2 The header file provides interface definitions exposed by CSM (Compatible Support Module).
4 The CSM provides compatibility support between the Framework and traditional, legacy BIOS code
5 and allows booting a traditional OS or booting an EFI OS off a device that requires a traditional
8 These definitions are from Compatibility Support Module Spec Version 0.97.
10 Copyright (c) 2007-2009, Intel Corporation
11 All rights reserved. This program and the accompanying materials
12 are licensed and made available under the terms and conditions of the BSD License
13 which accompanies this distribution. The full text of the license may be found at
14 http://opensource.org/licenses/bsd-license.php
16 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
17 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
21 #ifndef _FRAMEWORK_LEGACY_16_H_
22 #define _FRAMEWORK_LEGACY_16_H_
28 typedef UINT8 SERIAL_MODE
;
29 typedef UINT8 PARALLEL_MODE
;
31 #define EFI_COMPATIBILITY16_TABLE_SIGNATURE SIGNATURE_32 ('I', 'F', 'E', '$')
34 /// There is a table located within the traditional BIOS in either the 0xF000:xxxx or 0xE000:xxxx
35 /// physical address range. It is located on a 16-byte boundary and provides the physical address of the
36 /// entry point for the Compatibility16 functions. These functions provide the platform-specific
37 /// information that is required by the generic EfiCompatibility code. The functions are invoked via
38 /// thunking by using EFI_LEGACY_BIOS_PROTOCOL.FarCall86() with the 32-bit physical
43 /// The string "$EFI" denotes the start of the EfiCompatibility table. Byte 0 is "I," byte
44 /// 1 is "F," byte 2 is "E," and byte 3 is "$" and is normally accessed as a DWORD or UINT32.
49 /// The value required such that byte checksum of TableLength equals zero.
54 /// The length of this table.
59 /// The major EFI revision for which this table was generated.
61 UINT8 EfiMajorRevision
;
64 /// The minor EFI revision for which this table was generated.
66 UINT8 EfiMinorRevision
;
69 /// The major revision of this table.
71 UINT8 TableMajorRevision
;
74 /// The minor revision of this table.
76 UINT8 TableMinorRevision
;
79 /// Reserved for future usage.
84 /// The segment of the entry point within the traditional BIOS for Compatibility16 functions.
86 UINT16 Compatibility16CallSegment
;
89 /// The offset of the entry point within the traditional BIOS for Compatibility16 functions.
91 UINT16 Compatibility16CallOffset
;
94 /// The segment of the entry point within the traditional BIOS for EfiCompatibility to invoke the PnP installation check.
96 UINT16 PnPInstallationCheckSegment
;
99 /// The Offset of the entry point within the traditional BIOS for EfiCompatibility to invoke the PnP installation check.
101 UINT16 PnPInstallationCheckOffset
;
104 /// EFI system resources table. Type EFI_SYSTEM_TABLE is defined in the IntelPlatform Innovation Framework for EFI
105 /// Driver Execution Environment Core Interface Specification (DXE CIS).
107 UINT32 EfiSystemTable
;
110 /// The address of an OEM-provided identifier string. The string is null terminated.
112 UINT32 OemIdStringPointer
;
115 /// The 32-bit physical address where ACPI RSD PTR is stored within the traditional
116 /// BIOS. The remained of the ACPI tables are located at their EFI addresses. The size
117 /// reserved is the maximum for ACPI 2.0. The EfiCompatibility will fill in the ACPI
118 /// RSD PTR with either the ACPI 1.0b or 2.0 values.
120 UINT32 AcpiRsdPtrPointer
;
123 /// The OEM revision number. Usage is undefined but provided for OEM module usage.
128 /// The 32-bit physical address where INT15 E820 data is stored within the traditional
129 /// BIOS. The EfiCompatibility code will fill in the E820Pointer value and copy the
130 /// data to the indicated area.
135 /// The length of the E820 data and is filled in by the EfiCompatibility code.
140 /// The 32-bit physical address where the $PIR table is stored in the traditional BIOS.
141 /// The EfiCompatibility code will fill in the IrqRoutingTablePointer value and
142 /// copy the data to the indicated area.
144 UINT32 IrqRoutingTablePointer
;
147 /// The length of the $PIR table and is filled in by the EfiCompatibility code.
149 UINT32 IrqRoutingTableLength
;
152 /// The 32-bit physical address where the MP table is stored in the traditional BIOS.
153 /// The EfiCompatibility code will fill in the MpTablePtr value and copy the data to the indicated area.
158 /// The length of the MP table and is filled in by the EfiCompatibility code.
160 UINT32 MpTableLength
;
163 /// The segment of the OEM-specific INT table/code.
165 UINT16 OemIntSegment
;
168 /// The offset of the OEM-specific INT table/code.
173 /// The segment of the OEM-specific 32-bit table/code.
178 /// The offset of the OEM-specific 32-bit table/code.
183 /// The segment of the OEM-specific 16-bit table/code.
188 /// The offset of the OEM-specific 16-bit table/code.
193 /// The segment of the TPM binary passed to 16-bit CSM.
198 /// The offset of the TPM binary passed to 16-bit CSM.
203 /// A pointer to a string identifying the independent BIOS vendor.
208 /// This field is NULL for all systems not supporting PCI Express. This field is the base
209 /// value of the start of the PCI Express memory-mapped configuration registers and
210 /// must be filled in prior to EfiCompatibility code issuing the Compatibility16 function
211 /// Compatibility16InitializeYourself().
212 /// Compatibility16InitializeYourself() is defined in Compatability16
215 UINT32 PciExpressBase
;
218 /// Maximum PCI bus number assigned.
221 } EFI_COMPATIBILITY16_TABLE
;
224 /// Functions provided by the CSM binary which communicate between the EfiCompatibility
225 /// and Compatability16 code.
229 /// Causes the Compatibility16 code to do any internal initialization required.
231 /// AX = Compatibility16InitializeYourself
232 /// ES:BX = Pointer to EFI_TO_COMPATIBILITY16_INIT_TABLE
234 /// AX = Return Status codes
236 Compatibility16InitializeYourself
= 0x0000,
239 /// Causes the Compatibility16 BIOS to perform any drive number translations to match the boot sequence.
241 /// AX = Compatibility16UpdateBbs
242 /// ES:BX = Pointer to EFI_TO_COMPATIBILITY16_BOOT_TABLE
244 /// AX = Returned status codes
246 Compatibility16UpdateBbs
= 0x0001,
249 /// Allows the Compatibility16 code to perform any final actions before booting. The Compatibility16
250 /// code is read/write.
252 /// AX = Compatibility16PrepareToBoot
253 /// ES:BX = Pointer to EFI_TO_COMPATIBILITY16_BOOT_TABLE structure
255 /// AX = Returned status codes
257 Compatibility16PrepareToBoot
= 0x0002,
260 /// Causes the Compatibility16 BIOS to boot. The Compatibility16 code is Read/Only.
262 /// AX = Compatibility16Boot
264 /// AX = Returned status codes
266 Compatibility16Boot
= 0x0003,
269 /// Allows the Compatibility16 code to get the last device from which a boot was attempted. This is
270 /// stored in CMOS and is the priority number of the last attempted boot device.
272 /// AX = Compatibility16RetrieveLastBootDevice
274 /// AX = Returned status codes
275 /// BX = Priority number of the boot device.
277 Compatibility16RetrieveLastBootDevice
= 0x0004,
280 /// Allows the Compatibility16 code rehook INT13, INT18, and/or INT19 after dispatching a legacy OpROM.
282 /// AX = Compatibility16DispatchOprom
283 /// ES:BX = Pointer to EFI_DISPATCH_OPROM_TABLE
285 /// AX = Returned status codes
286 /// BX = Number of non-BBS-compliant devices found. Equals 0 if BBS compliant.
