diff options
Diffstat (limited to 'Nt32Pkg/PlatformBdsDxe/Generic/BootMaint/BBSsupport.c')
| -rw-r--r-- | Nt32Pkg/PlatformBdsDxe/Generic/BootMaint/BBSsupport.c | 1601 |
1 files changed, 0 insertions, 1601 deletions
diff --git a/Nt32Pkg/PlatformBdsDxe/Generic/BootMaint/BBSsupport.c b/Nt32Pkg/PlatformBdsDxe/Generic/BootMaint/BBSsupport.c deleted file mode 100644 index 37c0475ba7..0000000000 --- a/Nt32Pkg/PlatformBdsDxe/Generic/BootMaint/BBSsupport.c +++ /dev/null @@ -1,1601 +0,0 @@ -/*++
-
-Copyright (c) 2006 - 2007, Intel Corporation
-All rights reserved. This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-Module Name:
-
- BBSsupport.c
-
-Abstract:
-
- This function deal with the legacy boot option, it create, delete
- and manage the legacy boot option, all legacy boot option is getting from
- the legacy BBS table.
-
---*/
-
-#include "BBSsupport.h"
-
-EFI_DEVICE_PATH_PROTOCOL EndDevicePath[] = {
- END_DEVICE_PATH_TYPE,
- END_ENTIRE_DEVICE_PATH_SUBTYPE,
- END_DEVICE_PATH_LENGTH,
- 0
-};
-
-VOID
-AsciiToUnicodeSize (
- IN UINT8 *a,
- IN UINTN Size,
- OUT UINT16 *u
- )
-/*++
-
- Routine Description:
-
- Translate the first n characters of an Ascii string to
- Unicode characters. The count n is indicated by parameter
- Size. If Size is greater than the length of string, then
- the entire string is translated.
-
- Arguments:
-
- a - Pointer to input Ascii string.
- Size - The number of characters to translate.
- u - Pointer to output Unicode string buffer.
-
- Returns:
-
- None
-
---*/
-{
- UINTN i;
-
- i = 0;
- while (a[i] != 0) {
- u[i] = (CHAR16) a[i];
- if (i == Size) {
- break;
- }
-
- i++;
- }
- u[i] = 0;
-}
-
-VOID
-BdsBuildLegacyDevNameString (
- IN BBS_TABLE *CurBBSEntry,
- IN UINTN Index,
- IN UINTN BufSize,
- OUT CHAR16 *BootString
- )
-{
- CHAR16 *Fmt;
- CHAR16 *Type;
- UINT8 *StringDesc;
- CHAR16 temp[80];
-
- switch (Index) {
- //
- // Primary Master
- //
- case 1:
- Fmt = L"Primary Master %s";
- break;
-
- //
- // Primary Slave
- //
- case 2:
- Fmt = L"Primary Slave %s";
- break;
-
- //
- // Secondary Master
- //
- case 3:
- Fmt = L"Secondary Master %s";
- break;
-
- //
- // Secondary Slave
- //
- case 4:
- Fmt = L"Secondary Slave %s";
- break;
-
- default:
- Fmt = L"%s";
- break;
- }
-
- switch (CurBBSEntry->DeviceType) {
- case BBS_FLOPPY:
- Type = L"Floppy";
- break;
-
- case BBS_HARDDISK:
- Type = L"Harddisk";
- break;
-
- case BBS_CDROM:
- Type = L"CDROM";
- break;
-
- case BBS_PCMCIA:
- Type = L"PCMCIAe";
- break;
-
- case BBS_USB:
- Type = L"USB";
- break;
-
- case BBS_EMBED_NETWORK:
- Type = L"Network";
- break;
-
- case BBS_BEV_DEVICE:
- Type = L"BEVe";
- break;
-
- case BBS_UNKNOWN:
- default:
- Type = L"Unknown";
- break;
- }
- //
- // If current BBS entry has its description then use it.
- //
- StringDesc = (UINT8 *) (UINTN) ((CurBBSEntry->DescStringSegment << 4) + CurBBSEntry->DescStringOffset);
- if (NULL != StringDesc) {
- //
- // Only get fisrt 32 characters, this is suggested by BBS spec
- //
- AsciiToUnicodeSize (StringDesc, 32, temp);
- Fmt = L"%s";
- Type = temp;
- }
-
- UnicodeSPrint (BootString, BufSize, Fmt, Type);
-}
-
-EFI_STATUS
-BdsCreateLegacyBootOption (
- IN BBS_TABLE *CurrentBbsEntry,
- IN EFI_DEVICE_PATH_PROTOCOL *CurrentBbsDevPath,
- IN UINTN Index,
- IN OUT UINT16 **BootOrderList,
- IN OUT UINTN *BootOrderListSize
- )
-/*++
-
- Routine Description:
-
- Create a legacy boot option for the specified entry of
- BBS table, save it as variable, and append it to the boot
- order list.
-
- Arguments:
-
- CurrentBbsEntry - Pointer to current BBS table.
- CurrentBbsDevPath - Pointer to the Device Path Protocol instance of BBS
- Index - Index of the specified entry in BBS table.
- BootOrderList - On input, the original boot order list.
- On output, the new boot order list attached with the
- created node.
- BootOrderListSize - On input, the original size of boot order list.
- - On output, the size of new boot order list.
-
- Returns:
-
- EFI_SUCCESS - Boot Option successfully created.
- EFI_OUT_OF_RESOURCES - Fail to allocate necessary memory.
- Other - Error occurs while setting variable.
-
---*/
-{
- EFI_STATUS Status;
- UINT16 CurrentBootOptionNo;
- UINT16 BootString[10];
- UINT16 BootDesc[100];
- UINT16 *NewBootOrderList;
- UINTN BufferSize;
- VOID *Buffer;
- UINT8 *Ptr;
- UINT16 CurrentBbsDevPathSize;
- UINTN BootOrderIndex;
- UINTN BootOrderLastIndex;
- UINTN ArrayIndex;
- BOOLEAN IndexNotFound;
-
- if (NULL == (*BootOrderList)) {
- CurrentBootOptionNo = 0;
- } else {
- for (ArrayIndex = 0; ArrayIndex < (UINTN) (*BootOrderListSize / sizeof (UINT16)); ArrayIndex++) {
- IndexNotFound = TRUE;
- for (BootOrderIndex = 0; BootOrderIndex < (UINTN) (*BootOrderListSize / sizeof (UINT16)); BootOrderIndex++) {
- if ((*BootOrderList)[BootOrderIndex] == ArrayIndex) {
- IndexNotFound = FALSE;
- break;
- }
- }
-
- if (!IndexNotFound) {
- continue;
- } else {
- break;
- }
- }
-
- CurrentBootOptionNo = (UINT16) ArrayIndex;
- }
-
- UnicodeSPrint (
- BootString,
- sizeof (BootString),
- L"Boot%04x",
- CurrentBootOptionNo
- );
-
- BdsBuildLegacyDevNameString (CurrentBbsEntry, Index, sizeof (BootDesc), BootDesc);
-
- CurrentBbsDevPathSize = (UINT16) (GetDevicePathSize (CurrentBbsDevPath));
-
- BufferSize = sizeof (UINT32) +
- sizeof (UINT16) +
- StrSize (BootDesc) +
- CurrentBbsDevPathSize +
- sizeof (BBS_TABLE) +
- sizeof (UINT16);
-
- Buffer = AllocateZeroPool (BufferSize);
- if (Buffer == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- Ptr = (UINT8 *) Buffer;
-
- *((UINT32 *) Ptr) = LOAD_OPTION_ACTIVE;
- Ptr += sizeof (UINT32);
-
- *((UINT16 *) Ptr) = CurrentBbsDevPathSize;
- Ptr += sizeof (UINT16);
-
- CopyMem (
- Ptr,
- BootDesc,
- StrSize (BootDesc)
- );
- Ptr += StrSize (BootDesc);
-
- CopyMem (
- Ptr,
- CurrentBbsDevPath,
- CurrentBbsDevPathSize
- );
- Ptr += CurrentBbsDevPathSize;
-
- CopyMem (
- Ptr,
- CurrentBbsEntry,
- sizeof (BBS_TABLE)
- );
-
- Ptr += sizeof (BBS_TABLE);
- *((UINT16 *) Ptr) = (UINT16) Index;
-
- Status = gRT->SetVariable (
- BootString,
- &gEfiGlobalVariableGuid,
- VAR_FLAG,
- BufferSize,
- Buffer
- );
-
- SafeFreePool (Buffer);
- Buffer = NULL;
-
- NewBootOrderList = AllocateZeroPool (*BootOrderListSize + sizeof (UINT16));
- if (NULL == NewBootOrderList) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- if (NULL != *BootOrderList) {
- CopyMem (NewBootOrderList, *BootOrderList, *BootOrderListSize);
- }
-
- SafeFreePool (*BootOrderList);
-
- BootOrderLastIndex = (UINTN) (*BootOrderListSize / sizeof (UINT16));
- NewBootOrderList[BootOrderLastIndex] = CurrentBootOptionNo;
- *BootOrderListSize += sizeof (UINT16);
- *BootOrderList = NewBootOrderList;
-
- return Status;
-}
-
-BOOLEAN
-BdsIsLegacyBootOption (
- IN UINT8 *BootOptionVar,
- OUT BBS_TABLE **BbsEntry,
- OUT UINT16 *BbsIndex
- )
-{
- UINT8 *Ptr;
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- BOOLEAN Ret;
- UINT16 DevPathLen;
-
- Ptr = BootOptionVar;
- Ptr += sizeof (UINT32);
- DevPathLen = *(UINT16 *) Ptr;
- Ptr += sizeof (UINT16);
- Ptr += StrSize ((UINT16 *) Ptr);
- DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) Ptr;
- if ((BBS_DEVICE_PATH == DevicePath->Type) && (BBS_BBS_DP == DevicePath->SubType)) {
- Ptr += DevPathLen;
- *BbsEntry = (BBS_TABLE *) Ptr;
- Ptr += sizeof (BBS_TABLE);
- *BbsIndex = *(UINT16 *) Ptr;
- Ret = TRUE;
- } else {
- *BbsEntry = NULL;
- Ret = FALSE;
- }
-
- return Ret;
-}
-
-EFI_STATUS
-BdsDeleteBootOption (
- IN UINTN OptionNumber,
- IN OUT UINT16 *BootOrder,
- IN OUT UINTN *BootOrderSize
- )
-{
- UINT16 BootOption[100];
- UINTN Index;
- EFI_STATUS Status;
- UINTN Index2Del;
-
- Status = EFI_SUCCESS;
- Index2Del = 0;
-
- UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", OptionNumber);
- Status = EfiLibDeleteVariable (BootOption, &gEfiGlobalVariableGuid);
- //
- // adjust boot order array
- //
- for (Index = 0; Index < *BootOrderSize / sizeof (UINT16); Index++) {
- if (BootOrder[Index] == OptionNumber) {
- Index2Del = Index;
- break;
- }
- }
-
- if (Index != *BootOrderSize / sizeof (UINT16)) {
- for (Index = 0; Index < *BootOrderSize / sizeof (UINT16) - 1; Index++) {
- if (Index >= Index2Del) {
- BootOrder[Index] = BootOrder[Index + 1];
- }
- }
-
- *BootOrderSize -= sizeof (UINT16);
- }
-
- return Status;
-
-}
-
-EFI_STATUS
-BdsDeleteAllInvalidLegacyBootOptions (
- VOID
- )
-/*++
-
- Routine Description:
-
- Delete all the invalid legacy boot options.
-
- Arguments:
-
- None.
-
- Returns:
-
- EFI_SUCCESS - All invalide legacy boot options are deleted.
- EFI_OUT_OF_RESOURCES - Fail to allocate necessary memory.
- EFI_NOT_FOUND - Fail to retrive variable of boot order.
- Other - Error occurs while setting variable or locating
- protocol.
