From fb9e8b944edbce1201fb05beb6fade00f94ae937 Mon Sep 17 00:00:00 2001
From: David Kruckemyer <47680170+dkruckemyer-ventana@users.noreply.github.com>
Date: Tue, 28 May 2024 14:01:17 -0700
Subject: [PATCH] Clarify CBO access size (#1431)

Define access size to be size of cache block for PMP/PMA checks
---
 src/cmo.adoc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/cmo.adoc b/src/cmo.adoc
index f8d604480..42941bb44 100644
--- a/src/cmo.adoc
+++ b/src/cmo.adoc
@@ -337,6 +337,9 @@ _This specification assumes that the above constraints will typically be met for
 main memory regions and may be met for certain I/O regions._
 ====
 
+Additionally, for the purposes of PMP and PMA checks, the access size of a CMO
+instruction equals the size of the cache block accessed by the instruction.
+
 The Zicboz extension introduces an additional supported access type PMA for
 cache-block zero instructions. Main memory regions are required to support
 accesses by cache-block zero instructions; however, I/O regions may specify