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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17279
Location: In your JS exploiting you and your system
revolution
Folks: There is one happy coder feeling the dizzy intoxication of success.
Post 19 Aug 2008, 17:01
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lazer1



Joined: 24 Jan 2006
Posts: 185
lazer1
with multiprocessors the keyboard controller will be connected to just
1 CPU. enabling bit 20 is via the keyboard controller.

presumably that means you only enable bit 20 with the BSP?

is A20 shared by all the CPUs?


perhaps with multiprocessors they enable bit 20 by default

one other curious thing is that with the original problem cr3
seems to have been accessing the correct memory without
A20 enabled.
Post 19 Aug 2008, 19:14
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f0dder



Joined: 19 Feb 2004
Posts: 3170
Location: Denmark
f0dder
Glad my hunch turned out to be correct Smile
Post 21 Aug 2008, 00:56
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