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authorTiwei Bie <tiwei.bie@intel.com>2018-06-01 06:02:39 +0200
committerMichael S. Tsirkin <mst@redhat.com>2018-06-12 03:59:29 +0200
commitcfecc2918d2b3c5e86ff1a6c95eabbbb17bb8fd3 (patch)
treee1d6119d7345b602e538f1eb6be11ad432e4ee3c /include
parentvhost: fix info leak due to uninitialized memory (diff)
downloadlinux-cfecc2918d2b3c5e86ff1a6c95eabbbb17bb8fd3.tar.xz
linux-cfecc2918d2b3c5e86ff1a6c95eabbbb17bb8fd3.zip
virtio_pci: support enabling VFs
There is a new feature bit allocated in virtio spec to support SR-IOV (Single Root I/O Virtualization): https://github.com/oasis-tcs/virtio-spec/issues/11 This patch enables the support for this feature bit in virtio driver. Signed-off-by: Tiwei Bie <tiwei.bie@intel.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/uapi/linux/virtio_config.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/uapi/linux/virtio_config.h b/include/uapi/linux/virtio_config.h
index 308e2096291f..b7c1f4e7d59e 100644
--- a/include/uapi/linux/virtio_config.h
+++ b/include/uapi/linux/virtio_config.h
@@ -49,7 +49,7 @@
* transport being used (eg. virtio_ring), the rest are per-device feature
* bits. */
#define VIRTIO_TRANSPORT_F_START 28
-#define VIRTIO_TRANSPORT_F_END 34
+#define VIRTIO_TRANSPORT_F_END 38
#ifndef VIRTIO_CONFIG_NO_LEGACY
/* Do we get callbacks when the ring is completely used, even if we've
@@ -71,4 +71,9 @@
* this is for compatibility with legacy systems.
*/
#define VIRTIO_F_IOMMU_PLATFORM 33
+
+/*
+ * Does the device support Single Root I/O Virtualization?
+ */
+#define VIRTIO_F_SR_IOV 37
#endif /* _UAPI_LINUX_VIRTIO_CONFIG_H */