diff --git a/qemu/aarch64.h b/qemu/aarch64.h
index 85f0186a..33870583 100644
--- a/qemu/aarch64.h
+++ b/qemu/aarch64.h
@@ -2024,6 +2024,7 @@
 #define memory_region_dispatch_read memory_region_dispatch_read_aarch64
 #define memory_region_dispatch_read1 memory_region_dispatch_read1_aarch64
 #define memory_region_dispatch_write memory_region_dispatch_write_aarch64
+#define memory_region_do_writeback memory_region_do_writeback_aarch64
 #define memory_region_escape_name memory_region_escape_name_aarch64
 #define memory_region_finalize memory_region_finalize_aarch64
 #define memory_region_find memory_region_find_aarch64
@@ -2384,6 +2385,7 @@
 #define qemu_clock_get_us qemu_clock_get_us_aarch64
 #define qemu_clock_ptr qemu_clock_ptr_aarch64
 #define qemu_clocks qemu_clocks_aarch64
+#define qemu_fdatasync qemu_fdatasync_aarch64
 #define qemu_get_cpu qemu_get_cpu_aarch64
 #define qemu_get_guest_memory_mapping qemu_get_guest_memory_mapping_aarch64
 #define qemu_get_guest_simple_memory_mapping qemu_get_guest_simple_memory_mapping_aarch64
@@ -2405,6 +2407,7 @@
 #define qemu_ram_alloc_resizeable qemu_ram_alloc_resizeable_aarch64
 #define qemu_ram_block_by_name qemu_ram_block_by_name_aarch64
 #define qemu_ram_block_from_host qemu_ram_block_from_host_aarch64
+#define qemu_ram_block_writeback qemu_ram_block_writeback_aarch64
 #define qemu_ram_foreach_block qemu_ram_foreach_block_aarch64
 #define qemu_ram_free qemu_ram_free_aarch64
 #define qemu_ram_get_idstr qemu_ram_get_idstr_aarch64
@@ -2414,6 +2417,7 @@
 #define qemu_ram_resize qemu_ram_resize_aarch64
 #define qemu_ram_setup_dump qemu_ram_setup_dump_aarch64
 #define qemu_ram_unset_idstr qemu_ram_unset_idstr_aarch64
+#define qemu_ram_writeback qemu_ram_writeback_aarch64
 #define qemu_st_helpers qemu_st_helpers_aarch64
 #define qemu_strnlen qemu_strnlen_aarch64
 #define qemu_strsep qemu_strsep_aarch64
diff --git a/qemu/aarch64eb.h b/qemu/aarch64eb.h
index 4a53ae94..56b854b8 100644
--- a/qemu/aarch64eb.h
+++ b/qemu/aarch64eb.h
@@ -2024,6 +2024,7 @@
 #define memory_region_dispatch_read memory_region_dispatch_read_aarch64eb
 #define memory_region_dispatch_read1 memory_region_dispatch_read1_aarch64eb
 #define memory_region_dispatch_write memory_region_dispatch_write_aarch64eb
+#define memory_region_do_writeback memory_region_do_writeback_aarch64eb
 #define memory_region_escape_name memory_region_escape_name_aarch64eb
 #define memory_region_finalize memory_region_finalize_aarch64eb
 #define memory_region_find memory_region_find_aarch64eb
@@ -2384,6 +2385,7 @@
 #define qemu_clock_get_us qemu_clock_get_us_aarch64eb
 #define qemu_clock_ptr qemu_clock_ptr_aarch64eb
 #define qemu_clocks qemu_clocks_aarch64eb
+#define qemu_fdatasync qemu_fdatasync_aarch64eb
 #define qemu_get_cpu qemu_get_cpu_aarch64eb
 #define qemu_get_guest_memory_mapping qemu_get_guest_memory_mapping_aarch64eb
 #define qemu_get_guest_simple_memory_mapping qemu_get_guest_simple_memory_mapping_aarch64eb
@@ -2405,6 +2407,7 @@
 #define qemu_ram_alloc_resizeable qemu_ram_alloc_resizeable_aarch64eb
 #define qemu_ram_block_by_name qemu_ram_block_by_name_aarch64eb
 #define qemu_ram_block_from_host qemu_ram_block_from_host_aarch64eb
+#define qemu_ram_block_writeback qemu_ram_block_writeback_aarch64eb
 #define qemu_ram_foreach_block qemu_ram_foreach_block_aarch64eb
 #define qemu_ram_free qemu_ram_free_aarch64eb
 #define qemu_ram_get_idstr qemu_ram_get_idstr_aarch64eb
@@ -2414,6 +2417,7 @@
 #define qemu_ram_resize qemu_ram_resize_aarch64eb
 #define qemu_ram_setup_dump qemu_ram_setup_dump_aarch64eb
 #define qemu_ram_unset_idstr qemu_ram_unset_idstr_aarch64eb
+#define qemu_ram_writeback qemu_ram_writeback_aarch64eb
 #define qemu_st_helpers qemu_st_helpers_aarch64eb
 #define qemu_strnlen qemu_strnlen_aarch64eb
 #define qemu_strsep qemu_strsep_aarch64eb
diff --git a/qemu/arm.h b/qemu/arm.h
index e86d8096..088eaf9e 100644
--- a/qemu/arm.h
+++ b/qemu/arm.h
@@ -2024,6 +2024,7 @@
 #define memory_region_dispatch_read memory_region_dispatch_read_arm
 #define memory_region_dispatch_read1 memory_region_dispatch_read1_arm
 #define memory_region_dispatch_write memory_region_dispatch_write_arm
+#define memory_region_do_writeback memory_region_do_writeback_arm
