2 Save the S3 data to S3 boot script.
4 Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
6 This program and the accompanying materials
7 are licensed and made available under the terms and conditions
8 of the BSD License which accompanies this distribution. The
9 full text of the license may be found at
10 http://opensource.org/licenses/bsd-license.php
12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
16 #include "InternalBootScriptLib.h"
22 +------------------------------+<-- PcdS3BootScriptTablePrivateDataPtr
23 | SCRIPT_TABLE_PRIVATE_DATA |
28 +------------------------------+ | |
30 +------------------------------+<-- |
31 | EFI_BOOT_SCRIPT_TABLE_HEADER | |
32 | TableLength |----|--
33 +------------------------------+ | |
35 +------------------------------+<---- |
36 | EFI_BOOT_SCRIPT_TERMINATE | |
37 +------------------------------+<------
41 SCRIPT_TABLE_PRIVATE_DATA
*mS3BootScriptTablePtr
;
42 EFI_EVENT mEnterRuntimeEvent
;
44 // Allocate SMM copy because we can not use mS3BootScriptTablePtr when we AtRuntime in InSmm.
46 SCRIPT_TABLE_PRIVATE_DATA
*mS3BootScriptTableSmmPtr
;
49 EFI_GUID mBootScriptDataGuid
= {
50 0xaea6b965, 0xdcf5, 0x4311, { 0xb4, 0xb8, 0xf, 0x12, 0x46, 0x44, 0x94, 0xd2 }
53 EFI_GUID mBootScriptDataOrgGuid
= {
54 0xb5af1d7a, 0xb8cf, 0x4eb3, { 0x89, 0x25, 0xa8, 0x20, 0xe1, 0x6b, 0x68, 0x7d }
57 EFI_GUID mBootScriptHeaderDataGuid
= {
58 0x1810ab4a, 0x2314, 0x4df6, { 0x81, 0xeb, 0x67, 0xc6, 0xec, 0x5, 0x85, 0x91 }
62 This is an internal function to add a terminate node the entry, recalculate the table
63 length and fill into the table.
65 @return the base address of the boot script table.
68 S3BootScriptInternalCloseTable (
73 EFI_BOOT_SCRIPT_TERMINATE ScriptTerminate
;
74 EFI_BOOT_SCRIPT_TABLE_HEADER
*ScriptTableInfo
;
75 S3TableBase
= mS3BootScriptTablePtr
->TableBase
;
77 if (S3TableBase
== NULL
) {
79 // the table is not exist
84 // Append the termination entry.
86 ScriptTerminate
.OpCode
= S3_BOOT_SCRIPT_LIB_TERMINATE_OPCODE
;
87 ScriptTerminate
.Length
= (UINT8
) sizeof (EFI_BOOT_SCRIPT_TERMINATE
);
88 CopyMem (mS3BootScriptTablePtr
->TableBase
+ mS3BootScriptTablePtr
->TableLength
, &ScriptTerminate
, sizeof (EFI_BOOT_SCRIPT_TERMINATE
));
90 // fill the table length
92 ScriptTableInfo
= (EFI_BOOT_SCRIPT_TABLE_HEADER
*)(mS3BootScriptTablePtr
->TableBase
);
93 ScriptTableInfo
->TableLength
= mS3BootScriptTablePtr
->TableLength
+ sizeof (EFI_BOOT_SCRIPT_TERMINATE
);
99 // NOTE: Here we did NOT adjust the mS3BootScriptTablePtr->TableLength to
100 // mS3BootScriptTablePtr->TableLength + sizeof (EFI_BOOT_SCRIPT_TERMINATE). Because
101 // maybe in runtime, we still need add entries into the table, and the runtime entry should be
102 // added start before this TERMINATE node.
107 This function save boot script data to LockBox.
108 1. BootSriptPrivate data, BootScript data - Image and DispatchContext are handled by platform.
109 2. BootScriptExecutor, BootScriptExecutor context
110 - ACPI variable - (PI version) sould be handled by SMM driver. S3 Page table is handled here.
111 - ACPI variable - framework version is already handled by Framework CPU driver.
114 SaveBootScriptDataToLockBox (
121 // mS3BootScriptTablePtr->TableLength does not include EFI_BOOT_SCRIPT_TERMINATE, because we need add entry at runtime.
122 // Save all info here, just in case that no one will add boot script entry in SMM.
124 Status
= SaveLockBox (
125 &mBootScriptDataGuid
,
126 (VOID
*)mS3BootScriptTablePtr
->TableBase
,
127 mS3BootScriptTablePtr
->TableLength
+ sizeof(EFI_BOOT_SCRIPT_TERMINATE
)
129 ASSERT_EFI_ERROR (Status
);
131 Status
= SetLockBoxAttributes (&mBootScriptDataGuid
, LOCK_BOX_ATTRIBUTE_RESTORE_IN_PLACE
);
132 ASSERT_EFI_ERROR (Status
);
135 // We need duplicate the original copy, because it may have INSERT boot script at runtime in SMM.
136 // If so, we should use original copy to restore data after OS rewrites the ACPINvs region.
137 // Or the data inserted may cause some original boot script data lost.
139 Status
= SaveLockBox (
140 &mBootScriptDataOrgGuid
,
141 (VOID
*)mS3BootScriptTablePtr
->TableBase
,
142 mS3BootScriptTablePtr
->TableLength
+ sizeof(EFI_BOOT_SCRIPT_TERMINATE
)
144 ASSERT_EFI_ERROR (Status
);
147 // Just need save TableBase.
148 // Do not update other field because they will NOT be used in S3.
150 Status
= SaveLockBox (
151 &mBootScriptHeaderDataGuid
,
152 (VOID
*)&mS3BootScriptTablePtr
->TableBase
,
153 sizeof(mS3BootScriptTablePtr
->TableBase
)
155 ASSERT_EFI_ERROR (Status
);
157 Status
= SetLockBoxAttributes (&mBootScriptHeaderDataGuid
, LOCK_BOX_ATTRIBUTE_RESTORE_IN_PLACE
);
158 ASSERT_EFI_ERROR (Status
);
162 This is the Event call back function to notify the Library the system is entering
165 @param Event Pointer to this event
166 @param Context Event hanlder private data
170 S3BootScriptEventCallBack (
179 // Try to locate it because EfiCreateProtocolNotifyEvent will trigger it once when registration.
180 // Just return if it is not found.
182 Status
= gBS
->LocateProtocol (
183 &gEfiDxeSmmReadyToLockProtocolGuid
,
187 if (EFI_ERROR (Status
)) {
192 // Here we should tell the library that we are enter into runtime phase. and
193 // the memory page number occupied by the table should not grow anymore.
195 if (!mS3BootScriptTablePtr
->AtRuntime
) {
197 // In boot time, we need not write the terminate node when adding a node to boot scipt table
198 // or else, that will impact the performance. However, in runtime, we should append terminate
199 // node on every add to boot script table
201 S3BootScriptInternalCloseTable ();
202 mS3BootScriptTablePtr
->AtRuntime
= TRUE
;
205 // Save BootScript data to lockbox
207 SaveBootScriptDataToLockBox ();
211 This is the Event call back function is triggered in SMM to notify the Library the system is entering
212 run time phase and set InSmm flag.
214 @param Protocol Points to the protocol's unique identifier
215 @param Interface Points to the interface instance
216 @param Handle The handle on which the interface was installed
218 @retval EFI_SUCCESS SmmEventCallback runs successfully
222 S3BootScriptSmmEventCallBack (
223 IN CONST EFI_GUID
*Protocol
,
229 // Check if it is already done
231 if (mS3BootScriptTablePtr
== mS3BootScriptTableSmmPtr
) {
236 // Last chance to call-out, just make sure AtRuntime is set
238 S3BootScriptEventCallBack (NULL
, NULL
);
241 // Save a SMM copy. If TableBase is NOT null, it means SMM copy has been ready, skip copy mem.
243 if (mS3BootScriptTableSmmPtr
->TableBase
== NULL
) {
244 CopyMem (mS3BootScriptTableSmmPtr
, mS3BootScriptTablePtr
, sizeof(*mS3BootScriptTablePtr
));
247 // We should not use ACPINvs copy, because it is not safe.
249 mS3BootScriptTablePtr
= mS3BootScriptTableSmmPtr
;
252 // Set InSmm, we allow boot script update when InSmm, but not allow boot script outside SMM.
253 // InSmm will only be checked if AtRuntime is TRUE.
255 mS3BootScriptTablePtr
->InSmm
= TRUE
;
258 // Record LockBoxLength
260 mLockBoxLength
= mS3BootScriptTableSmmPtr
->TableLength
+ sizeof(EFI_BOOT_SCRIPT_TERMINATE
);
267 this function just identify it is a smm driver or non-smm driver linked against
270 @param ImageHandle The firmware allocated handle for the EFI image.
271 @param SystemTable A pointer to the EFI System Table.
273 @retval RETURN_SUCCESS Allocate the global memory space to store S3 boot script table private data
274 @retval RETURN_OUT_OF_RESOURCES No enough memory to allocated.
