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Re: [Xen-users] VMware ESXi 5.5 under Xen4CentOS ( nested hvm )

George ,


I have installed KVM on the same Box with nested hvm I have installed L1 KVM Hyp and inside I ran the same OS I am trying to run inside ESXi , with one note : with KVM installed on CentOS 7 while xen4centos is installed on CentOS 6 does this affect the issue in hand ?


Cat /proc/cpuinfo for the L1 Guest confirm the flag svm is there . and also : running virt-host-validate on the L1 Guest confirm HW VT is present and all tests are passed .


Abdallah Jabbour

IT Manager


for the real world

Sheikhdaher, Flaifel Brothers Avenue,Bldge No.602 P.O. Box 1133

T:+963 41 466 122/Ext 225  W: www.msc.com

As agent for MSC Mediterranean Shipping Company S.A., Geneva



From: dunlapg@xxxxxxxxx [mailto:dunlapg@xxxxxxxxx] On Behalf Of George Dunlap
Sent: 23
آذار, 2016 02:07 م
To: Abdallah Jabbour <it-j@xxxxxxxxx>
Cc: xen-users@xxxxxxxxxxxxx; Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>; Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>
Subject: Re: [Xen-users] VMware ESXi 5.5 under Xen4CentOS ( nested hvm )


On Wed, Mar 23, 2016 at 11:33 AM, Abdallah Jabbour <it-j@xxxxxxxxx> wrote:

Hi ,


I have created a VM under Xen4CentOS with VMware ESXi5.5 and enabled HVM ( nestedhvm=1 in configuration file for the domain ) ESXi installer did not complain about HVM being missing and the installation is completed successfully , yet when creating a VM inside ESXi and power it , it crashes and ESXi crash too , my physical CPU is AMD Athlon II x4 620 , I have turned HAP bit in the configuration file of the domain (ESXi) yet the VM still crash and also ESXi Hyp still crash with purple screen of death .



Unfortunately AMD hasn't been actively maintaining nested virtualization on their platform.  Our automated testing system runs a nested virtualization test on both AMD and Intel on a regular basis, and the AMD test is marked as "never passed".

If you can get your hands on an Intel box, you should have better luck.


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