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-rw-r--r--target/arm/translate.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 3b071012ca..43ff0d4b8a 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -908,6 +908,21 @@ static inline void store_reg_from_load(DisasContext *s, int reg, TCGv_i32 var)
 #define IS_USER_ONLY 0
 #endif
 
+MemOp pow2_align(unsigned i)
+{
+    static const MemOp mop_align[] = {
+        0, MO_ALIGN_2, MO_ALIGN_4, MO_ALIGN_8, MO_ALIGN_16,
+        /*
+         * FIXME: TARGET_PAGE_BITS_MIN affects TLB_FLAGS_MASK such
+         * that 256-bit alignment (MO_ALIGN_32) cannot be supported:
+         * see get_alignment_bits(). Enforce only 128-bit alignment for now.
+         */
+        MO_ALIGN_16
+    };
+    g_assert(i < ARRAY_SIZE(mop_align));
+    return mop_align[i];
+}
+
 /*
  * Abstractions of "generate code to do a guest load/store for
  * AArch32", where a vaddr is always 32 bits (and is zero