288 Compatibility16DispatchOprom
= 0x0005,
291 /// Finds a free area in the 0xFxxxx or 0xExxxx region of the specified length and returns the address
294 /// AX = Compatibility16GetTableAddress
295 /// BX = Allocation region
296 /// 00 = Allocate from either 0xE0000 or 0xF0000 64 KB blocks.
297 /// Bit 0 = 1 Allocate from 0xF0000 64 KB block
298 /// Bit 1 = 1 Allocate from 0xE0000 64 KB block
299 /// CX = Requested length in bytes.
300 /// DX = Required address alignment. Bit mapped. First non-zero bit from the right is the alignment.
302 /// AX = Returned status codes
303 /// DS:BX = Address of the region
305 Compatibility16GetTableAddress
= 0x0006,
308 /// Enables the EfiCompatibility module to do any nonstandard processing of keyboard LEDs or state.
310 /// AX = Compatibility16SetKeyboardLeds
312 /// Bit 0 Scroll Lock 0 = Off
316 /// AX = Returned status codes
318 Compatibility16SetKeyboardLeds
= 0x0007,
321 /// Enables the EfiCompatibility module to install an interrupt handler for PCI mass media devices that
322 /// do not have an OpROM associated with them. An example is SATA.
324 /// AX = Compatibility16InstallPciHandler
325 /// ES:BX = Pointer to EFI_LEGACY_INSTALL_PCI_HANDLER structure
327 /// AX = Returned status codes
329 Compatibility16InstallPciHandler
= 0x0008
330 } EFI_COMPATIBILITY_FUNCTIONS
;
334 /// EFI_DISPATCH_OPROM_TABLE
337 UINT16 PnPInstallationCheckSegment
; ///< Pointer to the PnpInstallationCheck data structure.
338 UINT16 PnPInstallationCheckOffset
; ///< Pointer to the PnpInstallationCheck data structure.
339 UINT16 OpromSegment
; ///< The segment where the OpROM was placed. Offset is assumed to be 3.
340 UINT8 PciBus
; ///< The PCI bus.
341 UINT8 PciDeviceFunction
; ///< The PCI device * 0x08 | PCI function.
342 UINT8 NumberBbsEntries
; ///< The number of valid BBS table entries upon entry and exit. The IBV code may
343 ///< increase this number, if BBS-compliant devices also hook INTs in order to force the
344 ///< OpROM BIOS Setup to be executed.
345 VOID
*BbsTablePointer
; ///< Pointer to the BBS table.
346 UINT16 OpromDestinationSegment
; ///< The segment where the OpROM can be relocated to. If this value is 0x0000, this
347 ///< means that the relocation of this run time code is not supported.
348 } EFI_DISPATCH_OPROM_TABLE
;
351 /// EFI_TO_COMPATIBILITY16_INIT_TABLE
355 /// Starting address of memory under 1 MB. The ending address is assumed to be 640 KB or 0x9FFFF.
357 UINT32 BiosLessThan1MB
;
360 /// Starting address of the high memory block.
365 /// Length of high memory block.
367 UINT32 HiPmmMemorySizeInBytes
;
370 /// The segment of the reverse thunk call code.
372 UINT16 ReverseThunkCallSegment
;
375 /// The offset of the reverse thunk call code.
377 UINT16 ReverseThunkCallOffset
;
380 /// The number of E820 entries copied to the Compatibility16 BIOS.
382 UINT32 NumberE820Entries
;
385 /// The amount of usable memory above 1 MB, e.g., E820 type 1 memory.
387 UINT32 OsMemoryAbove1Mb
;
390 /// The start of thunk code in main memory. Memory cannot be used by BIOS or PMM.
395 /// The size of the thunk code.
397 UINT32 ThunkSizeInBytes
;
400 /// Starting address of memory under 1 MB.
405 /// Length of low Memory block.
407 UINT32 LowPmmMemorySizeInBytes
;
408 } EFI_TO_COMPATIBILITY16_INIT_TABLE
;
411 /// DEVICE_PRODUCER_SERIAL
414 UINT16 Address
; ///< I/O address assigned to the serial port
415 UINT8 Irq
; ///< IRQ assigned to the serial port.
