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From: "H. Peter Anvin" <hpa@zytor.com>
To: Ian Campbell <ijc@hellion.org.uk>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>,
	linux-kernel@vger.kernel.org,
	"Eric W. Biederman" <ebiederm@xmission.com>
Subject: Re: PATCH/RFC: bzImage payload as compressed ELF file.
Date: Tue, 29 Jan 2008 13:50:28 -0800	[thread overview]
Message-ID: <479F9FA4.8020504@zytor.com> (raw)
In-Reply-To: <1201639112.9516.23.camel@cthulhu.hellion.org.uk>

Ian Campbell wrote:
> 
> I finessed the length issue slightly since it happens that the word
> before the payload is the payload's length. I'm mulling a variety of
> options:
>       * declare it compression scheme dependant. At least for gzip it
>         knows when it has reached the end.
>       * codify the length followed by data thing we happen to have now
>       * add a length field to the header, using another 4 bytes (is
>         there any pressure on the size of the header?).
> 
> I'd probably go with the later unless we are pressed for space in the
> header.

I would agree with that.  In fact, while we're adding fields to the 
header, I would like to add a field that would be the CRC32 (or other 
simple integrity check) over the whole image.

	-hpa

  reply	other threads:[~2008-01-29 21:54 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-28 22:42 Ian Campbell
2008-01-28 22:54 ` Jeremy Fitzhardinge
2008-01-29  9:34   ` Ian Campbell
2008-01-29 17:54     ` Jeremy Fitzhardinge
2008-01-29 18:05       ` H. Peter Anvin
2008-01-29 18:31         ` Jeremy Fitzhardinge
2008-01-29 18:34           ` H. Peter Anvin
2008-01-29 20:38             ` Ian Campbell
2008-01-29 21:50               ` H. Peter Anvin [this message]
2008-01-29 21:55                 ` Ian Campbell
2008-01-29 22:09                   ` H. Peter Anvin
2008-01-28 23:20 ` H. Peter Anvin
2008-01-29  9:31   ` Ian Campbell
2008-02-01 13:10 ` Ingo Molnar
2008-02-01 18:05   ` H. Peter Anvin
2008-02-01 18:15     ` H. Peter Anvin

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