** Changed in: linux (Ubuntu Cosmic)
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/1798427

Title:
  kvm doesn't work on 36 physical bits systems

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Cosmic:
  Fix Committed

Bug description:
  [Impact]
  A guest will hang while booting under 4.18.0-10.11 because of "kvm: x86: Set 
highest physical address bits in non-present/reserved SPTEs", which came in via 
4.18.y.

  [Test Case]
  A guest was booted after applying the patch.

  [Regression Potential]
  It might break KVM on systems with different physical memory limits, which is 
just what upstream might have been testing the most.

  ============

  A fix is already upstream, and already present in 4.18.14.

  This would be upstream commit
  daa07cbc9ae3da2d61b7ce900c0b9107d134f2c1 ("KVM: x86: fix L1TF's MMIO GFN 
calculation").

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