From: Shark8 <OneWingedShark@gmail.com>
Subject: Re: seL4 as base of an AdaOS with some Spark proofing?
Date: Wed, 30 Jul 2014 16:53:21 -0600
Date: 2014-07-30T16:53:21-06:00 [thread overview]
Message-ID: <DHeCv.125595$pu5.24045@fx27.iad> (raw)
In-Reply-To: <HNidnc9nh6n76UTORVn_vwA@giganews.com>
On 30-Jul-14 16:40, Peter Chapin wrote:
> I'm not clear what they mean by "in-kernel hardware management" here.
> Are they talking about the hardware itself? If so, then SPARK would have
> to make that assumption as well. Similarly SPARK would have to assume
> any assembly language components are correct since they can't be
> analyzed. Of course one hopes the size of such components is minimal.
If it was the HW itself I wouldn't have thought they would add
'management' -- therefore I think it must be concluded they are talking
about things like properly using the cache or hw-paging.
> I'm going to guess the seL4 people regarded the boot loader as outside
> the scope of their project just as they might regard applications as
> outside their scope. Of course a verified boot loader would be great...
> but then so would be verified applications.
I'm the one who added 'loader' as the original text was "boot code is
correct" -- I assume it means the loader and I could grant that should
be out of the scope of an OS; /HOWEVER/, it could also be the code which
starts/initializes the OS, in which case I would have to say it
certainly falls into the the scope of verifying the OS "end-to-end".
next prev parent reply other threads:[~2014-07-30 22:53 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-30 8:22 seL4 as base of an AdaOS with some Spark proofing? kug1977
2014-07-30 9:06 ` Georg Bauhaus
2014-07-30 10:41 ` Peter Chapin
2014-07-30 11:55 ` G.B.
2014-07-30 17:47 ` Shark8
2014-07-30 22:40 ` Peter Chapin
2014-07-30 22:53 ` Shark8 [this message]
2014-07-31 0:31 ` Simon Clubley
2014-07-31 6:23 ` Georg Bauhaus
2014-07-30 17:58 ` anon
2014-07-31 22:03 ` gvdschoot
2014-08-01 7:42 ` kug1977
2014-08-01 8:27 ` gvdschoot
2014-08-01 9:04 ` gvdschoot
2014-08-01 19:32 ` Randy Brukardt
2014-08-01 19:17 ` anon
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