From: "H. Peter Anvin" <hpa@zytor.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Mikael Petterson <mikpe@it.uu.se>,
Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: [GIT PULL] x86 setup: correct booting on 486 (revised)
Date: Mon, 05 Nov 2007 12:31:09 -0800 [thread overview]
Message-ID: <472F7D8D.8050505@zytor.com> (raw)
In-Reply-To: <m1pryoa1f6.fsf@ebiederm.dsl.xmission.com>
Eric W. Biederman wrote:
>>
>>> However, that being said, doing so is trivial, and it might help some
>>> debugging hack; anything that makes debugging easier is a Good Thing[TM].
>> Yeah. Even if it was just re-using the boot-time stack area temporarily,
>> just to give code the choice to use a common set of instructions.
>
> If I had to do it from scratch today I would make the 32-bit entry
> point require a stack, segments and use C calling conventions to pass
> struct boot_params *.
>
> Besides %esi I'm not really fond of requiring anything in the 32bit
> entrypoint. At the same time I totally agree that it is always nice
> to provide way more then you need.
>
Nailing down the interface as hard as possible is a good idea, to avoid
tying your hands for the future.
-hpa
next prev parent reply other threads:[~2007-11-05 20:31 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-05 2:16 [GIT PULL] x86 setup: correct booting on 486 (revised) H. Peter Anvin
2007-11-05 3:58 ` H. Peter Anvin
2007-11-05 17:15 ` Linus Torvalds
2007-11-05 17:56 ` H. Peter Anvin
2007-11-05 18:12 ` Linus Torvalds
2007-11-05 18:32 ` H. Peter Anvin
2007-11-05 18:36 ` Linus Torvalds
2007-11-05 20:21 ` Eric W. Biederman
2007-11-05 20:31 ` H. Peter Anvin [this message]
2007-11-05 20:51 ` Jeremy Fitzhardinge
2007-11-05 21:06 ` H. Peter Anvin
2007-11-06 0:59 ` Jeremy Fitzhardinge
2007-11-06 1:11 ` H. Peter Anvin
2007-11-06 1:18 ` Jeremy Fitzhardinge
2007-11-06 1:31 ` H. Peter Anvin
2007-11-06 16:17 ` Jeremy Fitzhardinge
2007-11-06 16:27 ` H. Peter Anvin
2007-11-06 16:55 ` Jeremy Fitzhardinge
2007-11-06 17:00 ` H. Peter Anvin
2007-11-06 17:09 ` Eric W. Biederman
2007-11-06 17:57 ` H. Peter Anvin
2007-11-06 18:27 ` Eric W. Biederman
2007-11-06 18:41 ` H. Peter Anvin
2007-11-06 17:04 ` Eric W. Biederman
2007-11-05 21:14 ` Eric W. Biederman
2007-11-05 21:28 ` H. Peter Anvin
2007-11-05 21:58 ` Eric W. Biederman
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