Re: [Xen-devel] [PATCH 05/24] xen/arm: empty implementation of grant_table arch specific functions

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Wed, 1 Aug 2012, Konrad Rzeszutek Wilk wrote:
> On Thu, Jul 26, 2012 at 04:33:47PM +0100, Stefano Stabellini wrote:
> > Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> > ---
> >  arch/arm/xen/Makefile      |    2 +-
> >  arch/arm/xen/grant-table.c |   53 
> > ++++++++++++++++++++++++++++++++++++++++++++
> >  2 files changed, 54 insertions(+), 1 deletions(-)
> >  create mode 100644 arch/arm/xen/grant-table.c
> > 
> > diff --git a/arch/arm/xen/Makefile b/arch/arm/xen/Makefile
> > index b9d6acc..4384103 100644
> > --- a/arch/arm/xen/Makefile
> > +++ b/arch/arm/xen/Makefile
> > @@ -1 +1 @@
> > -obj-y              := enlighten.o hypercall.o
> > +obj-y              := enlighten.o hypercall.o grant-table.o
> > diff --git a/arch/arm/xen/grant-table.c b/arch/arm/xen/grant-table.c
> > new file mode 100644
> > index 0000000..0a4ee80
> > --- /dev/null
> > +++ b/arch/arm/xen/grant-table.c
> > @@ -0,0 +1,53 @@
> > +/******************************************************************************
> > + * grant_table.c
> > + * ARM specific part
> > + *
> > + * Granting foreign access to our memory reservation.
> > + *
> > + * 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.
> > + *
> > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 
> > OR
> > + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> > + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
> > THE
> > + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> > + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> > + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
> > DEALINGS
> > + * IN THE SOFTWARE.
> > + */
> > +
> > +#include <xen/interface/xen.h>
> > +#include <xen/page.h>
> > +#include <xen/grant_table.h>
> > +
> > +int arch_gnttab_map_shared(unsigned long *frames, unsigned long nr_gframes,
> > +                      unsigned long max_nr_gframes,
> > +                      void **__shared)
> > +{
> > +   return -1;
> 
> -ENOSYS
> > +}
> > +
> > +void arch_gnttab_unmap(void *shared, unsigned long nr_gframes)
> > +{
> > +   return;
> > +}
> > +
> > +int arch_gnttab_map_status(uint64_t *frames, unsigned long nr_gframes,
> > +                      unsigned long max_nr_gframes,
> > +                      grant_status_t **__shared)
> > +{
> > +   return -1;
> 
> Same here -ENOSYS

OK, I'll do that

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