0,0 → 1,115 |
/* |
* 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. |
*/ |
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/** @addtogroup arm32boot |
* @{ |
*/ |
/** @file |
* @brief Bootstrap. |
*/ |
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#include "main.h" |
#include "asm.h" |
#include "_components.h" |
#include <printf.h> |
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#include "mm.h" |
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/** Kernel entry point address. */ |
#define KERNEL_VIRTUAL_ADDRESS 0x80200000 |
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char *release = RELEASE; |
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#ifdef REVISION |
char *revision = ", revision " REVISION; |
#else |
char *revision = ""; |
#endif |
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#ifdef TIMESTAMP |
char *timestamp = "\nBuilt on " TIMESTAMP; |
#else |
char *timestamp = ""; |
#endif |
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/** 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); |
} |
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/** Copies all images (kernel + user tasks) to #KERNEL_VIRTUAL_ADDRESS and jumps there. */ |
void bootstrap(void) |
{ |
mmu_start(); |
version_print(); |
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component_t components[COMPONENTS]; |
bootinfo_t bootinfo; |
init_components(components); |
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printf("\nMemory statistics\n"); |
printf(" kernel entry point at %L\n", KERNEL_VIRTUAL_ADDRESS); |
printf(" %L: boot info structure\n", &bootinfo); |
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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); |
} |
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printf("\nCopying components\n"); |
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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"); |
} |
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printf("\nBooting the kernel...\n"); |
jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, &bootinfo, sizeof(bootinfo)); |
} |
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/** @} |
*/ |
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