diff options
author | Peter Xu <peterx@redhat.com> | 2017-05-19 11:19:47 +0800 |
---|---|---|
committer | Michael S. Tsirkin <mst@redhat.com> | 2017-05-25 21:25:27 +0300 |
commit | dbaabb25f441264d9029dc53e84a156269ecd275 (patch) | |
tree | 16718eb5d66bc8f9f3b25308745efdf95c6483c5 /hw/i386/intel_iommu_internal.h | |
parent | f80c98740e8da9fa0e4056f174ca66a3afb1d15b (diff) |
intel_iommu: support passthrough (PT)
Hardware support for VT-d device passthrough. Although current Linux can
live with iommu=pt even without this, but this is faster than when using
software passthrough.
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Liu, Yi L <yi.l.liu@linux.intel.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'hw/i386/intel_iommu_internal.h')
-rw-r--r-- | hw/i386/intel_iommu_internal.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h index 29d67075f4..0e73a65bf2 100644 --- a/hw/i386/intel_iommu_internal.h +++ b/hw/i386/intel_iommu_internal.h @@ -187,6 +187,7 @@ /* Interrupt Remapping support */ #define VTD_ECAP_IR (1ULL << 3) #define VTD_ECAP_EIM (1ULL << 4) +#define VTD_ECAP_PT (1ULL << 6) #define VTD_ECAP_MHMV (15ULL << 20) /* CAP_REG */ |