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, 24 insertions, 4 deletions

diff --git a/src/arch/arm/ArmSystem.py b/src/arch/arm/ArmSystem.py
index b48c2a29d..39b7ec8ff 100644
--- a/src/arch/arm/ArmSystem.py
+++ b/src/arch/arm/ArmSystem.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2009 ARM Limited
+# Copyright (c) 2009, 2012-2013 ARM Limited
 # All rights reserved.
 #
 # The license below extends only to copyright in the software and shall
@@ -44,7 +44,8 @@ class ArmMachineType(Enum):
            'RealView_PBX' : 1901,
            'VExpress_ELT' : 2272,
            'VExpress_CA9' : 2272,
-           'VExpress_EMM' : 2272}
+           'VExpress_EMM' : 2272,
+           'VExpress_EMM64' : 2272}
 
 class ArmSystem(System):
     type = 'ArmSystem'
@@ -54,6 +55,23 @@ class ArmSystem(System):
     boot_loader = Param.String("", "File that contains the boot loader code if any")
     gic_cpu_addr = Param.Addr(0, "Addres of the GIC CPU interface")
     flags_addr = Param.Addr(0, "Address of the flags register for MP booting")
+    have_security = Param.Bool(False,
+        "True if Security Extensions are implemented")
+    have_virtualization = Param.Bool(False,
+        "True if Virtualization Extensions are implemented")
+    have_lpae = Param.Bool(False, "True if LPAE is implemented")
+    have_generic_timer = Param.Bool(False,
+        "True if the Generic Timer extension is implemented")
+    highest_el_is_64 = Param.Bool(False,
+        "True if the register width of the highest implemented exception level "
+        "is 64 bits (ARMv8)")
+    reset_addr_64 = Param.UInt64(0x0,
+        "Reset address if the highest implemented exception level is 64 bits "
+        "(ARMv8)")
+    phys_addr_range_64 = Param.UInt8(40,
+        "Supported physical address range in bits when using AArch64 (ARMv8)")
+    have_large_asid_64 = Param.Bool(False,
+        "True if ASID is 16 bits in AArch64 (ARMv8)")
 
 class LinuxArmSystem(ArmSystem):
     type = 'LinuxArmSystem'
@@ -61,8 +79,10 @@ class LinuxArmSystem(ArmSystem):
     load_addr_mask = 0x0fffffff
     machine_type = Param.ArmMachineType('RealView_PBX',
         "Machine id from http://www.arm.linux.org.uk/developer/machines/")
-    atags_addr = Param.Addr(0x100,
-        "Address where default atags structure should be written")
+    atags_addr = Param.Addr("Address where default atags structure should " \
+                                "be written")
+    boot_release_addr = Param.Addr(0xfff8, "Address where secondary CPUs " \
+                                       "spin waiting boot in the loader")
     dtb_filename = Param.String("",
         "File that contains the Device Tree Blob. Don't use DTB if empty.")
     early_kernel_symbols = Param.Bool(False,