Re: [XenPPC] Should the platform name be "Xen-Maple"

[Hollis Blanchard <hollisb@xxxxxxxxxx>]

"platform" is build-time and comes from define_machine(). That should be
"Xen".

"machine" we can display ourselves via ppc_md.show_cpuinfo(). We can get
that from the device tree, just like CHRP does.

On Tue, 2007-02-27 at 16:55 -0500, Jimi Xenidis wrote:
> I agree, but in our current Kernel source the string in question  
> comes from the machine description.
> Am I missing something?
> -Jx
> On Feb 27, 2007, at 3:43 PM, Hollis Blanchard wrote:
> 
> > Jimi, the context is that we need to modify Fedora's installer so that
> > it properly detects the system it's running on. That means we're
> > implementing a user-visible interface right now. I think "Xen- 
> > Maple" is
> > a terrible name to permanently commit ourselves to. Let's not.
> >
> > PPC's cpuinfo seems to have a split between "platform" and
> > "machine" (where machine is more specific). I think platform = Xen is
> > fine, and machine is the underlying machine.
> >
> > On Tue, 2007-02-27 at 14:56 -0500, Jimi Xenidis wrote:
> >> This comes from the fact that we are running xen from an underlying
> >> host platform.
> >> for example, if you boot linux without xen but on SLOF your machine
> >> name is "Maple".
> >> see:
> >>    arch/powerpc/platforms/xen/setup.c define_machine 246
> >> define_machine(xen)
> >>
> >>
> >> I'd be interested in changing this to "Xen" for DomUs, but Dom0
> >> should reflect the underlying machine type that linux would use
> >> without Xen.
> >> -JX
> >>
> >>
> >> On Feb 27, 2007, at 2:48 PM, Jerone Young wrote:
> >>
> >>> In /proc/cpuinfo of a domain0 you see the following:
> >>>
> >>>  processor       : 0
> >>>  cpu             : PPC970MP, altivec supported
> >>>  clock           : 2300.000000MHz
> >>>  revision        : 1.1 (pvr 0044 0101)
> >>>  processor       : 1
> >>>  cpu             : PPC970MP, altivec supported
> >>>  clock           : 2300.000000MHz
> >>>  revision        : 1.1 (pvr 0044 0101)
> >>>  processor       : 2
> >>>  cpu             : PPC970MP, altivec supported
> >>>  clock           : 2300.000000MHz
> >>>  revision        : 1.1 (pvr 0044 0101)
> >>>  processor       : 3
> >>>  cpu             : PPC970MP, altivec supported
> >>>  clock           : 2300.000000MHz
> >>>  revision        : 1.1 (pvr 0044 0101)
> >>>  timebase        : 14318378
> >>>  platform        : Xen-Maple
> >>>
> >>> The "platform" line "Xen-Maple" is currently used by some tools in
> >>> distros to identify the platform of the machine. The question I
> >>> pose is
> >>> should this be changed from "Xen-Maple" since running on Xen does  
> >>> not
> >>> mean you are running on Maple.
> >>>
> >>> Something like "Xen" would probably be better. What do you guys
> >>> think ?
> >>>
> >>>
> >>> _______________________________________________
> >>> Xen-ppc-devel mailing list
> >>> Xen-ppc-devel@xxxxxxxxxxxxxxxxxxx
> >>> http://lists.xensource.com/xen-ppc-devel
> >>
> >>
> >> _______________________________________________
> >> Xen-ppc-devel mailing list
> >> Xen-ppc-devel@xxxxxxxxxxxxxxxxxxx
> >> http://lists.xensource.com/xen-ppc-devel
> > -- 
> > Hollis Blanchard
> > IBM Linux Technology Center
> >
> 
-- 
Hollis Blanchard
IBM Linux Technology Center


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