44 lines
950 B
C
44 lines
950 B
C
#include <stdint.h>
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#include <tianole/early_log.h>
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#include <tianole/mm.h>
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#include "arch/x86/mm/page_table.h"
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#define TEST_VIRTUAL_PAGE 0xffffff0000000000ull
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void page_table_selftest(void)
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{
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phys_addr_t page = alloc_page();
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phys_addr_t resolved;
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volatile uint64_t *mapped =
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(volatile uint64_t *)(uintptr_t)TEST_VIRTUAL_PAGE;
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if (page == 0) {
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panic("page table selftest allocation failed");
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}
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page_tables_init();
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if (map_page(TEST_VIRTUAL_PAGE, page, PAGE_WRITABLE) != 0) {
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panic("page table selftest map failed");
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}
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if (virt_to_phys(TEST_VIRTUAL_PAGE, &resolved) != 0 ||
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resolved != page) {
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panic("page table selftest resolve failed");
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}
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*mapped = 0x54494f4c45504d4dull;
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if (*mapped != 0x54494f4c45504d4dull) {
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panic("page table selftest access failed");
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}
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if (unmap_page(TEST_VIRTUAL_PAGE) != 0) {
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panic("page table selftest unmap failed");
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}
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free_page(page);
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early_log_puts("page table selftest ok\n");
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}
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