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lguest: set max_pfn_mapped, growl loudly at Yinghai Lu 

6af61a7614 'x86: clean up max_pfn_mapped
usage - 32-bit' makes the following comment:

    XEN PV and lguest may need to assign max_pfn_mapped too.

But no CC.  Yinghai, wasting fellow developers' time is a VERY bad
habit.  If you do it again, I will hunt you down and try to extract
the three hours of my life I just lost :)

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
This commit is contained in:
Rusty Russell 2008-07-29 09:58:29 -05:00
parent 63add2f207
commit 5d006d8d09
1 changed files with 3 additions and 0 deletions
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3
arch/x86/lguest/boot.c
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@ -1014,6 +1014,9 @@ __init void lguest_init(void)
init_pg_tables_start = __pa(pg0); init_pg_tables_start = __pa(pg0);
init_pg_tables_end = __pa(pg0); init_pg_tables_end = __pa(pg0);
/* As described in head_32.S, we map the first 128M of memory. */
max_pfn_mapped = (128*1024*1024) >> PAGE_SHIFT;
/* Load the %fs segment register (the per-cpu segment register) with /* Load the %fs segment register (the per-cpu segment register) with
* the normal data segment to get through booting. */ * the normal data segment to get through booting. */
asm volatile ("mov %0, %%fs" : : "r" (__KERNEL_DS) : "memory"); asm volatile ("mov %0, %%fs" : : "r" (__KERNEL_DS) : "memory");