Support for multiple PHBs in pseries virtual machines

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== Comment: #0 - Leonardo Augusto Guimaraes Garcia <email address hidden> - 2017-07-27 13:24:28 ==
Power servers can have multiple PCI Host Bridges (PHBs), different from x86, where it is rare to have multiple PHBs.

Multiple PHBs are important on Power virtual machines because it allows EEH to work correctly for multiple devices. If a virtual machine has only one vPHB and an EEH occurs to an adapter passed through to the virtual machine and attached to that vPHB, all other adapters connected to the same vPHB will be reset because of the EEH recovery routine.

With multiple vPHBs we can attach one device per PHB and EEH will work independently without problems for each adapter.

This feature has already been integrated upstream and will be available with libvirt 3.6.0.

QEMU already allows multiple PHBs. This feature is to add this support into libvirt.

[Christian Ehrhardt  (paelzer)]

Thanks for splitting into another bug.
I was already working on 3.6 as mentioned so I can't close it in the upload itself as it is already in the queue.
But 3.6 [1] was just now passing the final tests and accepted.

So in a few minutes it is properly in artful and the bug thereby fix released.

[1]: https://launchpad.net/ubuntu/+source/libvirt/3.6.0-1ubuntu1

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------- Comment From <email address hidden> 2017-09-14 10:25 EDT-------
libvirt 3.6 is already part of Ubuntu 17.10 so there is nothing to do on this bug.