Loading arch/x86/kernel/cpu/Makefile +1 −1 Original line number Diff line number Diff line Loading @@ -6,7 +6,7 @@ obj-y := intel_cacheinfo.o addon_cpuid_features.o obj-y += proc.o feature_names.o obj-$(CONFIG_X86_32) += common.o bugs.o obj-$(CONFIG_X86_64) += bugs_64.o obj-$(CONFIG_X86_64) += common_64.o bugs_64.o obj-$(CONFIG_X86_32) += amd.o obj-$(CONFIG_X86_64) += amd_64.o obj-$(CONFIG_X86_32) += cyrix.o Loading arch/x86/kernel/setup_64.c→arch/x86/kernel/cpu/common_64.c +32 −449 Original line number Diff line number Diff line /* * Copyright (C) 1995 Linus Torvalds */ /* * This file handles the architecture-dependent parts of initialization */ #include <linux/errno.h> #include <linux/sched.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/stddef.h> #include <linux/unistd.h> #include <linux/ptrace.h> #include <linux/slab.h> #include <linux/user.h> #include <linux/screen_info.h> #include <linux/ioport.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/initrd.h> #include <linux/highmem.h> #include <linux/bootmem.h> #include <linux/string.h> #include <linux/delay.h> #include <linux/smp.h> #include <linux/module.h> #include <linux/percpu.h> #include <linux/bootmem.h> #include <asm/processor.h> #include <linux/console.h> #include <linux/seq_file.h> #include <linux/crash_dump.h> #include <linux/root_dev.h> #include <linux/pci.h> #include <asm/pci-direct.h> #include <linux/efi.h> #include <linux/acpi.h> #include <linux/kallsyms.h> #include <linux/edd.h> #include <linux/iscsi_ibft.h> #include <linux/mmzone.h> #include <linux/kexec.h> #include <linux/cpufreq.h> #include <linux/dmi.h> #include <linux/dma-mapping.h> #include <linux/ctype.h> #include <linux/sort.h> #include <linux/uaccess.h> #include <linux/init_ohci1394_dma.h> #include <linux/kvm_para.h> #include <asm/mtrr.h> #include <asm/uaccess.h> #include <asm/system.h> #include <asm/vsyscall.h> #include <asm/io.h> #include <asm/smp.h> #include <asm/i387.h> #include <asm/msr.h> #include <asm/desc.h> #include <video/edid.h> #include <asm/e820.h> #include <asm/mpspec.h> #include <asm/dma.h> #include <asm/gart.h> #include <asm/mpspec.h> #include <asm/io.h> #include <asm/mmu_context.h> #include <asm/proto.h> #include <asm/setup.h> #include <asm/numa.h> #include <asm/sections.h> #include <asm/dmi.h> #include <asm/cacheflush.h> #include <asm/mtrr.h> #include <asm/mce.h> #include <asm/ds.h> #include <asm/topology.h> #include <asm/trampoline.h> #include <asm/pat.h> #include <asm/numa.h> #ifdef CONFIG_X86_LOCAL_APIC #include <asm/mpspec.h> #include <asm/apic.h> #include <mach_apic.h> #ifdef CONFIG_PARAVIRT #include <asm/paravirt.h> #else #define ARCH_SETUP #endif /* * Machine setup.. */ struct cpuinfo_x86 boot_cpu_data __read_mostly; EXPORT_SYMBOL(boot_cpu_data); __u32 cleared_cpu_caps[NCAPINTS] __cpuinitdata; unsigned long mmu_cr4_features; /* Boot loader ID as an integer, for the benefit of proc_dointvec */ int bootloader_type; #include "cpu.h" unsigned long saved_video_mode; /* * Early DMI memory /* We need valid kernel segments for data and code in long mode too * IRET will check the segment types kkeil 2000/10/28 * Also sysret mandates a special GDT layout */ int dmi_alloc_index; char dmi_alloc_data[DMI_MAX_DATA]; /* The TLS descriptors are currently at a different place compared to i386. Hopefully nobody expects them at a fixed place (Wine?) */ DEFINE_PER_CPU(struct gdt_page, gdt_page) = { .gdt = { [GDT_ENTRY_KERNEL32_CS] = { { { 0x0000ffff, 0x00cf9b00 } } }, [GDT_ENTRY_KERNEL_CS] = { { { 0x0000ffff, 0x00af9b00 } } }, [GDT_ENTRY_KERNEL_DS] = { { { 0x0000ffff, 0x00cf9300 } } }, [GDT_ENTRY_DEFAULT_USER32_CS] = { { { 0x0000ffff, 0x00cffb00 } } }, [GDT_ENTRY_DEFAULT_USER_DS] = { { { 0x0000ffff, 0x00cff300 } } }, [GDT_ENTRY_DEFAULT_USER_CS] = { { { 0x0000ffff, 0x00affb00 } } }, } }; EXPORT_PER_CPU_SYMBOL_GPL(gdt_page); /* * Setup options */ struct screen_info screen_info; EXPORT_SYMBOL(screen_info); struct sys_desc_table_struct { unsigned short length; unsigned char table[0]; }; struct edid_info edid_info; EXPORT_SYMBOL_GPL(edid_info); extern int root_mountflags; static char __initdata command_line[COMMAND_LINE_SIZE]; static struct resource standard_io_resources[] = { { .name = "dma1", .start = 0x00, .end = 0x1f, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "pic1", .start = 0x20, .end = 0x21, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "timer0", .start = 0x40, .end = 0x43, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "timer1", .start = 0x50, .end = 0x53, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "keyboard", .start = 0x60, .end = 0x60, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "keyboard", .start = 0x64, .end = 0x64, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "dma page reg", .start = 0x80, .end = 0x8f, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "pic2", .start = 0xa0, .end = 0xa1, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "dma2", .start = 0xc0, .end = 0xdf, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "fpu", .start = 0xf0, .end = 0xff, .flags = IORESOURCE_BUSY | IORESOURCE_IO } }; #define IORESOURCE_RAM (IORESOURCE_BUSY | IORESOURCE_MEM) static struct resource data_resource = { .name = "Kernel data", .start = 0, .end = 0, .flags = IORESOURCE_RAM, }; static struct resource code_resource = { .name = "Kernel code", .start = 0, .end = 0, .flags = IORESOURCE_RAM, }; static struct resource bss_resource = { .name = "Kernel bss", .start = 0, .end = 0, .flags = IORESOURCE_RAM, }; static void __init early_cpu_init(void); static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c); #ifdef CONFIG_PROC_VMCORE /* 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 #ifndef CONFIG_NUMA static void __init contig_initmem_init(unsigned long start_pfn, unsigned long end_pfn) { unsigned long bootmap_size, bootmap; bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT; bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size, PAGE_SIZE); if (bootmap == -1L) panic("Cannot find bootmem map of size %ld\n", bootmap_size); bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn); e820_register_active_regions(0, start_pfn, end_pfn); free_bootmem_with_active_regions(0, end_pfn); early_res_to_bootmem(0, end_pfn<<PAGE_SHIFT); reserve_bootmem(bootmap, bootmap_size, BOOTMEM_DEFAULT); } #endif #if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE) struct edd edd; #ifdef CONFIG_EDD_MODULE EXPORT_SYMBOL(edd); #endif /** * copy_edd() - Copy the BIOS EDD information * from boot_params into a safe place. * */ static inline void copy_edd(void) { memcpy(edd.mbr_signature, boot_params.edd_mbr_sig_buffer, sizeof(edd.mbr_signature)); memcpy(edd.edd_info, boot_params.eddbuf, sizeof(edd.edd_info)); edd.mbr_signature_nr = boot_params.edd_mbr_sig_buf_entries; edd.edd_info_nr = boot_params.eddbuf_entries; } #else static inline void copy_edd(void) { } #endif /* Overridden in paravirt.c if CONFIG_PARAVIRT */ void __attribute__((weak)) __init memory_setup(void) { machine_specific_memory_setup(); } __u32 cleared_cpu_caps[NCAPINTS] __cpuinitdata; /* Current gdt points %fs at the "master" per-cpu area: after this, * it's on the real one. */ Loading @@ -242,235 +51,6 @@ void switch_to_new_gdt(void) load_gdt(&gdt_descr); } /* * setup_arch - architecture-specific boot-time initializations * * Note: On x86_64, fixmaps are ready for use even before this is called. */ void __init setup_arch(char **cmdline_p) { unsigned i; printk(KERN_INFO "Command line: %s\n", boot_command_line); ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev); screen_info = boot_params.screen_info; edid_info = boot_params.edid_info; saved_video_mode = boot_params.hdr.vid_mode; bootloader_type = boot_params.hdr.type_of_loader; #ifdef CONFIG_BLK_DEV_RAM rd_image_start = boot_params.hdr.ram_size & RAMDISK_IMAGE_START_MASK; rd_prompt = ((boot_params.hdr.ram_size & RAMDISK_PROMPT_FLAG) != 0); rd_doload = ((boot_params.hdr.ram_size & RAMDISK_LOAD_FLAG) != 0); #endif #ifdef CONFIG_EFI if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature, "EL64", 4)) { efi_enabled = 1; efi_reserve_early(); } #endif ARCH_SETUP setup_memory_map(); copy_edd(); if (!boot_params.hdr.root_flags) root_mountflags &= ~MS_RDONLY; init_mm.start_code = (unsigned long) &_text; init_mm.end_code = (unsigned long) &_etext; init_mm.end_data = (unsigned long) &_edata; init_mm.brk = (unsigned long) &_end; code_resource.start = virt_to_phys(&_text); code_resource.end = virt_to_phys(&_etext)-1; data_resource.start = virt_to_phys(&_etext); data_resource.end = virt_to_phys(&_edata)-1; bss_resource.start = virt_to_phys(&__bss_start); bss_resource.end = virt_to_phys(&__bss_stop)-1; early_cpu_init(); early_identify_cpu(&boot_cpu_data); strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE); *cmdline_p = command_line; parse_setup_data(); parse_early_param(); if (acpi_mps_check()) { disable_apic = 1; clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC); } #ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT if (init_ohci1394_dma_early) init_ohci1394_dma_on_all_controllers(); #endif finish_e820_parsing(); /* after parse_early_param, so could debug it */ insert_resource(&iomem_resource, &code_resource); insert_resource(&iomem_resource, &data_resource); insert_resource(&iomem_resource, &bss_resource); early_gart_iommu_check(); e820_register_active_regions(0, 0, -1UL); /* * partially used pages are not usable - thus * we are rounding upwards: */ end_pfn = e820_end_of_ram(); /* pre allocte 4k for mptable mpc */ early_reserve_e820_mpc_new(); /* update e820 for memory not covered by WB MTRRs */ mtrr_bp_init(); if (mtrr_trim_uncached_memory(end_pfn)) { remove_all_active_ranges(); e820_register_active_regions(0, 0, -1UL); end_pfn = e820_end_of_ram(); } num_physpages = end_pfn; check_efer(); max_pfn_mapped = init_memory_mapping(0, (end_pfn << PAGE_SHIFT)); if (efi_enabled) efi_init(); vsmp_init(); dmi_scan_machine(); io_delay_init(); #ifdef CONFIG_KVM_CLOCK kvmclock_init(); #endif /* * Initialize the ACPI boot-time table parser (gets the RSDP and SDT). * Call this early for SRAT node setup. */ acpi_boot_table_init(); /* How many end-of-memory variables you have, grandma! */ max_low_pfn = end_pfn; max_pfn = end_pfn; high_memory = (void *)__va(end_pfn * PAGE_SIZE - 1) + 1; /* Remove active ranges so rediscovery with NUMA-awareness happens */ remove_all_active_ranges(); #ifdef CONFIG_ACPI_NUMA /* * Parse SRAT to discover nodes. */ acpi_numa_init(); #endif #ifdef CONFIG_NUMA numa_initmem_init(0, end_pfn); #else contig_initmem_init(0, end_pfn); #endif dma32_reserve_bootmem(); #ifdef CONFIG_ACPI_SLEEP /* * Reserve low memory region for sleep support. */ acpi_reserve_bootmem(); #endif #ifdef CONFIG_X86_MPPARSE /* * Find and reserve possible boot-time SMP configuration: */ find_smp_config(); #endif #ifdef CONFIG_BLK_DEV_INITRD if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) { unsigned long ramdisk_image = boot_params.hdr.ramdisk_image; unsigned long ramdisk_size = boot_params.hdr.ramdisk_size; unsigned long ramdisk_end = ramdisk_image + ramdisk_size; unsigned long end_of_mem = end_pfn << PAGE_SHIFT; if (ramdisk_end <= end_of_mem) { /* * don't need to reserve again, already reserved early * in x86_64_start_kernel, and early_res_to_bootmem * convert that to reserved in bootmem */ initrd_start = ramdisk_image + PAGE_OFFSET; initrd_end = initrd_start+ramdisk_size; } else { free_bootmem(ramdisk_image, ramdisk_size); printk(KERN_ERR "initrd extends beyond end of memory " "(0x%08lx > 0x%08lx)\ndisabling initrd\n", ramdisk_end, end_of_mem); initrd_start = 0; } } #endif reserve_crashkernel(); reserve_ibft_region(); paging_init(); map_vsyscall(); early_quirks(); /* * Read APIC and some other early information from ACPI tables. */ acpi_boot_init(); init_cpu_to_node(); #ifdef CONFIG_X86_MPPARSE /* * get boot-time SMP configuration: */ if (smp_found_config) get_smp_config(); #endif init_apic_mappings(); ioapic_init_mappings(); kvm_guest_init(); /* * We trust e820 completely. No explicit ROM probing in memory. */ e820_reserve_resources(); e820_mark_nosave_regions(end_pfn); /* request I/O space for devices used on all i[345]86 PCs */ for (i = 0; i < ARRAY_SIZE(standard_io_resources); i++) request_resource(&ioport_resource, &standard_io_resources[i]); e820_setup_gap(); #ifdef CONFIG_VT #if defined(CONFIG_VGA_CONSOLE) if (!efi_enabled || (efi_mem_type(0xa0000) != EFI_CONVENTIONAL_MEMORY)) conswitchp = &vga_con; #elif defined(CONFIG_DUMMY_CONSOLE) conswitchp = &dummy_con; #endif #endif } struct cpu_dev *cpu_devs[X86_VENDOR_NUM] = {}; static void __cpuinit default_init(struct cpuinfo_x86 *c) Loading Loading @@ -626,7 +206,9 @@ static void __init early_cpu_support_print(void) } } static void __init early_cpu_init(void) static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c); void __init early_cpu_init(void) { struct cpu_vendor_dev *cvdev; Loading @@ -635,6 +217,7 @@ static void __init early_cpu_init(void) cvdev++) cpu_devs[cvdev->vendor] = cvdev->cpu_dev; early_cpu_support_print(); early_identify_cpu(&boot_cpu_data); } /* Do some early cpuid on the boot CPU to get some parameter that are Loading include/asm-x86/processor.h +1 −0 Original line number Diff line number Diff line Loading @@ -153,6 +153,7 @@ static inline int hlt_works(int cpu) extern void cpu_detect(struct cpuinfo_x86 *c); extern void early_cpu_init(void); extern void identify_cpu(struct cpuinfo_x86 *); extern void identify_boot_cpu(void); extern void identify_secondary_cpu(struct cpuinfo_x86 *); Loading Loading
arch/x86/kernel/cpu/Makefile +1 −1 Original line number Diff line number Diff line Loading @@ -6,7 +6,7 @@ obj-y := intel_cacheinfo.o addon_cpuid_features.o obj-y += proc.o feature_names.o obj-$(CONFIG_X86_32) += common.o bugs.o obj-$(CONFIG_X86_64) += bugs_64.o obj-$(CONFIG_X86_64) += common_64.o bugs_64.o obj-$(CONFIG_X86_32) += amd.o obj-$(CONFIG_X86_64) += amd_64.o obj-$(CONFIG_X86_32) += cyrix.o Loading
arch/x86/kernel/setup_64.c→arch/x86/kernel/cpu/common_64.c +32 −449 Original line number Diff line number Diff line /* * Copyright (C) 1995 Linus Torvalds */ /* * This file handles the architecture-dependent parts of initialization */ #include <linux/errno.h> #include <linux/sched.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/stddef.h> #include <linux/unistd.h> #include <linux/ptrace.h> #include <linux/slab.h> #include <linux/user.h> #include <linux/screen_info.h> #include <linux/ioport.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/initrd.h> #include <linux/highmem.h> #include <linux/bootmem.h> #include <linux/string.h> #include <linux/delay.h> #include <linux/smp.h> #include <linux/module.h> #include <linux/percpu.h> #include <linux/bootmem.h> #include <asm/processor.h> #include <linux/console.h> #include <linux/seq_file.h> #include <linux/crash_dump.h> #include <linux/root_dev.h> #include <linux/pci.h> #include <asm/pci-direct.h> #include <linux/efi.h> #include <linux/acpi.h> #include <linux/kallsyms.h> #include <linux/edd.h> #include <linux/iscsi_ibft.h> #include <linux/mmzone.h> #include <linux/kexec.h> #include <linux/cpufreq.h> #include <linux/dmi.h> #include <linux/dma-mapping.h> #include <linux/ctype.h> #include <linux/sort.h> #include <linux/uaccess.h> #include <linux/init_ohci1394_dma.h> #include <linux/kvm_para.h> #include <asm/mtrr.h> #include <asm/uaccess.h> #include <asm/system.h> #include <asm/vsyscall.h> #include <asm/io.h> #include <asm/smp.h> #include <asm/i387.h> #include <asm/msr.h> #include <asm/desc.h> #include <video/edid.h> #include <asm/e820.h> #include <asm/mpspec.h> #include <asm/dma.h> #include <asm/gart.h> #include <asm/mpspec.h> #include <asm/io.h> #include <asm/mmu_context.h> #include <asm/proto.h> #include <asm/setup.h> #include <asm/numa.h> #include <asm/sections.h> #include <asm/dmi.h> #include <asm/cacheflush.h> #include <asm/mtrr.h> #include <asm/mce.h> #include <asm/ds.h> #include <asm/topology.h> #include <asm/trampoline.h> #include <asm/pat.h> #include <asm/numa.h> #ifdef CONFIG_X86_LOCAL_APIC #include <asm/mpspec.h> #include <asm/apic.h> #include <mach_apic.h> #ifdef CONFIG_PARAVIRT #include <asm/paravirt.h> #else #define ARCH_SETUP #endif /* * Machine setup.. */ struct cpuinfo_x86 boot_cpu_data __read_mostly; EXPORT_SYMBOL(boot_cpu_data); __u32 cleared_cpu_caps[NCAPINTS] __cpuinitdata; unsigned long mmu_cr4_features; /* Boot loader ID as an integer, for the benefit of proc_dointvec */ int bootloader_type; #include "cpu.h" unsigned long saved_video_mode; /* * Early DMI memory /* We need valid kernel segments for data and code in long mode too * IRET will check the segment types kkeil 2000/10/28 * Also sysret mandates a special GDT layout */ int dmi_alloc_index; char dmi_alloc_data[DMI_MAX_DATA]; /* The TLS descriptors are currently at a different place compared to i386. Hopefully nobody expects them at a fixed place (Wine?) */ DEFINE_PER_CPU(struct gdt_page, gdt_page) = { .gdt = { [GDT_ENTRY_KERNEL32_CS] = { { { 