Trying to create a windows arm64 virtual machine on Radxa 5B with PXVirt 9 fails

[kovbal1981]

Creating an aarch64 machine, with
Memory: 4GB
CPU: HOST (4 cores)
BIOS: UEFI
Display: Virtio-GPU
Machine:Default
SCSI Controller: VirtIO SCSI
using windows arm64 iso as bootable installer, the virtual machine fails to start with the following error:

qm start 101

swtpm_setup: Not overwriting existing state file.
kvm: warning: driftfix 'slew' is not available with this machine
kvm: Property 'virt-10.0-machine.hpet' not found
stopping swtpm instance (pid 376330) due to QEMU startup error
start failed: QEMU exited with code 1

It seems qemu wants hpet, but aarch64 does not support hpet

Expected behavior
Ideally windows setup should start up, install and run windows arm64 edition on pxvirt 9

ENV (please complete the following information):

• OS: Armbian Linux v25.11.2 for UEFI arm64 running Armbian Linux 6.12.57-current-arm64
• ARCH: arm64
• Version [ do pveversion -v]

pveversion -v
proxmox-ve: 9.0.0 (running kernel: 6.12.57-current-arm64)
pve-manager: 9.0.10-2 (running version: 9.0.10-2/74d1bcc54a6e6730)
proxmox-kernel-helper: 9.0.4
ceph-fuse: 19.2.3-pve2
corosync: 3.1.9-pve2
criu: 4.1.1-1
ifupdown2: 3.3.0-1+pmx10
libjs-extjs: 7.0.0-5
libproxmox-acme-perl: 1.7.0
libproxmox-backup-qemu0: 2.0.1
libproxmox-rs-perl: 0.4.1
libpve-access-control: 9.0.3
libpve-apiclient-perl: 3.4.0
libpve-cluster-api-perl: 9.0.6
libpve-cluster-perl: 9.0.6
libpve-common-perl: 9.0.11
libpve-guest-common-perl: 6.0.2
libpve-http-server-perl: 6.0.4
libpve-network-perl: 1.1.8
libpve-rs-perl: 0.10.6
libpve-storage-perl: 9.0.13
libspice-server1: 0.15.2-1+b1
lvm2: 2.03.31-2
lxc-pve: 6.0.5-1
lxcfs: 6.0.4-pve1
novnc-pve: 1.6.0-3
proxmox-backup-client: 4.0.6-2
proxmox-backup-file-restore: 4.0.6-2
proxmox-backup-restore-image: not correctly installed
proxmox-kernel-helper: 9.0.4
proxmox-mail-forward: 1.0.2
proxmox-mini-journalreader: 1.6
proxmox-widget-toolkit: 5.0.5
pve-cluster: 9.0.6
pve-container: 6.0.13
pve-docs: 9.0.6
pve-edk2-firmware: 4.2025.02-3
pve-firewall: 6.0.3
pve-firmware: not correctly installed
pve-ha-manager: 5.0.3
pve-i18n: 3.6.0
pve-qemu-kvm: 10.0.2-4+port1
pve-xtermjs: 5.5.0-2
qemu-server: 9.0.22
smartmontools: 7.4-pve1
spiceterm: 3.4.1
swtpm: 0.10.1
vncterm: 1.9.1
zfsutils-linux: 2.3.4-pve1

[leelists]

For those interested by a maintened alternative : https://www.xda-developers.com/canonical-microcloud-and-raspberry-pi-turned-out-to-be-a-killer-combo