Advanced Micro Devices Inc (AMD)

[dacaw]

Better still why don't you give us all a laugh and explain just how GDT, LDT fit into the paging model. Let's be precise how exactly do your selectors that you crow about actually accomplish a virtual->physical maping in a paging based system? What are these selectors you are talking about actually DOING in your picture of the VMM?

Don't tell me they are essential. Tell me why the OS designers initialize them as they do. Answer the question why they are not actually disabled (I know the answer).

Perhaps you could give us an insight into how you believe selectors and segmentation are just "related". Are, somehow, selectors part of your view of paging?? Is the concept of flat memory model even dimly in your understanding?

Come on, give us all a review of page translation tables and where the bits actually are. What bits have relevance in 64-bit mode?

Perhaps you could enlighten me where I was seemingly confused between physical & virtual memory? As I read me post I made no such reference. Now you claimed a load of crap about NX and the use of CS selectors. What, pray tell, happens to your world view when all selectors have the same base and a segment limit (32-bit) of 4GB. So any code can be executed in any space?

I think you're full of it.