From: Avi Kivity <avi@redhat.com>
To: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
LKML <linux-kernel@vger.kernel.org>,
kvm@vger.kernel.org
Subject: Re: [PATCH] kvm mmu: reduce 50% memory usage
Date: Fri, 30 Apr 2010 10:26:50 +0300 [thread overview]
Message-ID: <4BDA863A.9060702@redhat.com> (raw)
In-Reply-To: <4BDA3F9B.8040708@cn.fujitsu.com>
On 04/30/2010 05:25 AM, Lai Jiangshan wrote:
>
>> It's unrelated to TDP, same issue with shadow. I think the calculation
>> is correct. For example the 4th spte for a level=2 page will yield
>> gfn=4*512.
>>
> Avi, Marcelo
> Thank you very much.
>
> The calculation I used is correct.
>
Yes. btw, can you update the patch to also correct mmu.txt?
> The fault is comes from the FNAME(fetch) when using shadow page.
>
> I have fix it in the patch
> "[RFC PATCH] kvm: calculate correct gfn for small host pages which emulates large guest pages"
>
> (It seems that the mail lists is unreachable, did you receive it?)
>
The lists are down at the moment.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
next prev parent reply other threads:[~2010-04-30 17:21 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-28 11:57 [PATCH] kvm mmu: reduce 50% memory usage Lai Jiangshan
2010-04-28 13:01 ` Avi Kivity
2010-04-28 18:05 ` Marcelo Tosatti
2010-04-29 18:09 ` Marcelo Tosatti
2010-04-29 18:43 ` Avi Kivity
[not found] ` <4BDA3F9B.8040708@cn.fujitsu.com>
2010-04-30 7:26 ` Avi Kivity [this message]
[not found] ` <4BDA9AAC.6060303@cn.fujitsu.com>
2010-04-30 10:00 ` Avi Kivity
2010-04-30 15:44 ` Marcelo Tosatti
2010-05-06 7:03 ` Lai Jiangshan
2010-05-06 19:04 ` Marcelo Tosatti
2010-05-07 8:25 ` Lai Jiangshan
2010-05-07 20:14 ` Marcelo Tosatti
2010-05-26 8:48 ` [RESEND PATCH 2/3] kvm, tdp: calculate correct base gfn for non-DIR level Lai Jiangshan
2010-05-26 10:15 ` Avi Kivity
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