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-rw-r--r--docs/devel/multi-thread-tcg.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/docs/devel/multi-thread-tcg.txt b/docs/devel/multi-thread-tcg.txt
index faf8918b23..faf09c6069 100644
--- a/docs/devel/multi-thread-tcg.txt
+++ b/docs/devel/multi-thread-tcg.txt
@@ -140,6 +140,9 @@ to atomically insert new elements.
The lookup caches are updated atomically and the lookup hash uses QHT
which is designed for concurrent safe lookup.
+Parallel code generation is supported. QHT is used at insertion time
+as the synchronization point across threads, thereby ensuring that we only
+keep track of a single TranslationBlock for each guest code block.
Memory maps and TLBs
--------------------