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virtio: don't waste irqfds on control vqs

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Pass nvqs to set_guest_notifiers. This makes it possible to
save on irqfds by not allocating one for the control vq
for virtio-net.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2012-12-20 14:28:58 +02:00
parent 8e4a424b30
commit 2d620f593d
4 changed files with 23 additions and 9 deletions
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1
hw/virtio-pci.h
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@ -51,6 +51,7 @@ typedef struct {
bool ioeventfd_disabled;
bool ioeventfd_started;
VirtIOIRQFD *vector_irqfd;
int nvqs_with_notifiers;
} VirtIOPCIProxy;
void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev);