From 9e3d9b18eafd5202bae3f722b05a02b5b1eb2800 Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Fri, 18 Mar 2022 16:40:46 -0400
Subject: [PATCH] Add write_cr3()

---
 src/common/hos/cpu.d | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/common/hos/cpu.d b/src/common/hos/cpu.d
index 536330b..7046603 100644
--- a/src/common/hos/cpu.d
+++ b/src/common/hos/cpu.d
@@ -15,6 +15,11 @@ ulong read_cr3()
     return __asm!ulong("mov %cr3, %rax", "={rax}");
 }
 
+void write_cr3(ulong v)
+{
+    __asm("mov $0, %cr3", "r", v);
+}
+
 ulong read_cr4()
 {
     return __asm!ulong("mov %cr4, %rax", "={rax}");