Re: [Xen-devel] xen,bproc and grub

[Adam Sulmicki <adam@xxxxxxxxxxxx>]

On Tue, 16 Nov 2004, Keir Fraser wrote:

> Modify boot.S so that if the P6 check fails, rather than halting, you:
>  1. create non-PSE pagetables
>  2. remove PGE and PSE from mmu_cr4_features
>
> The first of these is the trickiest -- you need to allocate some
> memory from somewhere to populate the initial pagetable, but the
> start-of-day memory layout is pretty weird.

Ah, at last, I'm through the crash course on paging.

(it still does not fully boot but I think the hardest part -- the
assembler code and no printk() is behind me.)

=============================================================================
VFS: Mounted root (nfs filesystem) readonly.
Freeing unused kernel memory: 100k freed

sh-2.05b# mount /proc

sh-2.05b# cat /proc/cpuinfo

processor       : 0
vendor_id       : CentaurHauls
cpu family      : 6
model           : 7
model name      : VIA Samuel 2
stepping        : 3
cpu MHz         : 533.502
cache size      : 64 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu de tsc msr cx8 mtrr pge mmx 3dnow
bogomips        : 1048.57

sh-2.05b# source /usr/src/cm/k

kexec_load succeeded (multiboot-x86)

sh-2.05b# /sbin/kexec -e

Starting new kernel
 __  __            ____    ___     _          _
 \ \/ /___ _ __   |___ \  / _ \   | |__   ___| |_ __ _
  \  // _ \ '_ \    __) || | | |__| '_ \ / _ \ __/ _` |
  /  \  __/ | | |  / __/ | |_| |__| |_) |  __/ || (_| |
 /_/\_\___|_| |_| |_____(_)___/   |_.__/ \___|\__\__,_|

 http://www.cl.cam.ac.uk/netos/xen
 University of Cambridge Computer Laboratory


 CTRL-A Z for help | 19200 8N1 | NOR | Minicom 2.00.0 | VT102 | Offline
=============================================================================




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