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[Qemu-devel] [PATCH v8 3/9] memory: provide iommu_replay_all()


From: Peter Xu
Subject: [Qemu-devel] [PATCH v8 3/9] memory: provide iommu_replay_all()
Date: Thu, 6 Apr 2017 15:08:38 +0800

This is an "global" version of exising memory_region_iommu_replay() - we
announce the translations to all the registered notifiers, instead of a
specific one.

Reviewed-by: David Gibson <address@hidden>
Signed-off-by: Peter Xu <address@hidden>
---
 include/exec/memory.h | 8 ++++++++
 memory.c              | 9 +++++++++
 2 files changed, 17 insertions(+)

diff --git a/include/exec/memory.h b/include/exec/memory.h
index 07e43da..fb7dff3 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -713,6 +713,14 @@ void memory_region_iommu_replay(MemoryRegion *mr, 
IOMMUNotifier *n,
                                 bool is_write);
 
 /**
+ * memory_region_iommu_replay_all: replay existing IOMMU translations
+ * to all the notifiers registered.
+ *
+ * @mr: the memory region to observe
+ */
+void memory_region_iommu_replay_all(MemoryRegion *mr);
+
+/**
  * memory_region_unregister_iommu_notifier: unregister a notifier for
  * changes to IOMMU translation entries.
  *
diff --git a/memory.c b/memory.c
index 7496b3d..b4ed67b 100644
--- a/memory.c
+++ b/memory.c
@@ -1642,6 +1642,15 @@ void memory_region_iommu_replay(MemoryRegion *mr, 
IOMMUNotifier *n,
     }
 }
 
+void memory_region_iommu_replay_all(MemoryRegion *mr)
+{
+    IOMMUNotifier *notifier;
+
+    IOMMU_NOTIFIER_FOREACH(notifier, mr) {
+        memory_region_iommu_replay(mr, notifier, false);
+    }
+}
+
 void memory_region_unregister_iommu_notifier(MemoryRegion *mr,
                                              IOMMUNotifier *n)
 {
-- 
2.7.4




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