1 files changed, 38 insertions, 0 deletions

diff --git a/target/arm/translate.h b/target/arm/translate.h
index 423b0e08df..ccf60c96d8 100644
--- a/target/arm/translate.h
+++ b/target/arm/translate.h
@@ -87,6 +87,8 @@ typedef struct DisasContext {
     bool bt;
     /* True if any CP15 access is trapped by HSTR_EL2 */
     bool hstr_active;
+    /* True if memory operations require alignment */
+    bool align_mem;
     /*
      * >= 0, a copy of PSTATE.BTYPE, which will be 0 without v8.5-BTI.
      *  < 0, set by the current instruction.
@@ -202,6 +204,7 @@ void arm_test_cc(DisasCompare *cmp, int cc);
 void arm_free_cc(DisasCompare *cmp);
 void arm_jump_cc(DisasCompare *cmp, TCGLabel *label);
 void arm_gen_test_cc(int cc, TCGLabel *label);
+MemOp pow2_align(unsigned i);
 
 /* Return state of Alternate Half-precision flag, caller frees result */
 static inline TCGv_i32 get_ahp_flag(void)
@@ -394,6 +397,17 @@ typedef void CryptoThreeOpIntFn(TCGv_ptr, TCGv_ptr, TCGv_i32);
 typedef void CryptoThreeOpFn(TCGv_ptr, TCGv_ptr, TCGv_ptr);
 typedef void AtomicThreeOpFn(TCGv_i64, TCGv_i64, TCGv_i64, TCGArg, MemOp);
 
+/**
+ * arm_tbflags_from_tb:
+ * @tb: the TranslationBlock
+ *
+ * Extract the flag values from @tb.
+ */
+static inline CPUARMTBFlags arm_tbflags_from_tb(const TranslationBlock *tb)
+{
+    return (CPUARMTBFlags){ tb->flags, tb->cs_base };
+}
+
 /*
  * Enum for argument to fpstatus_ptr().
  */
@@ -446,4 +460,28 @@ static inline TCGv_ptr fpstatus_ptr(ARMFPStatusFlavour flavour)
     return statusptr;
 }
 
+/**
+ * finalize_memop:
+ * @s: DisasContext
+ * @opc: size+sign+align of the memory operation
+ *
+ * Build the complete MemOp for a memory operation, including alignment
+ * and endianness.
+ *
+ * If (op & MO_AMASK) then the operation already contains the required
+ * alignment, e.g. for AccType_ATOMIC.  Otherwise, this an optionally
+ * unaligned operation, e.g. for AccType_NORMAL.
+ *
+ * In the latter case, there are configuration bits that require alignment,
+ * and this is applied here.  Note that there is no way to indicate that
+ * no alignment should ever be enforced; this must be handled manually.
+ */
+static inline MemOp finalize_memop(DisasContext *s, MemOp opc)
+{
+    if (s->align_mem && !(opc & MO_AMASK)) {
+        opc |= MO_ALIGN;
+    }
+    return opc | s->be_data;
+}
+
 #endif /* TARGET_ARM_TRANSLATE_H */