Hi, Interesting technology. Some questions: - There will be 1 and only one attestation server installed per ovirt instance or per trusted pool? - Could engine cache the data it received from the attestation server, or does it have to query each time a trusted VM needs to be started? Thank you, Laszlo ----- Original Message -----
From: "Gang Wei" <gang.wei@intel.com> To: engine-devel@ovirt.org Sent: Tuesday, November 20, 2012 2:06:09 PM Subject: [Engine-devel] Trusted Compute Pools
Hi,
I am an engineer working in Intel Open Source Technology Center, interested in integrating Intel initiated OpenAttestation(OAT) project (https://github.com/OpenAttestation/OpenAttestation.git) into oVirt to provide a way for Administrator to deploy VMs on trusted hosts hardened with H/W-based security features, such as Intel TXT.
I made a draft feature page for this: http://wiki.ovirt.org/wiki/Trusted_compute_pools
My draft idea is to provide trust_level requirement while doing vm creation like below:
curl -v -u "vdcadmin@qa.lab.tlv.redhat.com" -H "Content-type: application/xml" -d '<vm><name>my_new_vm</name> <cluster id="99408929-82cf-4dc7-a532-9d998063fa95" /> <template id="00000000-0000-0000-0000-000000000000"/> <trust_level>trusted</trust_level></vm>' 'http://10.35.1.1/rhevm-api/vms'
Then oVirt Engine should query attestation server built with OAT via RESTful API to get all trusted hosts and select one to create the VM.
Attestation server performs host verification through following steps: 1. Hosts boot with Intel TXT technology enabled 2. The hosts' BIOS, hypervisor and OS are measured 3. These measured data is sent to Attestation server when challenged by attestation server 4. Attestation server verifies those measurements against good/known database to determine hosts' trustworthiness
Hosts need to be installed with OAT host agent to report host integrity to attestation server.
By far, I am still in process of getting familiar with oVirt code and not get solid idea yet on how the oVirt Engine should be modified to support this feature.
Any kind of comments or suggestions will be highly appreciated.
Thanks Gang (Jimmy) Wei
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