总结：

为什么 Genymotion 和 QEMU/KVM 不能同时使用

豆包给的答案是：

CPU 虚拟化资源独占：Genymotion 通常基于 VirtualBox 进行虚拟化，而 KVM 是直接利用 CPU 虚拟化功能的内核模块。CPU 的虚拟化功能（如 Intel 的 VT-x 或 AMD 的 AMD-V）一般只能被一个虚拟化管理程序独占使用。当 Genymotion 通过 VirtualBox 占用了这些资源后，QEMU/KVM 就无法再获取到所需的 CPU 虚拟化资源，从而无法正常工作，反之亦然。

昨天因为使用Genymotion所以执行了rmmod kvm和rmmod kvm_amd，导致今天使用QEMU/KVM的时候，虚拟系统管理器报错了

启动域时出错: unsupported configuration: Domain requires KVM, but it is not available. Check that virtualization is enabled in the host BIOS, and host configuration is setup to load the kvm modules.

Traceback (most recent call last): File “/usr/share/virt-manager/virtManager/asyncjob.py”, line 71, in cb_wrapper callback(asyncjob, *args, **kwargs)

File "/usr/share/virt-manager/virtManager/asyncjob.py", line 107, in tmpcb
callback(*args, **kwargs)
~~~~~~~~^^^^^^^^^^^^^^^^^
File "/usr/share/virt-manager/virtManager/object/libvirtobject.py", line 57, in newfn
ret = fn(self, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/object/domain.py", line 1384, in startup
self._backend.create()
~~~~~~~~~~~~~~~~~~~~^^
File "/usr/lib/python3/dist-packages/libvirt.py", line 1379, in create
raise libvirtError('virDomainCreate() failed')
libvirt.libvirtError: unsupported configuration: Domain requires KVM, but it is not available. Check that virtualization is enabled in the host BIOS, and host configuration is setup to load the kvm modules.

{% img https://res.cloudinary.com/dy5dvcuc1/image/upload/v1755848862/gowhich/2025-08-22_15-42.png "" %}

解决方案：

通过命令重新加载一下就可以了

modprobe kvm

modprobe kvm_amd