WebSVN – HelenOS – Diff – /branches/sparc/boot/arch/sparc64/loader/main.c


/*
 * 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 "main.h" 
#include <printf.h>
#include "asm.h"
#include "_components.h"
#include <balloc.h>
#include <ofw.h>
#include <ofw_tree.h>
#include "ofwarch.h"
#include <align.h>
#include <string.h>
 
bootinfo_t bootinfo;
 
/** UltraSPARC subarchitecture - 1 for US, 3 for US3 */
uint8_t subarchitecture;
 
component_t components[COMPONENTS];
 
char *release = RELEASE;
 
#ifdef REVISION
    char *revision = ", revision " REVISION;
#else
    char *revision = "";
#endif
 
#ifdef TIMESTAMP
    char *timestamp = "\nBuilt on " TIMESTAMP;
#else
    char *timestamp = "";
#endif
 
/** Print version information. */
static void version_print(void)
{
    printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"
        "Copyright (c) 2006 HelenOS project\n",
        release, revision, timestamp);
}
 
/* the lowest ID (read from the VER register) of some US3 CPU model */
#define FIRST_US3_CPU 0x14
 
/* the greatest ID (read from the VER register) of some US3 CPU model */
#define LAST_US3_CPU 0x19
 
/**
 * Sets the global variable "subarchitecture" to the correct value.
 */
static void detect_subarchitecture(void)
{
    uint64_t v;
    asm volatile ("rdpr %%ver, %0\n" : "=r" (v));
   
    v = (v << 16) >> 48;
    if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) {
        subarchitecture = SUBARCH_US3;
    } else if (v < FIRST_US3_CPU) {
        subarchitecture = SUBARCH_US;
    }
}
 
void bootstrap(void)
{
    void *base = (void *) KERNEL_VIRTUAL_ADDRESS;
    void *balloc_base;
    unsigned int top = 0;
    int i, j;
 
    version_print();
   
    detect_subarchitecture();
    init_components(components);
 
    if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {
        printf("Error: unable to get start of physical memory.\n");
        halt();
    }
 
    if (!ofw_memmap(&bootinfo.memmap)) {
        printf("Error: unable to get memory map, halting.\n");
        halt();
    }
 
    if (bootinfo.memmap.total == 0) {
        printf("Error: no memory detected, halting.\n");
        halt();
    }
 
    /*
     * SILO for some reason adds 0x400000 and subtracts
     * bootinfo.physmem_start to/from silo_ramdisk_image.
     * We just need plain physical address so we fix it up.
     */
    if (silo_ramdisk_image) {
        silo_ramdisk_image += bootinfo.physmem_start;
        silo_ramdisk_image -= 0x400000;
        /* Install 1:1 mapping for the ramdisk. */
        if (ofw_map((void *)((uintptr_t)silo_ramdisk_image),
            (void *)((uintptr_t)silo_ramdisk_image),
            silo_ramdisk_size, -1) != 0) {
            printf("Failed to map ramdisk.\n");
            halt();
        }
    }
   
    printf("\nSystem info\n");
    printf(" memory: %dM starting at %P\n",
        bootinfo.memmap.total >> 20, bootinfo.physmem_start);
 
    printf("\nMemory statistics\n");
    printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);
    printf(" %P: boot info structure\n", &bootinfo);
   
    /*
     * Figure out destination address for each component.
     * In this phase, we don't copy the components yet because we want to
     * to be careful not to overwrite anything, especially the components
     * which haven't been copied yet.
     */
    bootinfo.taskmap.count = 0;
    for (i = 0; i < COMPONENTS; i++) {
        printf(" %P: %s image (size %d bytes)\n", components[i].start,
            components[i].name, components[i].size);
        top = ALIGN_UP(top, PAGE_SIZE);
        if (i > 0) {
            if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
                printf("Skipping superfluous components.\n");
                break;
            }
            bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
                base + top;
            bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
                components[i].size;
            bootinfo.taskmap.count++;
        }
        top += components[i].size;
    }
 
