Description

The processor state is restored from the dump created upon entrance to SMM. Note, however, that the contents of the model-specific registers are not affected. The processor leaves SMM and returns control to the interrupted application or operating system. If the processor detects any invalid state information, it enters the shutdown state. This happens in any of the following situations:

• The value stored in the State Dump Base field is not a 32Kbyte aligned address.

• Any reserved bit of CR4 is set to 1.

• Any combination of bits in CR0 is illegal; namely, (PG=1 and PE=0) or (NW=1 and CD=0).