From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from terminus.zytor.com ([2001:1868:205::10] helo=mail.zytor.com) by casper.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1ToN1s-0001kP-2a for kexec@lists.infradead.org; Thu, 27 Dec 2012 23:38:25 +0000 Message-ID: <50DCDBD3.1020703@zytor.com> Date: Thu, 27 Dec 2012 15:37:55 -0800 From: "H. Peter Anvin" MIME-Version: 1.0 Subject: Re: [PATCH v3 06/11] x86/xen: Add i386 kexec/kdump implementation References: <5698071f-c96c-4891-81d6-a77c4e3b77c2@default> In-Reply-To: <5698071f-c96c-4891-81d6-a77c4e3b77c2@default> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: kexec-bounces@lists.infradead.org Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Daniel Kiper Cc: xen-devel@lists.xensource.com, konrad.wilk@oracle.com, andrew.cooper3@citrix.com, x86@kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, mingo@redhat.com, ebiederm@xmission.com, jbeulich@suse.com, maxim.uvarov@oracle.com, tglx@linutronix.de, vgoyal@redhat.com On 12/27/2012 03:23 PM, Daniel Kiper wrote: >> On 12/26/2012 06:18 PM, Daniel Kiper wrote: >>> Add i386 kexec/kdump implementation. >>> >>> v2 - suggestions/fixes: >>> - allocate transition page table pages below 4 GiB >>> (suggested by Jan Beulich). >> >> Why? > > Sadly all addresses are passed via unsigned long > variable to kexec hypercall. > So can you unf*ck your broken interface before imposing it on anyone else? -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: [PATCH v3 06/11] x86/xen: Add i386 kexec/kdump implementation Date: Thu, 27 Dec 2012 15:37:55 -0800 Message-ID: <50DCDBD3.1020703@zytor.com> References: <5698071f-c96c-4891-81d6-a77c4e3b77c2@default> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <5698071f-c96c-4891-81d6-a77c4e3b77c2@default> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: Daniel Kiper Cc: xen-devel@lists.xensource.com, konrad.wilk@oracle.com, andrew.cooper3@citrix.com, x86@kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, mingo@redhat.com, ebiederm@xmission.com, jbeulich@suse.com, maxim.uvarov@oracle.com, tglx@linutronix.de, vgoyal@redhat.com List-Id: virtualization@lists.linuxfoundation.org On 12/27/2012 03:23 PM, Daniel Kiper wrote: >> On 12/26/2012 06:18 PM, Daniel Kiper wrote: >>> Add i386 kexec/kdump implementation. >>> >>> v2 - suggestions/fixes: >>> - allocate transition page table pages below 4 GiB >>> (suggested by Jan Beulich). >> >> Why? > > Sadly all addresses are passed via unsigned long > variable to kexec hypercall. > So can you unf*ck your broken interface before imposing it on anyone else? -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752414Ab2L0Xik (ORCPT ); Thu, 27 Dec 2012 18:38:40 -0500 Received: from terminus.zytor.com ([198.137.202.10]:59500 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751974Ab2L0Xih (ORCPT ); Thu, 27 Dec 2012 18:38:37 -0500 Message-ID: <50DCDBD3.1020703@zytor.com> Date: Thu, 27 Dec 2012 15:37:55 -0800 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Thunderbird/17.0 MIME-Version: 1.0 To: Daniel Kiper CC: kexec@lists.infradead.org, xen-devel@lists.xensource.com, konrad.wilk@oracle.com, tglx@linutronix.de, ebiederm@xmission.com, maxim.uvarov@oracle.com, andrew.cooper3@citrix.com, jbeulich@suse.com, mingo@redhat.com, x86@kernel.org, virtualization@lists.linux-foundation.org, vgoyal@redhat.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 06/11] x86/xen: Add i386 kexec/kdump implementation References: <5698071f-c96c-4891-81d6-a77c4e3b77c2@default> In-Reply-To: <5698071f-c96c-4891-81d6-a77c4e3b77c2@default> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/27/2012 03:23 PM, Daniel Kiper wrote: >> On 12/26/2012 06:18 PM, Daniel Kiper wrote: >>> Add i386 kexec/kdump implementation. >>> >>> v2 - suggestions/fixes: >>> - allocate transition page table pages below 4 GiB >>> (suggested by Jan Beulich). >> >> Why? > > Sadly all addresses are passed via unsigned long > variable to kexec hypercall. > So can you unf*ck your broken interface before imposing it on anyone else? -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.