It turns out that all IO-Maps are defined in .iom files in the firmware, with the VM's being defined in c_cmd.iom.
The implementation sidesteps the entire question of the kernel’s ability to write to unwritable userspace memory! It exerts the kernel’s control over the virtual memory subsystem to bypass the MMU entirely, allowing the kernel to simply write to its own writable address space. This renders the CR0.WP discussion moot.
。新收录的资料是该领域的重要参考
Англия — Премьер-лига|28-й тур，这一点在新收录的资料中也有详细论述
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