On Tue, May 09, 2006 at 07:47:12AM -0700, Daniel Walker wrote:
> On Tue, 2006年05月09日 at 00:00 -0700, Chris Wright wrote:
> > The disabled config options are:
> > - DOUBLEFAULT: are trapped by Xen and not virtualized
> > - HZ: defaults to 100 in Xen VMs
> > - Power management: not supported in unprivileged VMs
> > - SMP: not supported in this set of patches
> > - X86_{UP,LOCAL,IO}_APIC: not supported in unprivileged VMs
> > 
> > +++ linus-2.6/arch/i386/Kconfig
> > @@ -55,6 +55,7 @@ menu "Processor type and features"
> > 
> > config SMP
> > bool "Symmetric multi-processing support"
> > + depends on !X86_XEN
> > ---help---
> > This enables support for systems with more than one CPU. If you have
> > a system with only one CPU, like most personal computers, say N. If
> > @@ -91,6 +92,12 @@ config X86_PC
> > help
> > Choose this option if your computer is a standard PC or compatible.
> > 
> > +config X86_XEN
> > + bool "Xen-compatible"
> > + help
> > + Choose this option if you plan to run this kernel on top of the
> > + Xen Hypervisor.
> > +
>
> Couldn't you just add "depends on !SMP && .." to the config X86_XEN
> block ? 
I guess you could, but it would make it rather non-obvious and tedious
to enable X86_XEN then, wouldn't it?
 christian
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