Support for APIC Virtualization in Xen

Bug #1160373 reported by Stefan Bader
This bug affects 3 people
Affects Status Importance Assigned to Milestone
xen (Ubuntu)
Stefan Bader

Bug Description

Add support to the Xen hypervisor for the new APIC Virtualization features avaiable in newer Intel CPUs.

Expected Upstream Schedule: Xen 4.3

Implemented by three patches in upstream Xen git repository:
f62b02e xen: enable APIC-Register Virtualization
25b81a7 xen: enable Virtual-interrupt delivery
c892426 xen: add virtual x2apic support for apicv

Revision history for this message
Stefan Bader (smb) wrote :

Tested on hardware with and without support for this feature.

description: updated
Revision history for this message
Dave Walker (davewalker) wrote :

FFe: Requested on IRC and approved (based on the testing already done), but please be prepared to revert at hint of regression. Thanks

Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package xen - 4.2.1-0ubuntu3

xen (4.2.1-0ubuntu3) raring; urgency=low

  * Fix FTBS on i386
    - 0007-x86-Fix-i386-virtual-apic.patch
  * Fix HVM VCPUs getting stuck on boot when host supports SMEP (LP: #1157757)
    - 0008-vmx-Simplify-cr0-update-handling-by-deferring-cr4-ch.patch
    - 0009-VMX-disable-SMEP-feature-when-guest-is-in-non-paging.patch
    - 0010-VMX-Always-disable-SMEP-when-guest-is-in-non-paging-.patch
 -- Stefan Bader <email address hidden> Fri, 05 Apr 2013 16:39:45 +0200

Changed in xen (Ubuntu):
status: In Progress → Fix Released
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