diff --git a/include/accel/tcg/cpu-ops.h b/include/accel/tcg/cpu-ops.h
index f60e5303f21..5fd299cefb6 100644
--- a/include/accel/tcg/cpu-ops.h
+++ b/include/accel/tcg/cpu-ops.h
@@ -16,8 +16,16 @@
 #include "exec/memop.h"
 #include "exec/mmu-access-type.h"
 #include "exec/vaddr.h"
+#include "tcg/tcg-mo.h"
 
 struct TCGCPUOps {
+
+    /**
+     * @guest_default_memory_order: default barrier that is required
+     *                              for the guest memory ordering.
+     */
+    TCGBar guest_default_memory_order;
+
     /**
      * @initialize: Initialize TCG state
      *
diff --git a/target/alpha/cpu.c b/target/alpha/cpu.c
index 584c2aa76bd..00905d48621 100644
--- a/target/alpha/cpu.c
+++ b/target/alpha/cpu.c
@@ -239,6 +239,8 @@ static const TCGCPUOps alpha_tcg_ops = {
     .synchronize_from_tb = alpha_cpu_synchronize_from_tb,
     .restore_state_to_opc = alpha_restore_state_to_opc,
 
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
+
 #ifdef CONFIG_USER_ONLY
     .record_sigsegv = alpha_cpu_record_sigsegv,
     .record_sigbus = alpha_cpu_record_sigbus,
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 01786ac7879..9e858ae8c77 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -2675,6 +2675,8 @@ static const TCGCPUOps arm_tcg_ops = {
     .debug_excp_handler = arm_debug_excp_handler,
     .restore_state_to_opc = arm_restore_state_to_opc,
 
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
+
 #ifdef CONFIG_USER_ONLY
     .record_sigsegv = arm_cpu_record_sigsegv,
     .record_sigbus = arm_cpu_record_sigbus,
diff --git a/target/arm/tcg/cpu-v7m.c b/target/arm/tcg/cpu-v7m.c
index c4dd3092726..6f714324ffd 100644
--- a/target/arm/tcg/cpu-v7m.c
+++ b/target/arm/tcg/cpu-v7m.c
@@ -238,6 +238,8 @@ static const TCGCPUOps arm_v7m_tcg_ops = {
     .debug_excp_handler = arm_debug_excp_handler,
     .restore_state_to_opc = arm_restore_state_to_opc,
 
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
+
 #ifdef CONFIG_USER_ONLY
     .record_sigsegv = arm_cpu_record_sigsegv,
     .record_sigbus = arm_cpu_record_sigbus,
diff --git a/target/avr/cpu.c b/target/avr/cpu.c
index 834c7082aa7..330e50f74e7 100644
--- a/target/avr/cpu.c
+++ b/target/avr/cpu.c
@@ -216,6 +216,7 @@ static const TCGCPUOps avr_tcg_ops = {
     .cpu_exec_halt = avr_cpu_has_work,
     .tlb_fill = avr_cpu_tlb_fill,
     .do_interrupt = avr_cpu_do_interrupt,
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
 };
 
 static void avr_cpu_class_init(ObjectClass *oc, void *data)
diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c
index 766b6786511..669f7440f52 100644
--- a/target/hexagon/cpu.c
+++ b/target/hexagon/cpu.c
@@ -324,6 +324,7 @@ static const TCGCPUOps hexagon_tcg_ops = {
     .translate_code = hexagon_translate_code,
     .synchronize_from_tb = hexagon_cpu_synchronize_from_tb,
     .restore_state_to_opc = hexagon_restore_state_to_opc,
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
 };
 
 static void hexagon_cpu_class_init(ObjectClass *c, void *data)
diff --git a/target/hppa/cpu.c b/target/hppa/cpu.c
index 2a85495d02f..15cbcd2d957 100644
--- a/target/hppa/cpu.c
+++ b/target/hppa/cpu.c
@@ -257,6 +257,8 @@ static const TCGCPUOps hppa_tcg_ops = {
     .synchronize_from_tb = hppa_cpu_synchronize_from_tb,
     .restore_state_to_opc = hppa_restore_state_to_opc,
 
