On Thu, 23 Nov 2017 17:09:16 +0100 Halil Pasic <pa...@linux.vnet.ibm.com> wrote:
[I need time to process your other remarks.] > On 11/22/2017 01:13 PM, Cornelia Huck wrote: > >> Also I can't find anything about vfio-ccw in the upstream users > >> manual for 2.10.91. > > > > We have an "upstream users manual"? > > > This is what I mean: > https://qemu.weilnetz.de/doc/qemu-doc.html This is really hit-and-miss. Some things are documented in there, some are not. I usually consider the output of the binary the canonical list of supported devices (in combination with the x- notation.) > > >> So I would argue using vfio-ccw is using an > >> undocumented feature: if undocumented features changing in a non > >> compatible way hits you, it's partly your own fault. > > > > If it's an x- interface, it is preliminary. If not, we should avoid > > breaking it. > > > > I don't see this documented in the users manual? Shouldn't the users > know what is preliminary? > > Where is this documented? It is long standing practice, but I cannot point to documentation (maybe someone else can?)