raphm/soaplin
1
0
Fork 0
Code Issues Pull requests Projects Releases 1 Packages Wiki Activity Actions

vmm: debug user code page fault

Browse source
This commit is contained in:
RaphProductions 2025-05-11 15:35:45 +02:00
parent a379d66784
commit 5168cfa4e1
4 changed files with 113 additions and 84 deletions
Download patch file Download diff file Expand all files Collapse all files

8
kernel/src/mm/vmm.c
View file

@ -226,12 +226,12 @@ void vmm_map_user(pagemap_t *pm, uint64_t vaddr, uint64_t paddr,
uint64_t pml2_entry = (vaddr >> 21) & 0x1ff;
uint64_t pml1_entry = (vaddr >> 12) & 0x1ff;
uint64_t *pml3 =
__vmm_get_next_lvl(pm->toplevel, pml4_entry, flags,
uint64_t *pml3 = __vmm_get_next_lvl(pm->toplevel, pml4_entry, flags | VMM_WRITABLE,
true); // PML3 / Page Directory Pointer Entry
uint64_t *pml2 = __vmm_get_next_lvl(pml3, pml3_entry, flags,
uint64_t *pml2 = __vmm_get_next_lvl(pml3, pml3_entry, flags | VMM_WRITABLE,
true); // PML2 / Page Directory Entry
uint64_t *pml1 = __vmm_get_next_lvl(pml2, pml2_entry, flags,
uint64_t *pml1 = __vmm_get_next_lvl(pml2, pml2_entry, flags | VMM_WRITABLE,
true); // PML1 / Page Table Entry
pml1[pml1_entry] = paddr | flags;