Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751328AbWEZJCU (ORCPT ); Fri, 26 May 2006 05:02:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751329AbWEZJCU (ORCPT ); Fri, 26 May 2006 05:02:20 -0400 Received: from wr-out-0506.google.com ([64.233.184.228]:15904 "EHLO wr-out-0506.google.com") by vger.kernel.org with ESMTP id S1751328AbWEZJCT convert rfc822-to-8bit (ORCPT ); Fri, 26 May 2006 05:02:19 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=OE0vReAjDPYz5tKqA4iAlDE3EdgVDheqXNTXH7sa2s4PrJ9oramlNicCX+PFB7quOD1OrQQ1w5BIRlCbWCt/VcpTzl6Lyy34Q4KNujZJ9jEyWzV/fwQZXWQNY/fnh5orZ1QS6XRY5FAq8i66f0AztjjOf2nwOdhqNuNCimmagQ8= Message-ID: Date: Fri, 26 May 2006 18:02:19 +0900 From: "Magnus Damm" To: "Gerd Hoffmann" Subject: Re: [Fastboot] [PATCH 03/03] kexec: Avoid overwriting the current pgd (V2, x86_64) Cc: "Magnus Damm" , "Andrew Morton" , fastboot@lists.osdl.org, "Eric W. Biederman" , linux-kernel@vger.kernel.org In-Reply-To: <4476B0F6.2000708@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: <20060524044232.14219.68240.sendpatchset@cherry.local> <20060524044247.14219.13579.sendpatchset@cherry.local> <1148545616.5793.180.camel@localhost> <4476B0F6.2000708@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 688 Lines: 18 On 5/26/06, Gerd Hoffmann wrote: > > 1a. The C-code in xen_machine_kexec() performs a hypercall. > > > > 1b. The hypervisor jumps to the assembly code. > > After prepare we've created a NX-safe mapping for the control page. We > > jump to that NX-safe address to transfer control to the assembly code. > > This is about kexec'ing the physical machine, not the virtual machine, > right? Correct, kexec:ing from dom0. / magnus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/