Proxmox nested Proxmox

Comune di Levico Terme

Renowned Member
Dec 18, 2008
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1
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Hy, I installed proxmox inside proxmox.

My goal is to use KVM on the guest proxmox (as a testing laboratory).

These my configuration:

srvproxmox1 is the HOST
srvproxmox-demo1 is the GUEST

srvproxmox1:/# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU X7350 @ 2.93GHz
stepping : 11
cpu MHz : 2933.437
cache size : 4096 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant
_tsc arch_perfmon pebs bts rep_good pni monitor ds_cpl vmx est tm2 ssse3 cx16 xt
pr dca lahf_lm

bogomips : 5872.66
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU X7350 @ 2.93GHz
stepping : 11
cpu MHz : 2933.437
cache size : 4096 KB
physical id : 2
siblings : 4
core id : 0
cpu cores : 4
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant
_tsc arch_perfmon pebs bts rep_good pni monitor ds_cpl vmx est tm2 ssse3 cx16 xt

pr dca lahf_lm
bogomips : 11939.14
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:

srvproxmox1:/etc/qemu-server# cat 115.conf
ostype: l26
memory: 4096
sockets: 2
name: proxmox-demo1
ide2: iso:iso/proxmox-ve_1.5-4627-3.iso,media=cdrom
boot: c
freeze: 0
cpuunits: 1000
acpi: 1
kvm: 1
scsi0: local:115/vm-115-disk-1.qcow2
vlan0: e1000=12:86:70:68:57:57,e1000=9A:A1:48:A8:54:4B
bootdisk: scsi0
scsi1: local:115/vm-115-disk-2.qcow2
scsi2: local:115/vm-115-disk-3.qcow2
scsi3: local:115/vm-115-disk-4.qcow2
args: -enable-nesting

I start the proxmox guest: qm start 115

These is the configuration of guest:

proxmox-demo1:~# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 2
model name : QEMU Virtual CPU version 0.11.1
stepping : 3
cpu MHz : 2933.436
cache size : 4096 KB
fpu : yes
fpu_exception : yes
cpuid level : 4
wp : yes
flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx lm up pni
bogomips : 5866.87
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:

When I try to create a new virtual machine KVM on proxmox-demo1 the KVM is disable.

How can I fix these ?

Sorry for my english.... thank you very much.
 
As far as I know nested virtualization works only on newest AMD processors but I never tested it as we have no such system here in our lab.