linux-kernel - Re: [PATCH 01/24] arm: initial Xen support

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Date:	Thu, 2 Aug 2012 08:35:51 +0100
From:	Ian Campbell <Ian.Campbell@...rix.com>
To:	Rob Herring <robherring2@...il.com>
CC:	Stefano Stabellini <Stefano.Stabellini@...citrix.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	"linaro-dev@...ts.linaro.org" <linaro-dev@...ts.linaro.org>,
	"arnd@...db.de" <arnd@...db.de>,
	"konrad.wilk@...cle.com" <konrad.wilk@...cle.com>,
	"catalin.marinas@....com" <catalin.marinas@....com>,
	"Tim (Xen.org)" <tim@....org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 01/24] arm: initial Xen support

On Wed, 2012-08-01 at 19:27 +0100, Rob Herring wrote:
> On 07/26/2012 10:33 AM, Stefano Stabellini wrote:
> > - Basic hypervisor.h and interface.h definitions.
> > - Skelethon enlighten.c, set xen_start_info to an empty struct.
> > - Do not limit xen_initial_domain to PV guests.
> > 
> > The new code only compiles when CONFIG_XEN is set, that is going to be
> > added to arch/arm/Kconfig in a later patch.
> > 
> > Signed-off-by: Stefano Stabellini <stefano.stabellini@...citrix.com>
> > ---
> >  arch/arm/Makefile                     |    1 +
> >  arch/arm/include/asm/hypervisor.h     |    6 +++
> >  arch/arm/include/asm/xen/hypervisor.h |   19 ++++++++++
> >  arch/arm/include/asm/xen/interface.h  |   64 +++++++++++++++++++++++++++++++++
> 
> These headers don't seem particularly ARM specific. Could they be moved
> to asm-generic or include/linux?

Or perhaps include/xen.

A bunch of it also looks like x86 specific stuff which has crept in.
e.g. PARAVIRT_LAZY_FOO and paravirt_get_lazy_mode() are arch/x86
specific and shouldn't be called from common code (and aren't, AFAICT).



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