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-rw-r--r--src/priv-cfi.adoc5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/priv-cfi.adoc b/src/priv-cfi.adoc
index 1b03257..082ceb7 100644
--- a/src/priv-cfi.adoc
+++ b/src/priv-cfi.adoc
@@ -196,6 +196,11 @@ S-mode is not implemented, activation in U-mode is also not supported. These
functionalities may be introduced in a future standard extension.
====
+NOTE: Changes to `xSSE` take effect immediately; address-translation caches
+need not be synchronized with SFENCE.VMA, HFENCE.GVMA, or HFENCE.VVMA
+instructions.
+
+
[[SSMP]]
==== Shadow Stack Memory Protection