--- /dev/null
+/** @file\r
+ Implementation for iSCSI Boot Firmware Table publication.\r
+\r
+Copyright (c) 2004 - 2011, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials\r
+are licensed and made available under the terms and conditions of the BSD License\r
+which accompanies this distribution. The full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include "IScsiImpl.h"\r
+\r
+BOOLEAN mIbftInstalled = FALSE;\r
+UINTN mTableKey;\r
+\r
+/**\r
+ Initialize the header of the iSCSI Boot Firmware Table.\r
+ \r
+ @param[out] Header The header of the iSCSI Boot Firmware Table.\r
+ @param[in] OemId The OEM ID.\r
+ @param[in] OemTableId The OEM table ID for the iBFT.\r
+\r
+**/\r
+VOID\r
+IScsiInitIbfTableHeader (\r
+ OUT EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_HEADER *Header,\r
+ IN UINT8 *OemId,\r
+ IN UINT64 *OemTableId\r
+ )\r
+{\r
+ Header->Signature = EFI_ACPI_3_0_ISCSI_BOOT_FIRMWARE_TABLE_SIGNATURE;\r
+ Header->Length = IBFT_HEAP_OFFSET;\r
+ Header->Revision = EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_REVISION;\r
+ Header->Checksum = 0;\r
+\r
+ CopyMem (Header->OemId, OemId, sizeof (Header->OemId));\r
+ CopyMem (&Header->OemTableId, OemTableId, sizeof (UINT64));\r
+}\r
+\r
+\r
+/**\r
+ Initialize the control section of the iSCSI Boot Firmware Table.\r
+\r
+ @param[in] Table The ACPI table.\r
+\r
+**/\r
+VOID\r
+IScsiInitControlSection (\r
+ IN EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_HEADER *Table\r
+ )\r
+{\r
+ EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_CONTROL_STRUCTURE *Control;\r
+ UINTN NumOffset;\r
+\r
+ Control = (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_CONTROL_STRUCTURE *) (Table + 1);\r
+\r
+ Control->Header.StructureId = EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_CONTROL_STRUCTURE_ID;\r
+ Control->Header.Version = EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_CONTROL_STRUCTURE_VERSION;\r
+ Control->Header.Length = (UINT16) sizeof (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_CONTROL_STRUCTURE);\r
+\r
+ //\r
+ // If in multipathing mode, enable the Boot Failover Flag.\r
+ // If in single path mode, disable it. Mix-model is not allowed.\r
+ //\r
+ // BUGBUG: if Boot Failover Flag is set to 1, the OS installer cannot\r
+ // find the iSCSI mapped disk. So still keep not set for single path mode.\r
+ //\r
+ if (mPrivate->EnableMpio) {\r
+ Control->Header.Flags = 0;\r
+ NumOffset = 2 * (mPrivate->MpioCount - mPrivate->Krb5MpioCount);\r
+ } else {\r
+ NumOffset = 2 * mPrivate->ValidSinglePathCount;\r
+ }\r
+\r
+ //\r
+ // Each attempt occupies two offsets: one for the NIC section;\r
+ // the other for the Target section.\r
+ //\r
+ if (NumOffset > 4) {\r
+ //\r
+ // Need expand the control section if more than 2 NIC/Target attempts\r
+ // exist.\r
+ //\r
+ Control->Header.Length = (UINT16) (Control->Header.Length + (NumOffset - 4) * sizeof (UINT16));\r
+ }\r
+}\r
+\r
+\r
+/**\r
+ Add one item into the heap.\r
