[PATCH v4 14/30] target/arm: Enforce word alignment for LDRD/STRD

[Richard Henderson]

Buglink: https://bugs.launchpad.net/qemu/+bug/1905356
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/translate.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/target/arm/translate.c b/target/arm/translate.c
index 7472e98f09..63c665fb4e 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -6512,13 +6512,13 @@ static bool trans_LDRD_rr(DisasContext *s, arg_ldst_rr 
*a)
     addr = op_addr_rr_pre(s, a);
 
     tmp = tcg_temp_new_i32();
-    gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL);
+    gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
     store_reg(s, a->rt, tmp);
 
     tcg_gen_addi_i32(addr, addr, 4);
 
     tmp = tcg_temp_new_i32();
-    gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL);
+    gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
     store_reg(s, a->rt + 1, tmp);
 
     /* LDRD w/ base writeback is undefined if the registers overlap.  */
@@ -6541,13 +6541,13 @@ static bool trans_STRD_rr(DisasContext *s, arg_ldst_rr 
*a)
     addr = op_addr_rr_pre(s, a);
 
     tmp = load_reg(s, a->rt);
-    gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL);
+    gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
     tcg_temp_free_i32(tmp);
 
     tcg_gen_addi_i32(addr, addr, 4);
 
     tmp = load_reg(s, a->rt + 1);
-    gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL);
+    gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
     tcg_temp_free_i32(tmp);
 
     op_addr_rr_post(s, a, addr, -4);
@@ -6649,13 +6649,13 @@ static bool op_ldrd_ri(DisasContext *s, arg_ldst_ri *a, 
int rt2)
     addr = op_addr_ri_pre(s, a);
 
     tmp = tcg_temp_new_i32();
-    gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL);
+    gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
     store_reg(s, a->rt, tmp);
 
     tcg_gen_addi_i32(addr, addr, 4);
 
     tmp = tcg_temp_new_i32();
-    gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL);
+    gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
     store_reg(s, rt2, tmp);
 
     /* LDRD w/ base writeback is undefined if the registers overlap.  */
@@ -6688,13 +6688,13 @@ static bool op_strd_ri(DisasContext *s, arg_ldst_ri *a, 
int rt2)
     addr = op_addr_ri_pre(s, a);
 
     tmp = load_reg(s, a->rt);
-    gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL);
+    gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
     tcg_temp_free_i32(tmp);
 
     tcg_gen_addi_i32(addr, addr, 4);
 
     tmp = load_reg(s, rt2);
-    gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL);
+    gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
     tcg_temp_free_i32(tmp);
 
     op_addr_ri_post(s, a, addr, -4);
-- 
2.25.1