[SOLVED] Change CPU Win11

kili_k2

New Member
May 8, 2023
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Hi,

I have to change the CPU on my win11 vm due to the installation of Photoshop 24.4.1. Photoshop requires SSE 4.2.
My current CPU type is kvm64.

I tried "host" which leads to the Windows bluescreen.

Does anybody know ablout this problem and how to fix it?
 
Hi,

What cpu is your machine running?

Can you post your windows config file (qm config <VM-id>)?

Also, if you create a new win11 vm for testing with "host", does it work?
 
Not sure if this is related but I also get a blue screen with host cpu when I run some Adobe software and Dragon. I think this is due to the common software manager and a piece of software called Flexnet which is used for authorisation. It runs on start-up as a service or when you launch the software. I have not been able to find a solution.
 
Machine: IBM System x3650
CPU: Quad-core 3.0GHz / 1333MHz E5450 Xeon
config file:
agent: 1
bios: ovmf
boot: order=virtio0;ide2;net0;ide0
cores: 8
cpu: kvm64
efidisk0: local-lvm:vm-200-disk-0,efitype=4m,pre-enrolled-keys=1,size=4M
ide0: local:iso/virtio-win.iso,media=cdrom,size=519590K
ide2: local:iso/Win11.iso,media=cdrom,size=5426116K
machine: pc-q35-6.2
memory: 32768
meta: creation-qemu=6.2.0,ctime=1668525891
name: hs
net0: virtio=A2:CA:B4:2F:D1:26,bridge=vmbr0,firewall=1
numa: 0
onboot: 1
ostype: win11
parent: milestone
scsihw: virtio-scsi-pci
smbios1: uuid=a5128811-e41f-4949-a95f-e4959df7e6bb
sockets: 2
tpmstate0: local-lvm:vm-200-disk-1,size=4M,version=v2.0
vga: virtio
virtio0: local-lvm:vm-200-disk-2,cache=writeback,size=500G
vmgenid: 7d753ef3-9491-4a00-9b56-3fd47b606fbc
 
For me it's not even possible to install the latest Adobe products. Therefore I tried to change the CPU to host.

Also, if you create a new win11 vm for testing with "host", does it work?
I tried it and it works just fine.

But I don't want to setup a whole new VM and migrate all the data. Is there a possibility to reconfigure the old machine?
 
Hi,

Did you enable the Hypervisor feature inside Windows 11?

You may also try changing the CPU type to a different type that is compatible with the guest operating system, such as "Haswell" or "Broadwell".
 
Last edited:
I guess you mean Hyper-V enabling?

Hyper-V and all other hypervising features are enabled in the optional features.

The error log for Broadwell:

swtpm_setup: Not overwriting existing state file.
kvm: warning: host doesn't support requested feature: CPUID.01H:ECX.fma [bit 12]
kvm: warning: host doesn't support requested feature: CPUID.01H:ECX.movbe [bit 22]
kvm: warning: host doesn't support requested feature: CPUID.01H:ECX.xsave [bit 26]
kvm: warning: host doesn't support requested feature: CPUID.01H:ECX.avx [bit 28]
kvm: warning: host doesn't support requested feature: CPUID.01H:ECX.f16c [bit 29]
kvm: warning: host doesn't support requested feature: CPUID.01H:ECX.rdrand [bit 30]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.fsgsbase [bit 0]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.bmi1 [bit 3]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.hle [bit 4]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.avx2 [bit 5]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.smep [bit 7]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.bmi2 [bit 8]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.erms [bit 9]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.invpcid [bit 10]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.rtm [bit 11]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.rdseed [bit 18]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.adx [bit 19]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.smap [bit 20]
kvm: warning: host doesn't support requested feature: CPUID.80000001H:ECX.abm [bit 5]
kvm: warning: host doesn't support requested feature: CPUID.80000001H:ECX.3dnowprefetch [bit 8]
kvm: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0]
kvm: warning: host doesn't support requested feature: CPUID.0DH:EAX [bit 0]
kvm: warning: host doesn't support requested feature: CPUID.0DH:EAX [bit 1]
kvm: warning: host doesn't support requested feature: CPUID.0DH:EAX [bit 2]
kvm: Host doesn't support requested features
stopping swtpm instance (pid 3848197) due to QEMU startup error
TASK ERROR: start failed: QEMU exited with code 1


and for Haswell:

swtpm_setup: Not overwriting existing state file.
kvm: warning: host doesn't support requested feature: CPUID.01H:ECX.fma [bit 12]
kvm: warning: host doesn't support requested feature: CPUID.01H:ECX.movbe [bit 22]
kvm: warning: host doesn't support requested feature: CPUID.01H:ECX.xsave [bit 26]
kvm: warning: host doesn't support requested feature: CPUID.01H:ECX.avx [bit 28]
kvm: warning: host doesn't support requested feature: CPUID.01H:ECX.f16c [bit 29]
kvm: warning: host doesn't support requested feature: CPUID.01H:ECX.rdrand [bit 30]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.fsgsbase [bit 0]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.bmi1 [bit 3]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.hle [bit 4]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.avx2 [bit 5]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.smep [bit 7]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.bmi2 [bit 8]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.erms [bit 9]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.invpcid [bit 10]
kvm: warning: host doesn't support requested feature: CPUID.07H:EBX.rtm [bit 11]
kvm: warning: host doesn't support requested feature: CPUID.80000001H:ECX.abm [bit 5]
kvm: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0]
kvm: warning: host doesn't support requested feature: CPUID.0DH:EAX [bit 0]
kvm: warning: host doesn't support requested feature: CPUID.0DH:EAX [bit 1]
kvm: warning: host doesn't support requested feature: CPUID.0DH:EAX [bit 2]
kvm: Host doesn't support requested features
stopping swtpm instance (pid 3847419) due to QEMU startup error
TASK ERROR: start failed: QEMU exited with code 1
 

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