 #define memory_region_escape_name memory_region_escape_name_arm
 #define memory_region_finalize memory_region_finalize_arm
 #define memory_region_find memory_region_find_arm
@@ -2384,6 +2385,7 @@
 #define qemu_clock_get_us qemu_clock_get_us_arm
 #define qemu_clock_ptr qemu_clock_ptr_arm
 #define qemu_clocks qemu_clocks_arm
+#define qemu_fdatasync qemu_fdatasync_arm
 #define qemu_get_cpu qemu_get_cpu_arm
 #define qemu_get_guest_memory_mapping qemu_get_guest_memory_mapping_arm
 #define qemu_get_guest_simple_memory_mapping qemu_get_guest_simple_memory_mapping_arm
@@ -2405,6 +2407,7 @@
 #define qemu_ram_alloc_resizeable qemu_ram_alloc_resizeable_arm
 #define qemu_ram_block_by_name qemu_ram_block_by_name_arm
 #define qemu_ram_block_from_host qemu_ram_block_from_host_arm
+#define qemu_ram_block_writeback qemu_ram_block_writeback_arm
 #define qemu_ram_foreach_block qemu_ram_foreach_block_arm
 #define qemu_ram_free qemu_ram_free_arm
 #define qemu_ram_get_idstr qemu_ram_get_idstr_arm
@@ -2414,6 +2417,7 @@
 #define qemu_ram_resize qemu_ram_resize_arm
 #define qemu_ram_setup_dump qemu_ram_setup_dump_arm
 #define qemu_ram_unset_idstr qemu_ram_unset_idstr_arm
+#define qemu_ram_writeback qemu_ram_writeback_arm
 #define qemu_st_helpers qemu_st_helpers_arm
 #define qemu_strnlen qemu_strnlen_arm
 #define qemu_strsep qemu_strsep_arm
diff --git a/qemu/armeb.h b/qemu/armeb.h
index 532e4cad..b7e1cc07 100644
--- a/qemu/armeb.h
+++ b/qemu/armeb.h
@@ -2024,6 +2024,7 @@
 #define memory_region_dispatch_read memory_region_dispatch_read_armeb
 #define memory_region_dispatch_read1 memory_region_dispatch_read1_armeb
 #define memory_region_dispatch_write memory_region_dispatch_write_armeb
+#define memory_region_do_writeback memory_region_do_writeback_armeb
 #define memory_region_escape_name memory_region_escape_name_armeb
 #define memory_region_finalize memory_region_finalize_armeb
 #define memory_region_find memory_region_find_armeb
@@ -2384,6 +2385,7 @@
 #define qemu_clock_get_us qemu_clock_get_us_armeb
 #define qemu_clock_ptr qemu_clock_ptr_armeb
 #define qemu_clocks qemu_clocks_armeb
+#define qemu_fdatasync qemu_fdatasync_armeb
 #define qemu_get_cpu qemu_get_cpu_armeb
 #define qemu_get_guest_memory_mapping qemu_get_guest_memory_mapping_armeb
 #define qemu_get_guest_simple_memory_mapping qemu_get_guest_simple_memory_mapping_armeb
@@ -2405,6 +2407,7 @@
 #define qemu_ram_alloc_resizeable qemu_ram_alloc_resizeable_armeb
 #define qemu_ram_block_by_name qemu_ram_block_by_name_armeb
 #define qemu_ram_block_from_host qemu_ram_block_from_host_armeb
+#define qemu_ram_block_writeback qemu_ram_block_writeback_armeb
 #define qemu_ram_foreach_block qemu_ram_foreach_block_armeb
 #define qemu_ram_free qemu_ram_free_armeb
 #define qemu_ram_get_idstr qemu_ram_get_idstr_armeb
@@ -2414,6 +2417,7 @@
 #define qemu_ram_resize qemu_ram_resize_armeb
 #define qemu_ram_setup_dump qemu_ram_setup_dump_armeb
 #define qemu_ram_unset_idstr qemu_ram_unset_idstr_armeb
+#define qemu_ram_writeback qemu_ram_writeback_armeb
 #define qemu_st_helpers qemu_st_helpers_armeb
 #define qemu_strnlen qemu_strnlen_armeb
 #define qemu_strsep qemu_strsep_armeb
diff --git a/qemu/exec.c b/qemu/exec.c
index 0aced085..c1d5279b 100644
--- a/qemu/exec.c
+++ b/qemu/exec.c
@@ -1341,6 +1341,40 @@ int qemu_ram_resize(struct uc_struct *uc, RAMBlock *block, ram_addr_t newsize, E
     return 0;
 }
 
+/*
+ * Trigger sync on the given ram block for range [start, start + length]
+ * with the backing store if one is available.
+ * Otherwise no-op.
+ * @Note: this is supposed to be a synchronous op.
+ */
+void qemu_ram_writeback(struct uc_struct *uc, RAMBlock *block, ram_addr_t start, ram_addr_t length)
+{
+    void *addr = ramblock_ptr(block, start);
+
+    /* The requested range should fit in within the block range */
+    g_assert((start + length) <= block->used_length);
+
+#ifdef CONFIG_LIBPMEM
+    /* The lack of support for pmem should not block the sync */
+    if (ramblock_is_pmem(block)) {
+        pmem_persist(addr, length);
+        return;
+    }
+#endif
+    if (block->fd >= 0) {
+        /**
+         * Case there is no support for PMEM or the memory has not been
+         * specified as persistent (or is not one) - use the msync.
