From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47777) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VZnYi-0002G1-04 for qemu-devel@nongnu.org; Fri, 25 Oct 2013 16:00:42 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VZnYb-0003WJ-Qc for qemu-devel@nongnu.org; Fri, 25 Oct 2013 16:00:35 -0400 Received: from mx1.redhat.com ([209.132.183.28]:37307) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VZnYb-0003Vu-Az for qemu-devel@nongnu.org; Fri, 25 Oct 2013 16:00:29 -0400 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r9PK0QhB022974 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Fri, 25 Oct 2013 16:00:27 -0400 Date: Fri, 25 Oct 2013 17:50:32 -0200 From: Marcelo Tosatti Message-ID: <20131025195032.GA6391@amt.cnet> References: <20131024211158.064049176@amt.cnet> <20131024211249.723543071@amt.cnet> <5269B378.6040409@redhat.com> <20131025045805.GA18280@amt.cnet> <526A3152.2020603@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <526A3152.2020603@redhat.com> Subject: Re: [Qemu-devel] [patch 2/2] i386: pc: align gpa<->hpa on 1GB boundary List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini Cc: aarcange@redhat.com, qemu-devel@nongnu.org, gleb@redhat.com On Fri, Oct 25, 2013 at 09:52:34AM +0100, Paolo Bonzini wrote: > Because offsets are zero, and lengths match the RAM block lengths, you > do not need any complication with aliasing. This still has to be done > only for new machine types. Not possible because you just wasted holesize bytes (if number of additional bytes due to huge page alignment is smaller than holesize, a new hugepage is required, which is not acceptable). Is there a tree the new machine types can live until 1.8 opens up? Can you pick up the MAP_POPULATE patch?