Intel Extensible Firmware Interface Specification page 115

Description
The ResetSystem()function resets the entire platform, including all processors and devices, and
reboots the system.
Calling this interface with
all circuitry within the system to its initial state. This type of reset is asynchronous to system
operation and operates without regard to cycle boundaries.
system power cycle.
Calling this interface with
The processors are set to their initial state, and pending cycles are not corrupted.
The platform may optionally log the parameters from any non-normal reset that occurs.
The function does not return.
SystemReset()
Version 1.02
of
ResetType EfiResetCold
of
ResetType EfiResetWarm
12/12/00
causes a system-wide reset. This sets
is tantamount to a
EfiResetCold
causes a system-wide initialization.
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