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[target-arm,v5,09/10] ARM: cpu: add "reset_hivecs" property

Message ID b04216c6bda4bd163f44a55bba552d0e8267481f.1387160489.git.peter.crosthwaite@xilinx.com
State New
Headers show

Commit Message

Peter Crosthwaite Dec. 16, 2013, 2:33 a.m. UTC 
From: Antony Pavlov <antonynpavlov@gmail.com>

Add an ARM CPU property for the reset value of hivecs as it is a
board/SoC configurable setting.

The existence of the property is conditional on the ARM CPU not being M
class.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
[ PC Changes:
 * Elaborated commit message
 * refactored to use qdev_property_add_static
]
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
---
changed since v4:
Re-implemented using qdev_property_add_static

 target-arm/cpu-qom.h |  1 +
 target-arm/cpu.c     | 13 +++++++++++++
 2 files changed, 14 insertions(+)
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Patch

diff --git a/target-arm/cpu-qom.h b/target-arm/cpu-qom.h
index f32178a..afbd422 100644
--- a/target-arm/cpu-qom.h
+++ b/target-arm/cpu-qom.h
@@ -139,6 +139,7 @@  typedef struct ARMCPU {
     uint32_t ccsidr[16];
     uint32_t reset_cbar;
     uint32_t reset_auxcr;
+    bool reset_hivecs;
 } ARMCPU;
 
 #define TYPE_AARCH64_CPU "aarch64-cpu"
diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index eb9e6da..9c96a9e 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -235,6 +235,9 @@  static void arm_cpu_initfn(Object *obj)
 static Property arm_cpu_reset_cbar_property =
             DEFINE_PROP_UINT32("reset-cbar", ARMCPU, reset_cbar, 0);
 
+static Property arm_cpu_reset_hivecs_property =
+            DEFINE_PROP_BOOL("reset-hivecs", ARMCPU, reset_hivecs, false);
+
 static void arm_cpu_post_init(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
@@ -245,6 +248,12 @@  static void arm_cpu_post_init(Object *obj)
                                  &err);
         assert_no_error(err);
     }
+
+    if (!arm_feature(&cpu->env, ARM_FEATURE_M)) {
+        qdev_property_add_static(DEVICE(obj), &arm_cpu_reset_hivecs_property,
+                                 &err);
+        assert_no_error(err);
+    }
 }
 
 static void arm_cpu_finalizefn(Object *obj)
@@ -306,6 +315,10 @@  static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
         set_feature(env, ARM_FEATURE_PXN);
     }
 
+    if (cpu->reset_hivecs) {
+            cpu->reset_sctlr |= (1 << 13);
+    }
+
     register_cp_regs_for_features(cpu);
     arm_cpu_register_gdb_regs_for_features(cpu);