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path: root/target/linux/s3c24xx/patches-2.6.24/1154--pcf50633-Disable-debugging-statements-as-the-drive.patch

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author	Hauke Mehrtens <hauke@hauke-m.de>	2022-04-17 19:35:25 +0200
committer	Hauke Mehrtens <hauke@hauke-m.de>	2022-04-17 19:35:25 +0200
commit	d03dc49943db1d02ff89e056a18eefe5e2d51dec (patch)
tree	1632eef7d32c000dfd7694235c08fa94f5cb3db9 /target/linux/s3c24xx/patches-2.6.24/1154--pcf50633-Disable-debugging-statements-as-the-drive.patch
parent	9ce6aa9d8d8a1147dcf03cb509cafb5fa7339a91 (diff)
download	upstream-19.07.10.tar.gz upstream-19.07.10.tar.bz2 upstream-19.07.10.zip

OpenWrt v19.07.10: adjust config defaultsv19.07.10

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.24/1154--pcf50633-Disable-debugging-statements-as-the-drive.patch')

0 files changed, 0 insertions, 0 deletions

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/*
 *  linux/arch/x86-64/kernel/setup.c
 *
 *  Copyright (C) 1995  Linus Torvalds
 *
 *  Nov 2001 Dave Jones <davej@suse.de>
 *  Forked from i386 setup code.
 *
 *  $Id$
 */

/*
 * 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/a.out.h>
#include <linux/tty.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/config.h>
#include <linux/init.h>
#include <linux/initrd.h>
#include <linux/highmem.h>
#include <linux/bootmem.h>
#include <linux/module.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 <linux/acpi.h>
#include <linux/kallsyms.h>
#include <linux/edd.h>
#include <linux/mmzone.h>
#include <linux/kexec.h>
#include <linux/cpufreq.h>
#include <linux/dmi.h>
#include <linux/dma-mapping.h>

#include <asm/mtrr.h>
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/smp.h>
#include <asm/msr.h>
#include <asm/desc.h>
#include <video/edid.h>
#include <asm/e820.h>
#include <asm/dma.h>
#include <asm/mpspec.h>
#include <asm/mmu_context.h>
#include <asm/bootsetup.h>
#include <asm/proto.h>
#include <asm/setup.h>
#include <asm/mach_apic.h>
#include <asm/numa.h>
#include <asm/swiotlb.h>
#include <asm/sections.h>
#include <asm/gart-mapping.h>
#ifdef CONFIG_XEN
#include <linux/percpu.h>
#include <xen/interface/physdev.h>
#include "setup_arch_pre.h"
#include <asm/hypervisor.h>
#include <xen/interface/nmi.h>
#include <xen/features.h>
#define PFN_UP(x)       (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
#define PFN_PHYS(x)     ((x) << PAGE_SHIFT)
#define end_pfn_map end_pfn
#include <asm/mach-xen/setup_arch_post.h>

extern unsigned long start_pfn;
extern struct edid_info edid_info;

shared_info_t *HYPERVISOR_shared_info = (shared_info_t *)empty_zero_page;
EXPORT_SYMBOL(HYPERVISOR_shared_info);

extern char hypercall_page[PAGE_SIZE];
EXPORT_SYMBOL(hypercall_page);

/* Allows setting of maximum possible memory size  */
unsigned long xen_override_max_pfn;

unsigned long *phys_to_machine_mapping;
unsigned long *pfn_to_mfn_frame_list_list, *pfn_to_mfn_frame_list[512];

EXPORT_SYMBOL(phys_to_machine_mapping);

DEFINE_PER_CPU(multicall_entry_t, multicall_list[8]);
DEFINE_PER_CPU(int, nr_multicall_ents);

/* Raw start-of-day parameters from the hypervisor. */
start_info_t *xen_start_info;
EXPORT_SYMBOL(xen_start_info);
#endif

/*
 * Machine setup..
 */

struct cpuinfo_x86 boot_cpu_data __read_mostly;

unsigned long mmu_cr4_features;

int acpi_disabled;
EXPORT_SYMBOL(acpi_disabled);
#ifdef	CONFIG_ACPI
extern int __initdata acpi_ht;
extern acpi_interrupt_flags	acpi_sci_flags;
int __initdata acpi_force = 0;
#endif

int acpi_numa __initdata;

