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Virtio-msg April 2026

virtio-msg@lists.linaro.org

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QEMU virtio-msg documentation

by Edgar E. Iglesias

Hi all, I've updated the QEMU virtio-msg branch, mainly by adding documentation for the virtio-msg-bus AMP PCI device. In the process of updating the documentation, I started to question the value of the multi-FIFO support in QEMU. It may just add confusion, and the Linux driver doesn't support it yet. So I chose to remove it and leave that for future work. Here's the branch and the relevant spec files: https://github.com/edgarigl/qemu/tree/edgar/virtio-msg-rfc virtio-msg-bus AMP PCI spec (temporary location): https://github.com/edgarigl/qemu/blob/edgar/virtio-msg-rfc/docs/system/devi… QEMU virtio-msg AMP PCI device usage: https://github.com/edgarigl/qemu/blob/edgar/virtio-msg-rfc/docs/system/devi… Let me know if you have any comments. Best regards, Edgar

6 days, 15 hours

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