Re: [PATCH RFC 0/8] virtio: add guest MSI-X support

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Michael S. Tsirkin wrote:
So to map vq 0 to vector 0, vq 1 to vector 1 and vq 2 to vector 2 the driver would do:

struct virtio_interrupt_mapping mapping[3] = { {0, 0}, {1, 1}, {2, 2} };
vec = map_vqs_to_interrupt(dev, mapping, 3);
if (vec) {
  error handling
}

and then find_vq as usual.

Is it possible to just delay the msix enablement until after the queues have been finalized (IOW in virtio-pci.c:vp_finalize_features)?

Regards,

Anthony Liguori
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