migration/pcspk: Add a property to state if pcspk is migrated
Allow us to turn migration of pcspk off for compatibility. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20161128133201.16104-2-dgilbert@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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@ -54,6 +54,7 @@ typedef struct {
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unsigned int play_pos;
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uint8_t data_on;
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uint8_t dummy_refresh_clock;
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bool migrate;
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} PCSpkState;
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static const char *s_spk = "pcspk";
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@ -187,11 +188,19 @@ static void pcspk_realizefn(DeviceState *dev, Error **errp)
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pcspk_state = s;
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}
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static bool migrate_needed(void *opaque)
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{
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PCSpkState *s = opaque;
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return s->migrate;
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}
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static const VMStateDescription vmstate_spk = {
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.name = "pcspk",
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.version_id = 1,
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.minimum_version_id = 1,
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.minimum_version_id_old = 1,
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.needed = migrate_needed,
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.fields = (VMStateField[]) {
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VMSTATE_UINT8(data_on, PCSpkState),
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VMSTATE_UINT8(dummy_refresh_clock, PCSpkState),
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@ -201,6 +210,7 @@ static const VMStateDescription vmstate_spk = {
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static Property pcspk_properties[] = {
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DEFINE_PROP_UINT32("iobase", PCSpkState, iobase, -1),
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DEFINE_PROP_BOOL("migrate", PCSpkState, migrate, true),
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DEFINE_PROP_END_OF_LIST(),
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};
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