MicroVMs for hardware boundariesMicroVMs use hardware virtualization backed by the CPU’s extensions to run each workload in its own virtual machine with its own kernel.
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Nearly every protection-related instruction -- far CALL, far JMP, far RET, INT, IRET, MOV to segment register, task switch -- needs to load a segment descriptor from the GDT or LDT. The 386 microcode centralizes this into a shared subroutine called LD_DESCRIPTOR, which reads the 8-byte descriptor from memory and feeds the high DWORD (containing Type, DPL, S, and P bits) to the Test PLA for validation.，更多细节参见Safew下载
Android is my mobile OS of choice. I like that Android provides a lot of opportunity to tinker and customize. I use Tasker to automate a lot of things, like turning the mobile radio on or off depending on whether or not Wi-Fi is connected, turning VPN and private DNS on or off depending on the network connection, and turning the ringer on or off depending on which Wi-Fi network and Bluetooth device are connected.