[Qemu-devel] [Bug 1806040] [NEW] Nested VMX virtualization error on last Qemu versions

[Bondey]

Public bug reported:

Recently updated Qemu on a Sony VAIO sve14ag18m with Ubuntu Bionic
4.15.0-38 from Git

After launching a few VMs, noticed that i could not create Snapshot due to this 
error:
"Nested VMX virtualization does not support live migration yet"

I've created a new Windows 7 X64 machine with this compilation of Qemu
and the problem persisted, so it's not because of the old machines.

I launch Qemu with this params (I use them for malware analisys adn re...):
qemu-system-x86_64 -monitor stdio -display none -m 4096 -smp cpus=4 -usbdevice 
tablet -drive file=VM.img,index=0,media=disk,format=qcow2,cache=unsafe -net 
nic,macaddr="...." -net bridge,br=br0 -cpu host,-hypervisor,kvm=off -vnc 
127.0.0.1:0 -enable-kvm 


Deleting the changes made on this commit solved the problem, but I dont have 
idea what is this for, so... xDD 
https://github.com/qemu/qemu/commit/d98f26073bebddcd3da0ba1b86c3a34e840c0fb8

** Affects: qemu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1806040

Title:
  Nested VMX virtualization error on last Qemu versions

Status in QEMU:
  New

Bug description:
  Recently updated Qemu on a Sony VAIO sve14ag18m with Ubuntu Bionic
  4.15.0-38 from Git

  After launching a few VMs, noticed that i could not create Snapshot due to 
this error:
  "Nested VMX virtualization does not support live migration yet"

  I've created a new Windows 7 X64 machine with this compilation of Qemu
  and the problem persisted, so it's not because of the old machines.

  I launch Qemu with this params (I use them for malware analisys adn re...):
  qemu-system-x86_64 -monitor stdio -display none -m 4096 -smp cpus=4 
-usbdevice tablet -drive 
file=VM.img,index=0,media=disk,format=qcow2,cache=unsafe -net 
nic,macaddr="...." -net bridge,br=br0 -cpu host,-hypervisor,kvm=off -vnc 
127.0.0.1:0 -enable-kvm 

  
  Deleting the changes made on this commit solved the problem, but I dont have 
idea what is this for, so... xDD 
  https://github.com/qemu/qemu/commit/d98f26073bebddcd3da0ba1b86c3a34e840c0fb8

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