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
+
 #ifndef CONFIG_USER_ONLY
     .tlb_fill_align = hppa_cpu_tlb_fill_align,
     .cpu_exec_interrupt = hppa_cpu_exec_interrupt,
diff --git a/target/i386/tcg/tcg-cpu.c b/target/i386/tcg/tcg-cpu.c
index b8aff825eec..de2fe8e04f4 100644
--- a/target/i386/tcg/tcg-cpu.c
+++ b/target/i386/tcg/tcg-cpu.c
@@ -128,6 +128,8 @@ static const TCGCPUOps x86_tcg_ops = {
     .debug_check_breakpoint = x86_debug_check_breakpoint,
     .need_replay_interrupt = x86_need_replay_interrupt,
 #endif /* !CONFIG_USER_ONLY */
+
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
 };
 
 static void x86_tcg_cpu_init_ops(AccelCPUClass *accel_cpu, CPUClass *cc)
diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c
index ea1665e2705..5b9dd5048d4 100644
--- a/target/loongarch/cpu.c
+++ b/target/loongarch/cpu.c
@@ -869,6 +869,8 @@ static const TCGCPUOps loongarch_tcg_ops = {
     .synchronize_from_tb = loongarch_cpu_synchronize_from_tb,
     .restore_state_to_opc = loongarch_restore_state_to_opc,
 
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
+
 #ifndef CONFIG_USER_ONLY
     .tlb_fill = loongarch_cpu_tlb_fill,
     .cpu_exec_interrupt = loongarch_cpu_exec_interrupt,
diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c
index 0065e1c1ca5..dc742ddc2cb 100644
--- a/target/m68k/cpu.c
+++ b/target/m68k/cpu.c
@@ -593,6 +593,8 @@ static const TCGCPUOps m68k_tcg_ops = {
     .translate_code = m68k_translate_code,
     .restore_state_to_opc = m68k_restore_state_to_opc,
 
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
+
 #ifndef CONFIG_USER_ONLY
     .tlb_fill = m68k_cpu_tlb_fill,
     .cpu_exec_interrupt = m68k_cpu_exec_interrupt,
diff --git a/target/microblaze/cpu.c b/target/microblaze/cpu.c
index f3bebea856e..32f9e32502c 100644
--- a/target/microblaze/cpu.c
+++ b/target/microblaze/cpu.c
@@ -432,6 +432,8 @@ static const TCGCPUOps mb_tcg_ops = {
     .synchronize_from_tb = mb_cpu_synchronize_from_tb,
     .restore_state_to_opc = mb_restore_state_to_opc,
 
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
+
 #ifndef CONFIG_USER_ONLY
     .tlb_fill = mb_cpu_tlb_fill,
     .cpu_exec_interrupt = mb_cpu_exec_interrupt,
diff --git a/target/mips/cpu.c b/target/mips/cpu.c
index b207106dd79..207b7d3c8db 100644
--- a/target/mips/cpu.c
+++ b/target/mips/cpu.c
@@ -554,6 +554,8 @@ static const TCGCPUOps mips_tcg_ops = {
     .synchronize_from_tb = mips_cpu_synchronize_from_tb,
     .restore_state_to_opc = mips_restore_state_to_opc,
 
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
+
 #if !defined(CONFIG_USER_ONLY)
     .tlb_fill = mips_cpu_tlb_fill,
     .cpu_exec_interrupt = mips_cpu_exec_interrupt,
diff --git a/target/openrisc/cpu.c b/target/openrisc/cpu.c
index e8abf1f8b5c..c6a1d603afb 100644
--- a/target/openrisc/cpu.c
+++ b/target/openrisc/cpu.c
@@ -248,6 +248,8 @@ static const TCGCPUOps openrisc_tcg_ops = {
     .synchronize_from_tb = openrisc_cpu_synchronize_from_tb,
     .restore_state_to_opc = openrisc_restore_state_to_opc,
 
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
+
 #ifndef CONFIG_USER_ONLY
     .tlb_fill = openrisc_cpu_tlb_fill,
     .cpu_exec_interrupt = openrisc_cpu_exec_interrupt,
diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 8b590e7f17c..28f6f6bc2ba 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -7490,6 +7490,8 @@ static const TCGCPUOps ppc_tcg_ops = {
   .translate_code = ppc_translate_code,
   .restore_state_to_opc = ppc_restore_state_to_opc,
 
