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[Qemu-devel] Extending virtio_console to support multiple ports

From: Amit Shah
Subject: [Qemu-devel] Extending virtio_console to support multiple ports
Date: Tue, 25 Aug 2009 11:47:20 +0530

Hello all,

Here is a new iteration of the patch series that implements a
transport for guest and host communications.

The code has been updated to reuse the virtio-console device instead
of creating a new virtio-serial device.

I've tested for compatibility (old qemu & new kernel, new qemu & old
kernel, new qemu & new kernel) and it all works fine.

There are a few items on my todo list but this works well.

New since last send:
- connect/disconnect notifications on connections to ports

- Look at converting to a tty interface instead of the current char
- Migration: save the extra state that's necessary
- Convert all config writes to little endian in qemu / convert from
little endian to host endian in guest
- Address a few FIXMEs spread in the code
- Introduce a watermark to stop a rogue host process flooding guest
with data
- Make connect/disconnect work for guest

Please review.

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