mix of DXE and SMM contents. All the fields must be used properly.
119 #define SMM_CPU_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('s', 'c', 'p', 'u')
124 EFI_HANDLE SmmCpuHandle
;
126 EFI_PROCESSOR_INFORMATION
*ProcessorInfo
;
127 SMM_CPU_OPERATION
*Operation
;
128 UINTN
*CpuSaveStateSize
;
131 EFI_SMM_RESERVED_SMRAM_REGION SmmReservedSmramRegion
[1];
132 EFI_SMM_ENTRY_CONTEXT SmmCoreEntryContext
;
133 EFI_SMM_ENTRY_POINT SmmCoreEntry
;
135 EFI_SMM_CONFIGURATION_PROTOCOL SmmConfiguration
;
136 } SMM_CPU_PRIVATE_DATA
;
138 extern SMM_CPU_PRIVATE_DATA
*gSmmCpuPrivate
;
139 extern CPU_HOT_PLUG_DATA mCpuHotPlugData
;
140 extern UINTN mMaxNumberOfCpus
;
141 extern UINTN mNumberOfCpus
;
142 extern BOOLEAN mRestoreSmmConfigurationInS3
;
143 extern EFI_SMM_CPU_PROTOCOL mSmmCpu
;
146 /// The mode of the CPU at the time an SMI occurs
148 extern UINT8 mSmmSaveStateRegisterLma
;
152 // SMM CPU Protocol function prototypes.
156 Read information from the CPU save state.
158 @param This EFI_SMM_CPU_PROTOCOL instance
159 @param Width The number of bytes to read from the CPU save state.
160 @param Register Specifies the CPU register to read form the save state.
161 @param CpuIndex Specifies the zero-based index of the CPU save state
162 @param Buffer Upon return, this holds the CPU register value read from the save state.
164 @retval EFI_SUCCESS The register was read from Save State
165 @retval EFI_NOT_FOUND The register is not defined for the Save State of Processor
166 @retval EFI_INVALID_PARAMTER This or Buffer is NULL.
172 IN CONST EFI_SMM_CPU_PROTOCOL
*This
,
174 IN EFI_SMM_SAVE_STATE_REGISTER Register
,
180 Write data to the CPU save state.
182 @param This EFI_SMM_CPU_PROTOCOL instance
183 @param Width The number of bytes to read from the CPU save state.
184 @param Register Specifies the CPU register to write to the save state.
185 @param CpuIndex Specifies the zero-based index of the CPU save state
186 @param Buffer Upon entry, this holds the new CPU register value.
188 @retval EFI_SUCCESS The register was written from Save State
189 @retval EFI_NOT_FOUND The register is not defined for the Save State of Processor
190 @retval EFI_INVALID_PARAMTER ProcessorIndex or Width is not correct
196 IN CONST EFI_SMM_CPU_PROTOCOL
*This
,
198 IN EFI_SMM_SAVE_STATE_REGISTER Register
,
200 IN CONST VOID
*Buffer
204 Read a CPU Save State register on the target processor.
206 This function abstracts the differences that whether the CPU Save State register is in the
207 IA32 CPU Save State Map or X64 CPU Save State Map.
209 This function supports reading a CPU Save State register in SMBase relocation handler.
211 @param[in] CpuIndex Specifies the zero-based index of the CPU save state.
212 @param[in] RegisterIndex Index into mSmmCpuWidthOffset[] look up table.
213 @param[in] Width The number of bytes to read from the CPU save state.
214 @param[out] Buffer Upon return, this holds the CPU register value read from the save state.
216 @retval EFI_SUCCESS The register was read from Save State.
217 @retval EFI_NOT_FOUND The register is not defined for the Save State of Processor.
218 @retval EFI_INVALID_PARAMTER This or Buffer is NULL.
