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From: mjg59@srcf.ucam.org (Matthew Garrett)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/4] Documentation: arm: [U]EFI runtime services
Date: Thu, 27 Jun 2013 15:38:01 +0100	[thread overview]
Message-ID: <20130627143801.GB12900@srcf.ucam.org> (raw)
In-Reply-To: <20130627090050.GC18151@rocoto.smurfnet.nu>

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 at srcf.ucam.org

  reply	other threads:[~2013-06-27 14:38 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-25 18:10 [PATCH 0/4] arm: [U]EFI runtime services support Leif Lindholm
2013-06-25 18:11 ` [PATCH 1/4] Documentation: arm: [U]EFI runtime services Leif Lindholm
2013-06-25 18:46   ` Christopher Covington
2013-06-25 23:42   ` Stephen Warren
2013-06-26 13:20     ` Grant Likely
2013-06-26 13:53       ` Leif Lindholm
2013-06-26 13:59         ` Matt Fleming
2013-06-26 14:38           ` James Bottomley
2013-06-27  1:32             ` Matthew Garrett
2013-06-27  6:23               ` Grant Likely
2013-06-27  6:33                 ` James Bottomley
2013-06-27 14:37                   ` Matthew Garrett
2013-06-27 15:09                     ` James Bottomley
2013-06-27 15:37                       ` Grant Likely
2013-06-27 17:28                       ` Matthew Garrett
2013-06-27 14:54                   ` Grant Likely
2013-06-27 15:04                     ` James Bottomley
2013-06-27 18:32                       ` Russell King - ARM Linux
2013-06-27  9:00               ` Leif Lindholm
2013-06-27 14:38                 ` Matthew Garrett [this message]
2013-06-27 18:32             ` H. Peter Anvin
2013-06-26 18:32       ` Stephen Warren
2013-06-26 19:31         ` Leif Lindholm
2013-06-27 18:04           ` Stephen Warren
2013-06-27 20:11             ` Grant Likely
2013-06-26 13:13   ` Grant Likely
2013-06-26 14:04     ` Leif Lindholm
2013-06-26 14:35       ` Grant Likely
2013-06-27 14:22     ` Arnd Bergmann
2013-06-30  3:21   ` Rob Landley
2013-06-25 18:11 ` [PATCH 2/4] x86: efi: break efi_lookup_mapped_addr out to generic code Leif Lindholm
2013-06-26 13:30   ` Grant Likely
2013-06-26 13:32   ` Matt Fleming
2013-06-26 14:11     ` Leif Lindholm
2013-06-26 14:40       ` Matt Fleming
2013-06-25 18:11 ` [PATCH 3/4] arm: Add [U]EFI runtime services support Leif Lindholm
2013-06-25 18:20   ` Matthew Garrett
2013-06-26 13:46     ` Grant Likely
2013-06-26 13:46   ` Grant Likely
2013-06-26 13:54     ` Matt Fleming
2013-06-26 14:15       ` Borislav Petkov
2013-06-26 14:35         ` Grant Likely
2013-06-26 14:22     ` Leif Lindholm
2013-06-25 18:11 ` [PATCH 4/4] init: efi: arm: enable (U)EFI runtime services on arm Leif Lindholm
2013-06-26 13:24   ` Grant Likely

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