/* Boot loader ID as an integer, for the benefit of proc_dointvec */
int bootloader_type;

unsigned long saved_video_mode;

/*
 * Setup options
 */
struct drive_info_struct { char dummy[32]; } drive_info;
struct screen_info screen_info;
struct sys_desc_table_struct {
	unsigned short length;
	unsigned char table[0];
};

struct edid_info edid_info;
struct e820map e820;

extern int root_mountflags;

char command_line[COMMAND_LINE_SIZE];

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 = 0x6f,
		.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 STANDARD_IO_RESOURCES \
	(sizeof standard_io_resources / sizeof standard_io_resources[0])

#define IORESOURCE_RAM (IORESOURCE_BUSY | IORESOURCE_MEM)

struct resource data_resource = {
	.name = "Kernel data",
	.start = 0,
	.end = 0,
	.flags = IORESOURCE_RAM,
};
struct resource code_resource = {
	.name = "Kernel code",
	.start = 0,
	.end = 0,
	.flags = IORESOURCE_RAM,
};

#define IORESOURCE_ROM (IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM)

#if defined(CONFIG_XEN_PRIVILEGED_GUEST) || !defined(CONFIG_XEN)
static struct resource system_rom_resource = {
	.name = "System ROM",
	.start = 0xf0000,
	.end = 0xfffff,
	.flags = IORESOURCE_ROM,
};

static struct resource extension_rom_resource = {
	.name = "Extension ROM",
	.start = 0xe0000,
	.end = 0xeffff,
	.flags = IORESOURCE_ROM,
};

static struct resource adapter_rom_resources[] = {
	{ .name = "Adapter ROM", .start = 0xc8000, .end = 0,
		.flags = IORESOURCE_ROM },
	{ .name = "Adapter ROM", .start = 0, .end = 0,
		.flags = IORESOURCE_ROM },
	{ .name = "Adapter ROM", .start = 0, .end = 0,
		.flags = IORESOURCE_ROM },
	{ .name = "Adapter ROM", .start = 0, .end = 0,
		.flags = IORESOURCE_ROM },
	{ .name = "Adapter ROM", .start = 0, .end = 0,
		.flags = IORESOURCE_ROM },
	{ .name = "Adapter ROM", .start = 0, .end = 0,
		.flags = IORESOURCE_ROM }
};
#endif

#define ADAPTER_ROM_RESOURCES \
	(sizeof adapter_rom_resources / sizeof adapter_rom_resources[0])

#if defined(CONFIG_XEN_PRIVILEGED_GUEST) || !defined(CONFIG_XEN)
static struct resource video_rom_resource = {
	.name = "Video ROM",
	.start = 0xc0000,
	.end = 0xc7fff,
	.flags = IORESOURCE_ROM,
};
#endif

static struct resource video_ram_resource = {
	.name = "Video RAM area",
	.start = 0xa0000,
	.end = 0xbffff,
	.flags = IORESOURCE_RAM,
};

#if defined(CONFIG_XEN_PRIVILEGED_GUEST) || !defined(CONFIG_XEN)
#define romsignature(x) (*(unsigned short *)(x) == 0xaa55)

static int __init romchecksum(unsigned char *rom, unsigned long length)
{
	unsigned char *p, sum = 0;

	for (p = rom; p < rom + length; p++)
		sum += *p;
	return sum == 0;
}

static void __init probe_roms(void)
{
	unsigned long start, length, upper;
	unsigned char *rom;
	int	      i;

	/* video rom */
	upper = adapter_rom_resources[0].start;
	for (start = video_rom_resource.start; start < upper; start += 2048) {
		rom = isa_bus_to_virt(start);
		if (!romsignature(rom))
			continue;

		video_rom_resource.start = start;

		/* 0 < length <= 0x7f * 512, historically */
		length = rom[2] * 512;

		/* if checksum okay, trust length byte */
		if (length && romchecksum(rom, length))
			video_rom_resource.end = start + length - 1;

		request_resource(&iomem_resource, &video_rom_resource);
		break;
			}

	start = (video_rom_resource.end + 1 + 2047) & ~2047UL;
	if (start < upper)
		start = upper;