+         * Less optimal but still achieves the same goal
+         */
+        if (qemu_msync(uc, addr, length, block->fd)) {
+            //warn_report("%s: failed to sync memory range: start: "
+            //        RAM_ADDR_FMT " length: " RAM_ADDR_FMT,
+            //        __func__, start, length);
+        }
+    }
+}
+
 static void ram_block_add(struct uc_struct *uc, RAMBlock *new_block, Error **errp)
 {
     RAMBlock *block;
diff --git a/qemu/header_gen.py b/qemu/header_gen.py
index 08c3b4c0..60f484bd 100644
--- a/qemu/header_gen.py
+++ b/qemu/header_gen.py
@@ -2030,6 +2030,7 @@ symbols = (
     'memory_region_dispatch_read',
     'memory_region_dispatch_read1',
     'memory_region_dispatch_write',
+    'memory_region_do_writeback',
     'memory_region_escape_name',
     'memory_region_finalize',
     'memory_region_find',
@@ -2390,6 +2391,7 @@ symbols = (
     'qemu_clock_get_us',
     'qemu_clock_ptr',
     'qemu_clocks',
+    'qemu_fdatasync',
     'qemu_get_cpu',
     'qemu_get_guest_memory_mapping',
     'qemu_get_guest_simple_memory_mapping',
@@ -2411,6 +2413,7 @@ symbols = (
     'qemu_ram_alloc_resizeable',
     'qemu_ram_block_by_name',
     'qemu_ram_block_from_host',
+    'qemu_ram_block_writeback',
     'qemu_ram_foreach_block',
     'qemu_ram_free',
     'qemu_ram_get_idstr',
@@ -2420,6 +2423,7 @@ symbols = (
     'qemu_ram_resize',
     'qemu_ram_setup_dump',
     'qemu_ram_unset_idstr',
+    'qemu_ram_writeback',
     'qemu_st_helpers',
     'qemu_strnlen',
     'qemu_strsep',
diff --git a/qemu/include/exec/memory.h b/qemu/include/exec/memory.h
index 0e99eddf..459eb51d 100644
--- a/qemu/include/exec/memory.h
+++ b/qemu/include/exec/memory.h
@@ -742,6 +742,13 @@ MemoryRegion *memory_region_from_host(struct uc_struct *uc, void *ptr, ram_addr_
  */
 void *memory_region_get_ram_ptr(MemoryRegion *mr);
 
+/**
+ * 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_readonly: Turn a memory region read-only (or read-write)
  *
diff --git a/qemu/include/exec/ram_addr.h b/qemu/include/exec/ram_addr.h
index a0af6aee..44de062a 100644
--- a/qemu/include/exec/ram_addr.h
+++ b/qemu/include/exec/ram_addr.h
@@ -65,6 +65,14 @@ void qemu_ram_free(struct uc_struct *c, ram_addr_t addr);
 
 int qemu_ram_resize(struct uc_struct *c, RAMBlock *block, ram_addr_t newsize, Error **errp);
 
+void qemu_ram_writeback(struct uc_struct *uc, RAMBlock *block, ram_addr_t start, ram_addr_t length);
+
+/* Clear whole block of mem */
+static inline void qemu_ram_block_writeback(struct uc_struct *uc, RAMBlock *block)
+{
+    qemu_ram_writeback(uc, block, 0, block->used_length);
+}
+
 #define DIRTY_CLIENTS_ALL     ((1 << DIRTY_MEMORY_NUM) - 1)
 #define DIRTY_CLIENTS_NOCODE  (DIRTY_CLIENTS_ALL & ~(1 << DIRTY_MEMORY_CODE))
 
diff --git a/qemu/include/qemu/cutils.h b/qemu/include/qemu/cutils.h
index 0a7201fd..ffb849fc 100644
--- a/qemu/include/qemu/cutils.h
+++ b/qemu/include/qemu/cutils.h
@@ -2,6 +2,7 @@
 #define QEMU_CUTILS_H
 
 #include "qemu/fprintf-fn.h"
+#include "uc_priv.h"
 
 /**
  * pstrcpy:
@@ -122,6 +123,10 @@ int qemu_strnlen(const char *s, int max_len);
  * Returns: the pointer originally in @input.
  */
 char *qemu_strsep(char **input, const char *delim);
+
+int qemu_fdatasync(int fd);
+int qemu_msync(struct uc_struct *uc, void *addr, size_t length, int fd);
+
 int qemu_strtoi(const char *nptr, const char **endptr, int base,
                 int *result);
 int qemu_strtoui(const char *nptr, const char **endptr, int base,
diff --git a/qemu/m68k.h b/qemu/m68k.h
index 064601ee..27dc87f4 100644
--- a/qemu/m68k.h
+++ b/qemu/m68k.h
@@ -2024,6 +2024,7 @@
 #define memory_region_dispatch_read memory_region_dispatch_read_m68k
 #define memory_region_dispatch_read1 memory_region_dispatch_read1_m68k
 #define memory_region_dispatch_write memory_region_dispatch_write_m68k
+#define memory_region_do_writeback memory_region_do_writeback_m68k
 #define memory_region_escape_name memory_region_escape_name_m68k
 #define memory_region_finalize memory_region_finalize_m68k
 #define memory_region_find memory_region_find_m68k
@@ -2384,6 +2385,7 @@
 #define qemu_clock_get_us qemu_clock_get_us_m68k
 #define qemu_clock_ptr qemu_clock_ptr_m68k
 #define qemu_clocks qemu_clocks_m68k
+#define qemu_fdatasync qemu_fdatasync_m68k
 #define qemu_get_cpu qemu_get_cpu_m68k
 #define qemu_get_guest_memory_mapping qemu_get_guest_memory_mapping_m68k
 #define qemu_get_guest_simple_memory_mapping qemu_get_guest_simple_memory_mapping_m68k
@@ -2405,6 +2407,7 @@
 #define qemu_ram_alloc_resizeable qemu_ram_alloc_resizeable_m68k
 #define qemu_ram_block_by_name qemu_ram_block_by_name_m68k
