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[PULL,v2,10/14] target-mips: ll and lld cause AdEL exception for unaligned address

Message ID 1423935904-29405-11-git-send-email-leon.alrae@imgtec.com
State New
Headers show

Commit Message

Leon Alrae Feb. 14, 2015, 5:45 p.m. UTC 
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Maciej W. Rozycki <macro@linux-mips.org>
---
 target-mips/op_helper.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)
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Patch

diff --git a/target-mips/op_helper.c b/target-mips/op_helper.c
index ea7d95f..73a8e45 100644
--- a/target-mips/op_helper.c
+++ b/target-mips/op_helper.c
@@ -304,16 +304,20 @@  static inline hwaddr do_translate_address(CPUMIPSState *env,
     }
 }
 
-#define HELPER_LD_ATOMIC(name, insn)                                          \
+#define HELPER_LD_ATOMIC(name, insn, almask)                                  \
 target_ulong helper_##name(CPUMIPSState *env, target_ulong arg, int mem_idx)  \
 {                                                                             \
+    if (arg & almask) {                                                       \
+        env->CP0_BadVAddr = arg;                                              \
+        helper_raise_exception(env, EXCP_AdEL);                               \
+    }                                                                         \
     env->lladdr = do_translate_address(env, arg, 0);                          \
     env->llval = do_##insn(env, arg, mem_idx);                                \
     return env->llval;                                                        \
 }
-HELPER_LD_ATOMIC(ll, lw)
+HELPER_LD_ATOMIC(ll, lw, 0x3)
 #ifdef TARGET_MIPS64
-HELPER_LD_ATOMIC(lld, ld)
+HELPER_LD_ATOMIC(lld, ld, 0x7)
 #endif
 #undef HELPER_LD_ATOMIC