If a reset comes while the SMBus device is not in its idle state, it's possible for it to get confused on valid transactions post-reset.
Signed-off-by: Joe Komlodi <koml...@google.com> --- hw/i2c/smbus_slave.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/hw/i2c/smbus_slave.c b/hw/i2c/smbus_slave.c index 9f9afc25a4..4615e8b097 100644 --- a/hw/i2c/smbus_slave.c +++ b/hw/i2c/smbus_slave.c @@ -201,10 +201,19 @@ static int smbus_i2c_send(I2CSlave *s, uint8_t data) return 0; } +static void smbus_device_hold_reset(Object *obj) +{ + SMBusDevice *dev = SMBUS_DEVICE(obj); + dev->mode = SMBUS_IDLE; + dev->data_len = 0; +} + static void smbus_device_class_init(ObjectClass *klass, void *data) { I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass); + ResettableClass *rc = RESETTABLE_CLASS(klass); + rc->phases.hold = smbus_device_hold_reset; sc->event = smbus_i2c_event; sc->recv = smbus_i2c_recv; sc->send = smbus_i2c_send; -- 2.43.0.594.gd9cf4e227d-goog