[v4,01/16] memory: Add FlatView foreach function

Commit Message

Alexander Bulekov Oct. 15, 2020, 1:41 p.m. UTC

Acked-by: Paolo Bonzini <[e-mail]>
Signed-off-by: Alexander Bulekov <[e-mail]>
---
 include/exec/memory.h | 5 +++++
 softmmu/memory.c      | 9 +++++++++
 2 files changed, 14 insertions(+)

Patch

diff --git a/include/exec/memory.h b/include/exec/memory.h
index 622207bde1..233655b29a 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -719,6 +719,11 @@  static inline FlatView *address_space_to_flatview(AddressSpace *as)
     return qatomic_rcu_read(&as->current_map);
 }
 
+typedef int (*flatview_cb)(ram_addr_t start,
+                           ram_addr_t len,
+                           const MemoryRegion*, void*);
+
+void flatview_for_each_range(FlatView *fv, flatview_cb cb , void *opaque);
 
 /**
  * struct MemoryRegionSection: describes a fragment of a #MemoryRegion
diff --git a/softmmu/memory.c b/softmmu/memory.c
index 403ff3abc9..c46b0c6d65 100644
--- a/softmmu/memory.c
+++ b/softmmu/memory.c
@@ -656,6 +656,15 @@  static void render_memory_region(FlatView *view,
     }
 }
 
+void flatview_for_each_range(FlatView *fv, flatview_cb cb , void *opaque)
+{
+    FlatRange *fr;
+    FOR_EACH_FLAT_RANGE(fr, fv) {
+        if (cb(fr->addr.start, fr->addr.size, fr->mr, opaque))
+            break;
+    }
+}
+
 static MemoryRegion *memory_region_get_flatview_root(MemoryRegion *mr)
 {
     while (mr->enabled) {