    j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */
 
    if (silo_ramdisk_image) {
        /* Treat the ramdisk as the last bootinfo task. */
        if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
            printf("Skipping ramdisk.\n");
            goto skip_ramdisk;
        }
        top = ALIGN_UP(top, PAGE_SIZE);
        bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
            base + top;
        bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
            silo_ramdisk_size;
        bootinfo.taskmap.count++;
        printf("\nCopying ramdisk...");
        /*
         * Claim and map the whole ramdisk as it may exceed the area
         * given to us by SILO.
         */
        (void) ofw_claim_phys(base + top, silo_ramdisk_size);
        (void) ofw_map(base + top, base + top, silo_ramdisk_size, -1);
        memmove(base + top, (void *)((uintptr_t)silo_ramdisk_image),
            silo_ramdisk_size);
        printf("done.\n");
        top += silo_ramdisk_size;
    }
skip_ramdisk:
 
    /*
     * Now we can proceed to copy the components. We do it in reverse order
     * so that we don't overwrite anything even if the components overlap
     * with base.
     */
    printf("\nCopying bootinfo tasks\n");
    for (i = COMPONENTS - 1; i > 0; i--, j--) {
        printf(" %s...", components[i].name);
 
        /*
         * At this point, we claim the physical memory that we are
         * going to use. We should be safe in case of the virtual
         * address space because the OpenFirmware, according to its
         * SPARC binding, should restrict its use of virtual memory
         * to addresses from [0xffd00000; 0xffefffff] and
         * [0xfe000000; 0xfeffffff].
         *
         * XXX We don't map this piece of memory. We simply rely on
         *     SILO to have it done for us already in this case.
         */
        (void) ofw_claim_phys(bootinfo.physmem_start +
            bootinfo.taskmap.tasks[j].addr,
            ALIGN_UP(components[i].size, PAGE_SIZE));
           
        memcpy((void *)bootinfo.taskmap.tasks[j].addr,
            components[i].start, components[i].size);
        printf("done.\n");
    }
 
    printf("\nCopying kernel...");
    (void) ofw_claim_phys(bootinfo.physmem_start + base,
        ALIGN_UP(components[0].size, PAGE_SIZE));
    memcpy(base, components[0].start, components[0].size);
    printf("done.\n");
 
    /*
     * Claim and map the physical memory for the boot allocator.
     * Initialize the boot allocator.
     */
    balloc_base = base + ALIGN_UP(top, PAGE_SIZE);
    (void) ofw_claim_phys(bootinfo.physmem_start + balloc_base,
        BALLOC_MAX_SIZE);
    (void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1);
    balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base);
 
    printf("\nCanonizing OpenFirmware device tree...");
    bootinfo.ofw_root = ofw_tree_build();
    printf("done.\n");
 
#ifdef CONFIG_SMP
    printf("\nChecking for secondary processors...");
    if (!ofw_cpu())
        printf("Error: unable to get CPU properties\n");
    printf("done.\n");
#endif
 
    printf("\nBooting the kernel...\n");
    jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,
        bootinfo.physmem_start | BSP_PROCESSOR, &bootinfo,
        sizeof(bootinfo));
}
 
 

