Computer Security Resource Center

Computer Security Resource Center

Computer Security
Resource Center

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System Management Mode (SMM)

Abbreviation(s) and Synonym(s):

SMM

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