From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paul Brook <paul@codesourcery.com>
Subject: Re: [Qemu-devel] [PATCH 4/4] Reallocate dma buffers in read/write path if needed
Date: Sat, 4 Oct 2008 00:17:08 +0100
Message-ID: <200810040017.09081.paul@codesourcery.com>
References: <1223071531-31817-1-git-send-email-ryanh@us.ibm.com> <1223071531-31817-5-git-send-email-ryanh@us.ibm.com>
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Cc: Ryan Harper <ryanh@us.ibm.com>,
	Anthony Liguori <aliguori@us.ibm.com>, kvm@vger.kernel.org
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On Friday 03 October 2008, Ryan Harper wrote:
> The default buffer size breaks up larger read/write requests unnecessarily.
> When we encounter requests larger than the default dma buffer, reallocate
> the buffer to support the request.

Allocating unboundedly large host buffers based on guest input seems like a 
bad idea.

Paul