linux-kernel - Re: [Xen-devel] [PATCH 4/7] xen: The entrance for PV extension of HVM

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Date:	Tue, 2 Mar 2010 09:41:13 +0800
From:	Sheng Yang <sheng@...ux.intel.com>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	Keir Fraser <keir.fraser@...citrix.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>,
	Ian Pratt <Ian.Pratt@...citrix.com>,
	"xen-devel" <xen-devel@...ts.xensource.com>,
	Ian Campbell <Ian.Campbell@...rix.com>,
	Stefano Stabellini <stefano.stabellini@...citrix.com>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>
Subject: Re: [Xen-devel] [PATCH 4/7] xen: The entrance for PV extension of HVM

On Tuesday 02 March 2010 09:05:36 Jeremy Fitzhardinge wrote:
> On 03/01/2010 01:38 AM, Sheng Yang wrote:
> > xen_guest_init() would setup the environment.
> >
> > Cc: Ingo Molnar<mingo@...e.hu>
> > Signed-off-by: Sheng Yang<sheng@...ux.intel.com>
> > ---
> >   arch/x86/kernel/setup.c |    8 ++++++++
> >   1 files changed, 8 insertions(+), 0 deletions(-)
> >
> > diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
> > index 5d9e40c..2b61d46 100644
> > --- a/arch/x86/kernel/setup.c
> > +++ b/arch/x86/kernel/setup.c
> > @@ -113,6 +113,10 @@
> >   #endif
> >   #include<asm/mce.h>
> >
> > +#ifdef CONFIG_XEN
> > +#include<xen/xen.h>
> > +#endif
> 
> No #ifdefs; put them in xen.h if necessary (which they aren't).  This
> probably isn't the right header anyway; this is specifically for testing
> the presence of Xen and/or the current domain type.  It shouldn't have
> any other prototypes in it, or include anything else (it probably
> already includes too much).  Given this is already x86-specific code,
> include asm/xen/something.h.

Would update it. Thanks.

-- 
regards
Yang, Sheng

> 
> > +
> >   /*
> >    * end_pfn only includes RAM, while max_pfn_mapped includes all e820
> > entries. * The direct mapping extends to max_pfn_mapped, so that we can
> > directly access @@ -740,6 +744,10 @@ void __init setup_arch(char
> > **cmdline_p)
> >
> >   	x86_init.oem.arch_setup();
> >
> > +#ifdef CONFIG_XEN
> > +	xen_guest_init();
> > +#endif
> 
> Again, no #ifdefs here.  Put an #ifdeffed stub in an appropriate header.
> 
>      J
> 
	
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