From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752001AbaHDDq5 (ORCPT ); Sun, 3 Aug 2014 23:46:57 -0400 Received: from mail.windriver.com ([147.11.1.11]:44159 "EHLO mail.windriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751360AbaHDDqz (ORCPT ); Sun, 3 Aug 2014 23:46:55 -0400 Message-ID: <53DF0204.6000904@windriver.com> Date: Mon, 4 Aug 2014 11:46:12 +0800 From: "Yang,Wei" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.0 MIME-Version: 1.0 To: , CC: , Subject: Re: [PATCH v1] MIPS:KDUMP: set a right value to kexec_indirection_page variable References: <1406806949-27039-1-git-send-email-Wei.Yang@windriver.com> In-Reply-To: <1406806949-27039-1-git-send-email-Wei.Yang@windriver.com> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [128.224.162.170] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ping. BR, Wei On 07/31/2014 07:42 PM, Wei.Yang@windriver.com wrote: > From: Yang Wei > > Since there is not indirection page in crash type, so the vaule of the head > field of kimage structure is not equal to the address of indirection page but > IND_DONE. so we have to set kexec_indirection_page variable to the address of > the head field of image structure. > > Signed-off-by: Yang Wei > > Hi Ralf, > > Please help me take a look at this patch, I have already verified it on Cavium 6100EVB board. > > Thanks > Wei > --- > arch/mips/kernel/machine_kexec.c | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) > > diff --git a/arch/mips/kernel/machine_kexec.c b/arch/mips/kernel/machine_kexec.c > index 992e184..531b70d 100644 > --- a/arch/mips/kernel/machine_kexec.c > +++ b/arch/mips/kernel/machine_kexec.c > @@ -71,8 +71,13 @@ machine_kexec(struct kimage *image) > kexec_start_address = > (unsigned long) phys_to_virt(image->start); > > - kexec_indirection_page = > - (unsigned long) phys_to_virt(image->head & PAGE_MASK); > + if (image->type == KEXEC_TYPE_DEFAULT) { > + kexec_indirection_page = > + (unsigned long) phys_to_virt(image->head & PAGE_MASK); > + } else { > + kexec_indirection_page = (unsigned long)&image->head; > + } > + > > memcpy((void*)reboot_code_buffer, relocate_new_kernel, > relocate_new_kernel_size);