1 files changed, 99 insertions, 0 deletions
diff --git a/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-memory.h b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-memory.h
new file mode 100644
index 00000000..f0f315d7
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+++ b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-memory.h
@@ -0,0 +1,99 @@
+/* $Id: bs3-cmn-memory.h $ */
+/** @file
+ * BS3Kit - Internal Memory Structures, Variables and Functions.
+ */
+
+/*
+ * Copyright (C) 2007-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE 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.
+ */
+
+#ifndef BS3KIT_INCLUDED_bs3_cmn_memory_h
+#define BS3KIT_INCLUDED_bs3_cmn_memory_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include "bs3kit.h"
+#include <iprt/asm.h>
+
+RT_C_DECLS_BEGIN;
+
+
+typedef union BS3SLABCTLLOW
+{
+    BS3SLABCTL  Core;
+    uint32_t    au32Alloc[(sizeof(BS3SLABCTL) + (0xA0000 / _4K / 8) ) / 4];
+} BS3SLABCTLLOW;
+#ifndef DOXYGEN_RUNNING
+# define g_Bs3Mem4KLow          BS3_DATA_NM(g_Bs3Mem4KLow)
+#endif
+extern BS3SLABCTLLOW            g_Bs3Mem4KLow;
+
+
+typedef union BS3SLABCTLUPPERTILED
+{
+    BS3SLABCTL  Core;
+    uint32_t    au32Alloc[(sizeof(BS3SLABCTL) + ((BS3_SEL_TILED_AREA_SIZE - _1M) / _4K / 8) ) / 4];
+} BS3SLABCTLUPPERTILED;
+#ifndef DOXYGEN_RUNNING
+# define g_Bs3Mem4KUpperTiled   BS3_DATA_NM(g_Bs3Mem4KUpperTiled)
+#endif
+extern BS3SLABCTLUPPERTILED     g_Bs3Mem4KUpperTiled;
+
+
+/** The number of chunk sizes used by the slab list arrays
+ * (g_aBs3LowSlabLists, g_aBs3UpperTiledSlabLists, more?). */
+#define BS3_MEM_SLAB_LIST_COUNT 6
+
+#ifndef DOXYGEN_RUNNING
+# define g_aiBs3SlabListsByPowerOfTwo   BS3_DATA_NM(g_aiBs3SlabListsByPowerOfTwo)
+# define g_acbBs3SlabLists              BS3_DATA_NM(g_acbBs3SlabLists)
+# define g_aBs3LowSlabLists             BS3_DATA_NM(g_aBs3LowSlabLists)
+# define g_aBs3UpperTiledSlabLists      BS3_DATA_NM(g_aBs3UpperTiledSlabLists)
+# define g_cbBs3SlabCtlSizesforLists    BS3_DATA_NM(g_cbBs3SlabCtlSizesforLists)
+#endif
+extern uint8_t const            g_aiBs3SlabListsByPowerOfTwo[12];
+extern uint16_t const           g_acbBs3SlabLists[BS3_MEM_SLAB_LIST_COUNT];
+extern BS3SLABHEAD              g_aBs3LowSlabLists[BS3_MEM_SLAB_LIST_COUNT];
+extern BS3SLABHEAD              g_aBs3UpperTiledSlabLists[BS3_MEM_SLAB_LIST_COUNT];
+extern uint16_t const           g_cbBs3SlabCtlSizesforLists[BS3_MEM_SLAB_LIST_COUNT];
+
+
+/**
+ * Translates a allocation request size to a slab list index.
+ *
+ * @returns Slab list index if small request, UINT8_MAX if large.
+ * @param   cbRequest   The number of bytes requested.
+ */
+DECLINLINE(uint8_t) bs3MemSizeToSlabListIndex(size_t cbRequest)
+{
+    if (cbRequest <= g_acbBs3SlabLists[BS3_MEM_SLAB_LIST_COUNT - 1])
+    {
+        unsigned idx = cbRequest ? ASMBitLastSetU16((uint16_t)(cbRequest - 1)) : 0;
+        return g_aiBs3SlabListsByPowerOfTwo[idx];
+    }
+    return UINT8_MAX;
+}
+
+
+RT_C_DECLS_END;
+
+#endif /* !BS3KIT_INCLUDED_bs3_cmn_memory_h */
+