 #define qemu_ram_block_from_host qemu_ram_block_from_host_m68k
+#define qemu_ram_block_writeback qemu_ram_block_writeback_m68k
 #define qemu_ram_foreach_block qemu_ram_foreach_block_m68k
 #define qemu_ram_free qemu_ram_free_m68k
 #define qemu_ram_get_idstr qemu_ram_get_idstr_m68k
@@ -2414,6 +2417,7 @@
 #define qemu_ram_resize qemu_ram_resize_m68k
 #define qemu_ram_setup_dump qemu_ram_setup_dump_m68k
 #define qemu_ram_unset_idstr qemu_ram_unset_idstr_m68k
+#define qemu_ram_writeback qemu_ram_writeback_m68k
 #define qemu_st_helpers qemu_st_helpers_m68k
 #define qemu_strnlen qemu_strnlen_m68k
 #define qemu_strsep qemu_strsep_m68k
diff --git a/qemu/memory.c b/qemu/memory.c
index c302bc88..24ac79bd 100644
--- a/qemu/memory.c
+++ b/qemu/memory.c
@@ -1617,6 +1617,17 @@ int memory_region_get_fd(MemoryRegion *mr)
     return fd;
 }
 
+void memory_region_do_writeback(MemoryRegion *mr, hwaddr addr, hwaddr size)
+{
+    /*
+     * Might be extended case needed to cover
+     * different types of memory regions
+     */
+    if (mr->ram_block && mr->dirty_log_mask) {
+        qemu_ram_writeback(mr->uc, mr->ram_block, addr, size);
+    }
+}
+
 void *memory_region_get_ram_ptr(MemoryRegion *mr)
 {
     void *ptr;
diff --git a/qemu/mips.h b/qemu/mips.h
index c39bd536..435f0c83 100644
--- a/qemu/mips.h
+++ b/qemu/mips.h
@@ -2024,6 +2024,7 @@
 #define memory_region_dispatch_read memory_region_dispatch_read_mips
 #define memory_region_dispatch_read1 memory_region_dispatch_read1_mips
 #define memory_region_dispatch_write memory_region_dispatch_write_mips
+#define memory_region_do_writeback memory_region_do_writeback_mips
 #define memory_region_escape_name memory_region_escape_name_mips
 #define memory_region_finalize memory_region_finalize_mips
 #define memory_region_find memory_region_find_mips
@@ -2384,6 +2385,7 @@
 #define qemu_clock_get_us qemu_clock_get_us_mips
 #define qemu_clock_ptr qemu_clock_ptr_mips
 #define qemu_clocks qemu_clocks_mips
+#define qemu_fdatasync qemu_fdatasync_mips
 #define qemu_get_cpu qemu_get_cpu_mips
 #define qemu_get_guest_memory_mapping qemu_get_guest_memory_mapping_mips
 #define qemu_get_guest_simple_memory_mapping qemu_get_guest_simple_memory_mapping_mips
@@ -2405,6 +2407,7 @@
 #define qemu_ram_alloc_resizeable qemu_ram_alloc_resizeable_mips
 #define qemu_ram_block_by_name qemu_ram_block_by_name_mips
 #define qemu_ram_block_from_host qemu_ram_block_from_host_mips
+#define qemu_ram_block_writeback qemu_ram_block_writeback_mips
 #define qemu_ram_foreach_block qemu_ram_foreach_block_mips
 #define qemu_ram_free qemu_ram_free_mips
 #define qemu_ram_get_idstr qemu_ram_get_idstr_mips
@@ -2414,6 +2417,7 @@
 #define qemu_ram_resize qemu_ram_resize_mips
 #define qemu_ram_setup_dump qemu_ram_setup_dump_mips
 #define qemu_ram_unset_idstr qemu_ram_unset_idstr_mips
+#define qemu_ram_writeback qemu_ram_writeback_mips
 #define qemu_st_helpers qemu_st_helpers_mips
 #define qemu_strnlen qemu_strnlen_mips
 #define qemu_strsep qemu_strsep_mips
diff --git a/qemu/mips64.h b/qemu/mips64.h
index b8f1bf87..282228f1 100644
--- a/qemu/mips64.h
+++ b/qemu/mips64.h
@@ -2024,6 +2024,7 @@
 #define memory_region_dispatch_read memory_region_dispatch_read_mips64
 #define memory_region_dispatch_read1 memory_region_dispatch_read1_mips64
 #define memory_region_dispatch_write memory_region_dispatch_write_mips64
+#define memory_region_do_writeback memory_region_do_writeback_mips64
 #define memory_region_escape_name memory_region_escape_name_mips64
 #define memory_region_finalize memory_region_finalize_mips64
 #define memory_region_find memory_region_find_mips64
@@ -2384,6 +2385,7 @@
 #define qemu_clock_get_us qemu_clock_get_us_mips64
 #define qemu_clock_ptr qemu_clock_ptr_mips64
 #define qemu_clocks qemu_clocks_mips64
+#define qemu_fdatasync qemu_fdatasync_mips64
 #define qemu_get_cpu qemu_get_cpu_mips64
 #define qemu_get_guest_memory_mapping qemu_get_guest_memory_mapping_mips64
 #define qemu_get_guest_simple_memory_mapping qemu_get_guest_simple_memory_mapping_mips64
@@ -2405,6 +2407,7 @@
 #define qemu_ram_alloc_resizeable qemu_ram_alloc_resizeable_mips64
 #define qemu_ram_block_by_name qemu_ram_block_by_name_mips64
 #define qemu_ram_block_from_host qemu_ram_block_from_host_mips64
+#define qemu_ram_block_writeback qemu_ram_block_writeback_mips64
 #define qemu_ram_foreach_block qemu_ram_foreach_block_mips64
 #define qemu_ram_free qemu_ram_free_mips64
 #define qemu_ram_get_idstr qemu_ram_get_idstr_mips64
@@ -2414,6 +2417,7 @@
 #define qemu_ram_resize qemu_ram_resize_mips64
 #define qemu_ram_setup_dump qemu_ram_setup_dump_mips64
