arm: Add support for ARMv8 (AArch64 & AArch32)

Note: AArch64 and AArch32 interworking is not supported. If you use an AArch64
kernel you are restricted to AArch64 user-mode binaries. This will be addressed
in a later patch.

Note: Virtualization is only supported in AArch32 mode. This will also be fixed
in a later patch.

Contributors:
Giacomo Gabrielli    (TrustZone, LPAE, system-level AArch64, AArch64 NEON, validation)
Thomas Grocutt       (AArch32 Virtualization, AArch64 FP, validation)
Mbou Eyole           (AArch64 NEON, validation)
Ali Saidi            (AArch64 Linux support, code integration, validation)
Edmund Grimley-Evans (AArch64 FP)
William Wang         (AArch64 Linux support)
Rene De Jong         (AArch64 Linux support, performance opt.)
Matt Horsnell        (AArch64 MP, validation)
Matt Evans           (device models, code integration, validation)
Chris Adeniyi-Jones  (AArch64 syscall-emulation)
Prakash Ramrakhyani  (validation)
Dam Sunwoo           (validation)
Chander Sudanthi     (validation)
Stephan Diestelhorst (validation)
Andreas Hansson      (code integration, performance opt.)
Eric Van Hensbergen  (performance opt.)
Gabe Black

1 files changed, 58 insertions, 0 deletions

diff --git a/src/arch/arm/isa/insts/aarch64.isa b/src/arch/arm/isa/insts/aarch64.isa
new file mode 100644
index 000000000..6fcf9b5d2
--- /dev/null
+++ b/src/arch/arm/isa/insts/aarch64.isa
@@ -0,0 +1,58 @@
+// -*- mode:c++ -*-
+
+// Copyright (c) 2011 ARM Limited
+// All rights reserved
+//
+// The license below extends only to copyright in the software and shall
+// not be construed as granting a license to any other intellectual
+// property including but not limited to intellectual property relating
+// to a hardware implementation of the functionality of the software
+// licensed hereunder.  You may use the software subject to the license
+// terms below provided that you ensure that this notice is replicated
+// unmodified and in its entirety in all distributions of the software,
+// modified or unmodified, in source code or in binary form.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met: redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer;
+// 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;
+// neither the name of the copyright holders nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "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 THE COPYRIGHT
+// OWNER 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.
+//
+// Authors: Gabe Black
+
+let {{
+    movzCode = 'Dest64 = ((uint64_t)imm1) << imm2;'
+    movzIop = InstObjParams("movz", "Movz", "RegImmImmOp", movzCode, [])
+    header_output += RegImmImmOpDeclare.subst(movzIop)
+    decoder_output += RegImmImmOpConstructor.subst(movzIop)
+    exec_output += BasicExecute.subst(movzIop)
+
+    movkCode = 'Dest64 = insertBits(Dest64, imm2 + 15, imm2, imm1);'
+    movkIop = InstObjParams("movk", "Movk", "RegImmImmOp", movkCode, [])
+    header_output += RegImmImmOpDeclare.subst(movkIop)
+    decoder_output += RegImmImmOpConstructor.subst(movkIop)
+    exec_output += BasicExecute.subst(movkIop)
+
+    movnCode = 'Dest64 = ~(((uint64_t)imm1) << imm2);'
+    movnIop = InstObjParams("movn", "Movn", "RegImmImmOp", movnCode, [])
+    header_output += RegImmImmOpDeclare.subst(movnIop)
+    decoder_output += RegImmImmOpConstructor.subst(movnIop)
+    exec_output += BasicExecute.subst(movnIop)
+}};