aa64: finalise context switch, page fault handler and syscall

[lunaix-os.git] / lunaix-os / arch / aarch64 / vmutils.c

diff --git a/lunaix-os/arch/aarch64/vmutils.c b/lunaix-os/arch/aarch64/vmutils.c
new file mode 100644 (file)
index 0000000..aef8c4c
--- /dev/null
+++ b/lunaix-os/arch/aarch64/vmutils.c
@@ -0,0 +1,33 @@
+#include <lunaix/mm/pagetable.h>
+#include <lunaix/mm/page.h>
+
+struct leaflet*
+dup_leaflet(struct leaflet* leaflet)
+{
+    ptr_t dest_va, src_va;
+    struct leaflet* new_leaflet;
+    
+    new_leaflet = alloc_leaflet(leaflet_order(leaflet));
+
+    src_va = leaflet_mount(leaflet);
+    dest_va = vmap(new_leaflet, KERNEL_DATA);
+
+    memcpy((void*)dest_va, (void*)src_va, PAGE_SIZE);
+
+    leaflet_unmount(leaflet);
+    vunmap(dest_va, new_leaflet);
+
+    return new_leaflet;
+}
+
+ptr_t
+pmm_arch_init_remap(struct pmem* memory, struct boot_handoff* bctx)
+{
+    unsigned long plist_len;
+
+    plist_len = leaf_count(bctx->mem.size) * sizeof(struct ppage);
+
+    for (int i = 0; i < bctx->mem.mmap_len; i++) {
+        
+    }
+}