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Re: [Xen-devel] [PATCH v4 12/21] xen/passthrough: iommu: Split generic IOMMU code



>>> On 22.04.14 at 15:14, <julien.grall@xxxxxxxxxx> wrote:
> The generic IOMMU framework code (xen/drivers/passthrough/iommu.c) contains
> functions specific to x86 and PCI.
> 
> Split the framework in 3 distincts files:
>     - iommu.c: contains generic functions shared between x86 and ARM
>                (when it will be supported)
>     - pci.c: contains specific functions for PCI passthrough
>     - x86/iommu.c: contains specific functions for x86
> 
> io.c contains x86 HVM specific code. Only compile for x86.
> 
> This patch is mostly code movement in new files.
> 
> Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>

Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
if one minor inconsistency gets addressed:

> +void __hwdom_init arch_iommu_check_hwdom_reqs(struct domain *d)
> +{
> +    if ( !iommu_enabled )
> +        panic("Presently, iommu must be enabled for pvh dom0\n");
> +}

Message text (containing PVH) and function name (not containing
PVH) don't fit together, nor does the conditional really establish a
connection.

Jan


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