[PATCH] docs: bhyve: document ignoring unknown MSRs

Roman Bogorodskiy bogorodskiy at gmail.com
Tue Jul 14 15:46:38 UTC 2020

Ignoring unknown MSRs using <features> element
<msrs unknown='ignore'/> was supported for quite some already,
so add documentation for it for completeness of flags coverage,
as some guests can be extra picky about flags passed to bhyve,
and it's useful to know how to control those.

Signed-off-by: Roman Bogorodskiy <bogorodskiy at gmail.com>
 docs/drvbhyve.html.in | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/docs/drvbhyve.html.in b/docs/drvbhyve.html.in
index 2e9cf5551b..66a13be1f6 100644
--- a/docs/drvbhyve.html.in
+++ b/docs/drvbhyve.html.in
@@ -462,6 +462,24 @@ Example:</p>
+<h3><a id="msrs">Ignoring unknown MSRs reads and writes</a></h3>
+<p><span class="since">Since 5.1.0</span>, it's possible to make bhyve
+ignore accesses to unimplemented Model Specific Registers (MSRs).
+<domain type="bhyve">
+    ...
+    <features>
+      ...
+      <msrs unknown='ignore'/>
+      ...
+    </features>
+    ...
 <h3><a id="bhyvecommand">Pass-through of arbitrary bhyve commands</a></h3>
 <p><span class="since">Since 5.1.0</span>, it's possible to pass additional command-line

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