-
---*/
-{
- UINT16 *BootOrder;
- UINT8 *BootOptionVar;
- UINTN BootOrderSize;
- UINTN BootOptionSize;
- EFI_STATUS Status;
- UINT16 HddCount;
- UINT16 BbsCount;
- HDD_INFO *LocalHddInfo;
- BBS_TABLE *LocalBbsTable;
- BBS_TABLE *BbsEntry;
- UINT16 BbsIndex;
- EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;
- UINTN Index;
- UINT16 BootOption[10];
- UINT16 BootDesc[100];
- BOOLEAN DescStringMatch;
-
- Status = EFI_SUCCESS;
- BootOrder = NULL;
- BootOrderSize = 0;
- HddCount = 0;
- BbsCount = 0;
- LocalHddInfo = NULL;
- LocalBbsTable = NULL;
- BbsEntry = NULL;
-
- Status = EfiLibLocateProtocol (&gEfiLegacyBiosProtocolGuid, &LegacyBios);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- LegacyBios->GetBbsInfo (
- LegacyBios,
- &HddCount,
- &LocalHddInfo,
- &BbsCount,
- &LocalBbsTable
- );
-
- BootOrder = BdsLibGetVariableAndSize (
- L"BootOrder",
- &gEfiGlobalVariableGuid,
- &BootOrderSize
- );
- if (NULL == BootOrder) {
- return EFI_NOT_FOUND;
- }
-
- Index = 0;
- while (Index < BootOrderSize / sizeof (UINT16)) {
- UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", BootOrder[Index]);
- BootOptionVar = BdsLibGetVariableAndSize (
- BootOption,
- &gEfiGlobalVariableGuid,
- &BootOptionSize
- );
- if (NULL == BootOptionVar) {
- SafeFreePool (BootOrder);
- return EFI_OUT_OF_RESOURCES;
- }
-
- if (!BdsIsLegacyBootOption (BootOptionVar, &BbsEntry, &BbsIndex)) {
- SafeFreePool (BootOptionVar);
- Index++;
- continue;
- }
-
- //
- // Check if BBS Description String is changed
- //
- DescStringMatch = FALSE;
-
- BdsBuildLegacyDevNameString (
- &LocalBbsTable[BbsIndex],
- BbsIndex,
- sizeof(BootDesc),
- BootDesc
- );
-
- if (StrCmp (BootDesc, (UINT16*)(BootOptionVar + sizeof (UINT32) + sizeof (UINT16))) == 0) {
- DescStringMatch = TRUE;
- }
-
- if (!((LocalBbsTable[BbsIndex].BootPriority == BBS_IGNORE_ENTRY) ||
- (LocalBbsTable[BbsIndex].BootPriority == BBS_DO_NOT_BOOT_FROM) ||
- (LocalBbsTable[BbsIndex].BootPriority == BBS_LOWEST_PRIORITY)) &&
- (LocalBbsTable[BbsIndex].DeviceType == BbsEntry->DeviceType) &&
- DescStringMatch) {
- Index++;
- continue;
- }
-
- SafeFreePool (BootOptionVar);
- //
- // should delete
- //
- BdsDeleteBootOption (
- BootOrder[Index],
- BootOrder,
- &BootOrderSize
- );
- }
-
- if (BootOrderSize) {
- Status = gRT->SetVariable (
- L"BootOrder",
- &gEfiGlobalVariableGuid,
- VAR_FLAG,
- BootOrderSize,
- BootOrder
- );
- } else {
- EfiLibDeleteVariable (L"BootOrder", &gEfiGlobalVariableGuid);
- }
-
- SafeFreePool (BootOrder);
-
- return Status;
-}
-
-BOOLEAN
-BdsFindLegacyBootOptionByDevType (
- IN UINT16 *BootOrder,
- IN UINTN BootOptionNum,
- IN UINT16 DevType,
- OUT UINT32 *Attribute,
- OUT UINT16 *BbsIndex,
- OUT UINTN *OptionNumber
- )
-{
- UINTN Index;
- UINTN BootOrderIndex;
- UINT16 BootOption[100];
- UINTN BootOptionSize;
- UINT8 *BootOptionVar;
- BBS_TABLE *BbsEntry;
- BOOLEAN Found;
-
- BbsEntry = NULL;
- Found = FALSE;
-
- if (NULL == BootOrder) {
- return Found;
- }
-
- for (BootOrderIndex = 0; BootOrderIndex < BootOptionNum; BootOrderIndex++) {
- Index = (UINTN) BootOrder[BootOrderIndex];
- UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", Index);
- BootOptionVar = BdsLibGetVariableAndSize (
- BootOption,
- &gEfiGlobalVariableGuid,
- &BootOptionSize
- );
- if (NULL == BootOptionVar) {
- continue;
- }
-
- if (!BdsIsLegacyBootOption (BootOptionVar, &BbsEntry, BbsIndex)) {
- SafeFreePool (BootOptionVar);
- continue;
- }
-
- if (BbsEntry->DeviceType != DevType) {
- SafeFreePool (BootOptionVar);
- continue;
- }
-
- *Attribute = *(UINT32 *) BootOptionVar;
- *OptionNumber = Index;
- Found = TRUE;
- SafeFreePool (BootOptionVar);
- break;
- }
-
- return Found;
-}
-
-EFI_STATUS
-BdsCreateOneLegacyBootOption (
- IN BBS_TABLE *BbsItem,
- IN UINTN Index,
- IN OUT UINT16 **BootOrderList,
- IN OUT UINTN *BootOrderListSize
- )
-{
- BBS_BBS_DEVICE_PATH BbsDevPathNode;
- EFI_STATUS Status;
- EFI_DEVICE_PATH_PROTOCOL *DevPath;
-
- DevPath = NULL;
-
- BbsDevPathNode.Header.Type = BBS_DEVICE_PATH;
- BbsDevPathNode.Header.SubType = BBS_BBS_DP;
- SetDevicePathNodeLength (&BbsDevPathNode.Header, sizeof (BBS_BBS_DEVICE_PATH));
- BbsDevPathNode.DeviceType = BbsItem->DeviceType;
- CopyMem (&BbsDevPathNode.StatusFlag, &BbsItem->StatusFlags, sizeof (UINT16));
-
- DevPath = AppendDevicePathNode (
- EndDevicePath,
- (EFI_DEVICE_PATH_PROTOCOL *) &BbsDevPathNode
- );
- if (NULL == DevPath) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- Status = BdsCreateLegacyBootOption (
- BbsItem,
- DevPath,
- Index,
- BootOrderList,
- BootOrderListSize
- );
- BbsItem->BootPriority = 0x00;
-
- FreePool (DevPath);
-
- return Status;
-}
-
-EFI_STATUS
-BdsAddNonExistingLegacyBootOptions (
- VOID
- )
-/*++
-
-Routine Description:
-
- Add the legacy boot options from BBS table if they do not exist.
-
-Arguments:
-
- None.
-
-Returns:
-
- EFI_SUCCESS - The boot options are added successfully or they are already in boot options.
- others - An error occurred when creating legacy boot options.