278 S3BootScriptLibInitialize (
279 IN EFI_HANDLE ImageHandle
,
280 IN EFI_SYSTEM_TABLE
*SystemTable
284 SCRIPT_TABLE_PRIVATE_DATA
*S3TablePtr
;
285 SCRIPT_TABLE_PRIVATE_DATA
*S3TableSmmPtr
;
287 EFI_SMM_BASE2_PROTOCOL
*SmmBase2
;
289 EFI_SMM_SYSTEM_TABLE2
*Smst
;
290 EFI_PHYSICAL_ADDRESS Buffer
;
292 S3TablePtr
= (SCRIPT_TABLE_PRIVATE_DATA
*)(UINTN
)PcdGet64(PcdS3BootScriptTablePrivateDataPtr
);
294 // The Boot script private data is not be initialized. create it
296 if (S3TablePtr
== 0) {
297 Buffer
= SIZE_4GB
- 1;
298 Status
= gBS
->AllocatePages (
301 EFI_SIZE_TO_PAGES(sizeof(SCRIPT_TABLE_PRIVATE_DATA
)),
304 if (EFI_ERROR (Status
)) {
305 return RETURN_OUT_OF_RESOURCES
;
307 S3TablePtr
= (VOID
*) (UINTN
) Buffer
;
309 PcdSet64 (PcdS3BootScriptTablePrivateDataPtr
, (UINT64
) (UINTN
)S3TablePtr
);
310 ZeroMem (S3TablePtr
, sizeof(SCRIPT_TABLE_PRIVATE_DATA
));
312 // create event to notify the library system enter the runtime phase
314 mEnterRuntimeEvent
= EfiCreateProtocolNotifyEvent (
315 &gEfiDxeSmmReadyToLockProtocolGuid
,
317 S3BootScriptEventCallBack
,
321 ASSERT (mEnterRuntimeEvent
!= NULL
);
323 mS3BootScriptTablePtr
= S3TablePtr
;
326 // Get InSmm, we need to register SmmReadyToLock if this library is linked to SMM driver.
328 Status
= gBS
->LocateProtocol (&gEfiSmmBase2ProtocolGuid
, NULL
, (VOID
**) &SmmBase2
);
329 if (EFI_ERROR (Status
)) {
330 return RETURN_SUCCESS
;
332 Status
= SmmBase2
->InSmm (SmmBase2
, &InSmm
);
333 if (EFI_ERROR (Status
)) {
334 return RETURN_SUCCESS
;
337 return RETURN_SUCCESS
;
340 // Good, we are in SMM
342 Status
= SmmBase2
->GetSmstLocation (SmmBase2
, &Smst
);
343 if (EFI_ERROR (Status
)) {
344 return RETURN_SUCCESS
;
347 S3TableSmmPtr
= (SCRIPT_TABLE_PRIVATE_DATA
*)(UINTN
)PcdGet64(PcdS3BootScriptTablePrivateSmmDataPtr
);
349 // The Boot script private data in SMM is not be initialized. create it
351 if (S3TableSmmPtr
== 0) {
352 Status
= Smst
->SmmAllocatePool (
353 EfiRuntimeServicesData
,
354 sizeof(SCRIPT_TABLE_PRIVATE_DATA
),
355 (VOID
**) &S3TableSmmPtr
357 if (EFI_ERROR (Status
)) {
358 return RETURN_OUT_OF_RESOURCES
;
361 PcdSet64 (PcdS3BootScriptTablePrivateSmmDataPtr
, (UINT64
) (UINTN
)S3TableSmmPtr
);
362 ZeroMem (S3TableSmmPtr
, sizeof(SCRIPT_TABLE_PRIVATE_DATA
));
364 mS3BootScriptTableSmmPtr
= S3TableSmmPtr
;
367 // Then register event after lock
370 Status
= Smst
->SmmRegisterProtocolNotify (
371 &gEfiSmmReadyToLockProtocolGuid
,
372 S3BootScriptSmmEventCallBack
,
375 ASSERT_EFI_ERROR (Status
);
377 return RETURN_SUCCESS
;
380 To get the start address from which a new boot time s3 boot script entry will write into.
381 If the table is not exist, the functio will first allocate a buffer for the table
382 If the table buffer is not enough for the new entry, in non-smm mode, the funtion will
383 invoke reallocate to enlarge buffer.
385 @param EntryLength the new entry length.
387 @retval the address from which the a new s3 boot script entry will write into
390 S3BootScriptGetBootTimeEntryAddAddress (
394 EFI_PHYSICAL_ADDRESS S3TableBase
;
395 EFI_PHYSICAL_ADDRESS NewS3TableBase
;
400 EFI_BOOT_SCRIPT_TABLE_HEADER
*ScriptTableInfo
;
402 S3TableBase
= (EFI_PHYSICAL_ADDRESS
)(UINTN
)(mS3BootScriptTablePtr
->TableBase
);
403 if (S3TableBase
== 0) {
404 // The table is not exist. This is the first to add entry.
405 // Allocate ACPI script table space under 4G memory. We need it to save
406 // some settings done by CSM, which runs after normal script table closed
408 S3TableBase
= 0xffffffff;
409 Status
= gBS
->AllocatePages (
412 2 + PcdGet16(PcdS3BootScriptRuntimeTableReservePageNumber
),
413 (EFI_PHYSICAL_ADDRESS
*)&S3TableBase
416 if (EFI_ERROR(Status
)) {
417 ASSERT_EFI_ERROR (Status
);
423 ScriptTableInfo
= (EFI_BOOT_SCRIPT_TABLE_HEADER
*)(UINTN
)S3TableBase
;
424 ScriptTableInfo
->OpCode
= S3_BOOT_SCRIPT_LIB_TABLE_OPCODE
;
425 ScriptTableInfo
->Length
= (UINT8
) sizeof (EFI_BOOT_SCRIPT_TABLE_HEADER
);
426 ScriptTableInfo
->TableLength
= 0; // will be calculate at CloseTable
427 mS3BootScriptTablePtr
->TableLength
= sizeof (EFI_BOOT_SCRIPT_TABLE_HEADER
);
428 mS3BootScriptTablePtr
->TableBase
= (UINT8
*)(UINTN
)S3TableBase
;
429 mS3BootScriptTablePtr
->TableMemoryPageNumber
= (UINT16
)(2 + PcdGet16(PcdS3BootScriptRuntimeTableReservePageNumber
));
432 // Here we do not count the reserved memory for runtime script table.
433 PageNumber
= (UINT16
)(mS3BootScriptTablePtr
->TableMemoryPageNumber
- PcdGet16(PcdS3BootScriptRuntimeTableReservePageNumber
));
434 TableLength
= mS3BootScriptTablePtr
->TableLength
;
435 if ((UINT32
)(PageNumber
* EFI_PAGE_SIZE
) < (TableLength
+ EntryLength
+ sizeof (EFI_BOOT_SCRIPT_TERMINATE
))) {
437 // The buffer is too small to hold the table, Reallocate the buffer
439 NewS3TableBase
= 0xffffffff;
440 Status
= gBS
->AllocatePages (
443 2 + PageNumber
+ PcdGet16(PcdS3BootScriptRuntimeTableReservePageNumber
),
444 (EFI_PHYSICAL_ADDRESS
*)&NewS3TableBase
447 if (EFI_ERROR(Status
)) {
448 ASSERT_EFI_ERROR (Status
);
452 CopyMem ((VOID
*)(UINTN
)NewS3TableBase
, (VOID
*)(UINTN
)S3TableBase
, TableLength
);
453 gBS
->FreePages (S3TableBase
, mS3BootScriptTablePtr
->TableMemoryPageNumber
);
455 mS3BootScriptTablePtr
->TableBase
= (UINT8
*)(UINTN
)NewS3TableBase
;
456 mS3BootScriptTablePtr
->TableMemoryPageNumber
= (UINT16
) (2 + PageNumber
+ PcdGet16(PcdS3BootScriptRuntimeTableReservePageNumber
));
459 // calculate the the start address for the new entry.
461 NewEntryPtr
= mS3BootScriptTablePtr
->TableBase
+ TableLength
;
464 // update the table lenghth
466 mS3BootScriptTablePtr
->TableLength
= TableLength
+ EntryLength
;
469 // In the boot time, we will not append the termination entry to the boot script
470 // table until the callers think there is no boot time data that should be added and
471 // it is caller's responsibility to explicit call the CloseTable.
478 To get the start address from which a new runtime s3 boot script entry will write into.
479 In this case, it should be ensured that there is enough buffer to hold the entry.
481 @param EntryLength the new entry length.
483 @retval the address from which the a new s3 runtime script entry will write into
486 S3BootScriptGetRuntimeEntryAddAddress (
494 // Check if the memory range reserved for S3 Boot Script table is large enough to hold the node.
496 if (mS3BootScriptTablePtr
->TableLength
+ EntryLength
+ sizeof (EFI_BOOT_SCRIPT_TERMINATE
) <= EFI_PAGES_TO_SIZE((UINT32
)(mS3BootScriptTablePtr
->TableMemoryPageNumber
))) {
497 NewEntryPtr
= mS3BootScriptTablePtr
->TableBase
+ mS3BootScriptTablePtr
->TableLength
;
498 mS3BootScriptTablePtr
->TableLength
= mS3BootScriptTablePtr
->TableLength
+ EntryLength
;
500 // Append a terminate node on every insert
502 S3BootScriptInternalCloseTable ();
504 return (UINT8
*)NewEntryPtr
;
507 To get the start address from which a new s3 boot script entry will write into.
509 @param EntryLength the new entry length.
