The SCTLR bits S and R (8 and 9) only exist in ARMv6 and earlier.
In ARMv7 these bits RAZ, and in ARMv8 they are reassigned. Guard
the use of them in check_ap() so that we don't get incorrect results
for ARMv8 CPUs.
Signed-off-by: Peter Maydell <peter.maydell@xxxxxxxxxx>
---
target-arm/helper.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 792953e..205e36a 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -2765,6 +2765,9 @@ static inline int check_ap(CPUARMState *env, int ap, int domain_prot,
switch (ap) {
case 0:
+ if (arm_feature(env, ARM_FEATURE_V7)) {
+ return 0;
+ }
if (access_type == 1)
return 0;
switch (env->cp15.c1_sys & (SCTLR_S | SCTLR_R)) {
--
1.8.5
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