Code runs in a completely separate, hardware-backed environment with its own guest kernel. It is important to separate the concepts here. The hypervisor is the capability built into the Linux kernel that manages the CPU’s hardware virtualization extensions. The Virtual Machine Monitor is a user-space process that configures the VM, allocates memory, and emulates minimal hardware devices. The microVM itself is a VM that has been stripped of legacy PC cruft so it boots in milliseconds and uses minimal memory.
Splitting the pages does not need to be difficult, and the free list
，详情可参考搜狗输入法2026
Distort reality
我们不要太多，105 万，多一辆都算输。
The primary signal is desiredSize on the controller. It can be positive (wants data), zero (at capacity), negative (over capacity), or null (closed). Producers are supposed to check this value and stop enqueueing when it's not positive. But there's nothing enforcing this: controller.enqueue() always succeeds, even when desiredSize is deeply negative.