Subversion Repositories HelenOS

(root)/branches/sparc/boot/arch/sparc64/loader/main.c – Rev 3582 → 3618

Rev 3582		Rev 3618
1	/*	1	/*
2	* Copyright (c) 2005 Martin Decky	2	* Copyright (c) 2005 Martin Decky
3	* Copyright (c) 2006 Jakub Jermar	3	* Copyright (c) 2006 Jakub Jermar
4	* All rights reserved.	4	* All rights reserved.
5	*	5	*
6	* Redistribution and use in source and binary forms, with or without	6	* Redistribution and use in source and binary forms, with or without
7	* modification, are permitted provided that the following conditions	7	* modification, are permitted provided that the following conditions
8	* are met:	8	* are met:
9	*	9	*
10	* - Redistributions of source code must retain the above copyright	10	* - Redistributions of source code must retain the above copyright
11	* notice, this list of conditions and the following disclaimer.	11	* notice, this list of conditions and the following disclaimer.
12	* - Redistributions in binary form must reproduce the above copyright	12	* - Redistributions in binary form must reproduce the above copyright
13	* notice, this list of conditions and the following disclaimer in the	13	* notice, this list of conditions and the following disclaimer in the
14	* documentation and/or other materials provided with the distribution.	14	* documentation and/or other materials provided with the distribution.
15	* - The name of the author may not be used to endorse or promote products	15	* - The name of the author may not be used to endorse or promote products
16	* derived from this software without specific prior written permission.	16	* derived from this software without specific prior written permission.
17	*	17	*
18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28	*/	28	*/
29		29
30	#include "main.h"	30	#include "main.h"
31	#include <printf.h>	31	#include <printf.h>
32	#include "asm.h"	32	#include "asm.h"
33	#include "_components.h"	33	#include "_components.h"
34	#include <balloc.h>	34	#include <balloc.h>
35	#include <ofw.h>	35	#include <ofw.h>
36	#include <ofw_tree.h>	36	#include <ofw_tree.h>
37	#include "ofwarch.h"	37	#include "ofwarch.h"
38	#include <align.h>	38	#include <align.h>
39	#include <string.h>	39	#include <string.h>
40		40
41	bootinfo_t bootinfo;	41	bootinfo_t bootinfo;
42		42
43	/** UltraSPARC subarchitecture - 1 for US, 3 for US3 */	43	/** UltraSPARC subarchitecture - 1 for US, 3 for US3 */
44	uint8_t subarchitecture;	44	uint8_t subarchitecture;
45		45
46	component_t components[COMPONENTS];	46	component_t components[COMPONENTS];
47		47
48	char *release = RELEASE;	48	char *release = RELEASE;
49		49
50	#ifdef REVISION	50	#ifdef REVISION
51	char *revision = ", revision " REVISION;	51	char *revision = ", revision " REVISION;
52	#else	52	#else
53	char *revision = "";	53	char *revision = "";
54	#endif	54	#endif
55		55
56	#ifdef TIMESTAMP	56	#ifdef TIMESTAMP
57	char *timestamp = "\nBuilt on " TIMESTAMP;	57	char *timestamp = "\nBuilt on " TIMESTAMP;
58	#else	58	#else
59	char *timestamp = "";	59	char *timestamp = "";
60	#endif	60	#endif
61		61
62	/** Print version information. */	62	/** Print version information. */
63	static void version_print(void)	63	static void version_print(void)
64	{	64	{
65	printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"	65	printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"
66	"Copyright (c) 2006 HelenOS project\n",	66	"Copyright (c) 2006 HelenOS project\n",
67	release, revision, timestamp);	67	release, revision, timestamp);
68	}	68	}
69		69
-		70	/* the lowest ID (read from the VER register) of some US3 CPU model */
70	#define FIRST_US3_CPU 0x14	71	#define FIRST_US3_CPU 0x14
-		72
-		73	/* the greatest ID (read from the VER register) of some US3 CPU model */
71	#define LAST_US3_CPU 0x19	74	#define LAST_US3_CPU 0x19
-		75
-		76	/**
-		77	* Sets the global variable "subarchitecture" to the correct value.