-
---*/
-{
- UINT16 *BootOrder;
- UINTN BootOrderSize;
- EFI_STATUS Status;
- UINT16 HddCount;
- UINT16 BbsCount;
- HDD_INFO *LocalHddInfo;
- BBS_TABLE *LocalBbsTable;
- UINT16 BbsIndex;
- EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;
- UINTN Index;
- UINT32 Attribute;
- UINTN OptionNumber;
- BOOLEAN Ret;
-
- BootOrder = NULL;
- HddCount = 0;
- BbsCount = 0;
- LocalHddInfo = NULL;
- LocalBbsTable = NULL;
-
- Status = EfiLibLocateProtocol (&gEfiLegacyBiosProtocolGuid, &LegacyBios);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- LegacyBios->GetBbsInfo (
- LegacyBios,
- &HddCount,
- &LocalHddInfo,
- &BbsCount,
- &LocalBbsTable
- );
-
- BootOrder = BdsLibGetVariableAndSize (
- L"BootOrder",
- &gEfiGlobalVariableGuid,
- &BootOrderSize
- );
- if (NULL == BootOrder) {
- BootOrderSize = 0;
- }
-
- for (Index = 0; Index < BbsCount; Index++) {
- if ((LocalBbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) ||
- (LocalBbsTable[Index].BootPriority == BBS_DO_NOT_BOOT_FROM)
- ) {
- continue;
- }
-
- Ret = BdsFindLegacyBootOptionByDevType (
- BootOrder,
- BootOrderSize / sizeof (UINT16),
- LocalBbsTable[Index].DeviceType,
- &Attribute,
- &BbsIndex,
- &OptionNumber
- );
- if (Ret && (Attribute & LOAD_OPTION_ACTIVE) != 0) {
- continue;
- }
-
- if (Ret) {
- if (Index != BbsIndex) {
- BdsDeleteBootOption (
- OptionNumber,
- BootOrder,
- &BootOrderSize
- );
- } else {
- continue;
- }
- }
- //
- // Not found such type of legacy device in boot options or we found but it's disabled
- // so we have to create one and put it to the tail of boot order list
- //
- Status = BdsCreateOneLegacyBootOption (
- &LocalBbsTable[Index],
- Index,
- &BootOrder,
- &BootOrderSize
- );
- if (EFI_ERROR (Status)) {
- break;
- }
- }
-
- if (BootOrderSize > 0) {
- Status = gRT->SetVariable (
- L"BootOrder",
- &gEfiGlobalVariableGuid,
- VAR_FLAG,
- BootOrderSize,
- BootOrder
- );
- } else {
- EfiLibDeleteVariable (L"BootOrder", &gEfiGlobalVariableGuid);
- }
-
- if (BootOrder != NULL) {
- SafeFreePool (BootOrder);
- }
-
- return Status;
-}
-
-UINT16 *
-BdsFillDevOrderBuf (
- IN BBS_TABLE *BbsTable,
- IN BBS_TYPE BbsType,
- IN UINTN BbsCount,
- IN UINT16 *Buf
- )
-{
- UINTN Index;
-
- for (Index = 0; Index < BbsCount; Index++) {
- if (BbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) {
- continue;
- }
-
- if (BbsTable[Index].DeviceType != BbsType) {
- continue;
- }
-
- *Buf = (UINT16) (Index & 0xFF);
- Buf++;
- }
-
- return Buf;
-}
-
-EFI_STATUS
-BdsCreateDevOrder (
- IN BBS_TABLE *BbsTable,
- IN UINT16 BbsCount
- )
-{
- UINTN Index;
- UINTN FDCount;
- UINTN HDCount;
- UINTN CDCount;
- UINTN NETCount;
- UINTN BEVCount;
- UINTN TotalSize;
- UINTN HeaderSize;
- UINT8 *DevOrder;
- UINT8 *Ptr;
- EFI_STATUS Status;
-
- FDCount = 0;
- HDCount = 0;
- CDCount = 0;
- NETCount = 0;
- BEVCount = 0;
- TotalSize = 0;
- HeaderSize = sizeof (BBS_TYPE) + sizeof (UINT16);
- DevOrder = NULL;
- Ptr = NULL;
- Status = EFI_SUCCESS;
-
- for (Index = 0; Index < BbsCount; Index++) {
- if (BbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) {
- continue;
- }
-
- switch (BbsTable[Index].DeviceType) {
- case BBS_FLOPPY:
- FDCount++;
- break;
-
- case BBS_HARDDISK:
- HDCount++;
- break;
-
- case BBS_CDROM:
- CDCount++;
- break;
-
- case BBS_EMBED_NETWORK:
- NETCount++;
- break;
-
- case BBS_BEV_DEVICE:
- BEVCount++;
- break;
-
- default:
- break;
- }
- }
-
- TotalSize += (HeaderSize + sizeof (UINT16) * FDCount);
- TotalSize += (HeaderSize + sizeof (UINT16) * HDCount);
- TotalSize += (HeaderSize + sizeof (UINT16) * CDCount);
- TotalSize += (HeaderSize + sizeof (UINT16) * NETCount);
- TotalSize += (HeaderSize + sizeof (UINT16) * BEVCount);
-
- DevOrder = AllocateZeroPool (TotalSize);
- if (NULL == DevOrder) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- Ptr = DevOrder;
-
- *((BBS_TYPE *) Ptr) = BBS_FLOPPY;
- Ptr += sizeof (BBS_TYPE);
- *((UINT16 *) Ptr) = (UINT16) (sizeof (UINT16) + FDCount * sizeof (UINT16));
- Ptr += sizeof (UINT16);
- if (FDCount) {
- Ptr = (UINT8 *) BdsFillDevOrderBuf (BbsTable, BBS_FLOPPY, BbsCount, (UINT16 *) Ptr);
- }
-
- *((BBS_TYPE *) Ptr) = BBS_HARDDISK;
- Ptr += sizeof (BBS_TYPE);
- *((UINT16 *) Ptr) = (UINT16) (sizeof (UINT16) + HDCount * sizeof (UINT16));
- Ptr += sizeof (UINT16);
- if (HDCount) {
- Ptr = (UINT8 *) BdsFillDevOrderBuf (BbsTable, BBS_HARDDISK, BbsCount, (UINT16 *) Ptr);
- }
-
- *((BBS_TYPE *) Ptr) = BBS_CDROM;
- Ptr += sizeof (BBS_TYPE);
- *((UINT16 *) Ptr) = (UINT16) (sizeof (UINT16) + CDCount * sizeof (UINT16));
- Ptr += sizeof (UINT16);
- if (CDCount) {
- Ptr = (UINT8 *) BdsFillDevOrderBuf (BbsTable, BBS_CDROM, BbsCount, (UINT16 *) Ptr);
- }
-
- *((BBS_TYPE *) Ptr) = BBS_EMBED_NETWORK;
- Ptr += sizeof (BBS_TYPE);
- *((UINT16 *) Ptr) = (UINT16) (sizeof (UINT16) + NETCount * sizeof (UINT16));
- Ptr += sizeof (UINT16);
- if (NETCount) {
- Ptr = (UINT8 *) BdsFillDevOrderBuf (BbsTable, BBS_EMBED_NETWORK, BbsCount, (UINT16 *) Ptr);
- }
-
- *((BBS_TYPE *) Ptr) = BBS_BEV_DEVICE;
- Ptr += sizeof (BBS_TYPE);
- *((UINT16 *) Ptr) = (UINT16) (sizeof (UINT16) + BEVCount * sizeof (UINT16));
- Ptr += sizeof (UINT16);
- if (BEVCount) {
- Ptr = (UINT8 *) BdsFillDevOrderBuf (BbsTable, BBS_BEV_DEVICE, BbsCount, (UINT16 *) Ptr);
- }
-
- Status = gRT->SetVariable (
- VarLegacyDevOrder,
- &EfiLegacyDevOrderGuid,
- VAR_FLAG,
- TotalSize,
- DevOrder
- );
- SafeFreePool (DevOrder);
-
- return Status;
-}
-
-EFI_STATUS
-BdsUpdateLegacyDevOrder (
- VOID
- )
-/*++
-Format of LegacyDevOrder variable:
-|-----------------------------------------------------------------------------------------------------------------
-| BBS_FLOPPY | Length | Index0 | Index1 | ... | BBS_HARDDISK | Length | Index0 | Index1 | ... | BBS_CDROM | Length | Index0 | ...
