Re: [Xen-devel] [RFC v4 7/8] xen/smmu: Add a new config define for legacy SMMU

[Julien Grall <julien.grall@xxxxxxxxxx>]

Hi Sameer,

On 19/12/17 03:17, Sameer Goel wrote:
> Add a new config item to control compilation for legacy arm SMMU.
>
> Signed-off-by: Sameer Goel <sameer.goel@xxxxxxxxxx>
> ---
>   xen/drivers/passthrough/arm/Kconfig  | 6 ++++++
>   xen/drivers/passthrough/arm/Makefile | 2 +-
>   2 files changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/xen/drivers/passthrough/arm/Kconfig 
> b/xen/drivers/passthrough/arm/Kconfig
> index cda899f608..597f58f10b 100644
> --- a/xen/drivers/passthrough/arm/Kconfig
> +++ b/xen/drivers/passthrough/arm/Kconfig
> @@ -6,3 +6,9 @@ config ARM_SMMU_v3
>          Support for implementations of the ARM System MMU architecture
>          version 3.
>   
> +config ARM_SMMU
> +       bool "ARM Legacy SMMU Support"
> +       depends on (ARM_64 || ARM)
ARM_64 will select ARM. So ARM is enough here.

Cheers,

> +       help
> +        Support for implementations of the ARM System MMU architecture
> +        version 1 and 2.
> diff --git a/xen/drivers/passthrough/arm/Makefile 
> b/xen/drivers/passthrough/arm/Makefile
> index e14732b55c..5b3eb1545e 100644
> --- a/xen/drivers/passthrough/arm/Makefile
> +++ b/xen/drivers/passthrough/arm/Makefile
> @@ -1,3 +1,3 @@
>   obj-y += iommu.o
> -obj-y += smmu.o
> +obj-$(CONFIG_ARM_SMMU) += smmu.o
>   obj-$(CONFIG_ARM_SMMU_v3) += smmu-v3.o
--
Julien Grall

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