22 lines
658 B
C
22 lines
658 B
C
#include "cpu/paging.h"
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#include "cpu/arch_consts.h"
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#include <stddef.h>
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void address_spaces_copy_data(void* cr3, void* data,size_t size,void* virt_addr) {
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void* old_cr3=get_cr3();
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void* phys_addr=virt_to_phys(data);
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load_address_space(cr3);
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map_pages(virt_addr,phys_addr,(size/PAGE_SZ)+1,1,1);
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load_address_space(old_cr3);
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}
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void* address_spaces_put_data(void* cr3, void* data,size_t size) {
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void* old_cr3=get_cr3();
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void* phys_addr=virt_to_phys(data);
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load_address_space(cr3);
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void* virt_addr=find_free_pages((size/PAGE_SZ)+1);
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map_pages(virt_addr,phys_addr,(size/PAGE_SZ)+1,1,1);
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load_address_space(old_cr3);
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return virt_addr;
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}
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