[Qemu-devel] [PATCH v2 1/2] RAMBlocks: qemu_ram_is_shared

["Dr. David Alan Gilbert (git)" <dgilbert@redhat.com>]

From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

Provide a helper to say whether a RAMBlock was created as a
shared mapping.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
 exec.c                    | 5 +++++
 include/exec/cpu-common.h | 1 +
 2 files changed, 6 insertions(+)

diff --git a/exec.c b/exec.c
index aabb035..1f25a12 100644
--- a/exec.c
+++ b/exec.c
@@ -2593,6 +2593,11 @@ MemoryRegion *get_system_io(void)
     return system_io;
 }
 
+bool qemu_ram_is_shared(RAMBlock *rb)
+{
+    return rb->flags & RAM_SHARED;
+}
+
 #endif /* !defined(CONFIG_USER_ONLY) */
 
 /* physical memory access (slow version, mainly for debug) */
diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h
index b62f0d8..4d45a72 100644
--- a/include/exec/cpu-common.h
+++ b/include/exec/cpu-common.h
@@ -69,6 +69,7 @@ RAMBlock *qemu_ram_block_from_host(void *ptr, bool round_offset,
 void qemu_ram_set_idstr(RAMBlock *block, const char *name, DeviceState *dev);
 void qemu_ram_unset_idstr(RAMBlock *block);
 const char *qemu_ram_get_idstr(RAMBlock *rb);
+bool qemu_ram_is_shared(RAMBlock *rb);
 size_t qemu_ram_pagesize(RAMBlock *block);
 size_t qemu_ram_pagesize_largest(void);
 
-- 
2.9.3