From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx1.redhat.com ([209.132.183.28]) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WGQ1A-0007LI-MW for kexec@lists.infradead.org; Thu, 20 Feb 2014 09:34:09 +0000 From: WANG Chao Subject: [PATCH v2 0/4] kexec-tools, x86: E820 memmap pass for kdump Date: Thu, 20 Feb 2014 17:28:28 +0800 Message-Id: <1392888512-4473-1-git-send-email-chaowang@redhat.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=twosheds.infradead.org@lists.infradead.org To: horms@verge.net.au, vgoyal@redhat.com, ebiederm@xmission.com, hpa@zytor.com, trenn@suse.de, dyoung@redhat.com Cc: kexec@lists.infradead.org Hi, All When kaslr comes in and kdump is broken, it seems about the right time to use E820 instead of memmap=exactmap to pass memmap for kdump for the default memmap passing mechanism: http://lists.infradead.org/pipermail/kexec/2014-February/011048.html Unfortunately, saved_max_pfn still got its user out there (calgry pci, it looks like the only one). So for backward compatibility, I'm introducing a new option --pass-memmap-cmdline to force kexec-tools to pass memmap=exactmap, the old way. Any comment is appreciate! v1->v2: Vivek: - Use function instead of macro for dbgprint_mem_range - Do not pass reserved memory range for kdump. It could addressed later separately. WANG Chao (4): cleanup: add dbgprint_mem_range function x86: Store memory ranges globally used for crash kernel to boot into x86: add --pass-memmap-cmdline option x86: Pass memory range via E820 for kdump kexec/arch/i386/crashdump-x86.c | 157 ++++++++++++++------------ kexec/arch/i386/crashdump-x86.h | 6 +- kexec/arch/i386/include/arch/options.h | 2 + kexec/arch/i386/kexec-x86-common.c | 6 +- kexec/arch/i386/kexec-x86.c | 4 + kexec/arch/i386/kexec-x86.h | 1 + kexec/arch/i386/x86-linux-setup.c | 195 ++++++++++++++++++++++++--------- kexec/arch/i386/x86-linux-setup.h | 1 + kexec/arch/x86_64/kexec-x86_64.c | 5 + kexec/kexec.c | 10 ++ kexec/kexec.h | 1 + 11 files changed, 259 insertions(+), 129 deletions(-) -- 1.8.5.3 _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec