+#ifdef CONFIG_X86_32
+ /* max_low_pfn get updated here */
+ find_low_pfn_range();
+#else
+ num_physpages = max_pfn;
+
+ check_efer();
+
+ /* How many end-of-memory variables you have, grandma! */
+ /* need this before calling reserve_initrd */
+ if (max_pfn > (1UL<<(32 - PAGE_SHIFT)))
+ max_low_pfn = e820_end_of_low_ram_pfn();
+ else
+ max_low_pfn = max_pfn;
+
+ high_memory = (void *)__va(max_pfn * PAGE_SIZE - 1) + 1;
+#endif
+
+ /* max_pfn_mapped is updated here */
+ max_low_pfn_mapped = init_memory_mapping(0, max_low_pfn<<PAGE_SHIFT);
+ max_pfn_mapped = max_low_pfn_mapped;
+
+#ifdef CONFIG_X86_64
+ if (max_pfn > max_low_pfn) {
+ max_pfn_mapped = init_memory_mapping(1UL<<32,
+ max_pfn<<PAGE_SHIFT);
+ /* can we preseve max_low_pfn ?*/
+ max_low_pfn = max_pfn;
+ }
+#endif
+
+ /*
+ * NOTE: On x86-32, only from this point on, fixmaps are ready for use.
+ */
+
+#ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
+ if (init_ohci1394_dma_early)
+ init_ohci1394_dma_on_all_controllers();
+#endif
+
+ reserve_initrd();
+
+#ifdef CONFIG_X86_64
+ vsmp_init();
+#endif
+
+ dmi_scan_machine();
+
+ io_delay_init();
+
+ /*
+ * Parse the ACPI tables for possible boot-time SMP configuration.
+ */
+ acpi_boot_table_init();
+
+#ifdef CONFIG_ACPI_NUMA
+ /*
+ * Parse SRAT to discover nodes.
+ */
+ acpi_numa_init();
+#endif
+
+ initmem_init(0, max_pfn);
+
+#ifdef CONFIG_X86_64
+ dma32_reserve_bootmem();
+#endif
+
+#ifdef CONFIG_ACPI_SLEEP
+ /*
+ * Reserve low memory region for sleep support.
+ */
+ acpi_reserve_bootmem();
+#endif
+#ifdef CONFIG_X86_FIND_SMP_CONFIG
+ /*
+ * Find and reserve possible boot-time SMP configuration:
+ */
+ find_smp_config();
+#endif
+ reserve_crashkernel();
+
+ reserve_ibft_region();
+
+#ifdef CONFIG_KVM_CLOCK
+ kvmclock_init();
+#endif
+
+#if defined(CONFIG_VMI) && defined(CONFIG_X86_32)
+ /*
+ * Must be after max_low_pfn is determined, and before kernel
+ * pagetables are setup.
+ */
+ vmi_init();
+#endif
+
+ paging_init();
+
+#ifdef CONFIG_X86_64
+ map_vsyscall();
+#endif
+
+#ifdef CONFIG_X86_GENERICARCH
+ generic_apic_probe();
+#endif
+
+ early_quirks();
+
+ /*
+ * Read APIC and some other early information from ACPI tables.
+ */
+ acpi_boot_init();
+
+#if defined(CONFIG_X86_MPPARSE) || defined(CONFIG_X86_VISWS)
+ /*
+ * get boot-time SMP configuration:
+ */
+ if (smp_found_config)
+ get_smp_config();
+#endif
+
+ prefill_possible_map();
+#ifdef CONFIG_X86_64
+ init_cpu_to_node();
+#endif
+
+#ifdef CONFIG_X86_NUMAQ
+ /*
+ * need to check online nodes num, call it
+ * here before time_init/tsc_init
+ */
+ numaq_tsc_disable();
+#endif
+
+ init_apic_mappings();
+ ioapic_init_mappings();
+
+#if defined(CONFIG_SMP) && defined(CONFIG_X86_PC) && defined(CONFIG_X86_32)
+ if (def_to_bigsmp)
+ printk(KERN_WARNING "More than 8 CPUs detected and "
+ "CONFIG_X86_PC cannot handle it.\nUse "
+ "CONFIG_X86_GENERICARCH or CONFIG_X86_BIGSMP.\n");
+#endif
+ kvm_guest_init();
+
+ e820_reserve_resources();
+ e820_mark_nosave_regions(max_low_pfn);
+
+#ifdef CONFIG_X86_32
+ request_resource(&iomem_resource, &video_ram_resource);
+#endif
+ reserve_standard_io_resources();
+
+ 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
+}