linux-kernel - Re: [patch 15/21] Xen-paravirt: Add Xen interface header files

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Date:	Wed, 14 Feb 2007 13:45:52 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	Andi Kleen <ak@....de>, Andrew Morton <akpm@...l.org>,
	virtualization@...ts.osdl.org, xen-devel@...ts.xensource.com,
	Chris Wright <chrisw@...s-sol.org>,
	Ian Pratt <ian.pratt@...source.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [patch 15/21] Xen-paravirt: Add Xen interface header files

Jeremy Fitzhardinge <jeremy@...p.org> writes:

> Add Xen interface header files. These are taken fairly directly from
> the Xen tree and hence the style is not entirely in accordance with
> Linux guidelines. There is a tension between fitting with Linux coding
> rules and ease of maintenance.
>
> Define macros and inline functions for doing hypercalls into the
> hypervisor.
>
> Signed-off-by: Jeremy Fitzhardinge <jeremy@...source.com>
> Signed-off-by: Ian Pratt <ian.pratt@...source.com>
> Signed-off-by: Christian Limpach <Christian.Limpach@...cam.ac.uk>
> Signed-off-by: Chris Wright <chrisw@...s-sol.org>
>
>
> --
>  include/asm-i386/hypercall.h          |  416 +++++++++++++++++++++++++++++
>  include/asm-i386/hypervisor.h         |   72 +++++

Are hypercall.h and hypervisor.h generic or are they Xen specific.
If they are Xen specific (as it appears) then are inappropriately
named.

>  include/xen/interface/arch-x86_32.h   |  187 +++++++++++++
Why isn't this file include-asm-i386/xen/arch-x86_32.h ?

>  include/xen/interface/elfnote.h       |  133 +++++++++
>  include/xen/interface/event_channel.h |  195 ++++++++++++++
>  include/xen/interface/features.h      |   43 +++
>  include/xen/interface/grant_table.h   |  301 +++++++++++++++++++++
>  include/xen/interface/io/blkif.h      |   96 ++++++
>  include/xen/interface/io/console.h    |   23 +
>  include/xen/interface/io/netif.h      |  152 ++++++++++
>  include/xen/interface/io/ring.h       |  260 ++++++++++++++++++
>  include/xen/interface/io/xenbus.h     |   42 +++
>  include/xen/interface/io/xs_wire.h    |   87 ++++++
>  include/xen/interface/memory.h        |  145 ++++++++++
>  include/xen/interface/physdev.h       |   61 ++++
>  include/xen/interface/sched.h         |   77 +++++
>  include/xen/interface/vcpu.h          |  109 +++++++
>  include/xen/interface/version.h       |   60 ++++
>  include/xen/interface/xen.h           |  445 ++++++++++++++++++++++++++++++++
>  19 files changed, 2904 insertions(+)

Eric
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