target/arm: Load gcs record for RET with PAuth

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20251008215613.300150-60-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c
index dfd5b17831759fa2b7d29baf917120cf511f5646..918d5ed112007147b8bcb995b3991c4ea09ec67e 100644 (file)
--- a/target/arm/tcg/translate-a64.c
+++ b/target/arm/tcg/translate-a64.c
@@ -1898,7 +1898,12 @@ static bool trans_RETA(DisasContext *s, arg_reta *a)
     }
 
     dst = auth_branch_target(s, cpu_reg(s, 30), cpu_X[31], !a->m);
-    gen_a64_set_pc(s, dst);
+    if (s->gcs_en) {
+        GCSInstructionType it = a->m ? GCS_IT_RET_PauthB : GCS_IT_RET_PauthA;
+        gen_load_check_gcs_record(s, dst, it, 30);
+    } else {
+        gen_a64_set_pc(s, dst);
+    }
     s->base.is_jmp = DISAS_JUMP;
     return true;
 }