+\r
+ @param[in, out] Heap On input, the current address of the heap. On output, the address of\r
+ the heap after the item is added.\r
+ @param[in] Data The data to add into the heap.\r
+ @param[in] Len Length of the Data in byte.\r
+\r
+**/\r
+VOID\r
+IScsiAddHeapItem (\r
+ IN OUT UINT8 **Heap,\r
+ IN VOID *Data,\r
+ IN UINTN Len\r
+ )\r
+{\r
+ //\r
+ // Add one byte for the NULL delimiter.\r
+ //\r
+ *Heap -= Len + 1;\r
+\r
+ CopyMem (*Heap, Data, Len);\r
+ *(*Heap + Len) = 0;\r
+}\r
+\r
+\r
+/**\r
+ Fill the Initiator section of the iSCSI Boot Firmware Table.\r
+\r
+ @param[in] Table The ACPI table.\r
+ @param[in, out] Heap The heap.\r
+\r
+**/\r
+VOID\r
+IScsiFillInitiatorSection (\r
+ IN EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_HEADER *Table,\r
+ IN OUT UINT8 **Heap\r
+ )\r
+{\r
+ EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_CONTROL_STRUCTURE *Control;\r
+ EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_INITIATOR_STRUCTURE *Initiator;\r
+\r
+ Control = (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_CONTROL_STRUCTURE *) (Table + 1);\r
+\r
+ //\r
+ // Initiator section immediately follows the control section.\r
+ //\r
+ Initiator = (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_INITIATOR_STRUCTURE *)\r
+ ((UINT8 *) Control + IBFT_ROUNDUP (Control->Header.Length));\r
+\r
+ Control->InitiatorOffset = (UINT16) ((UINTN) Initiator - (UINTN) Table);\r
+\r
+ Initiator->Header.StructureId = EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_INITIATOR_STRUCTURE_ID;\r
+ Initiator->Header.Version = EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_INITIATOR_STRUCTURE_VERSION;\r
+ Initiator->Header.Length = (UINT16) sizeof (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_INITIATOR_STRUCTURE);\r
+ Initiator->Header.Flags = EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_INITIATOR_STRUCTURE_FLAG_BLOCK_VALID |\r
+ EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_INITIATOR_STRUCTURE_FLAG_BOOT_SELECTED;\r
+\r
+ //\r
+ // Fill the iSCSI Initiator Name into the heap.\r
+ //\r
+ IScsiAddHeapItem (Heap, mPrivate->InitiatorName, mPrivate->InitiatorNameLength - 1);\r
+\r
+ Initiator->IScsiNameLength = (UINT16) (mPrivate->InitiatorNameLength - 1);\r
+ Initiator->IScsiNameOffset = (UINT16) ((UINTN) *Heap - (UINTN) Table);\r
+}\r
+\r
+\r
+/**\r
+ Map the v4 IP address into v6 IP address.\r
+\r
+ @param[in] V4 The v4 IP address.\r
+ @param[out] V6 The v6 IP address.\r
+\r
+**/\r
+VOID\r
+IScsiMapV4ToV6Addr (\r
+ IN EFI_IPv4_ADDRESS *V4,\r
+ OUT EFI_IPv6_ADDRESS *V6\r
+ )\r
+{\r
+ UINTN Index;\r
+\r
+ ZeroMem (V6, sizeof (EFI_IPv6_ADDRESS));\r
+\r
+ V6->Addr[10] = 0xff;\r
+ V6->Addr[11] = 0xff;\r
+\r
+ for (Index = 0; Index < 4; Index++) {\r
+ V6->Addr[12 + Index] = V4->Addr[Index];\r
+ }\r
+}\r
+\r
+\r
+/**\r
+ Fill the NIC and target sections in iSCSI Boot Firmware Table.\r
+\r
+ @param[in] Table The buffer of the ACPI table.\r
+ @param[in, out] Heap The heap buffer used to store the variable length\r
+ parameters such as iSCSI name.\r
+\r
+**/\r
+VOID\r
+IScsiFillNICAndTargetSections (\r
+ IN EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_HEADER *Table,\r
+ IN OUT UINT8 **Heap\r
+ )\r
+{\r
+ EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_CONTROL_STRUCTURE *Control;\r
+ EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_NIC_STRUCTURE *Nic;\r
+ EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_TARGET_STRUCTURE *Target;\r
+ ISCSI_SESSION_CONFIG_NVDATA *NvData;\r
+ ISCSI_CHAP_AUTH_CONFIG_NVDATA *AuthConfig;\r
+ UINT16 *SectionOffset;\r
+ UINTN Index;\r
+ UINT16 Length;\r
+ LIST_ENTRY *Entry;\r
+ ISCSI_ATTEMPT_CONFIG_NVDATA *Attempt;\r
+ ISCSI_NIC_INFO *NicInfo;\r
+ BOOLEAN Flag;\r
+\r
+ //\r
+ // Get the offset of the first Nic and Target section.\r
+ //\r
+ Control = (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_CONTROL_STRUCTURE *) (Table + 1);\r
+ Nic = (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_NIC_STRUCTURE *) ((UINTN) Table +\r
+ Control->InitiatorOffset + IBFT_ROUNDUP (sizeof (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_INITIATOR_STRUCTURE)));\r
+ Target = (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_TARGET_STRUCTURE *) ((UINTN) Nic +\r
+ IBFT_ROUNDUP (sizeof (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_NIC_STRUCTURE)));\r
+\r
+ SectionOffset = &Control->NIC0Offset;\r
+\r
+ Index = 0;\r
+ Flag = TRUE;\r
+\r
+ NET_LIST_FOR_EACH (Entry, &mPrivate->AttemptConfigs) {\r
+ if (Index == 0) {\r
+ //\r
+ // First entry should be boot selected entry.\r
+ //\r
+ Attempt = IScsiConfigGetAttemptByConfigIndex (mPrivate->BootSelectedIndex);\r
+ if (Attempt == NULL) {\r
+ //\r
+ // First boot selected entry can not be found.\r
+ //\r
+ break;\r
+ }\r
+\r
+ ASSERT (Attempt->SessionConfigData.Enabled != ISCSI_DISABLED);\r
+\r
+ } else {\r
+ if (Index == 1 && Flag) {\r
+ Entry = mPrivate->AttemptConfigs.ForwardLink;\r
+ Flag = FALSE;\r
+ }\r
+\r
+ Attempt = NET_LIST_USER_STRUCT (Entry, ISCSI_ATTEMPT_CONFIG_NVDATA, Link);\r
+ if (Attempt->AttemptConfigIndex == mPrivate->BootSelectedIndex) {\r
+ continue;\r
+ }\r
+ }\r
+\r
+ if (Attempt->SessionConfigData.Enabled == ISCSI_DISABLED) {\r
+ continue;\r
+ }\r
+\r
+ //\r
+ // Krb5 attempt will not be recorded in iBFT.\r
+ //\r
+ if (Attempt->AuthenticationType == ISCSI_AUTH_TYPE_KRB) {\r
+ continue;\r
+ }\r
+\r
+ //\r
+ // If multipath mode is enabled, only the attempts in MPIO will be recorded in iBFT.\r
+ //\r
+ if (mPrivate->EnableMpio && Attempt->SessionConfigData.Enabled != ISCSI_ENABLED_FOR_MPIO) {\r
+ continue;\r
+ }\r
+\r
+ //\r
+ // Only the valid attempts will be recorded.\r
+ //\r
+ if (!Attempt->ValidiBFTPath) {\r
+ continue;\r
+ }\r
+\r
+ NvData = &Attempt->SessionConfigData;\r
+ AuthConfig = &Attempt->AuthConfigData.CHAP;\r
+\r
+ //\r
+ // Fill the Nic section.\r
+ //\r
+\r
+ Nic->Header.StructureId = EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_NIC_STRUCTURE_ID;\r
+ Nic->Header.Version = EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_NIC_STRUCTURE_VERSION;\r
+ Nic->Header.Length = (UINT16) sizeof (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_NIC_STRUCTURE);\r
+ Nic->Header.Index = (UINT8) Index;\r
+ Nic->Header.Flags = EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_NIC_STRUCTURE_FLAG_BLOCK_VALID |\r
+ EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_NIC_STRUCTURE_FLAG_GLOBAL;\r
+\r
+ if (Index == 0) {\r
+ Nic->Header.Flags |= EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_NIC_STRUCTURE_FLAG_BOOT_SELECTED;\r
+ }\r
+\r
+ if (NvData->InitiatorInfoFromDhcp) {\r
+ Nic->Origin = IpPrefixOriginDhcp;\r
+ } else {\r
+ Nic->Origin = IpPrefixOriginManual;\r
+ }\r
+\r
+ if (NvData->IpMode == IP_MODE_IP4 || NvData->IpMode == IP_MODE_AUTOCONFIG) {\r
+ //\r
+ // Get the subnet mask prefix length.\r
+ //\r
+ Nic->SubnetMaskPrefixLength = IScsiGetSubnetMaskPrefixLength (&NvData->SubnetMask);\r
+\r
+ //\r
+ // Map the various v4 addresses into v6 addresses.\r
+ //\r
+ IScsiMapV4ToV6Addr (&NvData->LocalIp, &Nic->Ip);\r
+ IScsiMapV4ToV6Addr (&NvData->Gateway, &Nic->Gateway);\r
+ IScsiMapV4ToV6Addr (&Attempt->PrimaryDns.v4, &Nic->PrimaryDns);\r
+ IScsiMapV4ToV6Addr (&Attempt->SecondaryDns.v4, &Nic->SecondaryDns);\r
+ IScsiMapV4ToV6Addr (&Attempt->DhcpServer.v4, &Nic->DhcpServer);\r
+\r
+ } else if (NvData->IpMode == IP_MODE_IP6 || NvData->IpMode == IP_MODE_AUTOCONFIG) {\r
+ //\r
+ // TODO: The subnet mask/local ip/gateway/dhcpserver for iBFT-IPv6 needs to be \r
+ // confirmed with spec owner.\r
+ //\r
+\r
+ CopyMem (&Nic->PrimaryDns, &Attempt->PrimaryDns, sizeof (EFI_IPv6_ADDRESS));\r
+ CopyMem (&Nic->SecondaryDns, &Attempt->SecondaryDns, sizeof (EFI_IPv6_ADDRESS));\r
+ //\r
+ // TODO: DHCP server address cannot be retrieved by DHCPv6 process since \r
+ // DHCP server option is removed.\r
+ //CopyMem (&Nic->DhcpServer, &Attempt->DhcpServer, sizeof (EFI_IPv6_ADDRESS));\r
+ //\r
+ } else {\r
+ ASSERT (FALSE);\r
+ }\r
+\r
+ //\r
+ // Get Nic Info: VLAN tag, Mac address, PCI location.\r
+ //\r
+ NicInfo = IScsiGetNicInfoByIndex (Attempt->NicIndex);\r
+ ASSERT (NicInfo != NULL);\r
+\r
+ Nic->VLanTag = NicInfo->VlanId;\r
+ CopyMem (Nic->Mac, &NicInfo->PermanentAddress, sizeof (Nic->Mac));\r
+ Nic->PciLocation = (UINT16) ((NicInfo->BusNumber << 8) |\r
+ (NicInfo->DeviceNumber << 3) | NicInfo->FunctionNumber);\r
+ *SectionOffset = (UINT16) ((UINTN) Nic - (UINTN) Table);\r
+ SectionOffset++;\r
+\r
+ //\r
+ // Fill the Target section.\r
+ //\r
+\r
+ Target->Header.StructureId = EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_TARGET_STRUCTURE_ID;\r
+ Target->Header.Version = EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_TARGET_STRUCTURE_VERSION;\r
+ Target->Header.Length = (UINT16) sizeof (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_TARGET_STRUCTURE);\r
+ Target->Header.Index = (UINT8) Index;\r
+ Target->Header.Flags = EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_TARGET_STRUCTURE_FLAG_BLOCK_VALID;\r
+\r
+ if (Index == 0) {\r
+ Target->Header.Flags |= EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_TARGET_STRUCTURE_FLAG_BOOT_SELECTED;\r
+ }\r
+\r
+ Target->Port = NvData->TargetPort;\r
+\r
+ if (Attempt->AuthenticationType == ISCSI_AUTH_TYPE_CHAP) {\r
+ Target->CHAPType = AuthConfig->CHAPType;\r
+ } else if (Attempt->AuthenticationType == ISCSI_AUTH_TYPE_NONE) {\r
+ Target->CHAPType = ISCSI_AUTH_TYPE_NONE;\r
+ }\r
+\r
+ Target->NicIndex = (UINT8) Index;\r
+\r
+ if (NvData->IpMode == IP_MODE_IP4 || NvData->IpMode == IP_MODE_AUTOCONFIG) {\r
+ IScsiMapV4ToV6Addr (&NvData->TargetIp.v4, &Target->Ip);\r
+ } else if (NvData->IpMode == IP_MODE_IP6 || NvData->IpMode == IP_MODE_AUTOCONFIG) {\r
+ CopyMem (&Target->Ip, &NvData->TargetIp, sizeof (EFI_IPv6_ADDRESS));\r
+ } else {\r
+ ASSERT (FALSE);\r
+ }\r
+\r
+ CopyMem (Target->BootLun, NvData->BootLun, sizeof (Target->BootLun));\r
+\r
+ //\r
+ // Target iSCSI Name, CHAP name/secret, reverse CHAP name/secret.\r
+ //\r
+ Length = (UINT16) AsciiStrLen (NvData->TargetName);\r
+ IScsiAddHeapItem (Heap, NvData->TargetName, Length);\r
+\r
+ Target->IScsiNameLength = Length;\r
+ Target->IScsiNameOffset = (UINT16) ((UINTN) *Heap - (UINTN) Table);\r
+\r
+ if (Attempt->AuthenticationType == ISCSI_AUTH_TYPE_CHAP) {\r
+ //\r
+ // CHAP Name\r
+ //\r
+ Length = (UINT16) AsciiStrLen (AuthConfig->CHAPName);\r
+ IScsiAddHeapItem (Heap, AuthConfig->CHAPName, Length);\r
+ Target->CHAPNameLength = Length;\r
+ Target->CHAPNameOffset = (UINT16) ((UINTN) *Heap - (UINTN) Table);\r
+\r
+ //\r
+ // CHAP Secret\r
+ //\r
+ Length = (UINT16) AsciiStrLen (AuthConfig->CHAPSecret);\r
+ IScsiAddHeapItem (Heap, AuthConfig->CHAPSecret, Length);\r
+ Target->CHAPSecretLength = Length;\r
+ Target->CHAPSecretOffset = (UINT16) ((UINTN) *Heap - (UINTN) Table);\r
+\r
+ if (Target->CHAPType == ISCSI_CHAP_MUTUAL) {\r
+ //\r
+ // Reverse CHAP Name.\r
+ //\r
+ Length = (UINT16) AsciiStrLen (AuthConfig->ReverseCHAPName);\r
+ IScsiAddHeapItem (Heap, AuthConfig->ReverseCHAPName, Length);\r
+ Target->ReverseCHAPNameLength = Length;\r
+ Target->ReverseCHAPNameOffset = (UINT16) ((UINTN) *Heap - (UINTN) Table);\r
+\r
+ //\r
+ // Reverse CHAP Secret.\r
+ //\r
+ Length = (UINT16) AsciiStrLen (AuthConfig->ReverseCHAPSecret);\r
+ IScsiAddHeapItem (Heap, AuthConfig->ReverseCHAPSecret, Length);\r
+ Target->ReverseCHAPSecretLength = Length;\r
+ Target->ReverseCHAPSecretOffset = (UINT16) ((UINTN) *Heap - (UINTN) Table);\r
+ }\r
+ }\r
+\r
+ *SectionOffset = (UINT16) ((UINTN) Target - (UINTN) Table);\r
+ SectionOffset++;\r
+\r
+ //\r
+ // Advance to the next NIC/Target pair.\r
+ //\r
+ Nic = (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_NIC_STRUCTURE *) ((UINTN) Target +\r
+ IBFT_ROUNDUP (sizeof (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_TARGET_STRUCTURE)));\r
+ Target = (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_TARGET_STRUCTURE *) ((UINTN) Nic +\r
+ IBFT_ROUNDUP (sizeof (EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_NIC_STRUCTURE)));\r
+\r
+ Index++;\r
+ }\r
+}\r
+\r
+\r
+/**\r
+ Publish and remove the iSCSI Boot Firmware Table according to the iSCSI\r
+ session status.\r
+\r
+**/\r
+VOID\r
+IScsiPublishIbft (\r
+ IN VOID\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_ACPI_TABLE_PROTOCOL *AcpiTableProtocol;\r
+ EFI_ACPI_ISCSI_BOOT_FIRMWARE_TABLE_HEADER *Table;\r
+ EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp;\r
+ EFI_ACPI_DESCRIPTION_HEADER *Rsdt;\r
+ UINT8 *Heap;\r
+ UINT8 Checksum;\r
+ UINTN Index;\r
+\r
+\r
+ Status = gBS->LocateProtocol (&gEfiAcpiTableProtocolGuid, NULL, (VOID **) &AcpiTableProtocol);\r
+ if (EFI_ERROR (Status)) {\r
+ return ;\r
+ }\r
+\r
+ //\r
+ // Find ACPI table RSD_PTR from the system table.\r
+ //\r
+ for (Index = 0, Rsdp = NULL; Index < gST->NumberOfTableEntries; Index++) {\r
+ if (CompareGuid (&(gST->ConfigurationTable[Index].VendorGuid), &gEfiAcpi20TableGuid) ||\r
+ CompareGuid (&(gST->ConfigurationTable[Index].VendorGuid), &gEfiAcpi10TableGuid) ||\r
+ CompareGuid (&(gST->ConfigurationTable[Index].VendorGuid), &gEfiAcpiTableGuid)\r
+ ) {\r
+ //\r
+ // A match was found.\r
+ //\r
+ Rsdp = (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *) gST->ConfigurationTable[Index].VendorTable;\r
+ break;\r
+ }\r
+ }\r
+\r
+ if (Rsdp == NULL) {\r
+ return ;\r
+ } else {\r
+ Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN) Rsdp->RsdtAddress;\r
+ }\r
+\r
+ if (mIbftInstalled) {\r
+ Status = AcpiTableProtocol->UninstallAcpiTable (\r
+ AcpiTableProtocol,\r
+ mTableKey\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return ;\r
+ }\r
+ mIbftInstalled = FALSE;\r
+ }\r
+\r
+ //\r
+ // If there is no valid attempt configuration, just return.\r
+ //\r
+ if ((!mPrivate->EnableMpio && mPrivate->ValidSinglePathCount == 0) ||\r
+ (mPrivate->EnableMpio && mPrivate->MpioCount <= mPrivate->Krb5MpioCount)) {\r
+ return ;\r
+ }\r
+\r
+ //\r
+ // Allocate 4k bytes to hold the ACPI table.\r
+ //\r
+ Table = AllocateZeroPool (IBFT_MAX_SIZE);\r
+ if (Table == NULL) {\r
+ return ;\r
+ }\r
+\r
+ Heap = (UINT8 *) Table + IBFT_HEAP_OFFSET;\r
+\r
+ //\r
+ // Fill in the various section of the iSCSI Boot Firmware Table.\r
+ //\r
+ IScsiInitIbfTableHeader (Table, Rsdt->OemId, &Rsdt->OemTableId);\r
+ IScsiInitControlSection (Table);\r
+ IScsiFillInitiatorSection (Table, &Heap);\r
+ IScsiFillNICAndTargetSections (Table, &Heap);\r
+\r
+ Checksum = CalculateCheckSum8((UINT8 *)Table, Table->Length);\r
+ Table->Checksum = Checksum;\r
+\r
+ //\r
+ // Install or update the iBFT table.\r
+ //\r
+ Status = AcpiTableProtocol->InstallAcpiTable (\r
+ AcpiTableProtocol,\r
+ Table,\r
+ Table->Length,\r
+ &mTableKey\r
+ );\r
+ if (EFI_ERROR(Status)) {\r
+ return;\r
+ }\r
+\r
+ mIbftInstalled = TRUE;\r
+ FreePool (Table);\r
+}\r
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