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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-10232) SystemVMs and VR to run as HVM on XenServer
Date Tue, 27 Mar 2018 11:43:00 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-10232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16415453#comment-16415453
] 

ASF subversion and git services commented on CLOUDSTACK-10232:
--------------------------------------------------------------

Commit 535e6153cce89d213c53b89dc331f3e5ebc39211 in cloudstack's branch refs/heads/master from
[~kmoossavi]
[ https://gitbox.apache.org/repos/asf?p=cloudstack.git;h=535e615 ]

CLOUDSTACK-10232: SystemVMs and VR to run as HVM on XenServer (#2465)

Publishing boot args both to grub and xenstore-data and let
cloud-early-config decides if the VM is in PV or HVM mode
to read from correct source.

> SystemVMs and VR to run as HVM on XenServer
> -------------------------------------------
>
>                 Key: CLOUDSTACK-10232
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-10232
>             Project: CloudStack
>          Issue Type: New Feature
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: SystemVM, Virtual Router, XenServer
>    Affects Versions: 4.10.0.0, 4.9.3.0
>            Reporter: Pierre-Luc Dion
>            Priority: Major
>
> 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.



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