diff --git a/libc/kernel/common/linux/highmem.h b/libc/kernel/common/linux/highmem.h
new file mode 100644
index 0000000..d4a34ca
--- /dev/null
+++ b/libc/kernel/common/linux/highmem.h
@@ -0,0 +1,31 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _LINUX_HIGHMEM_H
+#define _LINUX_HIGHMEM_H
+
+#include <linux/fs.h>
+#include <linux/mm.h>
+
+#include <asm/cacheflush.h>
+
+#ifndef ARCH_HAS_FLUSH_ANON_PAGE
+#endif
+#ifndef ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
+#endif
+#define kunmap(page) do { (void) (page); } while (0)
+#define kmap_atomic(page, idx) page_address(page)
+#define kunmap_atomic(addr, idx) do { } while (0)
+#define kmap_atomic_pfn(pfn, idx) page_address(pfn_to_page(pfn))
+#define kmap_atomic_to_page(ptr) virt_to_page(ptr)
+#ifndef __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
+#endif
+#endif