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authorAndrew Waterman <andrew@sifive.com>2020-08-24 16:58:43 -0700
committerAndrew Waterman <andrew@sifive.com>2020-08-24 16:58:43 -0700
commit973e8eb1e8b91e08f7e6d5127d040271a0fe076e (patch)
tree4de6f7cc9432da3cf990740be521bf68f886d6ca /src/priv-preface.tex
parentfd410ea94d6427f10b82fdca43df9734e6137557 (diff)
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Clarify that ASIDs are (currently) local to a hart
Diffstat (limited to 'src/priv-preface.tex')
-rw-r--r--src/priv-preface.tex5
1 files changed, 2 insertions, 3 deletions
diff --git a/src/priv-preface.tex b/src/priv-preface.tex
index 3afa0a4..389e57c 100644
--- a/src/priv-preface.tex
+++ b/src/priv-preface.tex
@@ -100,9 +100,8 @@ Changes from version 1.10 include:
required to, clear LR reservations if A extension present.
\item The virtual-memory system no longer permits supervisor mode to execute
instructions from user pages, regardless of the SUM setting.
-\item Software is strongly recommended to allocate ASIDs globally, so that
- a future extension can globalize ASIDs for improved performance and hardware
- flexibility.
+\item Clarified that ASIDs are private to a hart, and added commentary about
+ the possibility of a future global-ASID extension.
\item SFENCE.VMA semantics have been clarified.
\item Made the {\tt mstatus}.MPP field \warl, rather than \wlrl.
\item Made the unused {\em x}{\tt ip} fields \wpri, rather than \wiri.