1、American National StandardDeveloped byfor Information Technology BIOS EnhancedDisk Drive Specification - 4 (EDD-4) Amendment 1INCITS 480-2011/AM1-2015INCITS 480-2011/AM1-2015INCITS 480-2011/AM1-2015Supplement toINCITS 480-2011American National Standardfor Information Technology BIOS Enhanced Disk Dr
2、iveSpecification - 4 (EDD-4) Amendment 1SecretariatInformation Technology Industry CouncilApproved October 2, 2015 American National Standards Institute, Inc.Approval of an American National Standard requires review by ANSI that therequirements for due process, consensus, and other criteria for appr
3、oval havebeen met by the standards developer.Consensus is established when, in the judgement of the ANSI Board ofStandards Review, substantial agreement has been reached by directly andmaterially affected interests. Substantial agreement means much more thana simple majority, but not necessarily una
4、nimity. Consensus requires that allviews and objections be considered, and that a concerted effort be madetowards their resolution.The use of American National Standards is completely voluntary; theirexistence does not in any respect preclude anyone, whether he has approvedthe standards or not, from
5、 manufacturing, marketing, purchasing, or usingproducts, processes, or procedures not conforming to the standards.The American National Standards Institute does not develop standards andwill in no circumstances give an interpretation of any American NationalStandard. Moreover, no person shall have t
6、he right or authority to issue aninterpretation of an American National Standard in the name of the AmericanNational Standards Institute. Requests for interpretations should beaddressed to the secretariat or sponsor whose name appears on the titlepage of this standard.CAUTION NOTICE: This American N
7、ational Standard may be revised orwithdrawn at any time. The procedures of the American National StandardsInstitute require that action be taken periodically to reaffirm, revise, orwithdraw this standard. Purchasers of American National Standards mayreceive current information on all standards by ca
8、lling or writing the AmericanNational Standards Institute.American National StandardPublished byAmerican National Standards Institute, Inc.25 West 43rd Street, New York, NY 10036Copyright 2015 by Information Technology Industry Council (ITI)All rights reserved.No part of this publication may be repr
9、oduced in anyform, in an electronic retrieval system or otherwise,without prior written permission of ITI, 1101 K Street NW, Suite 610, Washington, DC 20005. Printed in the United States of AmericaCAUTION: The developers of this standard have requested that holders of patents that may berequired for
10、 the implementation of the standard disclose such patents to the publisher. However,neither the developers nor the publisher have undertaken a patent search in order to identifywhich, if any, patents may apply to this standard. As of the date of publication of this standardand following calls for th
11、e identification of patents that may be required for the implementation ofthe standard, no such claims have been made. No further patent search is conducted by the de-veloper or publisher in respect to any standard it processes. No representation is made or impliedthat licenses are not required to a
12、void infringement in the use of this standard.iForeword (This foreword is not part of American National Standard INCITS 480-2011/AM1-2015.)Requests for interpretation, suggestions for improvement or addenda, or defect re-ports are welcome. They should be sent to InterNational Committee for Informati
13、onTechnology Standards (INCITS), ITI, 1101 K Street, NW, Suite 610, Washington, DC20005.This standard was processed and approved for submittal to ANSI by INCITS. Com-mittee approval of this standard does not necessarily imply that all committee mem-bers voted for its approval. At the time it approve
14、d this standard, INCITS had thefollowing members:Philip Wennblom, ChairJennifer Garner, SecretaryOrganization Represented Name of RepresentativeAdobe Systems, Inc Scott FosheeSteve Zilles (Alt.)AIM Global, Inc. Steve HallidayChuck Evanhoe (Alt.)Mary Lou Bosco (Alt.)Dan Kimball (Alt.)Apple Helene Wor
15、kmanMarc Braner (Alt.)David Singer (Alt.)Distributed Management Task Force (DMTF) John Crandall Jeff Hilland (Alt.)Lawrence Lamers (Alt.)EMC Corporation . Gary Robinson Stephen Diamond (Alt.)Farance, Inc Frank Farance Timothy Schoechle (Alt.)Futurewei Technologies, Inc. Yi ZhaoTimothy Jeffries (Alt.
