linux-kernel - Re: [PATCH] paravirt.h

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Message-ID: <20060822142519.GX11651@stusta.de>
Date:	Tue, 22 Aug 2006 16:25:19 +0200
From:	Adrian Bunk <bunk@...sta.de>
To:	Andi Kleen <ak@....de>
Cc:	virtualization@...ts.osdl.org,
	Arjan van de Ven <arjan@...radead.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Andrew Morton <akpm@...l.org>,
	Chris Wright <chrisw@...s-sol.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] paravirt.h

On Tue, Aug 22, 2006 at 03:50:57PM +0200, Andi Kleen wrote:
> 
> > this would need a "const after boot" section; which is really not hard
> > to make and probably useful for a lot more things.... todo++
> 
> except for anything that needs tlb entries in user space. And it only gives you
> false sense of security. --todo

What's the alternative?

Change it from a struct to a compile time choice?
This should address both the security concerns and your tlb issues at 
the price of runtime flexibility.

> -Andi

cu
Adrian

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