[RFC v6 04/24] memory: Add IOMMU_ATTR_MSI_TRANSLATE IOMMU memory region attribute

Eric Auger posted 24 patches 5 years, 10 months ago
Maintainers: "Michael S. Tsirkin" <mst@redhat.com>, Eric Auger <eric.auger@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Alex Williamson <alex.williamson@redhat.com>, Cornelia Huck <cohuck@redhat.com>
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[RFC v6 04/24] memory: Add IOMMU_ATTR_MSI_TRANSLATE IOMMU memory region attribute
Posted by Eric Auger 5 years, 10 months ago
We introduce a new IOMMU Memory Region attribute, IOMMU_ATTR_MSI_TRANSLATE
which tells whether the virtual IOMMU translates MSIs. ARM SMMU
will expose this attribute since, as opposed to Intel DMAR, MSIs
are translated as any other DMA requests.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
 include/exec/memory.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/exec/memory.h b/include/exec/memory.h
index b9d2f0a437..f2c773163f 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -215,6 +215,7 @@ typedef struct MemoryRegionClass {
 enum IOMMUMemoryRegionAttr {
     IOMMU_ATTR_SPAPR_TCE_FD,
     IOMMU_ATTR_VFIO_NESTED,
+    IOMMU_ATTR_MSI_TRANSLATE,
 };
 
 /**
-- 
2.20.1