	/* system rom */
	request_resource(&iomem_resource, &system_rom_resource);
	upper = system_rom_resource.start;

	/* check for extension rom (ignore length byte!) */
	rom = isa_bus_to_virt(extension_rom_resource.start);
	if (romsignature(rom)) {
		length = extension_rom_resource.end - extension_rom_resource.start + 1;
		if (romchecksum(rom, length)) {
			request_resource(&iomem_resource, &extension_rom_resource);
			upper = extension_rom_resource.start;
		}
	}

	/* check for adapter roms on 2k boundaries */
	for (i = 0; i < ADAPTER_ROM_RESOURCES && start < upper; start += 2048) {
		rom = isa_bus_to_virt(start);
		if (!romsignature(rom))
			continue;

		/* 0 < length <= 0x7f * 512, historically */
		length = rom[2] * 512;

		/* but accept any length that fits if checksum okay */
		if (!length || start + length > upper || !romchecksum(rom, length))
			continue;

		adapter_rom_resources[i].start = start;
		adapter_rom_resources[i].end = start + length - 1;
		request_resource(&iomem_resource, &adapter_rom_resources[i]);

		start = adapter_rom_resources[i++].end & ~2047UL;
	}
}
#endif

static __init void parse_cmdline_early (char ** cmdline_p)
{
	char c = ' ', *to = command_line, *from = COMMAND_LINE;
	int len = 0;
	int userdef = 0;

	for (;;) {
		if (c != ' ') 
			goto next_char; 

#ifdef  CONFIG_SMP
		/*
		 * If the BIOS enumerates physical processors before logical,
		 * maxcpus=N at enumeration-time can be used to disable HT.
		 */
		else if (!memcmp(from, "maxcpus=", 8)) {
			extern unsigned int maxcpus;

			maxcpus = simple_strtoul(from + 8, NULL, 0);
		}
#endif
#ifdef CONFIG_ACPI
		/* "acpi=off" disables both ACPI table parsing and interpreter init */
		if (!memcmp(from, "acpi=off", 8))
			disable_acpi();

		if (!memcmp(from, "acpi=force", 10)) { 
			/* add later when we do DMI horrors: */
			acpi_force = 1;
			acpi_disabled = 0;
		}

		/* acpi=ht just means: do ACPI MADT parsing 
		   at bootup, but don't enable the full ACPI interpreter */
		if (!memcmp(from, "acpi=ht", 7)) { 
			if (!acpi_force)
				disable_acpi();
			acpi_ht = 1; 
		}
                else if (!memcmp(from, "pci=noacpi", 10)) 
			acpi_disable_pci();
		else if (!memcmp(from, "acpi=noirq", 10))
			acpi_noirq_set();

		else if (!memcmp(from, "acpi_sci=edge", 13))
			acpi_sci_flags.trigger =  1;
		else if (!memcmp(from, "acpi_sci=level", 14))
			acpi_sci_flags.trigger = 3;
		else if (!memcmp(from, "acpi_sci=high", 13))
			acpi_sci_flags.polarity = 1;
		else if (!memcmp(from, "acpi_sci=low", 12))
			acpi_sci_flags.polarity = 3;

		/* acpi=strict disables out-of-spec workarounds */
		else if (!memcmp(from, "acpi=strict", 11)) {
			acpi_strict = 1;
		}
#ifdef CONFIG_X86_IO_APIC
		else if (!memcmp(from, "acpi_skip_timer_override", 24))
			acpi_skip_timer_override = 1;
#endif
#endif

#ifndef CONFIG_XEN
		if (!memcmp(from, "nolapic", 7) ||
		    !memcmp(from, "disableapic", 11))
			disable_apic = 1;

		/* Don't confuse with noapictimer */
		if (!memcmp(from, "noapic", 6) &&
			(from[6] == ' ' || from[6] == 0))
			skip_ioapic_setup = 1;

