Lines Matching refs:memory

7 Paged virtual memory was invented along with virtual memory as a concept in
9 virtual memory. The feature migrated to newer computers and became a de facto
14 as seen on the external memory bus.
22 is the physical address of the page (as seen on the external memory bus)
25 Physical memory address 0 will be *pfn 0* and the highest pfn will be
26 the last page of physical memory the external address bus of the CPU can
38 Over time a deeper hierarchy has been developed in response to increasing memory
41 the fact that Torvald's first computer had 4MB of physical memory. Entries in
45 become hierarchical and that in turn is done to save page table memory and
49 of entries, breaking down the whole memory into single pages. Such a page table
50 would be very sparse, because large portions of the virtual memory usually
52 address space does not waste valuable page table memory, because it will suffice
56 to a physical memory range, which allows mapping a contiguous range of several
58 shortcuts in mapping virtual memory to physical memory: there is no need to
89   mapping a single page of virtual memory to a single page of physical memory.
94   architecture-specific bits such as memory protection.
117   main page table handling the PGD for the kernel memory is still found in
119   memory context and thus its own *pgd*, found in `struct mm_struct` which
120   in turn is referenced to in each `struct task_struct`. So tasks have memory
152 virtual memory manager, will need to be written so that it traverses all of the