From b3d7851f01be04f69c1f14c19905786c1d44a9a1 Mon Sep 17 00:00:00 2001
From: tkchia <tkchia-cosmo@gmx.com>
Date: Thu, 20 Oct 2022 16:26:46 +0000
Subject: [PATCH] [metal] Call invlpg(.) when altering any VA page table
 entries

---
 libc/calls/munmap-metal.c     | 2 +-
 libc/intrin/directmap-metal.c | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/libc/calls/munmap-metal.c b/libc/calls/munmap-metal.c
index 1b7f9e991..2497e2568 100644
--- a/libc/calls/munmap-metal.c
+++ b/libc/calls/munmap-metal.c
@@ -27,7 +27,7 @@ noasan int sys_munmap_metal(void *addr, size_t size) {
   for (i = 0; i < size; i += 4096) {
     e = __get_virtual(mm, __get_pml4t(), (uint64_t)addr + i, false);
     if (e) *e = ~(PAGE_V | PAGE_RSRV);
-    invlpg(e);
+    invlpg((uint64_t)addr + i);
   }
   return 0;
 }
diff --git a/libc/intrin/directmap-metal.c b/libc/intrin/directmap-metal.c
index e4e52b5ac..bd3a4afd8 100644
--- a/libc/intrin/directmap-metal.c
+++ b/libc/intrin/directmap-metal.c
@@ -62,6 +62,7 @@ noasan struct DirectMap sys_mmap_metal(void *paddr, size_t size, int prot,
         page |= PAGE_V;
       if (!(prot & PROT_EXEC)) page |= PAGE_XD;
       *pte = page;
+      invlpg(addr + i);
     } else {
       addr = -1;
       break;