		/* Make sure to not confuse with apic= */
		if (!memcmp(from, "apic", 4) &&
			(from[4] == ' ' || from[4] == 0)) {
			skip_ioapic_setup = 0;
			ioapic_force = 1;
		}
#endif
			
		if (!memcmp(from, "mem=", 4))
			parse_memopt(from+4, &from); 

		if (!memcmp(from, "memmap=", 7)) {
			/* exactmap option is for used defined memory */
			if (!memcmp(from+7, "exactmap", 8)) {
#ifdef CONFIG_CRASH_DUMP
				/* If we are doing a crash dump, we
				 * still need to know the real mem
				 * size before original memory map is
				 * reset.
				 */
				saved_max_pfn = e820_end_of_ram();
#endif
				from += 8+7;
				end_pfn_map = 0;
				e820.nr_map = 0;
				userdef = 1;
			}
			else {
				parse_memmapopt(from+7, &from);
				userdef = 1;
			}
		}

#ifdef CONFIG_NUMA
		if (!memcmp(from, "numa=", 5))
			numa_setup(from+5); 
#endif

		if (!memcmp(from,"iommu=",6)) { 
			iommu_setup(from+6); 
		}

		if (!memcmp(from,"oops=panic", 10))
			panic_on_oops = 1;

		if (!memcmp(from, "noexec=", 7))
			nonx_setup(from + 7);

#ifdef CONFIG_KEXEC
		/* crashkernel=size@addr specifies the location to reserve for
		 * a crash kernel.  By reserving this memory we guarantee
		 * that linux never set's it up as a DMA target.
		 * Useful for holding code to do something appropriate
		 * after a kernel panic.
		 */
		else if (!memcmp(from, "crashkernel=", 12)) {
			unsigned long size, base;
			size = memparse(from+12, &from);
			if (*from == '@') {
				base = memparse(from+1, &from);
				/* FIXME: Do I want a sanity check
				 * to validate the memory range?
				 */
				crashk_res.start = base;
				crashk_res.end   = base + size - 1;
			}
		}
#endif

#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.
		 */
		else if(!memcmp(from, "elfcorehdr=", 11))
			elfcorehdr_addr = memparse(from+11, &from);
#endif
	next_char:
		c = *(from++);
		if (!c)
			break;
		if (COMMAND_LINE_SIZE <= ++len)
			break;
		*(to++) = c;
	}
	if (userdef) {
		printk(KERN_INFO "user-defined physical RAM map:\n");
		e820_print_map("user");
	}
	*to = '\0';
	*cmdline_p = command_line;
}

#ifndef CONFIG_NUMA
#ifdef CONFIG_XEN
static void __init
contig_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
{
        unsigned long bootmap_size;

        bootmap_size = init_bootmem(start_pfn, end_pfn);
        free_bootmem(0, xen_start_info->nr_pages << PAGE_SHIFT);   
        reserve_bootmem(HIGH_MEMORY,
                        (PFN_PHYS(start_pfn) + bootmap_size + PAGE_SIZE-1)
                        - HIGH_MEMORY);
}
#else
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);
	if (bootmap == -1L)
		panic("Cannot find bootmem map of size %ld\n",bootmap_size);
	bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn);
	e820_bootmem_free(NODE_DATA(0), 0, end_pfn << PAGE_SHIFT);
	reserve_bootmem(bootmap, bootmap_size);
} 
#endif	/* !CONFIG_XEN */
#endif

/* Use inline assembly to define this because the nops are defined 
   as inline assembly strings in the include files and we cannot 
   get them easily into strings. */
asm("\t.data\nk8nops: " 
    K8_NOP1 K8_NOP2 K8_NOP3 K8_NOP4 K8_NOP5 K8_NOP6
    K8_NOP7 K8_NOP8); 
    
extern unsigned char k8nops[];
static unsigned char *k8_nops[ASM_NOP_MAX+1] = { 
     NULL,
     k8nops,
     k8nops + 1,
     k8nops + 1 + 2,
     k8nops + 1 + 2 + 3,
     k8nops + 1 + 2 + 3 + 4,
     k8nops + 1 + 2 + 3 + 4 + 5,
     k8nops + 1 + 2 + 3 + 4 + 5 + 6,
     k8nops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
}; 

extern char __vsyscall_0;

/* Replace instructions with better alternatives for this CPU type.

