From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755968Ab3LDCrH (ORCPT ); Tue, 3 Dec 2013 21:47:07 -0500 Received: from mx1.redhat.com ([209.132.183.28]:2038 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752764Ab3LDCrE (ORCPT ); Tue, 3 Dec 2013 21:47:04 -0500 Date: Wed, 4 Dec 2013 10:46:10 +0800 From: Dave Young To: Toshi Kani Cc: Borislav Petkov , linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, x86@kernel.org, mjg59@srcf.ucam.org, hpa@zytor.com, James.Bottomley@HansenPartnership.com, vgoyal@redhat.com, ebiederm@xmission.com, horms@verge.net.au, kexec@lists.infradead.org, greg@kroah.com, matt@console-pimps.org Subject: Re: [PATCH v4 07/12] efi: passing kexec necessary efi data via setup_data Message-ID: <20131204024610.GA3764@dhcp-16-126.nay.redhat.com> References: <1385445477-9665-1-git-send-email-dyoung@redhat.com> <1385445477-9665-8-git-send-email-dyoung@redhat.com> <20131127140732.GD32267@pd.tnic> <20131129091415.GH4186@dhcp-16-126.nay.redhat.com> <1386023600.1791.201.camel@misato.fc.hp.com> <1386034289.1791.210.camel@misato.fc.hp.com> <20131203015613.GB3980@dhcp-16-126.nay.redhat.com> <1386085140.1791.218.camel@misato.fc.hp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1386085140.1791.218.camel@misato.fc.hp.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Toshi > Oh, I think I now understand what the issue was. The z420 firmware > updates the SMBIOS table address in the EFI system table to a virtual > address after calling EFI SetVirtualAddressMap. So, you are passing the > original physical address of the SMBIOS table from the 1st kernel to the > 2nd kernel to put it back to physical. Is that right? Right. Thanks Dave