 #define qemu_ram_unset_idstr qemu_ram_unset_idstr_mips64
+#define qemu_ram_writeback qemu_ram_writeback_mips64
 #define qemu_st_helpers qemu_st_helpers_mips64
 #define qemu_strnlen qemu_strnlen_mips64
 #define qemu_strsep qemu_strsep_mips64
diff --git a/qemu/mips64el.h b/qemu/mips64el.h
index 4bc359b9..f0f08b3e 100644
--- a/qemu/mips64el.h
+++ b/qemu/mips64el.h
@@ -2024,6 +2024,7 @@
 #define memory_region_dispatch_read memory_region_dispatch_read_mips64el
 #define memory_region_dispatch_read1 memory_region_dispatch_read1_mips64el
 #define memory_region_dispatch_write memory_region_dispatch_write_mips64el
+#define memory_region_do_writeback memory_region_do_writeback_mips64el
 #define memory_region_escape_name memory_region_escape_name_mips64el
 #define memory_region_finalize memory_region_finalize_mips64el
 #define memory_region_find memory_region_find_mips64el
@@ -2384,6 +2385,7 @@
 #define qemu_clock_get_us qemu_clock_get_us_mips64el
 #define qemu_clock_ptr qemu_clock_ptr_mips64el
 #define qemu_clocks qemu_clocks_mips64el
+#define qemu_fdatasync qemu_fdatasync_mips64el
 #define qemu_get_cpu qemu_get_cpu_mips64el
 #define qemu_get_guest_memory_mapping qemu_get_guest_memory_mapping_mips64el
 #define qemu_get_guest_simple_memory_mapping qemu_get_guest_simple_memory_mapping_mips64el
@@ -2405,6 +2407,7 @@
 #define qemu_ram_alloc_resizeable qemu_ram_alloc_resizeable_mips64el
 #define qemu_ram_block_by_name qemu_ram_block_by_name_mips64el
 #define qemu_ram_block_from_host qemu_ram_block_from_host_mips64el
+#define qemu_ram_block_writeback qemu_ram_block_writeback_mips64el
 #define qemu_ram_foreach_block qemu_ram_foreach_block_mips64el
 #define qemu_ram_free qemu_ram_free_mips64el
 #define qemu_ram_get_idstr qemu_ram_get_idstr_mips64el
@@ -2414,6 +2417,7 @@
 #define qemu_ram_resize qemu_ram_resize_mips64el
 #define qemu_ram_setup_dump qemu_ram_setup_dump_mips64el
 #define qemu_ram_unset_idstr qemu_ram_unset_idstr_mips64el
+#define qemu_ram_writeback qemu_ram_writeback_mips64el
 #define qemu_st_helpers qemu_st_helpers_mips64el
 #define qemu_strnlen qemu_strnlen_mips64el
 #define qemu_strsep qemu_strsep_mips64el
diff --git a/qemu/mipsel.h b/qemu/mipsel.h
index b6bdbc28..b69aec56 100644
--- a/qemu/mipsel.h
+++ b/qemu/mipsel.h
@@ -2024,6 +2024,7 @@
 #define memory_region_dispatch_read memory_region_dispatch_read_mipsel
 #define memory_region_dispatch_read1 memory_region_dispatch_read1_mipsel
 #define memory_region_dispatch_write memory_region_dispatch_write_mipsel
+#define memory_region_do_writeback memory_region_do_writeback_mipsel
 #define memory_region_escape_name memory_region_escape_name_mipsel
 #define memory_region_finalize memory_region_finalize_mipsel
 #define memory_region_find memory_region_find_mipsel
@@ -2384,6 +2385,7 @@
 #define qemu_clock_get_us qemu_clock_get_us_mipsel
 #define qemu_clock_ptr qemu_clock_ptr_mipsel
 #define qemu_clocks qemu_clocks_mipsel
+#define qemu_fdatasync qemu_fdatasync_mipsel
 #define qemu_get_cpu qemu_get_cpu_mipsel
 #define qemu_get_guest_memory_mapping qemu_get_guest_memory_mapping_mipsel
 #define qemu_get_guest_simple_memory_mapping qemu_get_guest_simple_memory_mapping_mipsel
@@ -2405,6 +2407,7 @@
 #define qemu_ram_alloc_resizeable qemu_ram_alloc_resizeable_mipsel
 #define qemu_ram_block_by_name qemu_ram_block_by_name_mipsel
 #define qemu_ram_block_from_host qemu_ram_block_from_host_mipsel
+#define qemu_ram_block_writeback qemu_ram_block_writeback_mipsel
 #define qemu_ram_foreach_block qemu_ram_foreach_block_mipsel
 #define qemu_ram_free qemu_ram_free_mipsel
 #define qemu_ram_get_idstr qemu_ram_get_idstr_mipsel
@@ -2414,6 +2417,7 @@
 #define qemu_ram_resize qemu_ram_resize_mipsel
 #define qemu_ram_setup_dump qemu_ram_setup_dump_mipsel
 #define qemu_ram_unset_idstr qemu_ram_unset_idstr_mipsel
+#define qemu_ram_writeback qemu_ram_writeback_mipsel
 #define qemu_st_helpers qemu_st_helpers_mipsel
 #define qemu_strnlen qemu_strnlen_mipsel
 #define qemu_strsep qemu_strsep_mipsel
diff --git a/qemu/powerpc.h b/qemu/powerpc.h
index 75fd4d97..ffde9000 100644
--- a/qemu/powerpc.h
+++ b/qemu/powerpc.h
@@ -2024,6 +2024,7 @@
 #define memory_region_dispatch_read memory_region_dispatch_read_powerpc
 #define memory_region_dispatch_read1 memory_region_dispatch_read1_powerpc
 #define memory_region_dispatch_write memory_region_dispatch_write_powerpc
+#define memory_region_do_writeback memory_region_do_writeback_powerpc
 #define memory_region_escape_name memory_region_escape_name_powerpc
 #define memory_region_finalize memory_region_finalize_powerpc
 #define memory_region_find memory_region_find_powerpc
@@ -2384,6 +2385,7 @@
