diff options
Diffstat (limited to 'arch/x86/kernel/setup.c')
| -rw-r--r-- | arch/x86/kernel/setup.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index c3a606c41ce0..b176f2b1f45d 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -113,6 +113,7 @@ #endif #include <asm/mce.h> #include <asm/alternative.h> +#include <asm/prom.h> /* * end_pfn only includes RAM, while max_pfn_mapped includes all e820 entries. @@ -453,16 +454,30 @@ static void __init parse_setup_data(void) return; pa_data = boot_params.hdr.setup_data; while (pa_data) { - data = early_memremap(pa_data, PAGE_SIZE); + u32 data_len, map_len; + + map_len = max(PAGE_SIZE - (pa_data & ~PAGE_MASK), + (u64)sizeof(struct setup_data)); + data = early_memremap(pa_data, map_len); + data_len = data->len + sizeof(struct setup_data); + if (data_len > map_len) { + early_iounmap(data, map_len); + data = early_memremap(pa_data, data_len); + map_len = data_len; + } + switch (data->type) { case SETUP_E820_EXT: - parse_e820_ext(data, pa_data); + parse_e820_ext(data); + break; + case SETUP_DTB: + add_dtb(pa_data); break; default: break; } pa_data = data->next; - early_iounmap(data, PAGE_SIZE); + early_iounmap(data, map_len); } } @@ -1030,8 +1045,8 @@ void __init setup_arch(char **cmdline_p) * Read APIC and some other early information from ACPI tables. */ acpi_boot_init(); - sfi_init(); + x86_dtb_init(); /* * get boot-time SMP configuration: @@ -1065,6 +1080,8 @@ void __init setup_arch(char **cmdline_p) #endif x86_init.oem.banner(); + x86_init.timers.wallclock_init(); + mcheck_init(); local_irq_save(flags); |