416 SERIAL_MODE Mode
; ///< Mode of serial port. Values are defined below.
417 } DEVICE_PRODUCER_SERIAL
;
420 /// DEVICE_PRODUCER_SERIAL's modes
422 #define DEVICE_SERIAL_MODE_NORMAL 0x00
423 #define DEVICE_SERIAL_MODE_IRDA 0x01
424 #define DEVICE_SERIAL_MODE_ASK_IR 0x02
425 #define DEVICE_SERIAL_MODE_DUPLEX_HALF 0x00
426 #define DEVICE_SERIAL_MODE_DUPLEX_FULL 0x10
430 /// DEVICE_PRODUCER_PARALLEL
433 UINT16 Address
; ///< I/O address assigned to the parallel port
434 UINT8 Irq
; ///< IRQ assigned to the parallel port.
435 UINT8 Dma
; ///< DMA assigned to the parallel port.
436 PARALLEL_MODE Mode
; ///< Mode of the parallel port. Values are defined below.
437 } DEVICE_PRODUCER_PARALLEL
;
440 /// DEVICE_PRODUCER_PARALLEL's modes
442 #define DEVICE_PARALLEL_MODE_MODE_OUTPUT_ONLY 0x00
443 #define DEVICE_PARALLEL_MODE_MODE_BIDIRECTIONAL 0x01
444 #define DEVICE_PARALLEL_MODE_MODE_EPP 0x02
445 #define DEVICE_PARALLEL_MODE_MODE_ECP 0x03
449 /// DEVICE_PRODUCER_FLOPPY
452 UINT16 Address
; ///< I/O address assigned to the floppy
453 UINT8 Irq
; ///< IRQ assigned to the floppy.
454 UINT8 Dma
; ///< DMA assigned to the floppy.
455 UINT8 NumberOfFloppy
; ///< Number of floppies in the system.
456 } DEVICE_PRODUCER_FLOPPY
;
459 /// LEGACY_DEVICE_FLAGS
462 UINT32 A20Kybd
: 1; ///< A20 controller by keyboard controller.
463 UINT32 A20Port90
: 1; ///< A20 controlled by port 0x92.
464 UINT32 Reserved
: 30; ///< Reserved for future usage.
465 } LEGACY_DEVICE_FLAGS
;
468 /// DEVICE_PRODUCER_DATA_HEADER
471 DEVICE_PRODUCER_SERIAL Serial
[4]; ///< Data for serial port x. Type DEVICE_PRODUCER_SERIAL is defined below.
472 DEVICE_PRODUCER_PARALLEL Parallel
[3]; ///< Data for parallel port x. Type DEVICE_PRODUCER_PARALLEL is defined below.
473 DEVICE_PRODUCER_FLOPPY Floppy
; ///< Data for floppy. Type DEVICE_PRODUCER_FLOPPY is defined below.
474 UINT8 MousePresent
; ///< Flag to indicate if mouse is present.
475 LEGACY_DEVICE_FLAGS Flags
; ///< Miscellaneous Boolean state information passed to CSM.
476 } DEVICE_PRODUCER_DATA_HEADER
;
482 UINT16 Raw
[256]; ///< Raw data from the IDE IdentifyDrive command.
490 /// Status of IDE device. Values are defined below. There is one HDD_INFO structure
491 /// per IDE controller. The IdentifyDrive is per drive. Index 0 is master and index
497 /// PCI bus of IDE controller.
502 /// PCI device of IDE controller.
507 /// PCI function of IDE controller.
512 /// Command ports base address.
514 UINT16 CommandBaseAddress
;
517 /// Control ports base address.
