From b34db5a8acd0639fde9a81b38e96776f7c2ef61e Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Tue, 2 Jun 2026 11:38:48 +0200
Subject: kernel/vfs: add type descriptor for rootfs

---
 kernel/src/filesystem/rootfs/filesystem.cpp | 25 ++++++++++++++++++++++++-
 kernel/src/main.cpp                         |  2 ++
 2 files changed, 26 insertions(+), 1 deletion(-)

(limited to 'kernel/src')

diff --git a/kernel/src/filesystem/rootfs/filesystem.cpp b/kernel/src/filesystem/rootfs/filesystem.cpp
index 0ba2936..7fe5c1e 100644
--- a/kernel/src/filesystem/rootfs/filesystem.cpp
+++ b/kernel/src/filesystem/rootfs/filesystem.cpp
@@ -1,8 +1,9 @@
 #include <kernel/filesystem/rootfs/filesystem.hpp>
 
-#include "kernel/filesystem/filesystem.hpp"
+#include <kernel/filesystem/filesystem.hpp>
 #include <kernel/filesystem/inode.hpp>
 #include <kernel/filesystem/rootfs/inode.hpp>
+#include <kernel/filesystem/type.hpp>
 
 #include <kstd/memory>
 
@@ -10,6 +11,28 @@
 
 namespace kernel::filesystem::rootfs
 {
+
+  struct type final : kernel::filesystem::type
+  {
+    [[nodiscard]] auto name() const noexcept -> std::string_view override
+    {
+      return "rootfs";
+    }
+
+    [[nodiscard]] auto requires_device() const noexcept -> bool override
+    {
+      return true;
+    }
+
+    [[nodiscard]] auto make_instance() const -> kstd::shared_ptr<kernel::filesystem::filesystem> override
+    {
+      return kstd::make_shared<filesystem>();
+    }
+  };
+
+  [[gnu::used]]
+  constexpr auto registration = type_registration<type>{};
+
   auto filesystem::mount(kstd::shared_ptr<kernel::filesystem::inode> const &) -> operation_result
   {
     m_root_inode = kstd::make_shared<inode>();
diff --git a/kernel/src/main.cpp b/kernel/src/main.cpp
index 5063d18..8dc1349 100644
--- a/kernel/src/main.cpp
+++ b/kernel/src/main.cpp
@@ -140,6 +140,8 @@ auto main() -> int
   kstd::println("[OS] Global open file table initialized.");
 
   kernel::filesystem::type_registry::init();
+  kstd::println("[OS] Builtin filesystems registered.");
+
   kernel::filesystem::vfs::init();
   kstd::println("[OS] Virtual filesystem initialized.");
 
-- 
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