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[RFC,v2,14/28] hw/arm/smmuv3: Implement dummy replay

Message ID 20180921081819.9203-15-eric.auger@redhat.com
State New
Headers show
Series vSMMUv3/pSMMUv3 2 stage VFIO integration | expand

Commit Message

Eric Auger Sept. 21, 2018, 8:18 a.m. UTC 
The default implementation of memory_region_iommu_replay() shall
not be used as it forces the translation of the whole RAM range.
The purpose of this function is to update the shadow page tables.
However in case of nested stage, there is no shadow page table so
we can simply return.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
 hw/arm/smmuv3.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index afe1758830..d609038724 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -1516,6 +1516,11 @@  static int smmuv3_get_attr(IOMMUMemoryRegion *iommu,
     return -EINVAL;
 }
 
+static inline void
+smmuv3_replay(IOMMUMemoryRegion *iommu_mr, IOMMUNotifier *n)
+{
+}
+
 static void smmuv3_iommu_memory_region_class_init(ObjectClass *klass,
                                                   void *data)
 {
@@ -1524,6 +1529,7 @@  static void smmuv3_iommu_memory_region_class_init(ObjectClass *klass,
     imrc->translate = smmuv3_translate;
     imrc->notify_flag_changed = smmuv3_notify_flag_changed;
     imrc->get_attr = smmuv3_get_attr;
+    imrc->replay = smmuv3_replay;
 }
 
 static const TypeInfo smmuv3_type_info = {