   This runs before SMP is initialized to avoid SMP problems with
   self modifying code. This implies that assymetric systems where
   APs have less capabilities than the boot processor are not handled. 
   In this case boot with "noreplacement". */ 
void apply_alternatives(void *start, void *end) 
{ 
	struct alt_instr *a; 
	int diff, i, k;
	for (a = start; (void *)a < end; a++) { 
		u8 *instr;

		if (!boot_cpu_has(a->cpuid))
			continue;

		BUG_ON(a->replacementlen > a->instrlen); 
		instr = a->instr;
		/* vsyscall code is not mapped yet. resolve it manually. */
		if (instr >= (u8 *)VSYSCALL_START && instr < (u8*)VSYSCALL_END)
			instr -= VSYSCALL_START - (unsigned long)&__vsyscall_0;
		__inline_memcpy(instr, a->replacement, a->replacementlen);
		diff = a->instrlen - a->replacementlen; 

		/* Pad the rest with nops */
		for (i = a->replacementlen; diff > 0; diff -= k, i += k) {
			k = diff;
			if (k > ASM_NOP_MAX)
				k = ASM_NOP_MAX;
			__inline_memcpy(instr + i, k8_nops[k], k);
		} 
	}
} 

static int no_replacement __initdata = 0; 
 
void __init alternative_instructions(void)
{
	extern struct alt_instr __alt_instructions[], __alt_instructions_end[];
	if (no_replacement) 
		return;
	apply_alternatives(__alt_instructions, __alt_instructions_end);
}

static int __init noreplacement_setup(char *s)
{ 
     no_replacement = 1; 
     return 0; 
} 

__setup("noreplacement", noreplacement_setup); 

#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, EDD_MBR_SIGNATURE, sizeof(edd.mbr_signature));
     memcpy(edd.edd_info, EDD_BUF, sizeof(edd.edd_info));
     edd.mbr_signature_nr = EDD_MBR_SIG_NR;
     edd.edd_info_nr = EDD_NR;
}
#else
static inline void copy_edd(void)
{
}
#endif

#ifndef CONFIG_XEN
#define EBDA_ADDR_POINTER 0x40E
static void __init reserve_ebda_region(void)
{
	unsigned int addr;
	/** 
	 * there is a real-mode segmented pointer pointing to the 
	 * 4K EBDA area at 0x40E
	 */
	addr = *(unsigned short *)phys_to_virt(EBDA_ADDR_POINTER);
	addr <<= 4;
	if (addr)
		reserve_bootmem_generic(addr, PAGE_SIZE);
}
#endif

void __init setup_arch(char **cmdline_p)
{
	unsigned long kernel_end;

#ifdef CONFIG_XEN
 	ROOT_DEV = MKDEV(RAMDISK_MAJOR,0); 
 	drive_info = DRIVE_INFO;
	kernel_end = 0;		/* dummy */
 	screen_info = SCREEN_INFO;

	if (xen_start_info->flags & SIF_INITDOMAIN) {
		/* This is drawn from a dump from vgacon:startup in
		 * standard Linux. */
		screen_info.orig_video_mode = 3;
		screen_info.orig_video_isVGA = 1;
		screen_info.orig_video_lines = 25;
		screen_info.orig_video_cols = 80;
		screen_info.orig_video_ega_bx = 3;
		screen_info.orig_video_points = 16;
	} else
		screen_info.orig_video_isVGA = 0;

	edid_info = EDID_INFO;
	saved_video_mode = SAVED_VIDEO_MODE;
	bootloader_type = LOADER_TYPE;

#ifdef CONFIG_BLK_DEV_RAM
	rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
	rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
	rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);


#endif

	setup_xen_features();

	HYPERVISOR_vm_assist(VMASST_CMD_enable,
			     VMASST_TYPE_writable_pagetables);

	ARCH_SETUP
#else
 	ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
 	drive_info = DRIVE_INFO;
 	screen_info = SCREEN_INFO;
	edid_info = EDID_INFO;
	saved_video_mode = SAVED_VIDEO_MODE;
	bootloader_type = LOADER_TYPE;

#ifdef CONFIG_BLK_DEV_RAM
	rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
	rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
	rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
#endif
	setup_memory_region();
	copy_edd();
#endif	/* !CONFIG_XEN */

	if (!MOUNT_ROOT_RDONLY)
		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;
#ifdef CONFIG_XEN
	init_mm.brk = start_pfn << PAGE_SHIFT;
#else
	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;
#endif

	parse_cmdline_early(cmdline_p);

	early_identify_cpu(&boot_cpu_data);

