WebSVN – HelenOS – Diff – /tags/0.2.0.5/boot/arch/arm32/loader/main.c


/*
 * 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];
    bootinfo_t bootinfo;
    init_components(components);
   
    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));
}
 
/** @}
 */
 
 

Rev 2465	Rev 2474
1	/*	1	/*
2	* Copyright (c) 2007 Michal Kebrt	2	* Copyright (c) 2007 Michal Kebrt
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29		29
30	/** @addtogroup arm32boot	30	/** @addtogroup arm32boot
31	* @{	31	* @{
32	*/	32	*/
33	/** @file	33	/** @file
34	* @brief Bootstrap.	34	* @brief Bootstrap.
35	*/	35	*/
36		36
37		37
38	#include "main.h"	38	#include "main.h"
39	#include "asm.h"	39	#include "asm.h"
40	#include "_components.h"	40	#include "_components.h"
41	#include <printf.h>	41	#include <printf.h>
42		42
43	#include "mm.h"	43	#include "mm.h"
44		44
45	/** Kernel entry point address. */	45	/** Kernel entry point address. */
46	#define KERNEL_VIRTUAL_ADDRESS 0x80200000	46	#define KERNEL_VIRTUAL_ADDRESS 0x80200000
47		47
48		48
49	char *release = RELEASE;	49	char *release = RELEASE;
50		50
51	#ifdef REVISION	51	#ifdef REVISION
52	char *revision = ", revision " REVISION;	52	char *revision = ", revision " REVISION;
53	#else	53	#else
54	char *revision = "";	54	char *revision = "";
55	#endif	55	#endif
56		56
57	#ifdef TIMESTAMP	57	#ifdef TIMESTAMP
58	char *timestamp = "\nBuilt on " TIMESTAMP;	58	char *timestamp = "\nBuilt on " TIMESTAMP;
59	#else	59	#else
60	char *timestamp = "";	60	char *timestamp = "";
61	#endif	61	#endif
62		62
63		63
64	/** Prints bootloader version information. */	64	/** Prints bootloader version information. */
65	static void version_print(void)	65	static void version_print(void)
66	{	66	{
67	printf("HelenOS ARM32 Bootloader\nRelease %s%s%s\nCopyright (c) 2007 HelenOS project\n",	67	printf("HelenOS ARM32 Bootloader\nRelease %s%s%s\nCopyright (c) 2007 HelenOS project\n",
68	release, revision, timestamp);	68	release, revision, timestamp);
69	}	69	}
70		70
71		71
72	/** Copies all images (kernel + user tasks) to #KERNEL_VIRTUAL_ADDRESS and jumps there. */	72	/** Copies all images (kernel + user tasks) to #KERNEL_VIRTUAL_ADDRESS and jumps there. */
73	void bootstrap(void)	73	void bootstrap(void)
74	{	74	{
75	mmu_start();	75	mmu_start();
76	version_print();	76	version_print();
77		77
78	component_t components[COMPONENTS];	78	component_t components[COMPONENTS];
79	bootinfo_t bootinfo;	79	bootinfo_t bootinfo;
80	init_components(components);	80	init_components(components);
81		81
82	printf("\nMemory statistics\n");	82	printf("\nMemory statistics\n");
83	printf(" kernel entry point at %L\n", KERNEL_VIRTUAL_ADDRESS);	83	printf(" kernel entry point at %L\n", KERNEL_VIRTUAL_ADDRESS);
84	printf(" %L: boot info structure\n", &bootinfo);	84	printf(" %L: boot info structure\n", &bootinfo);
85		85
86	unsigned int i, j;	86	unsigned int i, j;
87	for (i = 0; i < COMPONENTS; i++) {	87	for (i = 0; i < COMPONENTS; i++) {
88	printf(" %L: %s image (size %d bytes)\n",	88	printf(" %L: %s image (size %d bytes)\n",
89	components[i].start, components[i].name, components[i].size);	89	components[i].start, components[i].name, components[i].size);
90	}	90	}
91		91
92	printf("\nCopying components\n");	92	printf("\nCopying components\n");
93		93
94	unsigned int top = 0;	94	unsigned int top = 0;
95	bootinfo.cnt = 0;	95	bootinfo.cnt = 0;
96	for (i = 0; i < COMPONENTS; i++) {	96	for (i = 0; i < COMPONENTS; i++) {
97	printf(" %s...", components[i].name);	97	printf(" %s...", components[i].name);
98	top = ALIGN_UP(top, KERNEL_PAGE_SIZE);	98	top = ALIGN_UP(top, KERNEL_PAGE_SIZE);
99	memcpy(((void *) KERNEL_VIRTUAL_ADDRESS) + top, components[i].start, components[i].size);	99	memcpy(((void *) KERNEL_VIRTUAL_ADDRESS) + top, components[i].start, components[i].size);
100	if (i > 0) {	100	if (i > 0) {
101	bootinfo.tasks[bootinfo.cnt].addr = ((void *) KERNEL_VIRTUAL_ADDRESS) + top;	101	bootinfo.tasks[bootinfo.cnt].addr = ((void *) KERNEL_VIRTUAL_ADDRESS) + top;
102	bootinfo.tasks[bootinfo.cnt].size = components[i].size;	102	bootinfo.tasks[bootinfo.cnt].size = components[i].size;
103	bootinfo.cnt++;	103	bootinfo.cnt++;
104	}	104	}
105	top += components[i].size;	105	top += components[i].size;
106	printf("done.\n");	106	printf("done.\n");
107	}	107	}
108		108
109	printf("\nBooting the kernel...\n");	109	printf("\nBooting the kernel...\n");
110	jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, &bootinfo, sizeof(bootinfo));	110	jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, &bootinfo, sizeof(bootinfo));
111	}	111	}
112		112
113	/** @}	113	/** @}
114	*/	114	*/
115		115
116		116

Subversion Repositories HelenOS

(root)/tags/0.2.0.5/boot/arch/arm32/loader/main.c – Rev 2465 → 2474