On 04/25/2017 09:07 AM, Peter Maydell wrote:
All M profile CPUs are PMSA, so set the feature bit.
(We haven't actually implemented the M profile MPU register
interface yet, but setting this feature bit gives us closer
to correct behaviour for the MPU-disabled case.)
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4...@amsat.org>
---
target/arm/cpu.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 8e57498..df8b835 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -543,6 +543,14 @@ static void arm_cpu_post_init(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ /* M profile implies PMSA. We have to do this here rather than
+ * in realize with the other feature-implication checks because
+ * we look at the PMSA bit to see if we should add some properties.
+ */
+ if (arm_feature(&cpu->env, ARM_FEATURE_M)) {
+ set_feature(&cpu->env, ARM_FEATURE_PMSA);
+ }
+
if (arm_feature(&cpu->env, ARM_FEATURE_CBAR) ||
arm_feature(&cpu->env, ARM_FEATURE_CBAR_RO)) {
qdev_property_add_static(DEVICE(obj), &arm_cpu_reset_cbar_property,