511 @retval the address from which the a new s3 runtime script entry will write into
514 S3BootScriptGetEntryAddAddress (
519 EFI_BOOT_SCRIPT_TABLE_HEADER TableHeader
;
521 UINTN OrgLockBoxLength
;
523 if (mS3BootScriptTablePtr
->AtRuntime
) {
525 // We need check InSmm when AtRuntime, because after SmmReadyToLock, only SMM driver is allowed to write boot script.
527 if (!mS3BootScriptTablePtr
->InSmm
) {
529 // Add DEBUG ERROR, so that we can find it at boot time.
530 // Do not use ASSERT, because we may have test invoke this interface.
532 DEBUG ((EFI_D_ERROR
, "FATAL ERROR: Set boot script after ReadyToLock!!!\n"));
537 // NOTE: OS will restore ACPINvs data. After S3, the table length in mS3BootScriptTableSmmPtr (SMM) is different with
538 // table length in BootScriptTable header (ACPINvs).
539 // So here we need sync them. We choose ACPINvs table length, because we want to override the boot script saved
540 // in SMM every time.
542 ASSERT (mS3BootScriptTablePtr
== mS3BootScriptTableSmmPtr
);
543 CopyMem ((VOID
*)&TableHeader
, (VOID
*)mS3BootScriptTablePtr
->TableBase
, sizeof(EFI_BOOT_SCRIPT_TABLE_HEADER
));
544 if (mS3BootScriptTablePtr
->TableLength
+ sizeof(EFI_BOOT_SCRIPT_TERMINATE
) != TableHeader
.TableLength
) {
546 // Restore it to use original value
548 OrgLockBoxLength
= mLockBoxLength
;
549 Status
= RestoreLockBox (
550 &mBootScriptDataOrgGuid
,
551 (VOID
*)mS3BootScriptTablePtr
->TableBase
,
554 ASSERT_EFI_ERROR (Status
);
555 ASSERT (OrgLockBoxLength
== mLockBoxLength
);
558 // Update the current BootScriptData into LockBox as well
560 Status
= UpdateLockBox (
561 &mBootScriptDataGuid
,
563 (VOID
*)mS3BootScriptTablePtr
->TableBase
,
566 ASSERT_EFI_ERROR (Status
);
569 // NOTE: We should NOT use TableHeader.TableLength, because it is already updated to be whole length.
571 mS3BootScriptTablePtr
->TableLength
= (UINT32
)(mLockBoxLength
- sizeof(EFI_BOOT_SCRIPT_TERMINATE
));
574 NewEntryPtr
= S3BootScriptGetRuntimeEntryAddAddress (EntryLength
);
576 if (EntryLength
!= 0) {
578 // Now the length field is updated, need sync to lockbox.
579 // So in S3 resume, the data can be restored correctly.
581 CopyMem ((VOID
*)&TableHeader
, (VOID
*)mS3BootScriptTablePtr
->TableBase
, sizeof(EFI_BOOT_SCRIPT_TABLE_HEADER
));
582 Status
= UpdateLockBox (
583 &mBootScriptDataGuid
,
584 OFFSET_OF(EFI_BOOT_SCRIPT_TABLE_HEADER
, TableLength
),
585 &TableHeader
.TableLength
,
586 sizeof(TableHeader
.TableLength
)
588 ASSERT_EFI_ERROR (Status
);
591 NewEntryPtr
= S3BootScriptGetBootTimeEntryAddAddress (EntryLength
);
598 Sync BootScript LockBox data.
600 @param Script The address from where the boot script has been added or updated.
611 ScriptOffset
= (UINTN
) (Script
- mS3BootScriptTablePtr
->TableBase
);
613 if (!mS3BootScriptTablePtr
->AtRuntime
|| !mS3BootScriptTablePtr
->InSmm
|| ScriptOffset
>= mLockBoxLength
) {
615 // If it is not at runtime in SMM or in the range that needs to be synced in LockBox, just return.
621 // Update BootScriptData
622 // So in S3 resume, the data can be restored correctly.
624 Status
= UpdateLockBox (
625 &mBootScriptDataGuid
,
627 (VOID
*)((UINTN
)mS3BootScriptTablePtr
->TableBase
+ ScriptOffset
),
628 mLockBoxLength
- ScriptOffset
630 ASSERT_EFI_ERROR (Status
);
634 This is an function to close the S3 boot script table. The function could only be called in
635 BOOT time phase. To comply with the Framework spec definition on
636 EFI_BOOT_SCRIPT_SAVE_PROTOCOL.CloseTable(), this function will fulfill following things:
637 1. Closes the specified boot script table
638 2. It allocates a new memory pool to duplicate all the boot scripts in the specified table.
639 Once this function is called, the table maintained by the library will be destroyed
640 after it is copied into the allocated pool.
641 3. Any attempts to add a script record after calling this function will cause a new table
642 to be created by the library.
643 4. The base address of the allocated pool will be returned in Address. Note that after
644 using the boot script table, the CALLER is responsible for freeing the pool that is allocated
647 In Spec PI1.1, this EFI_BOOT_SCRIPT_SAVE_PROTOCOL.CloseTable() is retired. To provides this API for now is
648 for Framework Spec compatibility.
650 If anyone does call CloseTable() on a real platform, then the caller is responsible for figuring out
651 how to get the script to run on an S3 resume because the boot script maintained by the lib will be
654 @return the base address of the new copy of the boot script table.
655 @note this function could only called in boot time phase
660 S3BootScriptCloseTable (
668 EFI_BOOT_SCRIPT_TABLE_HEADER
*ScriptTableInfo
;
670 S3TableBase
= mS3BootScriptTablePtr
->TableBase
;
671 if (S3TableBase
== 0) {
675 // Append the termination record the S3 boot script table
677 S3BootScriptInternalCloseTable();
678 TableLength
= mS3BootScriptTablePtr
->TableLength
+ sizeof (EFI_BOOT_SCRIPT_TERMINATE
);
680 // Allocate the buffer and copy the boot script to the buffer.
682 Status
= gBS
->AllocatePool (
687 if (EFI_ERROR (Status
)) {
690 CopyMem (Buffer
, S3TableBase
, TableLength
);
693 // Destroy the table maintained by the library so that the next write operation
694 // will write the record to the first entry of the table.
696 // Fill the table header.
697 ScriptTableInfo
= (EFI_BOOT_SCRIPT_TABLE_HEADER
*)S3TableBase
;
698 ScriptTableInfo
->OpCode
= S3_BOOT_SCRIPT_LIB_TABLE_OPCODE
;
699 ScriptTableInfo
->Length
= (UINT8
) sizeof (EFI_BOOT_SCRIPT_TABLE_HEADER
);
700 ScriptTableInfo
->TableLength
= 0; // will be calculate at close the table
702 mS3BootScriptTablePtr
->TableLength
= sizeof (EFI_BOOT_SCRIPT_TABLE_HEADER
);
706 Save I/O write to boot script
708 @param Width The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
709 @param Address The base address of the I/O operations.
710 @param Count The number of I/O operations to perform.
711 @param Buffer The source buffer from which to write data.
713 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
714 @retval RETURN_SUCCESS Opcode is added.
718 S3BootScriptSaveIoWrite (
719 IN S3_BOOT_SCRIPT_LIB_WIDTH Width
,
729 EFI_BOOT_SCRIPT_IO_WRITE ScriptIoWrite
;
731 WidthInByte
= (UINT8
) (0x01 << (Width
& 0x03));
732 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_IO_WRITE
) + (WidthInByte
* Count
));
734 Script
= S3BootScriptGetEntryAddAddress (Length
);
735 if (Script
== NULL
) {
736 return RETURN_OUT_OF_RESOURCES
;
741 ScriptIoWrite
.OpCode
= EFI_BOOT_SCRIPT_IO_WRITE_OPCODE
;
742 ScriptIoWrite
.Length
= Length
;
743 ScriptIoWrite
.Width
= Width
;
744 ScriptIoWrite
.Address
= Address
;
745 ScriptIoWrite
.Count
= (UINT32
) Count
;
746 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptIoWrite
, sizeof(EFI_BOOT_SCRIPT_IO_WRITE
));
747 CopyMem ((VOID
*)(Script
+ sizeof (EFI_BOOT_SCRIPT_IO_WRITE
)), Buffer
, WidthInByte
* Count
);
749 SyncBootScript (Script
);
751 return RETURN_SUCCESS
;
755 Adds a record for an I/O modify operation into a S3 boot script table
757 @param Width The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
758 @param Address The base address of the I/O operations.
759 @param Data A pointer to the data to be OR-ed.
760 @param DataMask A pointer to the data mask to be AND-ed with the data read from the register
762 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
763 @retval RETURN_SUCCESS Opcode is added.
