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Re: [OT] Trusted hardware
From: |
Udo A. Steinberg |
Subject: |
Re: [OT] Trusted hardware |
Date: |
Mon, 10 Oct 2005 21:38:20 +0200 |
On Mon, 10 Oct 2005 15:30:50 -0400 Jonathan S. Shapiro (JSS) wrote:
JSS> I mean "mechanisms by which user mode code can enter supervisor mode."
Sure, the instruction is called SYSENTER and is well-documented ;)
JSS> No, I cannot give examples. Intel is very careful about the NDAs on this
JSS> information, and after watching the difficulties that Robert Collins had
JSS> to deal with, I have always refused to sign these NDAs. And so, of
JSS> course, if I now disclosed any of this I would be subject to prosecution
JSS> and prison for information theft.
Those days are long past. Both Intel and AMD are regularly publishing the
known errata of their chips.
http://download.intel.com/design/mobile/SPECUPDT/30220913.pdf
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/25759.pdf
There are enough errata to make kernel developers cringe, but privilege
escalation of user-mode code is not among any of them.
-Udo.
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- Amoeba's approach to capabilities, (continued)
- Amoeba's approach to capabilities, Ludovic Courtès, 2005/10/07
- Re: Amoeba's approach to capabilities, Jonathan S. Shapiro, 2005/10/07
- Re: Amoeba's approach to capabilities, Ludovic Courtès, 2005/10/07
- Re: Amoeba's approach to capabilities, Jonathan S. Shapiro, 2005/10/07
- Re: Amoeba's approach to capabilities, Ludovic Courtès, 2005/10/10
- Re: Amoeba's approach to capabilities, Jonathan S. Shapiro, 2005/10/10
- [OT] Trusted hardware, Ludovic Courtès, 2005/10/10
- Re: [OT] Trusted hardware, Jonathan S. Shapiro, 2005/10/10
- Re: [OT] Trusted hardware, Udo A. Steinberg, 2005/10/10
- Re: [OT] Trusted hardware, Jonathan S. Shapiro, 2005/10/10
- Re: [OT] Trusted hardware,
Udo A. Steinberg <=
- Re: Amoeba's approach to capabilities, Marcus Brinkmann, 2005/10/07
- Re: Amoeba's approach to capabilities, Jonathan S. Shapiro, 2005/10/07
Re: capability interface for idl4, Jonathan S. Shapiro, 2005/10/07