Systems and methods for establishing core root of trust measurement (crtm) for basic input/output (bios) image recovery
AssigneeDell Products L.P.
InventorsBalasingh Ponraj Samuel, Ricardo L. Martinez, Richard M. Tonry, Wai-Ming Richard Chan
Life of this patent
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Abstract
Systems and methods for establishing Core Root of Trust Measurement (CRTM) for Basic Input/Output (BIOS) image recovery are described. In some embodiments, an Information Handling System (IHS) may include a processor and a BIOS coupled to the processor, the BIOS having program instructions that, upon execution, cause the IHS to: during a boot process, verify integrity of a BIOS recovery image using a CRTM, and determine whether to restore the BIOS recovery image in response to the verification.
Claims20
An Information Handling System (IHS), comprising:
- a processor;
- and
- a Basic Input/Output System (BIOS) coupled to the processor, the BIOS having program instructions stored thereon that, upon execution, cause the IHS to:
- during a boot process, verify integrity of a BIOS recovery image using a Core Root of Trust Measurement (CRTM);
- and
- determine whether to restore the BIOS recovery image in response to the verification.
A Basic I/O System (BIOS) having program instructions stored thereon that, upon execution by an Information Handling System (IHS), cause the IHS to:
- during a boot process, verify integrity of a BIOS recovery image using a Core Root of Trust Measurement (CRTM), wherein the BIOS includes a first pre-efi initialization phase (PEI) portion and a first Driver Execution Environment (DXE)/System Management Mode (SMM) portion, and wherein the BIOS recovery image includes a second DXE/SMM portion;
- and
- determine whether to restore the BIOS recovery image in response to the verification.
In an Information Handling System (IHS) comprising a Basic I/O System (BIOS) coupled to a processor, a method comprising:
- during a boot process, verifying integrity of a BIOS recovery image using a Core Root of Trust Measurement (CRTM), wherein the BIOS includes a first pre-efi initialization phase (PEI) portion and a first Driver Execution Environment (DXE)/System Management Mode (SMM) portion, and wherein the BIOS recovery image includes a second DXE/SMM portion;
- and
- determining whether to restore the BIOS recovery image in response to the verification.
Dependencies are inferred from the claim text.