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vmmcache: initial implementation

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Matheus
2024-05-24 18:03:24 -03:00
parent 7673a365e8
commit 48b7fb4324
21 changed files with 772 additions and 134 deletions
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kernel-src/arch/x86-64/mmu.c
+7
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@@ -175,6 +175,13 @@ bool arch_mmu_iswritable(pagetableptr_t table, void *vaddr) {
return entry == NULL ? false : *entry & ARCH_MMU_FLAGS_WRITE;
}
#define ARCH_MMU_FLAGS_DIRTY (1 << 6)
bool arch_mmu_isdirty(pagetableptr_t table, void *vaddr) {
uint64_t *entry = get_page(table, vaddr);
return entry == NULL ? false : *entry & ARCH_MMU_FLAGS_DIRTY;
}
void arch_mmu_switch(pagetableptr_t table) {
asm volatile("mov %%rax, %%cr3" : : "a"(table));
}