[Bug 1324174] Re: qemu should attempt to re-load kvm_intel to enable nesting at first install

[Serge Hallyn]

** Description changed:

-  Otherwise user may be confused as to why nesting is not enabled until a
+ Otherwise user may be confused as to why nesting is not enabled until a
  reboot.
+ 
+ SRU Justification:
+ 1. Impact: Users who install a new intel-baesd machine and immediately start
+ a VM will not be able to start nested VMs.
+ 2. Development fix: reload kvm_intel when qemu is installed, if nesting was
+ not yet enabled
+ 3. Stable fix: same as development fix
+ 4. Test case: Set up a new trusty host. install qemu-kvm.  (do not reboot)
+ create a vm, and in that vm try to start another kvm vm.
+ 5. Regression potential:  We only unload and reload the kvm_intel module if
+ nesting was not already enabled.  This should cause no regression.

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https://bugs.launchpad.net/bugs/1324174

Title:
  qemu should attempt to re-load kvm_intel to enable nesting at first
  install

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