/** @file\r
\r
-Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions\r
\r
extern BBS_TABLE *mBbsTable;\r
\r
+extern VOID *mRuntimeSmbiosEntryPoint;\r
+extern EFI_PHYSICAL_ADDRESS mReserveSmbiosEntryPoint;\r
+extern EFI_PHYSICAL_ADDRESS mStructureTableAddress;\r
+\r
/**\r
Print the BBS Table.\r
\r
//\r
// Print DescString\r
//\r
- String = (CHAR8 *)(UINTN)((BbsTable[Index].DescStringSegment << 4) + BbsTable[Index].DescStringOffset);\r
+ String = (CHAR8 *)(((UINTN)BbsTable[Index].DescStringSegment << 4) + BbsTable[Index].DescStringOffset);\r
if (String != NULL) {\r
DEBUG ((EFI_D_INFO," ("));\r
for (SubIndex = 0; String[SubIndex] != 0; SubIndex++) {\r
return EFI_SUCCESS;\r
}\r
\r
+/**\r
+ Copy SMBIOS table to EfiReservedMemoryType of memory for legacy boot.\r
+\r
+**/\r
+VOID\r
+CreateSmbiosTableInReservedMemory (\r
+ VOID\r
+ )\r
+{\r
+ SMBIOS_TABLE_ENTRY_POINT *EntryPointStructure;\r
+\r
+ if ((mRuntimeSmbiosEntryPoint == NULL) ||\r
+ (mReserveSmbiosEntryPoint == 0) ||\r
+ (mStructureTableAddress == 0)) {\r
+ return;\r
+ }\r
+\r
+ EntryPointStructure = (SMBIOS_TABLE_ENTRY_POINT *) mRuntimeSmbiosEntryPoint;\r
+\r
+ //\r
+ // Copy SMBIOS Entry Point Structure\r
+ //\r
+ CopyMem (\r
+ (VOID *)(UINTN) mReserveSmbiosEntryPoint,\r
+ EntryPointStructure,\r
+ EntryPointStructure->EntryPointLength\r
+ );\r
+\r
+ //\r
+ // Copy SMBIOS Structure Table into EfiReservedMemoryType memory\r
+ //\r
+ CopyMem (\r
+ (VOID *)(UINTN) mStructureTableAddress,\r
+ (VOID *)(UINTN) EntryPointStructure->TableAddress,\r
+ EntryPointStructure->TableLength\r
+ );\r
+\r
+ //\r
+ // Update TableAddress in Entry Point Structure\r
+ //\r
+ EntryPointStructure = (SMBIOS_TABLE_ENTRY_POINT *)(UINTN) mReserveSmbiosEntryPoint;\r
+ EntryPointStructure->TableAddress = (UINT32)(UINTN) mStructureTableAddress;\r
+\r
+ //\r
+ // Fixup checksums in the Entry Point Structure\r
+ //\r
+ EntryPointStructure->IntermediateChecksum = 0;\r
+ EntryPointStructure->EntryPointStructureChecksum = 0;\r
+\r
+ EntryPointStructure->IntermediateChecksum =\r
+ CalculateCheckSum8 (\r
+ (UINT8 *) EntryPointStructure + OFFSET_OF (SMBIOS_TABLE_ENTRY_POINT, IntermediateAnchorString),\r
+ EntryPointStructure->EntryPointLength - OFFSET_OF (SMBIOS_TABLE_ENTRY_POINT, IntermediateAnchorString)\r
+ );\r
+ EntryPointStructure->EntryPointStructureChecksum =\r
+ CalculateCheckSum8 ((UINT8 *) EntryPointStructure, EntryPointStructure->EntryPointLength);\r
+}\r
\r
/**\r
Assign drive number to legacy HDD drives prior to booting an EFI\r
EFI_HANDLE IdeController;\r
UINTN HandleCount;\r
EFI_HANDLE *HandleBuffer;\r
