1 files changed, 100 insertions, 0 deletions
diff --git a/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-rm-InitAll.c b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-rm-InitAll.c
new file mode 100644
index 00000000..3d22fb5c
--- /dev/null
+++ b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-rm-InitAll.c
@@ -0,0 +1,100 @@
+/* $Id: bs3-rm-InitAll.c $ */
+/** @file
+ * BS3Kit - Initialize all components, real mode.
+ */
+
+/*
+ * Copyright (C) 2007-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program 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, in version 3 of the
+ * License.
+ *
+ * This program 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 this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+//#define BS3_USE_RM_TEXT_SEG 1
+#include "bs3kit-template-header.h"
+#include "bs3-cmn-test.h"
+#include <iprt/asm-amd64-x86.h>
+
+BS3_MODE_PROTO_NOSB(void, Bs3EnteredMode,(void));
+
+
+BS3_DECL(void) Bs3InitAll_rm(void)
+{
+    uint8_t volatile BS3_FAR  *pcTicksFlpyOff;
+
+    /*
+     * Detect CPU first as the memory init code will otherwise use 386
+     * instrunctions and cause trouble on older CPUs.
+     */
+    Bs3CpuDetect_rm_far();
+    Bs3InitMemory_rm_far();
+    Bs3InitGdt_rm_far();
+
+    /*
+     * Before we disable all interrupts, try convince the BIOS to stop the
+     * floppy motor, as it is kind of disturbing when the floppy light remains
+     * on for the whole testcase execution.
+     */
+    ASMIntDisable(); /* (probably already disabled, but no guarantees) */
+    pcTicksFlpyOff = (uint8_t volatile BS3_FAR *)BS3_FP_MAKE(0x40, 0x40);
+    if (*pcTicksFlpyOff)
+    {
+        uint32_t volatile BS3_FAR *pcTicks = (uint32_t volatile BS3_FAR *)BS3_FP_MAKE(0x40, 0x6c);
+        uint32_t cInitialTicks;
+
+        *pcTicksFlpyOff = 1;            /* speed up the countdown, don't want to wait for two seconds here. */
+        cInitialTicks   = *pcTicks;
+        ASMIntEnable();
+
+        while (*pcTicks == cInitialTicks)
+            ASMHalt();
+    }
+    ASMIntDisable();
+    Bs3PicSetup(false /*fForcedReInit*/);
+
+    /*
+     * Initialize IDTs and such.
+     */
+    if (g_uBs3CpuDetected & BS3CPU_F_LONG_MODE)
+        Bs3Trap64Init();
+    if ((g_uBs3CpuDetected & BS3CPU_TYPE_MASK) >= BS3CPU_80386)
+        Bs3Trap32Init();
+    if ((g_uBs3CpuDetected & BS3CPU_TYPE_MASK) >= BS3CPU_80286)
+        Bs3Trap16Init();
+    Bs3TrapRmV86Init();
+
+    /*
+     * Perform a real-mode enter to make some final environment adjustments
+     * (like installing our syscall).
+     */
+    Bs3EnteredMode_rm();
+}
+