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Hi there,

is there any possibility to separate code and data with paging in Protected Mode (32 Bit)?
I cannot find any way to set the "content type" of a page.

And in nearly every documentation I read segmentation is deprecated. But how does Linux or Windows separate code and data (or don't they do that?) to get a protection fault e.g. when you try to execute from data section?


Thanks!

Bastian

Barratator wrote:protection fault e.g. when you try to execute from data section?

http://en.wikipedia.org/wiki/NX_bit

Regards,
John.

Good to know.

But this is not available for Protected Mode in 32bit.


Regards,
Bastian

Its available with PAE. Microsoft has used this method since Windows XP SP2. There is no available protection against executing code from a 'data segment' with plain 32-bit paging (without segmentation).

Regards,
John.