- VOID *SmbiosTable;\r
VOID *AcpiTable;\r
UINTN ShadowAddress;\r
UINT32 Granularity;\r
\r
EfiToLegacy16BootTable->MajorVersion = EFI_TO_LEGACY_MAJOR_VERSION;\r
EfiToLegacy16BootTable->MinorVersion = EFI_TO_LEGACY_MINOR_VERSION;\r
- \r
+\r
//\r
// If booting to a legacy OS then force HDD drives to the appropriate\r
// boot mode by calling GetIdeHandle.\r
);\r
if (!EFI_ERROR (Status)) {\r
IdeController = HandleBuffer[0];\r
- } \r
+ }\r
}\r
//\r
// Unlock the Legacy BIOS region\r
);\r
Private->Legacy16Table->E820Length = (UINT32) CopySize;\r
}\r
- //\r
- // Get SMBIOS and ACPI table pointers\r
- //\r
- SmbiosTable = NULL;\r
- EfiGetSystemConfigurationTable (\r
- &gEfiSmbiosTableGuid,\r
- &SmbiosTable\r
- );\r
+\r
//\r
// We do not ASSERT if SmbiosTable not found. It is possbile that a platform does not produce SmbiosTable.\r
//\r
- if (SmbiosTable == NULL) {\r
+ if (mReserveSmbiosEntryPoint == 0) {\r
DEBUG ((EFI_D_INFO, "Smbios table is not found!\n"));\r
}\r
- EfiToLegacy16BootTable->SmbiosTable = (UINT32)(UINTN)SmbiosTable;\r
+ CreateSmbiosTableInReservedMemory ();\r
+ EfiToLegacy16BootTable->SmbiosTable = (UINT32)(UINTN)mReserveSmbiosEntryPoint;\r
\r
AcpiTable = NULL;\r
Status = EfiGetSystemConfigurationTable (\r
//\r
// Setup BDA and EBDA standard areas before Legacy Boot\r
//\r
- LegacyBiosCompleteBdaBeforeBoot (Private);\r
+ ACCESS_PAGE0_CODE (\r
+ LegacyBiosCompleteBdaBeforeBoot (Private);\r
+ );\r
LegacyBiosCompleteStandardCmosBeforeBoot (Private);\r
\r
//\r
// Use 182/10 to avoid floating point math.\r
//\r
LocalTime = (LocalTime * 182) / 10;\r
- BdaPtr = (UINT32 *) (UINTN)0x46C;\r
- *BdaPtr = LocalTime;\r
+ ACCESS_PAGE0_CODE (\r
+ BdaPtr = (UINT32 *) (UINTN)0x46C;\r
+ *BdaPtr = LocalTime;\r
+ );\r
\r
//\r
// Shadow PCI ROMs. We must do this near the end since this will kick\r
0x40000,\r
&Granularity\r
);\r
+\r
+ if ((Private->Legacy16Table->TableLength >= OFFSET_OF (EFI_COMPATIBILITY16_TABLE, HiPermanentMemoryAddress)) &&\r
+ ((Private->Legacy16Table->UmaAddress != 0) && (Private->Legacy16Table->UmaSize != 0))) {\r
+ //\r
+ // Here we could reduce UmaAddress down as far as Private->OptionRom, taking into\r
+ // account the granularity of the access control.\r
+ //\r
+ DEBUG((EFI_D_INFO, "Unlocking UMB RAM region 0x%x-0x%x\n", Private->Legacy16Table->UmaAddress,\r
+ Private->Legacy16Table->UmaAddress + Private->Legacy16Table->UmaSize));\r
+\r
+ Private->LegacyRegion->UnLock (\r
+ Private->LegacyRegion,\r
+ Private->Legacy16Table->UmaAddress,\r
+ Private->Legacy16Table->UmaSize,\r
+ &Granularity\r
+ );\r
+ }\r
+\r
//\r
