Re: [PATCH] DevFS support for /dev/cpu/X/(cpuid|msr)

Matt Dainty
2002-01-08T11:52:53Z

On Tue, Jan 08, 2002 at 08:14:51PM +1100, Rusty Russell wrote:
> On Tue, 8 Jan 2002 11:13:02 +0000
> Matt Dainty <matt@bodgit-n-scarper.com> wrote:
>
> > On Sun, Jan 06, 2002 at 06:40:58PM -0700, Richard Gooch wrote:
> > >
> > > So I'd like to propose a new file (say kernel/smp.c) which has generic
> > > startup code for each CPU. To start with, it can have a
> > > generic_cpu_init() function, which is called by each arch. Note that
> > > this function would be called for the boot CPU too.
> >
> > Would this also be hacked into whatever Hotswap CPU support exists? Such
>
> We use /proc/sys/cpu/#/. I don't understand what /dev/cpu/xxx is supposed to
> do.

/dev/cpu/[0...]/... contains (on i386 at least), the cpuid and msr character
devices, except on devfs-enabled boxen, these don't appear automatically.

Matt
--
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