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https://issues.apache.org/jira/browse/CLOUDSTACK-10232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16372065#comment-16372065
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ASF GitHub Bot commented on CLOUDSTACK-10232:
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khos2ow opened a new pull request #2465: CLOUDSTACK-10232: SystemVMs and VR to
run as HVM on XenServer
URL: https://github.com/apache/cloudstack/pull/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.
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> 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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