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23840
2011 Nov 29
4
[RFC] virtio: use mandatory barriers for remote processor vdevs
Virtio is using memory barriers to control the ordering of
references to the vrings on SMP systems. When the guest is compiled
with SMP support, virtio is only using SMP barriers in order to
avoid incurring the overhead involved with mandatory barriers.
Lately, though, virtio is being increasingly used with inter-processor
communication scenarios too, which involve running two (separate)
2011 Nov 29
4
[RFC] virtio: use mandatory barriers for remote processor vdevs
Virtio is using memory barriers to control the ordering of
references to the vrings on SMP systems. When the guest is compiled
with SMP support, virtio is only using SMP barriers in order to
avoid incurring the overhead involved with mandatory barriers.
Lately, though, virtio is being increasingly used with inter-processor
communication scenarios too, which involve running two (separate)