[SOLVED] we cannot choice the cpu ''INTEL''

[esra]

Hi everyone,
our devices features at attchment.
we installed VM and we could not choose the processors type like Intel xeon .we choose KVM.
we see KVM processors on virtual machine.
We would like to change the processors type and see intel xeon in processors type on virtual machine.
Could you please help about this?

 

[spirit]

160cores, good server

you can simply choose the cpu model in vm cpu options. (default is kvm64 model).
I think the model is skylake for your cpu.

 

[esra]

thanks for reply..yes we have more cores
we could not start the virtual machines when we did choose SKYLAKE-SERVER..
we choosed kvm64 or qemu64 but we did not see in the proce

 

[esra]

thanks for reply..yes we have more cores
we could not start the virtual machines when we did choose SKYLAKE-SERVER..
we choosed kvm64 or qemu64 but we did not see in the processors of virtual machine.
we saw at attachment

 

[spirit]

do you have tried cascade lake ?

seem than 6230 is second generation scalable intel processor
https://ark.intel.com/content/www/f...gold-6230-processor-27-5m-cache-2-10-ghz.html

Also, if you choose kvm64, it's normal too see "qemu virtual cpu ..."

Can you send the log of the start task of the vm ? you should have info why it's not starting (which cpu instructions are not supported)

 

[esra]

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.rtm [bit 11]
kvm: Host doesn't support requested features
TASK ERROR: start failed: command '/usr/bin/kvm -id 100 -name W10Pro -chardev 'socket,id=qmp,path=/var/run/qemu-server/100.qmp,server,nowait' -mon 'chardev=qmp,mode=control' -chardev 'socket,id=qmp-event,path=/var/run/qmeventd.sock,reconnect=5' -mon 'chardev=qmp-event,mode=control' -pidfile /var/run/qemu-server/100.pid -daemonize -smbios 'type=1,uuid=7b9b15cf-d4b6-4e5e-bddf-cdeba0d3640e' -smp '8,sockets=1,cores=8,maxcpus=8' -nodefaults -boot 'menu=on,strict=on,reboot-timeout=1000,splash=/usr/share/qemu-server/bootsplash.jpg' -vnc unix:/var/run/qemu-server/100.vnc,password -no-hpet -cpu 'Skylake-Server,+kvm_pv_unhalt,+kvm_pv_eoi,hv_spinlocks=0x1fff,hv_vapic,hv_time,hv_reset,hv_vpindex,hv_runtime,hv_relaxed,hv_synic,hv_stimer,hv_ipi,enforce,vendor=GenuineIntel' -m 8192 -device 'pci-bridge,id=pci.1,chassis_nr=1,bus=pci.0,addr=0x1e' -device 'pci-bridge,id=pci.2,chassis_nr=2,bus=pci.0,addr=0x1f' -device 'vmgenid,guid=c21ae748-9752-44cf-92f2-b51b4a9efcae' -device 'piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2' -device 'usb-tablet,id=tablet,bus=uhci.0,port=1' -chardev 'socket,id=serial0,path=/var/run/qemu-server/100.serial0,server,nowait' -device 'isa-serial,chardev=serial0' -device 'VGA,id=vga,bus=pci.0,addr=0x2' -chardev 'socket,path=/var/run/qemu-server/100.qga,server,nowait,id=qga0' -device 'virtio-serial,id=qga0,bus=pci.0,addr=0x8' -device 'virtserialport,chardev=qga0,name=org.qemu.guest_agent.0' -device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3' -iscsi 'initiator-name=iqn.1993-08.org.debian:01:71b368883f7' -drive 'file=/var/lib/vz/template/iso/virtio-win-0.1.173.iso,if=none,id=drive-ide0,media=cdrom,aio=threads' -device 'ide-cd,bus=ide.0,unit=0,drive=drive-ide0,id=ide0,bootindex=200' -drive 'file=/var/lib/vz/template/iso/SW_DVD9_Win_Pro_10_1903_64BIT_Turkish_Pro_Ent_EDU_N_MLF_X22-00007.ISO,if=none,id=drive-ide2,media=cdrom,aio=threads' -device 'ide-cd,bus=ide.1,unit=0,drive=drive-ide2,id=ide2,bootindex=201' -device 'virtio-scsi-pci,id=scsihw0,bus=pci.0,addr=0x5' -drive 'file=/dev/zvol/INTEL-RAID/vm-100-disk-0,if=none,id=drive-scsi0,cache=writeback,discard=on,format=raw,aio=threads,detect-zeroes=unmap' -device 'scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0,id=scsi0,rotation_rate=1,bootindex=100' -netdev 'type=tap,id=net0,ifname=tap100i0,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' -device 'virtio-net-pci,mac=9E:B6:AF:E0:65:06,netdev=net0,bus=pci.0,addr=0x12,id=net0,bootindex=300' -rtc 'driftfix=slew,base=localtime' -machine 'type=pc+pve1' -global 'kvm-pit.lost_tick_policy=discard'' failed: exit code 1

 

[spirit]

seem related to this bug

https://lore.kernel.org/qemu-devel/20191120164912.32384-3-ehabkost@redhat.com/T/

new revision of intel cpu have removed TSX recently
so, flag " hle=off,rtm=off " should be added until a new cpumodel is provided by new qemu version

as workaround, you could manually add them with

qm set <vmid> --args "-cpu 'Skylake-Server,hle=off,rtm=off, +kvm_pv_unhalt,+kvm_pv_eoi,hv_spinlocks=0x1fff,hv_vapic,hv_time,hv_reset,hv_vpindex,hv_runtime,hv_relaxed,hv_synic,hv_stimer,hv_ipi,enforce,vendor=GenuineIntel'"

 

[esra]

okay.i will try your solution.i will let you know.
Thanks a lot..

