[PATCH 75/82] target/arm: Enable GCSPR_EL0 for read in user-mode

[Richard Henderson]

Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
 target/arm/cpu.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index ec63297165..284d1870ec 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -317,6 +317,10 @@ static void arm_cpu_reset_hold(Object *obj, ResetType type)
         env->cp15.mdscr_el1 |= 1 << 12;
         /* Enable FEAT_MOPS */
         env->cp15.sctlr_el[1] |= SCTLR_MSCEN;
+        /* For Linux, GCSPR_EL0 is always readable. */
+        if (cpu_isar_feature(aa64_gcs, cpu)) {
+            env->cp15.gcscr_el[0] = GCSCRE0_NTR;
+        }
 #else
         /* Reset into the highest available EL */
         if (arm_feature(env, ARM_FEATURE_EL3)) {
-- 
2.43.0