From e4244f7469acec30114aba0e6feb3ee6e9365bb7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=B6nke=20Holz?= <sholz8530@gmail.com>
Date: Thu, 4 Jan 2024 18:23:15 +0100
Subject: [PATCH] Kernel/riscv64: Implement support for "panic=shutdown"
 cmdline option

---
 Kernel/Library/Panic.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Kernel/Library/Panic.cpp b/Kernel/Library/Panic.cpp
index b77de7883e..3f3dec925c 100644
--- a/Kernel/Library/Panic.cpp
+++ b/Kernel/Library/Panic.cpp
@@ -10,6 +10,8 @@
 #    include <Kernel/Arch/x86_64/Shutdown.h>
 #elif ARCH(AARCH64)
 #    include <Kernel/Arch/aarch64/RPi/Watchdog.h>
+#elif ARCH(RISCV64)
+#    include <Kernel/Arch/riscv64/SBI.h>
 #endif
 #include <Kernel/Boot/CommandLine.h>
 #include <Kernel/KSyms.h>
@@ -25,6 +27,11 @@ namespace Kernel {
     virtualbox_shutdown();
 #elif ARCH(AARCH64)
     RPi::Watchdog::the().system_shutdown();
+#elif ARCH(RISCV64)
+    auto ret = SBI::SystemReset::system_reset(SBI::SystemReset::ResetType::Shutdown, SBI::SystemReset::ResetReason::SystemFailure);
+    dbgln("SBI: Failed to shut down: {}", ret);
+    dbgln("SBI: Attempting to shut down using the legacy extension...");
+    SBI::Legacy::shutdown();
 #endif
     // Note: If we failed to invoke platform shutdown, we need to halt afterwards
     // to ensure no further execution on any CPU still happens.