From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: [PATCH][RFC] sub-page anonymous domain memory allocator Date: Fri, 29 Aug 2008 19:18:43 +0100 Message-ID: References: <2dac25a9-af17-445b-8a45-e055d8ebf71c@default> Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <2dac25a9-af17-445b-8a45-e055d8ebf71c@default> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Daniel Magenheimer , xen-devel mailing list List-Id: xen-devel@lists.xenproject.org You can more simply just have the existing xmalloc interface go at alloc_domheap_pages(NULL) on x86/64. That would just need some #ifdef abstraction within xmalloc.c. -- Keir On 29/8/08 18:12, "Daniel Magenheimer" wrote: > This patch uses some #define-and-Makefile trickery to completely > leverage common/xmalloc.c to provide a sub-page memory > allocator that takes memory from anonymous domain heap instead > of xen heap. Note that it is useful only on a 64-bit hypervisor. > (Some other #define trickery can be used so that 32-bit > hypervisor uses xenheap and 64-bit hypervisor uses adheap.) > > Keir says that a goal for 3.4 is to combine xen heap and > domain heap on 64-bit hypervisors. This is a step in that > direction that I am using today in some work that requires > more memory than xenheap can provide (which I'll hopefully > post sometime in the next few weeks). > > Comments? > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel