On Tue, 10 Jun 2014 19:26:08 +0000 "Carew, Alan" <alan.carew at intel.com> wrote:
> One alternative for us is then to take Neil Horman's idea of scanning > /sys/bus/pci/devices/<D:B:D.F>/msi_irqs/ > This gives us at least (MSI | MSI-X) | INT-X, however the Virtio > specification mentions MSI-X explicitly for determining the correct offset > and might not address the underlying problem my patch set was addressing, I > have not tried Virtio with MSI. MSI doesn't work with virtio. pci_enable_msi() returns error. The device does not report MSI capability.