-|-----------------------------------------------------------------------------------------------------------------
-
-Length is a 16 bit integer, it indicates how many Indexes follows, including the size of itself.
-Index# is a 16 bit integer, the low byte of it stands for the index in BBS table
- the high byte of it only have two value 0 and 0xFF, 0xFF means this device has been
- disabled by user.
---*/
-{
- UINT8 *DevOrder;
- UINT8 *NewDevOrder;
- UINTN DevOrderSize;
- EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;
- EFI_STATUS Status;
- UINT16 HddCount;
- UINT16 BbsCount;
- HDD_INFO *LocalHddInfo;
- BBS_TABLE *LocalBbsTable;
- UINTN Index;
- UINTN Index2;
- UINTN *Idx;
- UINTN FDCount;
- UINTN HDCount;
- UINTN CDCount;
- UINTN NETCount;
- UINTN BEVCount;
- UINTN TotalSize;
- UINTN HeaderSize;
- UINT8 *Ptr;
- UINT8 *NewPtr;
- UINT16 *NewFDPtr;
- UINT16 *NewHDPtr;
- UINT16 *NewCDPtr;
- UINT16 *NewNETPtr;
- UINT16 *NewBEVPtr;
- UINT16 *NewDevPtr;
- UINT16 Length;
- UINT16 tmp;
- UINTN FDIndex;
- UINTN HDIndex;
- UINTN CDIndex;
- UINTN NETIndex;
- UINTN BEVIndex;
-
- LocalHddInfo = NULL;
- LocalBbsTable = NULL;
- Idx = NULL;
- FDCount = 0;
- HDCount = 0;
- CDCount = 0;
- NETCount = 0;
- BEVCount = 0;
- TotalSize = 0;
- HeaderSize = sizeof (BBS_TYPE) + sizeof (UINT16);
- FDIndex = 0;
- HDIndex = 0;
- CDIndex = 0;
- NETIndex = 0;
- BEVIndex = 0;
- NewDevPtr = NULL;
-
- Status = EfiLibLocateProtocol (&gEfiLegacyBiosProtocolGuid, &LegacyBios);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- LegacyBios->GetBbsInfo (
- LegacyBios,
- &HddCount,
- &LocalHddInfo,
- &BbsCount,
- &LocalBbsTable
- );
-
- DevOrder = (UINT8 *) BdsLibGetVariableAndSize (
- VarLegacyDevOrder,
- &EfiLegacyDevOrderGuid,
- &DevOrderSize
- );
- if (NULL == DevOrder) {
- return BdsCreateDevOrder (LocalBbsTable, BbsCount);
- }
- //
- // First we figure out how many boot devices with same device type respectively
- //
- for (Index = 0; Index < BbsCount; Index++) {
- if ((LocalBbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) ||
- (LocalBbsTable[Index].BootPriority == BBS_DO_NOT_BOOT_FROM) ||
- (LocalBbsTable[Index].BootPriority == BBS_LOWEST_PRIORITY)
- ) {
- continue;
- }
-
- switch (LocalBbsTable[Index].DeviceType) {
- case BBS_FLOPPY:
- FDCount++;
- break;
-
- case BBS_HARDDISK:
- HDCount++;
- break;
-
- case BBS_CDROM:
- CDCount++;
- break;
-
- case BBS_EMBED_NETWORK:
- NETCount++;
- break;
-
- case BBS_BEV_DEVICE:
- BEVCount++;
- break;
-
- default:
- break;
- }
- }
-
- TotalSize += (HeaderSize + FDCount * sizeof (UINT16));
- TotalSize += (HeaderSize + HDCount * sizeof (UINT16));
- TotalSize += (HeaderSize + CDCount * sizeof (UINT16));
- TotalSize += (HeaderSize + NETCount * sizeof (UINT16));
- TotalSize += (HeaderSize + BEVCount * sizeof (UINT16));
-
- NewDevOrder = AllocateZeroPool (TotalSize);
- if (NULL == NewDevOrder) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- NewFDPtr = (UINT16 *) (NewDevOrder + HeaderSize);
- NewHDPtr = (UINT16 *) ((UINT8 *) NewFDPtr + FDCount * sizeof (UINT16) + HeaderSize);
- NewCDPtr = (UINT16 *) ((UINT8 *) NewHDPtr + HDCount * sizeof (UINT16) + HeaderSize);
- NewNETPtr = (UINT16 *) ((UINT8 *) NewCDPtr + CDCount * sizeof (UINT16) + HeaderSize);
- NewBEVPtr = (UINT16 *) ((UINT8 *) NewNETPtr + NETCount * sizeof (UINT16) + HeaderSize);
-
- //
- // copy FD
- //
- Ptr = DevOrder;
- NewPtr = NewDevOrder;
- *((BBS_TYPE *) NewPtr) = *((BBS_TYPE *) Ptr);
- Ptr += sizeof (BBS_TYPE);
- NewPtr += sizeof (BBS_TYPE);
- Length = *((UINT16 *) Ptr);
- *((UINT16 *) NewPtr) = (UINT16) (sizeof (UINT16) + FDCount * sizeof (UINT16));
- Ptr += sizeof (UINT16);
-
- for (Index = 0; Index < Length / sizeof (UINT16) - 1; Index++) {
- if (LocalBbsTable[*Ptr].BootPriority == BBS_IGNORE_ENTRY ||
- LocalBbsTable[*Ptr].BootPriority == BBS_DO_NOT_BOOT_FROM ||
- LocalBbsTable[*Ptr].BootPriority == BBS_LOWEST_PRIORITY ||
- LocalBbsTable[*Ptr].DeviceType != BBS_FLOPPY
- ) {
- Ptr += sizeof (UINT16);
- continue;
- }
-
- NewFDPtr[FDIndex] = *(UINT16 *) Ptr;
- FDIndex++;
- Ptr += sizeof (UINT16);
- }
- //
- // copy HD
- //
- NewPtr = (UINT8 *) NewHDPtr - HeaderSize;
