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(parent: 684e508) | patch
virtio: disable virtqueue notifications during polling
authorStefan Hajnoczi <stefanha@redhat.com>
Thu, 1 Dec 2016 19:26:50 +0000 (19:26 +0000)
committerStefan Hajnoczi <stefanha@redhat.com>
Tue, 3 Jan 2017 16:38:50 +0000 (16:38 +0000)
commita7c8215e3bbcdd3b5dbaabfcecf236d4a9880558
tree055e226ce13776bee8762a93f36a31bb081fb31etree | snapshot
parent684e508c23d28af8d6ed2c62738a0f60447c8274commit | diff
virtio: disable virtqueue notifications during polling

This is a performance optimization to eliminate vmexits during polling.
It also avoids spurious ioeventfd processing after polling ends.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20161201192652.9509-12-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
hw/virtio/virtio.c diff | blob | history
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