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VMM - touch_page adds P2 and P1

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This commit is contained in:
Thomas Lovén
2017-12-27 23:18:01 +01:00
parent 1d4b689215
commit 86d8aea9ea
2 changed files with 19 additions and 5 deletions
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6
src/kernel/memory/vmm.c
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@@ -55,7 +55,11 @@ int touch_page(void *P4, uintptr_t addr, uint16_t flags)
(void)flags;
if(!P4) return -1;
if(!P4e(P4, addr).present)
P4e(P4, addr).value = pmm_alloc();
P4e(P4, addr).value = pmm_alloc() | flags | PAGE_PRESENT;
if(!P3e(P4, addr).present)
P3e(P4, addr).value = pmm_alloc() | flags | PAGE_PRESENT;
if(!P2e(P4, addr).present)
P2e(P4, addr).value = pmm_alloc() | flags | PAGE_PRESENT;
return 0;
}