- *((BBS_TYPE *) NewPtr) = *((BBS_TYPE *) Ptr);
- Ptr += sizeof (BBS_TYPE);
- NewPtr += sizeof (BBS_TYPE);
- Length = *((UINT16 *) Ptr);
- *((UINT16 *) NewPtr) = (UINT16) (sizeof (UINT16) + HDCount * sizeof (UINT16));
- Ptr += sizeof (UINT16);
-
- for (Index = 0; Index < Length / sizeof (UINT16) - 1; Index++) {
- if (LocalBbsTable[*Ptr].BootPriority == BBS_IGNORE_ENTRY ||
- LocalBbsTable[*Ptr].BootPriority == BBS_DO_NOT_BOOT_FROM ||
- LocalBbsTable[*Ptr].BootPriority == BBS_LOWEST_PRIORITY ||
- LocalBbsTable[*Ptr].DeviceType != BBS_HARDDISK
- ) {
- Ptr += sizeof (UINT16);
- continue;
- }
-
- NewHDPtr[HDIndex] = *(UINT16 *) Ptr;
- HDIndex++;
- Ptr += sizeof (UINT16);
- }
- //
- // copy CD
- //
- NewPtr = (UINT8 *) NewCDPtr - HeaderSize;
- *((BBS_TYPE *) NewPtr) = *((BBS_TYPE *) Ptr);
- Ptr += sizeof (BBS_TYPE);
- NewPtr += sizeof (BBS_TYPE);
- Length = *((UINT16 *) Ptr);
- *((UINT16 *) NewPtr) = (UINT16) (sizeof (UINT16) + CDCount * sizeof (UINT16));
- Ptr += sizeof (UINT16);
-
- for (Index = 0; Index < Length / sizeof (UINT16) - 1; Index++) {
- if (LocalBbsTable[*Ptr].BootPriority == BBS_IGNORE_ENTRY ||
- LocalBbsTable[*Ptr].BootPriority == BBS_DO_NOT_BOOT_FROM ||
- LocalBbsTable[*Ptr].BootPriority == BBS_LOWEST_PRIORITY ||
- LocalBbsTable[*Ptr].DeviceType != BBS_CDROM
- ) {
- Ptr += sizeof (UINT16);
- continue;
- }
-
- NewCDPtr[CDIndex] = *(UINT16 *) Ptr;
- CDIndex++;
- Ptr += sizeof (UINT16);
- }
- //
- // copy NET
- //
- NewPtr = (UINT8 *) NewNETPtr - HeaderSize;
- *((BBS_TYPE *) NewPtr) = *((BBS_TYPE *) Ptr);
- Ptr += sizeof (BBS_TYPE);
- NewPtr += sizeof (BBS_TYPE);
- Length = *((UINT16 *) Ptr);
- *((UINT16 *) NewPtr) = (UINT16) (sizeof (UINT16) + NETCount * sizeof (UINT16));
- Ptr += sizeof (UINT16);
-
- for (Index = 0; Index < Length / sizeof (UINT16) - 1; Index++) {
- if (LocalBbsTable[*Ptr].BootPriority == BBS_IGNORE_ENTRY ||
- LocalBbsTable[*Ptr].BootPriority == BBS_DO_NOT_BOOT_FROM ||
- LocalBbsTable[*Ptr].BootPriority == BBS_LOWEST_PRIORITY ||
- LocalBbsTable[*Ptr].DeviceType != BBS_EMBED_NETWORK
- ) {
- Ptr += sizeof (UINT16);
- continue;
- }
-
- NewNETPtr[NETIndex] = *(UINT16 *) Ptr;
- NETIndex++;
- Ptr += sizeof (UINT16);
- }
- //
- // copy BEV
- //
- NewPtr = (UINT8 *) NewBEVPtr - HeaderSize;
- *((BBS_TYPE *) NewPtr) = *((BBS_TYPE *) Ptr);
- Ptr += sizeof (BBS_TYPE);
- NewPtr += sizeof (BBS_TYPE);
- Length = *((UINT16 *) Ptr);
- *((UINT16 *) NewPtr) = (UINT16) (sizeof (UINT16) + BEVCount * sizeof (UINT16));
- Ptr += sizeof (UINT16);
-
- for (Index = 0; Index < Length / sizeof (UINT16) - 1; Index++) {
- if (LocalBbsTable[*Ptr].BootPriority == BBS_IGNORE_ENTRY ||
- LocalBbsTable[*Ptr].BootPriority == BBS_DO_NOT_BOOT_FROM ||
- LocalBbsTable[*Ptr].BootPriority == BBS_LOWEST_PRIORITY ||
- LocalBbsTable[*Ptr].DeviceType != BBS_BEV_DEVICE
- ) {
- Ptr += sizeof (UINT16);
- continue;
- }
-
- NewBEVPtr[BEVIndex] = *(UINT16 *) Ptr;
- BEVIndex++;
- Ptr += sizeof (UINT16);
- }
-
- for (Index = 0; Index < BbsCount; Index++) {
- if ((LocalBbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) ||
- (LocalBbsTable[Index].BootPriority == BBS_DO_NOT_BOOT_FROM) ||
- (LocalBbsTable[Index].BootPriority == BBS_LOWEST_PRIORITY)
- ) {
- continue;
- }
-
- switch (LocalBbsTable[Index].DeviceType) {
- case BBS_FLOPPY:
- Idx = &FDIndex;
- NewDevPtr = NewFDPtr;
- break;
-
- case BBS_HARDDISK:
- Idx = &HDIndex;
- NewDevPtr = NewHDPtr;
- break;
-
- case BBS_CDROM:
- Idx = &CDIndex;
- NewDevPtr = NewCDPtr;
- break;
-
- case BBS_EMBED_NETWORK:
- Idx = &NETIndex;
- NewDevPtr = NewNETPtr;
- break;
-
- case BBS_BEV_DEVICE:
- Idx = &BEVIndex;
- NewDevPtr = NewBEVPtr;
- break;
-
- default:
- Idx = NULL;
- break;
- }
- //
- // at this point we have copied those valid indexes to new buffer
- // and we should check if there is any new appeared boot device
- //
- if (Idx) {
- for (Index2 = 0; Index2 < *Idx; Index2++) {
- if ((NewDevPtr[Index2] & 0xFF) == (UINT16) Index) {
- break;
- }
- }
-
- if (Index2 == *Idx) {
- //
- // Index2 == *Idx means we didn't find Index
- // so Index is a new appeared device's index in BBS table
- // save it.
- //
- NewDevPtr[*Idx] = (UINT16) (Index & 0xFF);
- (*Idx)++;
- }
- }
- }
-
- if (FDCount) {
- //
- // Just to make sure that disabled indexes are all at the end of the array
- //
- for (Index = 0; Index < FDIndex - 1; Index++) {
- if (0xFF00 != (NewFDPtr[Index] & 0xFF00)) {
- continue;
- }
-
- for (Index2 = Index + 1; Index2 < FDIndex; Index2++) {
- if (0 == (NewFDPtr[Index2] & 0xFF00)) {
- tmp = NewFDPtr[Index];
- NewFDPtr[Index] = NewFDPtr[Index2];
- NewFDPtr[Index2] = tmp;
- break;
- }
- }
- }
- }
-
- if (HDCount) {
- //
- // Just to make sure that disabled indexes are all at the end of the array
- //
- for (Index = 0; Index < HDIndex - 1; Index++) {
- if (0xFF00 != (NewHDPtr[Index] & 0xFF00)) {
- continue;
- }
-
- for (Index2 = Index + 1; Index2 < HDIndex; Index2++) {
- if (0 == (NewHDPtr[Index2] & 0xFF00)) {
- tmp = NewHDPtr[Index];
- NewHDPtr[Index] = NewHDPtr[Index2];
- NewHDPtr[Index2] = tmp;
- break;
- }
- }
- }
- }
-
- if (CDCount) {
- //
- // Just to make sure that disabled indexes are all at the end of the array
- //
- for (Index = 0; Index < CDIndex - 1; Index++) {
- if (0xFF00 != (NewCDPtr[Index] & 0xFF00)) {
- continue;
- }
-
- for (Index2 = Index + 1; Index2 < CDIndex; Index2++) {
- if (0 == (NewCDPtr[Index2] & 0xFF00)) {
- tmp = NewCDPtr[Index];
- NewCDPtr[Index] = NewCDPtr[Index2];
- NewCDPtr[Index2] = tmp;
- break;
- }
- }
- }
- }
-
- if (NETCount) {
- //
- // Just to make sure that disabled indexes are all at the end of the array
- //
- for (Index = 0; Index < NETIndex - 1; Index++) {
- if (0xFF00 != (NewNETPtr[Index] & 0xFF00)) {
- continue;
- }
-
- for (Index2 = Index + 1; Index2 < NETIndex; Index2++) {
- if (0 == (NewNETPtr[Index2] & 0xFF00)) {
- tmp = NewNETPtr[Index];
- NewNETPtr[Index] = NewNETPtr[Index2];
- NewNETPtr[Index2] = tmp;
- break;
- }
- }
- }
- }
-
- if (BEVCount) {
- //
- // Just to make sure that disabled indexes are all at the end of the array
- //
- for (Index = 0; Index < BEVIndex - 1; Index++) {
- if (0xFF00 != (NewBEVPtr[Index] & 0xFF00)) {
- continue;
- }
-
- for (Index2 = Index + 1; Index2 < BEVIndex; Index2++) {
- if (0 == (NewBEVPtr[Index2] & 0xFF00)) {
- tmp = NewBEVPtr[Index];
- NewBEVPtr[Index] = NewBEVPtr[Index2];
- NewBEVPtr[Index2] = tmp;
- break;
- }
- }
- }
- }
-
- SafeFreePool (DevOrder);
-
- Status = gRT->SetVariable (
- VarLegacyDevOrder,
- &EfiLegacyDevOrderGuid,
- VAR_FLAG,
- TotalSize,
- NewDevOrder
- );
- SafeFreePool (NewDevOrder);
-
- return Status;
-}
-
-EFI_STATUS
-BdsSetBootPriority4SameTypeDev (
- IN UINT16 DeviceType,
- IN OUT BBS_TABLE *LocalBbsTable,
- IN OUT UINT16 *Priority
- )
-/*++
-DeviceType - BBS_FLOPPY, BBS_HARDDISK, BBS_CDROM and so on
-LocalBbsTable - BBS table instance
-Priority - As input arg, it is the start point of boot priority, as output arg, it is the start point of boot
- priority can be used next time.
---*/
-{
- UINT8 *DevOrder;
-
- UINT8 *OrigBuffer;
- UINT16 *DevIndex;
- UINTN DevOrderSize;
- UINTN DevCount;
- UINTN Index;
-
- DevOrder = BdsLibGetVariableAndSize (
- VarLegacyDevOrder,
- &EfiLegacyDevOrderGuid,
- &DevOrderSize
- );
- if (NULL == DevOrder) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- OrigBuffer = DevOrder;
- while (DevOrder < OrigBuffer + DevOrderSize) {
- if (DeviceType == * (BBS_TYPE *) DevOrder) {
- break;
- }
-
- DevOrder += sizeof (BBS_TYPE);
- DevOrder += *(UINT16 *) DevOrder;
- }
-
- if (DevOrder >= OrigBuffer + DevOrderSize) {
- SafeFreePool (OrigBuffer);
- return EFI_NOT_FOUND;
- }
-
- DevOrder += sizeof (BBS_TYPE);
- DevCount = (*((UINT16 *) DevOrder) - sizeof (UINT16)) / sizeof (UINT16);
- DevIndex = (UINT16 *) (DevOrder + sizeof (UINT16));
- //
- // If the high byte of the DevIndex is 0xFF, it indicates that this device has been disabled.
- //
- for (Index = 0; Index < DevCount; Index++) {
- if ((DevIndex[Index] & 0xFF00) == 0xFF00) {
- //
- // LocalBbsTable[DevIndex[Index] & 0xFF].BootPriority = BBS_DISABLED_ENTRY;
- //
- } else {
- LocalBbsTable[DevIndex[Index] & 0xFF].BootPriority = *Priority;
- (*Priority)++;
- }
- }
-
- SafeFreePool (OrigBuffer);
- return EFI_SUCCESS;
-}
-
-VOID
-PrintBbsTable (
- IN BBS_TABLE *LocalBbsTable
- )
-{
- UINT16 Idx;
-
- DEBUG ((EFI_D_ERROR, "\n"));
- DEBUG ((EFI_D_ERROR, " NO Prio bb/dd/ff cl/sc Type Stat segm:offs\n"));
- DEBUG ((EFI_D_ERROR, "=============================================\n"));
- for (Idx = 0; Idx < MAX_BBS_ENTRIES; Idx++) {
- if ((LocalBbsTable[Idx].BootPriority == BBS_IGNORE_ENTRY) ||
- (LocalBbsTable[Idx].BootPriority == BBS_DO_NOT_BOOT_FROM) ||
- (LocalBbsTable[Idx].BootPriority == BBS_LOWEST_PRIORITY)
- ) {
- continue;
- }
-
- DEBUG (
- (EFI_D_ERROR,
- " %02x: %04x %02x/%02x/%02x %02x/02%x %04x %04x %04x:%04x\n",
- (UINTN) Idx,
- (UINTN) LocalBbsTable[Idx].BootPriority,
- (UINTN) LocalBbsTable[Idx].Bus,
- (UINTN) LocalBbsTable[Idx].Device,
- (UINTN) LocalBbsTable[Idx].Function,
- (UINTN) LocalBbsTable[Idx].Class,
- (UINTN) LocalBbsTable[Idx].SubClass,
- (UINTN) LocalBbsTable[Idx].DeviceType,
- (UINTN) * (UINT16 *) &LocalBbsTable[Idx].StatusFlags,
- (UINTN) LocalBbsTable[Idx].BootHandlerSegment,
- (UINTN) LocalBbsTable[Idx].BootHandlerOffset,
- (UINTN) ((LocalBbsTable[Idx].MfgStringSegment << 4) + LocalBbsTable[Idx].MfgStringOffset),
- (UINTN) ((LocalBbsTable[Idx].DescStringSegment << 4) + LocalBbsTable[Idx].DescStringOffset))
- );
- }
-
- DEBUG ((EFI_D_ERROR, "\n"));
-}
-
-EFI_STATUS
-BdsRefreshBbsTableForBoot (
- IN BDS_COMMON_OPTION *Entry
- )
-{
- EFI_STATUS Status;
- UINT16 HddCount;
- UINT16 BbsCount;
- HDD_INFO *LocalHddInfo;
- BBS_TABLE *LocalBbsTable;
- UINT16 DevType;
- EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;
- UINTN Index;
- UINT16 Priority;
- UINT16 *BootOrder;
- UINTN BootOrderSize;
- UINT8 *BootOptionVar;
- UINTN BootOptionSize;
- UINT16 BootOption[100];
- UINT8 *Ptr;
- UINT16 DevPathLen;
- EFI_DEVICE_PATH_PROTOCOL *DevPath;
-
- HddCount = 0;
- BbsCount = 0;
- LocalHddInfo = NULL;
- LocalBbsTable = NULL;
- DevType = BBS_UNKNOWN;
-
- Status = EfiLibLocateProtocol (&gEfiLegacyBiosProtocolGuid, &LegacyBios);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- LegacyBios->GetBbsInfo (
- LegacyBios,
- &HddCount,
- &LocalHddInfo,
- &BbsCount,
- &LocalBbsTable
- );
- //
- // First, set all the present devices' boot priority to BBS_UNPRIORITIZED_ENTRY
- // We will set them according to the settings setup by user
- //
- for (Index = 0; Index < BbsCount; Index++) {
- if (!((BBS_IGNORE_ENTRY == LocalBbsTable[Index].BootPriority) ||
- (BBS_DO_NOT_BOOT_FROM == LocalBbsTable[Index].BootPriority) ||
- (BBS_LOWEST_PRIORITY == LocalBbsTable[Index].BootPriority))) {
- LocalBbsTable[Index].BootPriority = BBS_UNPRIORITIZED_ENTRY;
- }
- }
- //
- // boot priority always starts at 0
- //
- Priority = 0;
- if (Entry->LoadOptionsSize == sizeof (BBS_TABLE) + sizeof (UINT16)) {
- //
- // If Entry stands for a legacy boot option, we prioritize the devices with the same type first.
- //
- DevType = ((BBS_TABLE *) Entry->LoadOptions)->DeviceType;
- Status = BdsSetBootPriority4SameTypeDev (
- DevType,
- LocalBbsTable,
- &Priority
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
- }
- //
- // we have to set the boot priority for other BBS entries with different device types
- //
- BootOrder = (UINT16 *) BdsLibGetVariableAndSize (
- L"BootOrder",
- &gEfiGlobalVariableGuid,
- &BootOrderSize
- );
- for (Index = 0; BootOrder && Index < BootOrderSize / sizeof (UINT16); Index++) {
- UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", BootOrder[Index]);
- BootOptionVar = BdsLibGetVariableAndSize (
- BootOption,
- &gEfiGlobalVariableGuid,
- &BootOptionSize
- );
- if (NULL == BootOptionVar) {
- continue;
- }
-
- Ptr = BootOptionVar;
-
- Ptr += sizeof (UINT32);
- DevPathLen = *(UINT16 *) Ptr;
- Ptr += sizeof (UINT16);
- Ptr += StrSize ((UINT16 *) Ptr);
- DevPath = (EFI_DEVICE_PATH_PROTOCOL *) Ptr;
- if (BBS_DEVICE_PATH != DevPath->Type || BBS_BBS_DP != DevPath->SubType) {
- SafeFreePool (BootOptionVar);
- continue;
- }
-
- Ptr += DevPathLen;
- if (DevType == ((BBS_TABLE *) Ptr)->DeviceType) {
- //
- // We don't want to process twice for a device type
- //
- SafeFreePool (BootOptionVar);
- continue;
- }
-
- Status = BdsSetBootPriority4SameTypeDev (
- ((BBS_TABLE *) Ptr)->DeviceType,
- LocalBbsTable,
- &Priority
- );
- SafeFreePool (BootOptionVar);
- if (EFI_ERROR (Status)) {
- break;
- }
- }
-
- if (BootOrder) {
- SafeFreePool (BootOrder);
- }
- //
- // For debug
- //
- PrintBbsTable (LocalBbsTable);
-
- return Status;
-}
|