Re: [PATCH v2 3/7] arm/virt/acpi: remove _ADR from devices identified by _HID

2020-02-02 Thread Michael S. Tsirkin
On Mon, Feb 03, 2020 at 08:15:01AM +0800, Heyi Guo wrote: > According to ACPI spec, _ADR should be used for device on a bus that > has a standard enumeration algorithm, but not for device which is on > system bus and must be enumerated by OSPM. And it is not recommended > to contain both _HID and _

[PATCH v2 3/7] arm/virt/acpi: remove _ADR from devices identified by _HID

2020-02-02 Thread Heyi Guo
According to ACPI spec, _ADR should be used for device on a bus that has a standard enumeration algorithm, but not for device which is on system bus and must be enumerated by OSPM. And it is not recommended to contain both _HID and _ADR in a single device. See ACPI 6.3, section 6.1, top of page 34