x86_64: move kernel

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 289 deletions

diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c
deleted file mode 100644
index 1200aaac403e..000000000000
--- a/arch/x86_64/kernel/setup64.c
+++ /dev/null
@@ -1,289 +0,0 @@
-/* 
- * X86-64 specific CPU setup.
- * Copyright (C) 1995  Linus Torvalds
- * Copyright 2001, 2002, 2003 SuSE Labs / Andi Kleen.
- * See setup.c for older changelog.
- */ 
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/bootmem.h>
-#include <linux/bitops.h>
-#include <linux/module.h>
-#include <asm/bootsetup.h>
-#include <asm/pda.h>
-#include <asm/pgtable.h>
-#include <asm/processor.h>
-#include <asm/desc.h>
-#include <asm/atomic.h>
-#include <asm/mmu_context.h>
-#include <asm/smp.h>
-#include <asm/i387.h>
-#include <asm/percpu.h>
-#include <asm/proto.h>
-#include <asm/sections.h>
-
-char x86_boot_params[BOOT_PARAM_SIZE] __initdata;
-
-cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE;
-
-struct x8664_pda *_cpu_pda[NR_CPUS] __read_mostly;
-EXPORT_SYMBOL(_cpu_pda);
-struct x8664_pda boot_cpu_pda[NR_CPUS] __cacheline_aligned;
-
-struct desc_ptr idt_descr = { 256 * 16 - 1, (unsigned long) idt_table };
-
-char boot_cpu_stack[IRQSTACKSIZE] __attribute__((section(".bss.page_aligned")));
-
-unsigned long __supported_pte_mask __read_mostly = ~0UL;
-static int do_not_nx __cpuinitdata = 0;
-
-/* noexec=on|off
-Control non executable mappings for 64bit processes.
-
-on      Enable(default)
-off     Disable
-*/ 
-static int __init nonx_setup(char *str)
-{
-        if (!str)
-                return -EINVAL;
-        if (!strncmp(str, "on", 2)) {
-                __supported_pte_mask |= _PAGE_NX; 
-                do_not_nx = 0; 
-        } else if (!strncmp(str, "off", 3)) {
-                do_not_nx = 1;
-                __supported_pte_mask &= ~_PAGE_NX;
-        }
-        return 0;
-} 
-early_param("noexec", nonx_setup);
-
-int force_personality32 = 0; 
-
-/* noexec32=on|off
-Control non executable heap for 32bit processes.
-To control the stack too use noexec=off
-
-on      PROT_READ does not imply PROT_EXEC for 32bit processes
-off     PROT_READ implies PROT_EXEC (default)
-*/
-static int __init nonx32_setup(char *str)
-{
-        if (!strcmp(str, "on"))
-                force_personality32 &= ~READ_IMPLIES_EXEC;
-        else if (!strcmp(str, "off"))
-                force_personality32 |= READ_IMPLIES_EXEC;
-        return 1;
-}
-__setup("noexec32=", nonx32_setup);
-
-/*
- * Great future plan:
- * Declare PDA itself and support (irqstack,tss,pgd) as per cpu data.
- * Always point %gs to its beginning
- */
-void __init setup_per_cpu_areas(void)
-{ 
-        int i;
-        unsigned long size;
-
-#ifdef CONFIG_HOTPLUG_CPU
-        prefill_possible_map();
-#endif
-
-        /* Copy section for each CPU (we discard the original) */
-        size = PERCPU_ENOUGH_ROOM;
-
-        printk(KERN_INFO "PERCPU: Allocating %lu bytes of per cpu data\n", size);
-        for_each_cpu_mask (i, cpu_possible_map) {
-                char *ptr;
-
-                if (!NODE_DATA(cpu_to_node(i))) {
-                        printk("cpu with no node %d, num_online_nodes %d\n",
-                               i, num_online_nodes());
-                        ptr = alloc_bootmem_pages(size);
-                } else { 
-                        ptr = alloc_bootmem_pages_node(NODE_DATA(cpu_to_node(i)), size);
-                }
-                if (!ptr)
-                        panic("Cannot allocate cpu data for CPU %d\n", i);
-                cpu_pda(i)->data_offset = ptr - __per_cpu_start;
-                memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start);
-        }
-} 
-
-void pda_init(int cpu)
-{ 
-        struct x8664_pda *pda = cpu_pda(cpu);
-
-        /* Setup up data that may be needed in __get_free_pages early */
-        asm volatile("movl %0,%%fs ; movl %0,%%gs" :: "r" (0)); 
-        /* Memory clobbers used to order PDA accessed */
-        mb();
-        wrmsrl(MSR_GS_BASE, pda);
-        mb();
-
-        pda->cpunumber = cpu; 
-        pda->irqcount = -1;
-        pda->kernelstack = 
-                (unsigned long)stack_thread_info() - PDA_STACKOFFSET + THREAD_SIZE; 
-        pda->active_mm = &init_mm;
-        pda->mmu_state = 0;
-
-        if (cpu == 0) {
-                /* others are initialized in smpboot.c */
-                pda->pcurrent = &init_task;
-                pda->irqstackptr = boot_cpu_stack; 
-        } else {
-                pda->irqstackptr = (char *)
-                        __get_free_pages(GFP_ATOMIC, IRQSTACK_ORDER);
-                if (!pda->irqstackptr)
-                        panic("cannot allocate irqstack for cpu %d", cpu); 
-        }
-
-
-        pda->irqstackptr += IRQSTACKSIZE-64;
-} 
-
-char boot_exception_stacks[(N_EXCEPTION_STACKS - 1) * EXCEPTION_STKSZ + DEBUG_STKSZ]
-__attribute__((section(".bss.page_aligned")));
-
-extern asmlinkage void ignore_sysret(void);
-
-/* May not be marked __init: used by software suspend */
-void syscall_init(void)
-{
-        /* 
-         * LSTAR and STAR live in a bit strange symbiosis.