-		78	*/
72	static void detect_subarchitecture(void)	79	static void detect_subarchitecture(void)
73	{	80	{
74	uint64_t v;	81	uint64_t v;
75	asm volatile ("rdpr %%ver, %0\n" : "=r" (v));	82	asm volatile ("rdpr %%ver, %0\n" : "=r" (v));
76		83
77	v = (v << 16) >> 48;	84	v = (v << 16) >> 48;
78	if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) {	85	if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) {
79	subarchitecture = SUBARCH_US3;	86	subarchitecture = SUBARCH_US3;
80	} else if (v < FIRST_US3_CPU) {	87	} else if (v < FIRST_US3_CPU) {
81	subarchitecture = SUBARCH_US;	88	subarchitecture = SUBARCH_US;
82	}	89	}
83	}	90	}
84		91
85	void bootstrap(void)	92	void bootstrap(void)
86	{	93	{
87	void base = (void ) KERNEL_VIRTUAL_ADDRESS;	94	void base = (void ) KERNEL_VIRTUAL_ADDRESS;
88	void *balloc_base;	95	void *balloc_base;
89	unsigned int top = 0;	96	unsigned int top = 0;
90	int i, j;	97	int i, j;
91		98
92	version_print();	99	version_print();
93		100
94	detect_subarchitecture();	101	detect_subarchitecture();
95	init_components(components);	102	init_components(components);
96		103
97	if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {	104	if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {
98	printf("Error: unable to get start of physical memory.\n");	105	printf("Error: unable to get start of physical memory.\n");
99	halt();	106	halt();
100	}	107	}
101		108
102	if (!ofw_memmap(&bootinfo.memmap)) {	109	if (!ofw_memmap(&bootinfo.memmap)) {
103	printf("Error: unable to get memory map, halting.\n");	110	printf("Error: unable to get memory map, halting.\n");
104	halt();	111	halt();
105	}	112	}
106		113
107	if (bootinfo.memmap.total == 0) {	114	if (bootinfo.memmap.total == 0) {
108	printf("Error: no memory detected, halting.\n");	115	printf("Error: no memory detected, halting.\n");
109	halt();	116	halt();
110	}	117	}
111		118
112	/*	119	/*
113	* SILO for some reason adds 0x400000 and subtracts	120	* SILO for some reason adds 0x400000 and subtracts
114	* bootinfo.physmem_start to/from silo_ramdisk_image.	121	* bootinfo.physmem_start to/from silo_ramdisk_image.
115	* We just need plain physical address so we fix it up.	122	* We just need plain physical address so we fix it up.
116	*/	123	*/
117	if (silo_ramdisk_image) {	124	if (silo_ramdisk_image) {
118	silo_ramdisk_image += bootinfo.physmem_start;	125	silo_ramdisk_image += bootinfo.physmem_start;
119	silo_ramdisk_image -= 0x400000;	126	silo_ramdisk_image -= 0x400000;
120	/* Install 1:1 mapping for the ramdisk. */	127	/* Install 1:1 mapping for the ramdisk. */
121	if (ofw_map((void *)((uintptr_t)silo_ramdisk_image),	128	if (ofw_map((void *)((uintptr_t)silo_ramdisk_image),
122	(void *)((uintptr_t)silo_ramdisk_image),	129	(void *)((uintptr_t)silo_ramdisk_image),
123	silo_ramdisk_size, -1) != 0) {	130	silo_ramdisk_size, -1) != 0) {
124	printf("Failed to map ramdisk.\n");	131	printf("Failed to map ramdisk.\n");
125	halt();	132	halt();
126	}	133	}
127	}	134	}
128		135
129	printf("\nSystem info\n");	136	printf("\nSystem info\n");
130	printf(" memory: %dM starting at %P\n",	137	printf(" memory: %dM starting at %P\n",
131	bootinfo.memmap.total >> 20, bootinfo.physmem_start);	138	bootinfo.memmap.total >> 20, bootinfo.physmem_start);
132		139
133	printf("\nMemory statistics\n");	140	printf("\nMemory statistics\n");
134	printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);	141	printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);
135	printf(" %P: boot info structure\n", &bootinfo);	142	printf(" %P: boot info structure\n", &bootinfo);
136		143
137	/*	144	/*
138	* Figure out destination address for each component.	145	* Figure out destination address for each component.
139	* In this phase, we don't copy the components yet because we want to	146	* In this phase, we don't copy the components yet because we want to
