diff --git a/kernel/cpu/cpu_amd64.go b/kernel/cpu/cpu_amd64.go
index 7776082..c757266 100644
--- a/kernel/cpu/cpu_amd64.go
+++ b/kernel/cpu/cpu_amd64.go
@@ -18,3 +18,6 @@ func SwitchPDT(pdtPhysAddr uintptr)
 
 // ActivePDT returns the physical address of the currently active page table.
 func ActivePDT() uintptr
+
+// ReadCR2 returns the value stored in the CR2 register.
+func ReadCR2() uint64
diff --git a/kernel/cpu/cpu_amd64.s b/kernel/cpu/cpu_amd64.s
index 5ef45db..b654195 100644
--- a/kernel/cpu/cpu_amd64.s
+++ b/kernel/cpu/cpu_amd64.s
@@ -27,3 +27,7 @@ TEXT ·ActivePDT(SB),NOSPLIT,$0
 	MOVQ AX, ret+0(FP)
 	RET
 
+TEXT ·ReadCR2(SB),NOSPLIT,$0
+	MOVQ CR2, AX
+	MOVQ AX, ret+0(FP)
+	RET