// Lock attributes of the Legacy Region if chipset supports\r
//\r
//\r
EnableAllControllers (Private);\r
if ((mBootMode == BOOT_LEGACY_OS) || (mBootMode == BOOT_UNCONVENTIONAL_DEVICE)) {\r
+\r
//\r
- // Report Status Code to indicate legacy boot event will be signalled\r
+ // Signal all the events that are waiting on EVT_SIGNAL_LEGACY_BOOT\r
+ //\r
+ EfiSignalEventLegacyBoot ();\r
+\r
+ //\r
+ // Report Status Code to indicate legacy boot event was signalled\r
//\r
REPORT_STATUS_CODE (\r
EFI_PROGRESS_CODE,\r
(EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_DXE_BS_PC_LEGACY_BOOT_EVENT)\r
);\r
\r
- //\r
- // Signal all the events that are waiting on EVT_SIGNAL_LEGACY_BOOT\r
- //\r
- EfiSignalEventLegacyBoot ();\r
DEBUG ((EFI_D_INFO, "Legacy INT19 Boot...\n"));\r
\r
//\r
// Disable DXE Timer while executing in real mode\r
//\r
Private->Timer->SetTimerPeriod (Private->Timer, 0);\r
- \r
+\r
//\r
// Save and disable interrupt of debug timer\r
//\r
// set of TIANO vectors) or takes it over.\r
//\r
//\r
- BaseVectorMaster = (UINT32 *) (sizeof (UINT32) * PROTECTED_MODE_BASE_VECTOR_MASTER);\r
- for (Index = 0; Index < 8; Index++) {\r
- Private->ThunkSavedInt[Index] = BaseVectorMaster[Index];\r
- if (Private->ThunkSeg == (UINT16) (BaseVectorMaster[Index] >> 16)) {\r
- BaseVectorMaster[Index] = (UINT32) (Private->BiosUnexpectedInt);\r
+ ACCESS_PAGE0_CODE (\r
+ BaseVectorMaster = (UINT32 *) (sizeof (UINT32) * PROTECTED_MODE_BASE_VECTOR_MASTER);\r
+ for (Index = 0; Index < 8; Index++) {\r
+ Private->ThunkSavedInt[Index] = BaseVectorMaster[Index];\r
+ if (Private->ThunkSeg == (UINT16) (BaseVectorMaster[Index] >> 16)) {\r
+ BaseVectorMaster[Index] = (UINT32) (Private->BiosUnexpectedInt);\r
+ }\r
}\r
- }\r
+ );\r
\r
ZeroMem (&Regs, sizeof (EFI_IA32_REGISTER_SET));\r
Regs.X.AX = Legacy16Boot;\r
0\r
);\r
\r
- BaseVectorMaster = (UINT32 *) (sizeof (UINT32) * PROTECTED_MODE_BASE_VECTOR_MASTER);\r
- for (Index = 0; Index < 8; Index++) {\r
- BaseVectorMaster[Index] = Private->ThunkSavedInt[Index];\r
- }\r
+ ACCESS_PAGE0_CODE (\r
+ BaseVectorMaster = (UINT32 *) (sizeof (UINT32) * PROTECTED_MODE_BASE_VECTOR_MASTER);\r
+ for (Index = 0; Index < 8; Index++) {\r
+ BaseVectorMaster[Index] = Private->ThunkSavedInt[Index];\r
+ }\r
+ );\r
}\r
Private->LegacyBootEntered = TRUE;\r
if ((mBootMode == BOOT_LEGACY_OS) || (mBootMode == BOOT_UNCONVENTIONAL_DEVICE)) {\r
}\r
\r
UcdTable = (UD_TABLE *) AllocatePool (\r
- sizeof (UD_TABLE)\r
- );\r
+ sizeof (UD_TABLE)\r
+ );\r
if (NULL == UcdTable) {\r
return EFI_OUT_OF_RESOURCES;\r
}\r
case EfiBootServicesCode:\r
case EfiBootServicesData:\r
