| 0,0 → 1,116 |
|---|
| /* |
| * Copyright (c) 2007 Michal Kebrt |
| * 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. |
| */ |
| |
| |
| /** @addtogroup arm32boot |
| * @{ |
| */ |
| /** @file |
| * @brief Bootstrap. |
| */ |
| |
| |
| #include "main.h" |
| #include "asm.h" |
| #include "_components.h" |
| #include <printf.h> |
| |
| #include "mm.h" |
| |
| /** Kernel entry point address. */ |
| #define KERNEL_VIRTUAL_ADDRESS 0x80200000 |
| |
| |
| char *release = RELEASE; |
| |
| #ifdef REVISION |
| char *revision = ", revision " REVISION; |
| #else |
| char *revision = ""; |
| #endif |
| |
| #ifdef TIMESTAMP |
| char *timestamp = "\nBuilt on " TIMESTAMP; |
| #else |
| char *timestamp = ""; |
| #endif |
| |
| |
| /** Prints bootloader version information. */ |
| static void version_print(void) |
| { |
| printf("HelenOS ARM32 Bootloader\nRelease %s%s%s\nCopyright (c) 2007 HelenOS project\n", |
| release, revision, timestamp); |
| } |
| |
| |
| /** Copies all images (kernel + user tasks) to #KERNEL_VIRTUAL_ADDRESS and jumps there. */ |
| void bootstrap(void) |
| { |
| mmu_start(); |
| version_print(); |
| |
| component_t components[COMPONENTS]; |
| init_components(components); |
| |
| bootinfo_t bootinfo; |
| |
| printf("\nMemory statistics\n"); |
| printf(" kernel entry point at %L\n", KERNEL_VIRTUAL_ADDRESS); |
| printf(" %L: boot info structure\n", &bootinfo); |
| |
| unsigned int i, j; |
| for (i = 0; i < COMPONENTS; i++) { |
| printf(" %L: %s image (size %d bytes)\n", |
| components[i].start, components[i].name, components[i].size); |
| } |
| |
| printf("\nCopying components\n"); |
| |
| unsigned int top = 0; |
| bootinfo.cnt = 0; |
| for (i = 0; i < COMPONENTS; i++) { |
| printf(" %s...", components[i].name); |
| top = ALIGN_UP(top, KERNEL_PAGE_SIZE); |
| memcpy(((void *) KERNEL_VIRTUAL_ADDRESS) + top, components[i].start, components[i].size); |
| if (i > 0) { |
| bootinfo.tasks[bootinfo.cnt].addr = ((void *) KERNEL_VIRTUAL_ADDRESS) + top; |
| bootinfo.tasks[bootinfo.cnt].size = components[i].size; |
| bootinfo.cnt++; |
| } |
| top += components[i].size; |
| printf("done.\n"); |
| } |
| |
| printf("\nBooting the kernel...\n"); |
| jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, &bootinfo, sizeof(bootinfo)); |
| } |
| |
| /** @} |
| */ |
| |