Changes between Version 62 and Version 63 of VirtualMemory


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Timestamp:
Jun 9, 2019, 1:24:14 PM (5 years ago)
Author:
alain
Comment:

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  • VirtualMemory

    v62 v63  
    5959|| G            || Global       bit                             || Entry not invalidated in TLB flush when 1 (set by the OS) ||
    6060|| D            || Dirty bit                                || The page has been modified when 1 (set by the hardware) ||
    61 || PPN1 || Physical Page Number in PTE1      || PPN of a the First Level page  ||
    62 || PPN2 || Physical Page Number in PTE2      || PPN of the Second level page table  ||
     61|| PPN1 || Physical Page Number in PTE1      || (PPN1 << 9) is the PPN of the big page  ||
     62|| PPN2 || Physical Page Number in PTE2      || (PPN2) is the PPN of the Second level page table  ||
    6363
    6464The L, R, D bits are used by the operating system to implement the page replacement policy.