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-rw-r--r--include/exec/cpu-all.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h
index 78d258af44..09bf4c0cc6 100644
--- a/include/exec/cpu-all.h
+++ b/include/exec/cpu-all.h
@@ -314,6 +314,9 @@ CPUArchState *cpu_copy(CPUArchState *env);
  *
  * Use TARGET_PAGE_BITS_MIN so that these bits are constant
  * when TARGET_PAGE_BITS_VARY is in effect.
+ *
+ * The count, if not the placement of these bits is known
+ * to tcg/tcg-op-ldst.c, check_max_alignment().
  */
 /* Zero if TLB entry is valid.  */
 #define TLB_INVALID_MASK    (1 << (TARGET_PAGE_BITS_MIN - 1))