memory: Extract memory_region_msync() from memory_region_writeback()
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20200508062456.23344-3-philmd@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 1b7cfdd..3e00cdb 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -1473,8 +1473,19 @@
*/
void memory_region_ram_resize(MemoryRegion *mr, ram_addr_t newsize,
Error **errp);
+
/**
- * memory_region_writeback: Trigger cache writeback or msync for
+ * memory_region_msync: Synchronize selected address range of
+ * a memory mapped region
+ *
+ * @mr: the memory region to be msync
+ * @addr: the initial address of the range to be sync
+ * @size: the size of the range to be sync
+ */
+void memory_region_msync(MemoryRegion *mr, hwaddr addr, hwaddr size);
+
+/**
+ * memory_region_writeback: Trigger cache writeback for
* selected address range
*
* @mr: the memory region to be updated
