From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Brian Gianforcaro <b.gianfo@gmail.com>
Date: Tue, 21 Dec 2021 23:48:46 -0800
Subject: [PATCH] Disable rdtsc support for minerva

This patch disables the function which uses `rdtsc` to get the current
clock time, as that instruction isn't allowed to be called from user
space by minerva.

If you did attempt to call it you would trip a segfault.
---
 arch/arch-x86.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arch-x86.h b/arch/arch-x86.h
index c6bcb54..c1005b1 100644
--- a/arch/arch-x86.h
+++ b/arch/arch-x86.h
@@ -35,6 +35,7 @@ static inline unsigned long long get_cpu_clock(void)
 }
 
 #define ARCH_HAVE_FFZ
-#define ARCH_HAVE_CPU_CLOCK
+// Minerva OS doesn't allow you to read rdtsc.
+// #define ARCH_HAVE_CPU_CLOCK
 
 #endif