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Add copy_data function

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pjht 2019-05-05 13:03:14 -05:00
parent 999295ff2d
commit a2cd8e3330
2 changed files with 18 additions and 0 deletions
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10
cpu/i386/address_spaces.c Normal file
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#include "paging.h"
void copy_data(void* cr3, void* data,uint32_t size,void* virt_addr) {
uint32_t old_cr3;
asm volatile("movl %%cr3, %%eax; movl %%eax, %0;":"=m"(old_cr3)::"%eax");
void* phys_addr=virt_to_phys(data);
load_address_space(cr3);
map_pages((void*)((uint32_t)virt_addr<<12),phys_addr,(size/4096)+1,1,0);
load_address_space(old_cr3);
}

8
cpu/i386/address_spaces.h Normal file
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#ifndef ADDRESS_SPACES_H
#define ADDRESS_SPACES_H
#include <stdint.h>
void copy_data(void* cr3, void* data,uint32_t size,void* virt_addr);
#endif