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    SubjectRe: [PATCH v2 05/23] xen/arm: empty implementation of grant_table arch specific functions
    On Mon, Aug 06, 2012 at 03:27:08PM +0100, Stefano Stabellini wrote:
    > Changes in v2:
    >
    > - return -ENOSYS rather than -1.

    Ack.
    >
    > Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
    > ---
    > 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..dbd1330
    > --- /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 -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 -ENOSYS;
    > +}
    > --
    > 1.7.2.5


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