From 476ed77dafaf2b43298ddd936320cd5d3739e0a1 Mon Sep 17 00:00:00 2001 Message-Id: <476ed77dafaf2b43298ddd936320cd5d3739e0a1@dist-git> From: Martin Kletzander Date: Thu, 6 Aug 2015 13:10:43 +0200 Subject: [PATCH] docs: Document how libvirt handles companion controllers The information on companion controllers we give in our documentation is rather sparse. For example, it looks like any controller can be used as a companion one. Also, when using ich9-uhci2, for example, we are able to set some sensible defaults, but it might get confusing for the user as we don't do that for all controller models. https://bugzilla.redhat.com/show_bug.cgi?id=1069590 Signed-off-by: Martin Kletzander (cherry picked from commit b84a2cd87dad4a10e3a0064c30ac3df037048101) Signed-off-by: Martin Kletzander Signed-off-by: Jiri Denemark --- docs/formatdomain.html.in | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 8785200..e2ccfa5 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -3007,6 +3007,11 @@ relationship of the companion to its master controller. A companion controller is on the same bus as its master, so the companion index value should be equal. + Not all controller models can be used as companion controllers + and libvirt might provide some sensible defaults (settings + of master startport and function of an + address) for some particular models. + Preferred companion controllers are ich-uhci[123]. 

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2.5.0