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

[Zwane Mwaikambo <zwane@arm.linux.org.uk>]

On Fri, 9 Dec 2005, Ravikiran G Thirumalai wrote:

> > For the BP case it's ok as 
> > long as the beginning is correctly aligned and the rest 
> > is read-only.
> 
> Just that any writes on the bp GDT will invalidate the idt_table cacheline,
> which is read mostly (as Nippun pointed out).  So could we keep the padding
> as it is for the BP too? 

But how often is this occuring? I presume this is for the virtualisation 
case only?

Thanks
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