 #define qemu_clock_get_us qemu_clock_get_us_powerpc
 #define qemu_clock_ptr qemu_clock_ptr_powerpc
 #define qemu_clocks qemu_clocks_powerpc
+#define qemu_fdatasync qemu_fdatasync_powerpc
 #define qemu_get_cpu qemu_get_cpu_powerpc
 #define qemu_get_guest_memory_mapping qemu_get_guest_memory_mapping_powerpc
 #define qemu_get_guest_simple_memory_mapping qemu_get_guest_simple_memory_mapping_powerpc
@@ -2405,6 +2407,7 @@
 #define qemu_ram_alloc_resizeable qemu_ram_alloc_resizeable_powerpc
 #define qemu_ram_block_by_name qemu_ram_block_by_name_powerpc
 #define qemu_ram_block_from_host qemu_ram_block_from_host_powerpc
+#define qemu_ram_block_writeback qemu_ram_block_writeback_powerpc
 #define qemu_ram_foreach_block qemu_ram_foreach_block_powerpc
 #define qemu_ram_free qemu_ram_free_powerpc
 #define qemu_ram_get_idstr qemu_ram_get_idstr_powerpc
@@ -2414,6 +2417,7 @@
 #define qemu_ram_resize qemu_ram_resize_powerpc
 #define qemu_ram_setup_dump qemu_ram_setup_dump_powerpc
 #define qemu_ram_unset_idstr qemu_ram_unset_idstr_powerpc
+#define qemu_ram_writeback qemu_ram_writeback_powerpc
 #define qemu_st_helpers qemu_st_helpers_powerpc
 #define qemu_strnlen qemu_strnlen_powerpc
 #define qemu_strsep qemu_strsep_powerpc
diff --git a/qemu/riscv32.h b/qemu/riscv32.h
index 8ec16e59..0fa3fd41 100644
--- a/qemu/riscv32.h
+++ b/qemu/riscv32.h
@@ -2024,6 +2024,7 @@
 #define memory_region_dispatch_read memory_region_dispatch_read_riscv32
 #define memory_region_dispatch_read1 memory_region_dispatch_read1_riscv32
 #define memory_region_dispatch_write memory_region_dispatch_write_riscv32
+#define memory_region_do_writeback memory_region_do_writeback_riscv32
 #define memory_region_escape_name memory_region_escape_name_riscv32
 #define memory_region_finalize memory_region_finalize_riscv32
 #define memory_region_find memory_region_find_riscv32
@@ -2384,6 +2385,7 @@
 #define qemu_clock_get_us qemu_clock_get_us_riscv32
 #define qemu_clock_ptr qemu_clock_ptr_riscv32
 #define qemu_clocks qemu_clocks_riscv32
+#define qemu_fdatasync qemu_fdatasync_riscv32
 #define qemu_get_cpu qemu_get_cpu_riscv32
 #define qemu_get_guest_memory_mapping qemu_get_guest_memory_mapping_riscv32
 #define qemu_get_guest_simple_memory_mapping qemu_get_guest_simple_memory_mapping_riscv32
@@ -2405,6 +2407,7 @@
 #define qemu_ram_alloc_resizeable qemu_ram_alloc_resizeable_riscv32
 #define qemu_ram_block_by_name qemu_ram_block_by_name_riscv32
 #define qemu_ram_block_from_host qemu_ram_block_from_host_riscv32
+#define qemu_ram_block_writeback qemu_ram_block_writeback_riscv32
 #define qemu_ram_foreach_block qemu_ram_foreach_block_riscv32
 #define qemu_ram_free qemu_ram_free_riscv32
 #define qemu_ram_get_idstr qemu_ram_get_idstr_riscv32
@@ -2414,6 +2417,7 @@
 #define qemu_ram_resize qemu_ram_resize_riscv32
 #define qemu_ram_setup_dump qemu_ram_setup_dump_riscv32
 #define qemu_ram_unset_idstr qemu_ram_unset_idstr_riscv32
+#define qemu_ram_writeback qemu_ram_writeback_riscv32
 #define qemu_st_helpers qemu_st_helpers_riscv32
 #define qemu_strnlen qemu_strnlen_riscv32
 #define qemu_strsep qemu_strsep_riscv32
diff --git a/qemu/riscv64.h b/qemu/riscv64.h
index 1428708d..45377cfb 100644
--- a/qemu/riscv64.h
+++ b/qemu/riscv64.h
@@ -2024,6 +2024,7 @@
 #define memory_region_dispatch_read memory_region_dispatch_read_riscv64
 #define memory_region_dispatch_read1 memory_region_dispatch_read1_riscv64
 #define memory_region_dispatch_write memory_region_dispatch_write_riscv64
+#define memory_region_do_writeback memory_region_do_writeback_riscv64
 #define memory_region_escape_name memory_region_escape_name_riscv64
 #define memory_region_finalize memory_region_finalize_riscv64
 #define memory_region_find memory_region_find_riscv64
@@ -2384,6 +2385,7 @@
 #define qemu_clock_get_us qemu_clock_get_us_riscv64
 #define qemu_clock_ptr qemu_clock_ptr_riscv64
 #define qemu_clocks qemu_clocks_riscv64
+#define qemu_fdatasync qemu_fdatasync_riscv64
 #define qemu_get_cpu qemu_get_cpu_riscv64
 #define qemu_get_guest_memory_mapping qemu_get_guest_memory_mapping_riscv64
 #define qemu_get_guest_simple_memory_mapping qemu_get_guest_simple_memory_mapping_riscv64
@@ -2405,6 +2407,7 @@
 #define qemu_ram_alloc_resizeable qemu_ram_alloc_resizeable_riscv64
 #define qemu_ram_block_by_name qemu_ram_block_by_name_riscv64
 #define qemu_ram_block_from_host qemu_ram_block_from_host_riscv64
+#define qemu_ram_block_writeback qemu_ram_block_writeback_riscv64
 #define qemu_ram_foreach_block qemu_ram_foreach_block_riscv64
 #define qemu_ram_free qemu_ram_free_riscv64
 #define qemu_ram_get_idstr qemu_ram_get_idstr_riscv64
@@ -2414,6 +2417,7 @@
 #define qemu_ram_resize qemu_ram_resize_riscv64
 #define qemu_ram_setup_dump qemu_ram_setup_dump_riscv64
 #define qemu_ram_unset_idstr qemu_ram_unset_idstr_riscv64
+#define qemu_ram_writeback qemu_ram_writeback_riscv64
 #define qemu_st_helpers qemu_st_helpers_riscv64
 #define qemu_strnlen qemu_strnlen_riscv64
 #define qemu_strsep qemu_strsep_riscv64
diff --git a/qemu/sparc.h b/qemu/sparc.h
index b9281093..3d210f1e 100644
--- a/qemu/sparc.h
+++ b/qemu/sparc.h
@@ -2024,6 +2024,7 @@
 #define memory_region_dispatch_read memory_region_dispatch_read_sparc
 #define memory_region_dispatch_read1 memory_region_dispatch_read1_sparc
 #define memory_region_dispatch_write memory_region_dispatch_write_sparc
+#define memory_region_do_writeback memory_region_do_writeback_sparc
 #define memory_region_escape_name memory_region_escape_name_sparc
 #define memory_region_finalize memory_region_finalize_sparc
 #define memory_region_find memory_region_find_sparc
@@ -2384,6 +2385,7 @@
 #define qemu_clock_get_us qemu_clock_get_us_sparc
 #define qemu_clock_ptr qemu_clock_ptr_sparc
 #define qemu_clocks qemu_clocks_sparc
+#define qemu_fdatasync qemu_fdatasync_sparc
 #define qemu_get_cpu qemu_get_cpu_sparc
 #define qemu_get_guest_memory_mapping qemu_get_guest_memory_mapping_sparc
 #define qemu_get_guest_simple_memory_mapping qemu_get_guest_simple_memory_mapping_sparc
@@ -2405,6 +2407,7 @@
 #define qemu_ram_alloc_resizeable qemu_ram_alloc_resizeable_sparc
 #define qemu_ram_block_by_name qemu_ram_block_by_name_sparc
 #define qemu_ram_block_from_host qemu_ram_block_from_host_sparc
+#define qemu_ram_block_writeback qemu_ram_block_writeback_sparc
 #define qemu_ram_foreach_block qemu_ram_foreach_block_sparc
 #define qemu_ram_free qemu_ram_free_sparc
 #define qemu_ram_get_idstr qemu_ram_get_idstr_sparc
@@ -2414,6 +2417,7 @@
 #define qemu_ram_resize qemu_ram_resize_sparc
 #define qemu_ram_setup_dump qemu_ram_setup_dump_sparc
 #define qemu_ram_unset_idstr qemu_ram_unset_idstr_sparc
+#define qemu_ram_writeback qemu_ram_writeback_sparc
 #define qemu_st_helpers qemu_st_helpers_sparc
 #define qemu_strnlen qemu_strnlen_sparc
 #define qemu_strsep qemu_strsep_sparc
diff --git a/qemu/sparc64.h b/qemu/sparc64.h
index 8497c938..ea54d204 100644
--- a/qemu/sparc64.h
+++ b/qemu/sparc64.h
@@ -2024,6 +2024,7 @@
 #define memory_region_dispatch_read memory_region_dispatch_read_sparc64
 #define memory_region_dispatch_read1 memory_region_dispatch_read1_sparc64
 #define memory_region_dispatch_write memory_region_dispatch_write_sparc64
+#define memory_region_do_writeback memory_region_do_writeback_sparc64
 #define memory_region_escape_name memory_region_escape_name_sparc64
 #define memory_region_finalize memory_region_finalize_sparc64
 #define memory_region_find memory_region_find_sparc64
@@ -2384,6 +2385,7 @@
 #define qemu_clock_get_us qemu_clock_get_us_sparc64
 #define qemu_clock_ptr qemu_clock_ptr_sparc64
 #define qemu_clocks qemu_clocks_sparc64
+#define qemu_fdatasync qemu_fdatasync_sparc64
 #define qemu_get_cpu qemu_get_cpu_sparc64
 #define qemu_get_guest_memory_mapping qemu_get_guest_memory_mapping_sparc64
 #define qemu_get_guest_simple_memory_mapping qemu_get_guest_simple_memory_mapping_sparc64
@@ -2405,6 +2407,7 @@
 #define qemu_ram_alloc_resizeable qemu_ram_alloc_resizeable_sparc64
 #define qemu_ram_block_by_name qemu_ram_block_by_name_sparc64
 #define qemu_ram_block_from_host qemu_ram_block_from_host_sparc64
+#define qemu_ram_block_writeback qemu_ram_block_writeback_sparc64
 #define qemu_ram_foreach_block qemu_ram_foreach_block_sparc64
 #define qemu_ram_free qemu_ram_free_sparc64
 #define qemu_ram_get_idstr qemu_ram_get_idstr_sparc64
@@ -2414,6 +2417,7 @@
 #define qemu_ram_resize qemu_ram_resize_sparc64
 #define qemu_ram_setup_dump qemu_ram_setup_dump_sparc64
 #define qemu_ram_unset_idstr qemu_ram_unset_idstr_sparc64
+#define qemu_ram_writeback qemu_ram_writeback_sparc64
 #define qemu_st_helpers qemu_st_helpers_sparc64
 #define qemu_strnlen qemu_strnlen_sparc64
 #define qemu_strsep qemu_strsep_sparc64
diff --git a/qemu/util/cutils.c b/qemu/util/cutils.c
index 199ad3b1..6e6845e5 100644
--- a/qemu/util/cutils.c
+++ b/qemu/util/cutils.c
@@ -26,6 +26,9 @@
 #include "qemu/host-utils.h"
 #include "qemu/cutils.h"
 #include <math.h>
+#include <sys/mman.h>
+
+#include "uc_priv.h"
 
 void strpadcpy(char *buf, int buf_size, const char *str, char pad)
 {
@@ -554,3 +557,57 @@ int qemu_strtod_finite(const char *nptr, const char **endptr, double *result)
     }
     return ret;
 }
+
+/*
+ * Make sure data goes on disk, but if possible do not bother to
+ * write out the inode just for timestamp updates.