16、)Wilbert Adams (Alt.)GS1GO. Frank SharkeyCharles Biss (Alt.)Hewlett-Packard Company Karen Higginbottom Paul Jeran (Alt.)IBM Corporation Steve HolbrookAlexander Tarpinian (Alt.)IEEE . Jodie HaaszDon Wright (Alt.)Noelle Humenick (Alt.)Christy Bahn (Alt.)Justin Casto (Alt.)Intel Corporation . Philip We
17、nnblom Grace Wei (Alt.)Stephen Balogh (Alt.)Microsoft Corporation . Laura Lindsay John Calhoon (Alt.)National Institute of Standards & Technology Michael HoganSal Francomacaro (Alt.)Wo Chang (Alt.)Elaine Newton (Alt.)Oracle Corporation . Donald R. Deutsch Jim Melton (Alt.)Michael Kavanaugh (Alt.)Tos
18、hihiro Suzuki (Alt.)Peter Lord (Alt.)Anthony DiCenzo (Alt.)Patrick Curran (Alt.)Purdue University Stephen Elliott Kevin OConnor (Alt.)iiOrganization Represented Name of RepresentativeTelecommunications Industry Association (TIA) Florence OtienoStephanie Montgomery (Alt.)US Department of Defense Denn
19、is DeveraLeonard Levine (Alt.)US Department of Homeland Security . Peter Shebell Gregg Piermarini (Alt.)Juan Gonzalez (Alt.)Technical Committee T13 on ATA Interfaces, that reviewed this standard, had the following members and additional participants:Dan Colegrove, ChairJim Hatfield, Vice-ChairWillia
20、m Martin, SecretaryOrganization Represented Name of RepresentativeAMD Joe ScanlonAvago Technologies. George PenokieBrad Besmer (Alt.)Ross Stenfort (Alt.)Dell, Inc. Kevin MarksFrank Widjaja (Alt.)EMC Corporation David BlackErin Bournival (Alt.)Jim Espy (Alt.)Gary Robinson (Alt.)Google Peter ChangHewl
21、ett-Packard Company. Erik MoralesCurtis Ballard (Alt.)Wayne Bellamy (Alt.)Jeff Wolford (Alt.)HGST Paul SuhlerJoe Breher (Alt.)David Brewer (Alt.)Chet Mercado (Alt.)Intel Corporation. James BoydSteven Wells (Alt.)Marvell Semiconductor, Inc. . John SchadeggPete Dinh (Alt.)Kevin Tonthat (Alt.)Paul Wass
22、enberg (Alt.)Micron Technology, Inc. . John GeldmanJim Cooke (Alt.)Andrew Dunn (Alt.)Neal Galbo (Alt.)Michael George (Alt.)Alan Haffner (Alt.)Daniel Hubbard (Alt.)Jafar Naji (Alt.)Microsoft Corporation . Lee PrewittDouglas King (Alt.)NetApp, Inc. Frederick KnightTim Emami (Alt.)Ali Yavari (Alt.)OCZ
23、Technology Group, Inc. Tom FriendPMC-Sierra. Neil WanamakerAdnan Jiwani (Alt.)Qlogic Corporation Craig CarlsonQNAP Systems, Inc Ming-chih ChangCH Yang (Alt.)Samsung Semiconductor, Inc. (SSI) William MartinHeeChang Cho (Alt.)KeunSoo Jo (Alt.)MiKyeong Kang (Alt.)Jake Lee (Alt.)iiiOrganization Represen
24、ted Name of RepresentativeSanDisk IL Ltd.Avraham ShimorDave Landsman (Alt.)Yoni Shternhell (Alt.)Seagate Technology .Jim HatfieldGerald Houlder (Alt.)Tom Lenny (Alt.)SK Hynix .Alan FangSuna Shin (Alt.)Toshiba America Electronic Components, Inc. .Patrick HeryDan Colgrove (Alt.)Western Digital Corpora
25、tion Curtis StevensMarvin DeForest (Alt.)Nathan Obr (Alt.)Ralph Weber (Alt.)iv1 AMERICAN NATIONAL STANDARD INCITS 480-2011/AM1-2015American National Standardfor Information Technology BIOS Enhanced Disk DriveSpecification - 4 (EDD-4) Amendment 1Amendment to INCITS 480-2011Summary of ChangesThe chang
26、es in this amendment to EDD-4 allow the published standard to be used by NVM Express products as follows. A new Device path definition for NVMe is added to Offset 40 of Table 23 in section 8.20.1 “Get Device Parameters“. An NVMe-specific definition for the Device path is appended to Table 25 in sect
27、ion 8.20.2 “Interface Path“.INCITS 480-2011/AM 1-20152Page 48Replace table 23 with the following.Table 23 Result Buffer (page 1 of 2)Offset Type Description0 Word The caller shall set this value to the maximum Result Buffer length, in bytes. If the length of this buffer is less than 30 bytes, this f
28、unction shall not return the pointer to Drive Parameter Table (DPT) extension. If the buffer length is 30 or greater on entry, it is set to 30 on exit. If the buffer length is between 26 and 29, it is set to 26 on exit. If the buffer length is less than 26 on entry an error is returned.2 Word Inform
29、ation Flags. A value of one in a bit indicates that the feature is available. A value of zero in a bit indicates the feature is not available and shall operate in a manner consistent with the conventional INT 13h interface.Bit Description15:8 Reserved7 BIOS calls INT13 FN 50h to access the device6 D
30、evice geometry is set to maximum and no media is present when this bit is set to one5 Media is lockable4 Device has media change notification3 Device supports write verify2 Media is removable. Bits 4-6 are not valid if this bit is cleared to zero1 The geometry returned in bytes 4-15 is valid0 DMA bo
