Re: [discuss] [patch] x86_64: align and pad x86_64 GDT on page boundary

[Ravikiran G Thirumalai]

On Thu, Dec 08, 2005 at 09:15:18PM +0100, Andi Kleen wrote:
> On Thu, Dec 08, 2005 at 11:42:32AM -0800, Ravikiran G Thirumalai wrote:
> >  
> > -	.align  L1_CACHE_BYTES
> > +	/* zero the remaining page */
> > +	.fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0
> > +	
> >  ENTRY(idt_table)	
> 
> Why can't the IDT not be shared with the GDT page? It should be mostly
> read only right and putting r-o data on that page should be ok, right?

Yes, you are right.  This should not have been a problem.  
Some people reported this symbol (cpu_gdt) though.  Will have to go back and
check.

Thanks,
Kiran
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/