0x0000ffff, 0x00cf9b00 } } }, [GDT_ENTRY_KERNEL_CS] = { { { 0x0000ffff, 0x00af9b00 } } }, [GDT_ENTRY_KERNEL_DS] = { { { 0x0000ffff, 0x00cf9300 } } }, [GDT_ENTRY_DEFAULT_USER32_CS] = { { { 0x0000ffff, 0x00cffb00 } } }, [GDT_ENTRY_DEFAULT_USER_DS] = { { { 0x0000ffff, 0x00cff300 } } }, [GDT_ENTRY_DEFAULT_USER_CS] = { { { 0x0000ffff, 0x00affb00 } } }, } }; EXPORT_PER_CPU_SYMBOL_GPL(gdt_page); /* * Setup options */ struct screen_info screen_info; EXPORT_SYMBOL(screen_info); struct sys_desc_table_struct { unsigned short length; unsigned char table[0]; }; struct edid_info edid_info; EXPORT_SYMBOL_GPL(edid_info); extern int root_mountflags; static char __initdata command_line[COMMAND_LINE_SIZE]; static struct resource standard_io_resources[] = { { .name = "dma1", .start = 0x00, .end = 0x1f, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "pic1", .start = 0x20, .end = 0x21, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "timer0", .start = 0x40, .end = 0x43, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "timer1", .start = 0x50, .end = 0x53, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "keyboard", .start = 0x60, .end = 0x60, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "keyboard", .start = 0x64, .end = 0x64, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "dma page reg", .start = 0x80, .end = 0x8f, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "pic2", .start = 0xa0, .end = 0xa1, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "dma2", .start = 0xc0, .end = 0xdf, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "fpu", .start = 0xf0, .end = 0xff, .flags = IORESOURCE_BUSY | IORESOURCE_IO } }; #define IORESOURCE_RAM (IORESOURCE_BUSY | IORESOURCE_MEM) static struct resource data_resource = { .name = "Kernel data", .start = 0, .end = 0, .flags = IORESOURCE_RAM, }; static struct resource code_resource = { .name = "Kernel code", .start = 0, .end = 0, .flags = IORESOURCE_RAM, }; static struct resource bss_resource = { .name = "Kernel bss", .start = 0, .end = 0, .flags = IORESOURCE_RAM, }; static void __init early_cpu_init(void); static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c); #ifdef CONFIG_PROC_VMCORE /* 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 #ifndef CONFIG_NUMA static void __init contig_initmem_init(unsigned long start_pfn, unsigned long end_pfn) { unsigned long bootmap_size, bootmap; bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT; bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size, PAGE_SIZE); if (bootmap == -1L) panic("Cannot find bootmem map of size %ld\n", bootmap_size); bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn); e820_register_active_regions(0, start_pfn, end_pfn); free_bootmem_with_active_regions(0, end_pfn); early_res_to_bootmem(0, end_pfn<<PAGE_SHIFT); reserve_bootmem(bootmap, bootmap_size, BOOTMEM_DEFAULT); } #endif #if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE) struct edd edd; #ifdef CONFIG_EDD_MODULE EXPORT_SYMBOL(edd); #endif /** * copy_edd() - Copy the BIOS EDD information * from boot_params into a safe place. * */ static inline void copy_edd(void) { memcpy(edd.mbr_signature, boot_params.edd_mbr_sig_buffer, sizeof(edd.mbr_signature)); memcpy(edd.edd_info, boot_params.eddbuf, sizeof(edd.edd_info)); edd.mbr_signature_nr = boot_params.edd_mbr_sig_buf_entries; edd.edd_info_nr = boot_params.eddbuf_entries; } #else