Currently the cascaded output from the secondary i8259 is returned directly in the pass_irqs[] array, instead of being connected to the relevant input of the primary i8259.
This is a bug fix since in a cascaded configuration on real hardware it is possible (although unlikely) that the cascaded input from the secondary i8259 can be masked on the primary i8259. Signed-off-by: Mark Cave-Ayland <[email protected]> --- hw/intc/i8259.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/intc/i8259.c b/hw/intc/i8259.c index bfe01067b7..5f90edbe60 100644 --- a/hw/intc/i8259.c +++ b/hw/intc/i8259.c @@ -519,7 +519,8 @@ static void i8259_pic_realize(DeviceState *dev, Error **errp) } /* Wire up secondary cascade */ - qdev_connect_gpio_out(sec_dev, 0, s->pass_irqs[2]); + qdev_connect_gpio_out(sec_dev, 0, + qdev_get_gpio_in(pri_dev, 2)); for (i = 8; i < ISA_NUM_IRQS; i++) { s->pass_irqs[i] = qdev_get_gpio_in(sec_dev, i - 8); -- 2.43.0
