On Thu, 29 Mar 2018 22:48:24 +0800, Hao Lee said:
> I'm confused about the meaning of the PAGE_SIZE macro in x86_64
> kernel. Its value is 4KB and I once thought it was the size of a
> physical page frame, but now I think I'm wrong. I find that most of
> the physical address space is mapped by PMD
Hi,
I'm confused about the meaning of the PAGE_SIZE macro in x86_64
kernel. Its value is 4KB and I once thought it was the size of a
physical page frame, but now I think I'm wrong. I find that most of
the physical address space is mapped by PMD entries, which means the
actual physical page frame