On Mon, Dec 27, 2010 at 9:31 PM, Bill Nottingham <nott...@redhat.com> wrote: > HVC device
Being unfamiliar with this term; I poked around and looked it up. Since I figure others may not be familiar with it either, I'll elaborate for posterity. HVC refers to the IBM "Hypervisor Virtual Console" originally introduced ~2004, for the PPC arch, according to this document's copyright date: http://www.mjmwired.net/kernel/Documentation/powerpc/hvcs.txt A quick search ran me these two interesting links from ~2008: http://www.mail-archive.com/linuxppc-dev@lists.ozlabs.org/msg22266.html https://bugzilla.redhat.com/show_bug.cgi?id=470839 The latter containing the following interesting information: Jeremy Katz 2008-11-10 17:10:17 EST HVC is used on more than ppc these days; it's also the console type for pvops Xen guests without a framebuffer. So we should probably just create them on all arches Tom "spot" Callaway 2008-11-11 17:45:08 EST Created attachment 323270 [details] add hvc device nodes for all arches If my interpretation of this timeline is correct; wouldn't the ~2004 quirk requiring "vt100-nav" have been solved somewhere in 2005-2006 timeframe before Xen started using it? Since I'm assuming it's primary usecase is now Xen, and not so many ~2004 IBM PPCs with HWVirt, does this quirk still apply to any reasonably recent post-3.0/3.1 Xen machine? If not, then I would suggest moving vt100-nav to a PPC-only quirk, and heading back towards vt100 for the other archs. -- [ Graham Cantin ] | (408) 890-7463 - Google Voice FindME "Never feel stupid for asking questions, feel stupid for ignoring answers." [ System Administrator ] | (XXX) XXX-XXXX xXXX - IT & Office PBX "You're arrogant for thinking you can, ignorant for thinking you cannot." [ RFSpot Mobile Services ] | (XXX) XXX-XXXX - Main Office Direct "Asking questions is important, because that's when intuition gets converted into inspiration." [ NASA Ames Research ] | Building 19, Moffett Field, CA "As living spies we must recruit men who are intelligent but appear to be stupid; who seem to be dull but are strong in heart; men who are agile, vigorous, hardy, and brave; well-versed in lowly matters and able to endure hunger, cold, filth, and humiliation." - Tu Mu (803-825) _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
