Hi!
> This communicates with the machine control software via a registry
> residing in a controlling virtual machine. This allows dynamic
> creation, destruction and modification of virtual device
> configurations (network devices, block devices and CPUS, to name some
> examples).
>
> Signed-off-by: Ian Pratt <[email protected]>
> Signed-off-by: Christian Limpach <[email protected]>
> Signed-off-by: Jeremy Fitzhardinge <[email protected]>
> Signed-off-by: Chris Wright <[email protected]>
> ---
> drivers/xen/Makefile | 1
> drivers/xen/xenbus/Makefile | 7
> drivers/xen/xenbus/xenbus_client.c | 528 ++++++++++++++++++++
> drivers/xen/xenbus/xenbus_comms.c | 222 ++++++++
> drivers/xen/xenbus/xenbus_comms.h | 43 +
> drivers/xen/xenbus/xenbus_probe.c | 954 +++++++++++++++++++++++++++++++++++++
> drivers/xen/xenbus/xenbus_xs.c | 828 ++++++++++++++++++++++++++++++++
Hmm, you have word 'xen' three times in this pathname, and then the
file is name 'xs'. Trying to do xen advertising in path names? :-)
> @@ -0,0 +1,565 @@
> +/******************************************************************************
> + * Client-facing interface for the Xenbus driver. In other words, the
> + * interface between the Xenbus and the device-specific code, be it the
> + * frontend or the backend of that driver.
> + *
> + * Copyright (C) 2005 XenSource Ltd
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License version 2
> + * as published by the Free Software Foundation; or, when distributed
> + * separately from the Linux kernel or incorporated into other
> + * software packages, subject to the following license:
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a copy
> + * of this source file (the "Software"), to deal in the Software without
> + * restriction, including without limitation the rights to use, copy, modify,
> + * merge, publish, distribute, sublicense, and/or sell copies of the Software,
> + * and to permit persons to whom the Software is furnished to do so, subject to
> + * the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included in
> + * all copies or substantial portions of the Software.
So this is dual BSD/GPL?
> +#include <linux/types.h>
> +#include <xen/interface/xen.h>
> +#include <xen/interface/event_channel.h>
> +#include "../../../arch/i386/paravirt-xen/events.h"
> +#include <xen/grant_table.h>
> +#include <xen/xenbus.h>
> +#include <xen/driver_util.h>
> +
> +char *xenbus_strstate(enum xenbus_state state)
> +{
> + static char *name[] = {
> + [ XenbusStateUnknown ] = "Unknown",
Constants are normally XENBUS_STATE_UNKNOWN in linux...
Can we get description of its kernel-user interface in Documentation/
somewhere?
> +#include <asm/io.h>
> +#include <asm/page.h>
> +//#include <asm/maddr.h>
> +#include <asm/pgtable.h>
> +#include <asm/hypervisor.h>
> +#include <xen/xenbus.h>
> +//#include <xen/xen_proc.h>
> +//#include <xen/evtchn.h>
> +#include <xen/features.h>
> +//#include <xen/hvm.h>
> +
Just delete the lines.
> +#ifdef HAVE_XEN_PLATFORM_COMPAT_H
> +#include <xen/platform-compat.h>
> +#endif
Is this really neccessary?
> + .bus = {
> + .name = "xen-backend",
> + .match = xenbus_match,
> + .probe = xenbus_dev_probe,
> + .remove = xenbus_dev_remove,
> +// .shutdown = xenbus_dev_shutdown,
Delete.
> --- /dev/null
> +++ b/drivers/xen/xenbus/xenbus_xs.c
> @@ -0,0 +1,840 @@
> +/******************************************************************************
> + * xenbus_xs.c
> + *
> + * This is the kernel equivalent of the "xs" library. We don't need everything
> + * and we use xenbus_comms for communication.
One line explanation what xs is would be nice.
Pavel
--
Thanks for all the (sleeping) penguins.
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