System Management Mode (SMM)

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Abbreviation(s) and Synonym(s):

Definition(s):

A high-privilege operating mode found in x86-compatible processors used for low-level system management functions. System Management Mode is only entered after the system generates a System Management Interrupt and only executes code from a segregated block of memory.
Source(s):
NIST SP 800-147
NIST SP 800-147B

Glossary Comments

Comments about specific definitions should be sent to the authors of the linked Source publication. For NIST publications, an email is usually found within the document.

Comments about the glossary's presentation and functionality should be sent to secglossary@nist.gov.

See NISTIR 7298 Rev. 3 for additional details.

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System Management Mode (SMM)

Glossary Comments