docs: drvbhyve: add guest-specific nodes section

Add a section with guest-specific notes. Start with LPC slot address
information for the Windows guests.

Signed-off-by: Roman Bogorodskiy <bogorodskiy@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>

diff --git a/docs/drvbhyve.rst b/docs/drvbhyve.rst
index 3efbc03ce5907501effd8d039bb4488c5bc70f52..73372ff7cf7d825d1f938b2cd8907d81a19eb370 100644 (file)
--- a/docs/drvbhyve.rst
+++ b/docs/drvbhyve.rst
@@ -683,3 +683,19 @@ on FreeBSD.
 Users must configure the device for passthrough manually either by
 using ``devctl(8)`` or by setting ``pptdevs`` in ``loader.conf(5)``.
 Please refer to the ``vmm(4)`` manual page for more details.
+
+Guest-specific considerations
+-----------------------------
+
+Windows
+~~~~~~~
+
+For Windows guests, it is recommended to have the LPC controller on slot 31.
+As the libvirt driver allocates slot 1 for the LPC controller by default,
+the address must be specified explicitly:
+
+::
+
+    <controller type='isa' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x0'/>
+    </controller>