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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20090622094013.GD5139@amd.com>
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

-- 
           | Advanced Micro Devices GmbH
 Operating | Karl-Hammerschmidt-Str. 34, 85609 Dornach bei München
 System    | 
 Research  | Geschäftsführer: Thomas M. McCoy, Giuliano Meroni
 Center    | Sitz: Dornach, Gemeinde Aschheim, Landkreis München
           | Registergericht München, HRB Nr. 43632

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