223 ReadSaveStateRegister (
225 IN EFI_SMM_SAVE_STATE_REGISTER Register
,
231 Write value to a CPU Save State register on the target processor.
233 This function abstracts the differences that whether the CPU Save State register is in the
234 IA32 CPU Save State Map or X64 CPU Save State Map.
236 This function supports writing a CPU Save State register in SMBase relocation handler.
238 @param[in] CpuIndex Specifies the zero-based index of the CPU save state.
239 @param[in] RegisterIndex Index into mSmmCpuWidthOffset[] look up table.
240 @param[in] Width The number of bytes to read from the CPU save state.
241 @param[in] Buffer Upon entry, this holds the new CPU register value.
243 @retval EFI_SUCCESS The register was written to Save State.
244 @retval EFI_NOT_FOUND The register is not defined for the Save State of Processor.
245 @retval EFI_INVALID_PARAMTER ProcessorIndex or Width is not correct.
250 WriteSaveStateRegister (
252 IN EFI_SMM_SAVE_STATE_REGISTER Register
,
254 IN CONST VOID
*Buffer
266 extern IA32_FAR_ADDRESS gSmmJmpAddr
;
268 extern CONST UINT8 gcSmmInitTemplate
[];
269 extern CONST UINT16 gcSmmInitSize
;
270 extern UINT32 gSmmCr0
;
271 extern UINT32 gSmmCr3
;
272 extern UINT32 gSmmCr4
;
273 extern UINTN gSmmInitStack
;
276 Semaphore operation for all processor relocate SMMBase.
280 SmmRelocationSemaphoreComplete (
285 /// The type of SMM CPU Information
289 volatile EFI_AP_PROCEDURE Procedure
;
290 volatile VOID
*Parameter
;
292 volatile BOOLEAN Present
;
293 } SMM_CPU_DATA_BLOCK
;
296 SmmCpuSyncModeTradition
,
297 SmmCpuSyncModeRelaxedAp
,
303 // Pointer to an array. The array should be located immediately after this structure
304 // so that UC cache-ability can be set together.
306 SMM_CPU_DATA_BLOCK
*CpuData
;
307 volatile UINT32 Counter
;
308 volatile UINT32 BspIndex
;
309 volatile BOOLEAN InsideSmm
;
310 volatile BOOLEAN AllCpusInSync
;
311 volatile SMM_CPU_SYNC_MODE EffectiveSyncMode
;
312 volatile BOOLEAN SwitchBsp
;
313 volatile BOOLEAN
*CandidateBsp
;
314 } SMM_DISPATCHER_MP_SYNC_DATA
;
321 #define SMM_PSD_OFFSET 0xfb00
324 UINT64 Signature
; // Offset 0x00
325 UINT16 Reserved1
; // Offset 0x08
326 UINT16 Reserved2
; // Offset 0x0A
327 UINT16 Reserved3
; // Offset 0x0C
328 UINT16 SmmCs
; // Offset 0x0E
329 UINT16 SmmDs
; // Offset 0x10
330 UINT16 SmmSs
; // Offset 0x12
331 UINT16 SmmOtherSegment
; // Offset 0x14
332 UINT16 Reserved4
; // Offset 0x16
333 UINT64 Reserved5
; // Offset 0x18
334 UINT64 Reserved6
; // Offset 0x20
335 UINT64 Reserved7
; // Offset 0x28
336 UINT64 SmmGdtPtr
; // Offset 0x30
337 UINT32 SmmGdtSize
; // Offset 0x38
338 UINT32 Reserved8
; // Offset 0x3C
339 UINT64 Reserved9
; // Offset 0x40
340 UINT64 Reserved10
; // Offset 0x48
341 UINT16 Reserved11
; // Offset 0x50
342 UINT16 Reserved12
; // Offset 0x52
343 UINT32 Reserved13
; // Offset 0x54
344 UINT64 MtrrBaseMaskPtr
; // Offset 0x58
345 } PROCESSOR_SMM_DESCRIPTOR
;
347 extern IA32_DESCRIPTOR gcSmiGdtr
;
348 extern IA32_DESCRIPTOR gcSmiIdtr
;
349 extern VOID
*gcSmiIdtrPtr
;
350 extern CONST PROCESSOR_SMM_DESCRIPTOR gcPsd
;
351 extern UINT64 gPhyMask
;
352 extern ACPI_CPU_DATA mAcpiCpuData
;
353 extern SMM_DISPATCHER_MP_SYNC_DATA
*mSmmMpSyncData
;
354 extern VOID
*mGdtForAp
;
355 extern VOID
*mIdtForAp
;
356 extern VOID
*mMachineCheckHandlerForAp
;
357 extern UINTN mSmmStackArrayBase
;
358 extern UINTN mSmmStackArrayEnd
;
359 extern UINTN mSmmStackSize
;
360 extern EFI_SMM_CPU_SERVICE_PROTOCOL mSmmCpuService
;
361 extern IA32_DESCRIPTOR gcSmiInitGdtr
;
364 Create 4G PageTable in SMRAM.
366 @param ExtraPages Additional page numbers besides for 4G memory
367 @return PageTable Address
377 Initialize global data for MP synchronization.
379 @param Stacks Base address of SMI stack buffer for all processors.
380 @param StackSize Stack size for each processor in SMM.
384 InitializeMpServiceData (
390 Initialize Timer for SMM AP Sync.
399 Start Timer for SMM AP Sync.
409 Check if the SMM AP Sync timer is timeout.
411 @param Timer The start timer from the begin.
421 Initialize IDT for SMM Stack Guard.
426 InitializeIDTSmmStackGuard (
431 Initialize Gdt for all processors.
433 @param[in] Cr3 CR3 value.
434 @param[out] GdtStepSize The step size for GDT table.
436 @return GdtBase for processor 0.
437 GdtBase for processor X is: GdtBase + (GdtStepSize * X)
442 OUT UINTN
*GdtStepSize
447 Register the SMM Foundation entry point.
449 @param This Pointer to EFI_SMM_CONFIGURATION_PROTOCOL instance
450 @param SmmEntryPoint SMM Foundation EntryPoint
452 @retval EFI_SUCCESS Successfully to register SMM foundation entry point
458 IN CONST EFI_SMM_CONFIGURATION_PROTOCOL
*This
,
459 IN EFI_SMM_ENTRY_POINT SmmEntryPoint
463 Create PageTable for SMM use.
465 @return PageTable Address
474 Schedule a procedure to run on the specified CPU.
476 @param Procedure The address of the procedure to run
477 @param CpuIndex Target CPU number
478 @param ProcArguments The parameter to pass to the procedure
480 @retval EFI_INVALID_PARAMETER CpuNumber not valid
481 @retval EFI_INVALID_PARAMETER CpuNumber specifying BSP
482 @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber did not enter SMM
483 @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber is busy
484 @retval EFI_SUCCESS - The procedure has been successfully scheduled
490 IN EFI_AP_PROCEDURE Procedure
,
492 IN OUT VOID
*ProcArguments OPTIONAL
496 Schedule a procedure to run on the specified CPU in a blocking fashion.
498 @param Procedure The address of the procedure to run
499 @param CpuIndex Target CPU Index
500 @param ProcArguments The parameter to pass to the procedure
502 @retval EFI_INVALID_PARAMETER CpuNumber not valid
503 @retval EFI_INVALID_PARAMETER CpuNumber specifying BSP
504 @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber did not enter SMM
505 @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber is busy
506 @retval EFI_SUCCESS The procedure has been successfully scheduled
511 SmmBlockingStartupThisAp (
512 IN EFI_AP_PROCEDURE Procedure
,
514 IN OUT VOID
*ProcArguments OPTIONAL
518 Initialize MP synchronization data.
523 InitializeMpSyncData (
529 Find out SMRAM information including SMRR base and SMRR size.
531 @param SmrrBase SMRR base
532 @param SmrrSize SMRR size
537 OUT UINT32
*SmrrBase
,
542 The function is invoked before SMBASE relocation in S3 path to restores CPU status.
544 The function is invoked before SMBASE relocation in S3 path. It does first time microcode load
545 and restores MTRRs for both BSP and APs.
