Memory: Enable writeback for given memory region
Add an option to trigger memory writeback to sync given memory region
with the corresponding backing store, case one is available.
This extends the support for persistent memory, allowing syncing on-demand.
Signed-off-by: Beata Michalska <beata.michalska@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20191121000843.24844-3-beata.michalska@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
diff --git a/include/exec/memory.h b/include/exec/memory.h
index e499dc2..27a84e0 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -1265,6 +1265,12 @@
*/
void memory_region_ram_resize(MemoryRegion *mr, ram_addr_t newsize,
Error **errp);
+/**
+ * memory_region_do_writeback: Trigger writeback for selected address range
+ * [addr, addr + size]
+ *
+ */
+void memory_region_do_writeback(MemoryRegion *mr, hwaddr addr, hwaddr size);
/**
* memory_region_set_log: Turn dirty logging on or off for a region.