31、undary errors are handled transparently4 DWord Number of default cylinders. The content of this field is one greater than the maximum cylinder number. INT 13h FN 08h is used to find the logical number of cylinders.8 DWord Number of default heads. The content of this field is one greater than the max
32、imum head number. INT 13h FN 08h is used to find the logical number of heads.12 DWord Number of default sectors per track. The content of this field is the same as the maximum sector number because sector addresses are 1 based. INT 13h FN 08h is used to find the logical number of sectors per track.1
33、6 QWord Number of sectors. This is one greater than the maximum sector number. If this field is greater than 15,482,880 then word 2, bit 1 is cleared to zero.24 Word Number of bytes in a sector.26 DWord Pointer to the Device Parameter Table Extension (DPTE). This field follows the seg:offset address
34、 format. The DPTE shall only be present if INT 13h, FN 41h, CX register bit 2 is set to one. This field points to a temporary buffer that the BIOS may invalidate on subsequent INT 13h calls. If the length of this result buffer is less than 30, the DPTE shall not be present. This field is only used f
35、or INT 13h based systems configured with ATA or ATAPI devices.30 Word 0BEDDh - Key, indicates presence of Device Path Information32 Byte Length of Device Path Information including the key. The content of this byte is 2Ch33 Byte Reserved34 Word ReservedINCITS 480-2011/AM 1-20153 36 ASCII Host bus ty
36、pe, 4 bytes. ASCII data is left justified and padded with the value 20hPCI PCI Local Bus 50h 43h 49h 20hISA Conventional 16 bit fixed bus 49h 53h 41h 20hPCIX PCI-X Bus 50h 43h 49h 58hIBND Infiniband 49h 42h 4Eh 44hXPRS PCI Express 58h 50h 52h 53hHTPT HyperTransport 48h 54h 50h 54h40 ASCII Interface
37、type, 8 bytes. ASCII data is left justified and padded with the value 20hATA ATA/ATAPI compliant device using ATA commands41h 54h 41h 20h 20h 20h 20h 20hATAPI ATA/ATAPI compliant device using ATAPI commands41h 54h 41h 50h 49h 20h 20h 20hSCSI SCSI compliant device 53h 43h 53h 49h 20h 20h 20h 20hUSB U
38、SB Mass Storage compliant device 55h 53h 42h 20h 20h 20h 20h 20h1394 1394 Mass Storage device 31h 33h 39h 34h 20h 20h 20h 20hFIBRE Fibre Channel 46h 49h 42h 52h 45h 20h 20h 20hI2O Intelligent Input/Output 49h 32h 4Fh 20h 20h 20h 20h 20hRAID Redundant Array of Inexpensive Disks (RAID) member52h 41h 4
39、9h 44h 20h 20h 20h 20hSATA Serial ATA device in non-PATA emulation mode53h 41h 54h 41h 20h 20h 20h 20hSAS Serial Attached SCSI 53h 41h 53h 20h 20h 20h 20h 20hNVMe NVM Express 4Eh 56h 4Dh 45h 20h 20h 20h 20h48 Interface Path (see table 24)56 Device Path (see table 25)72 Byte Reserved73 Byte Checksum
40、for Device Path Information includes the 0BEDDh signature. The content of this field is the twos complement of the unsigned sum of offset 30 through 72. The unsigned sum of offset 30 through 73 is 0.Table 23 Result Buffer (page 2 of 2)Offset Type DescriptionINCITS 480-2011/AM 1-20154Page 52Replace t
41、able 25 with the following.Table 25 Device Path Definitions (page 1 of 2)Interface Type Offset Type DefinitionATA 56 ByteValue Description00h ATA Device 001h ATA Device 102hFFh Reserved57 Byte Reserved58 Word Reserved60 DWord Reserved64 QWord ReservedATAPI 56 ByteValue Description00h ATAPI Device 00
42、1h ATAPI Device 102hFFh Reserved57 Byte Logical Unit Number58 Byte Reserved59 Byte Reserved60 DWord Reserved64 QWord ReservedSCSI 56 Word Physical Unit Number/SCSI ID58 QWord Logical Unit Number66 Word Reserved68 DWord ReservedUSB 56 QWord 64-bit Serial Number as defined in the USB Mass Storage spec
43、ifications64 QWord Reserved1394 56 QWord 64-bit Extended Unique Identifier (EUI-64)64 QWord ReservedFIBRE 56 QWord 64-bit Worldwide Identifier (WWID)64 QWord Logical Unit NumberI2O 56 QWord 64-bit Identity Tag64 QWord ReservedRAID 56 DWord RAID array number of which this device is a member60 DWord R
44、eserved64 QWord ReservedINCITS 480-2011/AM 1-20155 SATA 56 Byte Port numberValue Description00h1Fh SATA controller port number to which the device is connected. If the device is behind a port multiplier then SATA controller port number shall represent the SATA controller port number to which the por
45、t multiplier is connected.20hFFh Reserved57 Byte Port Multiplier numberValue Description00h If device is connected directly to the SATA controller, this byte shall be 00h01h0Fh Port Multiplier port number10hFFh Reserved58 Word Reserved60 DWord Reserved64 QWord ReservedSAS 56 QWord 64-bit SAS address64 QWord Logical Unit NumberNVMe 56 DWord Namespace Identifier (NSID)60 QWord IEEE Extended Unique Identifier (i.e., EUI-64)68 DWord ReservedTable 25 Device Path Definitions (page 2 of 2)Interface Type Offset Type Definition
