iommu/vt-d: Add build dependency on IOASID

IOASID code is needed by VT-d scalable mode for PASID allocation.
Add explicit dependency such that IOASID is built-in whenever Intel
IOMMU is enabled.
Otherwise, aux domain code will fail when IOMMU is built-in and IOASID
is compiled as a module.

Fixes: 59a623374dc38 ("iommu/vt-d: Replace Intel specific PASID allocator with IOASID")
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index d2fade9..2514954 100644 (file)
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -188,6 +188,7 @@ config INTEL_IOMMU
        select NEED_DMA_MAP_STATE
        select DMAR_TABLE
        select SWIOTLB
+       select IOASID
        help
          DMA remapping (DMAR) devices support enables independent address
          translations for Direct Memory Access (DMA) from devices.