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, 5 insertions, 3 deletions

diff --git a/src/arch/arm/isa/insts/ldr.isa b/src/arch/arm/isa/insts/ldr.isa
index f599fa4b9..6bfe40118 100644
--- a/src/arch/arm/isa/insts/ldr.isa
+++ b/src/arch/arm/isa/insts/ldr.isa
@@ -1,6 +1,6 @@
 // -*- mode:c++ -*-
 
-// Copyright (c) 2010 ARM Limited
+// Copyright (c) 2010-2011 ARM Limited
 // All rights reserved
 //
 // The license below extends only to copyright in the software and shall
@@ -38,6 +38,7 @@
 // Authors: Gabe Black
 
 let {{
+    import math
 
     header_output = ""
     decoder_output = ""
@@ -78,7 +79,8 @@ let {{
              newDecoder,
              newExec) = self.fillTemplates(self.name, self.Name, codeBlobs,
                                            self.memFlags, instFlags, base,
-                                           wbDecl, pcDecl, self.rasPop)
+                                           wbDecl, pcDecl, self.rasPop,
+                                           self.size, self.sign)
 
             header_output += newHeader
             decoder_output += newDecoder
@@ -160,7 +162,7 @@ let {{
                                       self.size, self.sign, self.user)
 
             # Add memory request flags where necessary
-            self.memFlags.append("%d" % (self.size - 1))
+            self.memFlags.append("%d" % int(math.log(self.size, 2)))
             if self.user:
                 self.memFlags.append("ArmISA::TLB::UserMode")