linux-kernel - Re: [PATCH 0/8 v3] KVM support for 1GB pages

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Date:	Mon, 22 Jun 2009 11:40:13 +0200
From:	Joerg Roedel <joerg.roedel@....com>
To:	Avi Kivity <avi@...hat.com>
CC:	Marcelo Tosatti <marcelo@...ck.org>, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/8 v3] KVM support for 1GB pages

On Sat, Jun 20, 2009 at 02:03:22PM +0300, Avi Kivity wrote:
> On 06/19/2009 04:16 PM, Joerg Roedel wrote:
>> Hi,
>>
>> this is the third version of the patches for KVM to support 1GB pages. Changes
>> to the last version include:
>>
>> 	- changed reporting of 1GB page support to userspace to use
>> 	  SUPPORTED_CPUID ioctl
>> 	- added support for 1GB pages to the software page walker code too
>>
>> This code still only can make use of 1GB pages with nested paging enabled. I
>> will give the shadow paging code another debug round soon. Please comment or
>> consider to apply these patches.
>>
>>    
>
> Can you describe how the code fails with shadow paging?

After the rework it even fails to boot a guest with gbpages enabled. This week
is a bit tight but I will debug this further next week.

Joerg

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