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-rw-r--r--target-arm/internals.h24
-rw-r--r--target-arm/op_helper.c6
2 files changed, 25 insertions, 5 deletions
diff --git a/target-arm/internals.h b/target-arm/internals.h
index 2e70272be2..54a0fb1db7 100644
--- a/target-arm/internals.h
+++ b/target-arm/internals.h
@@ -263,7 +263,9 @@ enum arm_exception_class {
 
 #define ARM_EL_EC_SHIFT 26
 #define ARM_EL_IL_SHIFT 25
+#define ARM_EL_ISV_SHIFT 24
 #define ARM_EL_IL (1 << ARM_EL_IL_SHIFT)
+#define ARM_EL_ISV (1 << ARM_EL_ISV_SHIFT)
 
 /* Utility functions for constructing various kinds of syndrome value.
  * Note that in general we follow the AArch64 syndrome values; in a
@@ -383,11 +385,27 @@ static inline uint32_t syn_insn_abort(int same_el, int ea, int s1ptw, int fsc)
         | (ea << 9) | (s1ptw << 7) | fsc;
 }
 
-static inline uint32_t syn_data_abort(int same_el, int ea, int cm, int s1ptw,
-                                      int wnr, int fsc)
+static inline uint32_t syn_data_abort_no_iss(int same_el,
+                                             int ea, int cm, int s1ptw,
+                                             int wnr, int fsc)
 {
     return (EC_DATAABORT << ARM_EL_EC_SHIFT) | (same_el << ARM_EL_EC_SHIFT)
-        | (ea << 9) | (cm << 8) | (s1ptw << 7) | (wnr << 6) | fsc;
+           | ARM_EL_IL
+           | (ea << 9) | (cm << 8) | (s1ptw << 7) | (wnr << 6) | fsc;
+}
+
+static inline uint32_t syn_data_abort_with_iss(int same_el,
+                                               int sas, int sse, int srt,
+                                               int sf, int ar,
+                                               int ea, int cm, int s1ptw,
+                                               int wnr, int fsc,
+                                               bool is_16bit)
+{
+    return (EC_DATAABORT << ARM_EL_EC_SHIFT) | (same_el << ARM_EL_EC_SHIFT)
+           | (is_16bit ? 0 : ARM_EL_IL)
+           | ARM_EL_ISV | (sas << 22) | (sse << 21) | (srt << 16)
+           | (sf << 15) | (ar << 14)
+           | (ea << 9) | (cm << 8) | (s1ptw << 7) | (wnr << 6) | fsc;
 }
 
 static inline uint32_t syn_swstep(int same_el, int isv, int ex)
diff --git a/target-arm/op_helper.c b/target-arm/op_helper.c
index d626ff1a20..c7fba8526c 100644
--- a/target-arm/op_helper.c
+++ b/target-arm/op_helper.c
@@ -115,7 +115,8 @@ void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
             syn = syn_insn_abort(same_el, 0, fi.s1ptw, syn);
             exc = EXCP_PREFETCH_ABORT;
         } else {
-            syn = syn_data_abort(same_el, 0, 0, fi.s1ptw, is_write == 1, syn);
+            syn = syn_data_abort_no_iss(same_el,
+                                        0, 0, fi.s1ptw, is_write == 1, syn);
             if (is_write == 1 && arm_feature(env, ARM_FEATURE_V6)) {
                 fsr |= (1 << 11);
             }
@@ -161,7 +162,8 @@ void arm_cpu_do_unaligned_access(CPUState *cs, vaddr vaddr, int is_write,
     }
 
     raise_exception(env, EXCP_DATA_ABORT,
-                    syn_data_abort(same_el, 0, 0, 0, is_write == 1, 0x21),
+                    syn_data_abort_no_iss(same_el,
+                                          0, 0, 0, is_write == 1, 0x21),
                     target_el);
 }