公开(公告)号：US20220206901A1

公开(公告)日：2022-06-30

申请号：US17136549

申请日：2020-12-29

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： SHRIKANTH GANAPATHY ,  ROSS V. LA FETRA ,  JOHN KALAMATIANOS ,  SUDHANVA GURUMURTHI ,  SHAIZEEN AGA ,  VILAS SRIDHARAN ,  MICHAEL IGNATOWSKI ,  NUWAN JAYASENA

IPC: G06F11/14 ,  G06F11/10

Abstract: Providing host-based error detection capabilities in a remote execution device is disclosed. A remote execution device performs a host-offloaded operation that modifies a block of data stored in memory. Metadata is generated locally for the modified of block of data such that the local metadata generation emulates host-based metadata generation. Stored metadata for the block of data is updated with the locally generated metadata for the modified portion of the block of data. When the host performs an integrity check on the modified block of data using the updated metadata, the host does not distinguish between metadata generated by the host and metadata generated in the remote execution device.

公开(公告)号：US20220100606A1

公开(公告)日：2022-03-31

申请号：US17033398

申请日：2020-09-25

Applicant: Advanced Micro Devices, Inc.

Inventor： SUDHANVA GURUMURTHI ,  VILAS SRIDHARAN ,  SHAIZEEN AGA ,  NUWAN JAYASENA ,  MICHAEL IGNATOWSKI ,  SHRIKANTH GANAPATHY ,  JOHN KALAMATIANOS

IPC: G06F11/10 ,  H04L9/32 ,  G06F21/60

Abstract: A memory module includes one or more programmable ECC engines that may be programed by a host processing element with a particular ECC implementation. As used herein, the term “ECC implementation” refers to ECC functionality for performing error detection and subsequent processing, for example using the results of the error detection to perform error correction and to encode corrupted data that cannot be corrected, etc. The approach allows an SoC designer or company to program and reprogram ECC engines in memory modules in a secure manner without having to disclose the particular ECC implementations used by the ECC engines to memory vendors or third parties.