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armv7m: Pass through start-powered-off CPU property 

Expose "start-powered-off" as a property of the ARMv7M container,
which we just pass through to the CPU object in the same way that we
do for "init-svtor" and "idau". (We want this for the SSE-200, which
powers up only the first CPU at reset and leaves the second powered
down.)

As with the other CPU properties here, we can't just use alias
properties, because the CPU QOM object is not created until armv7m
realize time.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190121185118.18550-4-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2019-02-01 14:55:41 +00:00
parent e4c81e3a45
commit 66647809f5
2 changed files with 11 additions and 0 deletions
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10
hw/arm/armv7m.c
View File

@ -182,6 +182,14 @@ static void armv7m_realize(DeviceState *dev, Error **errp)
return;
}
}
if (object_property_find(OBJECT(s->cpu), "start-powered-off", NULL)) {
object_property_set_bool(OBJECT(s->cpu), s->start_powered_off,
"start-powered-off", &err);
if (err != NULL) {
error_propagate(errp, err);
return;
}
}
/*
* Tell the CPU where the NVIC is; it will fail realize if it doesn't
@ -250,6 +258,8 @@ static Property armv7m_properties[] = {
DEFINE_PROP_LINK("idau", ARMv7MState, idau, TYPE_IDAU_INTERFACE, Object *),
DEFINE_PROP_UINT32("init-svtor", ARMv7MState, init_svtor, 0),
DEFINE_PROP_BOOL("enable-bitband", ARMv7MState, enable_bitband, false),
DEFINE_PROP_BOOL("start-powered-off", ARMv7MState, start_powered_off,
false),
DEFINE_PROP_END_OF_LIST(),
};

1
include/hw/arm/armv7m.h
View File

@ -65,6 +65,7 @@ typedef struct ARMv7MState {
Object *idau;
uint32_t init_svtor;
bool enable_bitband;
bool start_powered_off;
} ARMv7MState;
#endif