ARM: Implement the Instruction Set Attribute Registers (ISAR).

The ISAR registers describe which features the processor supports.
Transcribe the values listed in section B5.2.5 of the ARM ARM
into the registers as read-only values

1 files changed, 10 insertions, 0 deletions

diff --git a/src/arch/arm/isa.cc b/src/arch/arm/isa.cc
index 4bdbe77ce..d720becba 100644
--- a/src/arch/arm/isa.cc
+++ b/src/arch/arm/isa.cc
@@ -143,6 +143,16 @@ ISA::clear()
 
     miscRegs[MISCREG_CPACR] = 0;
     miscRegs[MISCREG_FPSID] = 0x410430A0;
+
+    // See section B4.1.84 of ARM ARM
+    // All values are latest for ARMv7-A profile
+    miscRegs[MISCREG_ID_ISAR0] = 0x01101111;
+    miscRegs[MISCREG_ID_ISAR1] = 0x02112111;
+    miscRegs[MISCREG_ID_ISAR2] = 0x21232141;
+    miscRegs[MISCREG_ID_ISAR3] = 0x01112131;
+    miscRegs[MISCREG_ID_ISAR4] = 0x10010142;
+    miscRegs[MISCREG_ID_ISAR5] = 0x00000000;
+
     //XXX We need to initialize the rest of the state.
 }