From: Richard Henderson <richard.henderson@linaro.org>
Date: Wed, 8 Oct 2025 21:55:59 +0000 (-0700)
Subject: target/arm: Load gcs record for RET with PAuth
X-Git-Tag: v10.2.0-rc1~67^2~17
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=3d366bb67ff2eab40052bc09983328b06c394e12;p=thirdparty%2Fqemu.git

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 dfd5b17831..918d5ed112 100644
--- 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;
 }