66 lines
2.4 KiB
C
66 lines
2.4 KiB
C
#include <common/cdef.h>
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#include <ke/print.h>
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#include <arch/print.h>
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#include <arch/brute.h>
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#include <mm/phys.h>
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#include <arch/mlayout.h>
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// private headers
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#include "multiboot2.h"
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#include "pmap_p.h"
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static const char* _loader_name;
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// kernel entry point
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extern void kmain();
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ATTR_USED void
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arch_main(void *mb_info)
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{
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/* init printf related stuff */
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arch_print_init();
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kprintf("Processing multiboot info @ 0x%p...\n", mb_info);
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for (struct multiboot_tag *tag = (struct multiboot_tag *) ((uintptr) mb_info + 8);
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tag->type != MULTIBOOT_TAG_TYPE_END;
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tag = (struct multiboot_tag *) ((multiboot_uint8_t *) tag
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+ ((tag->size + 7) & ~7u))) {
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// kprintf("Tag 0x%p: %d, Size %d\n", (void *) tag, tag->type, tag->size);
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switch (tag->type) {
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case MULTIBOOT_TAG_TYPE_MMAP:
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kprintf("Found multiboot memory map.\n");
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for (struct multiboot_mmap_entry *entry = ((struct multiboot_tag_mmap *) tag)->entries;
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(multiboot_uint8_t *) entry < (multiboot_uint8_t *) tag + tag->size;
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entry = (multiboot_memory_map_t *) ((uintptr) entry +
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((struct multiboot_tag_mmap *) tag)->entry_size)) {
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kprintf("Adding to pmap seg: base = 0x%lx,"
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" length = 0x%lx, type = 0x%x.\n",
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(ulong) entry->addr,
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(ulong) entry->len,
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entry->type);
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if (entry->type == MULTIBOOT_MEMORY_AVAILABLE) {
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// add physical segments to mm phys subsystem
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arch_mem_addseg(entry->addr, entry->len);
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}
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}
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break;
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case MULTIBOOT_TAG_TYPE_BOOT_LOADER_NAME:
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kprintf("Found multiboot loader name.\n");
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_loader_name = ((struct multiboot_tag_string *) tag)->string;
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break;
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default:
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kprintf("Ignoring multiboot tag type: %d size: 0x%x\n", tag->type, tag->size);
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break;
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}
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}
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kprintf("BoND is loaded by: %s\n", _loader_name);
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kprintf("kernel start: 0x%p end: 0x%p\n", (void*)KERN_IMG_START, (void*)ARCH_ML_KIMAGE_STOP);
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kprintf("Initializing memory...");
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arch_mem_init();
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kmain();
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}
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