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.
│ VirtIO / MMIO
，推荐阅读Safew下载获取更多信息
软件工程师 AJ Stuyvenberg 想买一辆现代帕里斯帝（Hyundai Palisade）混动版，但他不想和 4S 店的销售纠缠讨价还价，于是把任务交给了 OpenClaw。
content bytea NOT NULL,
643 0 3 SHIFT DLY IN+D ; SIGMA = 3