linux-kernel - Re: [PATCH 3/5] vhost: support upto 509 memory regions

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Message-ID: <55829775.7030201@redhat.com>
Date:	Thu, 18 Jun 2015 12:03:33 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>,
	Igor Mammedov <imammedo@...hat.com>
CC:	linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH 3/5] vhost: support upto 509 memory regions



On 18/06/2015 11:50, Michael S. Tsirkin wrote:
> > But lets assume that there are tools that do this so
> > how about instead of hardcoding limit make it a module parameter
> > with default set to 64. That would allow users to set higher limit
> > if they need it and nor regress old tools. it will also give tools
> > interface for reading limit from vhost module.
> 
> And now you need to choose between security and functionality :(

Don't call "security" a 16K allocation that can fall back to vmalloc
please.  That's an insult to actual security problems...

Paolo
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