-         * They both write to the same internal register. STAR allows to set CS/DS
-         * but only a 32bit target. LSTAR sets the 64bit rip.    
-         */ 
-        wrmsrl(MSR_STAR,  ((u64)__USER32_CS)<<48  | ((u64)__KERNEL_CS)<<32); 
-        wrmsrl(MSR_LSTAR, system_call); 
-        wrmsrl(MSR_CSTAR, ignore_sysret);
-
-#ifdef CONFIG_IA32_EMULATION            
-        syscall32_cpu_init ();
-#endif
-
-        /* Flags to clear on syscall */
-        wrmsrl(MSR_SYSCALL_MASK, EF_TF|EF_DF|EF_IE|0x3000); 
-}
-
-void __cpuinit check_efer(void)
-{
-        unsigned long efer;
-
-        rdmsrl(MSR_EFER, efer); 
-        if (!(efer & EFER_NX) || do_not_nx) { 
-                __supported_pte_mask &= ~_PAGE_NX; 
-        }       
-}
-
-unsigned long kernel_eflags;
-
-/*
- * cpu_init() initializes state that is per-CPU. Some data is already
- * initialized (naturally) in the bootstrap process, such as the GDT
- * and IDT. We reload them nevertheless, this function acts as a
- * 'CPU state barrier', nothing should get across.
- * A lot of state is already set up in PDA init.
- */
-void __cpuinit cpu_init (void)
-{
-        int cpu = stack_smp_processor_id();
-        struct tss_struct *t = &per_cpu(init_tss, cpu);
-        struct orig_ist *orig_ist = &per_cpu(orig_ist, cpu);
-        unsigned long v; 
-        char *estacks = NULL; 
-        struct task_struct *me;
-        int i;
-
-        /* CPU 0 is initialised in head64.c */
-        if (cpu != 0) {
-                pda_init(cpu);
-        } else 
-                estacks = boot_exception_stacks; 
-
-        me = current;
-
-        if (cpu_test_and_set(cpu, cpu_initialized))
-                panic("CPU#%d already initialized!\n", cpu);
-
-        printk("Initializing CPU#%d\n", cpu);
-
-        clear_in_cr4(X86_CR4_VME|X86_CR4_PVI|X86_CR4_TSD|X86_CR4_DE);
-
-        /*
-         * Initialize the per-CPU GDT with the boot GDT,
-         * and set up the GDT descriptor:
-         */
-        if (cpu)
-                memcpy(cpu_gdt(cpu), cpu_gdt_table, GDT_SIZE);
-
-        cpu_gdt_descr[cpu].size = GDT_SIZE;
-        asm volatile("lgdt %0" :: "m" (cpu_gdt_descr[cpu]));
-        asm volatile("lidt %0" :: "m" (idt_descr));
-
-        memset(me->thread.tls_array, 0, GDT_ENTRY_TLS_ENTRIES * 8);
-        syscall_init();
-
-        wrmsrl(MSR_FS_BASE, 0);
-        wrmsrl(MSR_KERNEL_GS_BASE, 0);
-        barrier(); 
-
-        check_efer();
-
-        /*
-         * set up and load the per-CPU TSS
-         */
-        for (v = 0; v < N_EXCEPTION_STACKS; v++) {
-                static const unsigned int order[N_EXCEPTION_STACKS] = {
-                        [0 ... N_EXCEPTION_STACKS - 1] = EXCEPTION_STACK_ORDER,
-                        [DEBUG_STACK - 1] = DEBUG_STACK_ORDER
-                };
-                if (cpu) {
-                        estacks = (char *)__get_free_pages(GFP_ATOMIC, order[v]);
-                        if (!estacks)
-                                panic("Cannot allocate exception stack %ld %d\n",
-                                      v, cpu); 
-                }
-                estacks += PAGE_SIZE << order[v];
-                orig_ist->ist[v] = t->ist[v] = (unsigned long)estacks;
-        }
-
-        t->io_bitmap_base = offsetof(struct tss_struct, io_bitmap);
-        /*
-         * <= is required because the CPU will access up to
-         * 8 bits beyond the end of the IO permission bitmap.
-         */
-        for (i = 0; i <= IO_BITMAP_LONGS; i++)
-                t->io_bitmap[i] = ~0UL;
-
-        atomic_inc(&init_mm.mm_count);
-        me->active_mm = &init_mm;
-        if (me->mm)
-                BUG();
-        enter_lazy_tlb(&init_mm, me);
-
-        set_tss_desc(cpu, t);
-        load_TR_desc();
-        load_LDT(&init_mm.context);
-
-        /*
-         * Clear all 6 debug registers:
-         */
-
-        set_debugreg(0UL, 0);
-        set_debugreg(0UL, 1);
-        set_debugreg(0UL, 2);
-        set_debugreg(0UL, 3);
-        set_debugreg(0UL, 6);
-        set_debugreg(0UL, 7);
-
-        fpu_init(); 
-
-        raw_local_save_flags(kernel_eflags);
-}