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| author | Ben Collins <ben.collins@canonical.com> | 2008-06-18 14:04:35 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-03 14:34:02 +0200 |
| commit | 6bcb13b35a2ea39be6c7cc0292b8ad1191b1a748 (patch) | |
| tree | 6c8238b6ef74c3606a987b62e9e53466afb67fd4 /arch | |
| parent | 2ee2394b682c0ee99b0f083abe6c57727e6edb69 (diff) | |
| download | linux-6bcb13b35a2ea39be6c7cc0292b8ad1191b1a748.tar.gz linux-6bcb13b35a2ea39be6c7cc0292b8ad1191b1a748.tar.bz2 linux-6bcb13b35a2ea39be6c7cc0292b8ad1191b1a748.zip | |
x86: config option to disable info from decompression of the kernel
This patch allows the disabling of decompression messages during
x86 bootup.
Signed-off-by: Ben Collins <ben.collins@canonical.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/Kconfig.debug | 8 | ||||
| -rw-r--r-- | arch/x86/boot/compressed/misc.c | 16 |
2 files changed, 19 insertions, 5 deletions
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index ac1e31ba4795..14abaa519221 100644 --- a/arch/x86/Kconfig.debug +++ b/arch/x86/Kconfig.debug @@ -16,6 +16,14 @@ config NONPROMISC_DEVMEM obviously disasterous, but specific access can be used by people debugging the kernel. +config X86_VERBOSE_BOOTUP + bool "Enable verbose x86 bootup info messages" + default y + help + Enables the informational output from the decompression stage + (e.g. bzImage) of the boot. If you disable this you will still + see errors. Disable this if you want silent bootup. + config EARLY_PRINTK bool "Early printk" if EMBEDDED default y diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c index d10e7274e1fc..11629e903aa5 100644 --- a/arch/x86/boot/compressed/misc.c +++ b/arch/x86/boot/compressed/misc.c @@ -202,7 +202,8 @@ static void free(void *where); static void *memset(void *s, int c, unsigned n); static void *memcpy(void *dest, const void *src, unsigned n); -static void putstr(const char *); +static void __putstr(int, const char *); +#define putstr(__x) __putstr(0, __x) #ifdef CONFIG_X86_64 #define memptr long @@ -266,11 +267,16 @@ static void scroll(void) vidmem[i] = ' '; } -static void putstr(const char *s) +static void __putstr(int error, const char *s) { int x, y, pos; char c; +#ifndef CONFIG_X86_VERBOSE_BOOTUP + if (!error) + return; +#endif + #ifdef CONFIG_X86_32 if (real_mode->screen_info.orig_video_mode == 0 && lines == 0 && cols == 0) @@ -363,9 +369,9 @@ static void flush_window(void) static void error(char *x) { - putstr("\n\n"); - putstr(x); - putstr("\n\n -- System halted"); + __putstr(1, "\n\n"); + __putstr(1, x); + __putstr(1, "\n\n -- System halted"); while (1) asm("hlt"); |