Data Fields | |
EFI_PHYSICAL_ADDRESS | PhysicalStart |
EFI_PHYSICAL_ADDRESS | CpuStart |
UINT64 | PhysicalSize |
UINT64 | RegionState |
Designates the address of the SMRAM, as seen by software executing on the processors. This address may or may not match PhysicalStart.
Describes the number of bytes in the SMRAM region.
Designates the physical address of the SMRAM in memory. This view of memory is the same as seen by I/O-based agents, for example, but it may not be the address seen by the processors.
Describes the accessibility attributes of the SMRAM. These attributes include the hardware state (e.g., Open/Closed/Locked), capability (e.g., cacheable), logical allocation (e.g., allocated), and pre-use initialization (e.g., needs testing/ECC initialization).