linux-kernel - Re: [PATCH -v2 0/4] EFI 1:1 mapping

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Message-ID: <20130620170124.GA19877@pd.tnic>
Date:	Thu, 20 Jun 2013 19:01:24 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	James Bottomley <James.Bottomley@...senPartnership.com>,
	Ingo Molnar <mingo@...nel.org>,
	Linux EFI <linux-efi@...r.kernel.org>,
	Matt Fleming <matt@...sole-pimps.org>, X86 ML <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>, Borislav Petkov <bp@...e.de>
Subject: Re: [PATCH -v2 0/4] EFI 1:1 mapping

On Thu, Jun 20, 2013 at 05:54:26PM +0100, Matthew Garrett wrote:
> On Thu, Jun 20, 2013 at 09:46:15AM -0700, James Bottomley wrote:
> 
> > Unless you can think of the way out of this, we seem to have the stark
> > choice of behave like windows or allow kexec.  For the server market,
> > kexec wins, so either we find a way not to have to make the choice or we
> > do something automatic to make it fairly painless.
> 
> hpa suggested ensuring that UEFI regions are mapped at fixed high 
> offsets. Someone who cares about kexec should probably make that happen.

If we can detect the Macs, we can make this decision automatic. And
since no Mac boots windoze, a single DMI check of the sort "if (Mac)"
should suffice.

-- 
Regards/Gruss,
    Boris.

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