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36 lines
993 B
C
36 lines
993 B
C
#include "multiboot.h"
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#include <kernelmq/info.h>
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#include <kernelmq/stdlib.h>
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// Defined in linker script
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extern char _kernel_offset;
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extern char _kernel_size;
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extern char _kernel_phys_base;
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extern char _kernel_virt_base;
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static struct KernelMQ_Info kinfo;
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const struct KernelMQ_Info *init(unsigned long multiboot_magic, unsigned long multiboot_info_addr)
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{
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if (multiboot_magic != MULTIBOOT_MAGIC) {
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return 0;
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}
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kmemset(&kinfo, 0, sizeof(struct KernelMQ_Info));
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if (!multiboot_parse(&kinfo, multiboot_info_addr)) {
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return 0;
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}
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kinfo.kernel_offset = (unsigned long)&_kernel_offset;
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kinfo.kernel_size = (unsigned long)&_kernel_size;
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kinfo.kernel_phys_base = (unsigned long)&_kernel_phys_base;
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kinfo.kernel_virt_base = (unsigned long)&_kernel_virt_base;
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kinfo.kernel_phys_limit = kinfo.kernel_phys_base + kinfo.kernel_size - 1;
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kinfo.kernel_virt_limit = kinfo.kernel_virt_base + kinfo.kernel_size - 1;
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return &kinfo;
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}
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