From: "H. Peter Anvin" <hpa@zytor.com>
To: Matthew Garrett <mjg59@srcf.ucam.org>
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, 07 Nov 2011 13:20:45 -0800 [thread overview]
Message-ID: <4EB84BAD.6030707@zytor.com> (raw)
In-Reply-To: <20111107210702.GA28781@srcf.ucam.org>
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.
Getting a list of the stuff we need would be useful, so we can come up
with a workable ABI for passing it.
-hpa
next prev parent reply other threads:[~2011-11-07 21:21 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 [this message]
2011-11-07 21:23 ` Matthew Garrett
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4EB84BAD.6030707@zytor.com \
--to=hpa@zytor.com \
--cc=huang.ying.caritas@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=matt@console-pimps.org \
--cc=mingo@elte.hu \
--cc=mjg59@srcf.ucam.org \
--cc=rui.zhang@intel.com \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox