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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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2
hw/virtio.h
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@ -99,7 +99,7 @@ typedef struct {
int (*load_done)(DeviceState *d, QEMUFile *f);
unsigned (*get_features)(DeviceState *d);
bool (*query_guest_notifiers)(DeviceState *d);
int (*set_guest_notifiers)(DeviceState *d, bool assigned);
int (*set_guest_notifiers)(DeviceState *d, int nvqs, bool assigned);
int (*set_host_notifier)(DeviceState *d, int n, bool assigned);
void (*vmstate_change)(DeviceState *d, bool running);
} VirtIOBindings;