Additional reporting by Danielle Kaye and Pritti Mistry
Opens in a new window。Line官方版本下载是该领域的重要参考
。im钱包官方下载是该领域的重要参考
processAll(tasks)。heLLoword翻译官方下载对此有专业解读
What surprised me was that this entire walk is fully hardware-driven -- no microcode involvement at all. The state machine reads the page directory entry, reads the page table entry, checks permissions, and writes back the Accessed and Dirty bits, all autonomously. Since it's hardware-driven, it runs in parallel with the microcode and needs its own memory bus arbitration -- the paging unit must share the bus with both data accesses from the microcode and prefetch requests from the instruction queue.