[CLOUDSTACK-10232] SystemVMs and VR to run as HVM on XenServer

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 4.10.0.0, 4.9.3.0
• Component/s: SystemVM, Virtual Router, XenServer
• Security Level: Public (Anyone can view this level - this is the default.)
• Assignee: Unassigned
• Reporter: Pierre-Luc Dion
• Created: 15/Jan/18 15:11
• Updated: 03/May/18 08:16

Description

Following the recent Meltdown-Spectre security risk,one of the mitigation,as of Jan 2018, for XenServer Hypervisor is to run Virtual-Machine in HVM mode.

Currently SystemVMs and Virtual-Routers run as PV on XenServer and the eth0 is configured using /etc/init.d/cloud-early-config using grub params from /proc/cmdline. When VM run as HVM, it is not possible to push initial boot instruction via pygrub.

Quick tests has been done using xenstore and it look like it would be possible to send same initial boot instruction has pygrub but using xenstore for HVM instances.

Issue Links

• links to: GitHub Pull Request #2465