feat: No more kernel page table switching upon interrupt.

[lunaix-os.git] / lunaix-os / kernel / mm / vmm.c

diff --git a/lunaix-os/kernel/mm/vmm.c b/lunaix-os/kernel/mm/vmm.c
index dcd2f2771acbf64af1dd09f0e3ed09adb20e39b2..5e407ff52915656a412eabb3c4a837e1c9d1b8a3 100644 (file)
--- a/lunaix-os/kernel/mm/vmm.c
+++ b/lunaix-os/kernel/mm/vmm.c
@@ -260,7 +260,8 @@ vmm_v2p(void* va)
 void*
 vmm_mount_pd(uintptr_t mnt, void* pde) {
     x86_page_table* l1pt = (x86_page_table*)L1_BASE_VADDR;
 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(PG_PREM_RW, pde);
+    l1pt->entry[(mnt >> 22)] = NEW_L1_ENTRY(T_SELF_REF_PERM, pde);
+    cpu_invplg(mnt);

     return mnt;
 }
 
     return mnt;
 }
 


@@ -268,4 +269,5 @@ void*
 vmm_unmount_pd(uintptr_t mnt) {
     x86_page_table* l1pt = (x86_page_table*)L1_BASE_VADDR;
     l1pt->entry[(mnt >> 22)] = 0;
 vmm_unmount_pd(uintptr_t mnt) {
     x86_page_table* l1pt = (x86_page_table*)L1_BASE_VADDR;
     l1pt->entry[(mnt >> 22)] = 0;

+    cpu_invplg(mnt);

 }
\ No newline at end of file
 }
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