source: mainline/boot/arch/ia64/src/main.c@ 04c1524

/*
 * Copyright (c) 2005 Martin Decky
 * Copyright (c) 2006 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


#include <arch/main.h>
#include <arch/arch.h>
#include <arch/asm.h>
#include <arch/_components.h>
#include <halt.h>
#include <printf.h>
#include <memstr.h>
#include <version.h>
#include <macros.h>
#include <align.h>
#include <str.h>
#include <errno.h>
#include <inflate.h>

#define DEFAULT_MEMORY_BASE             0x4000000ULL
#define DEFAULT_MEMORY_SIZE             0x4000000ULL
#define DEFAULT_LEGACY_IO_BASE          0x00000FFFFC000000ULL
#define DEFAULT_LEGACY_IO_SIZE          0x4000000ULL

#define DEFAULT_FREQ_SCALE              0x0000000100000001ULL   /* 1/1 */
#define DEFAULT_SYS_FREQ                100000000ULL            /* 100MHz */

#define EFI_MEMMAP_FREE_MEM             0
#define EFI_MEMMAP_IO                   1
#define EFI_MEMMAP_IO_PORTS             2

static bootinfo_t bootinfo;

void bootstrap(void)
{
        version_print();
        
        printf(" %p|%p: boot info structure\n", &bootinfo, &bootinfo);
        printf(" %p|%p: kernel entry point\n",
            (void *) KERNEL_ADDRESS, (void *) KERNEL_ADDRESS);
        printf(" %p|%p: loader entry point\n",
            (void *) LOADER_ADDRESS, (void *) LOADER_ADDRESS);
        
        size_t i;
        for (i = 0; i < COMPONENTS; i++)
                printf(" %p|%p: %s image (%zu/%zu bytes)\n", components[i].start,
                    components[i].start, components[i].name,
                    components[i].inflated, components[i].size);
        
        void *dest[COMPONENTS];
        size_t top = KERNEL_ADDRESS;
        size_t cnt = 0;
        bootinfo.taskmap.cnt = 0;
        for (i = 0; i < min(COMPONENTS, TASKMAP_MAX_RECORDS); i++) {
                top = ALIGN_UP(top, PAGE_SIZE);
                
                if (i > 0) {
                        bootinfo.taskmap.tasks[bootinfo.taskmap.cnt].addr =
                            (void *) top;
                        bootinfo.taskmap.tasks[bootinfo.taskmap.cnt].size =
                            components[i].inflated;
                        
                        str_cpy(bootinfo.taskmap.tasks[bootinfo.taskmap.cnt].name,
                            BOOTINFO_TASK_NAME_BUFLEN, components[i].name);
                        
                        bootinfo.taskmap.cnt++;
                }
                
                dest[i] = (void *) top;
                top += components[i].inflated;
                cnt++;
        }
        
        printf("\nInflating components ... ");
        
        for (i = cnt; i > 0; i--) {
                printf("%s ", components[i - 1].name);
                
                int err = inflate(components[i - 1].start, components[i - 1].size,
                    dest[i - 1], components[i - 1].inflated);
                
                if (err != EOK) {
                        printf("\n%s: Inflating error %d, halting.\n",
                            components[i - 1].name, err);
                        halt();
                }
        }
        
        printf(".\n");
        
        if (!bootinfo.hello_configured) {       /* XXX */
                /*
                 * Load configuration defaults for simulators.
                 */
                 bootinfo.memmap_items = 0;
                 
                 bootinfo.memmap[bootinfo.memmap_items].base =
                     DEFAULT_MEMORY_BASE;
                 bootinfo.memmap[bootinfo.memmap_items].size =
                     DEFAULT_MEMORY_SIZE;
                 bootinfo.memmap[bootinfo.memmap_items].type =
                     EFI_MEMMAP_FREE_MEM;
                 bootinfo.memmap_items++;

                 bootinfo.memmap[bootinfo.memmap_items].base =
                     DEFAULT_LEGACY_IO_BASE;
                 bootinfo.memmap[bootinfo.memmap_items].size =
                     DEFAULT_LEGACY_IO_SIZE;
                 bootinfo.memmap[bootinfo.memmap_items].type =
                     EFI_MEMMAP_IO_PORTS;
                 bootinfo.memmap_items++;
                 
                 bootinfo.freq_scale = DEFAULT_FREQ_SCALE;
                 bootinfo.sys_freq = DEFAULT_SYS_FREQ;
        }
        
        
        printf("Booting the kernel ...\n");
        jump_to_kernel(&bootinfo);
}