519 UINT16 ControlBaseAddress
;
522 /// Bus master address
524 UINT16 BusMasterAddress
;
529 /// Data that identifies the drive data, one per possible attached drive
531 ATAPI_IDENTIFY IdentifyDrive
[2];
535 /// HDD_INFO status bits
537 #define HDD_PRIMARY 0x01
538 #define HDD_SECONDARY 0x02
539 #define HDD_MASTER_ATAPI_CDROM 0x04
540 #define HDD_SLAVE_ATAPI_CDROM 0x08
541 #define HDD_MASTER_IDE 0x20
542 #define HDD_SLAVE_IDE 0x40
543 #define HDD_MASTER_ATAPI_ZIPDISK 0x10
544 #define HDD_SLAVE_ATAPI_ZIPDISK 0x80
550 UINT16 OldPosition
: 4; ///< Prior priority.
551 UINT16 Reserved1
: 4; ///< Reserved for future use.
552 UINT16 Enabled
: 1; ///< If 0, ignore this entry.
553 UINT16 Failed
: 1; ///< 0 = Not known if boot failure occurred.
554 ///< 1 = Boot attempted failed.
557 /// State of media present.
558 /// 00 = No bootable media is present in the device.
559 /// 01 = Unknown if a bootable media present.
560 /// 10 = Media is present and appears bootable.
563 UINT16 MediaPresent
: 2;
564 UINT16 Reserved2
: 4; ///< Reserved for future use.
568 /// BBS_TABLE, device type values & boot priority values
572 /// The boot priority for this boot device. Values are defined below.
577 /// The PCI bus for this boot device.
582 /// The PCI device for this boot device.
587 /// The PCI function for the boot device.
592 /// The PCI class for this boot device.
597 /// The PCI Subclass for this boot device.
602 /// Segment:offset address of an ASCIIZ description string describing the manufacturer.
604 UINT16 MfgStringOffset
;
607 /// Segment:offset address of an ASCIIZ description string describing the manufacturer.
609 UINT16 MfgStringSegment
;
612 /// BBS device type. BBS device types are defined below.
617 /// Status of this boot device. Type BBS_STATUS_FLAGS is defined below.
619 BBS_STATUS_FLAGS StatusFlags
;
622 /// Segment:Offset address of boot loader for IPL devices or install INT13 handler for
625 UINT16 BootHandlerOffset
;
628 /// Segment:Offset address of boot loader for IPL devices or install INT13 handler for
631 UINT16 BootHandlerSegment
;
634 /// Segment:offset address of an ASCIIZ description string describing this device.
636 UINT16 DescStringOffset
;
639 /// Segment:offset address of an ASCIIZ description string describing this device.
641 UINT16 DescStringSegment
;
646 UINT32 InitPerReserved
;
649 /// The use of these fields is IBV dependent. They can be used to flag that an OpROM
650 /// has hooked the specified IRQ. The OpROM may be BBS compliant as some SCSI
651 /// BBS-compliant OpROMs also hook IRQ vectors in order to run their BIOS Setup
653 UINT32 AdditionalIrq13Handler
;
656 /// The use of these fields is IBV dependent. They can be used to flag that an OpROM
657 /// has hooked the specified IRQ. The OpROM may be BBS compliant as some SCSI
658 /// BBS-compliant OpROMs also hook IRQ vectors in order to run their BIOS Setup
660 UINT32 AdditionalIrq18Handler
;
663 /// The use of these fields is IBV dependent. They can be used to flag that an OpROM
664 /// has hooked the specified IRQ. The OpROM may be BBS compliant as some SCSI
665 /// BBS-compliant OpROMs also hook IRQ vectors in order to run their BIOS Setup
667 UINT32 AdditionalIrq19Handler
;
670 /// The use of these fields is IBV dependent. They can be used to flag that an OpROM
671 /// has hooked the specified IRQ. The OpROM may be BBS compliant as some SCSI
672 /// BBS-compliant OpROMs also hook IRQ vectors in order to run their BIOS Setup
674 UINT32 AdditionalIrq40Handler
;
675 UINT8 AssignedDriveNumber
;
676 UINT32 AdditionalIrq41Handler
;
677 UINT32 AdditionalIrq46Handler
;
683 /// BBS device type values
685 #define BBS_FLOPPY 0x01
686 #define BBS_HARDDISK 0x02
687 #define BBS_CDROM 0x03
688 #define BBS_PCMCIA 0x04
690 #define BBS_EMBED_NETWORK 0x06
691 #define BBS_BEV_DEVICE 0x80
692 #define BBS_UNKNOWN 0xff
696 /// BBS boot priority values
698 #define BBS_DO_NOT_BOOT_FROM 0xFFFC
699 #define BBS_LOWEST_PRIORITY 0xFFFD
700 #define BBS_UNPRIORITIZED_ENTRY 0xFFFE
701 #define BBS_IGNORE_ENTRY 0xFFFF
709 /// Access mechanism used to generate the soft SMI. Defined types are below. The other
710 /// values are reserved for future usage.
715 /// Size of "port" in bits. Defined values are below.
717 UINT16 PortGranularity
: 3;
720 /// Size of data in bits. Defined values are below.
722 UINT16 DataGranularity
: 3;
725 /// Reserved for future use.
731 /// SMM_ATTRIBUTES type values
733 #define STANDARD_IO 0x00
734 #define STANDARD_MEMORY 0x01
738 /// SMM_ATTRIBUTES port size constants
740 #define PORT_SIZE_8 0x00
741 #define PORT_SIZE_16 0x01
742 #define PORT_SIZE_32 0x02
743 #define PORT_SIZE_64 0x03
747 /// SMM_ATTRIBUTES data size constants
749 #define DATA_SIZE_8 0x00
750 #define DATA_SIZE_16 0x01
751 #define DATA_SIZE_32 0x02
752 #define DATA_SIZE_64 0x03
756 /// SMM_FUNCTION & relating constants
759 UINT16 Function
: 15;
764 /// SMM_FUNCTION Function constants
766 #define INT15_D042 0x0000
767 #define GET_USB_BOOT_INFO 0x0001
768 #define DMI_PNP_50_57 0x0002
772 /// SMM_FUNCTION Owner constants
774 #define STANDARD_OWNER 0x0
775 #define OEM_OWNER 0x1
781 * This structure assumes both port and data sizes are 1. SmmAttribute must be
782 * properly to reflect that assumption.
786 /// Describes the access mechanism, SmmPort, and SmmData sizes. Type
787 /// SMM_ATTRIBUTES is defined below.
789 SMM_ATTRIBUTES SmmAttributes
;
792 /// Function Soft SMI is to perform. Type SMM_FUNCTION is defined below.
794 SMM_FUNCTION SmmFunction
;
797 /// SmmPort size depends upon SmmAttributes and ranges from2 bytes to 16 bytes
802 /// SmmData size depends upon SmmAttributes and ranges from2 bytes to 16 bytes
811 UINT16 NumSmmEntries
; ///< Number of entries represented by SmmEntry.
812 SMM_ENTRY SmmEntry
; ///< One entry per function. Type SMM_ENTRY is defined below.
820 /// This bit set indicates that the ServiceAreaData is valid.
822 UINT8 DirectoryServiceValidity
: 1;
825 /// This bit set indicates to use the Reserve Area Boot Code Address (RACBA) only if
826 /// DirectoryServiceValidity is 0.
828 UINT8 RabcaUsedFlag
: 1;
831 /// This bit set indicates to execute hard disk diagnostics.
833 UINT8 ExecuteHddDiagnosticsFlag
: 1;
836 /// Reserved for future use. Set to 0.
846 /// This field contains the bit-mapped attributes of the PARTIES information. Type
847 /// UDC_ATTRIBUTES is defined below.
849 UDC_ATTRIBUTES Attributes
;
852 /// This field contains the zero-based device on which the selected
853 /// ServiceDataArea is present. It is 0 for master and 1 for the slave device.
858 /// This field contains the zero-based index into the BbsTable for the parent device.
859 /// This index allows the user to reference the parent device information such as PCI
860 /// bus, device function.
862 UINT8 BbsTableEntryNumberForParentDevice
;
865 /// This field contains the zero-based index into the BbsTable for the boot entry.
867 UINT8 BbsTableEntryNumberForBoot
;
870 /// This field contains the zero-based index into the BbsTable for the HDD diagnostics entry.
872 UINT8 BbsTableEntryNumberForHddDiag
;
875 /// The raw Beer data.
880 /// The raw data of selected service area.
882 UINT8 ServiceAreaData
[64];
885 #define EFI_TO_LEGACY_MAJOR_VERSION 0x02
886 #define EFI_TO_LEGACY_MINOR_VERSION 0x00
887 #define MAX_IDE_CONTROLLER 8
890 /// EFI_TO_COMPATIBILITY16_BOOT_TABLE
893 UINT16 MajorVersion
; ///< The EfiCompatibility major version number.
894 UINT16 MinorVersion
; ///< The EfiCompatibility minor version number.
895 UINT32 AcpiTable
; ///< Location of the RSDT ACPI table. < 4G range
896 UINT32 SmbiosTable
; ///< Location of the SMBIOS table in EFI memory. < 4G range
897 UINT32 SmbiosTableLength
;
901 DEVICE_PRODUCER_DATA_HEADER SioData
; ///< Standard traditional device information.
902 UINT16 DevicePathType
; ///< The default boot type.
903 UINT16 PciIrqMask
; ///< Mask of which IRQs have been assigned to PCI.
904 UINT32 NumberE820Entries
; ///< Number of E820 entries. The number can change from the
905 ///< Compatibility16InitializeYourself() function.
907 // Controller & Drive Identify[2] per controller information
909 HDD_INFO HddInfo
[MAX_IDE_CONTROLLER
]; ///< Hard disk drive information, including raw Identify Drive data.
910 UINT32 NumberBbsEntries
; ///< Number of entries in the BBS table
911 UINT32 BbsTable
; ///< Pointer to the BBS table. Type BBS_TABLE is defined below.
912 UINT32 SmmTable
; ///< Pointer to the SMM table. Type SMM_TABLE is defined below.
913 UINT32 OsMemoryAbove1Mb
; ///< The amount of usable memory above 1 MB, i.e. E820 type 1 memory. This value can
914 ///< differ from the value in EFI_TO_COMPATIBILITY16_INIT_TABLE as more
915 ///< memory may have been discovered.
916 UINT32 UnconventionalDeviceTable
; ///< Information to boot off an unconventional device like a PARTIES partition. Type
917 ///< UD_TABLE is defined below.
918 } EFI_TO_COMPATIBILITY16_BOOT_TABLE
;
921 /// EFI_LEGACY_INSTALL_PCI_HANDLER
924 UINT8 PciBus
; ///< The PCI bus of the device.
925 UINT8 PciDeviceFun
; ///< The PCI device in bits 7:3 and function in bits 2:0.
926 UINT8 PciSegment
; ///< The PCI segment of the device.
927 UINT8 PciClass
; ///< The PCI class code of the device.
928 UINT8 PciSubclass
; ///< The PCI subclass code of the device.
929 UINT8 PciInterface
; ///< The PCI interface code of the device.
933 UINT8 PrimaryIrq
; ///< The primary device IRQ.
934 UINT8 PrimaryReserved
; ///< Reserved.
935 UINT16 PrimaryControl
; ///< The primary device control I/O base.
936 UINT16 PrimaryBase
; ///< The primary device I/O base.
937 UINT16 PrimaryBusMaster
; ///< The primary device bus master I/O base.
941 UINT8 SecondaryIrq
; ///< The secondary device IRQ.
942 UINT8 SecondaryReserved
; ///< Reserved.
943 UINT16 SecondaryControl
; ///< The secondary device control I/O base.
944 UINT16 SecondaryBase
; ///< The secondary device I/O base.
945 UINT16 SecondaryBusMaster
; ///< The secondary device bus master I/O base.
946 } EFI_LEGACY_INSTALL_PCI_HANDLER
;
949 // Restore default pack value
953 #endif /* _FRAMEWORK_LEGACY_16_H_ */