 

[esra]

hi,
we applied the command.we could not open the virtual machine.we got the error below

kvm: can't apply global Skylake-Server-x86_64-cpu. +kvm-pv-unhalt=on: Property '. +kvm-pv-unhalt' not found

TASK ERROR: start failed: command '/usr/bin/kvm -id 101 -name 10 -chardev 'socket,id=qmp,path=/var/run/qemu-server/101.qmp,server,nowait' -mon 'chardev=qmp,mode=control' -chardev 'socket,id=qmp-event,path=/var/run/qmeventd.sock,reconnect=5' -mon 'chardev=qmp-event,mode=control' -pidfile /var/run/qemu-server/101.pid -daemonize -smbios 'type=1,uuid=266c271c-476c-4e48-b607-ea6558b19248' -smp '4,sockets=1,cores=4,maxcpus=4' -nodefaults -boot 'menu=on,strict=on,reboot-timeout=1000,splash=/usr/share/qemu-server/bootsplash.jpg' -vnc unix:/var/run/qemu-server/101.vnc,password -no-hpet -cpu 'kvm64,+lahf_lm,+sep,+kvm_pv_unhalt,+kvm_pv_eoi,hv_spinlocks=0x1fff,hv_vapic,hv_time,hv_reset,hv_vpindex,hv_runtime,hv_relaxed,hv_synic,hv_stimer,hv_ipi,enforce' -m 8192 -device 'pci-bridge,id=pci.1,chassis_nr=1,bus=pci.0,addr=0x1e' -device 'pci-bridge,id=pci.2,chassis_nr=2,bus=pci.0,addr=0x1f' -device 'vmgenid,guid=fe88618b-5ad6-41a7-aabc-d86e0e97170c' -device 'piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2' -device 'usb-tablet,id=tablet,bus=uhci.0,port=1' -device 'VGA,id=vga,bus=pci.0,addr=0x2' -chardev 'socket,path=/var/run/qemu-server/101.qga,server,nowait,id=qga0' -device 'virtio-serial,id=qga0,bus=pci.0,addr=0x8' -device 'virtserialport,chardev=qga0,name=org.qemu.guest_agent.0' -device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3' -iscsi 'initiator-name=iqn.1993-08.org.debian:01:71b368883f7' -drive 'if=none,id=drive-ide0,media=cdrom,aio=threads' -device 'ide-cd,bus=ide.0,unit=0,drive=drive-ide0,id=ide0,bootindex=200' -drive 'if=none,id=drive-ide2,media=cdrom,aio=threads' -device 'ide-cd,bus=ide.1,unit=0,drive=drive-ide2,id=ide2,bootindex=201' -device 'virtio-scsi-pci,id=scsihw0,bus=pci.0,addr=0x5' -drive 'file=/dev/zvol/INTEL-RAID/vm-101-disk-0,if=none,id=drive-scsi0,cache=writeback,discard=on,format=raw,aio=threads,detect-zeroes=unmap' -device 'scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0,id=scsi0,rotation_rate=1,bootindex=100' -netdev 'type=tap,id=net0,ifname=tap101i0,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' -device 'virtio-net-pci,mac=5A:98:12:30:C9:5D,netdev=net0,bus=pci.0,addr=0x12,id=net0,bootindex=300' -rtc 'driftfix=slew,base=localtime' -machine 'type=pc+pve1' -global 'kvm-pit.lost_tick_policy=discard' -cpu 'Skylake-Server,hle=off,rtm=off, +kvm_pv_unhalt,+kvm_pv_eoi,hv_spinlocks=0x1fff,hv_vapic,hv_time,hv_reset,hv_vpindex,hv_runtime,hv_relaxed,hv_synic,hv_stimer,hv_ipi,enforce,vendor=GenuineIntel'' failed: exit code 1

 

[apoc]

Why don't you just switch to the "HOST" option (very end of the line).
This will just expose the CPU as it is from the host to the guest.

 

[apoc]

In the very same place where you change the CPU type of the VM and where you have applied the various CPU types before.
Scroll to the very end of the list. It will say "host".
I only recently noticed that myself

 

[esra]

yesss it is okay..we solved the problem. we chose ''HOST'' and we saw the intelcpu..
thanks a lot for your support...

 

[apoc]

My pleasure.
Would you please edit your first post and set this topic to "solved" by chosing that prefix from the dropdown list? Thanks!

 

[spirit]

qemu 4.2 will be available soon in proxmox, so you'll have the correct cpumodel available soon

 

[esra]

thanks for information