case EfiConventionalMemory:\r
+ //\r
+ // The memory of EfiRuntimeServicesCode and EfiRuntimeServicesData are\r
+ // usable memory for legacy OS, because legacy OS is not aware of EFI runtime concept.\r
+ // In ACPI specification, EfiRuntimeServiceCode and EfiRuntimeServiceData\r
+ // should be mapped to AddressRangeReserved. This statement is for UEFI OS, not for legacy OS.\r
+ //\r
case EfiRuntimeServicesCode:\r
case EfiRuntimeServicesData:\r
return EfiAcpiAddressRangeMemory;\r
\r
+ case EfiPersistentMemory:\r
+ return EfiAddressRangePersistentMemory;\r
+\r
case EfiACPIReclaimMemory:\r
return EfiAcpiAddressRangeACPI;\r
\r
//\r
// First entry is 0 to (640k - EBDA)\r
//\r
- E820Table[0].BaseAddr = 0;\r
- E820Table[0].Length = (UINT64) ((*(UINT16 *) (UINTN)0x40E) << 4);\r
- E820Table[0].Type = EfiAcpiAddressRangeMemory;\r
+ ACCESS_PAGE0_CODE (\r
+ E820Table[0].BaseAddr = 0;\r
+ E820Table[0].Length = (UINT64) ((*(UINT16 *) (UINTN)0x40E) << 4);\r
+ E820Table[0].Type = EfiAcpiAddressRangeMemory;\r
+ );\r
\r
//\r
// Second entry is (640k - EBDA) to 640k\r
UINT8 LocalLeds;\r
EFI_IA32_REGISTER_SET Regs;\r
\r
- Bda = (BDA_STRUC *) ((UINTN) 0x400);\r
-\r
Private = LEGACY_BIOS_INSTANCE_FROM_THIS (This);\r
- LocalLeds = Leds;\r
- Bda->LedStatus = (UINT8) ((Bda->LedStatus &~0x07) | LocalLeds);\r
- LocalLeds = (UINT8) (LocalLeds << 4);\r
- Bda->ShiftStatus = (UINT8) ((Bda->ShiftStatus &~0x70) | LocalLeds);\r
- LocalLeds = (UINT8) (Leds & 0x20);\r
- Bda->KeyboardStatus = (UINT8) ((Bda->KeyboardStatus &~0x20) | LocalLeds);\r
+\r
+ ACCESS_PAGE0_CODE (\r
+ Bda = (BDA_STRUC *) ((UINTN) 0x400);\r
+ LocalLeds = Leds;\r
+ Bda->LedStatus = (UINT8) ((Bda->LedStatus &~0x07) | LocalLeds);\r
+ LocalLeds = (UINT8) (LocalLeds << 4);\r
+ Bda->ShiftStatus = (UINT8) ((Bda->ShiftStatus &~0x70) | LocalLeds);\r
+ LocalLeds = (UINT8) (Leds & 0x20);\r
+ Bda->KeyboardStatus = (UINT8) ((Bda->KeyboardStatus &~0x20) | LocalLeds);\r
+ );\r
+\r
//\r
// Call into Legacy16 code to allow it to do any processing\r
//\r
// to large capacity drives\r
// CMOS 14 = BDA 40:10 plus bit 3(display enabled)\r
//\r
- Bda = (UINT8)(*((UINT8 *)((UINTN)0x410)) | BIT3);\r
+ ACCESS_PAGE0_CODE (\r
+ Bda = (UINT8)(*((UINT8 *)((UINTN)0x410)) | BIT3);\r
+ );\r
\r
//\r
// Force display enabled\r
//\r
// redo memory size since it can change\r
//\r
- Size = 15 * SIZE_1MB;\r
+ Size = (15 * SIZE_1MB) >> 10;\r
if (Private->IntThunk->EfiToLegacy16InitTable.OsMemoryAbove1Mb < (15 * SIZE_1MB)) {\r
Size = Private->IntThunk->EfiToLegacy16InitTable.OsMemoryAbove1Mb >> 10;\r
}\r
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