From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: [PATCH] xen: Pack some hvmop memory structures better Date: Fri, 04 Feb 2011 17:24:20 +0100 Message-ID: <4D4C2834.9070204@redhat.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: George Dunlap Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On 02/04/2011 04:28 PM, George Dunlap wrote: > Some of the hvmop memory structures have a shocking amount of unnecesssary > padding in them. Elements which can have only 3 values are given 64 bits of > memory, and then aligned (so that there is padding behind them). > > This patch resizes and reorganizes in the following way, (hopefully) without > introducing any differences between the layout for 32- and 64-bit. Am I missing something glaring, or this is breaking the ABI between hypervisor and kernels? Paolo