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authorGreg Bellows <greg.bellows@linaro.org>2014-12-15 17:09:51 -0600
committerPeter Maydell <peter.maydell@linaro.org>2014-12-22 23:12:28 +0000
commit61e2f3521c9ee2dc3ebab2e84329d5ebd10d8518 (patch)
tree3e354355e481622dd87076aab0435dd6ce9c59c3 /hw/arm/realview.c
parent223a72f1179dc0b56bae3b01bc3e3208ef100fcc (diff)
downloadfocaccia-qemu-61e2f3521c9ee2dc3ebab2e84329d5ebd10d8518.tar.gz
focaccia-qemu-61e2f3521c9ee2dc3ebab2e84329d5ebd10d8518.zip
target-arm: Disable EL3 on unsupported machines
Disables the CPU ARM_FEATURE_EL3 featuere on machine models that can be
configured to use Cortex-A9, Cortex-A15, and ARM1176 but don't officially
support EL3.  This preserves backwards compatibility.

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1418684992-8996-15-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/arm/realview.c')
-rw-r--r--hw/arm/realview.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/hw/arm/realview.c b/hw/arm/realview.c
index d41ec97a23..66e51ef1ad 100644
--- a/hw/arm/realview.c
+++ b/hw/arm/realview.c
@@ -101,6 +101,18 @@ static void realview_init(MachineState *machine,
         Object *cpuobj = object_new(object_class_get_name(cpu_oc));
         Error *err = NULL;
 
+        /* By default A9,A15 and ARM1176 CPUs have EL3 enabled.  This board
+         * does not currently support EL3 so the CPU EL3 property is disabled
+         * before realization.
+         */
+        if (object_property_find(cpuobj, "has_el3", NULL)) {
+            object_property_set_bool(cpuobj, false, "has_el3", &err);
+            if (err) {
+                error_report("%s", error_get_pretty(err));
+                exit(1);
+            }
+        }
+
         if (is_pb && is_mpcore) {
             object_property_set_int(cpuobj, periphbase, "reset-cbar", &err);
             if (err) {