diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2016-08-16 13:27:22 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-09-10 00:28:08 +0300 |
| commit | fc0b9b0e1cbb49017ea882758634cf876be17bc3 (patch) | |
| tree | 2776687fb2ca563fae8a0a8196da7a78fcdac64d /hw/virtio/virtio-pci.h | |
| parent | 947b205fdb46941453f0dc43316e13741d45834c (diff) | |
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 'hw/virtio/virtio-pci.h')
| -rw-r--r-- | hw/virtio/virtio-pci.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h index a7455126f5..0698157b32 100644 --- a/hw/virtio/virtio-pci.h +++ b/hw/virtio/virtio-pci.h @@ -31,6 +31,9 @@ #ifdef CONFIG_VHOST_SCSI #include "hw/virtio/vhost-scsi.h" #endif +#ifdef CONFIG_VHOST_VSOCK +#include "hw/virtio/vhost-vsock.h" +#endif typedef struct VirtIOPCIProxy VirtIOPCIProxy; typedef struct VirtIOBlkPCI VirtIOBlkPCI; @@ -44,6 +47,7 @@ typedef struct VirtIOInputPCI VirtIOInputPCI; typedef struct VirtIOInputHIDPCI VirtIOInputHIDPCI; typedef struct VirtIOInputHostPCI VirtIOInputHostPCI; typedef struct VirtIOGPUPCI VirtIOGPUPCI; +typedef struct VHostVSockPCI VHostVSockPCI; /* virtio-pci-bus */ @@ -329,6 +333,20 @@ struct VirtIOGPUPCI { VirtIOGPU vdev; }; +#ifdef CONFIG_VHOST_VSOCK +/* + * vhost-vsock-pci: This extends VirtioPCIProxy. + */ +#define TYPE_VHOST_VSOCK_PCI "vhost-vsock-pci" +#define VHOST_VSOCK_PCI(obj) \ + OBJECT_CHECK(VHostVSockPCI, (obj), TYPE_VHOST_VSOCK_PCI) + +struct VHostVSockPCI { + VirtIOPCIProxy parent_obj; + VHostVSock vdev; +}; +#endif + /* Virtio ABI version, if we increment this, we break the guest driver. */ #define VIRTIO_PCI_ABI_VERSION 0 |