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#!/bin/bash
is_qemu_virtualized() {
# 0 if a QEMU/KVM like VM virtualization environment was detected
# 1 if a QEMU/KVM like VM virtualization environment could not be detected (including if an error was encountered)
# do not consult /sys and do not detect virt environment in non-hostonly mode
! [[ ${hostonly-} ]] && return 1
if type -P systemd-detect-virt > /dev/null 2>&1; then
if ! vm=$(systemd-detect-virt --vm 2> /dev/null); then
return 1
fi
[[ $vm == "qemu" ]] && return 0
[[ $vm == "kvm" ]] && return 0
[[ $vm == "bochs" ]] && return 0
fi
for i in /sys/class/dmi/id/*_vendor; do
[[ -f $i ]] || continue
read -r vendor < "$i"
[[ $vendor == "QEMU" ]] && return 0
[[ $vendor == "Red Hat" ]] && return 0
[[ $vendor == "Bochs" ]] && return 0
done
return 1
}
# called by dracut
check() {
is_qemu_virtualized && return 0
if [[ $hostonly ]] || [[ $mount_needs ]]; then
return 255
fi
return 0
}
# called by dracut
installkernel() {
# qemu specific modules
hostonly='' instmods \
ata_piix ata_generic pata_acpi cdrom sr_mod sd_mod ahci \
virtio_blk virtio virtio_crypto virtio_ring virtio_pci \
virtio_scsi virtio_console virtio_rng virtio_mem \
spapr-vscsi \
qemu_fw_cfg \
efi_secret
}
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