On Thu, 15 Sep 2016, Julien Grall wrote:
> The back pointer will be usefult later to get the domain when we only
> have the p2m in hand.
>
> Signed-off-by: Julien Grall <julien.gr...@arm.com>
Acked-by: Stefano Stabellini <sstabell...@kernel.org>
> ---
> Changes in v2:
> - Patch added
> ---
> xen/arch/arm/p2m.c | 1 +
> xen/include/asm-arm/p2m.h | 3 +++
> 2 files changed, 4 insertions(+)
>
> diff --git a/xen/arch/arm/p2m.c b/xen/arch/arm/p2m.c
> index 950a607..5cf136f 100644
> --- a/xen/arch/arm/p2m.c
> +++ b/xen/arch/arm/p2m.c
> @@ -1391,6 +1391,7 @@ int p2m_init(struct domain *d)
> if ( rc != 0 )
> return rc;
>
> + p2m->domain = d;
> p2m->max_mapped_gfn = _gfn(0);
> p2m->lowest_mapped_gfn = _gfn(ULONG_MAX);
>
> diff --git a/xen/include/asm-arm/p2m.h b/xen/include/asm-arm/p2m.h
> index b9269e4..b27a3a1 100644
> --- a/xen/include/asm-arm/p2m.h
> +++ b/xen/include/asm-arm/p2m.h
> @@ -81,6 +81,9 @@ struct p2m_domain {
> * enough available bits to store this information.
> */
> struct radix_tree_root mem_access_settings;
> +
> + /* back pointer to domain */
> + struct domain *domain;
> };
>
> /*
> --
> 1.9.1
>
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