767 S3BootScriptSaveIoReadWrite (
768 IN S3_BOOT_SCRIPT_LIB_WIDTH Width
,
777 EFI_BOOT_SCRIPT_IO_READ_WRITE ScriptIoReadWrite
;
779 WidthInByte
= (UINT8
) (0x01 << (Width
& 0x03));
780 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_IO_READ_WRITE
) + (WidthInByte
* 2));
782 Script
= S3BootScriptGetEntryAddAddress (Length
);
783 if (Script
== NULL
) {
784 return RETURN_OUT_OF_RESOURCES
;
789 ScriptIoReadWrite
.OpCode
= EFI_BOOT_SCRIPT_IO_READ_WRITE_OPCODE
;
790 ScriptIoReadWrite
.Length
= Length
;
791 ScriptIoReadWrite
.Width
= Width
;
792 ScriptIoReadWrite
.Address
= Address
;
794 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptIoReadWrite
, sizeof(EFI_BOOT_SCRIPT_IO_READ_WRITE
));
795 CopyMem ((VOID
*)(Script
+ sizeof (EFI_BOOT_SCRIPT_IO_READ_WRITE
)), Data
, WidthInByte
);
796 CopyMem ((VOID
*)(Script
+ sizeof (EFI_BOOT_SCRIPT_IO_READ_WRITE
) + WidthInByte
), DataMask
, WidthInByte
);
798 SyncBootScript (Script
);
800 return RETURN_SUCCESS
;
803 Adds a record for a memory write operation into a specified boot script table.
805 @param Width The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
806 @param Address The base address of the memory operations
807 @param Count The number of memory operations to perform.
808 @param Buffer The source buffer from which to write the data.
810 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
811 @retval RETURN_SUCCESS Opcode is added.
815 S3BootScriptSaveMemWrite (
816 IN S3_BOOT_SCRIPT_LIB_WIDTH Width
,
825 EFI_BOOT_SCRIPT_MEM_WRITE ScriptMemWrite
;
827 WidthInByte
= (UINT8
) (0x01 << (Width
& 0x03));
828 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_MEM_WRITE
) + (WidthInByte
* Count
));
830 Script
= S3BootScriptGetEntryAddAddress (Length
);
831 if (Script
== NULL
) {
832 return RETURN_OUT_OF_RESOURCES
;
837 ScriptMemWrite
.OpCode
= EFI_BOOT_SCRIPT_MEM_WRITE_OPCODE
;
838 ScriptMemWrite
.Length
= Length
;
839 ScriptMemWrite
.Width
= Width
;
840 ScriptMemWrite
.Address
= Address
;
841 ScriptMemWrite
.Count
= (UINT32
) Count
;
843 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptMemWrite
, sizeof(EFI_BOOT_SCRIPT_MEM_WRITE
));
844 CopyMem ((VOID
*)(Script
+ sizeof (EFI_BOOT_SCRIPT_MEM_WRITE
)), Buffer
, WidthInByte
* Count
);
846 SyncBootScript (Script
);
848 return RETURN_SUCCESS
;
851 Adds a record for a memory modify operation into a specified boot script table.
853 @param Width The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
854 @param Address The base address of the memory operations. Address needs alignment if required
855 @param Data A pointer to the data to be OR-ed.
856 @param DataMask A pointer to the data mask to be AND-ed with the data read from the register.
858 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
859 @retval RETURN_SUCCESS Opcode is added.
863 S3BootScriptSaveMemReadWrite (
864 IN S3_BOOT_SCRIPT_LIB_WIDTH Width
,
873 EFI_BOOT_SCRIPT_MEM_READ_WRITE ScriptMemReadWrite
;
875 WidthInByte
= (UINT8
) (0x01 << (Width
& 0x03));
876 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_MEM_READ_WRITE
) + (WidthInByte
* 2));
878 Script
= S3BootScriptGetEntryAddAddress (Length
);
879 if (Script
== NULL
) {
880 return RETURN_OUT_OF_RESOURCES
;
885 ScriptMemReadWrite
.OpCode
= EFI_BOOT_SCRIPT_MEM_READ_WRITE_OPCODE
;
886 ScriptMemReadWrite
.Length
= Length
;
887 ScriptMemReadWrite
.Width
= Width
;
888 ScriptMemReadWrite
.Address
= Address
;
890 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptMemReadWrite
, sizeof (EFI_BOOT_SCRIPT_MEM_READ_WRITE
));
891 CopyMem ((VOID
*)(Script
+ sizeof (EFI_BOOT_SCRIPT_MEM_READ_WRITE
)), Data
, WidthInByte
);
892 CopyMem ((VOID
*)(Script
+ sizeof (EFI_BOOT_SCRIPT_MEM_READ_WRITE
) + WidthInByte
), DataMask
, WidthInByte
);
894 SyncBootScript (Script
);
896 return RETURN_SUCCESS
;
899 Adds a record for a PCI configuration space write operation into a specified boot script table.
901 @param Width The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
902 @param Address The address within the PCI configuration space.
903 @param Count The number of PCI operations to perform.
904 @param Buffer The source buffer from which to write the data.
906 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
907 @retval RETURN_SUCCESS Opcode is added.
908 @note A known Limitations in the implementation which is 64bits operations are not supported.
913 S3BootScriptSavePciCfgWrite (
914 IN S3_BOOT_SCRIPT_LIB_WIDTH Width
,
923 EFI_BOOT_SCRIPT_PCI_CONFIG_WRITE ScriptPciWrite
;
925 if (Width
== S3BootScriptWidthUint64
||
926 Width
== S3BootScriptWidthFifoUint64
||
927 Width
== S3BootScriptWidthFillUint64
) {
928 return EFI_INVALID_PARAMETER
;
931 WidthInByte
= (UINT8
) (0x01 << (Width
& 0x03));
932 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_WRITE
) + (WidthInByte
* Count
));
934 Script
= S3BootScriptGetEntryAddAddress (Length
);
935 if (Script
== NULL
) {
936 return RETURN_OUT_OF_RESOURCES
;
941 ScriptPciWrite
.OpCode
= EFI_BOOT_SCRIPT_PCI_CONFIG_WRITE_OPCODE
;
942 ScriptPciWrite
.Length
= Length
;
943 ScriptPciWrite
.Width
= Width
;
944 ScriptPciWrite
.Address
= Address
;
945 ScriptPciWrite
.Count
= (UINT32
) Count
;
947 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptPciWrite
, sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_WRITE
));
948 CopyMem ((VOID
*)(Script
+ sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_WRITE
)), Buffer
, WidthInByte
* Count
);
950 SyncBootScript (Script
);
952 return RETURN_SUCCESS
;
955 Adds a record for a PCI configuration space modify operation into a specified boot script table.
957 @param Width The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
958 @param Address The address within the PCI configuration space.
959 @param Data A pointer to the data to be OR-ed.The size depends on Width.
960 @param DataMask A pointer to the data mask to be AND-ed.
962 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
963 @retval RETURN__SUCCESS Opcode is added.
964 @note A known Limitations in the implementation which is 64bits operations are not supported.
969 S3BootScriptSavePciCfgReadWrite (
970 IN S3_BOOT_SCRIPT_LIB_WIDTH Width
,
979 EFI_BOOT_SCRIPT_PCI_CONFIG_READ_WRITE ScriptPciReadWrite
;
981 if (Width
== S3BootScriptWidthUint64
||
982 Width
== S3BootScriptWidthFifoUint64
||
983 Width
== S3BootScriptWidthFillUint64
) {
984 return EFI_INVALID_PARAMETER
;
987 WidthInByte
= (UINT8
) (0x01 << (Width
& 0x03));
988 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_READ_WRITE
) + (WidthInByte
* 2));
990 Script
= S3BootScriptGetEntryAddAddress (Length
);
991 if (Script
== NULL
) {
992 return RETURN_OUT_OF_RESOURCES
;
997 ScriptPciReadWrite
.OpCode
= EFI_BOOT_SCRIPT_PCI_CONFIG_READ_WRITE_OPCODE
;
998 ScriptPciReadWrite
.Length
= Length
;
999 ScriptPciReadWrite
.Width
= Width
;
1000 ScriptPciReadWrite
.Address
= Address
;
1002 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptPciReadWrite
, sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_READ_WRITE
));
1003 CopyMem ((VOID
*)(Script
+ sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_READ_WRITE
)), Data
, WidthInByte
);
1005 (VOID
*)(Script
+ sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_READ_WRITE
) + WidthInByte
),
1010 SyncBootScript (Script
);
1012 return RETURN_SUCCESS
;
1015 Adds a record for a PCI configuration 2 space write operation into a specified boot script table.
1017 @param Width The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
1018 @param Segment The PCI segment number for Address.
1019 @param Address The address within the PCI configuration space.
1020 @param Count The number of PCI operations to perform.
1021 @param Buffer The source buffer from which to write the data.
1023 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
1024 @retval RETURN_SUCCESS Opcode is added.
1025 @note A known Limitations in the implementation which is non-zero Segment and 64bits operations are not supported.
