The kernel is the shared surfaceWhen any code runs on Linux, it interacts with the hardware through the kernel via system calls. The Linux kernel exposes roughly 340 syscalls, and the kernel implementation is tens of millions of lines of C code. Every syscall is an entry point into that codebase.
The solution is trap-and-emulate, the same principle later generalized in hardware virtualization extensions. V86 mode adds a special rule: since V86 tasks always run at CPL=3, if the OS sets IOPL
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实施前款行为，妨害反恐怖主义工作进行，违反《中华人民共和国反恐怖主义法》规定的，依照其规定处罚。
7500: FRP 管理面板端口（服务器端）