Re: [PATCH v2 05/23] xen/arm: empty implementation of grant_table arch specific functions

Konrad Rzeszutek Wilk
2012-08-07T18:23:20Z

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