1030 S3BootScriptSavePciCfg2Write (
1031 IN S3_BOOT_SCRIPT_LIB_WIDTH Width
,
1041 EFI_BOOT_SCRIPT_PCI_CONFIG2_WRITE ScriptPciWrite2
;
1044 Width
== S3BootScriptWidthUint64
||
1045 Width
== S3BootScriptWidthFifoUint64
||
1046 Width
== S3BootScriptWidthFillUint64
) {
1047 return EFI_INVALID_PARAMETER
;
1050 WidthInByte
= (UINT8
) (0x01 << (Width
& 0x03));
1051 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG2_WRITE
) + (WidthInByte
* Count
));
1053 Script
= S3BootScriptGetEntryAddAddress (Length
);
1054 if (Script
== NULL
) {
1055 return RETURN_OUT_OF_RESOURCES
;
1058 // Build script data
1060 ScriptPciWrite2
.OpCode
= EFI_BOOT_SCRIPT_PCI_CONFIG2_WRITE_OPCODE
;
1061 ScriptPciWrite2
.Length
= Length
;
1062 ScriptPciWrite2
.Width
= Width
;
1063 ScriptPciWrite2
.Address
= Address
;
1064 ScriptPciWrite2
.Segment
= Segment
;
1065 ScriptPciWrite2
.Count
= (UINT32
)Count
;
1067 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptPciWrite2
, sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG2_WRITE
));
1068 CopyMem ((VOID
*)(Script
+ sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG2_WRITE
)), Buffer
, WidthInByte
* Count
);
1070 SyncBootScript (Script
);
1072 return RETURN_SUCCESS
;
1075 Adds a record for a PCI configuration 2 space modify operation into a specified boot script table.
1077 @param Width The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
1078 @param Segment The PCI segment number for Address.
1079 @param Address The address within the PCI configuration space.
1080 @param Data A pointer to the data to be OR-ed. The size depends on Width.
1081 @param DataMask A pointer to the data mask to be AND-ed.
1083 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
1084 @retval RETURN_SUCCESS Opcode is added.
1085 @note A known Limitations in the implementation which is non-zero Segment and 64bits operations are not supported.
1090 S3BootScriptSavePciCfg2ReadWrite (
1091 IN S3_BOOT_SCRIPT_LIB_WIDTH Width
,
1101 EFI_BOOT_SCRIPT_PCI_CONFIG2_READ_WRITE ScriptPciReadWrite2
;
1104 Width
== S3BootScriptWidthUint64
||
1105 Width
== S3BootScriptWidthFifoUint64
||
1106 Width
== S3BootScriptWidthFillUint64
) {
1107 return EFI_INVALID_PARAMETER
;
1110 WidthInByte
= (UINT8
) (0x01 << (Width
& 0x03));
1111 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG2_READ_WRITE
) + (WidthInByte
* 2));
1113 Script
= S3BootScriptGetEntryAddAddress (Length
);
1114 if (Script
== NULL
) {
1115 return RETURN_OUT_OF_RESOURCES
;
1118 // Build script data
1120 ScriptPciReadWrite2
.OpCode
= EFI_BOOT_SCRIPT_PCI_CONFIG2_READ_WRITE_OPCODE
;
1121 ScriptPciReadWrite2
.Length
= Length
;
1122 ScriptPciReadWrite2
.Width
= Width
;
1123 ScriptPciReadWrite2
.Segment
= Segment
;
1124 ScriptPciReadWrite2
.Address
= Address
;
1126 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptPciReadWrite2
, sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG2_READ_WRITE
));
1127 CopyMem ((VOID
*)(Script
+ sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG2_READ_WRITE
)), Data
, WidthInByte
);
1129 (VOID
*)(Script
+ sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG2_READ_WRITE
) + WidthInByte
),
1134 SyncBootScript (Script
);
1136 return RETURN_SUCCESS
;
1140 Checks the parameter of S3BootScriptSaveSmbusExecute().
1142 This function checks the input parameters of SmbusExecute(). If the input parameters are valid
1143 for certain SMBus bus protocol, it will return EFI_SUCCESS; otherwise, it will return certain
1144 error code based on the input SMBus bus protocol.
1146 @param SmBusAddress Address that encodes the SMBUS Slave Address, SMBUS Command, SMBUS Data Length,
1148 @param Operation Signifies which particular SMBus hardware protocol instance that
1149 it will use to execute the SMBus transactions. This SMBus
1150 hardware protocol is defined by the SMBus Specification and is
1152 @param Length Signifies the number of bytes that this operation will do. The
1153 maximum number of bytes can be revision specific and operation
1154 specific. This field will contain the actual number of bytes that
1155 are executed for this operation. Not all operations require this
1157 @param Buffer Contains the value of data to execute to the SMBus slave device.
1158 Not all operations require this argument. The length of this
1159 buffer is identified by Length.
1161 @retval EFI_SUCCESS All the parameters are valid for the corresponding SMBus bus
1163 @retval EFI_INVALID_PARAMETER Operation is not defined in EFI_SMBUS_OPERATION.
1164 @retval EFI_INVALID_PARAMETER Length/Buffer is NULL for operations except for EfiSmbusQuickRead
1165 and EfiSmbusQuickWrite. Length is outside the range of valid
1167 @retval EFI_UNSUPPORTED The SMBus operation or PEC is not supported.
1168 @retval EFI_BUFFER_TOO_SMALL Buffer is not sufficient for this operation.
1173 IN UINTN SmBusAddress
,
1174 IN EFI_SMBUS_OPERATION Operation
,
1175 IN OUT UINTN
*Length
,
1181 EFI_SMBUS_DEVICE_COMMAND Command
;
1184 Command
= SMBUS_LIB_COMMAND (SmBusAddress
);
1185 PecCheck
= SMBUS_LIB_PEC (SmBusAddress
);
1187 // Set default value to be 2:
1188 // for SmbusReadWord, SmbusWriteWord and SmbusProcessCall.
1191 Status
= EFI_SUCCESS
;
1192 switch (Operation
) {
1193 case EfiSmbusQuickRead
:
1194 case EfiSmbusQuickWrite
:
1195 if (PecCheck
|| Command
!= 0) {
1196 return EFI_UNSUPPORTED
;
1199 case EfiSmbusReceiveByte
:
1200 case EfiSmbusSendByte
:
1202 return EFI_UNSUPPORTED
;
1205 // Cascade to check length parameter.
1207 case EfiSmbusReadByte
:
1208 case EfiSmbusWriteByte
:
1211 // Cascade to check length parameter.
1213 case EfiSmbusReadWord
:
1214 case EfiSmbusWriteWord
:
1215 case EfiSmbusProcessCall
:
1216 if (Buffer
== NULL
|| Length
== NULL
) {
1217 return EFI_INVALID_PARAMETER
;
1218 } else if (*Length
< RequiredLen
) {
1219 Status
= EFI_BUFFER_TOO_SMALL
;
1221 *Length
= RequiredLen
;
1223 case EfiSmbusReadBlock
:
1224 case EfiSmbusWriteBlock
:
1225 case EfiSmbusBWBRProcessCall
:
1226 if ((Buffer
== NULL
) ||
1228 (*Length
< MIN_SMBUS_BLOCK_LEN
) ||
1229 (*Length
> MAX_SMBUS_BLOCK_LEN
)) {
1230 return EFI_INVALID_PARAMETER
;
1234 return EFI_INVALID_PARAMETER
;
1240 Adds a record for an SMBus command execution into a specified boot script table.
1242 @param SmBusAddress Address that encodes the SMBUS Slave Address, SMBUS Command, SMBUS Data Length, and PEC.
1243 @param Operation Indicates which particular SMBus protocol it will use to execute the SMBus
1245 @param Length A pointer to signify the number of bytes that this operation will do.
1246 @param Buffer Contains the value of data to execute to the SMBUS slave device.
1248 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
1249 @retval RETURN_SUCCESS Opcode is added.
1253 S3BootScriptSaveSmbusExecute (
1254 IN UINTN SmBusAddress
,
1255 IN EFI_SMBUS_OPERATION Operation
,
1264 EFI_BOOT_SCRIPT_SMBUS_EXECUTE ScriptSmbusExecute
;
1266 if (Length
== NULL
) {
1269 BufferLength
= *Length
;
1272 Status
= CheckParameters (SmBusAddress
, Operation
, &BufferLength
, Buffer
);
1273 if (EFI_ERROR (Status
)) {
1277 DataSize
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_SMBUS_EXECUTE
) + BufferLength
);
1279 Script
= S3BootScriptGetEntryAddAddress (DataSize
);
1280 if (Script
== NULL
) {
1281 return RETURN_OUT_OF_RESOURCES
;
1284 // Build script data
1286 ScriptSmbusExecute
.OpCode
= EFI_BOOT_SCRIPT_SMBUS_EXECUTE_OPCODE
;
1287 ScriptSmbusExecute
.Length
= DataSize
;
1288 ScriptSmbusExecute
.SmBusAddress
= (UINT64
) SmBusAddress
;
1289 ScriptSmbusExecute
.Operation
= Operation
;
1290 ScriptSmbusExecute
.DataSize
= (UINT32
) BufferLength
;
1292 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptSmbusExecute
, sizeof (EFI_BOOT_SCRIPT_SMBUS_EXECUTE
));
1294 (VOID
*)(Script
+ sizeof (EFI_BOOT_SCRIPT_SMBUS_EXECUTE
)),
1299 SyncBootScript (Script
);
1301 return RETURN_SUCCESS
;
1304 Adds a record for an execution stall on the processor into a specified boot script table.
1306 @param Duration Duration in microseconds of the stall
1308 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
1309 @retval RETURN_SUCCESS Opcode is added.