+  .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
+
 #ifdef CONFIG_USER_ONLY
   .record_sigsegv = ppc_cpu_record_sigsegv,
 #else
diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
index 5aef9eef366..0e5fa10784d 100644
--- a/target/riscv/tcg/tcg-cpu.c
+++ b/target/riscv/tcg/tcg-cpu.c
@@ -139,6 +139,8 @@ static const TCGCPUOps riscv_tcg_ops = {
     .synchronize_from_tb = riscv_cpu_synchronize_from_tb,
     .restore_state_to_opc = riscv_restore_state_to_opc,
 
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
+
 #ifndef CONFIG_USER_ONLY
     .tlb_fill = riscv_cpu_tlb_fill,
     .cpu_exec_interrupt = riscv_cpu_exec_interrupt,
diff --git a/target/rx/cpu.c b/target/rx/cpu.c
index 0ba0d55ab5b..ae78c661079 100644
--- a/target/rx/cpu.c
+++ b/target/rx/cpu.c
@@ -212,6 +212,8 @@ static const TCGCPUOps rx_tcg_ops = {
     .cpu_exec_interrupt = rx_cpu_exec_interrupt,
     .cpu_exec_halt = rx_cpu_has_work,
     .do_interrupt = rx_cpu_do_interrupt,
+
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
 };
 
 static void rx_cpu_class_init(ObjectClass *klass, void *data)
diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c
index d73142600bf..975b8353026 100644
--- a/target/s390x/cpu.c
+++ b/target/s390x/cpu.c
@@ -360,6 +360,8 @@ static const TCGCPUOps s390_tcg_ops = {
     .debug_excp_handler = s390x_cpu_debug_excp_handler,
     .do_unaligned_access = s390x_cpu_do_unaligned_access,
 #endif /* !CONFIG_USER_ONLY */
+
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
 };
 #endif /* CONFIG_TCG */
 
diff --git a/target/sh4/cpu.c b/target/sh4/cpu.c
index ce84bdf539a..6d319dd01c7 100644
--- a/target/sh4/cpu.c
+++ b/target/sh4/cpu.c
@@ -267,6 +267,8 @@ static const TCGCPUOps superh_tcg_ops = {
     .synchronize_from_tb = superh_cpu_synchronize_from_tb,
     .restore_state_to_opc = superh_restore_state_to_opc,
 
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
+
 #ifndef CONFIG_USER_ONLY
     .tlb_fill = superh_cpu_tlb_fill,
     .cpu_exec_interrupt = superh_cpu_exec_interrupt,
diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c
index 57161201173..961c7f92a84 100644
--- a/target/sparc/cpu.c
+++ b/target/sparc/cpu.c
@@ -1005,6 +1005,8 @@ static const TCGCPUOps sparc_tcg_ops = {
     .synchronize_from_tb = sparc_cpu_synchronize_from_tb,
     .restore_state_to_opc = sparc_restore_state_to_opc,
 
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
+
 #ifndef CONFIG_USER_ONLY
     .tlb_fill = sparc_cpu_tlb_fill,
     .cpu_exec_interrupt = sparc_cpu_exec_interrupt,
diff --git a/target/tricore/cpu.c b/target/tricore/cpu.c
index 16acc4ecb92..960e7093f1c 100644
--- a/target/tricore/cpu.c
+++ b/target/tricore/cpu.c
@@ -179,6 +179,7 @@ static const TCGCPUOps tricore_tcg_ops = {
     .tlb_fill = tricore_cpu_tlb_fill,
     .cpu_exec_interrupt = tricore_cpu_exec_interrupt,
     .cpu_exec_halt = tricore_cpu_has_work,
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
 };
 
 static void tricore_cpu_class_init(ObjectClass *c, void *data)
diff --git a/target/xtensa/cpu.c b/target/xtensa/cpu.c
index 7663b62d01e..0a4068ad7bf 100644
--- a/target/xtensa/cpu.c
+++ b/target/xtensa/cpu.c
@@ -237,6 +237,8 @@ static const TCGCPUOps xtensa_tcg_ops = {
     .debug_excp_handler = xtensa_breakpoint_handler,
     .restore_state_to_opc = xtensa_restore_state_to_opc,
 
+    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
+
 #ifndef CONFIG_USER_ONLY
     .tlb_fill = xtensa_cpu_tlb_fill,
     .cpu_exec_interrupt = xtensa_cpu_exec_interrupt,