140	* to be careful not to overwrite anything, especially the components	147	* to be careful not to overwrite anything, especially the components
141	* which haven't been copied yet.	148	* which haven't been copied yet.
142	*/	149	*/
143	bootinfo.taskmap.count = 0;	150	bootinfo.taskmap.count = 0;
144	for (i = 0; i < COMPONENTS; i++) {	151	for (i = 0; i < COMPONENTS; i++) {
145	printf(" %P: %s image (size %d bytes)\n", components[i].start,	152	printf(" %P: %s image (size %d bytes)\n", components[i].start,
146	components[i].name, components[i].size);	153	components[i].name, components[i].size);
147	top = ALIGN_UP(top, PAGE_SIZE);	154	top = ALIGN_UP(top, PAGE_SIZE);
148	if (i > 0) {	155	if (i > 0) {
149	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {	156	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
150	printf("Skipping superfluous components.\n");	157	printf("Skipping superfluous components.\n");
151	break;	158	break;
152	}	159	}
153	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =	160	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
154	base + top;	161	base + top;
155	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =	162	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
156	components[i].size;	163	components[i].size;
157	bootinfo.taskmap.count++;	164	bootinfo.taskmap.count++;
158	}	165	}
159	top += components[i].size;	166	top += components[i].size;
160	}	167	}
161		168
162	j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */	169	j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */
163		170
164	if (silo_ramdisk_image) {	171	if (silo_ramdisk_image) {
165	/* Treat the ramdisk as the last bootinfo task. */	172	/* Treat the ramdisk as the last bootinfo task. */
166	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {	173	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
167	printf("Skipping ramdisk.\n");	174	printf("Skipping ramdisk.\n");
168	goto skip_ramdisk;	175	goto skip_ramdisk;
169	}	176	}
170	top = ALIGN_UP(top, PAGE_SIZE);	177	top = ALIGN_UP(top, PAGE_SIZE);
171	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =	178	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
172	base + top;	179	base + top;
173	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =	180	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
174	silo_ramdisk_size;	181	silo_ramdisk_size;
175	bootinfo.taskmap.count++;	182	bootinfo.taskmap.count++;
176	printf("\nCopying ramdisk...");	183	printf("\nCopying ramdisk...");
177	/*	184	/*
178	* Claim and map the whole ramdisk as it may exceed the area	185	* Claim and map the whole ramdisk as it may exceed the area
179	* given to us by SILO.	186	* given to us by SILO.
180	*/	187	*/
181	(void) ofw_claim_phys(base + top, silo_ramdisk_size);	188	(void) ofw_claim_phys(base + top, silo_ramdisk_size);
182	(void) ofw_map(base + top, base + top, silo_ramdisk_size, -1);	189	(void) ofw_map(base + top, base + top, silo_ramdisk_size, -1);
183	memmove(base + top, (void *)((uintptr_t)silo_ramdisk_image),	190	memmove(base + top, (void *)((uintptr_t)silo_ramdisk_image),
184	silo_ramdisk_size);	191	silo_ramdisk_size);
185	printf("done.\n");	192	printf("done.\n");
186	top += silo_ramdisk_size;	193	top += silo_ramdisk_size;
187	}	194	}
188	skip_ramdisk:	195	skip_ramdisk:
189		196
190	/*	197	/*
191	* Now we can proceed to copy the components. We do it in reverse order	198	* Now we can proceed to copy the components. We do it in reverse order
192	* so that we don't overwrite anything even if the components overlap	199	* so that we don't overwrite anything even if the components overlap
193	* with base.	200	* with base.
194	*/	201	*/
195	printf("\nCopying bootinfo tasks\n");	202	printf("\nCopying bootinfo tasks\n");
196	for (i = COMPONENTS - 1; i > 0; i--, j--) {	203	for (i = COMPONENTS - 1; i > 0; i--, j--) {
