Helper functions to invoke the write128fn and read128fn
methods of ARMCPRegInfo.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/tcg/helper.h    |  2 ++
 target/arm/tcg/op_helper.c | 29 +++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/target/arm/tcg/helper.h b/target/arm/tcg/helper.h
index 4636d1bc03..45bb87fbaf 100644
--- a/target/arm/tcg/helper.h
+++ b/target/arm/tcg/helper.h
@@ -90,6 +90,8 @@ DEF_HELPER_3(set_cp_reg, void, env, cptr, i32)
 DEF_HELPER_2(get_cp_reg, i32, env, cptr)
 DEF_HELPER_3(set_cp_reg64, void, env, cptr, i64)
 DEF_HELPER_2(get_cp_reg64, i64, env, cptr)
+DEF_HELPER_4(set_cp_reg128, void, env, cptr, i64, i64)
+DEF_HELPER_2(get_cp_reg128, i128, env, cptr)
 
 DEF_HELPER_2(get_r13_banked, i32, env, i32)
 DEF_HELPER_3(set_r13_banked, void, env, i32, i32)
diff --git a/target/arm/tcg/op_helper.c b/target/arm/tcg/op_helper.c
index 4fbd219555..9c7b18fe65 100644
--- a/target/arm/tcg/op_helper.c
+++ b/target/arm/tcg/op_helper.c
@@ -1026,6 +1026,35 @@ uint64_t HELPER(get_cp_reg64)(CPUARMState *env, const void *rip)
     return res;
 }
 
+void HELPER(set_cp_reg128)(CPUARMState *env, const void *rip,
+                           uint64_t valuelo, uint64_t valuehi)
+{
+    const ARMCPRegInfo *ri = rip;
+
+    if (ri->type & ARM_CP_IO) {
+        bql_lock();
+        ri->write128fn(env, ri, valuelo, valuehi);
+        bql_unlock();
+    } else {
+        ri->write128fn(env, ri, valuelo, valuehi);
+    }
+}
+
+Int128 HELPER(get_cp_reg128)(CPUARMState *env, const void *rip)
+{
+    const ARMCPRegInfo *ri = rip;
+    Int128 res;
+
+    if (ri->type & ARM_CP_IO) {
+        bql_lock();
+        res = ri->read128fn(env, ri);
+        bql_unlock();
+    } else {
+        res = ri->read128fn(env, ri);
+    }
+    return res;
+}
+
 void HELPER(pre_hvc)(CPUARMState *env)
 {
     ARMCPU *cpu = env_archcpu(env);
-- 
2.43.0

On Tue, 14 Oct 2025 at 21:16, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Helper functions to invoke the write128fn and read128fn
> methods of ARMCPRegInfo.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---


Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM