From: Jeremy Fitzhardinge <jeremy@goop.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>,
"H. Peter Anvin" <hpa@linux.intel.com>,
alan-jenkins@tuffmail.co.uk, Avi Kivity <avi@redhat.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Pavel Machek <pavel@ucw.cz>,
mingo@redhat.com, linux-kernel@vger.kernel.org,
tglx@linutronix.de, rjw@sisk.pl,
linux-tip-commits@vger.kernel.org
Subject: Re: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
Date: Tue, 14 Apr 2009 02:03:55 -0700 [thread overview]
Message-ID: <49E4517B.4020301@goop.org> (raw)
In-Reply-To: <49E41447.2060400@zytor.com>
H. Peter Anvin wrote:
> Ingo Molnar wrote:
>
>> ... looks like an x86 descriptor table. Does the pattern below make
>> any sense to anyone? I've attached the relevant bits of one of the
>> reports below.
>>
>>
>
> It's weird... it's clearly not random, but the pattern is shifting all
> over the place. Almost makes me want to guess some kind of bitmask (the
> 0xaaaaaa00 bit and the stretches of 00 and ff kind of hint that way) but
> even then it doesn't really seem to make a whole lot of sense. Perhaps
> it's a data segment of some code which is barfing on memory.
>
> 960 bytes at 0xc000 (48K)... almost makes one wonder if someone confused
> address 0xc000 with segment 0xc000 (the VGA BIOS)...
>
(I wonder if its a bunch of super-secret HDMI crypto keys ;)
J
next prev parent reply other threads:[~2009-04-14 9:04 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-09 23:06 [PATCH 0/6] x86, setup: "glove box" BIOS interrupts H. Peter Anvin
2009-04-09 23:12 ` [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure H. Peter Anvin
2009-04-10 8:04 ` Pavel Machek
2009-04-10 10:39 ` Ingo Molnar
2009-04-10 10:46 ` Pavel Machek
2009-04-10 11:25 ` Ingo Molnar
2009-04-10 11:38 ` Pavel Machek
2009-04-10 11:49 ` Ingo Molnar
2009-04-11 16:13 ` Avi Kivity
2009-04-12 5:21 ` H. Peter Anvin
2009-04-12 14:01 ` Ingo Molnar
2009-04-12 14:39 ` Avi Kivity
2009-04-12 14:59 ` Linus Torvalds
2009-04-12 16:33 ` Ingo Molnar
2009-04-12 18:57 ` Avi Kivity
2009-04-13 4:16 ` Ingo Molnar
2009-04-13 4:24 ` Ingo Molnar
2009-04-13 16:27 ` H. Peter Anvin
2009-04-13 16:57 ` Pavel Machek
2009-04-13 17:00 ` H. Peter Anvin
2009-04-13 18:34 ` Alan Jenkins
2009-04-13 19:08 ` H. Peter Anvin
2009-04-14 0:06 ` Ingo Molnar
2009-04-14 4:42 ` H. Peter Anvin
2009-04-14 9:03 ` Jeremy Fitzhardinge [this message]
2009-04-14 15:59 ` H. Peter Anvin
2009-04-13 6:44 ` Avi Kivity
2009-04-12 17:51 ` H. Peter Anvin
2009-04-10 17:17 ` H. Peter Anvin
2009-04-10 17:19 ` H. Peter Anvin
2009-04-09 23:13 ` [tip:x86/setup] x86, setup: "glove box" BIOS interrupts in the core boot code H. Peter Anvin
2009-04-09 23:13 ` [tip:x86/setup] x86, setup: "glove box" BIOS interrupts in the APM code H. Peter Anvin
2009-04-09 23:13 ` [tip:x86/setup] x86, setup: "glove box" BIOS interrupts in the EDD code H. Peter Anvin
2009-04-09 23:13 ` [tip:x86/setup] x86, setup: "glove box" BIOS interrupts in the MCA code H. Peter Anvin
2009-04-09 23:13 ` [tip:x86/setup] x86, setup: "glove box" BIOS interrupts in the video code H. Peter Anvin
2009-04-10 8:05 ` Pavel Machek
2009-04-10 18:05 ` [PATCH 0/6] x86, setup: "glove box" BIOS interrupts Rafael J. Wysocki
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