	/*
	 * partially used pages are not usable - thus
	 * we are rounding upwards:
	 */
	end_pfn = e820_end_of_ram();

	check_efer();

	init_memory_mapping(0, (end_pfn_map << PAGE_SHIFT));

#ifdef CONFIG_ACPI_NUMA
	/*
	 * Parse SRAT to discover nodes.
	 */
	acpi_numa_init();
#endif

#ifdef CONFIG_NUMA
	numa_initmem_init(start_pfn, end_pfn); 
#else
	contig_initmem_init(start_pfn, end_pfn);
#endif

#ifndef CONFIG_XEN
	/* Reserve direct mapping */
	reserve_bootmem_generic(table_start << PAGE_SHIFT, 
				(table_end - table_start) << PAGE_SHIFT);

	/* reserve kernel */
	kernel_end = round_up(__pa_symbol(&_end),PAGE_SIZE);
	reserve_bootmem_generic(HIGH_MEMORY, kernel_end - HIGH_MEMORY);

	/*
	 * reserve physical page 0 - it's a special BIOS page on many boxes,
	 * enabling clean reboots, SMP operation, laptop functions.
	 */
	reserve_bootmem_generic(0, PAGE_SIZE);

	/* reserve ebda region */
	reserve_ebda_region();
#endif

#ifdef CONFIG_SMP
	/*
	 * But first pinch a few for the stack/trampoline stuff
	 * FIXME: Don't need the extra page at 4K, but need to fix
	 * trampoline before removing it. (see the GDT stuff)
	 */
	reserve_bootmem_generic(PAGE_SIZE, PAGE_SIZE);

	/* Reserve SMP trampoline */
	reserve_bootmem_generic(SMP_TRAMPOLINE_BASE, PAGE_SIZE);
#endif

#ifdef CONFIG_ACPI_SLEEP
       /*
        * Reserve low memory region for sleep support.
        */
       acpi_reserve_bootmem();
#endif
#ifdef CONFIG_XEN
#ifdef CONFIG_BLK_DEV_INITRD
	if (xen_start_info->mod_start) {
		if (INITRD_START + INITRD_SIZE <= (end_pfn << PAGE_SHIFT)) {
			/*reserve_bootmem_generic(INITRD_START, INITRD_SIZE);*/
			initrd_start = INITRD_START + PAGE_OFFSET;
			initrd_end = initrd_start+INITRD_SIZE;
			initrd_below_start_ok = 1;
		} else {
			printk(KERN_ERR "initrd extends beyond end of memory "
				"(0x%08lx > 0x%08lx)\ndisabling initrd\n",
				(unsigned long)(INITRD_START + INITRD_SIZE),
				(unsigned long)(end_pfn << PAGE_SHIFT));
			initrd_start = 0;
		}
	}
#endif
#else	/* CONFIG_XEN */
#ifdef CONFIG_BLK_DEV_INITRD
	if (LOADER_TYPE && INITRD_START) {
		if (INITRD_START + INITRD_SIZE <= (end_pfn << PAGE_SHIFT)) {
			reserve_bootmem_generic(INITRD_START, INITRD_SIZE);
			initrd_start =
				INITRD_START ? INITRD_START + PAGE_OFFSET : 0;
			initrd_end = initrd_start+INITRD_SIZE;
		}
		else {
			printk(KERN_ERR "initrd extends beyond end of memory "
			    "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
			    (unsigned long)(INITRD_START + INITRD_SIZE),
			    (unsigned long)(end_pfn << PAGE_SHIFT));
			initrd_start = 0;
		}
	}
#endif
#endif	/* !CONFIG_XEN */
#ifdef CONFIG_KEXEC
	if (crashk_res.start != crashk_res.end) {
		reserve_bootmem(crashk_res.start,
			crashk_res.end - crashk_res.start + 1);
	}
#endif

	paging_init();
#ifdef CONFIG_X86_LOCAL_APIC
	/*
	 * Find and reserve possible boot-time SMP configuration:
	 */
	find_smp_config();
#endif
#ifdef CONFIG_XEN
	{
		int i, j, k, fpp;
		unsigned long va;