554 The function is invoked after SMBASE relocation in S3 path to restores CPU status.
556 The function is invoked after SMBASE relocation in S3 path. It restores configuration according to
557 data saved by normal boot path for both BSP and APs.
566 Page Fault handler for SMM use.
568 @param InterruptType Defines the type of interrupt or exception that
569 occurred on the processor.This parameter is processor architecture specific.
570 @param SystemContext A pointer to the processor context when
571 the interrupt occurred on the processor.
576 IN EFI_EXCEPTION_TYPE InterruptType
,
577 IN EFI_SYSTEM_CONTEXT SystemContext
581 Perform the remaining tasks.
585 PerformRemainingTasks (
590 Initialize MSR spin lock by MSR index.
592 @param MsrIndex MSR index value.
596 InitMsrSpinLockByIndex (
601 Hook return address of SMM Save State so that semaphore code
602 can be executed immediately after AP exits SMM to indicate to
603 the BSP that an AP has exited SMM after SMBASE relocation.
605 @param[in] CpuIndex The processor index.
606 @param[in] RebasedFlag A pointer to a flag that is set to TRUE
607 immediately after AP exits SMM.
613 IN
volatile BOOLEAN
*RebasedFlag
617 Configure SMM Code Access Check feature for all processors.
618 SMM Feature Control MSR will be locked after configuration.
621 ConfigSmmCodeAccessCheck (
626 Hook the code executed immediately after an RSM instruction on the currently
627 executing CPU. The mode of code executed immediately after RSM must be
628 detected, and the appropriate hook must be selected. Always clear the auto
629 HALT restart flag if it is set.
631 @param[in] CpuIndex The processor index for the currently
633 @param[in] CpuState Pointer to SMRAM Save State Map for the
634 currently executing CPU.
635 @param[in] NewInstructionPointer32 Instruction pointer to use if resuming to
636 32-bit mode from 64-bit SMM.
637 @param[in] NewInstructionPointer Instruction pointer to use if resuming to
640 @retval The value of the original instruction pointer before it was hooked.
647 SMRAM_SAVE_STATE_MAP
*CpuState
,
648 UINT64 NewInstructionPointer32
,
649 UINT64 NewInstructionPointer
653 Get the size of the SMI Handler in bytes.
655 @retval The size, in bytes, of the SMI Handler.
665 Install the SMI handler for the CPU specified by CpuIndex. This function
666 is called by the CPU that was elected as monarch during System Management
669 @param[in] CpuIndex The index of the CPU to install the custom SMI handler.
670 The value must be between 0 and the NumberOfCpus field
671 in the System Management System Table (SMST).
672 @param[in] SmBase The SMBASE address for the CPU specified by CpuIndex.
673 @param[in] SmiStack The stack to use when an SMI is processed by the
674 the CPU specified by CpuIndex.
675 @param[in] StackSize The size, in bytes, if the stack used when an SMI is
676 processed by the CPU specified by CpuIndex.
677 @param[in] GdtBase The base address of the GDT to use when an SMI is
678 processed by the CPU specified by CpuIndex.
679 @param[in] GdtSize The size, in bytes, of the GDT used when an SMI is
680 processed by the CPU specified by CpuIndex.
681 @param[in] IdtBase The base address of the IDT to use when an SMI is
682 processed by the CPU specified by CpuIndex.
683 @param[in] IdtSize The size, in bytes, of the IDT used when an SMI is
684 processed by the CPU specified by CpuIndex.
685 @param[in] Cr3 The base address of the page tables to use when an SMI
686 is processed by the CPU specified by CpuIndex.
703 Search module name by input IP address and output it.
705 @param CallerIpAddress Caller instruction pointer.
710 IN UINTN CallerIpAddress