PAGE_OFFSET > 2^48

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Article #72737

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#72737

From: porparek
Date: Sat, 18 Jul 2015 09:43

7 lines
1562 bytes

Hi
I can see that on x86_64 architechture the PAGE_OFFSET is:
0xffff880000000000
while many today's x86_64 CPUs have got 2^48 virtual address space which is smaller than PAGE_OFFSET.
How is that. I thought that PAGE_OFFSET must have always been smaller than available virtual address space.

thanks for answer

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