Alright, let's try to figure out how to classify this bug report. The user provided a list of possible categories and a specific bug report about device trees needing the 'clock-frequency' property in /cpus/cpu* nodes. First, I'll read the bug report carefully: "Device trees should specify `clock-frequency` property for `/cpus/cpu*` nodes." So it's talking about device trees, which are used in QEMU to describe hardware devices and their properties. The specific issue is that the 'clock-frequency' isn't being set correctly for CPU nodes. Looking at the categories provided: There's 'device', 'graphic', 'socket', 'network', etc., including 'hypervisor'. Now, device trees are a part of the device model in QEMU/KVM. They define hardware devices and their properties. The 'clock-frequency' property is related to how CPUs are configured in terms of timing. Since this bug is about specifying a property within the device tree for CPU nodes, it's directly related to how devices (specifically CPUs) are set up. Therefore, the category that fits best here is 'device'. device