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hw/arm/armsse: Put each CPU in its own cluster object

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Create a cluster object to hold each CPU in the SSE. They are
logically distinct and may be configured differently (for instance
one may not have an FPU where the other does).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190121185118.18550-14-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2019-02-01 14:55:42 +00:00
parent d847ca5128
commit 7cd3a2e0d5
2 changed files with 30 additions and 3 deletions
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31
hw/arm/armsse.c
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@ -147,9 +147,22 @@ static void armsse_init(Object *obj)
memory_region_init(&s->container, obj, "armsse-container", UINT64_MAX);
for (i = 0; i < info->num_cpus; i++) {
char *name = g_strdup_printf("armv7m%d", i);
sysbus_init_child_obj(obj, name, &s->armv7m[i], sizeof(s->armv7m),
TYPE_ARMV7M);
/*
* We put each CPU in its own cluster as they are logically
* distinct and may be configured differently.
*/
char *name;
name = g_strdup_printf("cluster%d", i);
object_initialize_child(obj, name, &s->cluster[i],
sizeof(s->cluster[i]), TYPE_CPU_CLUSTER,
&error_abort, NULL);
qdev_prop_set_uint32(DEVICE(&s->cluster[i]), "cluster-id", i);
g_free(name);
name = g_strdup_printf("armv7m%d", i);
sysbus_init_child_obj(OBJECT(&s->cluster[i]), name,
&s->armv7m[i], sizeof(s->armv7m), TYPE_ARMV7M);
qdev_prop_set_string(DEVICE(&s->armv7m[i]), "cpu-type",
ARM_CPU_TYPE_NAME("cortex-m33"));
g_free(name);
@ -406,6 +419,18 @@ static void armsse_realize(DeviceState *dev, Error **errp)
error_propagate(errp, err);
return;
}
/*
* The cluster must be realized after the armv7m container, as
* the container's CPU object is only created on realize, and the
* CPU must exist and have been parented into the cluster before
* the cluster is realized.
*/
object_property_set_bool(OBJECT(&s->cluster[i]),
true, "realized", &err);
if (err) {
error_propagate(errp, err);
return;
}
/* Connect EXP_IRQ/EXP_CPUn_IRQ GPIOs to the NVIC's lines 32 and up */
s->exp_irqs[i] = g_new(qemu_irq, s->exp_numirq);