linux-kernel - [PATCH v11 5/5] x86/earlyprintk: Patch for testing earlyprintk

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Date:	Tue,  9 Jun 2015 17:11:58 +0600
From:	Alexander Kuleshov <kuleshovmail@...il.com>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>
Cc:	Alexander Kuleshov <kuleshovmail@...il.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Borislav Petkov <bp@...e.de>,
	Mark Rustad <mark.d.rustad@...el.com>,
	Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH v11 5/5] x86/earlyprintk: Patch for testing earlyprintk

Signed-off-by: Alexander Kuleshov <kuleshovmail@...il.com>
---
 arch/x86/kernel/head64.c | 1 +
 arch/x86/kernel/setup.c  | 1 +
 init/main.c              | 2 +-
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 041be2c..1d1d167 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -204,5 +204,6 @@ void __init x86_64_start_reservations(char *real_mode_data)
 
 	reserve_ebda_region();
 
+	early_printk("Go on the start_kernel\n");
 	start_kernel();
 }
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index edfdb6a..22e8f39 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -876,6 +876,7 @@ void __init setup_builtin_cmdline(void)
 
 void __init setup_arch(char **cmdline_p)
 {
+	early_printk("Now setup arch is working\n");
 	memblock_reserve(__pa_symbol(_text),
 			 (unsigned long)__bss_stop - (unsigned long)_text);
 
diff --git a/init/main.c b/init/main.c
index 2115055..79087b8 100644
--- a/init/main.c
+++ b/init/main.c
@@ -493,7 +493,7 @@ asmlinkage __visible void __init start_kernel(void)
 {
 	char *command_line;
 	char *after_dashes;
-
+	early_printk("start_kernel function started to work\n");
 	/*
 	 * Need to run as early as possible, to initialize the
 	 * lockdep hash:
-- 
2.4.0.GIT

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