linux-kernel - Re: [Techteam] [RFC PATCH] x86-32: Start out eflags and cr4 clean

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Message-ID: <50F9F152.1000907@laptop.org>
Date:	Fri, 18 Jan 2013 15:05:22 -1000
From:	Mitch Bradley <wmb@...top.org>
To:	"H. Peter Anvin" <hpa@...ux.intel.com>
CC:	Andres Salomon <dilinger@...ued.net>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Ian Campbell <ian.campbell@...rix.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Vivek Goyal <vgoyal@...ibm.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"H. Peter Anvin" <hpa@...or.com>, Dave Jones <davej@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...nel.org>, techteam@...ts.laptop.org,
	Yinghai Lu <yhlu.kernel@...il.com>
Subject: Re: [Techteam] [RFC PATCH] x86-32: Start out eflags and cr4 clean



On 1/18/2013 2:42 PM, H. Peter Anvin wrote:
> On 01/18/2013 04:40 PM, Andres Salomon wrote:
>> Bad news on this patch; I've been told that it breaks booting on an
>> XO-1.5.  Does anyone from OLPC know why yet?
> 
> What are the settings of CR0 and CR4 on kernel entry on XO-1.5?


CR0 is 0x80000011
CR4 is 0x10

> 
> 	-hpa
> 
> 
> _______________________________________________
> Techteam mailing list
> Techteam@...ts.laptop.org
> http://lists.laptop.org/listinfo/techteam
> 
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