[libvirt] [PATCH v2 2/2] Allow PCI virtio on ARM "virt" machine

Pavel Fedin p.fedin at samsung.com
Thu Jul 2 06:34:21 UTC 2015


 Hello!

> arm64 has no generic pci host support yet (as of upstream kernel 4.1).

 There are patches: http://comments.gmane.org/gmane.linux.kernel.pci/41240. They did not pass
review, and so far no better version has been published. However, i can confirm that they work, and
i successfully implemented MSI on top of that (a small patch is needed).
 I believe distro maintainers could pick them up. PCI support gives great performance advantage, you
can use vhost-net with irqfds.

Kind regards,
Pavel Fedin
Expert Engineer
Samsung Electronics Research center Russia





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