From b371c50b2fd724bf9c005d75361952b67dbbd161 Mon Sep 17 00:00:00 2001
From: sigsegv7 <ian@vegaa.systems>
Date: Sat, 30 Sep 2023 09:23:20 -0400
Subject: kernel/amd64: machdep: Enable spectre mitigation

Signed-off-by: sigsegv7 <ian@vegaa.systems>
---
 sys/arch/amd64/machdep.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'sys/arch')

diff --git a/sys/arch/amd64/machdep.c b/sys/arch/amd64/machdep.c
index e6088a0..9fd7a12 100644
--- a/sys/arch/amd64/machdep.c
+++ b/sys/arch/amd64/machdep.c
@@ -34,6 +34,7 @@
 #include <machine/gdt.h>
 #include <machine/ioapic.h>
 #include <machine/lapic.h>
+#include <machine/spectre.h>
 
 #define ISR(func) ((uintptr_t)func)
 #define INIT_FLAG_IOAPIC 0x00000001U
@@ -75,4 +76,8 @@ processor_init(void)
     lapic_init();       /* Per core */
     gdt_load(&g_gdtr);
     interrupts_init();
+
+    /* Enable spectre mitigation if enabled */
+    if (try_spectre_mitigate != NULL)
+        try_spectre_mitigate();
 }
-- 
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