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migration/pcspk: Add a property to state if pcspk is migrated

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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>
This commit is contained in:
Dr. David Alan Gilbert 2016-11-28 13:32:00 +00:00 committed by Paolo Bonzini
parent 64e184e260
commit 04e27c6bb0
1 changed files with 10 additions and 0 deletions
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10
hw/audio/pcspk.c
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@ -54,6 +54,7 @@ typedef struct {
unsigned int play_pos;
uint8_t data_on;
uint8_t dummy_refresh_clock;
bool migrate;
} PCSpkState;
static const char *s_spk = "pcspk";
@ -187,11 +188,19 @@ static void pcspk_realizefn(DeviceState *dev, Error **errp)
pcspk_state = s;
}
static bool migrate_needed(void *opaque)
{
PCSpkState *s = opaque;
return s->migrate;
}
static const VMStateDescription vmstate_spk = {
.name = "pcspk",
.version_id = 1,
.minimum_version_id = 1,
.minimum_version_id_old = 1,
.needed = migrate_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT8(data_on, PCSpkState),
VMSTATE_UINT8(dummy_refresh_clock, PCSpkState),
@ -201,6 +210,7 @@ static const VMStateDescription vmstate_spk = {
static Property pcspk_properties[] = {
DEFINE_PROP_UINT32("iobase", PCSpkState, iobase, -1),
DEFINE_PROP_BOOL("migrate", PCSpkState, migrate, true),
DEFINE_PROP_END_OF_LIST(),
};