Hi all, we are working on a new virtio device, namely the Signal Distribution Module (SDM). The SDM routes inter-processor signals intra and inter QEMU instances, using a user-defined communication channel. At the current state the SDM provides a local channel, for intra-QEMU signals, and a channel based on sockets (UNIX or TCP) to exchange signals between processors in different instances of QEMU. Each communication channel exports a common interface for the sake of ease of extension and integration of new channels.
In addition to the virtio version, a platform device version is available as well to be used for cases where a processor is not running Linux but another OS/firmware that does not support virtio. For more details you can have a look at the following link: https://lists.gnu.org/archive/html/qemu-devel/2016-03/msg04492.html where you can find the latest RFC patch set for the QEMU code of the virtio SDM device. Kernel code is publicly accessible from: https://git.virtualopensystems.com/dev/qemu-het-tools/tree/sdm_test_virtio_mod_v1/ I am writing to understand how to start the procedure to include this device in the virtio specification and get a virtio device ID assigned. Thanks in advance for your feedback. Best regards, Christian
