diff options
| author | Huang, Ying <ying.huang@intel.com> | 2008-03-28 10:49:44 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-26 21:34:42 +0200 |
| commit | 8b664aa66e824a0ddf4ec56d41fa0cf7bb374de6 (patch) | |
| tree | 57c5de72c38f630e126964b922c379c4a7e49100 /arch/x86/kernel/setup_64.c | |
| parent | 50eae2a7c9862afe263a2003c12f457ecfc9e6a2 (diff) | |
x86, boot: add linked list of struct setup_data
This patch adds a field of 64-bit physical pointer to NULL terminated
single linked list of struct setup_data to real-mode kernel
header. This is used as a more extensible boot parameters passing
mechanism.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/setup_64.c')
| -rw-r--r-- | arch/x86/kernel/setup_64.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c index 17bdf2343095..e1a21d6b3671 100644 --- a/arch/x86/kernel/setup_64.c +++ b/arch/x86/kernel/setup_64.c @@ -264,6 +264,26 @@ void __attribute__((weak)) __init memory_setup(void) machine_specific_memory_setup(); } +static void __init parse_setup_data(void) +{ + struct setup_data *data; + unsigned long pa_data; + + if (boot_params.hdr.version < 0x0209) + return; + pa_data = boot_params.hdr.setup_data; + while (pa_data) { + data = early_ioremap(pa_data, PAGE_SIZE); + switch (data->type) { + default: + break; + } + free_early(pa_data, pa_data+sizeof(*data)+data->len); + pa_data = data->next; + early_iounmap(data, PAGE_SIZE); + } +} + /* * setup_arch - architecture-specific boot-time initializations * @@ -316,6 +336,8 @@ void __init setup_arch(char **cmdline_p) strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE); *cmdline_p = command_line; + parse_setup_data(); + parse_early_param(); #ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT |