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ssfn: try making normal renderer work (i hope google won't dmca this for adding noto inside lol)

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RaphProductions 2025-05-08 19:01:37 +02:00
parent a6f371b4ad
commit 442b26df09
13 changed files with 11150 additions and 261 deletions
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15
kernel/src/mm/vmm.c
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@ -171,6 +171,21 @@ uint64_t vmm_get_flags(pagemap_t* pm, uint64_t vaddr) {
return pml1[pml1_entry] & 0x7000000000000FFF;
}
uint64_t virt_to_phys(pagemap_t *pagemap, uint64_t virt)
{
uint64_t pml1_idx = (virt & (uint64_t)0x1ff << 12) >> 12;
uint64_t pml2_idx = (virt & (uint64_t)0x1ff << 21) >> 21;
uint64_t pml3_idx = (virt & (uint64_t)0x1ff << 30) >> 30;
uint64_t pml4_idx = (virt & (uint64_t)0x1ff << 39) >> 39;
uint64_t *pml3 = __vmm_get_next_lvl(pagemap->toplevel, pml4_idx, 0);
uint64_t *pml2 = __vmm_get_next_lvl(pml3, pml3_idx, 0);
uint64_t *pml1 = __vmm_get_next_lvl(pml2, pml2_idx, 0);
uint64_t phys_addr = pml1[pml1_idx] & 0x000FFFFFFFFFF000;
return phys_addr;
}
void vmm_map(pagemap_t *pm, uint64_t vaddr, uint64_t paddr, uint64_t flags) {
uint64_t pml4_entry = (vaddr >> 39) & 0x1ff;
uint64_t pml3_entry = (vaddr >> 30) & 0x1ff;