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authorStefan Hajnoczi <stefanha@redhat.com>2016-08-16 13:27:22 +0100
committerMichael S. Tsirkin <mst@redhat.com>2016-09-10 00:28:08 +0300
commitfc0b9b0e1cbb49017ea882758634cf876be17bc3 (patch)
tree2776687fb2ca563fae8a0a8196da7a78fcdac64d /include/hw/pci/pci.h
parent947b205fdb46941453f0dc43316e13741d45834c (diff)
downloadfocaccia-qemu-fc0b9b0e1cbb49017ea882758634cf876be17bc3.tar.gz
focaccia-qemu-fc0b9b0e1cbb49017ea882758634cf876be17bc3.zip
vhost-vsock: add virtio sockets device
Implement the new virtio sockets device for host<->guest communication
using the Sockets API.  Most of the work is done in a vhost kernel
driver so that virtio-vsock can hook into the AF_VSOCK address family.
The QEMU vhost-vsock device handles configuration and live migration
while the rx/tx happens in the vhost_vsock.ko Linux kernel driver.

The vsock device must be given a CID (host-wide unique address):

  # qemu -device vhost-vsock-pci,id=vhost-vsock-pci0,guest-cid=3 ...

For more information see:
http://qemu-project.org/Features/VirtioVsock

[Endianness fixes and virtio-ccw support by Claudio Imbrenda
<imbrenda@linux.vnet.ibm.com>]

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
[mst: rebase to master]
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/hw/pci/pci.h')
-rw-r--r--include/hw/pci/pci.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index 929ec2fb07..e8b83bbb1e 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -79,6 +79,7 @@
 #define PCI_DEVICE_ID_VIRTIO_SCSI        0x1004
 #define PCI_DEVICE_ID_VIRTIO_RNG         0x1005
 #define PCI_DEVICE_ID_VIRTIO_9P          0x1009
+#define PCI_DEVICE_ID_VIRTIO_VSOCK       0x1012
 
 #define PCI_VENDOR_ID_REDHAT             0x1b36
 #define PCI_DEVICE_ID_REDHAT_BRIDGE      0x0001