Re: [PATCH] ACPI, APEI, Add APEI _OSC support

Matthew Garrett
2011-06-16T01:57:49Z

On Thu, Jun 16, 2011 at 09:55:58AM +0800, Huang Ying wrote:
> On 06/16/2011 09:38 AM, Matthew Garrett wrote:
> > I think we probably need to make the HEST decision early, and use that
> > to decide how to make the generic call. Our experience has been that
> > many firmware vendors only expect _OSC to be called once with any given
> > UUID - multiple calls can result in unexpected behaviour.
>
> acpi_bus_osc_support is called via subsys_initcall. It is a little hard
> to do all checking before that. Is it possible to call
> acpi_bus_osc_support later?

Yeah, this is going to be a problem. We have the HEST available at this
point so we ought to be able to parse it, though. I'll take a look
tomorrow.

--
Matthew Garrett | mjg59@srcf.ucam.org