From 03c11496a74f6d92a58fefbaa87fbcb2887d401b Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Mon, 15 Sep 2025 07:45:15 -0400
Subject: kern/amd64: boot: Disable the i8259 chip on boot

To avoid interrupt conflicts on some machines with the I/O APIC, disable
the legacy i8259 chip by default

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 src/sys/arch/amd64/boot/boot_chip.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/sys/arch/amd64/boot')

diff --git a/src/sys/arch/amd64/boot/boot_chip.c b/src/sys/arch/amd64/boot/boot_chip.c
index 80daf27..737309f 100644
--- a/src/sys/arch/amd64/boot/boot_chip.c
+++ b/src/sys/arch/amd64/boot/boot_chip.c
@@ -31,10 +31,12 @@
 #include <machine/uart.h>
 #include <machine/gdt.h>
 #include <machine/boot.h>
+#include <machine/i8259.h>
 
 void
 platform_boot(void)
 {
     gdt_load();
+    i8259_disable();
     uart_init();
 }
-- 
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