Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751651AbbEJTOA (ORCPT ); Sun, 10 May 2015 15:14:00 -0400 Received: from mail-lb0-f172.google.com ([209.85.217.172]:36154 "EHLO mail-lb0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751238AbbEJTN7 (ORCPT ); Sun, 10 May 2015 15:13:59 -0400 From: Alexander Kuleshov To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" Cc: linux-kernel@vger.kernel.org, Greg Kroah-Hartman , Borislav Petkov , Andy Shevchenko , Mark Rustad , Yinghai Lu , Alexander Kuleshov Subject: [PATCH 0/2] x86/earlyprintk: setup earlyprintk as early as possible Date: Mon, 11 May 2015 01:13:45 +0600 Message-Id: <1431285225-5666-1-git-send-email-kuleshovmail@gmail.com> X-Mailer: git-send-email 2.4.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1459 Lines: 36 As setup_early_printk passed to the early_param, it will be usable only after 'parse_early_param' function will be called from the 'setup_arch'. So we have earlyprintk during early boot and decompression. Next point after decompression of the kernel where we can use early_printk is after call of the 'parse_early_param'. These patchset provides two patches where: 1. Move handling of the builtin command line to the separate function from the setup_arch. Now we can call it from the arch/x86/kernel/head{32,64}.c, and find 'earlyprintk' kernel command line paramter there. 2. Provide setup_serial_console function to setup serial earlyprintk in the arch/x86/kernel/head{32,64}.c Alexander Kuleshov (2): x86/setup: update boot_command_line with builtin_cmdline in separate function x86/earlyprintk: setup earlyprintk as early as possible arch/x86/include/asm/serial.h | 2 ++ arch/x86/include/asm/setup.h | 3 ++- arch/x86/kernel/early_printk.c | 25 +++++++++++++++++++++++++ arch/x86/kernel/head32.c | 6 ++++++ arch/x86/kernel/head64.c | 7 +++++++ arch/x86/kernel/setup.c | 28 +++++++++++++++------------- 6 files changed, 57 insertions(+), 14 deletions(-) -- 2.4.0 -- 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/