cvs commit: src/sys/boot/common load_elf.c src/sys/boot/i386/boot2 boot2.c src/sys/boot/i386/libi386 elf32_freebsd.c src/sys/boot/pc98/boot2 boot.c

[Ruslan Ermilov]

On Mon, Oct 30, 2006 at 11:55:54AM -0500, John Baldwin wrote:
> On Sunday 29 October 2006 09:50, Ruslan Ermilov wrote:
> > ru          2006-10-29 14:50:58 UTC
> > 
> >   FreeBSD src repository
> > 
> >   Modified files:
> >     sys/boot/common      load_elf.c 
> >     sys/boot/i386/boot2  boot2.c 
> >     sys/boot/i386/libi386 elf32_freebsd.c 
> >     sys/boot/pc98/boot2  boot.c 
> >   Log:
> >   Because the BTX mini-kernel now uses flat memory mode and clients
> >   are no longer limited to a virtual address space of 16 megabytes,
> >   only mask high two bits of a virtual address.  This allows to load
> >   larger kernels (up to 1 gigabyte).  Not masking addresses at all
> >   was a bad idea on machines with less than >3G of memory -- kernels
> >   are linked at 0xc0xxxxxx, and that would attempt to load a kernel
> >   at above 3G.  By masking only two highest bits we stay within the
> >   safe limits while still allowing to boot larger kernels.
> >   
> >   (This is a safer reimplmentation of sys/boot/i386/boot2/boot.2.c
> >   rev. 1.71.)
> >   
> >   Prodded by:     jhb
> >   Tested by:      nyan (pc98)
> 
> Thanks!
> 
Do you think it would be a good idea to MFC this in time for 6.2?


Cheers,
-- 
Ruslan Ermilov
ru at FreeBSD.org
FreeBSD committer
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