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Fixed the pmm_init() page fault, but i have no clue why pag_init() sometimes causes it.

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Tom-on
2025-04-15 10:39:25 +02:00
parent a73eb77418
commit 30445e9d25
3 changed files with 8 additions and 6 deletions
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kernel/src/bitmap.c
+1 -1
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@@ -28,7 +28,7 @@ void bmap_setarea(bitmap_t* map, size_t base, size_t len, int val) {
void bmap_setall(bitmap_t* map, int val) {
uint8_t b = (val) ? 0xff : 0;
memset(map->map, b, map->bytes);
for (size_t i = 0; i < map->bytes; i++) ((uint8_t*)map->map)[i] = b;
if (val) map->used = map->blocks;
else map->used = 0;
}
kernel/src/paging.c
+3 -2
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@@ -9,7 +9,7 @@ static uint32_t pagedirs[PAGE_DIR_COUNT][1024] __align(4096);
static uint8_t pagedirUsed[PAGE_DIR_COUNT];
// TODO: Should this be initialized? If so, to what?
size_t pag_pageCount;
size_t pag_pageCount = 0;
// Invalidates the pagedir entry in the CPUs TLB cache
static inline void invalidate(uint32_t vaddr) {
@@ -38,8 +38,9 @@ int pag_init(void) {
*/
init_pagedir[1023] = ((uint32_t)init_pagedir - KERNEL_BASE) |
PAGE_FLAG_PRESENT | PAGE_FLAG_WRITE;
invalidate(0xFFFFF000);
invalidate(1023 * PAGE_SIZE);
// TODO: This sometimes causes a #PF
memset(pagedirs, 0, PAGE_SIZE * PAGE_DIR_COUNT);
memset(pagedirUsed, 0, PAGE_DIR_COUNT);