diff mbox series

[v3,5/6] target/arm: Handle mte in do_ldrq, do_ldro

Message ID 20240207025210.8837-6-richard.henderson@linaro.org
State Superseded
Headers show
Series target/arm: assorted mte fixes | expand

Commit Message

Richard Henderson Feb. 7, 2024, 2:52 a.m. UTC 
These functions "use the standard load helpers", but
fail to clean_data_tbi or populate mtedesc.

Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/tcg/translate-sve.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c
index 508f7b6bbd..ada05aa530 100644
--- a/target/arm/tcg/translate-sve.c
+++ b/target/arm/tcg/translate-sve.c
@@ -4861,8 +4861,13 @@  static void do_ldrq(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype)
     unsigned vsz = vec_full_reg_size(s);
     TCGv_ptr t_pg;
     int poff;
+    uint32_t desc;
 
     /* Load the first quadword using the normal predicated load helpers.  */
+    if (!s->mte_active[0]) {
+        addr = clean_data_tbi(s, addr);
+    }
+
     poff = pred_full_reg_offset(s, pg);
     if (vsz > 16) {
         /*
@@ -4886,7 +4891,8 @@  static void do_ldrq(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype)
 
     gen_helper_gvec_mem *fn
         = ldr_fns[s->mte_active[0]][s->be_data == MO_BE][dtype][0];
-    fn(tcg_env, t_pg, addr, tcg_constant_i32(simd_desc(16, 16, zt)));
+    desc = make_svemte_desc(s, 16, 1, dtype_msz(dtype), false, zt);
+    fn(tcg_env, t_pg, addr, tcg_constant_i32(desc));
 
     /* Replicate that first quadword.  */
     if (vsz > 16) {
@@ -4929,6 +4935,7 @@  static void do_ldro(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype)
     unsigned vsz_r32;
     TCGv_ptr t_pg;
     int poff, doff;
+    uint32_t desc;
 
     if (vsz < 32) {
         /*
@@ -4941,6 +4948,9 @@  static void do_ldro(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype)
     }
 
     /* Load the first octaword using the normal predicated load helpers.  */
+    if (!s->mte_active[0]) {
+        addr = clean_data_tbi(s, addr);
+    }
 
     poff = pred_full_reg_offset(s, pg);
     if (vsz > 32) {
@@ -4965,7 +4975,8 @@  static void do_ldro(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype)
 
     gen_helper_gvec_mem *fn
         = ldr_fns[s->mte_active[0]][s->be_data == MO_BE][dtype][0];
-    fn(tcg_env, t_pg, addr, tcg_constant_i32(simd_desc(32, 32, zt)));
+    desc = make_svemte_desc(s, 32, 1, dtype_msz(dtype), false, zt);
+    fn(tcg_env, t_pg, addr, tcg_constant_i32(desc));
 
     /*
      * Replicate that first octaword.