Okay, I need to classify this bug report about QEMU into either 'user-mode' or 'system-mode'. Let's break down the problem. The user is trying to create a VM using virt-manager with an ARM architecture, specifically the Cortex-A15 CPU. They're encountering an error because the file for emulating the ARM CPU isn't found. System-mode issues typically involve higher-privilege operations, peripherals, devices, or entire operating systems. Since this problem revolves around virtualizing a specific CPU architecture and installing an OS (Windows RT 8.1), it seems to fall under system-level emulation. User-mode issues are more about application-level problems or processes running in user space. Here, the issue is with QEMU's ability to emulate hardware, which is a system-level task because it involves virtualizing CPUs and possibly other low-level components required for OS installation. So, this bug report is related to how QEMU handles lower-level hardware emulation necessary for running an OS in a VM, making it a system-mode issue. system