mirror of
https://github.com/tailix/kernel.git
synced 2024-10-30 12:03:52 -04:00
36 lines
993 B
C
36 lines
993 B
C
#include "multiboot.h"
|
|
|
|
#include <kernelmq/info.h>
|
|
#include <kernelmq/stdlib.h>
|
|
|
|
// Defined in linker script
|
|
extern char _kernel_offset;
|
|
extern char _kernel_size;
|
|
extern char _kernel_phys_base;
|
|
extern char _kernel_virt_base;
|
|
|
|
static struct KernelMQ_Info kinfo;
|
|
|
|
const struct KernelMQ_Info *init(unsigned long multiboot_magic, unsigned long multiboot_info_addr)
|
|
{
|
|
if (multiboot_magic != MULTIBOOT_MAGIC) {
|
|
return 0;
|
|
}
|
|
|
|
kmemset(&kinfo, 0, sizeof(struct KernelMQ_Info));
|
|
|
|
if (!multiboot_parse(&kinfo, multiboot_info_addr)) {
|
|
return 0;
|
|
}
|
|
|
|
kinfo.kernel_offset = (unsigned long)&_kernel_offset;
|
|
kinfo.kernel_size = (unsigned long)&_kernel_size;
|
|
|
|
kinfo.kernel_phys_base = (unsigned long)&_kernel_phys_base;
|
|
kinfo.kernel_virt_base = (unsigned long)&_kernel_virt_base;
|
|
|
|
kinfo.kernel_phys_limit = kinfo.kernel_phys_base + kinfo.kernel_size - 1;
|
|
kinfo.kernel_virt_limit = kinfo.kernel_virt_base + kinfo.kernel_size - 1;
|
|
|
|
return &kinfo;
|
|
}
|