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Re: [Xen-devel] RE: Ballooning up

from [Jeremy Fitzhardinge] [Permanent Link][Original]
To: Jan Beulich <JBeulich@xxxxxxxxxx>
Subject: Re: [Xen-devel] RE: Ballooning up
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Tue, 14 Sep 2010 09:35:41 -0700
Cc: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, Xen-devel@xxxxxxxxxxxxxxxxxxx, Konrad Wilk <konrad.wilk@xxxxxxxxxx>, Daniel Kiper <dkiper@xxxxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
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 On 09/14/2010 01:41 AM, Jan Beulich wrote:
>  >>> On 14.09.10 at 00:51, Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:
>> I guess there are three options:
>>
>>    1. add a "xen_maxmem" (or something) kernel parameter to override
>>       space specified in the E820 table
> Isn't that what the (native) "mem=" option is intended for?

Good point, there's no need to add anything.

>>    3. only allow extra memory up to a certain ratio of the base memory
>>       (8x? 16x? 32x?)
> Enforcing a sane upper limit of the ratio (we use 32x currently)
> seems like a reasonable thing to do in any case.

OK, I'll do that.

    J

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