ACPI is a widely adopted standard that was first introduced in 1996. It allows the operating system to control the power state of various hardware components, such as CPUs, memory, and peripherals. ACPI provides a hierarchical namespace that describes the system's hardware components and their relationships.
Modern ACPI tables use BaseAddrLow and BaseAddrHigh fields to define a complete 64-bit physical address for system resources. Deep Dive: The ACPI 6.4 Specification acpi 64
The following table summarizes the major technical additions introduced in version 6.4: ACPI is a widely adopted standard that was