feat: No more kernel page table switching upon interrupt.

[lunaix-os.git] / lunaix-os / includes / hal / cpu.h

diff --git a/lunaix-os/includes/hal/cpu.h b/lunaix-os/includes/hal/cpu.h
index bdb07c467267c56aa911bf3f37795b10b0747fc1..b155d4b57496e67a93b99e6ddd7a58432b599789 100644 (file)
--- a/lunaix-os/includes/hal/cpu.h
+++ b/lunaix-os/includes/hal/cpu.h
@@ -39,19 +39,36 @@ cpu_has_apic();
 static inline reg32
 cpu_rcr0()
 {
 static inline reg32
 cpu_rcr0()
 {

-    asm("mov %cr0, %eax");
+    uintptr_t val;
+    asm volatile("movl %%cr0,%0" : "=r" (val));
+    return val;

 }
 
 static inline reg32
 cpu_rcr2()
 {
 }
 
 static inline reg32
 cpu_rcr2()
 {

-    asm("mov %cr2, %eax");
+    uintptr_t val;
+    asm volatile("movl %%cr2,%0" : "=r" (val));
+    return val;

 }
 
 static inline reg32
 cpu_rcr3()
 {
 }
 
 static inline reg32
 cpu_rcr3()
 {

-    asm("mov %cr3, %eax");
+    uintptr_t val;
+    asm volatile("movl %%cr3,%0" : "=r" (val));
+    return val;
+}
+
+static inline reg32
+cpu_reflags()
+{
+    uintptr_t val;
+    asm volatile(
+        "pushf\n"
+        "popl %0\n"
+        :"=r"(val)::);
+    return val;

 }
 #pragma GCC diagnostic pop
 
 }
 #pragma GCC diagnostic pop