diff options
Diffstat (limited to 'include/linux/iommu.h')
| -rw-r--r-- | include/linux/iommu.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 91af22a344e2..ab7a1c85af75 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -135,6 +135,12 @@ enum iommu_attr { enum iommu_resv_type { /* Memory regions which must be mapped 1:1 at all times */ IOMMU_RESV_DIRECT, + /* + * Memory regions which are advertised to be 1:1 but are + * commonly considered relaxable in some conditions, + * for instance in device assignment use case (USB, Graphics) + */ + IOMMU_RESV_DIRECT_RELAXABLE, /* Arbitrary "never map this or give it to a device" address ranges */ IOMMU_RESV_RESERVED, /* Hardware MSI region (untranslated) */ |