Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/tcg/translate-a64.c | 8 ++++++++
 target/arm/tcg/a64.decode      | 1 +
 2 files changed, 9 insertions(+)

diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c
index 022a7c27e3..84c62fdb4e 100644
--- a/target/arm/tcg/translate-a64.c
+++ b/target/arm/tcg/translate-a64.c
@@ -2072,6 +2072,14 @@ static bool trans_ESB(DisasContext *s, arg_ESB *a)
     return true;
 }
 
+static bool trans_GCSB(DisasContext *s, arg_GCSB *a)
+{
+    if (dc_isar_feature(aa64_gcs, s)) {
+        tcg_gen_mb(TCG_BAR_SC | TCG_MO_ALL);
+    }
+    return true;
+}
+
 static bool trans_PACIAZ(DisasContext *s, arg_PACIAZ *a)
 {
     if (s->pauth_active) {
diff --git a/target/arm/tcg/a64.decode b/target/arm/tcg/a64.decode
index 2ae73f443a..01b1b3e38b 100644
--- a/target/arm/tcg/a64.decode
+++ b/target/arm/tcg/a64.decode
@@ -248,6 +248,7 @@ ERETA           1101011 0100 11111 00001 m:1 11111 11111 &reta  # ERETAA, ERETAB
     AUTIA1716   1101 0101 0000 0011 0010 0001 100 11111
     AUTIB1716   1101 0101 0000 0011 0010 0001 110 11111
     ESB         1101 0101 0000 0011 0010 0010 000 11111
+    GCSB        1101 0101 0000 0011 0010 0010 011 11111
     PACIAZ      1101 0101 0000 0011 0010 0011 000 11111
     PACIASP     1101 0101 0000 0011 0010 0011 001 11111
     PACIBZ      1101 0101 0000 0011 0010 0011 010 11111
-- 
2.43.0