diff options
Diffstat (limited to 'arch/x86/kernel/setup.c')
| -rw-r--r-- | arch/x86/kernel/setup.c | 74 |
1 files changed, 13 insertions, 61 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index b3143bc74e6c..c3050af9306d 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -298,6 +298,9 @@ static void __init init_gbpages(void) static inline void init_gbpages(void) { } +static void __init cleanup_highmap(void) +{ +} #endif static void __init reserve_brk(void) @@ -616,28 +619,6 @@ void __init reserve_standard_io_resources(void) } -/* - * Note: elfcorehdr_addr is not just limited to vmcore. It is also used by - * is_kdump_kernel() to determine if we are booting after a panic. Hence - * ifdef it under CONFIG_CRASH_DUMP and not CONFIG_PROC_VMCORE. - */ - -#ifdef CONFIG_CRASH_DUMP -/* elfcorehdr= specifies the location of elf core header - * stored by the crashed kernel. This option will be passed - * by kexec loader to the capture kernel. - */ -static int __init setup_elfcorehdr(char *arg) -{ - char *end; - if (!arg) - return -EINVAL; - elfcorehdr_addr = memparse(arg, &end); - return end > arg ? 0 : -EINVAL; -} -early_param("elfcorehdr", setup_elfcorehdr); -#endif - static __init void reserve_ibft_region(void) { unsigned long addr, size = 0; @@ -695,15 +676,6 @@ static int __init parse_reservelow(char *p) early_param("reservelow", parse_reservelow); -static u64 __init get_max_mapped(void) -{ - u64 end = max_pfn_mapped; - - end <<= PAGE_SHIFT; - - return end; -} - /* * Determine if we were loaded by an EFI loader. If so, then we have also been * passed the efi memmap, systab, etc., so we should use these data structures @@ -719,10 +691,6 @@ static u64 __init get_max_mapped(void) void __init setup_arch(char **cmdline_p) { - int acpi = 0; - int amd = 0; - unsigned long flags; - #ifdef CONFIG_X86_32 memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data)); visws_early_detect(); @@ -937,6 +905,8 @@ void __init setup_arch(char **cmdline_p) */ reserve_brk(); + cleanup_highmap(); + memblock.current_limit = get_max_mapped(); memblock_x86_fill(); @@ -950,15 +920,8 @@ void __init setup_arch(char **cmdline_p) printk(KERN_DEBUG "initial memory mapped : 0 - %08lx\n", max_pfn_mapped<<PAGE_SHIFT); - reserve_trampoline_memory(); + setup_trampolines(); -#ifdef CONFIG_ACPI_SLEEP - /* - * Reserve low memory region for sleep support. - * even before init_memory_mapping - */ - acpi_reserve_wakeup_memory(); -#endif init_gbpages(); /* max_pfn_mapped is updated here */ @@ -999,19 +962,7 @@ void __init setup_arch(char **cmdline_p) early_acpi_boot_init(); -#ifdef CONFIG_ACPI_NUMA - /* - * Parse SRAT to discover nodes. - */ - acpi = acpi_numa_init(); -#endif - -#ifdef CONFIG_AMD_NUMA - if (!acpi) - amd = !amd_numa_init(0, max_pfn); -#endif - - initmem_init(0, max_pfn, acpi, amd); + initmem_init(); memblock_find_dma_reserve(); dma32_reserve_bootmem(); @@ -1023,6 +974,11 @@ void __init setup_arch(char **cmdline_p) paging_init(); x86_init.paging.pagetable_setup_done(swapper_pg_dir); + if (boot_cpu_data.cpuid_level >= 0) { + /* A CPU has %cr4 if and only if it has CPUID */ + mmu_cr4_features = read_cr4(); + } + #ifdef CONFIG_X86_32 /* sync back kernel address range */ clone_pgd_range(initial_page_table + KERNEL_PGD_BOUNDARY, @@ -1055,9 +1011,7 @@ void __init setup_arch(char **cmdline_p) prefill_possible_map(); -#ifdef CONFIG_X86_64 init_cpu_to_node(); -#endif init_apic_mappings(); ioapic_and_gsi_init(); @@ -1085,9 +1039,7 @@ void __init setup_arch(char **cmdline_p) mcheck_init(); - local_irq_save(flags); - arch_init_ideal_nop5(); - local_irq_restore(flags); + arch_init_ideal_nops(); } #ifdef CONFIG_X86_32 |