Delay in copying Linuxbios to ram

[Eric W. Biederman]

SONE Takeshi <ts1 at cma.co.jp> writes:

> On Mon, Apr 28, 2003 at 01:55:16PM -0600, Eric W. Biederman wrote:
> > Steve Gehlbach <steve at nexpath.com> writes:
> > 
> > > Eric W. Biederman wrote:
> > > 
> > > > ``Write Protect'' in the mtrrs does not mean write protected.  It is a
> strange
> 
> > > 
> > > > messed up form of write-through.  In particular it dumps the cache on
> writes
> 
> > > > it does not forbid writes.
> > > > Unless you know of a situation where write protect is more appropriate
> please
> 
> > > > use write-through.  It is less confusing, and since no one is writing to
> that
> 
> > > > area anyway it gives the exact same result, reads are cached.
> > > > Eric
> 
> 
> So why did you use WP cache for "XIP" area?
> Using same type for both area makes sense.

Yep.  Good catch.  It looks like the XIP area needs to
be fixed as well.

Actually now that I think about it, is there any reason to
not use XIP infrastructure for running the rom at 0xf000
as well as at higher addresses?  Sure it's a waste but
we have mtrr registers to burn at that point.

Eric