static inline void copy_edd(void) { } #endif /* Overridden in paravirt.c if CONFIG_PARAVIRT */ void __attribute__((weak)) __init memory_setup(void) { machine_specific_memory_setup(); } __u32 cleared_cpu_caps[NCAPINTS] __cpuinitdata; /* Current gdt points %fs at the "master" per-cpu area: after this, * it's on the real one. */ Loading @@ -242,235 +51,6 @@ void switch_to_new_gdt(void) load_gdt(&gdt_descr); } /* * setup_arch - architecture-specific boot-time initializations * * Note: On x86_64, fixmaps are ready for use even before this is called. */ void __init setup_arch(char **cmdline_p) { unsigned i; printk(KERN_INFO "Command line: %s\n", boot_command_line); ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev); screen_info = boot_params.screen_info; edid_info = boot_params.edid_info; saved_video_mode = boot_params.hdr.vid_mode; bootloader_type = boot_params.hdr.type_of_loader; #ifdef CONFIG_BLK_DEV_RAM rd_image_start = boot_params.hdr.ram_size & RAMDISK_IMAGE_START_MASK; rd_prompt = ((boot_params.hdr.ram_size & RAMDISK_PROMPT_FLAG) != 0); rd_doload = ((boot_params.hdr.ram_size & RAMDISK_LOAD_FLAG) != 0); #endif #ifdef CONFIG_EFI if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature, "EL64", 4)) { efi_enabled = 1; efi_reserve_early(); } #endif ARCH_SETUP setup_memory_map(); copy_edd(); if (!boot_params.hdr.root_flags) root_mountflags &= ~MS_RDONLY; init_mm.start_code = (unsigned long) &_text; init_mm.end_code = (unsigned long) &_etext; init_mm.end_data = (unsigned long) &_edata; init_mm.brk = (unsigned long) &_end; code_resource.start = virt_to_phys(&_text); code_resource.end = virt_to_phys(&_etext)-1; data_resource.start = virt_to_phys(&_etext); data_resource.end = virt_to_phys(&_edata)-1; bss_resource.start = virt_to_phys(&__bss_start); bss_resource.end = virt_to_phys(&__bss_stop)-1; early_cpu_init(); early_identify_cpu(&boot_cpu_data); strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE); *cmdline_p = command_line; parse_setup_data(); parse_early_param(); if (acpi_mps_check()) { disable_apic = 1; clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC); } #ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT if (init_ohci1394_dma_early) init_ohci1394_dma_on_all_controllers(); #endif finish_e820_parsing(); /* after parse_early_param, so could debug it */ insert_resource(&iomem_resource, &code_resource); insert_resource(&iomem_resource, &data_resource); insert_resource(&iomem_resource, &bss_resource); early_gart_iommu_check(); e820_register_active_regions(0, 0, -1UL); /* * partially used pages are not usable - thus * we are rounding upwards: */ end_pfn = e820_end_of_ram(); /* pre allocte 4k for mptable mpc */ early_reserve_e820_mpc_new(); /* update e820 for memory not covered by WB MTRRs */ mtrr_bp_init(); if (mtrr_trim_uncached_memory(end_pfn)) { remove_all_active_ranges(); e820_register_active_regions(0, 0, -1UL); end_pfn = e820_end_of_ram(); } num_physpages = end_pfn; check_efer(); max_pfn_mapped = init_memory_mapping(0, (end_pfn << PAGE_SHIFT)); if (efi_enabled) efi_init(); vsmp_init(); dmi_scan_machine(); io_delay_init(); #ifdef CONFIG_KVM_CLOCK kvmclock_init(); #endif /* * Initialize the ACPI boot-time table parser (gets the RSDP and SDT). * Call this early for SRAT node setup. */ acpi_boot_table_init(); /* How many end-of-memory variables you have, grandma! */ max_low_pfn = end_pfn; max_pfn = end_pfn; high_memory = (void *)__va(end_pfn * PAGE_SIZE - 1) + 1; /* Remove active ranges so rediscovery with NUMA-awareness happens */ remove_all_active_ranges(); #ifdef CONFIG_ACPI_NUMA /* * Parse SRAT to discover nodes. */ acpi_numa_init(); #endif #ifdef CONFIG_NUMA numa_initmem_init(0, end_pfn); #else contig_initmem_init(0, end_pfn); #endif dma32_reserve_bootmem(); #ifdef CONFIG_ACPI_SLEEP /* * Reserve low memory region for sleep support. */ acpi_reserve_bootmem(); #endif #ifdef CONFIG_X86_MPPARSE /* * Find and reserve possible boot-time SMP configuration: */ find_smp_config(); #endif #ifdef CONFIG_BLK_DEV_INITRD if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) { unsigned long ramdisk_image = boot_params.hdr.ramdisk_image; unsigned long ramdisk_size = boot_params.hdr.ramdisk_size; unsigned long ramdisk_end = ramdisk_image + ramdisk_size; unsigned long end_of_mem = end_pfn << PAGE_SHIFT; if (ramdisk_end <= end_of_mem) { /* * don't need to reserve again, already reserved early * in x86_64_start_kernel, and early_res_to_bootmem * convert that to reserved in bootmem */ initrd_start = ramdisk_image + PAGE_OFFSET; initrd_end = initrd_start+ramdisk_size; } else { free_bootmem(ramdisk_image, ramdisk_size); printk(KERN_ERR "initrd extends beyond end of memory " "(0x%08lx > 0x%08lx)\ndisabling initrd\n", ramdisk_end, end_of_mem); initrd_start = 0; } } #endif reserve_crashkernel(); reserve_ibft_region(); paging_init(); map_vsyscall(); early_quirks(); /* * Read APIC and some other early information from ACPI tables. */ acpi_boot_init(); init_cpu_to_node(); #ifdef CONFIG_X86_MPPARSE /* * get boot-time SMP configuration: */ if (smp_found_config) get_smp_config(); #endif init_apic_mappings(); ioapic_init_mappings(); kvm_guest_init(); /* * We trust e820 completely. No explicit ROM probing in memory. */ e820_reserve_resources(); e820_mark_nosave_regions(end_pfn); /* request I/O space for devices used on all i[345]86 PCs */ for (i = 0; i < ARRAY_SIZE(standard_io_resources); i++) request_resource(&ioport_resource, &standard_io_resources[i]); e820_setup_gap(); #ifdef CONFIG_VT #if defined(CONFIG_VGA_CONSOLE) if (!efi_enabled || (efi_mem_type(0xa0000) != EFI_CONVENTIONAL_MEMORY)) conswitchp = &vga_con; #elif defined(CONFIG_DUMMY_CONSOLE) conswitchp = &dummy_con; #endif #endif } struct cpu_dev *cpu_devs[X86_VENDOR_NUM] = {}; static void __cpuinit default_init(struct cpuinfo_x86 *c) Loading Loading @@ -626,7 +206,9 @@ static void __init early_cpu_support_print(void) } } static void __init early_cpu_init(void) static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c); void __init early_cpu_init(void) { struct cpu_vendor_dev *cvdev; Loading @@ -635,6 +217,7 @@ static void __init early_cpu_init(void) cvdev++) cpu_devs[cvdev->vendor] = cvdev->cpu_dev; early_cpu_support_print(); early_identify_cpu(&boot_cpu_data); } /* Do some early cpuid on the boot CPU to get some parameter that are Loading
include/asm-x86/processor.h +1 −0 Original line number Diff line number Diff line Loading @@ -153,6 +153,7 @@ static inline int hlt_works(int cpu) extern void cpu_detect(struct cpuinfo_x86 *c); extern void early_cpu_init(void); extern void identify_cpu(struct cpuinfo_x86 *); extern void identify_boot_cpu(void); extern void identify_secondary_cpu(struct cpuinfo_x86 *); Loading
Yinghai Lu <yhlu.kernel@mail.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu>