Merge remote-tracking branch 'Kernel/master'

Kernel/kernel_vfs.cpp

@@ -0,0 +1,59 @@
+/*
+	This file is part of Fennix Kernel.
+
+	Fennix Kernel is free software: you can redistribute it and/or
+	modify it under the terms of the GNU General Public License as
+	published by the Free Software Foundation, either version 3 of
+	the License, or (at your option) any later version.
+
+	Fennix Kernel is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "kernel.h"
+
+#include <filesystem/ustar.hpp>
+#include <memory.hpp>
+
+vfs::Virtual *fs = nullptr;
+
+void SearchForInitrd()
+{
+	for (size_t i = 0; i < MAX_MODULES; i++)
+	{
+		uintptr_t initrdAddress = (uintptr_t)bInfo.Modules[i].Address;
+
+		if (!initrdAddress)
+			continue;
+
+		if (strcmp(bInfo.Modules[i].CommandLine, "initrd") != 0)
+			continue;
+
+		KPrint("initrd found at %#lx", initrdAddress);
+
+		Memory::Virtual vmm;
+		if (!vmm.Check((void *)initrdAddress))
+		{
+			warn("Initrd is not mapped!");
+			vmm.Map((void *)initrdAddress, (void *)initrdAddress,
+					bInfo.Modules[i].Size, Memory::RW);
+		}
+
+		if (TestAndInitializeUSTAR(initrdAddress, bInfo.Modules[i].Size))
+			continue; /* Maybe add another root? */
+	}
+}
+
+EXTERNC NIF void KernelVFS()
+{
+	KPrint("Initializing Virtual File System");
+
+	fs = new vfs::Virtual;
+	SearchForInitrd();
+	fs->Initialize();
+}