197	printf(" %s...", components[i].name);	204	printf(" %s...", components[i].name);
198		205
199	/*	206	/*
200	* At this point, we claim the physical memory that we are	207	* At this point, we claim the physical memory that we are
201	* going to use. We should be safe in case of the virtual	208	* going to use. We should be safe in case of the virtual
202	* address space because the OpenFirmware, according to its	209	* address space because the OpenFirmware, according to its
203	* SPARC binding, should restrict its use of virtual memory	210	* SPARC binding, should restrict its use of virtual memory
204	* to addresses from [0xffd00000; 0xffefffff] and	211	* to addresses from [0xffd00000; 0xffefffff] and
205	* [0xfe000000; 0xfeffffff].	212	* [0xfe000000; 0xfeffffff].
206	*	213	*
207	* XXX We don't map this piece of memory. We simply rely on	214	* XXX We don't map this piece of memory. We simply rely on
208	* SILO to have it done for us already in this case.	215	* SILO to have it done for us already in this case.
209	*/	216	*/
210	(void) ofw_claim_phys(bootinfo.physmem_start +	217	(void) ofw_claim_phys(bootinfo.physmem_start +
211	bootinfo.taskmap.tasks[j].addr,	218	bootinfo.taskmap.tasks[j].addr,
212	ALIGN_UP(components[i].size, PAGE_SIZE));	219	ALIGN_UP(components[i].size, PAGE_SIZE));
213		220
214	memcpy((void *)bootinfo.taskmap.tasks[j].addr,	221	memcpy((void *)bootinfo.taskmap.tasks[j].addr,
215	components[i].start, components[i].size);	222	components[i].start, components[i].size);
216	printf("done.\n");	223	printf("done.\n");
217	}	224	}
218		225
219	printf("\nCopying kernel...");	226	printf("\nCopying kernel...");
220	(void) ofw_claim_phys(bootinfo.physmem_start + base,	227	(void) ofw_claim_phys(bootinfo.physmem_start + base,
221	ALIGN_UP(components[0].size, PAGE_SIZE));	228	ALIGN_UP(components[0].size, PAGE_SIZE));
222	memcpy(base, components[0].start, components[0].size);	229	memcpy(base, components[0].start, components[0].size);
223	printf("done.\n");	230	printf("done.\n");
224		231
225	/*	232	/*
226	* Claim and map the physical memory for the boot allocator.	233	* Claim and map the physical memory for the boot allocator.
227	* Initialize the boot allocator.	234	* Initialize the boot allocator.
228	*/	235	*/
229	balloc_base = base + ALIGN_UP(top, PAGE_SIZE);	236	balloc_base = base + ALIGN_UP(top, PAGE_SIZE);
230	(void) ofw_claim_phys(bootinfo.physmem_start + balloc_base,	237	(void) ofw_claim_phys(bootinfo.physmem_start + balloc_base,
231	BALLOC_MAX_SIZE);	238	BALLOC_MAX_SIZE);
232	(void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1);	239	(void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1);
233	balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base);	240	balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base);
234		241
235	printf("\nCanonizing OpenFirmware device tree...");	242	printf("\nCanonizing OpenFirmware device tree...");
236	bootinfo.ofw_root = ofw_tree_build();	243	bootinfo.ofw_root = ofw_tree_build();
237	printf("done.\n");	244	printf("done.\n");
238		245
239	#ifdef CONFIG_SMP	246	#ifdef CONFIG_SMP
240	printf("\nChecking for secondary processors...");	247	printf("\nChecking for secondary processors...");
241	if (!ofw_cpu())	248	if (!ofw_cpu())
242	printf("Error: unable to get CPU properties\n");	249	printf("Error: unable to get CPU properties\n");
243	printf("done.\n");	250	printf("done.\n");
244	#endif	251	#endif
245		252
246	printf("\nBooting the kernel...\n");	253	printf("\nBooting the kernel...\n");
247	jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,	254	jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,
248	bootinfo.physmem_start \| BSP_PROCESSOR, &bootinfo,	255	bootinfo.physmem_start \| BSP_PROCESSOR, &bootinfo,
249	sizeof(bootinfo));	256	sizeof(bootinfo));
250	}	257	}
251		258
252		259