1313 S3BootScriptSaveStall (
1319 EFI_BOOT_SCRIPT_STALL ScriptStall
;
1321 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_STALL
));
1323 Script
= S3BootScriptGetEntryAddAddress (Length
);
1324 if (Script
== NULL
) {
1325 return RETURN_OUT_OF_RESOURCES
;
1328 // Build script data
1330 ScriptStall
.OpCode
= EFI_BOOT_SCRIPT_STALL_OPCODE
;
1331 ScriptStall
.Length
= Length
;
1332 ScriptStall
.Duration
= Duration
;
1334 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptStall
, sizeof (EFI_BOOT_SCRIPT_STALL
));
1336 SyncBootScript (Script
);
1338 return RETURN_SUCCESS
;
1341 Adds a record for dispatching specified arbitrary code into a specified boot script table.
1343 @param EntryPoint Entry point of the code to be dispatched.
1344 @param Context Argument to be passed into the EntryPoint of the code to be dispatched.
1346 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
1347 @retval RETURN_SUCCESS Opcode is added.
1351 S3BootScriptSaveDispatch2 (
1352 IN VOID
*EntryPoint
,
1358 EFI_BOOT_SCRIPT_DISPATCH_2 ScriptDispatch2
;
1359 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_DISPATCH_2
));
1361 Script
= S3BootScriptGetEntryAddAddress (Length
);
1362 if (Script
== NULL
) {
1363 return RETURN_OUT_OF_RESOURCES
;
1366 // Build script data
1368 ScriptDispatch2
.OpCode
= EFI_BOOT_SCRIPT_DISPATCH_2_OPCODE
;
1369 ScriptDispatch2
.Length
= Length
;
1370 ScriptDispatch2
.EntryPoint
= (EFI_PHYSICAL_ADDRESS
)(UINTN
)EntryPoint
;
1371 ScriptDispatch2
.Context
= (EFI_PHYSICAL_ADDRESS
)(UINTN
)Context
;
1373 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptDispatch2
, sizeof (EFI_BOOT_SCRIPT_DISPATCH_2
));
1375 SyncBootScript (Script
);
1377 return RETURN_SUCCESS
;
1381 Adds a record for memory reads of the memory location and continues when the exit criteria is
1382 satisfied or after a defined duration.
1384 @param Width The width of the memory operations.
1385 @param Address The base address of the memory operations.
1386 @param BitMask A pointer to the bit mask to be AND-ed with the data read from the register.
1387 @param BitValue A pointer to the data value after to be Masked.
1388 @param Duration Duration in microseconds of the stall.
1389 @param LoopTimes The times of the register polling.
1391 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
1392 @retval RETURN_SUCCESS Opcode is added.
1397 S3BootScriptSaveMemPoll (
1398 IN S3_BOOT_SCRIPT_LIB_WIDTH Width
,
1409 EFI_BOOT_SCRIPT_MEM_POLL ScriptMemPoll
;
1411 WidthInByte
= (UINT8
) (0x01 << (Width
& 0x03));
1413 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_MEM_POLL
) + (WidthInByte
* 2));
1415 Script
= S3BootScriptGetEntryAddAddress (Length
);
1416 if (Script
== NULL
) {
1417 return RETURN_OUT_OF_RESOURCES
;
1420 // Build script data
1422 ScriptMemPoll
.OpCode
= EFI_BOOT_SCRIPT_MEM_POLL_OPCODE
;
1423 ScriptMemPoll
.Length
= Length
;
1424 ScriptMemPoll
.Width
= Width
;
1425 ScriptMemPoll
.Address
= Address
;
1426 ScriptMemPoll
.Duration
= Duration
;
1427 ScriptMemPoll
.LoopTimes
= LoopTimes
;
1429 CopyMem ((UINT8
*) (Script
+ sizeof (EFI_BOOT_SCRIPT_MEM_POLL
)), BitValue
, WidthInByte
);
1430 CopyMem ((UINT8
*) (Script
+ sizeof (EFI_BOOT_SCRIPT_MEM_POLL
) + WidthInByte
), BitMask
, WidthInByte
);
1431 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptMemPoll
, sizeof (EFI_BOOT_SCRIPT_MEM_POLL
));
1433 SyncBootScript (Script
);
1435 return RETURN_SUCCESS
;
1438 Store arbitrary information in the boot script table. This opcode is a no-op on dispatch and is only
1439 used for debugging script issues.
1441 @param InformationLength Length of the data in bytes
1442 @param Information Information to be logged in the boot scrpit
1444 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
1445 @retval RETURN_SUCCESS Opcode is added.
1450 S3BootScriptSaveInformation (
1451 IN UINT32 InformationLength
,
1452 IN VOID
*Information
1457 EFI_BOOT_SCRIPT_INFORMATION ScriptInformation
;
1459 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_INFORMATION
) + InformationLength
);
1461 Script
= S3BootScriptGetEntryAddAddress (Length
);
1462 if (Script
== NULL
) {
1463 return RETURN_OUT_OF_RESOURCES
;
1466 // Build script data
1468 ScriptInformation
.OpCode
= EFI_BOOT_SCRIPT_INFORMATION_OPCODE
;
1469 ScriptInformation
.Length
= Length
;
1472 ScriptInformation
.InformationLength
= InformationLength
;
1474 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptInformation
, sizeof (EFI_BOOT_SCRIPT_INFORMATION
));
1475 CopyMem ((VOID
*)(Script
+ sizeof (EFI_BOOT_SCRIPT_INFORMATION
)), (VOID
*) Information
, (UINTN
) InformationLength
);
1477 SyncBootScript (Script
);
1479 return RETURN_SUCCESS
;
1483 Store a string in the boot script table. This opcode is a no-op on dispatch and is only
1484 used for debugging script issues.
1486 @param String The string to save to boot script table
1488 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
1489 @retval RETURN_SUCCESS Opcode is added.
1494 S3BootScriptSaveInformationAsciiString (
1495 IN CONST CHAR8
*String
1498 return S3BootScriptSaveInformation (
1499 (UINT32
) AsciiStrLen (String
) + 1,
1504 Adds a record for dispatching specified arbitrary code into a specified boot script table.
1506 @param EntryPoint Entry point of the code to be dispatched.
1508 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
1509 @retval RETURN_SUCCESS Opcode is added.
1513 S3BootScriptSaveDispatch (
1519 EFI_BOOT_SCRIPT_DISPATCH ScriptDispatch
;
1521 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_DISPATCH
));
1523 Script
= S3BootScriptGetEntryAddAddress (Length
);
1524 if (Script
== NULL
) {
1525 return RETURN_OUT_OF_RESOURCES
;
1528 // Build script data
1530 ScriptDispatch
.OpCode
= EFI_BOOT_SCRIPT_DISPATCH_OPCODE
;
1531 ScriptDispatch
.Length
= Length
;
1532 ScriptDispatch
.EntryPoint
= (EFI_PHYSICAL_ADDRESS
)(UINTN
)EntryPoint
;
1534 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptDispatch
, sizeof (EFI_BOOT_SCRIPT_DISPATCH
));
1536 SyncBootScript (Script
);
1538 return RETURN_SUCCESS
;
1542 Adds a record for I/O reads the I/O location and continues when the exit criteria is satisfied or after a
1545 @param Width The width of the I/O operations.
1546 @param Address The base address of the I/O operations.
1547 @param Data The comparison value used for the polling exit criteria.
1548 @param DataMask Mask used for the polling criteria. The bits in the bytes below Width which are zero
1549 in Data are ignored when polling the memory address.
1550 @param Delay The number of 100ns units to poll. Note that timer available may be of poorer
1551 granularity so the delay may be longer.
1553 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
1554 @retval RETURN_SUCCESS Opcode is added.
1559 S3BootScriptSaveIoPoll (
1560 IN S3_BOOT_SCRIPT_LIB_WIDTH Width
,
1570 EFI_BOOT_SCRIPT_IO_POLL ScriptIoPoll
;
1573 WidthInByte
= (UINT8
) (0x01 << (Width
& 0x03));
1574 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_IO_POLL
) + (WidthInByte
* 2));
1576 Script
= S3BootScriptGetEntryAddAddress (Length
);
1577 if (Script
== NULL
) {
1578 return RETURN_OUT_OF_RESOURCES
;
1581 // Build script data
1583 ScriptIoPoll
.OpCode
= EFI_BOOT_SCRIPT_IO_POLL_OPCODE
;
1584 ScriptIoPoll
.Length
= (UINT8
) (sizeof (EFI_BOOT_SCRIPT_IO_POLL
) + (WidthInByte
* 2));
1585 ScriptIoPoll
.Width
= Width
;
1586 ScriptIoPoll
.Address
= Address
;
1587 ScriptIoPoll
.Delay
= Delay
;
1589 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptIoPoll
, sizeof (EFI_BOOT_SCRIPT_IO_POLL
));
1590 CopyMem ((UINT8
*) (Script
+ sizeof (EFI_BOOT_SCRIPT_IO_POLL
)), Data
, WidthInByte
);
1591 CopyMem ((UINT8
*) (Script
+ sizeof (EFI_BOOT_SCRIPT_IO_POLL
) + WidthInByte
), DataMask
, WidthInByte
);
1593 SyncBootScript (Script
);
1595 return RETURN_SUCCESS
;
1599 Adds a record for PCI configuration space reads and continues when the exit criteria is satisfied or
1600 after a defined duration.
