From 2bb35dc6136ab2c890eb2c27f130839248fb708a Mon Sep 17 00:00:00 2001
From: Rairii <2650838+Wack0@users.noreply.github.com>
Date: Fri, 23 Aug 2024 01:31:35 -0700
Subject: [PATCH] pcihost: Add machine check exception.

A machine check exception happens when attempting to read from an unmapped I/O address.
---
 devices/common/pci/pcihost.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/devices/common/pci/pcihost.cpp b/devices/common/pci/pcihost.cpp
index 6df4b8f..2a47520 100644
--- a/devices/common/pci/pcihost.cpp
+++ b/devices/common/pci/pcihost.cpp
@@ -30,6 +30,7 @@ along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #include <loguru.hpp>
 
 #include <cinttypes>
+#include <cpu/ppc/ppcemu.h>
 
 bool PCIHost::pci_register_device(int dev_fun_num, PCIBase* dev_instance)
 {
@@ -227,7 +228,8 @@ uint32_t PCIHost::pci_io_read_broadcast(uint32_t offset, int size)
         hwc ? hwc->get_name().c_str() : "PCIHost", offset,
         SIZE_ARG(size)
     );
-    // FIXME: add machine check exception (DEFAULT CATCH!, code=FFF00200)
+    // machine check exception (DEFAULT CATCH!, code=FFF00200)
+    ppc_exception_handler(Except_Type::EXC_MACHINE_CHECK, 0);
     return 0;
 }