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Storage Settings (https://www.qemu.org/docs/master/system/qemu-block-drivers.html) Secure VM Computation Desktop
preallocation metadata off metadata
encryption on off off
disk_cache writethrough unsafe none
lazy_refcounts on on off
format qcow2 raw qcow2
disk bus virtio virtio virtio
capacity 8G 8G 8G
cluster_size 1024k NA 1024k

Host Settings Secure VM Computation Desktop
Transparent HugePages (https://documentation.suse.com/sles/15-SP2/html/SLES-all/cha-tuning-memory.html#sec-tuning-memory-thp) on on on
KSM (https://www.kernel.org/doc/html/latest/admin-guide/mm/ksm.html) disable enable enable
KSM merge across (https://www.kernel.org/doc/Documentation/vm/ksm.txt) disable enable enable
swappiness (https://www.kernel.org/doc/Documentation/vm/swappiness.txt) 0 0 35
IO Scheduler (https://documentation.suse.com/sles/15-SP4/html/SLES-all/cha-tuning-storage.html#sec-tuning-storage-scheduler) bfq mq-deadline mq-deadline

Guest Settings Secure VM Computation Desktop
CPU migratable (https://libvirt.org/kbase/launch_security_sev.html) off off on
machine pc-q35-6.2 pc-q35-6.2 pc-q35-6.2
watchdog (https://libvirt.org/formatdomain.html#watchdog-devices) none i6300esb poweroff none
boot UEFI (https://libvirt.org/formatdomain.html#bios-bootloader) auto auto auto
vTPM (https://libvirt.org/formatdomain.html#tpm-device) tpm-crb 2.0 none none
iothreads (https://libvirt.org/formatdomain.html#iothreads-allocation) disable 4 4
video (https://libvirt.org/formatdomain.html#video-devices) qxl qxl virtio
network (https://libvirt.org/formatdomain.html#network-interfaces) e1000 virtio e1000
keyboard (https://libvirt.org/formatdomain.html#input-devices) ps2 (will be disable in the futur) virtio virtio
memory backing (https://libvirt.org/formatdomain.html#memory-backing) off memfd/shared memfd/shared
mouse disable virtio virtio
on_poweroff (https://libvirt.org/formatdomain.html#events-configuration) destroy restart destroy
on_reboot destroy restart restart
on_crash destroy restart destroy
suspend_to_mem (https://libvirt.org/formatdomain.html#power-management) off off on
suspend_to_disk off off on
features (https://libvirt.org/formatdomain.html#hypervisor-features) acpi apic pae acpi apic pae acpi apic pae
host fs (https://libvirt.org/formatdomain.html#filesystems) fmode, dmode, source_dir, target_dir NA NA 644 755 /tmp/ /tmp/host

SEV Secure VM Computation Desktop
kvm SEV (https://libvirt.org/kbase/launch_security_sev.html) mem_encrypt=on kvm_amd sev=1 sev_es=1 NA NA
sec cbitpos auto NA NA
sec reducedPhysBits auto NA NA
sec policy auto NA NA