		/* 'Initial mapping' of initrd must be destroyed. */
		for (va = xen_start_info->mod_start;
		     va < (xen_start_info->mod_start+xen_start_info->mod_len);
		     va += PAGE_SIZE) {
			HYPERVISOR_update_va_mapping(va, __pte_ma(0), 0);
		}

		if (!xen_feature(XENFEAT_auto_translated_physmap)) {
			/* Make sure we have a large enough P->M table. */
			phys_to_machine_mapping = alloc_bootmem(
				end_pfn * sizeof(unsigned long));
			memset(phys_to_machine_mapping, ~0,
			       end_pfn * sizeof(unsigned long));
			memcpy(phys_to_machine_mapping,
			       (unsigned long *)xen_start_info->mfn_list,
			       xen_start_info->nr_pages * sizeof(unsigned long));
			free_bootmem(
				__pa(xen_start_info->mfn_list),
				PFN_PHYS(PFN_UP(xen_start_info->nr_pages *
						sizeof(unsigned long))));

			/* Destroyed 'initial mapping' of old p2m table. */
			for (va = xen_start_info->mfn_list;
			     va < (xen_start_info->mfn_list +
				   (xen_start_info->nr_pages*sizeof(unsigned long)));
			     va += PAGE_SIZE) {
				HYPERVISOR_update_va_mapping(va, __pte_ma(0), 0);
			}

			/*
			 * Initialise the list of the frames that specify the
			 * list of frames that make up the p2m table. Used by
                         * save/restore.
			 */
			pfn_to_mfn_frame_list_list = alloc_bootmem(PAGE_SIZE);
			HYPERVISOR_shared_info->arch.pfn_to_mfn_frame_list_list =
				virt_to_mfn(pfn_to_mfn_frame_list_list);

			fpp = PAGE_SIZE/sizeof(unsigned long);
			for (i=0, j=0, k=-1; i< end_pfn; i+=fpp, j++) {
				if ((j % fpp) == 0) {
					k++;
					BUG_ON(k>=fpp);
					pfn_to_mfn_frame_list[k] =
						alloc_bootmem(PAGE_SIZE);
					pfn_to_mfn_frame_list_list[k] =
						virt_to_mfn(pfn_to_mfn_frame_list[k]);
					j=0;
				}
				pfn_to_mfn_frame_list[k][j] =
					virt_to_mfn(&phys_to_machine_mapping[i]);
			}
			HYPERVISOR_shared_info->arch.max_pfn = end_pfn;
		}

	}

	if ( ! (xen_start_info->flags & SIF_INITDOMAIN))
	{
		acpi_disabled = 1;
#ifdef  CONFIG_ACPI
		acpi_ht = 0;
#endif
	}
#endif

#ifndef CONFIG_XEN
	check_ioapic();
#endif

	zap_low_mappings(0);

#ifdef CONFIG_ACPI
	/*
	 * Initialize the ACPI boot-time table parser (gets the RSDP and SDT).
	 * Call this early for SRAT node setup.
	 */
	acpi_boot_table_init();

	/*
	 * Read APIC and some other early information from ACPI tables.
	 */
	acpi_boot_init();
#endif

	init_cpu_to_node();

#ifdef CONFIG_X86_LOCAL_APIC
	/*
	 * get boot-time SMP configuration:
	 */
	if (smp_found_config)
		get_smp_config();
#ifndef CONFIG_XEN
	init_apic_mappings();
#endif
#endif
#if defined(CONFIG_XEN) && defined(CONFIG_SMP) && !defined(CONFIG_HOTPLUG_CPU)
	prefill_possible_map();
#endif

#if defined(CONFIG_XEN_PRIVILEGED_GUEST) || !defined(CONFIG_XEN)
	/*
	 * Request address space for all standard RAM and ROM resources
	 * and also for regions reported as reserved by the e820.
	 */
	probe_roms();
	e820_reserve_resources(); 
#endif

	request_resource(&iomem_resource, &video_ram_resource);

	{
	unsigned i;
	/* request I/O space for devices used on all i[345]86 PCs */
	for (i = 0; i < STANDARD_IO_RESOURCES; i++)
		request_resource(&ioport_resource, &standard_io_resources[i]);
	}

	e820_setup_gap();

#ifdef CONFIG_GART_IOMMU
       iommu_hole_init();
#endif

#ifdef CONFIG_XEN
       {


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