From: Matthew Garrett <mjg59@srcf.ucam.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Matt Fleming <matt@console-pimps.org>,
Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
Zhang Rui <rui.zhang@intel.com>,
Huang Ying <huang.ying.caritas@gmail.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3] x86, efi: Calling __pa() with an ioremap'd address is invalid
Date: Mon, 7 Nov 2011 21:23:28 +0000 [thread overview]
Message-ID: <20111107212328.GA29090@srcf.ucam.org> (raw)
In-Reply-To: <4EB84BAD.6030707@zytor.com>
On Mon, Nov 07, 2011 at 01:20:45PM -0800, H. Peter Anvin wrote:
> On 11/07/2011 01:07 PM, Matthew Garrett wrote:
> >>
> >> I know we need to be able to pass the initramfs in memory; anything else
> >> we need other than the normal EFI executable entry conditions?
> >
> > If we're called before ExitBootServices(), no. If we're called after,
> > we'll need the map from GetMemoryMap(). There's some other things that
> > we may want to pass, such as option ROMs that we can get from firmware
> > but which may not otherwise be mapped - I guess those could arguably be
> > passed in the initramfs.
> >
>
> No, we should be called before ExitBootServices(), obviously.
<
> That was a significant part of the point.
I know. But we also have to handle being called after
ExitBootServices(). There are going to be people who don't want to deal
with signing their kernel builds.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2011-11-07 21:24 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1320680088-2584-1-git-send-email-matt@console-pimps.org>
2011-11-07 20:23 ` [PATCH v3] x86, efi: Calling __pa() with an ioremap'd address is invalid Matthew Garrett
2011-11-07 20:36 ` H. Peter Anvin
2011-11-07 20:37 ` Matthew Garrett
2011-11-07 20:45 ` H. Peter Anvin
2011-11-07 20:48 ` Matthew Garrett
2011-11-07 20:57 ` H. Peter Anvin
2011-11-07 20:58 ` Matthew Garrett
2011-11-07 21:01 ` H. Peter Anvin
2011-11-07 21:07 ` Matthew Garrett
2011-11-07 21:20 ` H. Peter Anvin
2011-11-07 21:23 ` Matthew Garrett [this message]
2011-11-07 21:34 ` H. Peter Anvin
2011-11-07 21:36 ` Matthew Garrett
2011-11-07 22:43 ` Alan Cox
2011-11-11 1:02 ` huang ying
2011-11-11 13:12 ` Matt Fleming
2011-11-11 13:49 ` Matt Fleming
2011-11-07 15:46 Matt Fleming
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