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authorGreg Bellows <greg.bellows@linaro.org>2014-12-15 17:09:41 -0600
committerPeter Maydell <peter.maydell@linaro.org>2014-12-22 23:12:27 +0000
commit490219243208a0fa8abb2290509f31654c888954 (patch)
tree76b74c692fb2c6544e2c7ec0a50e13a6cf535796 /hw
parentaf7c9f34b1bacd329a479e79bd608580d0511596 (diff)
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target-arm: Add vexpress machine secure property
Add "secure" Vexpress machine specific property to allow override of the default secure state configuration. By default, when using the QEMU -kernel command line argument, Vexpress machines boot into NS/SVC. When using the QEMU -bios command line argument, Vexpress machines boot into S/SVC. The secure state can be changed from the default specifying the secure state as a machine property. For example, the below command line would disable security extensions on a -kernel Linux boot: aarch64-softmmu/qemu-system-aarch64 -machine type=vexpress-a15,secure=off -kernel ... Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1418684992-8996-5-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw')
-rw-r--r--hw/arm/vexpress.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/hw/arm/vexpress.c b/hw/arm/vexpress.c
index a03cb52..8b05d47 100644
--- a/hw/arm/vexpress.c
+++ b/hw/arm/vexpress.c
@@ -164,6 +164,7 @@ typedef struct {
typedef struct {
MachineState parent;
+ bool secure;
} VexpressMachineState;
#define TYPE_VEXPRESS_MACHINE "vexpress"
@@ -701,6 +702,34 @@ static void vexpress_common_init(MachineState *machine)
arm_load_kernel(ARM_CPU(first_cpu), &daughterboard->bootinfo);
}
+static bool vexpress_get_secure(Object *obj, Error **errp)
+{
+ VexpressMachineState *vms = VEXPRESS_MACHINE(obj);
+
+ return vms->secure;
+}
+
+static void vexpress_set_secure(Object *obj, bool value, Error **errp)
+{
+ VexpressMachineState *vms = VEXPRESS_MACHINE(obj);
+
+ vms->secure = value;
+}
+
+static void vexpress_instance_init(Object *obj)
+{
+ VexpressMachineState *vms = VEXPRESS_MACHINE(obj);
+
+ /* EL3 is enabled by default on vexpress */
+ vms->secure = true;
+ object_property_add_bool(obj, "secure", vexpress_get_secure,
+ vexpress_set_secure, NULL);
+ object_property_set_description(obj, "secure",
+ "Set on/off to enable/disable the ARM "
+ "Security Extensions (TrustZone)",
+ NULL);
+}
+
static void vexpress_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
@@ -739,6 +768,7 @@ static const TypeInfo vexpress_info = {
.parent = TYPE_MACHINE,
.abstract = true,
.instance_size = sizeof(VexpressMachineState),
+ .instance_init = vexpress_instance_init,
.class_size = sizeof(VexpressMachineClass),
.class_init = vexpress_class_init,
};