[Qemu-devel] [RFC v4 13/27] hw/arm/smmuv3: Implement dummy replay

Eric Auger posted 27 patches 6 years, 5 months ago
There is a newer version of this series
[Qemu-devel] [RFC v4 13/27] hw/arm/smmuv3: Implement dummy replay
Posted by Eric Auger 6 years, 5 months ago
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 --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index 96d4147533..8db605adab 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -1507,6 +1507,11 @@ 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)
 {
@@ -1515,6 +1520,7 @@ 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 = {
-- 
2.20.1