a. For small pages, how many different level 2 page tables are possible? Do not

Question

a. For small pages, how many different level 2 page tables are possible? Do not provide the actual numeric answer, provide the formula.

b. In an L2 table, how many small pages can be referenced? Again, provide the formula, please.

c. How much addressable memory does this imply an ARM system can support? Pay particular attention to the fact that despite the book referencing the page size in international standard units (kB), it’s actually a binary prefix (https://en.m.wikipedia.org/wiki/Binary_prefix) quantity of memory per page (KiB). To avoid any ambiguity, provide the numeric answer and also the formula.

Explanation / Answer

1.Number of enties in page table=(virtual address space size)/(page size)

Size of page table=(total number of page table entires)*(size of a page table entry)

3.I think ARM8(64 bit ARM) also supports 48 bits virtual and physical

you also cannot easily memory map files larger than 4GB on a 32 bit system

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