+ *
+ * Unfortunately even in 2009 many operating systems do not support
+ * fdatasync and have to fall back to fsync.
+ */
+int qemu_fdatasync(int fd)
+{
+#ifdef CONFIG_FDATASYNC
+    return fdatasync(fd);
+#else
+    return fsync(fd);
+#endif
+}
+
+/**
+ * Sync changes made to the memory mapped file back to the backing
+ * storage. For POSIX compliant systems this will fallback
+ * to regular msync call. Otherwise it will trigger whole file sync
+ * (including the metadata case there is no support to skip that otherwise)
+ *
+ * @addr   - start of the memory area to be synced
+ * @length - length of the are to be synced
+ * @fd     - file descriptor for the file to be synced
+ *           (mandatory only for POSIX non-compliant systems)
+ */
+int qemu_msync(struct uc_struct *uc, void *addr, size_t length, int fd)
+{
+#ifdef CONFIG_POSIX
+    size_t align_mask = ~(uc->qemu_real_host_page_size - 1);
+
+    /**
+     * There are no strict reqs as per the length of mapping
+     * to be synced. Still the length needs to follow the address
+     * alignment changes. Additionally - round the size to the multiple
+     * of PAGE_SIZE
+     */
+    length += ((uintptr_t)addr & (uc->qemu_real_host_page_size - 1));
+    length = (length + ~align_mask) & align_mask;
+
+    addr = (void *)((uintptr_t)addr & align_mask);
+
+    return msync(addr, length, MS_SYNC);
+#else /* CONFIG_POSIX */
+    /**
+     * Perform the sync based on the file descriptor
+     * The sync range will most probably be wider than the one
+     * requested - but it will still get the job done
+     */
+    return qemu_fdatasync(fd);
+#endif /* CONFIG_POSIX */
+}
diff --git a/qemu/x86_64.h b/qemu/x86_64.h
index 2898138b..d654ff56 100644
--- a/qemu/x86_64.h
+++ b/qemu/x86_64.h
@@ -2024,6 +2024,7 @@
 #define memory_region_dispatch_read memory_region_dispatch_read_x86_64
 #define memory_region_dispatch_read1 memory_region_dispatch_read1_x86_64
 #define memory_region_dispatch_write memory_region_dispatch_write_x86_64
+#define memory_region_do_writeback memory_region_do_writeback_x86_64
 #define memory_region_escape_name memory_region_escape_name_x86_64
 #define memory_region_finalize memory_region_finalize_x86_64
 #define memory_region_find memory_region_find_x86_64
@@ -2384,6 +2385,7 @@
 #define qemu_clock_get_us qemu_clock_get_us_x86_64
 #define qemu_clock_ptr qemu_clock_ptr_x86_64
 #define qemu_clocks qemu_clocks_x86_64
+#define qemu_fdatasync qemu_fdatasync_x86_64
 #define qemu_get_cpu qemu_get_cpu_x86_64
 #define qemu_get_guest_memory_mapping qemu_get_guest_memory_mapping_x86_64
 #define qemu_get_guest_simple_memory_mapping qemu_get_guest_simple_memory_mapping_x86_64
@@ -2405,6 +2407,7 @@
 #define qemu_ram_alloc_resizeable qemu_ram_alloc_resizeable_x86_64
 #define qemu_ram_block_by_name qemu_ram_block_by_name_x86_64
 #define qemu_ram_block_from_host qemu_ram_block_from_host_x86_64
+#define qemu_ram_block_writeback qemu_ram_block_writeback_x86_64
 #define qemu_ram_foreach_block qemu_ram_foreach_block_x86_64
 #define qemu_ram_free qemu_ram_free_x86_64
 #define qemu_ram_get_idstr qemu_ram_get_idstr_x86_64
@@ -2414,6 +2417,7 @@
 #define qemu_ram_resize qemu_ram_resize_x86_64
 #define qemu_ram_setup_dump qemu_ram_setup_dump_x86_64
 #define qemu_ram_unset_idstr qemu_ram_unset_idstr_x86_64
+#define qemu_ram_writeback qemu_ram_writeback_x86_64
 #define qemu_st_helpers qemu_st_helpers_x86_64
 #define qemu_strnlen qemu_strnlen_x86_64
 #define qemu_strsep qemu_strsep_x86_64