Techniques to provide a secure system management mode

A non-transitory computer-readable storage medium comprising a plurality of instructions that when executed enable processing circuitry to:

• allocate a portion of memory as system management random access memory (SMRAM) including a system management interrupt (SMI) handler for a system management mode (SMM), the SMI handler to handle SMIs for the SMM,
• generate a page table for the SMM, the page table comprising one or more mapped pages to map virtual addresses to physical addresses for the SMM, and
• set one or more page table attributes for the page table to prevent a malicious code attack on the SMM.

A computer-implemented method, comprising:

• allocating a portion of memory as system management random access memory (SMRAM) including a system management interrupt (SMI) handler for a system management mode (SMM), the SMI handler to handle SMIs for the SMM,
• generating a page table for the SMM, the page table comprising one or more mapped pages to map virtual addresses to physical addresses for the SMM, and
• setting one or more page table attributes for the page table to prevent a malicious code attack on the SMM.