Re: [Xen-devel] [PATCH] iommu: fix check for autotranslated hardware domain

[Jan Beulich <jbeulich@xxxxxxxx>]

On 04.03.2020 15:00, Roger Pau Monne wrote:
> The current position of the check_hwdom_reqs is wrong, as there's a
> is_iommu_enabled at the top of the function that will prevent getting
> to the check on systems without an IOMMU, because the hardware domain
> won't have the XEN_DOMCTL_CDF_iommu flag set.
> 
> Move the position of the check so it's done before the
> is_iommu_enabled one, and thus attempts to create a translated
> hardware domain without an IOMMU can be detected.
> 
> Fixes: f89f555827a ('remove late (on-demand) construction of IOMMU page 
> tables')
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>


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