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Re: [Xen-devel] 3GB memory restriction for pv domU with PCI

To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] 3GB memory restriction for pv domU with PCI
From: Bruce Edge <bruce.edge@xxxxxxxxx>
Date: Wed, 13 Oct 2010 17:10:32 -0700
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
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On Fri, Jun 11, 2010 at 9:42 AM, Konrad Rzeszutek Wilk
<konrad.wilk@xxxxxxxxxx> wrote:
> On Fri, Jun 11, 2010 at 08:54:05AM -0700, Bruce Edge wrote:
>> On Fri, Jun 11, 2010 at 6:38 AM, Konrad Rzeszutek Wilk
>> <konrad.wilk@xxxxxxxxxx> wrote:
>> > On Fri, Jun 11, 2010 at 09:09:36AM +0300, Pasi Kärkkäinen wrote:
>> >> On Thu, Jun 10, 2010 at 04:25:54PM -0700, Bruce Edge wrote:
>> >> > Here's the domU boot log:
>> >> >         memory       = 4096
>> >
>> > And also there is a bug where we can't do PCI in PV guests when guest
>> > has more than 3GB.
>> >
>> Is there any expectation that this 3GB restriction will be resolved in
>> the short term ?
> What is "short-term" ? This week = no. This month = likely.

It looks like this is still a restriction. Is there any plan to allow
pvops domU's to use more than 4GB ?

How much and who do we have to pay to get it in sooner?
If this ends up being our only show stopper for pvops, I'll start
selling lab equipment out the back door to pay for it. :-)


>> Does anyone have any pointers to the specific problem ?
> http://old.nabble.com/-PATCH-More-PCIFront--td26273977.html
> http://lists.xensource.com/archives/html/xen-devel/2009-12/msg01112.html

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