From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Levon Subject: bimodal PAE and compatibility Date: Mon, 8 Jan 2007 14:49:32 +0000 Message-ID: <20070108144932.GA1557@totally.trollied.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org We currently ship a PAE 32-bit domU that we can trivially make bimodal, except that if we set it to "bimodal", then older Xens will default to thinking the domU is not PAE: 353 dsi->pae_kernel = PAEKERN_no; 354 if ( dsi->__elfnote_section ) 355 { 356 p = xen_elfnote_string(dsi, XEN_ELFNOTE_PAE_MODE); 357 if ( p != NULL && strncmp(p, "yes", 3) == 0 ) 358 dsi->pae_kernel = PAEKERN_extended_cr3; Could we have a new note instead? thanks john