Lines Matching full:acpi
4 ACPI considerations for PCI host bridges
7 The general rule is that the ACPI namespace should describe everything the
11 host bridges, so the ACPI namespace must describe each host bridge, the
17 described via ACPI. The OS can discover them via the standard PCI
19 devices and read and size their BARs. However, ACPI may describe PCI
24 ACPI resource description is done via _CRS objects of devices in the ACPI
34 know early in boot, before it can parse the ACPI namespace. If a new table
40 ACPI, that device will have a specific _HID/_CID that tells the OS what
55 ACPI defines a Consumer/Producer bit to distinguish the bridge registers
57 BIOSes didn't use that bit correctly. The result is that the current ACPI
81 (1) not claimed by _CRS under any other device object in the ACPI namespace
89 the address space is device-specific. An ACPI OS learns the base address
100 [1] ACPI 6.2, sec 6.1:
102 ISA bus), OSPM enumerates the devices' identifier(s) and the ACPI
106 [2] ACPI 6.2, sec 3.7:
108 ACPI Namespace looking for devices with hardware IDs.
110 Each device enumerated by ACPI includes ACPI-defined objects in the
111 ACPI Namespace that report the hardware resources the device could
117 [3] ACPI 6.2, sec 6.2:
119 for devices enumerated via ACPI. Device configuration objects provide
130 In ACPI, devices can consume resources (for example, legacy keyboards),
136 [4] ACPI 6.2, sec 6.4.3.5.1, 2, 3, 4:
146 [5] ACPI 6.2, sec 19.6.43:
157 systems, the motherboard resource would appear at the root of the ACPI
162 ACPI as a motherboard resource.
171 The MCFG table is an ACPI table that is used to communicate the base
182 an optional ACPI object that returns the 64-bit memory mapped
191 range specified in _CRS method. An ACPI name space object that contains