[PATCH 01/10] iommu/vt-d: Introduce native SVM capable flag

Jacob Pan
2019-11-15T23:05:07Z

Shared Virtual Memory(SVM) is based on a collective set of hardware
features detected at runtime. There are requirements for matching CPU
and IOMMU capabilities.

This patch introduces a flag which will be used to mark and test the
capability of SVM.

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
---
include/linux/intel-iommu.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index ed11ef594378..63118991824c 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -433,6 +433,7 @@ enum {

#define VTD_FLAG_TRANS_PRE_ENABLED (1 << 0)
#define VTD_FLAG_IRQ_REMAP_PRE_ENABLED (1 << 1)
+#define VTD_FLAG_SVM_CAPABLE (1 << 2)

extern int intel_iommu_sm;

--
2.7.4