[CentOS-virt] Xen 4.6.6-9 (with XPTI meltdown mitigation) packages making their way to centos-virt-xen-testing

George Dunlap dunlapg at umich.edu
Wed Jan 17 17:14:23 UTC 2018


I've built & tagged packages for CentOS 6 and 7 4.6.6-9, with XPTI
"stage 1" Meltdown mitigation.

This will allow 64-bit PV guests to run safely (with a few caveats),
but incurs a fairly significant slowdown for 64-bit PV guests on Intel
boxes (including domain 0).

If you prefer using Vixen / Comet, you can turn it off by adding
'xpti=0' to your Xen command-line.

Detailed information can be found in the XSA-254 advisory:

https://xenbits.xen.org/xsa/advisory-254.html

Please test and report any issues you have.  I'll probably tag then
with -release tomorrow.

4.8 packages should be coming to buildlogs soon.

 -George


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