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Date: Thu, 27 Jun 2013 15:38:01 +0100
From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Leif Lindholm <leif.lindholm@linaro.org>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
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Subject: Re: [PATCH 1/4] Documentation: arm: [U]EFI runtime services
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On Thu, Jun 27, 2013 at 11:00:50AM +0200, Leif Lindholm wrote:
> On Thu, Jun 27, 2013 at 02:32:19AM +0100, Matthew Garrett wrote:
> > We can probably get away with that now, but it does risk us ending up 
> > with some firmware that expects to run in physical mode (boards designed 
> > for Linux) and some firmware that expects to run in virtual mode (boards 
> > designed for Windows). The degree of lockdown in the Windows ecosystem 
> > at present means it's not a real problem at the moment, but if that ever 
> > changes we're going to risk incompatibility.
> 
> Is there anything preventing calling SetVirtualAddressMap() with a
> 1:1 map?

No, but we've seen bugs as a result on some x86 systems. As far as the 
spec, though, you're fine.

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