Changes in kernel/arch/amd64/src/userspace.c [811770c:2902e1bb] in mainline

File:

• kernel/arch/amd64/src/userspace.c (modified) (2 diffs)

kernel/arch/amd64/src/userspace.c

@@ -48 +48 @@
 void userspace(uspace_arg_t *kernel_uarg)
 {
-        uint64_t rflags = read_rflags();
+        ipl_t ipl = interrupts_disable();
         
-        rflags &= ~RFLAGS_NT;
-        rflags |= RFLAGS_IF;
+        ipl &= ~(RFLAGS_CF | RFLAGS_PF | RFLAGS_AF | RFLAGS_ZF | RFLAGS_SF |
+            RFLAGS_DF | RFLAGS_OF);
         
         asm volatile (
                 "pushq %[udata_des]\n"
                 "pushq %[stack_top]\n"
-                "pushq %[rflags]\n"
+                "pushq %[ipl]\n"
                 "pushq %[utext_des]\n"
                 "pushq %[entry]\n"
@@ -67 +67 @@
                    [stack_top] "r" ((uint8_t *) kernel_uarg->uspace_stack +
                        kernel_uarg->uspace_stack_size),
-                   [rflags] "r" (rflags),
+                   [ipl] "r" (ipl),
                    [utext_des] "i" (GDT_SELECTOR(UTEXT_DES) | PL_USER),
                    [entry] "r" (kernel_uarg->uspace_entry),