Re: [Xen-devel] [PATCH v4 11/14] pnpbios: replace paravirt_enabled() check with legacy device check

[David Vrabel]

On 07/04/16 01:06, Luis R. Rodriguez wrote:
> Since we are removing paravirt_enabled() replace it with a
> logical equivalent. Even though PNPBIOS is x86 specific we
> add an arch-specific type call, which can be implemented by
> any architecture to show how other legacy attribute devices
> can later be also checked for with other ACPI legacy attribute
> flags.
> 
> This implicates the first ACPI 5.2.9.3 IA-PC Boot Architecture
> ACPI_FADT_LEGACY_DEVICES flag device, and shows how to add more.
[...]
> +struct x86_legacy_devices {
> +	int pnpbios;
> +};

It's not clear why pnpbios needs a new structure and why this structure
of devices does not have the bit for the rtc device.

David