Hello all, Here is a new iteration of the patch series that implements a transport for guest and host communications. I've tested for compatibility (old qemu & new kernel, new qemu & old kernel, new qemu & new kernel) and it all works fine*. Migration works with the patch Juan just posted. There are a few items on my todo list but this works well. New since last send: - migrate per-port buffers that are queued up - in-qemu api for open/close/read/write of ports. - the read() is a callback that's invoked when complete data corresponding to one write() request on the guest is available. - removed comments from virtio_console.c that are no longer relevant. - address review comments by Juan TODO: - 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 Conditions: * Heavy IO on an hvc port and a non-hvc port causes memory corruption each time, same place. It could be realted to locking but I doubt that. This still has to be sorted out Please review. Amit -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html