X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/48b4a227035048fdebcd32532deb7a857c6199ac..cd103ea1b3ff029cfc458b3913975b5600915341:/lunaix-os/kernel/mm/vmm.c

diff --git a/lunaix-os/kernel/mm/vmm.c b/lunaix-os/kernel/mm/vmm.c
index f791cc3..5e407ff 100644
--- a/lunaix-os/kernel/mm/vmm.c
+++ b/lunaix-os/kernel/mm/vmm.c
@@ -255,4 +255,19 @@ void*
 vmm_v2p(void* va)
 {
     return (void*)vmm_lookup(va).pa;
+}
+
+void*
+vmm_mount_pd(uintptr_t mnt, void* pde) {
+    x86_page_table* l1pt = (x86_page_table*)L1_BASE_VADDR;
+    l1pt->entry[(mnt >> 22)] = NEW_L1_ENTRY(T_SELF_REF_PERM, pde);
+    cpu_invplg(mnt);
+    return mnt;
+}
+
+void*
+vmm_unmount_pd(uintptr_t mnt) {
+    x86_page_table* l1pt = (x86_page_table*)L1_BASE_VADDR;
+    l1pt->entry[(mnt >> 22)] = 0;
+    cpu_invplg(mnt);
 }
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