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| author | Anthony Liguori <aliguori@us.ibm.com> | 2011-10-20 08:42:08 -0500 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2011-10-20 08:42:08 -0500 |
| commit | 1f99b94932fcf0a543e46e24875fc2b3a8c304a7 (patch) | |
| tree | deec2cb0dbebe1e6295b7068c85cdf181a378599 /hw/virtio-pci.h | |
| parent | 8a9236f1d2e91ddd31e3eeae8fe27392c07324a9 (diff) | |
| parent | d9b36a6e562450fd633ea9352f43885b86693838 (diff) | |
Merge remote-tracking branch 'aneesh/for-upstream-6' into staging
Conflicts:
trace-events
Diffstat (limited to 'hw/virtio-pci.h')
| -rw-r--r-- | hw/virtio-pci.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/virtio-pci.h b/hw/virtio-pci.h index 14c10f7d67..f8404de92b 100644 --- a/hw/virtio-pci.h +++ b/hw/virtio-pci.h @@ -18,6 +18,11 @@ #include "virtio-net.h" #include "virtio-serial.h" +/* Performance improves when virtqueue kick processing is decoupled from the + * vcpu thread using ioeventfd for some devices. */ +#define VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT 1 +#define VIRTIO_PCI_FLAG_USE_IOEVENTFD (1 << VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT) + typedef struct { PCIDevice pci_dev; VirtIODevice *vdev; |