1602 @param Width The width of the I/O operations.
1603 @param Address The address within the PCI configuration space.
1604 @param Data The comparison value used for the polling exit criteria.
1605 @param DataMask Mask used for the polling criteria. The bits in the bytes below Width which are zero
1606 in Data are ignored when polling the memory address
1607 @param Delay The number of 100ns units to poll. Note that timer available may be of poorer
1608 granularity so the delay may be longer.
1610 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
1611 @retval RETURN_SUCCESS Opcode is added.
1612 @note A known Limitations in the implementation which is 64bits operations are not supported.
1617 S3BootScriptSavePciPoll (
1618 IN S3_BOOT_SCRIPT_LIB_WIDTH Width
,
1628 EFI_BOOT_SCRIPT_PCI_CONFIG_POLL ScriptPciPoll
;
1630 if (Width
== S3BootScriptWidthUint64
||
1631 Width
== S3BootScriptWidthFifoUint64
||
1632 Width
== S3BootScriptWidthFillUint64
) {
1633 return EFI_INVALID_PARAMETER
;
1636 WidthInByte
= (UINT8
) (0x01 << (Width
& 0x03));
1637 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_POLL
) + (WidthInByte
* 2));
1639 Script
= S3BootScriptGetEntryAddAddress (Length
);
1640 if (Script
== NULL
) {
1641 return RETURN_OUT_OF_RESOURCES
;
1644 // Build script data
1646 ScriptPciPoll
.OpCode
= EFI_BOOT_SCRIPT_PCI_CONFIG_POLL_OPCODE
;
1647 ScriptPciPoll
.Length
= (UINT8
) (sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_POLL
) + (WidthInByte
* 2));
1648 ScriptPciPoll
.Width
= Width
;
1649 ScriptPciPoll
.Address
= Address
;
1650 ScriptPciPoll
.Delay
= Delay
;
1652 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptPciPoll
, sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_POLL
));
1653 CopyMem ((UINT8
*) (Script
+ sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_POLL
)), Data
, WidthInByte
);
1654 CopyMem ((UINT8
*) (Script
+ sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_POLL
) + WidthInByte
), DataMask
, WidthInByte
);
1656 SyncBootScript (Script
);
1658 return RETURN_SUCCESS
;
1661 Adds a record for PCI configuration space reads and continues when the exit criteria is satisfied or
1662 after a defined duration.
1664 @param Width The width of the I/O operations.
1665 @param Segment The PCI segment number for Address.
1666 @param Address The address within the PCI configuration space.
1667 @param Data The comparison value used for the polling exit criteria.
1668 @param DataMask Mask used for the polling criteria. The bits in the bytes below Width which are zero
1669 in Data are ignored when polling the memory address
1670 @param Delay The number of 100ns units to poll. Note that timer available may be of poorer
1671 granularity so the delay may be longer.
1673 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
1674 @retval RETURN_SUCCESS Opcode is added.
1675 @note A known Limitations in the implementation which is non-zero Segment and 64bits operations are not supported.
1680 S3BootScriptSavePci2Poll (
1681 IN S3_BOOT_SCRIPT_LIB_WIDTH Width
,
1692 EFI_BOOT_SCRIPT_PCI_CONFIG2_POLL ScriptPci2Poll
;
1695 Width
== S3BootScriptWidthUint64
||
1696 Width
== S3BootScriptWidthFifoUint64
||
1697 Width
== S3BootScriptWidthFillUint64
) {
1698 return EFI_INVALID_PARAMETER
;
1701 WidthInByte
= (UINT8
) (0x01 << (Width
& 0x03));
1702 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG2_POLL
) + (WidthInByte
* 2));
1704 Script
= S3BootScriptGetEntryAddAddress (Length
);
1705 if (Script
== NULL
) {
1706 return RETURN_OUT_OF_RESOURCES
;
1709 // Build script data
1711 ScriptPci2Poll
.OpCode
= EFI_BOOT_SCRIPT_PCI_CONFIG2_POLL_OPCODE
;
1712 ScriptPci2Poll
.Length
= (UINT8
) (sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG2_POLL
) + (WidthInByte
* 2));
1713 ScriptPci2Poll
.Width
= Width
;
1714 ScriptPci2Poll
.Segment
= Segment
;
1715 ScriptPci2Poll
.Address
= Address
;
1716 ScriptPci2Poll
.Delay
= Delay
;
1718 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptPci2Poll
, sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG2_POLL
));
1719 CopyMem ((UINT8
*) (Script
+ sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG2_POLL
)), Data
, WidthInByte
);
1720 CopyMem ((UINT8
*) (Script
+ sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG2_POLL
) + WidthInByte
), DataMask
, WidthInByte
);
1722 SyncBootScript (Script
);
1724 return RETURN_SUCCESS
;
1727 Do the calculation of start address from which a new s3 boot script entry will write into.
1729 @param EntryLength The new entry length.
1730 @param Position specifies the position in the boot script table where the opcode will be
1731 inserted, either before or after, depending on BeforeOrAfter.
1732 @param BeforeOrAfter The flag to indicate to insert the nod before or after the position.
1733 This parameter is effective when InsertFlag is TRUE
1734 @param Script return out the position from which the a new s3 boot script entry will write into
1737 S3BootScriptCalculateInsertAddress (
1738 IN UINT8 EntryLength
,
1739 IN VOID
*Position OPTIONAL
,
1740 IN BOOLEAN BeforeOrAfter OPTIONAL
,
1746 UINTN PositionOffset
;
1747 EFI_BOOT_SCRIPT_COMMON_HEADER ScriptHeader
;
1749 // The entry inserting to table is already added to the end of the table
1751 TableLength
= mS3BootScriptTablePtr
->TableLength
- EntryLength
;
1752 S3TableBase
= mS3BootScriptTablePtr
->TableBase
;
1754 // calculate the Position offset
1756 if (Position
!= NULL
) {
1757 PositionOffset
= (UINTN
) ((UINT8
*)Position
- S3TableBase
);
1760 // If the BeforeOrAfter is FALSE, that means to insert the node right after the node.
1762 if (!BeforeOrAfter
) {
1763 CopyMem ((VOID
*)&ScriptHeader
, Position
, sizeof(EFI_BOOT_SCRIPT_COMMON_HEADER
));
1764 PositionOffset
+= (ScriptHeader
.Length
);
1767 // Insert the node before the adjusted Position
1769 CopyMem (S3TableBase
+PositionOffset
+EntryLength
, S3TableBase
+PositionOffset
, TableLength
- PositionOffset
);
1771 // calculate the the start address for the new entry.
1773 *Script
= S3TableBase
+ PositionOffset
;
1776 if (!BeforeOrAfter
) {
1778 // Insert the node to the end of the table
1780 *Script
= S3TableBase
+ TableLength
;
1783 // Insert the node to the beginning of the table
1785 PositionOffset
= (UINTN
) sizeof(EFI_BOOT_SCRIPT_TABLE_HEADER
);
1786 CopyMem (S3TableBase
+PositionOffset
+EntryLength
, S3TableBase
+PositionOffset
, TableLength
- PositionOffset
);
1787 *Script
= S3TableBase
+ PositionOffset
;
1792 Move the last boot script entry to the position
1794 @param BeforeOrAfter Specifies whether the opcode is stored before (TRUE) or after (FALSE) the position
1795 in the boot script table specified by Position. If Position is NULL or points to
1796 NULL then the new opcode is inserted at the beginning of the table (if TRUE) or end
1797 of the table (if FALSE).
1798 @param Position On entry, specifies the position in the boot script table where the opcode will be
1799 inserted, either before or after, depending on BeforeOrAfter. On exit, specifies
1800 the position of the inserted opcode in the boot script table.
1802 @retval RETURN_OUT_OF_RESOURCES The table is not available.
1803 @retval RETURN_INVALID_PARAMETER The Position is not a valid position in the boot script table.
1804 @retval RETURN_SUCCESS Opcode is inserted.
1808 S3BootScriptMoveLastOpcode (
1809 IN BOOLEAN BeforeOrAfter
,
1810 IN OUT VOID
**Position OPTIONAL
1817 EFI_BOOT_SCRIPT_COMMON_HEADER ScriptHeader
;
1818 BOOLEAN ValidatePosition
;
1820 UINT8 TempBootScriptEntry
[BOOT_SCRIPT_NODE_MAX_LENGTH
];
1822 ValidatePosition
= FALSE
;
1823 TempPosition
= (Position
== NULL
) ? NULL
:(*Position
);
1826 // Check that the script is initialized and synced without adding an entry to the script.
1828 Script
= S3BootScriptGetEntryAddAddress (0);
1829 if (Script
== NULL
) {
1830 return RETURN_OUT_OF_RESOURCES
;
1832 Script
= mS3BootScriptTablePtr
->TableBase
;
1834 StartAddress
= (UINTN
) Script
;
1835 TableLength
= mS3BootScriptTablePtr
->TableLength
;
1836 Script
= Script
+ sizeof(EFI_BOOT_SCRIPT_TABLE_HEADER
);
1837 LastOpcode
= Script
;
1839 // Find the last boot Script Entry which is not the terminate node
1841 while ((UINTN
) Script
< (UINTN
) (StartAddress
+ TableLength
)) {
1842 CopyMem ((VOID
*)&ScriptHeader
, Script
, sizeof(EFI_BOOT_SCRIPT_COMMON_HEADER
));
1843 if (TempPosition
!= NULL
&& TempPosition
== Script
) {
1845 // If the position is specified, the position must be pointed to a boot script entry start address.
