Re: [Xen-devel] [PATCH v4 1/6] xen/arm: introduce p2m_is_mmio

[Julien Grall <julien.grall@xxxxxxx>]

Hi Stefano,

On 07/08/2019 01:23, Stefano Stabellini wrote:
> Add a p2m_is_mmio macro for easy checkings.
>
> Signed-off-by: Stefano Stabellini <stefanos@xxxxxxxxxx>
Acked-by: Julien Grall <julien.grall@xxxxxxx>

Cheers,

> ---
>   xen/include/asm-arm/p2m.h | 6 ++++++
>   1 file changed, 6 insertions(+)
>
> diff --git a/xen/include/asm-arm/p2m.h b/xen/include/asm-arm/p2m.h
> index 03f2ee75c1..31902317da 100644
> --- a/xen/include/asm-arm/p2m.h
> +++ b/xen/include/asm-arm/p2m.h
> @@ -132,6 +132,11 @@ typedef enum {
>   #define P2M_RAM_TYPES (p2m_to_mask(p2m_ram_rw) |        \
>                          p2m_to_mask(p2m_ram_ro))
>   
> +/* MMIO types */
> +#define P2M_MMIO_TYPES (p2m_to_mask(p2m_mmio_direct_dev) | \
> +                        p2m_to_mask(p2m_mmio_direct_nc)  | \
> +                        p2m_to_mask(p2m_mmio_direct_c))
> +
>   /* Grant mapping types, which map to a real frame in another VM */
>   #define P2M_GRANT_TYPES (p2m_to_mask(p2m_grant_map_rw) |  \
>                            p2m_to_mask(p2m_grant_map_ro))
> @@ -146,6 +151,7 @@ typedef enum {
>   #define p2m_is_any_ram(_t) (p2m_to_mask(_t) &                   \
>                               (P2M_RAM_TYPES | P2M_GRANT_TYPES |  \
>                                P2M_FOREIGN_TYPES))
> +#define p2m_is_mmio(_t) (p2m_to_mask(_t) & P2M_MMIO_TYPES)
>   
>   /* All common type definitions should live ahead of this inclusion. */
>   #ifdef _XEN_P2M_COMMON_H
--
Julien Grall

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