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diff --git a/StdLib/Include/Aarch64/machine/param.h b/StdLib/Include/Aarch64/machine/param.h
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+++ b/StdLib/Include/Aarch64/machine/param.h
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+/*      $NetBSD: param.h,v 1.13 2010/05/06 19:10:26 joerg Exp $ */
+
+/*
+ * Copyright (c) 1994,1995 Mark Brinicombe.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the RiscBSD team.
+ * 4. The name "RiscBSD" nor the name of the author may be used to
+ *    endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RISCBSD ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL RISCBSD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _AARCH64_PARAM_H_
+#define _AARCH64_PARAM_H_
+
+// TODO: These were based on the ARMv7 version. Verify that it is correct.
+
+/*
+ * Machine dependent constants for all ARM processors
+ */
+
+/*
+ * For KERNEL code:
+ *      MACHINE must be defined by the individual port.  This is so that
+ *      uname returns the correct thing, etc.
+ *
+ *      MACHINE_ARCH may be defined by individual ports as a temporary
+ *      measure while we're finishing the conversion to ELF.
+ *
+ * For non-KERNEL code:
+ *      If ELF, MACHINE and MACHINE_ARCH are forced to "arm/armeb".
+ */
+
+#if defined(_KERNEL)
+#undef _MACHINE
+#undef MACHINE
+#undef _MACHINE_ARCH
+#undef MACHINE_ARCH
+#define _MACHINE        aarch64
+#define MACHINE         "aarch64"
+#define _MACHINE_ARCH   aarch64
+#define MACHINE_ARCH    "aarch64"
+#endif /* !_KERNEL */
+
+#define MID_MACHINE     MID_AARCH64
+
+/*
+ * Round p (pointer or byte index) up to a correctly-aligned value
+ * for all data types (int, long, ...).   The result is u_int and
+ * must be cast to any desired pointer type.
+ *
+ * ALIGNED_POINTER is a boolean macro that checks whether an address
+ * is valid to fetch data elements of type t from on this architecture.
+ * This does not reflect the optimal alignment, just the possibility
+ * (within reasonable limits).
+ *
+ */
+#define ALIGNBYTES              (sizeof(int) - 1)
+#define ALIGN(p)                (((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES)
+#define ALIGNED_POINTER(p,t)    ((((u_long)(p)) & (sizeof(t)-1)) == 0)
+/* ARM-specific macro to align a stack pointer (downwards). */
+#define STACKALIGNBYTES         (8 - 1)
+#define STACKALIGN(p)           ((u_int)(p) &~ STACKALIGNBYTES)
+
+#define DEV_BSHIFT      9               /* log2(DEV_BSIZE) */
+#define DEV_BSIZE       (1 << DEV_BSHIFT)
+#define BLKDEV_IOSIZE   2048
+
+#ifndef MAXPHYS
+#define MAXPHYS         65536           /* max I/O transfer size */
+#endif
+
+/*
+ * Constants related to network buffer management.
+ * MCLBYTES must be no larger than NBPG (the software page size), and,
+ * on machines that exchange pages of input or output buffers with mbuf
+ * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
+ * of the hardware page size.
+ */
+#define MSIZE           256             /* size of an mbuf */
+
+#ifndef MCLSHIFT
+#define MCLSHIFT        11              /* convert bytes to m_buf clusters */
+                                        /* 2K cluster can hold Ether frame */
+#endif  /* MCLSHIFT */
+
+#define MCLBYTES        (1 << MCLSHIFT) /* size of a m_buf cluster */
+
+#ifndef NMBCLUSTERS_MAX
+#define NMBCLUSTERS_MAX (0x2000000 / MCLBYTES)  /* Limit to 64MB for clusters */
+#endif
+
+/*
+ * Compatibility /dev/zero mapping.
+ */
+#ifdef _KERNEL
+#ifdef COMPAT_16
+#define COMPAT_ZERODEV(x)       (x == makedev(0, _DEV_ZERO_oARM))
+#endif
+#endif /* _KERNEL */
+
+#endif /* _AARCH64_PARAM_H_ */