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Geek Culture / priviledge levels, whats the other 2 rings (80x86)

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Posted: 21st Nov 2005 01:18
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Hello i have googled forever and finally decided to make a thread
does anyone know what the other 2 rings(ring 1 and 2) are?
what i mean is what exactly is the difference between them 2 and ring0 and 3. are certain instructions able to be run in the other 2 rings, or segment moves in the other 2

(if you dont know what i mean by rings and such then you dont have an answer)

ok, I just hit him with a shovel. Is he still conscious? Yea, I think so. Then hit him again!
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TKF15H
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Posted: 21st Nov 2005 01:58
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Well, I've seen very little information regarding rings 1 and 2, and the little I've seen was something along the lines of "you won't need 'em."

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Posted: 21st Nov 2005 02:11
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i didnt even see info on the other 2 rings in intels docs it described ring 0 and ring 3 and said ring 1 and 2 was like a priveledged user mode, you dont have to have it, it was designed for system services and thats it

ok, I just hit him with a shovel. Is he still conscious? Yea, I think so. Then hit him again!
If at first your dont succeed, then skydiving is not for you
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TKF15H
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Posted: 21st Nov 2005 02:14
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which is odd, as device drivers run in ring 0. What "System services" would require something less than 0 and more than 3?? If a driver, which is 3rd party software, is trusted enough to run on ring 0, then certainly a System Service, which is part of the OS, should be in enough control to be in ring 0 rather than 3! o_O

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Posted: 21st Nov 2005 02:31
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an old saying, "the higher the ring the lower the risk" in ring 0 you can crash the pc no matter what the os is

That is most likely why windows crashes so much, I though it ran drivers in ring 3 but that would explain how a bad driver can crash you

ok, I just hit him with a shovel. Is he still conscious? Yea, I think so. Then hit him again!
If at first your dont succeed, then skydiving is not for you
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TKF15H
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Posted: 21st Nov 2005 02:40
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Well, windows XP can handle some driver crashes nicely. Drivers can't run on ring 3 in any OS, as they require hardware-interaction only available in ring 0.

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Posted: 21st Nov 2005 04:12
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well yea, after trying to say a way to run a driver in ring3 it is impossible

ok, I just hit him with a shovel. Is he still conscious? Yea, I think so. Then hit him again!
If at first your dont succeed, then skydiving is not for you
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TKF15H
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Posted: 21st Nov 2005 19:06 Edited at: 21st Nov 2005 19:12
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_███_
£o_O3
■-██-■

Hmm... odd... before I posted, the forum was saying Sarcasm Stealth Squad had posted in this thread...

Hatter monkey totally unrelated.

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Benjamin
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Posted: 21st Nov 2005 19:59
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Quote: "Hmm... odd... before I posted, the forum was saying Sarcasm Stealth Squad had posted in this thread."

He did.

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OSX Using Happy Dude
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Posted: 21st Nov 2005 20:02
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Someone did a bit of editing

Blog:http://spaces.msn.com/members/BouncyBrick/
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Benjamin
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Posted: 21st Nov 2005 20:24
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Deleting more like. I thought you did the editing using bordland word.

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blanky
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Posted: 22nd Nov 2005 09:05 Edited at: 22nd Nov 2005 09:07
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Woah... minor war... And SSS, you delete your own post?!

@Ontopic: Surely there must be *some* difference between the rings... And what if some are heavier, or or shinier than the others.

*would go for the shiny one*

16-colour PNGs pwn.
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Posted: 22nd Nov 2005 09:13 Edited at: 22nd Nov 2005 09:14
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ok like i said,
Quote: "(if you dont know what i mean by rings and such then you dont have an answer)"


edit:
is tkfish the only person who knows about assembly, osdev, and the x86 archietecture

ok, I just hit him with a shovel. Is he still conscious? Yea, I think so. Then hit him again!
If at first your dont succeed, then skydiving is not for you
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OSX Using Happy Dude
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Posted: 22nd Nov 2005 10:07
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Quote: "Woah... minor war... And SSS, you delete your own post?!"

Nope, but I can do...

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Andy
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Posted: 22nd Nov 2005 11:30
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http://www.osronline.com/article.cfm?article=224


Andy
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Andy
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Posted: 22nd Nov 2005 11:43
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Sorry, apparently my Ctrl-C didn't take effect, so I posted an older link from my clipboard.

http://eilat.sci.brooklyn.cuny.edu/cis13_2/os.htm
http://de.wikipedia.org/wiki/Ring_(CPU)


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Posted: 22nd Nov 2005 18:59
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Quote: "Rings 1-2 (operating system) allows inter-virtual machine communication"


guess that is what it means but how would you go about using that communication is the question

ok, I just hit him with a shovel. Is he still conscious? Yea, I think so. Then hit him again!
If at first your dont succeed, then skydiving is not for you
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