1847 ValidatePosition
= TRUE
;
1849 if (ScriptHeader
.OpCode
!= S3_BOOT_SCRIPT_LIB_TERMINATE_OPCODE
) {
1850 LastOpcode
= Script
;
1852 Script
= Script
+ ScriptHeader
.Length
;
1855 // If the position is specified, but not the start of a boot script entry, it is a invalid input
1857 if (TempPosition
!= NULL
&& !ValidatePosition
) {
1858 return RETURN_INVALID_PARAMETER
;
1861 CopyMem ((VOID
*)&ScriptHeader
, LastOpcode
, sizeof(EFI_BOOT_SCRIPT_COMMON_HEADER
));
1863 CopyMem((VOID
*)TempBootScriptEntry
, LastOpcode
, ScriptHeader
.Length
);
1865 // Find the right position to write the node in
1867 S3BootScriptCalculateInsertAddress (
1868 ScriptHeader
.Length
,
1874 // Copy the node to Boot script table
1876 CopyMem((VOID
*)Script
, (VOID
*)TempBootScriptEntry
, ScriptHeader
.Length
);
1878 SyncBootScript (Script
);
1881 // return out the Position
1883 if (Position
!= NULL
) {
1886 return RETURN_SUCCESS
;
1889 Create a Label node in the boot script table.
1891 @param BeforeOrAfter Specifies whether the opcode is stored before (TRUE) or after (FALSE) the position
1892 in the boot script table specified by Position. If Position is NULL or points to
1893 NULL then the new opcode is inserted at the beginning of the table (if TRUE) or end
1894 of the table (if FALSE).
1895 @param Position On entry, specifies the position in the boot script table where the opcode will be
1896 inserted, either before or after, depending on BeforeOrAfter. On exit, specifies
1897 the position of the inserted opcode in the boot script table.
1898 @param InformationLength Length of the label in bytes
1899 @param Information Label to be logged in the boot scrpit
1901 @retval RETURN_INVALID_PARAMETER The Position is not a valid position in the boot script table.
1902 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
1903 @retval RETURN_SUCCESS Opcode is added.
1908 S3BootScriptLabelInternal (
1909 IN BOOLEAN BeforeOrAfter
,
1910 IN OUT VOID
**Position OPTIONAL
,
1911 IN UINT32 InformationLength
,
1912 IN CONST CHAR8
*Information
1917 EFI_BOOT_SCRIPT_INFORMATION ScriptInformation
;
1919 Length
= (UINT8
)(sizeof (EFI_BOOT_SCRIPT_INFORMATION
) + InformationLength
);
1921 Script
= S3BootScriptGetEntryAddAddress (Length
);
1922 if (Script
== NULL
) {
1923 return RETURN_OUT_OF_RESOURCES
;
1926 // Build script data
1928 ScriptInformation
.OpCode
= S3_BOOT_SCRIPT_LIB_LABEL_OPCODE
;
1929 ScriptInformation
.Length
= Length
;
1932 ScriptInformation
.InformationLength
= InformationLength
;
1934 CopyMem ((VOID
*)Script
, (VOID
*)&ScriptInformation
, sizeof (EFI_BOOT_SCRIPT_INFORMATION
));
1935 CopyMem ((VOID
*)(Script
+ sizeof (EFI_BOOT_SCRIPT_INFORMATION
)), (VOID
*) Information
, (UINTN
) InformationLength
);
1937 SyncBootScript (Script
);
1939 return S3BootScriptMoveLastOpcode (BeforeOrAfter
, Position
);
1943 Find a label within the boot script table and, if not present, optionally create it.
1945 @param BeforeOrAfter Specifies whether the opcode is stored before (TRUE)
1946 or after (FALSE) the position in the boot script table
1947 specified by Position.
1948 @param CreateIfNotFound Specifies whether the label will be created if the label
1949 does not exists (TRUE) or not (FALSE).
1950 @param Position On entry, specifies the position in the boot script table
1951 where the opcode will be inserted, either before or after,
1952 depending on BeforeOrAfter. On exit, specifies the position
1953 of the inserted opcode in the boot script table.
1954 @param Label Points to the label which will be inserted in the boot script table.
1956 @retval EFI_SUCCESS The operation succeeded. A record was added into the
1957 specified script table.
1958 @retval EFI_INVALID_PARAMETER The parameter is illegal or the given boot script is not supported.
1959 If the opcode is unknow or not supported because of the PCD
1961 @retval EFI_OUT_OF_RESOURCES There is insufficient memory to store the boot script.
1967 IN BOOLEAN BeforeOrAfter
,
1968 IN BOOLEAN CreateIfNotFound
,
1969 IN OUT VOID
**Position OPTIONAL
,
1970 IN CONST CHAR8
*Label
1976 EFI_BOOT_SCRIPT_COMMON_HEADER ScriptHeader
;
1977 EFI_BOOT_SCRIPT_TABLE_HEADER TableHeader
;
1982 if (Label
== NULL
) {
1983 return EFI_INVALID_PARAMETER
;
1986 // Check empty Label
1988 if (Label
[0] == '\0') {
1989 return EFI_INVALID_PARAMETER
;
1993 // Check that the script is initialized and synced without adding an entry to the script.
1994 // The code must search for the label first before it knows if a new entry needs
1997 Script
= S3BootScriptGetEntryAddAddress (0);
1998 if (Script
== NULL
) {
1999 return RETURN_OUT_OF_RESOURCES
;
2003 // Check the header and search for existing label.
2005 Script
= mS3BootScriptTablePtr
->TableBase
;
2006 CopyMem ((VOID
*)&TableHeader
, Script
, sizeof(EFI_BOOT_SCRIPT_TABLE_HEADER
));
2007 if (TableHeader
.OpCode
!= S3_BOOT_SCRIPT_LIB_TABLE_OPCODE
) {
2008 return EFI_INVALID_PARAMETER
;
2010 StartAddress
= (UINTN
) Script
;
2011 TableLength
= mS3BootScriptTablePtr
->TableLength
;
2012 Script
= Script
+ TableHeader
.Length
;
2013 while ((UINTN
) Script
< (UINTN
) (StartAddress
+ TableLength
)) {
2015 CopyMem ((VOID
*)&ScriptHeader
, Script
, sizeof(EFI_BOOT_SCRIPT_COMMON_HEADER
));
2016 if (ScriptHeader
.OpCode
== S3_BOOT_SCRIPT_LIB_LABEL_OPCODE
) {
2017 if (AsciiStrCmp ((CHAR8
*)(UINTN
)(Script
+sizeof(EFI_BOOT_SCRIPT_INFORMATION
)), Label
) == 0) {
2018 (*Position
) = Script
;
2022 Script
= Script
+ ScriptHeader
.Length
;
2024 if (CreateIfNotFound
) {
2025 LabelLength
= (UINT32
)AsciiStrSize(Label
);
2026 return S3BootScriptLabelInternal (BeforeOrAfter
,Position
, LabelLength
, Label
);
2028 return EFI_NOT_FOUND
;
2033 Compare two positions in the boot script table and return their relative position.
2034 @param Position1 The positions in the boot script table to compare
2035 @param Position2 The positions in the boot script table to compare
2036 @param RelativePosition On return, points to the result of the comparison
2038 @retval EFI_SUCCESS The operation succeeded. A record was added into the
2039 specified script table.
2040 @retval EFI_INVALID_PARAMETER The parameter is illegal or the given boot script is not supported.
2041 If the opcode is unknow or not supported because of the PCD
2043 @retval EFI_OUT_OF_RESOURCES There is insufficient memory to store the boot script.
2048 S3BootScriptCompare (
2049 IN UINT8
*Position1
,
2050 IN UINT8
*Position2
,
2051 OUT UINTN
*RelativePosition
2057 if (RelativePosition
== NULL
) {
2058 return EFI_INVALID_PARAMETER
;
2062 // Check that the script is initialized and synced without adding an entry to the script.
2064 Script
= S3BootScriptGetEntryAddAddress (0);
2065 if (Script
== NULL
) {
2066 return RETURN_OUT_OF_RESOURCES
;
2068 Script
= mS3BootScriptTablePtr
->TableBase
;
2071 // mS3BootScriptTablePtr->TableLength does not include the termination node, so add it up
2073 TableLength
= mS3BootScriptTablePtr
->TableLength
+ sizeof (EFI_BOOT_SCRIPT_TERMINATE
);
2074 if (Position1
< Script
|| Position1
> Script
+TableLength
) {
2075 return EFI_INVALID_PARAMETER
;
2077 if (Position2
< Script
|| Position2
> Script
+TableLength
) {
2078 return EFI_INVALID_PARAMETER
;
2080 *RelativePosition
= (Position1
< Position2
)?-1:((Position1
== Position2
)?0:1);