From b7720a09952c8ecdf768603648c7e139876bf94b Mon Sep 17 00:00:00 2001
From: Giacomo Travaglini <giacomo.travaglini@arm.com>
Date: Wed, 20 Jul 2022 09:33:42 +0100
Subject: [PATCH] arch-arm: MISCREG_IMPDEF_UNIMPL does not need unimplemented
 flag

The decode tree is checking for MISCREG_IMPDEF_UNIMPL before the
MISCREG_UNIMPLEMENTED flag

Faulting is handled anyway by the new fault callbacks

Change-Id: I600ac02913c2fd947c3a6b7f1f81111f21bff3f6
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/61687
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
---
 src/arch/arm/regs/misc.cc | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/arch/arm/regs/misc.cc b/src/arch/arm/regs/misc.cc
index 6f6b179e2e..8cf64d136a 100644
--- a/src/arch/arm/regs/misc.cc
+++ b/src/arch/arm/regs/misc.cc
@@ -4933,7 +4933,6 @@ ISA::initializeMiscRegMetadata()
       .allPrivileges().exceptUserMode().writes(0);
     InitReg(MISCREG_UNKNOWN);
     InitReg(MISCREG_IMPDEF_UNIMPL)
-      .unimplemented()
       .fault(EL1, faultImpdefUnimplEL1)
       .fault(EL2, faultUnimplemented)
       .fault(EL3, faultUnimplemented)