Archlinux下使用kvm

intel支持虚拟化

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$ LC_ALL=C lscpu | grep Virtualization
Virtualization:                  VT-x

内核支持虚拟化技术

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$ zgrep CONFIG_KVM /proc/config.gz
CONFIG_KVM_GUEST=y
CONFIG_KVM_MMIO=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_KVM_VFIO=y
CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
CONFIG_KVM_COMPAT=y
CONFIG_KVM_XFER_TO_GUEST_WORK=y
CONFIG_KVM=m
CONFIG_KVM_INTEL=m
CONFIG_KVM_AMD=m
CONFIG_KVM_AMD_SEV=y
CONFIG_KVM_XEN=y
CONFIG_KVM_MMU_AUDIT=y

内核模块已导入

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$ lsmod | grep kvm              
kvm_intel             352256  0
kvm                  1073152  1 kvm_intel
irqbypass              16384  1 kvm

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$ lsmod | grep virtio                                    23:47:29
virtio_balloon         28672  0
virtio_scsi            28672  0
virtio_blk             20480  0
virtio_net             65536  0
net_failover           24576  1 virtio_net

如果virtio不显示则手动导入 in /etc/modules-load.d/virtio-net.conf

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virtio-net
virtio-blk
virtio-scsi
virtio-serial
virtio-balloon

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# qemu | network | uefi support
sudo pacman -S qemu ebtables dnsmasq bridge-utils openbsd-netcat edk2-ovmf
# manager with gui
sudo pacman -S libvirt virt-manager virt-viewer

调整权限，将自己加入libvirt组
sudo vim /etc/polkit-1/rules.d/50-libvirt.rules

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# add this in file
/* Allow users in kvm group to manage the libvirt
daemon without authentication */
polkit.addRule(function(action, subject) {
  if (action.id == "org.libvirt.unix.manage" &&
    subject.isInGroup("kvm")) {
      return polkit.Result.YES;
  }
});

当前用户加入kvm组
sudo usermod -a -G kvm $(whoami) 启动服务

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sudo systemctl enable libvirtd.service
sudo systemctl start libvirtd.service
sudo systemctl start virtlogd.service