Re: [BUG] Linux 3.14 fails to boot with new EFI changes

[Borislav Petkov]

On Thu, Jan 30, 2014 at 02:23:46PM -0800, H. Peter Anvin wrote:
> On 01/30/2014 02:19 PM, Alex Thorlton wrote:
> >
> > The quick answer is I think it is a virtual address, because it does
> > not work in physical mode. If you ever see "virtefi" on the RHEL
> > bootline it is because RH switched the default to physical mode,
> > which caused UV to not boot. "virtefi" forced it back to virtual
> > mode.
> > 
> That is interesting, as it is definitely not the direction we have been
> going in within the Linux community.

Right, for the new scheme to work, we'll have to map the region
containing the code for uv_systab->function in order to do all those
uv_bios_call()'s. Physical/virtual shouldn't matter all that much
because we map the region *both* as a 1:1 map and in virtual space too.

Can SGI please give us a reliable way to do that during boot?

Thanks.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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