Changeset 392 for trunk

Timestamp:

Aug 16, 2017, 3:35:40 PM (7 years ago)

Author:

max@…

Message:

Start handling page faults. Not tested.

File:

• trunk/hal/x86_64/core/hal_exception.c (modified) (1 diff)

trunk/hal/x86_64/core/hal_exception.c

@@ -85 +85 @@
 static void hal_exception_user(hal_trapframe_t *tf)
 {
+        thread_t *thread = curtls()->tls_thr;
+        process_t *process = thread->process;
+        vseg_t *vseg;
+        intptr_t bad_vaddr;
+        error_t error;
+
         switch (tf->tf_trapno) {
                 case T_PAGEFLT:
-                        // TODO
-                        //do_exception(curtls()->tls_thr, true);
+                        bad_vaddr = rcr2();
+
+                        error = vmm_get_vseg(process, bad_vaddr, &vseg);
+                        if (error) {
+                                x86_panic("vseg not found!");
+                        }
+
+                        error = vmm_handle_page_fault(process, vseg,
+                            bad_vaddr >> CONFIG_PPM_PAGE_SHIFT);
+
+                        x86_printf("VA=%Z ERROR=%Z\n", bad_vaddr, (uint64_t)error);
+                        break;
 
                 default: