Re: [Devel] ACPI: Also allow ACPI table adding via initrd not only overriding

Thomas Gleixner
2014-02-19T13:02:59Z

On Wed, 19 Feb 2014, Thomas Renninger wrote:

> On Tuesday, February 18, 2014 07:59:17 PM Moore, Robert wrote:
> > Maybe not exactly "running", but at the very least, ACPICA must be
> > initialized.
> >
> > All of this of course depends on how early the table needs to be loaded.
>
> I'd say as early as possible.
> Not sure about Thomas' use case.

The case is a BIOS with complete lack of ACPI tables. So we have no
data about IOAPIC, HPET and other stuff.

The current acpi_initrd_override() call is sufficient, because its
called before acpi_boot_table_init(), which is the first function
accessing any of the tables.

Thanks,

tglx