linux-kernel - Re: [PATCH WIP 1/6] xen/arm: fix the shared_info and vcpu

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Message-ID: <alpine.DEB.2.02.1207131746380.23783@kaball.uk.xensource.com>
Date:	Fri, 13 Jul 2012 17:48:18 +0100
From:	Stefano Stabellini <stefano.stabellini@...citrix.com>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.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>,
	Ian Campbell <Ian.Campbell@...rix.com>,
	"Tim (Xen.org)" <tim@....org>
Subject: Re: [PATCH WIP 1/6] xen/arm: fix the shared_info and vcpu_info
 structs

On Mon, 9 Jul 2012, Konrad Rzeszutek Wilk wrote:
> On Fri, Jun 22, 2012 at 05:14:40PM +0100, Stefano Stabellini wrote:
> > Fix the shared_info and vcpu_info struct definitions to match the ones
> > in Xen.
> 
> Is there a corresponding c/s in the Xen tree for this?

That's the problem: arch_vcpu_info and arch_shared_info haven't been
defined in Xen yet on ARM.
I think the ones below have been copied from xen/x86 by mistake.


> > 
> > Signed-off-by: Stefano Stabellini <stefano.stabellini@...citrix.com>
> > ---
> >  arch/arm/include/asm/xen/interface.h |   15 +++------------
> >  1 files changed, 3 insertions(+), 12 deletions(-)
> > 
> > diff --git a/arch/arm/include/asm/xen/interface.h b/arch/arm/include/asm/xen/interface.h
> > index 3ad2d4b..8ab7cebb 100644
> > --- a/arch/arm/include/asm/xen/interface.h
> > +++ b/arch/arm/include/asm/xen/interface.h
> > @@ -40,19 +40,10 @@ DEFINE_GUEST_HANDLE(xen_pfn_t);
> >  #endif
> >  
> >  /* Maximum number of virtual CPUs in multi-processor guests. */
> > -#define MAX_VIRT_CPUS 32
> > +#define MAX_VIRT_CPUS 1
> >  
> > -struct arch_vcpu_info {
> > -    unsigned long cr2;
> > -    unsigned long pad; /* sizeof(vcpu_info_t) == 64 */
> > -};
> > -
> > -struct arch_shared_info {
> > -    unsigned long max_pfn;                  /* max pfn that appears in table */
> > -    /* Frame containing list of mfns containing list of mfns containing p2m. */
> > -    unsigned long pfn_to_mfn_frame_list_list;
> > -    unsigned long nmi_reason;
> > -};
> > +struct arch_vcpu_info { };
> > +struct arch_shared_info { };
> >  
> >  /* XXX: Move pvclock definitions some place arch independent */
> >  struct pvclock_vcpu_time_info {
> > -- 
> > 1.7.2.5
> > 
> > --
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