Re: [PATCH v12 8/8] vfio/type1: return MSI geometry through VFIO_IOMMU_GET_INFO capability chains

Hi Eric, [auto build test ERROR on vfio/next] [also build test ERROR on v4.7] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url:

[PATCH v12 8/8] vfio/type1: return MSI geometry through VFIO_IOMMU_GET_INFO capability chains

This patch allows the user-space to retrieve the MSI geometry. The implementation is based on capability chains, now also added to VFIO_IOMMU_GET_INFO. The returned info comprise: - whether the MSI IOVA are constrained to a reserved range (x86 case) and in the positive, the start/end of the