ATTR_IS_SIMULATION
TARGET_TYPE_SYSTEM
env: 1 = Awan/HWSimulator. 0 = Simics/RealHW.
uint8
ATTR_EXECUTION_PLATFORM
TARGET_TYPE_SYSTEM
Which execution platform the HW Procedure is running on
Some HWPs (e.g. special wakeup) use different registers for different
platforms to avoid arbitration problems when multiple platforms do
the same thing concurrently
uint8
HOST = 0x01, FSP = 0x02, OCC = 0x03