Pass AES to the cpu - cpu: invalid format - format error cpu.flags

openaspace

Active Member
Sep 16, 2019
483
10
38
Italy
Hi.
I need to pass the AES capabilities to a virtual machine but when I enable it with kvm64 virtualization the error is:

Parameter verification failed. (400)
cpu: invalid format - format error cpu.flags: value does not match the regex pattern

the host CPu is:

model name : Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz

the CPU have aes support:

sort -u /proc/crypto | grep module
module : aesni_intel
module : aes_x86_64
module : crc32_pclmul
module : crct10dif_pclmul
module : ghash_clmulni_intel
module : kernel

I don't find in any manual how to set this "flag"
Please help.
 
can you post your pveversion -v and the vm config with 'qm config ID'
 
Hi, thank you for the help.
Setting the cpu to "host" i can see the aes support in the virtual machine now.

All ok.

Code:
qm config 102
agent: 1
balloon: 0
boot: c
bootdisk: scsi0
cores: 8
cpu: host,flags=+spec-ctrl
cpuunits: 2048
ide2: none,media=cdrom
memory: 9600
name: ftpserver
net0: virtio=E2:2C:F7:D6:F2:10,bridge=vmbr1,firewall=1
numa: 1
onboot: 1
ostype: l26
scsi0: local:102/vm-102-disk-0.raw,size=20G
scsi1: DATA:102/vm-102-disk-0.raw,backup=0,iothread=1,replicate=0,size=4999G
scsihw: virtio-scsi-single
smbios1: uuid=f04d87f5-ec05-417c-a622-efa55a9ede35
sockets: 1
startup: order=2,up=60
vmgenid: 7eb9a924-3bd8-4660-b893-5d6b29152da6

Code:
proxmox-ve: 6.0-2 (running kernel: 5.0.21-2-pve)
pve-manager: 6.0-7 (running version: 6.0-7/28984024)
pve-kernel-5.0: 6.0-8
pve-kernel-helper: 6.0-8
pve-kernel-5.0.21-2-pve: 5.0.21-3
ceph-fuse: 12.2.11+dfsg1-2.1+b1
corosync: 3.0.2-pve2
criu: 3.11-3
glusterfs-client: 5.5-3
libjs-extjs: 6.0.1-10
libknet1: 1.12-pve1
libpve-access-control: 6.0-2
libpve-apiclient-perl: 3.0-2
libpve-common-perl: 6.0-4
libpve-guest-common-perl: 3.0-1
libpve-http-server-perl: 3.0-2
libpve-storage-perl: 6.0-8
libqb0: 1.0.5-1
lvm2: 2.03.02-pve3
lxc-pve: 3.1.0-65
lxcfs: 3.0.3-pve60
novnc-pve: 1.0.0-60
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.0-7
pve-cluster: 6.0-7
pve-container: 3.0-7
pve-docs: 6.0-4
pve-edk2-firmware: 2.20190614-1
pve-firewall: 4.0-7
pve-firmware: 3.0-2
pve-ha-manager: 3.0-2
pve-i18n: 2.0-3
pve-qemu-kvm: 4.0.0-5
pve-xtermjs: 3.13.2-1
qemu-server: 6.0-7
smartmontools: 7.0-pve2
spiceterm: 3.1-1
vncterm: 1.6-1
zfsutils-linux: 0.8.1-pve2
 

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!